| version 1.105, 2010/12/01 16:54:25 |
version 1.383, 2022/04/24 17:40:22 |
|
|
| /* $Id$ */ |
/* $Id$ */ |
| /* |
/* |
| * Copyright (c) 2010 Kristaps Dzonsons <kristaps@bsd.lv> |
* Copyright (c) 2010-2015, 2017-2022 Ingo Schwarze <schwarze@openbsd.org> |
| * Copyright (c) 2010 Ingo Schwarze <schwarze@openbsd.org> |
* Copyright (c) 2008-2012, 2014 Kristaps Dzonsons <kristaps@bsd.lv> |
| * |
* |
| * Permission to use, copy, modify, and distribute this software for any |
* Permission to use, copy, modify, and distribute this software for any |
| * purpose with or without fee is hereby granted, provided that the above |
* purpose with or without fee is hereby granted, provided that the above |
| * copyright notice and this permission notice appear in all copies. |
* copyright notice and this permission notice appear in all copies. |
| * |
* |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR |
| * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| |
* |
| |
* Implementation of the roff(7) parser for mandoc(1). |
| */ |
*/ |
| #ifdef HAVE_CONFIG_H |
|
| #include "config.h" |
#include "config.h" |
| #endif |
|
| |
|
| |
#include <sys/types.h> |
| |
|
| #include <assert.h> |
#include <assert.h> |
| #include <errno.h> |
|
| #include <ctype.h> |
#include <ctype.h> |
| #include <limits.h> |
#include <limits.h> |
| |
#include <stddef.h> |
| |
#include <stdint.h> |
| |
#include <stdio.h> |
| #include <stdlib.h> |
#include <stdlib.h> |
| #include <string.h> |
#include <string.h> |
| #include <stdio.h> |
|
| |
|
| |
#include "mandoc_aux.h" |
| |
#include "mandoc_ohash.h" |
| #include "mandoc.h" |
#include "mandoc.h" |
| #include "roff.h" |
#include "roff.h" |
| |
#include "mandoc_parse.h" |
| #include "libmandoc.h" |
#include "libmandoc.h" |
| |
#include "roff_int.h" |
| |
#include "tbl_parse.h" |
| |
#include "eqn_parse.h" |
| |
|
| #define RSTACK_MAX 128 |
/* |
| |
* ASCII_ESC is used to signal from roff_getarg() to roff_expand() |
| |
* that an escape sequence resulted from copy-in processing and |
| |
* needs to be checked or interpolated. As it is used nowhere |
| |
* else, it is defined here rather than in a header file. |
| |
*/ |
| |
#define ASCII_ESC 27 |
| |
|
| #define ROFF_CTL(c) \ |
/* Maximum number of string expansions per line, to break infinite loops. */ |
| ('.' == (c) || '\'' == (c)) |
#define EXPAND_LIMIT 1000 |
| |
|
| #if 1 |
/* Types of definitions of macros and strings. */ |
| #define ROFF_DEBUG(fmt, args...) \ |
#define ROFFDEF_USER (1 << 1) /* User-defined. */ |
| do { /* Nothing. */ } while (/*CONSTCOND*/ 0) |
#define ROFFDEF_PRE (1 << 2) /* Predefined. */ |
| #else |
#define ROFFDEF_REN (1 << 3) /* Renamed standard macro. */ |
| #define ROFF_DEBUG(fmt, args...) \ |
#define ROFFDEF_STD (1 << 4) /* mdoc(7) or man(7) macro. */ |
| do { fprintf(stderr, fmt , ##args); } while (/*CONSTCOND*/ 0) |
#define ROFFDEF_ANY (ROFFDEF_USER | ROFFDEF_PRE | \ |
| #endif |
ROFFDEF_REN | ROFFDEF_STD) |
| |
#define ROFFDEF_UNDEF (1 << 5) /* Completely undefined. */ |
| |
|
| enum rofft { |
/* --- data types --------------------------------------------------------- */ |
| ROFF_ad, |
|
| ROFF_am, |
/* |
| ROFF_ami, |
* An incredibly-simple string buffer. |
| ROFF_am1, |
*/ |
| ROFF_de, |
struct roffstr { |
| ROFF_dei, |
char *p; /* nil-terminated buffer */ |
| ROFF_de1, |
size_t sz; /* saved strlen(p) */ |
| ROFF_ds, |
|
| ROFF_el, |
|
| ROFF_hy, |
|
| ROFF_ie, |
|
| ROFF_if, |
|
| ROFF_ig, |
|
| ROFF_ne, |
|
| ROFF_nh, |
|
| ROFF_nr, |
|
| ROFF_rm, |
|
| ROFF_so, |
|
| ROFF_tr, |
|
| ROFF_cblock, |
|
| ROFF_ccond, /* FIXME: remove this. */ |
|
| ROFF_MAX |
|
| }; |
}; |
| |
|
| enum roffrule { |
/* |
| ROFFRULE_ALLOW, |
* A key-value roffstr pair as part of a singly-linked list. |
| ROFFRULE_DENY |
*/ |
| |
struct roffkv { |
| |
struct roffstr key; |
| |
struct roffstr val; |
| |
struct roffkv *next; /* next in list */ |
| }; |
}; |
| |
|
| |
/* |
| |
* A single number register as part of a singly-linked list. |
| |
*/ |
| |
struct roffreg { |
| |
struct roffstr key; |
| |
int val; |
| |
int step; |
| |
struct roffreg *next; |
| |
}; |
| |
|
| struct roffstr { |
/* |
| char *name; /* key of symbol */ |
* Association of request and macro names with token IDs. |
| char *string; /* current value */ |
*/ |
| struct roffstr *next; /* next in list */ |
struct roffreq { |
| |
enum roff_tok tok; |
| |
char name[]; |
| }; |
}; |
| |
|
| |
/* |
| |
* A macro processing context. |
| |
* More than one is needed when macro calls are nested. |
| |
*/ |
| |
struct mctx { |
| |
char **argv; |
| |
int argc; |
| |
int argsz; |
| |
}; |
| |
|
| struct roff { |
struct roff { |
| |
struct roff_man *man; /* mdoc or man parser */ |
| struct roffnode *last; /* leaf of stack */ |
struct roffnode *last; /* leaf of stack */ |
| mandocmsg msg; /* err/warn/fatal messages */ |
struct mctx *mstack; /* stack of macro contexts */ |
| void *data; /* privdata for messages */ |
int *rstack; /* stack of inverted `ie' values */ |
| enum roffrule rstack[RSTACK_MAX]; /* stack of !`ie' rules */ |
struct ohash *reqtab; /* request lookup table */ |
| |
struct roffreg *regtab; /* number registers */ |
| |
struct roffkv *strtab; /* user-defined strings & macros */ |
| |
struct roffkv *rentab; /* renamed strings & macros */ |
| |
struct roffkv *xmbtab; /* multi-byte trans table (`tr') */ |
| |
struct roffstr *xtab; /* single-byte trans table (`tr') */ |
| |
const char *current_string; /* value of last called user macro */ |
| |
struct tbl_node *first_tbl; /* first table parsed */ |
| |
struct tbl_node *last_tbl; /* last table parsed */ |
| |
struct tbl_node *tbl; /* current table being parsed */ |
| |
struct eqn_node *last_eqn; /* equation parser */ |
| |
struct eqn_node *eqn; /* active equation parser */ |
| |
int eqn_inline; /* current equation is inline */ |
| |
int options; /* parse options */ |
| |
int mstacksz; /* current size of mstack */ |
| |
int mstackpos; /* position in mstack */ |
| |
int rstacksz; /* current size limit of rstack */ |
| int rstackpos; /* position in rstack */ |
int rstackpos; /* position in rstack */ |
| struct regset *regs; /* read/writable registers */ |
int format; /* current file in mdoc or man format */ |
| struct roffstr *first_string; |
char control; /* control character */ |
| |
char escape; /* escape character */ |
| }; |
}; |
| |
|
| |
/* |
| |
* A macro definition, condition, or ignored block. |
| |
*/ |
| struct roffnode { |
struct roffnode { |
| enum rofft tok; /* type of node */ |
enum roff_tok tok; /* type of node */ |
| struct roffnode *parent; /* up one in stack */ |
struct roffnode *parent; /* up one in stack */ |
| int line; /* parse line */ |
int line; /* parse line */ |
| int col; /* parse col */ |
int col; /* parse col */ |
| char *end; /* end-rules: custom token */ |
char *name; /* node name, e.g. macro name */ |
| int endspan; /* end-rules: next-line or infty */ |
char *end; /* custom end macro of the block */ |
| enum roffrule rule; /* current evaluation rule */ |
int endspan; /* scope to: 1=eol 2=next line -1=\} */ |
| |
int rule; /* content is: 1=evaluated 0=skipped */ |
| }; |
}; |
| |
|
| #define ROFF_ARGS struct roff *r, /* parse ctx */ \ |
#define ROFF_ARGS struct roff *r, /* parse ctx */ \ |
| enum rofft tok, /* tok of macro */ \ |
enum roff_tok tok, /* tok of macro */ \ |
| char **bufp, /* input buffer */ \ |
struct buf *buf, /* input buffer */ \ |
| size_t *szp, /* size of input buffer */ \ |
|
| int ln, /* parse line */ \ |
int ln, /* parse line */ \ |
| int ppos, /* original pos in buffer */ \ |
int ppos, /* original pos in buffer */ \ |
| int pos, /* current pos in buffer */ \ |
int pos, /* current pos in buffer */ \ |
| int *offs /* reset offset of buffer data */ |
int *offs /* reset offset of buffer data */ |
| |
|
| typedef enum rofferr (*roffproc)(ROFF_ARGS); |
typedef int (*roffproc)(ROFF_ARGS); |
| |
|
| struct roffmac { |
struct roffmac { |
| const char *name; /* macro name */ |
|
| roffproc proc; /* process new macro */ |
roffproc proc; /* process new macro */ |
| roffproc text; /* process as child text of macro */ |
roffproc text; /* process as child text of macro */ |
| roffproc sub; /* process as child of macro */ |
roffproc sub; /* process as child of macro */ |
| int flags; |
int flags; |
| #define ROFFMAC_STRUCT (1 << 0) /* always interpret */ |
#define ROFFMAC_STRUCT (1 << 0) /* always interpret */ |
| struct roffmac *next; |
|
| }; |
}; |
| |
|
| static enum rofferr roff_block(ROFF_ARGS); |
struct predef { |
| static enum rofferr roff_block_text(ROFF_ARGS); |
const char *name; /* predefined input name */ |
| static enum rofferr roff_block_sub(ROFF_ARGS); |
const char *str; /* replacement symbol */ |
| static enum rofferr roff_cblock(ROFF_ARGS); |
}; |
| static enum rofferr roff_ccond(ROFF_ARGS); |
|
| static enum rofferr roff_cond(ROFF_ARGS); |
#define PREDEF(__name, __str) \ |
| static enum rofferr roff_cond_text(ROFF_ARGS); |
{ (__name), (__str) }, |
| static enum rofferr roff_cond_sub(ROFF_ARGS); |
|
| static enum rofferr roff_ds(ROFF_ARGS); |
/* --- function prototypes ------------------------------------------------ */ |
| static enum roffrule roff_evalcond(const char *, int *); |
|
| static void roff_freestr(struct roff *); |
static int roffnode_cleanscope(struct roff *); |
| static const char *roff_getstrn(const struct roff *, |
static int roffnode_pop(struct roff *); |
| |
static void roffnode_push(struct roff *, enum roff_tok, |
| |
const char *, int, int); |
| |
static void roff_addtbl(struct roff_man *, int, struct tbl_node *); |
| |
static int roff_als(ROFF_ARGS); |
| |
static int roff_block(ROFF_ARGS); |
| |
static int roff_block_text(ROFF_ARGS); |
| |
static int roff_block_sub(ROFF_ARGS); |
| |
static int roff_break(ROFF_ARGS); |
| |
static int roff_cblock(ROFF_ARGS); |
| |
static int roff_cc(ROFF_ARGS); |
| |
static int roff_ccond(struct roff *, int, int); |
| |
static int roff_char(ROFF_ARGS); |
| |
static int roff_cond(ROFF_ARGS); |
| |
static int roff_cond_checkend(ROFF_ARGS); |
| |
static int roff_cond_text(ROFF_ARGS); |
| |
static int roff_cond_sub(ROFF_ARGS); |
| |
static int roff_ds(ROFF_ARGS); |
| |
static int roff_ec(ROFF_ARGS); |
| |
static int roff_eo(ROFF_ARGS); |
| |
static int roff_eqndelim(struct roff *, struct buf *, int); |
| |
static int roff_evalcond(struct roff *, int, char *, int *); |
| |
static int roff_evalnum(struct roff *, int, |
| |
const char *, int *, int *, int); |
| |
static int roff_evalpar(struct roff *, int, |
| |
const char *, int *, int *, int); |
| |
static int roff_evalstrcond(const char *, int *); |
| |
static int roff_expand(struct roff *, struct buf *, |
| |
int, int, char); |
| |
static void roff_free1(struct roff *); |
| |
static void roff_freereg(struct roffreg *); |
| |
static void roff_freestr(struct roffkv *); |
| |
static size_t roff_getname(struct roff *, char **, int, int); |
| |
static int roff_getnum(const char *, int *, int *, int); |
| |
static int roff_getop(const char *, int *, char *); |
| |
static int roff_getregn(struct roff *, |
| |
const char *, size_t, char); |
| |
static int roff_getregro(const struct roff *, |
| |
const char *name); |
| |
static const char *roff_getstrn(struct roff *, |
| |
const char *, size_t, int *); |
| |
static int roff_hasregn(const struct roff *, |
| const char *, size_t); |
const char *, size_t); |
| static enum rofferr roff_line_ignore(ROFF_ARGS); |
static int roff_insec(ROFF_ARGS); |
| static enum rofferr roff_line_error(ROFF_ARGS); |
static int roff_it(ROFF_ARGS); |
| static enum rofferr roff_nr(ROFF_ARGS); |
static int roff_line_ignore(ROFF_ARGS); |
| static int roff_res(struct roff *, |
static void roff_man_alloc1(struct roff_man *); |
| char **, size_t *, int); |
static void roff_man_free1(struct roff_man *); |
| |
static int roff_manyarg(ROFF_ARGS); |
| |
static int roff_noarg(ROFF_ARGS); |
| |
static int roff_nop(ROFF_ARGS); |
| |
static int roff_nr(ROFF_ARGS); |
| |
static int roff_onearg(ROFF_ARGS); |
| |
static enum roff_tok roff_parse(struct roff *, char *, int *, |
| |
int, int); |
| |
static int roff_parsetext(struct roff *, struct buf *, |
| |
int, int *); |
| |
static int roff_renamed(ROFF_ARGS); |
| |
static int roff_return(ROFF_ARGS); |
| |
static int roff_rm(ROFF_ARGS); |
| |
static int roff_rn(ROFF_ARGS); |
| |
static int roff_rr(ROFF_ARGS); |
| |
static void roff_setregn(struct roff *, const char *, |
| |
size_t, int, char, int); |
| static void roff_setstr(struct roff *, |
static void roff_setstr(struct roff *, |
| const char *, const char *); |
const char *, const char *, int); |
| static enum rofferr roff_so(ROFF_ARGS); |
static void roff_setstrn(struct roffkv **, const char *, |
| static char *roff_strdup(const char *); |
size_t, const char *, size_t, int); |
| |
static int roff_shift(ROFF_ARGS); |
| |
static int roff_so(ROFF_ARGS); |
| |
static int roff_tr(ROFF_ARGS); |
| |
static int roff_Dd(ROFF_ARGS); |
| |
static int roff_TE(ROFF_ARGS); |
| |
static int roff_TS(ROFF_ARGS); |
| |
static int roff_EQ(ROFF_ARGS); |
| |
static int roff_EN(ROFF_ARGS); |
| |
static int roff_T_(ROFF_ARGS); |
| |
static int roff_unsupp(ROFF_ARGS); |
| |
static int roff_userdef(ROFF_ARGS); |
| |
|
| /* See roff_hash_find() */ |
/* --- constant data ------------------------------------------------------ */ |
| |
|
| #define ASCII_HI 126 |
#define ROFFNUM_SCALE (1 << 0) /* Honour scaling in roff_getnum(). */ |
| #define ASCII_LO 33 |
#define ROFFNUM_WHITE (1 << 1) /* Skip whitespace in roff_evalnum(). */ |
| #define HASHWIDTH (ASCII_HI - ASCII_LO + 1) |
|
| |
|
| static struct roffmac *hash[HASHWIDTH]; |
const char *__roff_name[MAN_MAX + 1] = { |
| |
"br", "ce", "fi", "ft", |
| |
"ll", "mc", "nf", |
| |
"po", "rj", "sp", |
| |
"ta", "ti", NULL, |
| |
"ab", "ad", "af", "aln", |
| |
"als", "am", "am1", "ami", |
| |
"ami1", "as", "as1", "asciify", |
| |
"backtrace", "bd", "bleedat", "blm", |
| |
"box", "boxa", "bp", "BP", |
| |
"break", "breakchar", "brnl", "brp", |
| |
"brpnl", "c2", "cc", |
| |
"cf", "cflags", "ch", "char", |
| |
"chop", "class", "close", "CL", |
| |
"color", "composite", "continue", "cp", |
| |
"cropat", "cs", "cu", "da", |
| |
"dch", "Dd", "de", "de1", |
| |
"defcolor", "dei", "dei1", "device", |
| |
"devicem", "di", "do", "ds", |
| |
"ds1", "dwh", "dt", "ec", |
| |
"ecr", "ecs", "el", "em", |
| |
"EN", "eo", "EP", "EQ", |
| |
"errprint", "ev", "evc", "ex", |
| |
"fallback", "fam", "fc", "fchar", |
| |
"fcolor", "fdeferlig", "feature", "fkern", |
| |
"fl", "flig", "fp", "fps", |
| |
"fschar", "fspacewidth", "fspecial", "ftr", |
| |
"fzoom", "gcolor", "hc", "hcode", |
| |
"hidechar", "hla", "hlm", "hpf", |
| |
"hpfa", "hpfcode", "hw", "hy", |
| |
"hylang", "hylen", "hym", "hypp", |
| |
"hys", "ie", "if", "ig", |
| |
"index", "it", "itc", "IX", |
| |
"kern", "kernafter", "kernbefore", "kernpair", |
| |
"lc", "lc_ctype", "lds", "length", |
| |
"letadj", "lf", "lg", "lhang", |
| |
"linetabs", "lnr", "lnrf", "lpfx", |
| |
"ls", "lsm", "lt", |
| |
"mediasize", "minss", "mk", "mso", |
| |
"na", "ne", "nh", "nhychar", |
| |
"nm", "nn", "nop", "nr", |
| |
"nrf", "nroff", "ns", "nx", |
| |
"open", "opena", "os", "output", |
| |
"padj", "papersize", "pc", "pev", |
| |
"pi", "PI", "pl", "pm", |
| |
"pn", "pnr", "ps", |
| |
"psbb", "pshape", "pso", "ptr", |
| |
"pvs", "rchar", "rd", "recursionlimit", |
| |
"return", "rfschar", "rhang", |
| |
"rm", "rn", "rnn", "rr", |
| |
"rs", "rt", "schar", "sentchar", |
| |
"shc", "shift", "sizes", "so", |
| |
"spacewidth", "special", "spreadwarn", "ss", |
| |
"sty", "substring", "sv", "sy", |
| |
"T&", "tc", "TE", |
| |
"TH", "tkf", "tl", |
| |
"tm", "tm1", "tmc", "tr", |
| |
"track", "transchar", "trf", "trimat", |
| |
"trin", "trnt", "troff", "TS", |
| |
"uf", "ul", "unformat", "unwatch", |
| |
"unwatchn", "vpt", "vs", "warn", |
| |
"warnscale", "watch", "watchlength", "watchn", |
| |
"wh", "while", "write", "writec", |
| |
"writem", "xflag", ".", NULL, |
| |
NULL, "text", |
| |
"Dd", "Dt", "Os", "Sh", |
| |
"Ss", "Pp", "D1", "Dl", |
| |
"Bd", "Ed", "Bl", "El", |
| |
"It", "Ad", "An", "Ap", |
| |
"Ar", "Cd", "Cm", "Dv", |
| |
"Er", "Ev", "Ex", "Fa", |
| |
"Fd", "Fl", "Fn", "Ft", |
| |
"Ic", "In", "Li", "Nd", |
| |
"Nm", "Op", "Ot", "Pa", |
| |
"Rv", "St", "Va", "Vt", |
| |
"Xr", "%A", "%B", "%D", |
| |
"%I", "%J", "%N", "%O", |
| |
"%P", "%R", "%T", "%V", |
| |
"Ac", "Ao", "Aq", "At", |
| |
"Bc", "Bf", "Bo", "Bq", |
| |
"Bsx", "Bx", "Db", "Dc", |
| |
"Do", "Dq", "Ec", "Ef", |
| |
"Em", "Eo", "Fx", "Ms", |
| |
"No", "Ns", "Nx", "Ox", |
| |
"Pc", "Pf", "Po", "Pq", |
| |
"Qc", "Ql", "Qo", "Qq", |
| |
"Re", "Rs", "Sc", "So", |
| |
"Sq", "Sm", "Sx", "Sy", |
| |
"Tn", "Ux", "Xc", "Xo", |
| |
"Fo", "Fc", "Oo", "Oc", |
| |
"Bk", "Ek", "Bt", "Hf", |
| |
"Fr", "Ud", "Lb", "Lp", |
| |
"Lk", "Mt", "Brq", "Bro", |
| |
"Brc", "%C", "Es", "En", |
| |
"Dx", "%Q", "%U", "Ta", |
| |
"Tg", NULL, |
| |
"TH", "SH", "SS", "TP", |
| |
"TQ", |
| |
"LP", "PP", "P", "IP", |
| |
"HP", "SM", "SB", "BI", |
| |
"IB", "BR", "RB", "R", |
| |
"B", "I", "IR", "RI", |
| |
"RE", "RS", "DT", "UC", |
| |
"PD", "AT", "in", |
| |
"SY", "YS", "OP", |
| |
"EX", "EE", "UR", |
| |
"UE", "MT", "ME", NULL |
| |
}; |
| |
const char *const *roff_name = __roff_name; |
| |
|
| static struct roffmac roffs[ROFF_MAX] = { |
static struct roffmac roffs[TOKEN_NONE] = { |
| { "ad", roff_line_ignore, NULL, NULL, 0, NULL }, |
{ roff_noarg, NULL, NULL, 0 }, /* br */ |
| { "am", roff_block, roff_block_text, roff_block_sub, 0, NULL }, |
{ roff_onearg, NULL, NULL, 0 }, /* ce */ |
| { "ami", roff_block, roff_block_text, roff_block_sub, 0, NULL }, |
{ roff_noarg, NULL, NULL, 0 }, /* fi */ |
| { "am1", roff_block, roff_block_text, roff_block_sub, 0, NULL }, |
{ roff_onearg, NULL, NULL, 0 }, /* ft */ |
| { "de", roff_block, roff_block_text, roff_block_sub, 0, NULL }, |
{ roff_onearg, NULL, NULL, 0 }, /* ll */ |
| { "dei", roff_block, roff_block_text, roff_block_sub, 0, NULL }, |
{ roff_onearg, NULL, NULL, 0 }, /* mc */ |
| { "de1", roff_block, roff_block_text, roff_block_sub, 0, NULL }, |
{ roff_noarg, NULL, NULL, 0 }, /* nf */ |
| { "ds", roff_ds, NULL, NULL, 0, NULL }, |
{ roff_onearg, NULL, NULL, 0 }, /* po */ |
| { "el", roff_cond, roff_cond_text, roff_cond_sub, ROFFMAC_STRUCT, NULL }, |
{ roff_onearg, NULL, NULL, 0 }, /* rj */ |
| { "hy", roff_line_ignore, NULL, NULL, 0, NULL }, |
{ roff_onearg, NULL, NULL, 0 }, /* sp */ |
| { "ie", roff_cond, roff_cond_text, roff_cond_sub, ROFFMAC_STRUCT, NULL }, |
{ roff_manyarg, NULL, NULL, 0 }, /* ta */ |
| { "if", roff_cond, roff_cond_text, roff_cond_sub, ROFFMAC_STRUCT, NULL }, |
{ roff_onearg, NULL, NULL, 0 }, /* ti */ |
| { "ig", roff_block, roff_block_text, roff_block_sub, 0, NULL }, |
{ NULL, NULL, NULL, 0 }, /* ROFF_MAX */ |
| { "ne", roff_line_ignore, NULL, NULL, 0, NULL }, |
{ roff_unsupp, NULL, NULL, 0 }, /* ab */ |
| { "nh", roff_line_ignore, NULL, NULL, 0, NULL }, |
{ roff_line_ignore, NULL, NULL, 0 }, /* ad */ |
| { "nr", roff_nr, NULL, NULL, 0, NULL }, |
{ roff_line_ignore, NULL, NULL, 0 }, /* af */ |
| { "rm", roff_line_error, NULL, NULL, 0, NULL }, |
{ roff_unsupp, NULL, NULL, 0 }, /* aln */ |
| { "so", roff_so, NULL, NULL, 0, NULL }, |
{ roff_als, NULL, NULL, 0 }, /* als */ |
| { "tr", roff_line_ignore, NULL, NULL, 0, NULL }, |
{ roff_block, roff_block_text, roff_block_sub, 0 }, /* am */ |
| { ".", roff_cblock, NULL, NULL, 0, NULL }, |
{ roff_block, roff_block_text, roff_block_sub, 0 }, /* am1 */ |
| { "\\}", roff_ccond, NULL, NULL, 0, NULL }, |
{ roff_block, roff_block_text, roff_block_sub, 0 }, /* ami */ |
| |
{ roff_block, roff_block_text, roff_block_sub, 0 }, /* ami1 */ |
| |
{ roff_ds, NULL, NULL, 0 }, /* as */ |
| |
{ roff_ds, NULL, NULL, 0 }, /* as1 */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* asciify */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* backtrace */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* bd */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* bleedat */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* blm */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* box */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* boxa */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* bp */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* BP */ |
| |
{ roff_break, NULL, NULL, 0 }, /* break */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* breakchar */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* brnl */ |
| |
{ roff_noarg, NULL, NULL, 0 }, /* brp */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* brpnl */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* c2 */ |
| |
{ roff_cc, NULL, NULL, 0 }, /* cc */ |
| |
{ roff_insec, NULL, NULL, 0 }, /* cf */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* cflags */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* ch */ |
| |
{ roff_char, NULL, NULL, 0 }, /* char */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* chop */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* class */ |
| |
{ roff_insec, NULL, NULL, 0 }, /* close */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* CL */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* color */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* composite */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* continue */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* cp */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* cropat */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* cs */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* cu */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* da */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* dch */ |
| |
{ roff_Dd, NULL, NULL, 0 }, /* Dd */ |
| |
{ roff_block, roff_block_text, roff_block_sub, 0 }, /* de */ |
| |
{ roff_block, roff_block_text, roff_block_sub, 0 }, /* de1 */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* defcolor */ |
| |
{ roff_block, roff_block_text, roff_block_sub, 0 }, /* dei */ |
| |
{ roff_block, roff_block_text, roff_block_sub, 0 }, /* dei1 */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* device */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* devicem */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* di */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* do */ |
| |
{ roff_ds, NULL, NULL, 0 }, /* ds */ |
| |
{ roff_ds, NULL, NULL, 0 }, /* ds1 */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* dwh */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* dt */ |
| |
{ roff_ec, NULL, NULL, 0 }, /* ec */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* ecr */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* ecs */ |
| |
{ roff_cond, roff_cond_text, roff_cond_sub, ROFFMAC_STRUCT }, /* el */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* em */ |
| |
{ roff_EN, NULL, NULL, 0 }, /* EN */ |
| |
{ roff_eo, NULL, NULL, 0 }, /* eo */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* EP */ |
| |
{ roff_EQ, NULL, NULL, 0 }, /* EQ */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* errprint */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* ev */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* evc */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* ex */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* fallback */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* fam */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* fc */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* fchar */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* fcolor */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* fdeferlig */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* feature */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* fkern */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* fl */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* flig */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* fp */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* fps */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* fschar */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* fspacewidth */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* fspecial */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* ftr */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* fzoom */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* gcolor */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* hc */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* hcode */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* hidechar */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* hla */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* hlm */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* hpf */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* hpfa */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* hpfcode */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* hw */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* hy */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* hylang */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* hylen */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* hym */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* hypp */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* hys */ |
| |
{ roff_cond, roff_cond_text, roff_cond_sub, ROFFMAC_STRUCT }, /* ie */ |
| |
{ roff_cond, roff_cond_text, roff_cond_sub, ROFFMAC_STRUCT }, /* if */ |
| |
{ roff_block, roff_block_text, roff_block_sub, 0 }, /* ig */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* index */ |
| |
{ roff_it, NULL, NULL, 0 }, /* it */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* itc */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* IX */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* kern */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* kernafter */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* kernbefore */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* kernpair */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* lc */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* lc_ctype */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* lds */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* length */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* letadj */ |
| |
{ roff_insec, NULL, NULL, 0 }, /* lf */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* lg */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* lhang */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* linetabs */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* lnr */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* lnrf */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* lpfx */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* ls */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* lsm */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* lt */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* mediasize */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* minss */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* mk */ |
| |
{ roff_insec, NULL, NULL, 0 }, /* mso */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* na */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* ne */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* nh */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* nhychar */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* nm */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* nn */ |
| |
{ roff_nop, NULL, NULL, 0 }, /* nop */ |
| |
{ roff_nr, NULL, NULL, 0 }, /* nr */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* nrf */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* nroff */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* ns */ |
| |
{ roff_insec, NULL, NULL, 0 }, /* nx */ |
| |
{ roff_insec, NULL, NULL, 0 }, /* open */ |
| |
{ roff_insec, NULL, NULL, 0 }, /* opena */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* os */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* output */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* padj */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* papersize */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* pc */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* pev */ |
| |
{ roff_insec, NULL, NULL, 0 }, /* pi */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* PI */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* pl */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* pm */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* pn */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* pnr */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* ps */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* psbb */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* pshape */ |
| |
{ roff_insec, NULL, NULL, 0 }, /* pso */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* ptr */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* pvs */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* rchar */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* rd */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* recursionlimit */ |
| |
{ roff_return, NULL, NULL, 0 }, /* return */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* rfschar */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* rhang */ |
| |
{ roff_rm, NULL, NULL, 0 }, /* rm */ |
| |
{ roff_rn, NULL, NULL, 0 }, /* rn */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* rnn */ |
| |
{ roff_rr, NULL, NULL, 0 }, /* rr */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* rs */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* rt */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* schar */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* sentchar */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* shc */ |
| |
{ roff_shift, NULL, NULL, 0 }, /* shift */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* sizes */ |
| |
{ roff_so, NULL, NULL, 0 }, /* so */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* spacewidth */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* special */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* spreadwarn */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* ss */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* sty */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* substring */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* sv */ |
| |
{ roff_insec, NULL, NULL, 0 }, /* sy */ |
| |
{ roff_T_, NULL, NULL, 0 }, /* T& */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* tc */ |
| |
{ roff_TE, NULL, NULL, 0 }, /* TE */ |
| |
{ roff_Dd, NULL, NULL, 0 }, /* TH */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* tkf */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* tl */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* tm */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* tm1 */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* tmc */ |
| |
{ roff_tr, NULL, NULL, 0 }, /* tr */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* track */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* transchar */ |
| |
{ roff_insec, NULL, NULL, 0 }, /* trf */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* trimat */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* trin */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* trnt */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* troff */ |
| |
{ roff_TS, NULL, NULL, 0 }, /* TS */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* uf */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* ul */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* unformat */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* unwatch */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* unwatchn */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* vpt */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* vs */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* warn */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* warnscale */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* watch */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* watchlength */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* watchn */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* wh */ |
| |
{ roff_cond, roff_cond_text, roff_cond_sub, ROFFMAC_STRUCT }, /*while*/ |
| |
{ roff_insec, NULL, NULL, 0 }, /* write */ |
| |
{ roff_insec, NULL, NULL, 0 }, /* writec */ |
| |
{ roff_insec, NULL, NULL, 0 }, /* writem */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* xflag */ |
| |
{ roff_cblock, NULL, NULL, 0 }, /* . */ |
| |
{ roff_renamed, NULL, NULL, 0 }, |
| |
{ roff_userdef, NULL, NULL, 0 } |
| }; |
}; |
| |
|
| static void roff_free1(struct roff *); |
/* Array of injected predefined strings. */ |
| static enum rofft roff_hash_find(const char *); |
#define PREDEFS_MAX 38 |
| static void roff_hash_init(void); |
static const struct predef predefs[PREDEFS_MAX] = { |
| static void roffnode_cleanscope(struct roff *); |
#include "predefs.in" |
| static void roffnode_push(struct roff *, |
}; |
| enum rofft, int, int); |
|
| static void roffnode_pop(struct roff *); |
|
| static enum rofft roff_parse(const char *, int *); |
|
| static int roff_parse_nat(const char *, unsigned int *); |
|
| |
|
| /* See roff_hash_find() */ |
static int roffce_lines; /* number of input lines to center */ |
| #define ROFF_HASH(p) (p[0] - ASCII_LO) |
static struct roff_node *roffce_node; /* active request */ |
| |
static int roffit_lines; /* number of lines to delay */ |
| |
static char *roffit_macro; /* nil-terminated macro line */ |
| |
|
| static void |
|
| roff_hash_init(void) |
|
| { |
|
| struct roffmac *n; |
|
| int buc, i; |
|
| |
|
| for (i = 0; i < (int)ROFF_MAX; i++) { |
/* --- request table ------------------------------------------------------ */ |
| assert(roffs[i].name[0] >= ASCII_LO); |
|
| assert(roffs[i].name[0] <= ASCII_HI); |
|
| |
|
| buc = ROFF_HASH(roffs[i].name); |
struct ohash * |
| |
roffhash_alloc(enum roff_tok mintok, enum roff_tok maxtok) |
| |
{ |
| |
struct ohash *htab; |
| |
struct roffreq *req; |
| |
enum roff_tok tok; |
| |
size_t sz; |
| |
unsigned int slot; |
| |
|
| if (NULL != (n = hash[buc])) { |
htab = mandoc_malloc(sizeof(*htab)); |
| for ( ; n->next; n = n->next) |
mandoc_ohash_init(htab, 8, offsetof(struct roffreq, name)); |
| /* Do nothing. */ ; |
|
| n->next = &roffs[i]; |
for (tok = mintok; tok < maxtok; tok++) { |
| } else |
if (roff_name[tok] == NULL) |
| hash[buc] = &roffs[i]; |
continue; |
| |
sz = strlen(roff_name[tok]); |
| |
req = mandoc_malloc(sizeof(*req) + sz + 1); |
| |
req->tok = tok; |
| |
memcpy(req->name, roff_name[tok], sz + 1); |
| |
slot = ohash_qlookup(htab, req->name); |
| |
ohash_insert(htab, slot, req); |
| } |
} |
| |
return htab; |
| } |
} |
| |
|
| |
void |
| /* |
roffhash_free(struct ohash *htab) |
| * Look up a roff token by its name. Returns ROFF_MAX if no macro by |
|
| * the nil-terminated string name could be found. |
|
| */ |
|
| static enum rofft |
|
| roff_hash_find(const char *p) |
|
| { |
{ |
| int buc; |
struct roffreq *req; |
| struct roffmac *n; |
unsigned int slot; |
| |
|
| /* |
if (htab == NULL) |
| * libroff has an extremely simple hashtable, for the time |
return; |
| * being, which simply keys on the first character, which must |
for (req = ohash_first(htab, &slot); req != NULL; |
| * be printable, then walks a chain. It works well enough until |
req = ohash_next(htab, &slot)) |
| * optimised. |
free(req); |
| */ |
ohash_delete(htab); |
| |
free(htab); |
| |
} |
| |
|
| if (p[0] < ASCII_LO || p[0] > ASCII_HI) |
enum roff_tok |
| return(ROFF_MAX); |
roffhash_find(struct ohash *htab, const char *name, size_t sz) |
| |
{ |
| |
struct roffreq *req; |
| |
const char *end; |
| |
|
| buc = ROFF_HASH(p); |
if (sz) { |
| |
end = name + sz; |
| if (NULL == (n = hash[buc])) |
req = ohash_find(htab, ohash_qlookupi(htab, name, &end)); |
| return(ROFF_MAX); |
} else |
| for ( ; n; n = n->next) |
req = ohash_find(htab, ohash_qlookup(htab, name)); |
| if (0 == strcmp(n->name, p)) |
return req == NULL ? TOKEN_NONE : req->tok; |
| return((enum rofft)(n - roffs)); |
|
| |
|
| return(ROFF_MAX); |
|
| } |
} |
| |
|
| |
/* --- stack of request blocks -------------------------------------------- */ |
| |
|
| /* |
/* |
| * Pop the current node off of the stack of roff instructions currently |
* Pop the current node off of the stack of roff instructions currently |
| * pending. |
* pending. Return 1 if it is a loop or 0 otherwise. |
| */ |
*/ |
| static void |
static int |
| roffnode_pop(struct roff *r) |
roffnode_pop(struct roff *r) |
| { |
{ |
| struct roffnode *p; |
struct roffnode *p; |
| |
int inloop; |
| |
|
| assert(r->last); |
p = r->last; |
| p = r->last; |
inloop = p->tok == ROFF_while; |
| |
r->last = p->parent; |
| if (ROFF_el == p->tok) |
free(p->name); |
| if (r->rstackpos > -1) |
free(p->end); |
| r->rstackpos--; |
|
| |
|
| ROFF_DEBUG("roff: popping scope\n"); |
|
| r->last = r->last->parent; |
|
| if (p->end) |
|
| free(p->end); |
|
| free(p); |
free(p); |
| |
return inloop; |
| } |
} |
| |
|
| |
|
| /* |
/* |
| * Push a roff node onto the instruction stack. This must later be |
* Push a roff node onto the instruction stack. This must later be |
| * removed with roffnode_pop(). |
* removed with roffnode_pop(). |
| */ |
*/ |
| static void |
static void |
| roffnode_push(struct roff *r, enum rofft tok, int line, int col) |
roffnode_push(struct roff *r, enum roff_tok tok, const char *name, |
| |
int line, int col) |
| { |
{ |
| struct roffnode *p; |
struct roffnode *p; |
| |
|
| p = mandoc_calloc(1, sizeof(struct roffnode)); |
p = mandoc_calloc(1, sizeof(struct roffnode)); |
| p->tok = tok; |
p->tok = tok; |
| |
if (name) |
| |
p->name = mandoc_strdup(name); |
| p->parent = r->last; |
p->parent = r->last; |
| p->line = line; |
p->line = line; |
| p->col = col; |
p->col = col; |
| p->rule = p->parent ? p->parent->rule : ROFFRULE_DENY; |
p->rule = p->parent ? p->parent->rule : 0; |
| |
|
| r->last = p; |
r->last = p; |
| } |
} |
| |
|
| |
/* --- roff parser state data management ---------------------------------- */ |
| |
|
| static void |
static void |
| roff_free1(struct roff *r) |
roff_free1(struct roff *r) |
| { |
{ |
| |
int i; |
| |
|
| |
tbl_free(r->first_tbl); |
| |
r->first_tbl = r->last_tbl = r->tbl = NULL; |
| |
|
| |
eqn_free(r->last_eqn); |
| |
r->last_eqn = r->eqn = NULL; |
| |
|
| |
while (r->mstackpos >= 0) |
| |
roff_userret(r); |
| |
|
| while (r->last) |
while (r->last) |
| roffnode_pop(r); |
roffnode_pop(r); |
| roff_freestr(r); |
|
| } |
|
| |
|
| |
free (r->rstack); |
| |
r->rstack = NULL; |
| |
r->rstacksz = 0; |
| |
r->rstackpos = -1; |
| |
|
| |
roff_freereg(r->regtab); |
| |
r->regtab = NULL; |
| |
|
| |
roff_freestr(r->strtab); |
| |
roff_freestr(r->rentab); |
| |
roff_freestr(r->xmbtab); |
| |
r->strtab = r->rentab = r->xmbtab = NULL; |
| |
|
| |
if (r->xtab) |
| |
for (i = 0; i < 128; i++) |
| |
free(r->xtab[i].p); |
| |
free(r->xtab); |
| |
r->xtab = NULL; |
| |
} |
| |
|
| void |
void |
| roff_reset(struct roff *r) |
roff_reset(struct roff *r) |
| { |
{ |
| |
|
| roff_free1(r); |
roff_free1(r); |
| |
r->options |= MPARSE_COMMENT; |
| |
r->format = r->options & (MPARSE_MDOC | MPARSE_MAN); |
| |
r->control = '\0'; |
| |
r->escape = '\\'; |
| |
roffce_lines = 0; |
| |
roffce_node = NULL; |
| |
roffit_lines = 0; |
| |
roffit_macro = NULL; |
| } |
} |
| |
|
| |
|
| void |
void |
| roff_free(struct roff *r) |
roff_free(struct roff *r) |
| { |
{ |
| |
int i; |
| |
|
| roff_free1(r); |
roff_free1(r); |
| |
for (i = 0; i < r->mstacksz; i++) |
| |
free(r->mstack[i].argv); |
| |
free(r->mstack); |
| |
roffhash_free(r->reqtab); |
| free(r); |
free(r); |
| } |
} |
| |
|
| |
|
| struct roff * |
struct roff * |
| roff_alloc(struct regset *regs, void *data, const mandocmsg msg) |
roff_alloc(int options) |
| { |
{ |
| struct roff *r; |
struct roff *r; |
| |
|
| r = mandoc_calloc(1, sizeof(struct roff)); |
r = mandoc_calloc(1, sizeof(struct roff)); |
| r->regs = regs; |
r->reqtab = roffhash_alloc(0, ROFF_RENAMED); |
| r->msg = msg; |
r->options = options | MPARSE_COMMENT; |
| r->data = data; |
r->format = options & (MPARSE_MDOC | MPARSE_MAN); |
| |
r->mstackpos = -1; |
| r->rstackpos = -1; |
r->rstackpos = -1; |
| |
r->escape = '\\'; |
| roff_hash_init(); |
return r; |
| return(r); |
|
| } |
} |
| |
|
| |
/* --- syntax tree state data management ---------------------------------- */ |
| |
|
| |
static void |
| |
roff_man_free1(struct roff_man *man) |
| |
{ |
| |
if (man->meta.first != NULL) |
| |
roff_node_delete(man, man->meta.first); |
| |
free(man->meta.msec); |
| |
free(man->meta.vol); |
| |
free(man->meta.os); |
| |
free(man->meta.arch); |
| |
free(man->meta.title); |
| |
free(man->meta.name); |
| |
free(man->meta.date); |
| |
free(man->meta.sodest); |
| |
} |
| |
|
| |
void |
| |
roff_state_reset(struct roff_man *man) |
| |
{ |
| |
man->last = man->meta.first; |
| |
man->last_es = NULL; |
| |
man->flags = 0; |
| |
man->lastsec = man->lastnamed = SEC_NONE; |
| |
man->next = ROFF_NEXT_CHILD; |
| |
roff_setreg(man->roff, "nS", 0, '='); |
| |
} |
| |
|
| |
static void |
| |
roff_man_alloc1(struct roff_man *man) |
| |
{ |
| |
memset(&man->meta, 0, sizeof(man->meta)); |
| |
man->meta.first = mandoc_calloc(1, sizeof(*man->meta.first)); |
| |
man->meta.first->type = ROFFT_ROOT; |
| |
man->meta.macroset = MACROSET_NONE; |
| |
roff_state_reset(man); |
| |
} |
| |
|
| |
void |
| |
roff_man_reset(struct roff_man *man) |
| |
{ |
| |
roff_man_free1(man); |
| |
roff_man_alloc1(man); |
| |
} |
| |
|
| |
void |
| |
roff_man_free(struct roff_man *man) |
| |
{ |
| |
roff_man_free1(man); |
| |
free(man->os_r); |
| |
free(man); |
| |
} |
| |
|
| |
struct roff_man * |
| |
roff_man_alloc(struct roff *roff, const char *os_s, int quick) |
| |
{ |
| |
struct roff_man *man; |
| |
|
| |
man = mandoc_calloc(1, sizeof(*man)); |
| |
man->roff = roff; |
| |
man->os_s = os_s; |
| |
man->quick = quick; |
| |
roff_man_alloc1(man); |
| |
roff->man = man; |
| |
return man; |
| |
} |
| |
|
| |
/* --- syntax tree handling ----------------------------------------------- */ |
| |
|
| |
struct roff_node * |
| |
roff_node_alloc(struct roff_man *man, int line, int pos, |
| |
enum roff_type type, int tok) |
| |
{ |
| |
struct roff_node *n; |
| |
|
| |
n = mandoc_calloc(1, sizeof(*n)); |
| |
n->line = line; |
| |
n->pos = pos; |
| |
n->tok = tok; |
| |
n->type = type; |
| |
n->sec = man->lastsec; |
| |
|
| |
if (man->flags & MDOC_SYNOPSIS) |
| |
n->flags |= NODE_SYNPRETTY; |
| |
else |
| |
n->flags &= ~NODE_SYNPRETTY; |
| |
if ((man->flags & (ROFF_NOFILL | ROFF_NONOFILL)) == ROFF_NOFILL) |
| |
n->flags |= NODE_NOFILL; |
| |
else |
| |
n->flags &= ~NODE_NOFILL; |
| |
if (man->flags & MDOC_NEWLINE) |
| |
n->flags |= NODE_LINE; |
| |
man->flags &= ~MDOC_NEWLINE; |
| |
|
| |
return n; |
| |
} |
| |
|
| |
void |
| |
roff_node_append(struct roff_man *man, struct roff_node *n) |
| |
{ |
| |
|
| |
switch (man->next) { |
| |
case ROFF_NEXT_SIBLING: |
| |
if (man->last->next != NULL) { |
| |
n->next = man->last->next; |
| |
man->last->next->prev = n; |
| |
} else |
| |
man->last->parent->last = n; |
| |
man->last->next = n; |
| |
n->prev = man->last; |
| |
n->parent = man->last->parent; |
| |
break; |
| |
case ROFF_NEXT_CHILD: |
| |
if (man->last->child != NULL) { |
| |
n->next = man->last->child; |
| |
man->last->child->prev = n; |
| |
} else |
| |
man->last->last = n; |
| |
man->last->child = n; |
| |
n->parent = man->last; |
| |
break; |
| |
default: |
| |
abort(); |
| |
} |
| |
man->last = n; |
| |
|
| |
switch (n->type) { |
| |
case ROFFT_HEAD: |
| |
n->parent->head = n; |
| |
break; |
| |
case ROFFT_BODY: |
| |
if (n->end != ENDBODY_NOT) |
| |
return; |
| |
n->parent->body = n; |
| |
break; |
| |
case ROFFT_TAIL: |
| |
n->parent->tail = n; |
| |
break; |
| |
default: |
| |
return; |
| |
} |
| |
|
| |
/* |
| |
* Copy over the normalised-data pointer of our parent. Not |
| |
* everybody has one, but copying a null pointer is fine. |
| |
*/ |
| |
|
| |
n->norm = n->parent->norm; |
| |
assert(n->parent->type == ROFFT_BLOCK); |
| |
} |
| |
|
| |
void |
| |
roff_word_alloc(struct roff_man *man, int line, int pos, const char *word) |
| |
{ |
| |
struct roff_node *n; |
| |
|
| |
n = roff_node_alloc(man, line, pos, ROFFT_TEXT, TOKEN_NONE); |
| |
n->string = roff_strdup(man->roff, word); |
| |
roff_node_append(man, n); |
| |
n->flags |= NODE_VALID | NODE_ENDED; |
| |
man->next = ROFF_NEXT_SIBLING; |
| |
} |
| |
|
| |
void |
| |
roff_word_append(struct roff_man *man, const char *word) |
| |
{ |
| |
struct roff_node *n; |
| |
char *addstr, *newstr; |
| |
|
| |
n = man->last; |
| |
addstr = roff_strdup(man->roff, word); |
| |
mandoc_asprintf(&newstr, "%s %s", n->string, addstr); |
| |
free(addstr); |
| |
free(n->string); |
| |
n->string = newstr; |
| |
man->next = ROFF_NEXT_SIBLING; |
| |
} |
| |
|
| |
void |
| |
roff_elem_alloc(struct roff_man *man, int line, int pos, int tok) |
| |
{ |
| |
struct roff_node *n; |
| |
|
| |
n = roff_node_alloc(man, line, pos, ROFFT_ELEM, tok); |
| |
roff_node_append(man, n); |
| |
man->next = ROFF_NEXT_CHILD; |
| |
} |
| |
|
| |
struct roff_node * |
| |
roff_block_alloc(struct roff_man *man, int line, int pos, int tok) |
| |
{ |
| |
struct roff_node *n; |
| |
|
| |
n = roff_node_alloc(man, line, pos, ROFFT_BLOCK, tok); |
| |
roff_node_append(man, n); |
| |
man->next = ROFF_NEXT_CHILD; |
| |
return n; |
| |
} |
| |
|
| |
struct roff_node * |
| |
roff_head_alloc(struct roff_man *man, int line, int pos, int tok) |
| |
{ |
| |
struct roff_node *n; |
| |
|
| |
n = roff_node_alloc(man, line, pos, ROFFT_HEAD, tok); |
| |
roff_node_append(man, n); |
| |
man->next = ROFF_NEXT_CHILD; |
| |
return n; |
| |
} |
| |
|
| |
struct roff_node * |
| |
roff_body_alloc(struct roff_man *man, int line, int pos, int tok) |
| |
{ |
| |
struct roff_node *n; |
| |
|
| |
n = roff_node_alloc(man, line, pos, ROFFT_BODY, tok); |
| |
roff_node_append(man, n); |
| |
man->next = ROFF_NEXT_CHILD; |
| |
return n; |
| |
} |
| |
|
| |
static void |
| |
roff_addtbl(struct roff_man *man, int line, struct tbl_node *tbl) |
| |
{ |
| |
struct roff_node *n; |
| |
struct tbl_span *span; |
| |
|
| |
if (man->meta.macroset == MACROSET_MAN) |
| |
man_breakscope(man, ROFF_TS); |
| |
while ((span = tbl_span(tbl)) != NULL) { |
| |
n = roff_node_alloc(man, line, 0, ROFFT_TBL, TOKEN_NONE); |
| |
n->span = span; |
| |
roff_node_append(man, n); |
| |
n->flags |= NODE_VALID | NODE_ENDED; |
| |
man->next = ROFF_NEXT_SIBLING; |
| |
} |
| |
} |
| |
|
| |
void |
| |
roff_node_unlink(struct roff_man *man, struct roff_node *n) |
| |
{ |
| |
|
| |
/* Adjust siblings. */ |
| |
|
| |
if (n->prev) |
| |
n->prev->next = n->next; |
| |
if (n->next) |
| |
n->next->prev = n->prev; |
| |
|
| |
/* Adjust parent. */ |
| |
|
| |
if (n->parent != NULL) { |
| |
if (n->parent->child == n) |
| |
n->parent->child = n->next; |
| |
if (n->parent->last == n) |
| |
n->parent->last = n->prev; |
| |
} |
| |
|
| |
/* Adjust parse point. */ |
| |
|
| |
if (man == NULL) |
| |
return; |
| |
if (man->last == n) { |
| |
if (n->prev == NULL) { |
| |
man->last = n->parent; |
| |
man->next = ROFF_NEXT_CHILD; |
| |
} else { |
| |
man->last = n->prev; |
| |
man->next = ROFF_NEXT_SIBLING; |
| |
} |
| |
} |
| |
if (man->meta.first == n) |
| |
man->meta.first = NULL; |
| |
} |
| |
|
| |
void |
| |
roff_node_relink(struct roff_man *man, struct roff_node *n) |
| |
{ |
| |
roff_node_unlink(man, n); |
| |
n->prev = n->next = NULL; |
| |
roff_node_append(man, n); |
| |
} |
| |
|
| |
void |
| |
roff_node_free(struct roff_node *n) |
| |
{ |
| |
|
| |
if (n->args != NULL) |
| |
mdoc_argv_free(n->args); |
| |
if (n->type == ROFFT_BLOCK || n->type == ROFFT_ELEM) |
| |
free(n->norm); |
| |
eqn_box_free(n->eqn); |
| |
free(n->string); |
| |
free(n->tag); |
| |
free(n); |
| |
} |
| |
|
| |
void |
| |
roff_node_delete(struct roff_man *man, struct roff_node *n) |
| |
{ |
| |
|
| |
while (n->child != NULL) |
| |
roff_node_delete(man, n->child); |
| |
roff_node_unlink(man, n); |
| |
roff_node_free(n); |
| |
} |
| |
|
| |
int |
| |
roff_node_transparent(struct roff_node *n) |
| |
{ |
| |
if (n == NULL) |
| |
return 0; |
| |
if (n->type == ROFFT_COMMENT || n->flags & NODE_NOPRT) |
| |
return 1; |
| |
return roff_tok_transparent(n->tok); |
| |
} |
| |
|
| |
int |
| |
roff_tok_transparent(enum roff_tok tok) |
| |
{ |
| |
switch (tok) { |
| |
case ROFF_ft: |
| |
case ROFF_ll: |
| |
case ROFF_mc: |
| |
case ROFF_po: |
| |
case ROFF_ta: |
| |
case MDOC_Db: |
| |
case MDOC_Es: |
| |
case MDOC_Sm: |
| |
case MDOC_Tg: |
| |
case MAN_DT: |
| |
case MAN_UC: |
| |
case MAN_PD: |
| |
case MAN_AT: |
| |
return 1; |
| |
default: |
| |
return 0; |
| |
} |
| |
} |
| |
|
| |
struct roff_node * |
| |
roff_node_child(struct roff_node *n) |
| |
{ |
| |
for (n = n->child; roff_node_transparent(n); n = n->next) |
| |
continue; |
| |
return n; |
| |
} |
| |
|
| |
struct roff_node * |
| |
roff_node_prev(struct roff_node *n) |
| |
{ |
| |
do { |
| |
n = n->prev; |
| |
} while (roff_node_transparent(n)); |
| |
return n; |
| |
} |
| |
|
| |
struct roff_node * |
| |
roff_node_next(struct roff_node *n) |
| |
{ |
| |
do { |
| |
n = n->next; |
| |
} while (roff_node_transparent(n)); |
| |
return n; |
| |
} |
| |
|
| |
void |
| |
deroff(char **dest, const struct roff_node *n) |
| |
{ |
| |
char *cp; |
| |
size_t sz; |
| |
|
| |
if (n->string == NULL) { |
| |
for (n = n->child; n != NULL; n = n->next) |
| |
deroff(dest, n); |
| |
return; |
| |
} |
| |
|
| |
/* Skip leading whitespace. */ |
| |
|
| |
for (cp = n->string; *cp != '\0'; cp++) { |
| |
if (cp[0] == '\\' && cp[1] != '\0' && |
| |
strchr(" %&0^|~", cp[1]) != NULL) |
| |
cp++; |
| |
else if ( ! isspace((unsigned char)*cp)) |
| |
break; |
| |
} |
| |
|
| |
/* Skip trailing backslash. */ |
| |
|
| |
sz = strlen(cp); |
| |
if (sz > 0 && cp[sz - 1] == '\\') |
| |
sz--; |
| |
|
| |
/* Skip trailing whitespace. */ |
| |
|
| |
for (; sz; sz--) |
| |
if ( ! isspace((unsigned char)cp[sz-1])) |
| |
break; |
| |
|
| |
/* Skip empty strings. */ |
| |
|
| |
if (sz == 0) |
| |
return; |
| |
|
| |
if (*dest == NULL) { |
| |
*dest = mandoc_strndup(cp, sz); |
| |
return; |
| |
} |
| |
|
| |
mandoc_asprintf(&cp, "%s %*s", *dest, (int)sz, cp); |
| |
free(*dest); |
| |
*dest = cp; |
| |
} |
| |
|
| |
/* --- main functions of the roff parser ---------------------------------- */ |
| |
|
| /* |
/* |
| * Pre-filter each and every line for reserved words (one beginning with |
* In the current line, expand escape sequences that produce parsable |
| * `\*', e.g., `\*(ab'). These must be handled before the actual line |
* input text. Also check the syntax of the remaining escape sequences, |
| * is processed. |
* which typically produce output glyphs or change formatter state. |
| */ |
*/ |
| static int |
static int |
| roff_res(struct roff *r, char **bufp, size_t *szp, int pos) |
roff_expand(struct roff *r, struct buf *buf, int ln, int pos, char newesc) |
| { |
{ |
| const char *cp, *cpp, *st, *res; |
struct mctx *ctx; /* current macro call context */ |
| int i, maxl; |
char ubuf[24]; /* buffer to print the number */ |
| size_t nsz; |
struct roff_node *n; /* used for header comments */ |
| char *n; |
const char *start; /* start of the string to process */ |
| |
char *stesc; /* start of an escape sequence ('\\') */ |
| |
const char *esct; /* type of esccape sequence */ |
| |
char *ep; /* end of comment string */ |
| |
const char *stnam; /* start of the name, after "[(*" */ |
| |
const char *cp; /* end of the name, e.g. before ']' */ |
| |
const char *res; /* the string to be substituted */ |
| |
char *nbuf; /* new buffer to copy buf->buf to */ |
| |
size_t maxl; /* expected length of the escape name */ |
| |
size_t naml; /* actual length of the escape name */ |
| |
size_t asz; /* length of the replacement */ |
| |
size_t rsz; /* length of the rest of the string */ |
| |
int inaml; /* length returned from mandoc_escape() */ |
| |
int expand_count; /* to avoid infinite loops */ |
| |
int npos; /* position in numeric expression */ |
| |
int arg_complete; /* argument not interrupted by eol */ |
| |
int quote_args; /* true for \\$@, false for \\$* */ |
| |
int done; /* no more input available */ |
| |
int deftype; /* type of definition to paste */ |
| |
int rcsid; /* kind of RCS id seen */ |
| |
enum mandocerr err; /* for escape sequence problems */ |
| |
char sign; /* increment number register */ |
| |
char term; /* character terminating the escape */ |
| |
|
| /* LINTED */ |
/* Search forward for comments. */ |
| for (cp = &(*bufp)[pos]; (cpp = strstr(cp, "\\*")); cp++) { |
|
| cp = cpp + 2; |
done = 0; |
| switch (*cp) { |
start = buf->buf + pos; |
| case ('('): |
for (stesc = buf->buf + pos; *stesc != '\0'; stesc++) { |
| |
if (stesc[0] != newesc || stesc[1] == '\0') |
| |
continue; |
| |
stesc++; |
| |
if (*stesc != '"' && *stesc != '#') |
| |
continue; |
| |
|
| |
/* Comment found, look for RCS id. */ |
| |
|
| |
rcsid = 0; |
| |
if ((cp = strstr(stesc, "$" "OpenBSD")) != NULL) { |
| |
rcsid = 1 << MANDOC_OS_OPENBSD; |
| |
cp += 8; |
| |
} else if ((cp = strstr(stesc, "$" "NetBSD")) != NULL) { |
| |
rcsid = 1 << MANDOC_OS_NETBSD; |
| |
cp += 7; |
| |
} |
| |
if (cp != NULL && |
| |
isalnum((unsigned char)*cp) == 0 && |
| |
strchr(cp, '$') != NULL) { |
| |
if (r->man->meta.rcsids & rcsid) |
| |
mandoc_msg(MANDOCERR_RCS_REP, ln, |
| |
(int)(stesc - buf->buf) + 1, |
| |
"%s", stesc + 1); |
| |
r->man->meta.rcsids |= rcsid; |
| |
} |
| |
|
| |
/* Handle trailing whitespace. */ |
| |
|
| |
ep = strchr(stesc--, '\0') - 1; |
| |
if (*ep == '\n') { |
| |
done = 1; |
| |
ep--; |
| |
} |
| |
if (*ep == ' ' || *ep == '\t') |
| |
mandoc_msg(MANDOCERR_SPACE_EOL, |
| |
ln, (int)(ep - buf->buf), NULL); |
| |
|
| |
/* |
| |
* Save comments preceding the title macro |
| |
* in the syntax tree. |
| |
*/ |
| |
|
| |
if (newesc != ASCII_ESC && r->options & MPARSE_COMMENT) { |
| |
while (*ep == ' ' || *ep == '\t') |
| |
ep--; |
| |
ep[1] = '\0'; |
| |
n = roff_node_alloc(r->man, |
| |
ln, stesc + 1 - buf->buf, |
| |
ROFFT_COMMENT, TOKEN_NONE); |
| |
n->string = mandoc_strdup(stesc + 2); |
| |
roff_node_append(r->man, n); |
| |
n->flags |= NODE_VALID | NODE_ENDED; |
| |
r->man->next = ROFF_NEXT_SIBLING; |
| |
} |
| |
|
| |
/* Line continuation with comment. */ |
| |
|
| |
if (stesc[1] == '#') { |
| |
*stesc = '\0'; |
| |
return ROFF_IGN | ROFF_APPEND; |
| |
} |
| |
|
| |
/* Discard normal comments. */ |
| |
|
| |
while (stesc > start && stesc[-1] == ' ' && |
| |
(stesc == start + 1 || stesc[-2] != '\\')) |
| |
stesc--; |
| |
*stesc = '\0'; |
| |
break; |
| |
} |
| |
if (stesc == start) |
| |
return ROFF_CONT; |
| |
stesc--; |
| |
|
| |
/* Notice the end of the input. */ |
| |
|
| |
if (*stesc == '\n') { |
| |
*stesc-- = '\0'; |
| |
done = 1; |
| |
} |
| |
|
| |
expand_count = 0; |
| |
while (stesc >= start) { |
| |
if (*stesc != newesc) { |
| |
|
| |
/* |
| |
* If we have a non-standard escape character, |
| |
* escape literal backslashes because all |
| |
* processing in subsequent functions uses |
| |
* the standard escaping rules. |
| |
*/ |
| |
|
| |
if (newesc != ASCII_ESC && *stesc == '\\') { |
| |
*stesc = '\0'; |
| |
buf->sz = mandoc_asprintf(&nbuf, "%s\\e%s", |
| |
buf->buf, stesc + 1) + 1; |
| |
start = nbuf + pos; |
| |
stesc = nbuf + (stesc - buf->buf); |
| |
free(buf->buf); |
| |
buf->buf = nbuf; |
| |
} |
| |
|
| |
/* Search backwards for the next escape. */ |
| |
|
| |
stesc--; |
| |
continue; |
| |
} |
| |
|
| |
/* If it is escaped, skip it. */ |
| |
|
| |
for (cp = stesc - 1; cp >= start; cp--) |
| |
if (*cp != r->escape) |
| |
break; |
| |
|
| |
if ((stesc - cp) % 2 == 0) { |
| |
while (stesc > cp) |
| |
*stesc-- = '\\'; |
| |
continue; |
| |
} else if (stesc[1] != '\0') { |
| |
*stesc = '\\'; |
| |
} else { |
| |
*stesc-- = '\0'; |
| |
if (done) |
| |
continue; |
| |
else |
| |
return ROFF_IGN | ROFF_APPEND; |
| |
} |
| |
|
| |
/* Decide whether to expand or to check only. */ |
| |
|
| |
term = '\0'; |
| |
cp = stesc + 1; |
| |
while (*cp == 'E') |
| cp++; |
cp++; |
| maxl = 2; |
esct = cp; |
| |
switch (*esct) { |
| |
case '*': |
| |
case '$': |
| |
res = NULL; |
| break; |
break; |
| case ('['): |
case 'B': |
| cp++; |
case 'w': |
| maxl = 0; |
term = cp[1]; |
| |
/* FALLTHROUGH */ |
| |
case 'n': |
| |
sign = cp[1]; |
| |
if (sign == '+' || sign == '-') |
| |
cp++; |
| |
res = ubuf; |
| break; |
break; |
| default: |
default: |
| maxl = 1; |
err = MANDOCERR_OK; |
| break; |
switch(mandoc_escape(&cp, &stnam, &inaml)) { |
| |
case ESCAPE_SPECIAL: |
| |
if (mchars_spec2cp(stnam, inaml) >= 0) |
| |
break; |
| |
/* FALLTHROUGH */ |
| |
case ESCAPE_ERROR: |
| |
err = MANDOCERR_ESC_BAD; |
| |
break; |
| |
case ESCAPE_UNDEF: |
| |
err = MANDOCERR_ESC_UNDEF; |
| |
break; |
| |
case ESCAPE_UNSUPP: |
| |
err = MANDOCERR_ESC_UNSUPP; |
| |
break; |
| |
default: |
| |
break; |
| |
} |
| |
if (err != MANDOCERR_OK) |
| |
mandoc_msg(err, ln, (int)(stesc - buf->buf), |
| |
"%.*s", (int)(cp - stesc), stesc); |
| |
stesc--; |
| |
continue; |
| } |
} |
| |
|
| st = cp; |
if (EXPAND_LIMIT < ++expand_count) { |
| |
mandoc_msg(MANDOCERR_ROFFLOOP, |
| |
ln, (int)(stesc - buf->buf), NULL); |
| |
return ROFF_IGN; |
| |
} |
| |
|
| for (i = 0; 0 == maxl || i < maxl; i++, cp++) { |
/* |
| if ('\0' == *cp) |
* The third character decides the length |
| return(1); /* Error. */ |
* of the name of the string or register. |
| if (0 == maxl && ']' == *cp) |
* Save a pointer to the name. |
| |
*/ |
| |
|
| |
if (term == '\0') { |
| |
switch (*++cp) { |
| |
case '\0': |
| |
maxl = 0; |
| break; |
break; |
| |
case '(': |
| |
cp++; |
| |
maxl = 2; |
| |
break; |
| |
case '[': |
| |
cp++; |
| |
term = ']'; |
| |
maxl = 0; |
| |
break; |
| |
default: |
| |
maxl = 1; |
| |
break; |
| |
} |
| |
} else { |
| |
cp += 2; |
| |
maxl = 0; |
| } |
} |
| |
stnam = cp; |
| |
|
| res = roff_getstrn(r, st, (size_t)i); |
/* Advance to the end of the name. */ |
| |
|
| if (NULL == res) { |
naml = 0; |
| cp -= maxl ? 1 : 0; |
arg_complete = 1; |
| |
while (maxl == 0 || naml < maxl) { |
| |
if (*cp == '\0') { |
| |
mandoc_msg(MANDOCERR_ESC_BAD, ln, |
| |
(int)(stesc - buf->buf), "%s", stesc); |
| |
arg_complete = 0; |
| |
break; |
| |
} |
| |
if (maxl == 0 && *cp == term) { |
| |
cp++; |
| |
break; |
| |
} |
| |
if (*cp++ != '\\' || *esct != 'w') { |
| |
naml++; |
| |
continue; |
| |
} |
| |
switch (mandoc_escape(&cp, NULL, NULL)) { |
| |
case ESCAPE_SPECIAL: |
| |
case ESCAPE_UNICODE: |
| |
case ESCAPE_NUMBERED: |
| |
case ESCAPE_UNDEF: |
| |
case ESCAPE_OVERSTRIKE: |
| |
naml++; |
| |
break; |
| |
default: |
| |
break; |
| |
} |
| |
} |
| |
|
| |
/* |
| |
* Retrieve the replacement string; if it is |
| |
* undefined, resume searching for escapes. |
| |
*/ |
| |
|
| |
switch (*esct) { |
| |
case '*': |
| |
if (arg_complete) { |
| |
deftype = ROFFDEF_USER | ROFFDEF_PRE; |
| |
res = roff_getstrn(r, stnam, naml, &deftype); |
| |
|
| |
/* |
| |
* If not overriden, let \*(.T |
| |
* through to the formatters. |
| |
*/ |
| |
|
| |
if (res == NULL && naml == 2 && |
| |
stnam[0] == '.' && stnam[1] == 'T') { |
| |
roff_setstrn(&r->strtab, |
| |
".T", 2, NULL, 0, 0); |
| |
stesc--; |
| |
continue; |
| |
} |
| |
} |
| |
break; |
| |
case '$': |
| |
if (r->mstackpos < 0) { |
| |
mandoc_msg(MANDOCERR_ARG_UNDEF, ln, |
| |
(int)(stesc - buf->buf), "%.3s", stesc); |
| |
break; |
| |
} |
| |
ctx = r->mstack + r->mstackpos; |
| |
npos = esct[1] - '1'; |
| |
if (npos >= 0 && npos <= 8) { |
| |
res = npos < ctx->argc ? |
| |
ctx->argv[npos] : ""; |
| |
break; |
| |
} |
| |
if (esct[1] == '*') |
| |
quote_args = 0; |
| |
else if (esct[1] == '@') |
| |
quote_args = 1; |
| |
else { |
| |
mandoc_msg(MANDOCERR_ARG_NONUM, ln, |
| |
(int)(stesc - buf->buf), "%.3s", stesc); |
| |
break; |
| |
} |
| |
asz = 0; |
| |
for (npos = 0; npos < ctx->argc; npos++) { |
| |
if (npos) |
| |
asz++; /* blank */ |
| |
if (quote_args) |
| |
asz += 2; /* quotes */ |
| |
asz += strlen(ctx->argv[npos]); |
| |
} |
| |
if (asz != 3) { |
| |
rsz = buf->sz - (stesc - buf->buf) - 3; |
| |
if (asz < 3) |
| |
memmove(stesc + asz, stesc + 3, rsz); |
| |
buf->sz += asz - 3; |
| |
nbuf = mandoc_realloc(buf->buf, buf->sz); |
| |
start = nbuf + pos; |
| |
stesc = nbuf + (stesc - buf->buf); |
| |
buf->buf = nbuf; |
| |
if (asz > 3) |
| |
memmove(stesc + asz, stesc + 3, rsz); |
| |
} |
| |
for (npos = 0; npos < ctx->argc; npos++) { |
| |
if (npos) |
| |
*stesc++ = ' '; |
| |
if (quote_args) |
| |
*stesc++ = '"'; |
| |
cp = ctx->argv[npos]; |
| |
while (*cp != '\0') |
| |
*stesc++ = *cp++; |
| |
if (quote_args) |
| |
*stesc++ = '"'; |
| |
} |
| continue; |
continue; |
| |
case 'B': |
| |
npos = 0; |
| |
ubuf[0] = arg_complete && |
| |
roff_evalnum(r, ln, stnam, &npos, |
| |
NULL, ROFFNUM_SCALE) && |
| |
stnam + npos + 1 == cp ? '1' : '0'; |
| |
ubuf[1] = '\0'; |
| |
break; |
| |
case 'n': |
| |
if (arg_complete) |
| |
(void)snprintf(ubuf, sizeof(ubuf), "%d", |
| |
roff_getregn(r, stnam, naml, sign)); |
| |
else |
| |
ubuf[0] = '\0'; |
| |
break; |
| |
case 'w': |
| |
/* use even incomplete args */ |
| |
(void)snprintf(ubuf, sizeof(ubuf), "%d", |
| |
24 * (int)naml); |
| |
break; |
| } |
} |
| |
|
| ROFF_DEBUG("roff: splicing reserved: [%.*s]\n", i, st); |
if (res == NULL) { |
| |
if (*esct == '*') |
| |
mandoc_msg(MANDOCERR_STR_UNDEF, |
| |
ln, (int)(stesc - buf->buf), |
| |
"%.*s", (int)naml, stnam); |
| |
res = ""; |
| |
} else if (buf->sz + strlen(res) > SHRT_MAX) { |
| |
mandoc_msg(MANDOCERR_ROFFLOOP, |
| |
ln, (int)(stesc - buf->buf), NULL); |
| |
return ROFF_IGN; |
| |
} |
| |
|
| nsz = *szp + strlen(res) + 1; |
/* Replace the escape sequence by the string. */ |
| n = mandoc_malloc(nsz); |
|
| |
|
| *n = '\0'; |
*stesc = '\0'; |
| |
buf->sz = mandoc_asprintf(&nbuf, "%s%s%s", |
| |
buf->buf, res, cp) + 1; |
| |
|
| strlcat(n, *bufp, (size_t)(cpp - *bufp + 1)); |
/* Prepare for the next replacement. */ |
| strlcat(n, res, nsz); |
|
| strlcat(n, cp + (maxl ? 0 : 1), nsz); |
|
| |
|
| free(*bufp); |
start = nbuf + pos; |
| |
stesc = nbuf + (stesc - buf->buf) + strlen(res); |
| |
free(buf->buf); |
| |
buf->buf = nbuf; |
| |
} |
| |
return ROFF_CONT; |
| |
} |
| |
|
| *bufp = n; |
/* |
| *szp = nsz; |
* Parse a quoted or unquoted roff-style request or macro argument. |
| return(0); |
* Return a pointer to the parsed argument, which is either the original |
| |
* pointer or advanced by one byte in case the argument is quoted. |
| |
* NUL-terminate the argument in place. |
| |
* Collapse pairs of quotes inside quoted arguments. |
| |
* Advance the argument pointer to the next argument, |
| |
* or to the NUL byte terminating the argument line. |
| |
*/ |
| |
char * |
| |
roff_getarg(struct roff *r, char **cpp, int ln, int *pos) |
| |
{ |
| |
struct buf buf; |
| |
char *cp, *start; |
| |
int newesc, pairs, quoted, white; |
| |
|
| |
/* Quoting can only start with a new word. */ |
| |
start = *cpp; |
| |
quoted = 0; |
| |
if ('"' == *start) { |
| |
quoted = 1; |
| |
start++; |
| } |
} |
| |
|
| return(1); |
newesc = pairs = white = 0; |
| |
for (cp = start; '\0' != *cp; cp++) { |
| |
|
| |
/* |
| |
* Move the following text left |
| |
* after quoted quotes and after "\\" and "\t". |
| |
*/ |
| |
if (pairs) |
| |
cp[-pairs] = cp[0]; |
| |
|
| |
if ('\\' == cp[0]) { |
| |
/* |
| |
* In copy mode, translate double to single |
| |
* backslashes and backslash-t to literal tabs. |
| |
*/ |
| |
switch (cp[1]) { |
| |
case 'a': |
| |
case 't': |
| |
cp[-pairs] = '\t'; |
| |
pairs++; |
| |
cp++; |
| |
break; |
| |
case '\\': |
| |
newesc = 1; |
| |
cp[-pairs] = ASCII_ESC; |
| |
pairs++; |
| |
cp++; |
| |
break; |
| |
case ' ': |
| |
/* Skip escaped blanks. */ |
| |
if (0 == quoted) |
| |
cp++; |
| |
break; |
| |
default: |
| |
break; |
| |
} |
| |
} else if (0 == quoted) { |
| |
if (' ' == cp[0]) { |
| |
/* Unescaped blanks end unquoted args. */ |
| |
white = 1; |
| |
break; |
| |
} |
| |
} else if ('"' == cp[0]) { |
| |
if ('"' == cp[1]) { |
| |
/* Quoted quotes collapse. */ |
| |
pairs++; |
| |
cp++; |
| |
} else { |
| |
/* Unquoted quotes end quoted args. */ |
| |
quoted = 2; |
| |
break; |
| |
} |
| |
} |
| |
} |
| |
|
| |
/* Quoted argument without a closing quote. */ |
| |
if (1 == quoted) |
| |
mandoc_msg(MANDOCERR_ARG_QUOTE, ln, *pos, NULL); |
| |
|
| |
/* NUL-terminate this argument and move to the next one. */ |
| |
if (pairs) |
| |
cp[-pairs] = '\0'; |
| |
if ('\0' != *cp) { |
| |
*cp++ = '\0'; |
| |
while (' ' == *cp) |
| |
cp++; |
| |
} |
| |
*pos += (int)(cp - start) + (quoted ? 1 : 0); |
| |
*cpp = cp; |
| |
|
| |
if ('\0' == *cp && (white || ' ' == cp[-1])) |
| |
mandoc_msg(MANDOCERR_SPACE_EOL, ln, *pos, NULL); |
| |
|
| |
start = mandoc_strdup(start); |
| |
if (newesc == 0) |
| |
return start; |
| |
|
| |
buf.buf = start; |
| |
buf.sz = strlen(start) + 1; |
| |
buf.next = NULL; |
| |
if (roff_expand(r, &buf, ln, 0, ASCII_ESC) & ROFF_IGN) { |
| |
free(buf.buf); |
| |
buf.buf = mandoc_strdup(""); |
| |
} |
| |
return buf.buf; |
| } |
} |
| |
|
| |
|
| enum rofferr |
/* |
| roff_parseln(struct roff *r, int ln, char **bufp, |
* Process text streams. |
| size_t *szp, int pos, int *offs) |
*/ |
| |
static int |
| |
roff_parsetext(struct roff *r, struct buf *buf, int pos, int *offs) |
| { |
{ |
| enum rofft t; |
size_t sz; |
| int ppos; |
const char *start; |
| |
char *p; |
| |
int isz; |
| |
enum mandoc_esc esc; |
| |
|
| /* |
/* Spring the input line trap. */ |
| * Run the reserved-word filter only if we have some reserved |
|
| * words to fill in. |
|
| */ |
|
| |
|
| if (r->first_string && ! roff_res(r, bufp, szp, pos)) |
if (roffit_lines == 1) { |
| return(ROFF_RERUN); |
isz = mandoc_asprintf(&p, "%s\n.%s", buf->buf, roffit_macro); |
| |
free(buf->buf); |
| |
buf->buf = p; |
| |
buf->sz = isz + 1; |
| |
*offs = 0; |
| |
free(roffit_macro); |
| |
roffit_lines = 0; |
| |
return ROFF_REPARSE; |
| |
} else if (roffit_lines > 1) |
| |
--roffit_lines; |
| |
|
| |
if (roffce_node != NULL && buf->buf[pos] != '\0') { |
| |
if (roffce_lines < 1) { |
| |
r->man->last = roffce_node; |
| |
r->man->next = ROFF_NEXT_SIBLING; |
| |
roffce_lines = 0; |
| |
roffce_node = NULL; |
| |
} else |
| |
roffce_lines--; |
| |
} |
| |
|
| |
/* Convert all breakable hyphens into ASCII_HYPH. */ |
| |
|
| |
start = p = buf->buf + pos; |
| |
|
| |
while (*p != '\0') { |
| |
sz = strcspn(p, "-\\"); |
| |
p += sz; |
| |
|
| |
if (*p == '\0') |
| |
break; |
| |
|
| |
if (*p == '\\') { |
| |
/* Skip over escapes. */ |
| |
p++; |
| |
esc = mandoc_escape((const char **)&p, NULL, NULL); |
| |
if (esc == ESCAPE_ERROR) |
| |
break; |
| |
while (*p == '-') |
| |
p++; |
| |
continue; |
| |
} else if (p == start) { |
| |
p++; |
| |
continue; |
| |
} |
| |
|
| |
if (isalpha((unsigned char)p[-1]) && |
| |
isalpha((unsigned char)p[1])) |
| |
*p = ASCII_HYPH; |
| |
p++; |
| |
} |
| |
return ROFF_CONT; |
| |
} |
| |
|
| |
int |
| |
roff_parseln(struct roff *r, int ln, struct buf *buf, int *offs, size_t len) |
| |
{ |
| |
enum roff_tok t; |
| |
int e; |
| |
int pos; /* parse point */ |
| |
int spos; /* saved parse point for messages */ |
| |
int ppos; /* original offset in buf->buf */ |
| |
int ctl; /* macro line (boolean) */ |
| |
|
| |
ppos = pos = *offs; |
| |
|
| |
if (len > 80 && r->tbl == NULL && r->eqn == NULL && |
| |
(r->man->flags & ROFF_NOFILL) == 0 && |
| |
strchr(" .\\", buf->buf[pos]) == NULL && |
| |
buf->buf[pos] != r->control && |
| |
strcspn(buf->buf, " ") < 80) |
| |
mandoc_msg(MANDOCERR_TEXT_LONG, ln, (int)len - 1, |
| |
"%.20s...", buf->buf + pos); |
| |
|
| |
/* Handle in-line equation delimiters. */ |
| |
|
| |
if (r->tbl == NULL && |
| |
r->last_eqn != NULL && r->last_eqn->delim && |
| |
(r->eqn == NULL || r->eqn_inline)) { |
| |
e = roff_eqndelim(r, buf, pos); |
| |
if (e == ROFF_REPARSE) |
| |
return e; |
| |
assert(e == ROFF_CONT); |
| |
} |
| |
|
| |
/* Expand some escape sequences. */ |
| |
|
| |
e = roff_expand(r, buf, ln, pos, r->escape); |
| |
if ((e & ROFF_MASK) == ROFF_IGN) |
| |
return e; |
| |
assert(e == ROFF_CONT); |
| |
|
| |
ctl = roff_getcontrol(r, buf->buf, &pos); |
| |
|
| /* |
/* |
| * First, if a scope is open and we're not a macro, pass the |
* First, if a scope is open and we're not a macro, pass the |
| * text through the macro's filter. If a scope isn't open and |
* text through the macro's filter. |
| * we're not a macro, just let it through. |
* Equations process all content themselves. |
| |
* Tables process almost all content themselves, but we want |
| |
* to warn about macros before passing it there. |
| */ |
*/ |
| |
|
| if (r->last && ! ROFF_CTL((*bufp)[pos])) { |
if (r->last != NULL && ! ctl) { |
| t = r->last->tok; |
t = r->last->tok; |
| assert(roffs[t].text); |
e = (*roffs[t].text)(r, t, buf, ln, pos, pos, offs); |
| ROFF_DEBUG("roff: intercept scoped text: %s, [%s]\n", |
if ((e & ROFF_MASK) == ROFF_IGN) |
| roffs[t].name, &(*bufp)[pos]); |
return e; |
| return((*roffs[t].text) |
e &= ~ROFF_MASK; |
| (r, t, bufp, szp, |
} else |
| ln, pos, pos, offs)); |
e = ROFF_IGN; |
| } else if ( ! ROFF_CTL((*bufp)[pos])) |
if (r->eqn != NULL && strncmp(buf->buf + ppos, ".EN", 3)) { |
| return(ROFF_CONT); |
eqn_read(r->eqn, buf->buf + ppos); |
| |
return e; |
| |
} |
| |
if (r->tbl != NULL && (ctl == 0 || buf->buf[pos] == '\0')) { |
| |
tbl_read(r->tbl, ln, buf->buf, ppos); |
| |
roff_addtbl(r->man, ln, r->tbl); |
| |
return e; |
| |
} |
| |
if ( ! ctl) { |
| |
r->options &= ~MPARSE_COMMENT; |
| |
return roff_parsetext(r, buf, pos, offs) | e; |
| |
} |
| |
|
| |
/* Skip empty request lines. */ |
| |
|
| |
if (buf->buf[pos] == '"') { |
| |
mandoc_msg(MANDOCERR_COMMENT_BAD, ln, pos, NULL); |
| |
return ROFF_IGN; |
| |
} else if (buf->buf[pos] == '\0') |
| |
return ROFF_IGN; |
| |
|
| /* |
/* |
| * If a scope is open, go to the child handler for that macro, |
* If a scope is open, go to the child handler for that macro, |
| * as it may want to preprocess before doing anything with it. |
* as it may want to preprocess before doing anything with it. |
| |
* Don't do so if an equation is open. |
| */ |
*/ |
| |
|
| if (r->last) { |
if (r->last) { |
| t = r->last->tok; |
t = r->last->tok; |
| assert(roffs[t].sub); |
return (*roffs[t].sub)(r, t, buf, ln, ppos, pos, offs); |
| ROFF_DEBUG("roff: intercept scoped context: %s, [%s]\n", |
|
| roffs[t].name, &(*bufp)[pos]); |
|
| return((*roffs[t].sub) |
|
| (r, t, bufp, szp, |
|
| ln, pos, pos, offs)); |
|
| } |
} |
| |
|
| |
/* No scope is open. This is a new request or macro. */ |
| |
|
| |
r->options &= ~MPARSE_COMMENT; |
| |
spos = pos; |
| |
t = roff_parse(r, buf->buf, &pos, ln, ppos); |
| |
|
| |
/* Tables ignore most macros. */ |
| |
|
| |
if (r->tbl != NULL && (t == TOKEN_NONE || t == ROFF_TS || |
| |
t == ROFF_br || t == ROFF_ce || t == ROFF_rj || t == ROFF_sp)) { |
| |
mandoc_msg(MANDOCERR_TBLMACRO, |
| |
ln, pos, "%s", buf->buf + spos); |
| |
if (t != TOKEN_NONE) |
| |
return ROFF_IGN; |
| |
while (buf->buf[pos] != '\0' && buf->buf[pos] != ' ') |
| |
pos++; |
| |
while (buf->buf[pos] == ' ') |
| |
pos++; |
| |
tbl_read(r->tbl, ln, buf->buf, pos); |
| |
roff_addtbl(r->man, ln, r->tbl); |
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
/* For now, let high level macros abort .ce mode. */ |
| |
|
| |
if (ctl && roffce_node != NULL && |
| |
(t == TOKEN_NONE || t == ROFF_Dd || t == ROFF_EQ || |
| |
t == ROFF_TH || t == ROFF_TS)) { |
| |
r->man->last = roffce_node; |
| |
r->man->next = ROFF_NEXT_SIBLING; |
| |
roffce_lines = 0; |
| |
roffce_node = NULL; |
| |
} |
| |
|
| /* |
/* |
| * Lastly, as we've no scope open, try to look up and execute |
* This is neither a roff request nor a user-defined macro. |
| * the new macro. If no macro is found, simply return and let |
* Let the standard macro set parsers handle it. |
| * the compilers handle it. |
|
| */ |
*/ |
| |
|
| ppos = pos; |
if (t == TOKEN_NONE) |
| if (ROFF_MAX == (t = roff_parse(*bufp, &pos))) |
return ROFF_CONT; |
| return(ROFF_CONT); |
|
| |
|
| ROFF_DEBUG("roff: intercept new-scope: %s, [%s]\n", |
/* Execute a roff request or a user defined macro. */ |
| roffs[t].name, &(*bufp)[pos]); |
|
| assert(roffs[t].proc); |
return (*roffs[t].proc)(r, t, buf, ln, spos, pos, offs); |
| return((*roffs[t].proc) |
|
| (r, t, bufp, szp, |
|
| ln, ppos, pos, offs)); |
|
| } |
} |
| |
|
| |
/* |
| |
* Internal interface function to tell the roff parser that execution |
| |
* of the current macro ended. This is required because macro |
| |
* definitions usually do not end with a .return request. |
| |
*/ |
| |
void |
| |
roff_userret(struct roff *r) |
| |
{ |
| |
struct mctx *ctx; |
| |
int i; |
| |
|
| int |
assert(r->mstackpos >= 0); |
| |
ctx = r->mstack + r->mstackpos; |
| |
for (i = 0; i < ctx->argc; i++) |
| |
free(ctx->argv[i]); |
| |
ctx->argc = 0; |
| |
r->mstackpos--; |
| |
} |
| |
|
| |
void |
| roff_endparse(struct roff *r) |
roff_endparse(struct roff *r) |
| { |
{ |
| |
if (r->last != NULL) |
| |
mandoc_msg(MANDOCERR_BLK_NOEND, r->last->line, |
| |
r->last->col, "%s", roff_name[r->last->tok]); |
| |
|
| if (NULL == r->last) |
if (r->eqn != NULL) { |
| return(1); |
mandoc_msg(MANDOCERR_BLK_NOEND, |
| return((*r->msg)(MANDOCERR_SCOPEEXIT, r->data, r->last->line, |
r->eqn->node->line, r->eqn->node->pos, "EQ"); |
| r->last->col, NULL)); |
eqn_parse(r->eqn); |
| |
r->eqn = NULL; |
| |
} |
| |
|
| |
if (r->tbl != NULL) { |
| |
tbl_end(r->tbl, 1); |
| |
r->tbl = NULL; |
| |
} |
| } |
} |
| |
|
| |
|
| /* |
/* |
| * Parse a roff node's type from the input buffer. This must be in the |
* Parse a roff node's type from the input buffer. This must be in the |
| * form of ".foo xxx" in the usual way. |
* form of ".foo xxx" in the usual way. |
| */ |
*/ |
| static enum rofft |
static enum roff_tok |
| roff_parse(const char *buf, int *pos) |
roff_parse(struct roff *r, char *buf, int *pos, int ln, int ppos) |
| { |
{ |
| int j; |
char *cp; |
| char mac[5]; |
const char *mac; |
| enum rofft t; |
size_t maclen; |
| |
int deftype; |
| |
enum roff_tok t; |
| |
|
| assert(ROFF_CTL(buf[*pos])); |
cp = buf + *pos; |
| (*pos)++; |
|
| |
|
| while (buf[*pos] && (' ' == buf[*pos] || '\t' == buf[*pos])) |
if ('\0' == *cp || '"' == *cp || '\t' == *cp || ' ' == *cp) |
| (*pos)++; |
return TOKEN_NONE; |
| |
|
| if ('\0' == buf[*pos]) |
mac = cp; |
| return(ROFF_MAX); |
maclen = roff_getname(r, &cp, ln, ppos); |
| |
|
| for (j = 0; j < 4; j++, (*pos)++) |
deftype = ROFFDEF_USER | ROFFDEF_REN; |
| if ('\0' == (mac[j] = buf[*pos])) |
r->current_string = roff_getstrn(r, mac, maclen, &deftype); |
| break; |
switch (deftype) { |
| else if (' ' == buf[*pos] || (j && '\\' == buf[*pos])) |
case ROFFDEF_USER: |
| break; |
t = ROFF_USERDEF; |
| |
break; |
| if (j == 4 || j < 1) |
case ROFFDEF_REN: |
| return(ROFF_MAX); |
t = ROFF_RENAMED; |
| |
break; |
| mac[j] = '\0'; |
default: |
| |
t = roffhash_find(r->reqtab, mac, maclen); |
| if (ROFF_MAX == (t = roff_hash_find(mac))) |
break; |
| return(t); |
} |
| |
if (t != TOKEN_NONE) |
| while (buf[*pos] && ' ' == buf[*pos]) |
*pos = cp - buf; |
| (*pos)++; |
else if (deftype == ROFFDEF_UNDEF) { |
| |
/* Using an undefined macro defines it to be empty. */ |
| return(t); |
roff_setstrn(&r->strtab, mac, maclen, "", 0, 0); |
| |
roff_setstrn(&r->rentab, mac, maclen, NULL, 0, 0); |
| |
} |
| |
return t; |
| } |
} |
| |
|
| |
/* --- handling of request blocks ----------------------------------------- */ |
| |
|
| |
/* |
| |
* Close a macro definition block or an "ignore" block. |
| |
*/ |
| static int |
static int |
| roff_parse_nat(const char *buf, unsigned int *res) |
|
| { |
|
| char *ep; |
|
| long lval; |
|
| |
|
| errno = 0; |
|
| lval = strtol(buf, &ep, 10); |
|
| if (buf[0] == '\0' || *ep != '\0') |
|
| return(0); |
|
| if ((errno == ERANGE && |
|
| (lval == LONG_MAX || lval == LONG_MIN)) || |
|
| (lval > INT_MAX || lval < 0)) |
|
| return(0); |
|
| |
|
| *res = (unsigned int)lval; |
|
| return(1); |
|
| } |
|
| |
|
| |
|
| /* ARGSUSED */ |
|
| static enum rofferr |
|
| roff_cblock(ROFF_ARGS) |
roff_cblock(ROFF_ARGS) |
| { |
{ |
| |
int rr; |
| |
|
| /* |
if (r->last == NULL) { |
| * A block-close `..' should only be invoked as a child of an |
mandoc_msg(MANDOCERR_BLK_NOTOPEN, ln, ppos, ".."); |
| * ignore macro, otherwise raise a warning and just ignore it. |
return ROFF_IGN; |
| */ |
|
| |
|
| if (NULL == r->last) { |
|
| if ( ! (*r->msg)(MANDOCERR_NOSCOPE, r->data, ln, ppos, NULL)) |
|
| return(ROFF_ERR); |
|
| return(ROFF_IGN); |
|
| } |
} |
| |
|
| switch (r->last->tok) { |
switch (r->last->tok) { |
| case (ROFF_am): |
case ROFF_am: |
| /* FALLTHROUGH */ |
case ROFF_ami: |
| case (ROFF_ami): |
case ROFF_de: |
| /* FALLTHROUGH */ |
case ROFF_dei: |
| case (ROFF_am1): |
case ROFF_ig: |
| /* FALLTHROUGH */ |
|
| case (ROFF_de): |
|
| /* FALLTHROUGH */ |
|
| case (ROFF_dei): |
|
| /* FALLTHROUGH */ |
|
| case (ROFF_de1): |
|
| /* FALLTHROUGH */ |
|
| case (ROFF_ig): |
|
| break; |
break; |
| |
case ROFF_am1: |
| |
case ROFF_de1: |
| |
/* Remapped in roff_block(). */ |
| |
abort(); |
| default: |
default: |
| if ( ! (*r->msg)(MANDOCERR_NOSCOPE, r->data, ln, ppos, NULL)) |
mandoc_msg(MANDOCERR_BLK_NOTOPEN, ln, ppos, ".."); |
| return(ROFF_ERR); |
return ROFF_IGN; |
| return(ROFF_IGN); |
|
| } |
} |
| |
|
| if ((*bufp)[pos]) |
|
| if ( ! (*r->msg)(MANDOCERR_ARGSLOST, r->data, ln, pos, NULL)) |
|
| return(ROFF_ERR); |
|
| |
|
| roffnode_pop(r); |
roffnode_pop(r); |
| roffnode_cleanscope(r); |
roffnode_cleanscope(r); |
| return(ROFF_IGN); |
|
| |
|
| } |
/* |
| |
* If a conditional block with braces is still open, |
| |
* check for "\}" block end markers. |
| |
*/ |
| |
|
| |
if (r->last != NULL && r->last->endspan < 0) { |
| |
rr = 1; /* If arguments follow "\}", warn about them. */ |
| |
roff_cond_checkend(r, tok, buf, ln, ppos, pos, &rr); |
| |
} |
| |
|
| static void |
if (buf->buf[pos] != '\0') |
| |
mandoc_msg(MANDOCERR_ARG_SKIP, ln, pos, |
| |
".. %s", buf->buf + pos); |
| |
|
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
/* |
| |
* Pop all nodes ending at the end of the current input line. |
| |
* Return the number of loops ended. |
| |
*/ |
| |
static int |
| roffnode_cleanscope(struct roff *r) |
roffnode_cleanscope(struct roff *r) |
| { |
{ |
| |
int inloop; |
| |
|
| while (r->last) { |
inloop = 0; |
| if (--r->last->endspan < 0) |
while (r->last != NULL && r->last->endspan > 0) { |
| |
if (--r->last->endspan != 0) |
| break; |
break; |
| roffnode_pop(r); |
inloop += roffnode_pop(r); |
| } |
} |
| |
return inloop; |
| } |
} |
| |
|
| |
/* |
| /* ARGSUSED */ |
* Handle the closing "\}" of a conditional block. |
| static enum rofferr |
* Apart from generating warnings, this only pops nodes. |
| roff_ccond(ROFF_ARGS) |
* Return the number of loops ended. |
| |
*/ |
| |
static int |
| |
roff_ccond(struct roff *r, int ln, int ppos) |
| { |
{ |
| |
|
| if (NULL == r->last) { |
if (NULL == r->last) { |
| if ( ! (*r->msg)(MANDOCERR_NOSCOPE, r->data, ln, ppos, NULL)) |
mandoc_msg(MANDOCERR_BLK_NOTOPEN, ln, ppos, "\\}"); |
| return(ROFF_ERR); |
return 0; |
| return(ROFF_IGN); |
|
| } |
} |
| |
|
| switch (r->last->tok) { |
switch (r->last->tok) { |
| case (ROFF_el): |
case ROFF_el: |
| /* FALLTHROUGH */ |
case ROFF_ie: |
| case (ROFF_ie): |
case ROFF_if: |
| /* FALLTHROUGH */ |
case ROFF_while: |
| case (ROFF_if): |
|
| break; |
break; |
| default: |
default: |
| if ( ! (*r->msg)(MANDOCERR_NOSCOPE, r->data, ln, ppos, NULL)) |
mandoc_msg(MANDOCERR_BLK_NOTOPEN, ln, ppos, "\\}"); |
| return(ROFF_ERR); |
return 0; |
| return(ROFF_IGN); |
|
| } |
} |
| |
|
| if (r->last->endspan > -1) { |
if (r->last->endspan > -1) { |
| if ( ! (*r->msg)(MANDOCERR_NOSCOPE, r->data, ln, ppos, NULL)) |
mandoc_msg(MANDOCERR_BLK_NOTOPEN, ln, ppos, "\\}"); |
| return(ROFF_ERR); |
return 0; |
| return(ROFF_IGN); |
|
| } |
} |
| |
|
| if ((*bufp)[pos]) |
return roffnode_pop(r) + roffnode_cleanscope(r); |
| if ( ! (*r->msg)(MANDOCERR_ARGSLOST, r->data, ln, pos, NULL)) |
|
| return(ROFF_ERR); |
|
| |
|
| roffnode_pop(r); |
|
| roffnode_cleanscope(r); |
|
| return(ROFF_IGN); |
|
| } |
} |
| |
|
| |
static int |
| /* ARGSUSED */ |
|
| static enum rofferr |
|
| roff_block(ROFF_ARGS) |
roff_block(ROFF_ARGS) |
| { |
{ |
| int sv; |
const char *name, *value; |
| size_t sz; |
char *call, *cp, *iname, *rname; |
| |
size_t csz, namesz, rsz; |
| |
int deftype; |
| |
|
| if (ROFF_ig != tok && '\0' == (*bufp)[pos]) { |
/* Ignore groff compatibility mode for now. */ |
| if ( ! (*r->msg)(MANDOCERR_NOARGS, r->data, ln, ppos, NULL)) |
|
| return(ROFF_ERR); |
if (tok == ROFF_de1) |
| return(ROFF_IGN); |
tok = ROFF_de; |
| } else if (ROFF_ig != tok) { |
else if (tok == ROFF_dei1) |
| while ((*bufp)[pos] && ' ' != (*bufp)[pos]) |
tok = ROFF_dei; |
| pos++; |
else if (tok == ROFF_am1) |
| while (' ' == (*bufp)[pos]) |
tok = ROFF_am; |
| pos++; |
else if (tok == ROFF_ami1) |
| |
tok = ROFF_ami; |
| |
|
| |
/* Parse the macro name argument. */ |
| |
|
| |
cp = buf->buf + pos; |
| |
if (tok == ROFF_ig) { |
| |
iname = NULL; |
| |
namesz = 0; |
| |
} else { |
| |
iname = cp; |
| |
namesz = roff_getname(r, &cp, ln, ppos); |
| |
iname[namesz] = '\0'; |
| } |
} |
| |
|
| roffnode_push(r, tok, ln, ppos); |
/* Resolve the macro name argument if it is indirect. */ |
| |
|
| if ('\0' == (*bufp)[pos]) |
if (namesz && (tok == ROFF_dei || tok == ROFF_ami)) { |
| return(ROFF_IGN); |
deftype = ROFFDEF_USER; |
| |
name = roff_getstrn(r, iname, namesz, &deftype); |
| |
if (name == NULL) { |
| |
mandoc_msg(MANDOCERR_STR_UNDEF, |
| |
ln, (int)(iname - buf->buf), |
| |
"%.*s", (int)namesz, iname); |
| |
namesz = 0; |
| |
} else |
| |
namesz = strlen(name); |
| |
} else |
| |
name = iname; |
| |
|
| sv = pos; |
if (namesz == 0 && tok != ROFF_ig) { |
| while ((*bufp)[pos] && ' ' != (*bufp)[pos] && |
mandoc_msg(MANDOCERR_REQ_EMPTY, |
| '\t' != (*bufp)[pos]) |
ln, ppos, "%s", roff_name[tok]); |
| pos++; |
return ROFF_IGN; |
| |
} |
| |
|
| |
roffnode_push(r, tok, name, ln, ppos); |
| |
|
| /* |
/* |
| * Note: groff does NOT like escape characters in the input. |
* At the beginning of a `de' macro, clear the existing string |
| * Instead of detecting this, we're just going to let it fly and |
* with the same name, if there is one. New content will be |
| * to hell with it. |
* appended from roff_block_text() in multiline mode. |
| */ |
*/ |
| |
|
| assert(pos > sv); |
if (tok == ROFF_de || tok == ROFF_dei) { |
| sz = (size_t)(pos - sv); |
roff_setstrn(&r->strtab, name, namesz, "", 0, 0); |
| |
roff_setstrn(&r->rentab, name, namesz, NULL, 0, 0); |
| |
} else if (tok == ROFF_am || tok == ROFF_ami) { |
| |
deftype = ROFFDEF_ANY; |
| |
value = roff_getstrn(r, iname, namesz, &deftype); |
| |
switch (deftype) { /* Before appending, ... */ |
| |
case ROFFDEF_PRE: /* copy predefined to user-defined. */ |
| |
roff_setstrn(&r->strtab, name, namesz, |
| |
value, strlen(value), 0); |
| |
break; |
| |
case ROFFDEF_REN: /* call original standard macro. */ |
| |
csz = mandoc_asprintf(&call, ".%.*s \\$* \\\"\n", |
| |
(int)strlen(value), value); |
| |
roff_setstrn(&r->strtab, name, namesz, call, csz, 0); |
| |
roff_setstrn(&r->rentab, name, namesz, NULL, 0, 0); |
| |
free(call); |
| |
break; |
| |
case ROFFDEF_STD: /* rename and call standard macro. */ |
| |
rsz = mandoc_asprintf(&rname, "__%s_renamed", name); |
| |
roff_setstrn(&r->rentab, rname, rsz, name, namesz, 0); |
| |
csz = mandoc_asprintf(&call, ".%.*s \\$* \\\"\n", |
| |
(int)rsz, rname); |
| |
roff_setstrn(&r->strtab, name, namesz, call, csz, 0); |
| |
free(call); |
| |
free(rname); |
| |
break; |
| |
default: |
| |
break; |
| |
} |
| |
} |
| |
|
| if (1 == sz && '.' == (*bufp)[sv]) |
if (*cp == '\0') |
| return(ROFF_IGN); |
return ROFF_IGN; |
| |
|
| r->last->end = mandoc_malloc(sz + 1); |
/* Get the custom end marker. */ |
| |
|
| memcpy(r->last->end, *bufp + sv, sz); |
iname = cp; |
| r->last->end[(int)sz] = '\0'; |
namesz = roff_getname(r, &cp, ln, ppos); |
| |
|
| if ((*bufp)[pos]) |
/* Resolve the end marker if it is indirect. */ |
| if ( ! (*r->msg)(MANDOCERR_ARGSLOST, r->data, ln, pos, NULL)) |
|
| return(ROFF_ERR); |
|
| |
|
| return(ROFF_IGN); |
if (namesz && (tok == ROFF_dei || tok == ROFF_ami)) { |
| } |
deftype = ROFFDEF_USER; |
| |
name = roff_getstrn(r, iname, namesz, &deftype); |
| |
if (name == NULL) { |
| |
mandoc_msg(MANDOCERR_STR_UNDEF, |
| |
ln, (int)(iname - buf->buf), |
| |
"%.*s", (int)namesz, iname); |
| |
namesz = 0; |
| |
} else |
| |
namesz = strlen(name); |
| |
} else |
| |
name = iname; |
| |
|
| |
if (namesz) |
| |
r->last->end = mandoc_strndup(name, namesz); |
| |
|
| /* ARGSUSED */ |
if (*cp != '\0') |
| static enum rofferr |
mandoc_msg(MANDOCERR_ARG_EXCESS, |
| |
ln, pos, ".%s ... %s", roff_name[tok], cp); |
| |
|
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
static int |
| roff_block_sub(ROFF_ARGS) |
roff_block_sub(ROFF_ARGS) |
| { |
{ |
| enum rofft t; |
enum roff_tok t; |
| int i, j; |
int i, j; |
| |
|
| /* |
/* |
| Line 707 roff_block_sub(ROFF_ARGS) |
|
| Line 2284 roff_block_sub(ROFF_ARGS) |
|
| */ |
*/ |
| |
|
| if (r->last->end) { |
if (r->last->end) { |
| i = pos + 1; |
for (i = pos, j = 0; r->last->end[j]; j++, i++) |
| while (' ' == (*bufp)[i] || '\t' == (*bufp)[i]) |
if (buf->buf[i] != r->last->end[j]) |
| i++; |
|
| |
|
| for (j = 0; r->last->end[j]; j++, i++) |
|
| if ((*bufp)[i] != r->last->end[j]) |
|
| break; |
break; |
| |
|
| if ('\0' == r->last->end[j] && |
if (r->last->end[j] == '\0' && |
| ('\0' == (*bufp)[i] || |
(buf->buf[i] == '\0' || |
| ' ' == (*bufp)[i] || |
buf->buf[i] == ' ' || |
| '\t' == (*bufp)[i])) { |
buf->buf[i] == '\t')) { |
| roffnode_pop(r); |
roffnode_pop(r); |
| roffnode_cleanscope(r); |
roffnode_cleanscope(r); |
| |
|
| if (ROFF_MAX != roff_parse(*bufp, &pos)) |
while (buf->buf[i] == ' ' || buf->buf[i] == '\t') |
| return(ROFF_RERUN); |
i++; |
| return(ROFF_IGN); |
|
| |
pos = i; |
| |
if (roff_parse(r, buf->buf, &pos, ln, ppos) != |
| |
TOKEN_NONE) |
| |
return ROFF_RERUN; |
| |
return ROFF_IGN; |
| } |
} |
| } |
} |
| |
|
| Line 733 roff_block_sub(ROFF_ARGS) |
|
| Line 2311 roff_block_sub(ROFF_ARGS) |
|
| * pulling it out of the hashtable. |
* pulling it out of the hashtable. |
| */ |
*/ |
| |
|
| ppos = pos; |
t = roff_parse(r, buf->buf, &pos, ln, ppos); |
| t = roff_parse(*bufp, &pos); |
|
| |
|
| /* If we're not a comment-end, then throw it away. */ |
if (t != ROFF_cblock) { |
| if (ROFF_cblock != t) |
if (tok != ROFF_ig) |
| return(ROFF_IGN); |
roff_setstr(r, r->last->name, buf->buf + ppos, 2); |
| |
return ROFF_IGN; |
| |
} |
| |
|
| assert(roffs[t].proc); |
return (*roffs[t].proc)(r, t, buf, ln, ppos, pos, offs); |
| return((*roffs[t].proc)(r, t, bufp, szp, |
|
| ln, ppos, pos, offs)); |
|
| } |
} |
| |
|
| |
static int |
| /* ARGSUSED */ |
|
| static enum rofferr |
|
| roff_block_text(ROFF_ARGS) |
roff_block_text(ROFF_ARGS) |
| { |
{ |
| |
|
| return(ROFF_IGN); |
if (tok != ROFF_ig) |
| |
roff_setstr(r, r->last->name, buf->buf + pos, 2); |
| |
|
| |
return ROFF_IGN; |
| } |
} |
| |
|
| |
/* |
| /* ARGSUSED */ |
* Check for a closing "\}" and handle it. |
| static enum rofferr |
* In this function, the final "int *offs" argument is used for |
| roff_cond_sub(ROFF_ARGS) |
* different purposes than elsewhere: |
| |
* Input: *offs == 0: caller wants to discard arguments following \} |
| |
* *offs == 1: caller wants to preserve text following \} |
| |
* Output: *offs = 0: tell caller to discard input line |
| |
* *offs = 1: tell caller to use input line |
| |
*/ |
| |
static int |
| |
roff_cond_checkend(ROFF_ARGS) |
| { |
{ |
| enum rofft t; |
char *ep; |
| enum roffrule rr; |
int endloop, irc, rr; |
| |
|
| ppos = pos; |
irc = ROFF_IGN; |
| rr = r->last->rule; |
rr = r->last->rule; |
| |
endloop = tok != ROFF_while ? ROFF_IGN : |
| |
rr ? ROFF_LOOPCONT : ROFF_LOOPEXIT; |
| |
if (roffnode_cleanscope(r)) |
| |
irc |= endloop; |
| |
|
| /* |
/* |
| * Clean out scope. If we've closed ourselves, then don't |
* If "\}" occurs on a macro line without a preceding macro or |
| * continue. |
* a text line contains nothing else, drop the line completely. |
| */ |
*/ |
| |
|
| roffnode_cleanscope(r); |
ep = buf->buf + pos; |
| |
if (ep[0] == '\\' && ep[1] == '}' && (ep[2] == '\0' || *offs == 0)) |
| |
rr = 0; |
| |
|
| if (ROFF_MAX == (t = roff_parse(*bufp, &pos))) { |
/* |
| if ('\\' == (*bufp)[pos] && '}' == (*bufp)[pos + 1]) |
* The closing delimiter "\}" rewinds the conditional scope |
| return(roff_ccond |
* but is otherwise ignored when interpreting the line. |
| (r, ROFF_ccond, bufp, szp, |
*/ |
| ln, pos, pos + 2, offs)); |
|
| return(ROFFRULE_DENY == rr ? ROFF_IGN : ROFF_CONT); |
while ((ep = strchr(ep, '\\')) != NULL) { |
| |
switch (ep[1]) { |
| |
case '}': |
| |
if (ep[2] == '\0') |
| |
ep[0] = '\0'; |
| |
else if (rr) |
| |
ep[1] = '&'; |
| |
else |
| |
memmove(ep, ep + 2, strlen(ep + 2) + 1); |
| |
if (roff_ccond(r, ln, ep - buf->buf)) |
| |
irc |= endloop; |
| |
break; |
| |
case '\0': |
| |
++ep; |
| |
break; |
| |
default: |
| |
ep += 2; |
| |
break; |
| |
} |
| } |
} |
| |
*offs = rr; |
| |
return irc; |
| |
} |
| |
|
| |
/* |
| |
* Parse and process a request or macro line in conditional scope. |
| |
*/ |
| |
static int |
| |
roff_cond_sub(ROFF_ARGS) |
| |
{ |
| |
struct roffnode *bl; |
| |
int irc, rr; |
| |
enum roff_tok t; |
| |
|
| |
rr = 0; /* If arguments follow "\}", skip them. */ |
| |
irc = roff_cond_checkend(r, tok, buf, ln, ppos, pos, &rr); |
| |
t = roff_parse(r, buf->buf, &pos, ln, ppos); |
| |
|
| |
/* For now, let high level macros abort .ce mode. */ |
| |
|
| |
if (roffce_node != NULL && |
| |
(t == TOKEN_NONE || t == ROFF_Dd || t == ROFF_EQ || |
| |
t == ROFF_TH || t == ROFF_TS)) { |
| |
r->man->last = roffce_node; |
| |
r->man->next = ROFF_NEXT_SIBLING; |
| |
roffce_lines = 0; |
| |
roffce_node = NULL; |
| |
} |
| |
|
| /* |
/* |
| * A denied conditional must evaluate its children if and only |
* Fully handle known macros when they are structurally |
| * if they're either structurally required (such as loops and |
* required or when the conditional evaluated to true. |
| * conditionals) or a closing macro. |
|
| */ |
*/ |
| if (ROFFRULE_DENY == rr) |
|
| if ( ! (ROFFMAC_STRUCT & roffs[t].flags)) |
|
| if (ROFF_ccond != t) |
|
| return(ROFF_IGN); |
|
| |
|
| assert(roffs[t].proc); |
if (t == ROFF_break) { |
| return((*roffs[t].proc)(r, t, bufp, szp, |
if (irc & ROFF_LOOPMASK) |
| ln, ppos, pos, offs)); |
irc = ROFF_IGN | ROFF_LOOPEXIT; |
| |
else if (rr) { |
| |
for (bl = r->last; bl != NULL; bl = bl->parent) { |
| |
bl->rule = 0; |
| |
if (bl->tok == ROFF_while) |
| |
break; |
| |
} |
| |
} |
| |
} else if (t != TOKEN_NONE && |
| |
(rr || roffs[t].flags & ROFFMAC_STRUCT)) { |
| |
irc |= (*roffs[t].proc)(r, t, buf, ln, ppos, pos, offs); |
| |
if (irc & ROFF_WHILE) |
| |
irc &= ~(ROFF_LOOPCONT | ROFF_LOOPEXIT); |
| |
} else |
| |
irc |= rr ? ROFF_CONT : ROFF_IGN; |
| |
return irc; |
| } |
} |
| |
|
| |
/* |
| /* ARGSUSED */ |
* Parse and process a text line in conditional scope. |
| static enum rofferr |
*/ |
| |
static int |
| roff_cond_text(ROFF_ARGS) |
roff_cond_text(ROFF_ARGS) |
| { |
{ |
| char *ep, *st; |
int irc, rr; |
| enum roffrule rr; |
|
| |
|
| rr = r->last->rule; |
rr = 1; /* If arguments follow "\}", preserve them. */ |
| |
irc = roff_cond_checkend(r, tok, buf, ln, ppos, pos, &rr); |
| |
if (rr) |
| |
irc |= ROFF_CONT; |
| |
return irc; |
| |
} |
| |
|
| /* |
/* --- handling of numeric and conditional expressions -------------------- */ |
| * We display the value of the text if out current evaluation |
|
| * scope permits us to do so. |
|
| */ |
|
| |
|
| /* FIXME: use roff_ccond? */ |
/* |
| |
* Parse a single signed integer number. Stop at the first non-digit. |
| |
* If there is at least one digit, return success and advance the |
| |
* parse point, else return failure and let the parse point unchanged. |
| |
* Ignore overflows, treat them just like the C language. |
| |
*/ |
| |
static int |
| |
roff_getnum(const char *v, int *pos, int *res, int flags) |
| |
{ |
| |
int myres, scaled, n, p; |
| |
|
| st = &(*bufp)[pos]; |
if (NULL == res) |
| if (NULL == (ep = strstr(st, "\\}"))) { |
res = &myres; |
| roffnode_cleanscope(r); |
|
| return(ROFFRULE_DENY == rr ? ROFF_IGN : ROFF_CONT); |
|
| } |
|
| |
|
| if (ep == st || (ep > st && '\\' != *(ep - 1))) |
p = *pos; |
| roffnode_pop(r); |
n = v[p] == '-'; |
| |
if (n || v[p] == '+') |
| |
p++; |
| |
|
| roffnode_cleanscope(r); |
if (flags & ROFFNUM_WHITE) |
| return(ROFFRULE_DENY == rr ? ROFF_IGN : ROFF_CONT); |
while (isspace((unsigned char)v[p])) |
| |
p++; |
| |
|
| |
for (*res = 0; isdigit((unsigned char)v[p]); p++) |
| |
*res = 10 * *res + v[p] - '0'; |
| |
if (p == *pos + n) |
| |
return 0; |
| |
|
| |
if (n) |
| |
*res = -*res; |
| |
|
| |
/* Each number may be followed by one optional scaling unit. */ |
| |
|
| |
switch (v[p]) { |
| |
case 'f': |
| |
scaled = *res * 65536; |
| |
break; |
| |
case 'i': |
| |
scaled = *res * 240; |
| |
break; |
| |
case 'c': |
| |
scaled = *res * 240 / 2.54; |
| |
break; |
| |
case 'v': |
| |
case 'P': |
| |
scaled = *res * 40; |
| |
break; |
| |
case 'm': |
| |
case 'n': |
| |
scaled = *res * 24; |
| |
break; |
| |
case 'p': |
| |
scaled = *res * 10 / 3; |
| |
break; |
| |
case 'u': |
| |
scaled = *res; |
| |
break; |
| |
case 'M': |
| |
scaled = *res * 6 / 25; |
| |
break; |
| |
default: |
| |
scaled = *res; |
| |
p--; |
| |
break; |
| |
} |
| |
if (flags & ROFFNUM_SCALE) |
| |
*res = scaled; |
| |
|
| |
*pos = p + 1; |
| |
return 1; |
| } |
} |
| |
|
| |
/* |
| |
* Evaluate a string comparison condition. |
| |
* The first character is the delimiter. |
| |
* Succeed if the string up to its second occurrence |
| |
* matches the string up to its third occurence. |
| |
* Advance the cursor after the third occurrence |
| |
* or lacking that, to the end of the line. |
| |
*/ |
| |
static int |
| |
roff_evalstrcond(const char *v, int *pos) |
| |
{ |
| |
const char *s1, *s2, *s3; |
| |
int match; |
| |
|
| static enum roffrule |
match = 0; |
| roff_evalcond(const char *v, int *pos) |
s1 = v + *pos; /* initial delimiter */ |
| |
s2 = s1 + 1; /* for scanning the first string */ |
| |
s3 = strchr(s2, *s1); /* for scanning the second string */ |
| |
|
| |
if (NULL == s3) /* found no middle delimiter */ |
| |
goto out; |
| |
|
| |
while ('\0' != *++s3) { |
| |
if (*s2 != *s3) { /* mismatch */ |
| |
s3 = strchr(s3, *s1); |
| |
break; |
| |
} |
| |
if (*s3 == *s1) { /* found the final delimiter */ |
| |
match = 1; |
| |
break; |
| |
} |
| |
s2++; |
| |
} |
| |
|
| |
out: |
| |
if (NULL == s3) |
| |
s3 = strchr(s2, '\0'); |
| |
else if (*s3 != '\0') |
| |
s3++; |
| |
*pos = s3 - v; |
| |
return match; |
| |
} |
| |
|
| |
/* |
| |
* Evaluate an optionally negated single character, numerical, |
| |
* or string condition. |
| |
*/ |
| |
static int |
| |
roff_evalcond(struct roff *r, int ln, char *v, int *pos) |
| { |
{ |
| |
const char *start, *end; |
| |
char *cp, *name; |
| |
size_t sz; |
| |
int deftype, len, number, savepos, istrue, wanttrue; |
| |
|
| |
if ('!' == v[*pos]) { |
| |
wanttrue = 0; |
| |
(*pos)++; |
| |
} else |
| |
wanttrue = 1; |
| |
|
| switch (v[*pos]) { |
switch (v[*pos]) { |
| case ('n'): |
case '\0': |
| |
return 0; |
| |
case 'n': |
| |
case 'o': |
| (*pos)++; |
(*pos)++; |
| return(ROFFRULE_ALLOW); |
return wanttrue; |
| case ('e'): |
case 'e': |
| /* FALLTHROUGH */ |
case 't': |
| case ('o'): |
case 'v': |
| /* FALLTHROUGH */ |
|
| case ('t'): |
|
| (*pos)++; |
(*pos)++; |
| return(ROFFRULE_DENY); |
return !wanttrue; |
| |
case 'c': |
| |
do { |
| |
(*pos)++; |
| |
} while (v[*pos] == ' '); |
| |
|
| |
/* |
| |
* Quirk for groff compatibility: |
| |
* The horizontal tab is neither available nor unavailable. |
| |
*/ |
| |
|
| |
if (v[*pos] == '\t') { |
| |
(*pos)++; |
| |
return 0; |
| |
} |
| |
|
| |
/* Printable ASCII characters are available. */ |
| |
|
| |
if (v[*pos] != '\\') { |
| |
(*pos)++; |
| |
return wanttrue; |
| |
} |
| |
|
| |
end = v + ++*pos; |
| |
switch (mandoc_escape(&end, &start, &len)) { |
| |
case ESCAPE_SPECIAL: |
| |
istrue = mchars_spec2cp(start, len) != -1; |
| |
break; |
| |
case ESCAPE_UNICODE: |
| |
istrue = 1; |
| |
break; |
| |
case ESCAPE_NUMBERED: |
| |
istrue = mchars_num2char(start, len) != -1; |
| |
break; |
| |
default: |
| |
istrue = !wanttrue; |
| |
break; |
| |
} |
| |
*pos = end - v; |
| |
return istrue == wanttrue; |
| |
case 'd': |
| |
case 'r': |
| |
cp = v + *pos + 1; |
| |
while (*cp == ' ') |
| |
cp++; |
| |
name = cp; |
| |
sz = roff_getname(r, &cp, ln, cp - v); |
| |
if (sz == 0) |
| |
istrue = 0; |
| |
else if (v[*pos] == 'r') |
| |
istrue = roff_hasregn(r, name, sz); |
| |
else { |
| |
deftype = ROFFDEF_ANY; |
| |
roff_getstrn(r, name, sz, &deftype); |
| |
istrue = !!deftype; |
| |
} |
| |
*pos = (name + sz) - v; |
| |
return istrue == wanttrue; |
| default: |
default: |
| break; |
break; |
| } |
} |
| |
|
| while (v[*pos] && ' ' != v[*pos]) |
savepos = *pos; |
| (*pos)++; |
if (roff_evalnum(r, ln, v, pos, &number, ROFFNUM_SCALE)) |
| return(ROFFRULE_DENY); |
return (number > 0) == wanttrue; |
| |
else if (*pos == savepos) |
| |
return roff_evalstrcond(v, pos) == wanttrue; |
| |
else |
| |
return 0; |
| } |
} |
| |
|
| /* ARGSUSED */ |
static int |
| static enum rofferr |
|
| roff_line_ignore(ROFF_ARGS) |
roff_line_ignore(ROFF_ARGS) |
| { |
{ |
| |
|
| return(ROFF_IGN); |
return ROFF_IGN; |
| } |
} |
| |
|
| /* ARGSUSED */ |
static int |
| static enum rofferr |
roff_insec(ROFF_ARGS) |
| roff_line_error(ROFF_ARGS) |
|
| { |
{ |
| |
|
| (*r->msg)(MANDOCERR_REQUEST, r->data, ln, ppos, roffs[tok].name); |
mandoc_msg(MANDOCERR_REQ_INSEC, ln, ppos, "%s", roff_name[tok]); |
| return(ROFF_IGN); |
return ROFF_IGN; |
| } |
} |
| |
|
| /* ARGSUSED */ |
static int |
| static enum rofferr |
roff_unsupp(ROFF_ARGS) |
| roff_cond(ROFF_ARGS) |
|
| { |
{ |
| int sv; |
|
| enum roffrule rule; |
|
| |
|
| /* Stack overflow! */ |
mandoc_msg(MANDOCERR_REQ_UNSUPP, ln, ppos, "%s", roff_name[tok]); |
| |
return ROFF_IGN; |
| |
} |
| |
|
| if (ROFF_ie == tok && r->rstackpos == RSTACK_MAX - 1) { |
static int |
| (*r->msg)(MANDOCERR_MEM, r->data, ln, ppos, NULL); |
roff_cond(ROFF_ARGS) |
| return(ROFF_ERR); |
{ |
| } |
int irc; |
| |
|
| /* First, evaluate the conditional. */ |
roffnode_push(r, tok, NULL, ln, ppos); |
| |
|
| if (ROFF_el == tok) { |
/* |
| /* |
* An `.el' has no conditional body: it will consume the value |
| * An `.el' will get the value of the current rstack |
* of the current rstack entry set in prior `ie' calls or |
| * entry set in prior `ie' calls or defaults to DENY. |
* defaults to DENY. |
| */ |
* |
| if (r->rstackpos < 0) |
* If we're not an `el', however, then evaluate the conditional. |
| rule = ROFFRULE_DENY; |
*/ |
| else |
|
| rule = r->rstack[r->rstackpos]; |
|
| } else |
|
| rule = roff_evalcond(*bufp, &pos); |
|
| |
|
| sv = pos; |
r->last->rule = tok == ROFF_el ? |
| |
(r->rstackpos < 0 ? 0 : r->rstack[r->rstackpos--]) : |
| |
roff_evalcond(r, ln, buf->buf, &pos); |
| |
|
| while (' ' == (*bufp)[pos]) |
|
| pos++; |
|
| |
|
| /* |
/* |
| * Roff is weird. If we have just white-space after the |
* An if-else will put the NEGATION of the current evaluated |
| * conditional, it's considered the BODY and we exit without |
* conditional into the stack of rules. |
| * really doing anything. Warn about this. It's probably |
|
| * wrong. |
|
| */ |
*/ |
| |
|
| if ('\0' == (*bufp)[pos] && sv != pos) { |
if (tok == ROFF_ie) { |
| if ((*r->msg)(MANDOCERR_NOARGS, r->data, ln, ppos, NULL)) |
if (r->rstackpos + 1 == r->rstacksz) { |
| return(ROFF_IGN); |
r->rstacksz += 16; |
| return(ROFF_ERR); |
r->rstack = mandoc_reallocarray(r->rstack, |
| |
r->rstacksz, sizeof(int)); |
| |
} |
| |
r->rstack[++r->rstackpos] = !r->last->rule; |
| } |
} |
| |
|
| roffnode_push(r, tok, ln, ppos); |
/* If the parent has false as its rule, then so do we. */ |
| |
|
| r->last->rule = rule; |
if (r->last->parent && !r->last->parent->rule) |
| |
r->last->rule = 0; |
| |
|
| ROFF_DEBUG("roff: cond: %s -> %s\n", roffs[tok].name, |
/* |
| ROFFRULE_ALLOW == rule ? "allow" : "deny"); |
* Determine scope. |
| |
* If there is nothing on the line after the conditional, |
| |
* not even whitespace, use next-line scope. |
| |
* Except that .while does not support next-line scope. |
| |
*/ |
| |
|
| if (ROFF_ie == tok) { |
if (buf->buf[pos] == '\0' && tok != ROFF_while) { |
| /* |
r->last->endspan = 2; |
| * An if-else will put the NEGATION of the current |
goto out; |
| * evaluated conditional into the stack. |
|
| */ |
|
| r->rstackpos++; |
|
| if (ROFFRULE_DENY == r->last->rule) |
|
| r->rstack[r->rstackpos] = ROFFRULE_ALLOW; |
|
| else |
|
| r->rstack[r->rstackpos] = ROFFRULE_DENY; |
|
| } |
} |
| |
|
| /* If the parent has false as its rule, then so do we. */ |
while (buf->buf[pos] == ' ') |
| |
pos++; |
| |
|
| if (r->last->parent && ROFFRULE_DENY == r->last->parent->rule) { |
/* An opening brace requests multiline scope. */ |
| r->last->rule = ROFFRULE_DENY; |
|
| ROFF_DEBUG("roff: cond override: %s -> deny\n", |
if (buf->buf[pos] == '\\' && buf->buf[pos + 1] == '{') { |
| roffs[tok].name); |
r->last->endspan = -1; |
| |
pos += 2; |
| |
while (buf->buf[pos] == ' ') |
| |
pos++; |
| |
goto out; |
| } |
} |
| |
|
| /* |
/* |
| * Determine scope. If we're invoked with "\{" trailing the |
* Anything else following the conditional causes |
| * conditional, then we're in a multiline scope. Else our scope |
* single-line scope. Warn if the scope contains |
| * expires on the next line. |
* nothing but trailing whitespace. |
| */ |
*/ |
| |
|
| |
if (buf->buf[pos] == '\0') |
| |
mandoc_msg(MANDOCERR_COND_EMPTY, |
| |
ln, ppos, "%s", roff_name[tok]); |
| |
|
| r->last->endspan = 1; |
r->last->endspan = 1; |
| |
|
| if ('\\' == (*bufp)[pos] && '{' == (*bufp)[pos + 1]) { |
out: |
| r->last->endspan = -1; |
*offs = pos; |
| pos += 2; |
irc = ROFF_RERUN; |
| ROFF_DEBUG("roff: cond-scope: %s, multi-line\n", |
if (tok == ROFF_while) |
| roffs[tok].name); |
irc |= ROFF_WHILE; |
| } else |
return irc; |
| ROFF_DEBUG("roff: cond-scope: %s, one-line\n", |
} |
| roffs[tok].name); |
|
| |
|
| |
static int |
| |
roff_ds(ROFF_ARGS) |
| |
{ |
| |
char *string; |
| |
const char *name; |
| |
size_t namesz; |
| |
|
| |
/* Ignore groff compatibility mode for now. */ |
| |
|
| |
if (tok == ROFF_ds1) |
| |
tok = ROFF_ds; |
| |
else if (tok == ROFF_as1) |
| |
tok = ROFF_as; |
| |
|
| /* |
/* |
| * If there are no arguments on the line, the next-line scope is |
* The first word is the name of the string. |
| * assumed. |
* If it is empty or terminated by an escape sequence, |
| |
* abort the `ds' request without defining anything. |
| */ |
*/ |
| |
|
| if ('\0' == (*bufp)[pos]) |
name = string = buf->buf + pos; |
| return(ROFF_IGN); |
if (*name == '\0') |
| |
return ROFF_IGN; |
| |
|
| /* Otherwise re-run the roff parser after recalculating. */ |
namesz = roff_getname(r, &string, ln, pos); |
| |
switch (name[namesz]) { |
| |
case '\\': |
| |
return ROFF_IGN; |
| |
case '\t': |
| |
string = buf->buf + pos + namesz; |
| |
break; |
| |
default: |
| |
break; |
| |
} |
| |
|
| *offs = pos; |
/* Read past the initial double-quote, if any. */ |
| return(ROFF_RERUN); |
if (*string == '"') |
| |
string++; |
| |
|
| |
/* The rest is the value. */ |
| |
roff_setstrn(&r->strtab, name, namesz, string, strlen(string), |
| |
ROFF_as == tok); |
| |
roff_setstrn(&r->rentab, name, namesz, NULL, 0, 0); |
| |
return ROFF_IGN; |
| } |
} |
| |
|
| |
/* |
| |
* Parse a single operator, one or two characters long. |
| |
* If the operator is recognized, return success and advance the |
| |
* parse point, else return failure and let the parse point unchanged. |
| |
*/ |
| |
static int |
| |
roff_getop(const char *v, int *pos, char *res) |
| |
{ |
| |
|
| /* ARGSUSED */ |
*res = v[*pos]; |
| static enum rofferr |
|
| roff_ds(ROFF_ARGS) |
switch (*res) { |
| |
case '+': |
| |
case '-': |
| |
case '*': |
| |
case '/': |
| |
case '%': |
| |
case '&': |
| |
case ':': |
| |
break; |
| |
case '<': |
| |
switch (v[*pos + 1]) { |
| |
case '=': |
| |
*res = 'l'; |
| |
(*pos)++; |
| |
break; |
| |
case '>': |
| |
*res = '!'; |
| |
(*pos)++; |
| |
break; |
| |
case '?': |
| |
*res = 'i'; |
| |
(*pos)++; |
| |
break; |
| |
default: |
| |
break; |
| |
} |
| |
break; |
| |
case '>': |
| |
switch (v[*pos + 1]) { |
| |
case '=': |
| |
*res = 'g'; |
| |
(*pos)++; |
| |
break; |
| |
case '?': |
| |
*res = 'a'; |
| |
(*pos)++; |
| |
break; |
| |
default: |
| |
break; |
| |
} |
| |
break; |
| |
case '=': |
| |
if ('=' == v[*pos + 1]) |
| |
(*pos)++; |
| |
break; |
| |
default: |
| |
return 0; |
| |
} |
| |
(*pos)++; |
| |
|
| |
return *res; |
| |
} |
| |
|
| |
/* |
| |
* Evaluate either a parenthesized numeric expression |
| |
* or a single signed integer number. |
| |
*/ |
| |
static int |
| |
roff_evalpar(struct roff *r, int ln, |
| |
const char *v, int *pos, int *res, int flags) |
| { |
{ |
| char *name, *string; |
|
| |
|
| |
if ('(' != v[*pos]) |
| |
return roff_getnum(v, pos, res, flags); |
| |
|
| |
(*pos)++; |
| |
if ( ! roff_evalnum(r, ln, v, pos, res, flags | ROFFNUM_WHITE)) |
| |
return 0; |
| |
|
| /* |
/* |
| * A symbol is named by the first word following the macro |
* Omission of the closing parenthesis |
| * invocation up to a space. Its value is anything after the |
* is an error in validation mode, |
| * name's trailing whitespace and optional double-quote. Thus, |
* but ignored in evaluation mode. |
| * |
|
| * [.ds foo "bar " ] |
|
| * |
|
| * will have `bar " ' as its value. |
|
| */ |
*/ |
| |
|
| name = *bufp + pos; |
if (')' == v[*pos]) |
| if ('\0' == *name) |
(*pos)++; |
| return(ROFF_IGN); |
else if (NULL == res) |
| |
return 0; |
| |
|
| string = name; |
return 1; |
| /* Read until end of name. */ |
} |
| while (*string && ' ' != *string) |
|
| string++; |
|
| |
|
| /* Nil-terminate name. */ |
/* |
| if (*string) |
* Evaluate a complete numeric expression. |
| *(string++) = '\0'; |
* Proceed left to right, there is no concept of precedence. |
| |
*/ |
| /* Read past spaces. */ |
static int |
| while (*string && ' ' == *string) |
roff_evalnum(struct roff *r, int ln, const char *v, |
| string++; |
int *pos, int *res, int flags) |
| |
{ |
| |
int mypos, operand2; |
| |
char operator; |
| |
|
| /* Read passed initial double-quote. */ |
if (NULL == pos) { |
| if (*string && '"' == *string) |
mypos = 0; |
| string++; |
pos = &mypos; |
| |
} |
| |
|
| /* The rest is the value. */ |
if (flags & ROFFNUM_WHITE) |
| roff_setstr(r, name, string); |
while (isspace((unsigned char)v[*pos])) |
| return(ROFF_IGN); |
(*pos)++; |
| |
|
| |
if ( ! roff_evalpar(r, ln, v, pos, res, flags)) |
| |
return 0; |
| |
|
| |
while (1) { |
| |
if (flags & ROFFNUM_WHITE) |
| |
while (isspace((unsigned char)v[*pos])) |
| |
(*pos)++; |
| |
|
| |
if ( ! roff_getop(v, pos, &operator)) |
| |
break; |
| |
|
| |
if (flags & ROFFNUM_WHITE) |
| |
while (isspace((unsigned char)v[*pos])) |
| |
(*pos)++; |
| |
|
| |
if ( ! roff_evalpar(r, ln, v, pos, &operand2, flags)) |
| |
return 0; |
| |
|
| |
if (flags & ROFFNUM_WHITE) |
| |
while (isspace((unsigned char)v[*pos])) |
| |
(*pos)++; |
| |
|
| |
if (NULL == res) |
| |
continue; |
| |
|
| |
switch (operator) { |
| |
case '+': |
| |
*res += operand2; |
| |
break; |
| |
case '-': |
| |
*res -= operand2; |
| |
break; |
| |
case '*': |
| |
*res *= operand2; |
| |
break; |
| |
case '/': |
| |
if (operand2 == 0) { |
| |
mandoc_msg(MANDOCERR_DIVZERO, |
| |
ln, *pos, "%s", v); |
| |
*res = 0; |
| |
break; |
| |
} |
| |
*res /= operand2; |
| |
break; |
| |
case '%': |
| |
if (operand2 == 0) { |
| |
mandoc_msg(MANDOCERR_DIVZERO, |
| |
ln, *pos, "%s", v); |
| |
*res = 0; |
| |
break; |
| |
} |
| |
*res %= operand2; |
| |
break; |
| |
case '<': |
| |
*res = *res < operand2; |
| |
break; |
| |
case '>': |
| |
*res = *res > operand2; |
| |
break; |
| |
case 'l': |
| |
*res = *res <= operand2; |
| |
break; |
| |
case 'g': |
| |
*res = *res >= operand2; |
| |
break; |
| |
case '=': |
| |
*res = *res == operand2; |
| |
break; |
| |
case '!': |
| |
*res = *res != operand2; |
| |
break; |
| |
case '&': |
| |
*res = *res && operand2; |
| |
break; |
| |
case ':': |
| |
*res = *res || operand2; |
| |
break; |
| |
case 'i': |
| |
if (operand2 < *res) |
| |
*res = operand2; |
| |
break; |
| |
case 'a': |
| |
if (operand2 > *res) |
| |
*res = operand2; |
| |
break; |
| |
default: |
| |
abort(); |
| |
} |
| |
} |
| |
return 1; |
| } |
} |
| |
|
| |
/* --- register management ------------------------------------------------ */ |
| |
|
| /* ARGSUSED */ |
void |
| static enum rofferr |
roff_setreg(struct roff *r, const char *name, int val, char sign) |
| |
{ |
| |
roff_setregn(r, name, strlen(name), val, sign, INT_MIN); |
| |
} |
| |
|
| |
static void |
| |
roff_setregn(struct roff *r, const char *name, size_t len, |
| |
int val, char sign, int step) |
| |
{ |
| |
struct roffreg *reg; |
| |
|
| |
/* Search for an existing register with the same name. */ |
| |
reg = r->regtab; |
| |
|
| |
while (reg != NULL && (reg->key.sz != len || |
| |
strncmp(reg->key.p, name, len) != 0)) |
| |
reg = reg->next; |
| |
|
| |
if (NULL == reg) { |
| |
/* Create a new register. */ |
| |
reg = mandoc_malloc(sizeof(struct roffreg)); |
| |
reg->key.p = mandoc_strndup(name, len); |
| |
reg->key.sz = len; |
| |
reg->val = 0; |
| |
reg->step = 0; |
| |
reg->next = r->regtab; |
| |
r->regtab = reg; |
| |
} |
| |
|
| |
if ('+' == sign) |
| |
reg->val += val; |
| |
else if ('-' == sign) |
| |
reg->val -= val; |
| |
else |
| |
reg->val = val; |
| |
if (step != INT_MIN) |
| |
reg->step = step; |
| |
} |
| |
|
| |
/* |
| |
* Handle some predefined read-only number registers. |
| |
* For now, return -1 if the requested register is not predefined; |
| |
* in case a predefined read-only register having the value -1 |
| |
* were to turn up, another special value would have to be chosen. |
| |
*/ |
| |
static int |
| |
roff_getregro(const struct roff *r, const char *name) |
| |
{ |
| |
|
| |
switch (*name) { |
| |
case '$': /* Number of arguments of the last macro evaluated. */ |
| |
return r->mstackpos < 0 ? 0 : r->mstack[r->mstackpos].argc; |
| |
case 'A': /* ASCII approximation mode is always off. */ |
| |
return 0; |
| |
case 'g': /* Groff compatibility mode is always on. */ |
| |
return 1; |
| |
case 'H': /* Fixed horizontal resolution. */ |
| |
return 24; |
| |
case 'j': /* Always adjust left margin only. */ |
| |
return 0; |
| |
case 'T': /* Some output device is always defined. */ |
| |
return 1; |
| |
case 'V': /* Fixed vertical resolution. */ |
| |
return 40; |
| |
default: |
| |
return -1; |
| |
} |
| |
} |
| |
|
| |
int |
| |
roff_getreg(struct roff *r, const char *name) |
| |
{ |
| |
return roff_getregn(r, name, strlen(name), '\0'); |
| |
} |
| |
|
| |
static int |
| |
roff_getregn(struct roff *r, const char *name, size_t len, char sign) |
| |
{ |
| |
struct roffreg *reg; |
| |
int val; |
| |
|
| |
if ('.' == name[0] && 2 == len) { |
| |
val = roff_getregro(r, name + 1); |
| |
if (-1 != val) |
| |
return val; |
| |
} |
| |
|
| |
for (reg = r->regtab; reg; reg = reg->next) { |
| |
if (len == reg->key.sz && |
| |
0 == strncmp(name, reg->key.p, len)) { |
| |
switch (sign) { |
| |
case '+': |
| |
reg->val += reg->step; |
| |
break; |
| |
case '-': |
| |
reg->val -= reg->step; |
| |
break; |
| |
default: |
| |
break; |
| |
} |
| |
return reg->val; |
| |
} |
| |
} |
| |
|
| |
roff_setregn(r, name, len, 0, '\0', INT_MIN); |
| |
return 0; |
| |
} |
| |
|
| |
static int |
| |
roff_hasregn(const struct roff *r, const char *name, size_t len) |
| |
{ |
| |
struct roffreg *reg; |
| |
int val; |
| |
|
| |
if ('.' == name[0] && 2 == len) { |
| |
val = roff_getregro(r, name + 1); |
| |
if (-1 != val) |
| |
return 1; |
| |
} |
| |
|
| |
for (reg = r->regtab; reg; reg = reg->next) |
| |
if (len == reg->key.sz && |
| |
0 == strncmp(name, reg->key.p, len)) |
| |
return 1; |
| |
|
| |
return 0; |
| |
} |
| |
|
| |
static void |
| |
roff_freereg(struct roffreg *reg) |
| |
{ |
| |
struct roffreg *old_reg; |
| |
|
| |
while (NULL != reg) { |
| |
free(reg->key.p); |
| |
old_reg = reg; |
| |
reg = reg->next; |
| |
free(old_reg); |
| |
} |
| |
} |
| |
|
| |
static int |
| roff_nr(ROFF_ARGS) |
roff_nr(ROFF_ARGS) |
| { |
{ |
| const char *key, *val; |
char *key, *val, *step; |
| struct reg *rg; |
size_t keysz; |
| |
int iv, is, len; |
| |
char sign; |
| |
|
| key = &(*bufp)[pos]; |
key = val = buf->buf + pos; |
| rg = r->regs->regs; |
if (*key == '\0') |
| |
return ROFF_IGN; |
| |
|
| /* Parse register request. */ |
keysz = roff_getname(r, &val, ln, pos); |
| while ((*bufp)[pos] && ' ' != (*bufp)[pos]) |
if (key[keysz] == '\\' || key[keysz] == '\t') |
| |
return ROFF_IGN; |
| |
|
| |
sign = *val; |
| |
if (sign == '+' || sign == '-') |
| |
val++; |
| |
|
| |
len = 0; |
| |
if (roff_evalnum(r, ln, val, &len, &iv, ROFFNUM_SCALE) == 0) |
| |
return ROFF_IGN; |
| |
|
| |
step = val + len; |
| |
while (isspace((unsigned char)*step)) |
| |
step++; |
| |
if (roff_evalnum(r, ln, step, NULL, &is, 0) == 0) |
| |
is = INT_MIN; |
| |
|
| |
roff_setregn(r, key, keysz, iv, sign, is); |
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
static int |
| |
roff_rr(ROFF_ARGS) |
| |
{ |
| |
struct roffreg *reg, **prev; |
| |
char *name, *cp; |
| |
size_t namesz; |
| |
|
| |
name = cp = buf->buf + pos; |
| |
if (*name == '\0') |
| |
return ROFF_IGN; |
| |
namesz = roff_getname(r, &cp, ln, pos); |
| |
name[namesz] = '\0'; |
| |
|
| |
prev = &r->regtab; |
| |
while (1) { |
| |
reg = *prev; |
| |
if (reg == NULL || !strcmp(name, reg->key.p)) |
| |
break; |
| |
prev = ®->next; |
| |
} |
| |
if (reg != NULL) { |
| |
*prev = reg->next; |
| |
free(reg->key.p); |
| |
free(reg); |
| |
} |
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
/* --- handler functions for roff requests -------------------------------- */ |
| |
|
| |
static int |
| |
roff_rm(ROFF_ARGS) |
| |
{ |
| |
const char *name; |
| |
char *cp; |
| |
size_t namesz; |
| |
|
| |
cp = buf->buf + pos; |
| |
while (*cp != '\0') { |
| |
name = cp; |
| |
namesz = roff_getname(r, &cp, ln, (int)(cp - buf->buf)); |
| |
roff_setstrn(&r->strtab, name, namesz, NULL, 0, 0); |
| |
roff_setstrn(&r->rentab, name, namesz, NULL, 0, 0); |
| |
if (name[namesz] == '\\' || name[namesz] == '\t') |
| |
break; |
| |
} |
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
static int |
| |
roff_it(ROFF_ARGS) |
| |
{ |
| |
int iv; |
| |
|
| |
/* Parse the number of lines. */ |
| |
|
| |
if ( ! roff_evalnum(r, ln, buf->buf, &pos, &iv, 0)) { |
| |
mandoc_msg(MANDOCERR_IT_NONUM, |
| |
ln, ppos, "%s", buf->buf + 1); |
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
while (isspace((unsigned char)buf->buf[pos])) |
| pos++; |
pos++; |
| |
|
| /* |
/* |
| * Set our nil terminator. Because this line is going to be |
* Arm the input line trap. |
| * ignored anyway, we can munge it as we please. |
* Special-casing "an-trap" is an ugly workaround to cope |
| |
* with DocBook stupidly fiddling with man(7) internals. |
| */ |
*/ |
| if ((*bufp)[pos]) |
|
| (*bufp)[pos++] = '\0'; |
|
| |
|
| /* Skip whitespace to register token. */ |
roffit_lines = iv; |
| while ((*bufp)[pos] && ' ' == (*bufp)[pos]) |
roffit_macro = mandoc_strdup(iv != 1 || |
| pos++; |
strcmp(buf->buf + pos, "an-trap") ? |
| |
buf->buf + pos : "br"); |
| |
return ROFF_IGN; |
| |
} |
| |
|
| val = &(*bufp)[pos]; |
static int |
| |
roff_Dd(ROFF_ARGS) |
| |
{ |
| |
int mask; |
| |
enum roff_tok t, te; |
| |
|
| /* Process register token. */ |
switch (tok) { |
| |
case ROFF_Dd: |
| |
tok = MDOC_Dd; |
| |
te = MDOC_MAX; |
| |
if (r->format == 0) |
| |
r->format = MPARSE_MDOC; |
| |
mask = MPARSE_MDOC | MPARSE_QUICK; |
| |
break; |
| |
case ROFF_TH: |
| |
tok = MAN_TH; |
| |
te = MAN_MAX; |
| |
if (r->format == 0) |
| |
r->format = MPARSE_MAN; |
| |
mask = MPARSE_QUICK; |
| |
break; |
| |
default: |
| |
abort(); |
| |
} |
| |
if ((r->options & mask) == 0) |
| |
for (t = tok; t < te; t++) |
| |
roff_setstr(r, roff_name[t], NULL, 0); |
| |
return ROFF_CONT; |
| |
} |
| |
|
| if (0 == strcmp(key, "nS")) { |
static int |
| rg[(int)REG_nS].set = 1; |
roff_TE(ROFF_ARGS) |
| if ( ! roff_parse_nat(val, &rg[(int)REG_nS].v.u)) |
{ |
| rg[(int)REG_nS].v.u = 0; |
r->man->flags &= ~ROFF_NONOFILL; |
| |
if (r->tbl == NULL) { |
| |
mandoc_msg(MANDOCERR_BLK_NOTOPEN, ln, ppos, "TE"); |
| |
return ROFF_IGN; |
| |
} |
| |
if (tbl_end(r->tbl, 0) == 0) { |
| |
r->tbl = NULL; |
| |
free(buf->buf); |
| |
buf->buf = mandoc_strdup(".sp"); |
| |
buf->sz = 4; |
| |
*offs = 0; |
| |
return ROFF_REPARSE; |
| |
} |
| |
r->tbl = NULL; |
| |
return ROFF_IGN; |
| |
} |
| |
|
| ROFF_DEBUG("roff: register nS: %u\n", |
static int |
| rg[(int)REG_nS].v.u); |
roff_T_(ROFF_ARGS) |
| |
{ |
| |
|
| |
if (NULL == r->tbl) |
| |
mandoc_msg(MANDOCERR_BLK_NOTOPEN, ln, ppos, "T&"); |
| |
else |
| |
tbl_restart(ln, ppos, r->tbl); |
| |
|
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
/* |
| |
* Handle in-line equation delimiters. |
| |
*/ |
| |
static int |
| |
roff_eqndelim(struct roff *r, struct buf *buf, int pos) |
| |
{ |
| |
char *cp1, *cp2; |
| |
const char *bef_pr, *bef_nl, *mac, *aft_nl, *aft_pr; |
| |
|
| |
/* |
| |
* Outside equations, look for an opening delimiter. |
| |
* If we are inside an equation, we already know it is |
| |
* in-line, or this function wouldn't have been called; |
| |
* so look for a closing delimiter. |
| |
*/ |
| |
|
| |
cp1 = buf->buf + pos; |
| |
cp2 = strchr(cp1, r->eqn == NULL ? |
| |
r->last_eqn->odelim : r->last_eqn->cdelim); |
| |
if (cp2 == NULL) |
| |
return ROFF_CONT; |
| |
|
| |
*cp2++ = '\0'; |
| |
bef_pr = bef_nl = aft_nl = aft_pr = ""; |
| |
|
| |
/* Handle preceding text, protecting whitespace. */ |
| |
|
| |
if (*buf->buf != '\0') { |
| |
if (r->eqn == NULL) |
| |
bef_pr = "\\&"; |
| |
bef_nl = "\n"; |
| |
} |
| |
|
| |
/* |
| |
* Prepare replacing the delimiter with an equation macro |
| |
* and drop leading white space from the equation. |
| |
*/ |
| |
|
| |
if (r->eqn == NULL) { |
| |
while (*cp2 == ' ') |
| |
cp2++; |
| |
mac = ".EQ"; |
| } else |
} else |
| ROFF_DEBUG("roff: ignoring register: %s\n", key); |
mac = ".EN"; |
| |
|
| return(ROFF_IGN); |
/* Handle following text, protecting whitespace. */ |
| |
|
| |
if (*cp2 != '\0') { |
| |
aft_nl = "\n"; |
| |
if (r->eqn != NULL) |
| |
aft_pr = "\\&"; |
| |
} |
| |
|
| |
/* Do the actual replacement. */ |
| |
|
| |
buf->sz = mandoc_asprintf(&cp1, "%s%s%s%s%s%s%s", buf->buf, |
| |
bef_pr, bef_nl, mac, aft_nl, aft_pr, cp2) + 1; |
| |
free(buf->buf); |
| |
buf->buf = cp1; |
| |
|
| |
/* Toggle the in-line state of the eqn subsystem. */ |
| |
|
| |
r->eqn_inline = r->eqn == NULL; |
| |
return ROFF_REPARSE; |
| } |
} |
| |
|
| /* ARGSUSED */ |
static int |
| static enum rofferr |
roff_EQ(ROFF_ARGS) |
| |
{ |
| |
struct roff_node *n; |
| |
|
| |
if (r->man->meta.macroset == MACROSET_MAN) |
| |
man_breakscope(r->man, ROFF_EQ); |
| |
n = roff_node_alloc(r->man, ln, ppos, ROFFT_EQN, TOKEN_NONE); |
| |
if (ln > r->man->last->line) |
| |
n->flags |= NODE_LINE; |
| |
n->eqn = eqn_box_new(); |
| |
roff_node_append(r->man, n); |
| |
r->man->next = ROFF_NEXT_SIBLING; |
| |
|
| |
assert(r->eqn == NULL); |
| |
if (r->last_eqn == NULL) |
| |
r->last_eqn = eqn_alloc(); |
| |
else |
| |
eqn_reset(r->last_eqn); |
| |
r->eqn = r->last_eqn; |
| |
r->eqn->node = n; |
| |
|
| |
if (buf->buf[pos] != '\0') |
| |
mandoc_msg(MANDOCERR_ARG_SKIP, ln, pos, |
| |
".EQ %s", buf->buf + pos); |
| |
|
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
static int |
| |
roff_EN(ROFF_ARGS) |
| |
{ |
| |
if (r->eqn != NULL) { |
| |
eqn_parse(r->eqn); |
| |
r->eqn = NULL; |
| |
} else |
| |
mandoc_msg(MANDOCERR_BLK_NOTOPEN, ln, ppos, "EN"); |
| |
if (buf->buf[pos] != '\0') |
| |
mandoc_msg(MANDOCERR_ARG_SKIP, ln, pos, |
| |
"EN %s", buf->buf + pos); |
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
static int |
| |
roff_TS(ROFF_ARGS) |
| |
{ |
| |
if (r->tbl != NULL) { |
| |
mandoc_msg(MANDOCERR_BLK_BROKEN, ln, ppos, "TS breaks TS"); |
| |
tbl_end(r->tbl, 0); |
| |
} |
| |
r->man->flags |= ROFF_NONOFILL; |
| |
r->tbl = tbl_alloc(ppos, ln, r->last_tbl); |
| |
if (r->last_tbl == NULL) |
| |
r->first_tbl = r->tbl; |
| |
r->last_tbl = r->tbl; |
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
static int |
| |
roff_noarg(ROFF_ARGS) |
| |
{ |
| |
if (r->man->flags & (MAN_BLINE | MAN_ELINE)) |
| |
man_breakscope(r->man, tok); |
| |
if (tok == ROFF_brp) |
| |
tok = ROFF_br; |
| |
roff_elem_alloc(r->man, ln, ppos, tok); |
| |
if (buf->buf[pos] != '\0') |
| |
mandoc_msg(MANDOCERR_ARG_SKIP, ln, pos, |
| |
"%s %s", roff_name[tok], buf->buf + pos); |
| |
if (tok == ROFF_nf) |
| |
r->man->flags |= ROFF_NOFILL; |
| |
else if (tok == ROFF_fi) |
| |
r->man->flags &= ~ROFF_NOFILL; |
| |
r->man->last->flags |= NODE_LINE | NODE_VALID | NODE_ENDED; |
| |
r->man->next = ROFF_NEXT_SIBLING; |
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
static int |
| |
roff_onearg(ROFF_ARGS) |
| |
{ |
| |
struct roff_node *n; |
| |
char *cp; |
| |
int npos; |
| |
|
| |
if (r->man->flags & (MAN_BLINE | MAN_ELINE) && |
| |
(tok == ROFF_ce || tok == ROFF_rj || tok == ROFF_sp || |
| |
tok == ROFF_ti)) |
| |
man_breakscope(r->man, tok); |
| |
|
| |
if (roffce_node != NULL && (tok == ROFF_ce || tok == ROFF_rj)) { |
| |
r->man->last = roffce_node; |
| |
r->man->next = ROFF_NEXT_SIBLING; |
| |
} |
| |
|
| |
roff_elem_alloc(r->man, ln, ppos, tok); |
| |
n = r->man->last; |
| |
|
| |
cp = buf->buf + pos; |
| |
if (*cp != '\0') { |
| |
while (*cp != '\0' && *cp != ' ') |
| |
cp++; |
| |
while (*cp == ' ') |
| |
*cp++ = '\0'; |
| |
if (*cp != '\0') |
| |
mandoc_msg(MANDOCERR_ARG_EXCESS, |
| |
ln, (int)(cp - buf->buf), |
| |
"%s ... %s", roff_name[tok], cp); |
| |
roff_word_alloc(r->man, ln, pos, buf->buf + pos); |
| |
} |
| |
|
| |
if (tok == ROFF_ce || tok == ROFF_rj) { |
| |
if (r->man->last->type == ROFFT_ELEM) { |
| |
roff_word_alloc(r->man, ln, pos, "1"); |
| |
r->man->last->flags |= NODE_NOSRC; |
| |
} |
| |
npos = 0; |
| |
if (roff_evalnum(r, ln, r->man->last->string, &npos, |
| |
&roffce_lines, 0) == 0) { |
| |
mandoc_msg(MANDOCERR_CE_NONUM, |
| |
ln, pos, "ce %s", buf->buf + pos); |
| |
roffce_lines = 1; |
| |
} |
| |
if (roffce_lines < 1) { |
| |
r->man->last = r->man->last->parent; |
| |
roffce_node = NULL; |
| |
roffce_lines = 0; |
| |
} else |
| |
roffce_node = r->man->last->parent; |
| |
} else { |
| |
n->flags |= NODE_VALID | NODE_ENDED; |
| |
r->man->last = n; |
| |
} |
| |
n->flags |= NODE_LINE; |
| |
r->man->next = ROFF_NEXT_SIBLING; |
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
static int |
| |
roff_manyarg(ROFF_ARGS) |
| |
{ |
| |
struct roff_node *n; |
| |
char *sp, *ep; |
| |
|
| |
roff_elem_alloc(r->man, ln, ppos, tok); |
| |
n = r->man->last; |
| |
|
| |
for (sp = ep = buf->buf + pos; *sp != '\0'; sp = ep) { |
| |
while (*ep != '\0' && *ep != ' ') |
| |
ep++; |
| |
while (*ep == ' ') |
| |
*ep++ = '\0'; |
| |
roff_word_alloc(r->man, ln, sp - buf->buf, sp); |
| |
} |
| |
|
| |
n->flags |= NODE_LINE | NODE_VALID | NODE_ENDED; |
| |
r->man->last = n; |
| |
r->man->next = ROFF_NEXT_SIBLING; |
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
static int |
| |
roff_als(ROFF_ARGS) |
| |
{ |
| |
char *oldn, *newn, *end, *value; |
| |
size_t oldsz, newsz, valsz; |
| |
|
| |
newn = oldn = buf->buf + pos; |
| |
if (*newn == '\0') |
| |
return ROFF_IGN; |
| |
|
| |
newsz = roff_getname(r, &oldn, ln, pos); |
| |
if (newn[newsz] == '\\' || newn[newsz] == '\t' || *oldn == '\0') |
| |
return ROFF_IGN; |
| |
|
| |
end = oldn; |
| |
oldsz = roff_getname(r, &end, ln, oldn - buf->buf); |
| |
if (oldsz == 0) |
| |
return ROFF_IGN; |
| |
|
| |
valsz = mandoc_asprintf(&value, ".%.*s \\$@\\\"\n", |
| |
(int)oldsz, oldn); |
| |
roff_setstrn(&r->strtab, newn, newsz, value, valsz, 0); |
| |
roff_setstrn(&r->rentab, newn, newsz, NULL, 0, 0); |
| |
free(value); |
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
/* |
| |
* The .break request only makes sense inside conditionals, |
| |
* and that case is already handled in roff_cond_sub(). |
| |
*/ |
| |
static int |
| |
roff_break(ROFF_ARGS) |
| |
{ |
| |
mandoc_msg(MANDOCERR_BLK_NOTOPEN, ln, pos, "break"); |
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
static int |
| |
roff_cc(ROFF_ARGS) |
| |
{ |
| |
const char *p; |
| |
|
| |
p = buf->buf + pos; |
| |
|
| |
if (*p == '\0' || (r->control = *p++) == '.') |
| |
r->control = '\0'; |
| |
|
| |
if (*p != '\0') |
| |
mandoc_msg(MANDOCERR_ARG_EXCESS, |
| |
ln, p - buf->buf, "cc ... %s", p); |
| |
|
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
static int |
| |
roff_char(ROFF_ARGS) |
| |
{ |
| |
const char *p, *kp, *vp; |
| |
size_t ksz, vsz; |
| |
int font; |
| |
|
| |
/* Parse the character to be replaced. */ |
| |
|
| |
kp = buf->buf + pos; |
| |
p = kp + 1; |
| |
if (*kp == '\0' || (*kp == '\\' && |
| |
mandoc_escape(&p, NULL, NULL) != ESCAPE_SPECIAL) || |
| |
(*p != ' ' && *p != '\0')) { |
| |
mandoc_msg(MANDOCERR_CHAR_ARG, ln, pos, "char %s", kp); |
| |
return ROFF_IGN; |
| |
} |
| |
ksz = p - kp; |
| |
while (*p == ' ') |
| |
p++; |
| |
|
| |
/* |
| |
* If the replacement string contains a font escape sequence, |
| |
* we have to restore the font at the end. |
| |
*/ |
| |
|
| |
vp = p; |
| |
vsz = strlen(p); |
| |
font = 0; |
| |
while (*p != '\0') { |
| |
if (*p++ != '\\') |
| |
continue; |
| |
switch (mandoc_escape(&p, NULL, NULL)) { |
| |
case ESCAPE_FONT: |
| |
case ESCAPE_FONTROMAN: |
| |
case ESCAPE_FONTITALIC: |
| |
case ESCAPE_FONTBOLD: |
| |
case ESCAPE_FONTBI: |
| |
case ESCAPE_FONTCR: |
| |
case ESCAPE_FONTCB: |
| |
case ESCAPE_FONTCI: |
| |
case ESCAPE_FONTPREV: |
| |
font++; |
| |
break; |
| |
default: |
| |
break; |
| |
} |
| |
} |
| |
if (font > 1) |
| |
mandoc_msg(MANDOCERR_CHAR_FONT, |
| |
ln, (int)(vp - buf->buf), "%s", vp); |
| |
|
| |
/* |
| |
* Approximate the effect of .char using the .tr tables. |
| |
* XXX In groff, .char and .tr interact differently. |
| |
*/ |
| |
|
| |
if (ksz == 1) { |
| |
if (r->xtab == NULL) |
| |
r->xtab = mandoc_calloc(128, sizeof(*r->xtab)); |
| |
assert((unsigned int)*kp < 128); |
| |
free(r->xtab[(int)*kp].p); |
| |
r->xtab[(int)*kp].sz = mandoc_asprintf(&r->xtab[(int)*kp].p, |
| |
"%s%s", vp, font ? "\fP" : ""); |
| |
} else { |
| |
roff_setstrn(&r->xmbtab, kp, ksz, vp, vsz, 0); |
| |
if (font) |
| |
roff_setstrn(&r->xmbtab, kp, ksz, "\\fP", 3, 1); |
| |
} |
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
static int |
| |
roff_ec(ROFF_ARGS) |
| |
{ |
| |
const char *p; |
| |
|
| |
p = buf->buf + pos; |
| |
if (*p == '\0') |
| |
r->escape = '\\'; |
| |
else { |
| |
r->escape = *p; |
| |
if (*++p != '\0') |
| |
mandoc_msg(MANDOCERR_ARG_EXCESS, ln, |
| |
(int)(p - buf->buf), "ec ... %s", p); |
| |
} |
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
static int |
| |
roff_eo(ROFF_ARGS) |
| |
{ |
| |
r->escape = '\0'; |
| |
if (buf->buf[pos] != '\0') |
| |
mandoc_msg(MANDOCERR_ARG_SKIP, |
| |
ln, pos, "eo %s", buf->buf + pos); |
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
static int |
| |
roff_nop(ROFF_ARGS) |
| |
{ |
| |
while (buf->buf[pos] == ' ') |
| |
pos++; |
| |
*offs = pos; |
| |
return ROFF_RERUN; |
| |
} |
| |
|
| |
static int |
| |
roff_tr(ROFF_ARGS) |
| |
{ |
| |
const char *p, *first, *second; |
| |
size_t fsz, ssz; |
| |
enum mandoc_esc esc; |
| |
|
| |
p = buf->buf + pos; |
| |
|
| |
if (*p == '\0') { |
| |
mandoc_msg(MANDOCERR_REQ_EMPTY, ln, ppos, "tr"); |
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
while (*p != '\0') { |
| |
fsz = ssz = 1; |
| |
|
| |
first = p++; |
| |
if (*first == '\\') { |
| |
esc = mandoc_escape(&p, NULL, NULL); |
| |
if (esc == ESCAPE_ERROR) { |
| |
mandoc_msg(MANDOCERR_ESC_BAD, ln, |
| |
(int)(p - buf->buf), "%s", first); |
| |
return ROFF_IGN; |
| |
} |
| |
fsz = (size_t)(p - first); |
| |
} |
| |
|
| |
second = p++; |
| |
if (*second == '\\') { |
| |
esc = mandoc_escape(&p, NULL, NULL); |
| |
if (esc == ESCAPE_ERROR) { |
| |
mandoc_msg(MANDOCERR_ESC_BAD, ln, |
| |
(int)(p - buf->buf), "%s", second); |
| |
return ROFF_IGN; |
| |
} |
| |
ssz = (size_t)(p - second); |
| |
} else if (*second == '\0') { |
| |
mandoc_msg(MANDOCERR_TR_ODD, ln, |
| |
(int)(first - buf->buf), "tr %s", first); |
| |
second = " "; |
| |
p--; |
| |
} |
| |
|
| |
if (fsz > 1) { |
| |
roff_setstrn(&r->xmbtab, first, fsz, |
| |
second, ssz, 0); |
| |
continue; |
| |
} |
| |
|
| |
if (r->xtab == NULL) |
| |
r->xtab = mandoc_calloc(128, |
| |
sizeof(struct roffstr)); |
| |
|
| |
free(r->xtab[(int)*first].p); |
| |
r->xtab[(int)*first].p = mandoc_strndup(second, ssz); |
| |
r->xtab[(int)*first].sz = ssz; |
| |
} |
| |
|
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
/* |
| |
* Implementation of the .return request. |
| |
* There is no need to call roff_userret() from here. |
| |
* The read module will call that after rewinding the reader stack |
| |
* to the place from where the current macro was called. |
| |
*/ |
| |
static int |
| |
roff_return(ROFF_ARGS) |
| |
{ |
| |
if (r->mstackpos >= 0) |
| |
return ROFF_IGN | ROFF_USERRET; |
| |
|
| |
mandoc_msg(MANDOCERR_REQ_NOMAC, ln, ppos, "return"); |
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
static int |
| |
roff_rn(ROFF_ARGS) |
| |
{ |
| |
const char *value; |
| |
char *oldn, *newn, *end; |
| |
size_t oldsz, newsz; |
| |
int deftype; |
| |
|
| |
oldn = newn = buf->buf + pos; |
| |
if (*oldn == '\0') |
| |
return ROFF_IGN; |
| |
|
| |
oldsz = roff_getname(r, &newn, ln, pos); |
| |
if (oldn[oldsz] == '\\' || oldn[oldsz] == '\t' || *newn == '\0') |
| |
return ROFF_IGN; |
| |
|
| |
end = newn; |
| |
newsz = roff_getname(r, &end, ln, newn - buf->buf); |
| |
if (newsz == 0) |
| |
return ROFF_IGN; |
| |
|
| |
deftype = ROFFDEF_ANY; |
| |
value = roff_getstrn(r, oldn, oldsz, &deftype); |
| |
switch (deftype) { |
| |
case ROFFDEF_USER: |
| |
roff_setstrn(&r->strtab, newn, newsz, value, strlen(value), 0); |
| |
roff_setstrn(&r->strtab, oldn, oldsz, NULL, 0, 0); |
| |
roff_setstrn(&r->rentab, newn, newsz, NULL, 0, 0); |
| |
break; |
| |
case ROFFDEF_PRE: |
| |
roff_setstrn(&r->strtab, newn, newsz, value, strlen(value), 0); |
| |
roff_setstrn(&r->rentab, newn, newsz, NULL, 0, 0); |
| |
break; |
| |
case ROFFDEF_REN: |
| |
roff_setstrn(&r->rentab, newn, newsz, value, strlen(value), 0); |
| |
roff_setstrn(&r->rentab, oldn, oldsz, NULL, 0, 0); |
| |
roff_setstrn(&r->strtab, newn, newsz, NULL, 0, 0); |
| |
break; |
| |
case ROFFDEF_STD: |
| |
roff_setstrn(&r->rentab, newn, newsz, oldn, oldsz, 0); |
| |
roff_setstrn(&r->strtab, newn, newsz, NULL, 0, 0); |
| |
break; |
| |
default: |
| |
roff_setstrn(&r->strtab, newn, newsz, NULL, 0, 0); |
| |
roff_setstrn(&r->rentab, newn, newsz, NULL, 0, 0); |
| |
break; |
| |
} |
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
static int |
| |
roff_shift(ROFF_ARGS) |
| |
{ |
| |
struct mctx *ctx; |
| |
int argpos, levels, i; |
| |
|
| |
argpos = pos; |
| |
levels = 1; |
| |
if (buf->buf[pos] != '\0' && |
| |
roff_evalnum(r, ln, buf->buf, &pos, &levels, 0) == 0) { |
| |
mandoc_msg(MANDOCERR_CE_NONUM, |
| |
ln, pos, "shift %s", buf->buf + pos); |
| |
levels = 1; |
| |
} |
| |
if (r->mstackpos < 0) { |
| |
mandoc_msg(MANDOCERR_REQ_NOMAC, ln, ppos, "shift"); |
| |
return ROFF_IGN; |
| |
} |
| |
ctx = r->mstack + r->mstackpos; |
| |
if (levels > ctx->argc) { |
| |
mandoc_msg(MANDOCERR_SHIFT, |
| |
ln, argpos, "%d, but max is %d", levels, ctx->argc); |
| |
levels = ctx->argc; |
| |
} |
| |
if (levels < 0) { |
| |
mandoc_msg(MANDOCERR_ARG_NEG, ln, argpos, "shift %d", levels); |
| |
levels = 0; |
| |
} |
| |
if (levels == 0) |
| |
return ROFF_IGN; |
| |
for (i = 0; i < levels; i++) |
| |
free(ctx->argv[i]); |
| |
ctx->argc -= levels; |
| |
for (i = 0; i < ctx->argc; i++) |
| |
ctx->argv[i] = ctx->argv[i + levels]; |
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
static int |
| roff_so(ROFF_ARGS) |
roff_so(ROFF_ARGS) |
| { |
{ |
| char *name; |
char *name, *cp; |
| |
|
| (*r->msg)(MANDOCERR_SO, r->data, ln, ppos, NULL); |
name = buf->buf + pos; |
| |
mandoc_msg(MANDOCERR_SO, ln, ppos, "so %s", name); |
| |
|
| /* |
/* |
| * Handle `so'. Be EXTREMELY careful, as we shouldn't be |
* Handle `so'. Be EXTREMELY careful, as we shouldn't be |
| Line 1072 roff_so(ROFF_ARGS) |
|
| Line 3921 roff_so(ROFF_ARGS) |
|
| * or using absolute paths. |
* or using absolute paths. |
| */ |
*/ |
| |
|
| name = *bufp + pos; |
if (*name == '/' || strstr(name, "../") || strstr(name, "/..")) { |
| if ('/' == *name || strstr(name, "../") || strstr(name, "/..")) { |
mandoc_msg(MANDOCERR_SO_PATH, ln, ppos, ".so %s", name); |
| (*r->msg)(MANDOCERR_SOPATH, r->data, ln, pos, NULL); |
buf->sz = mandoc_asprintf(&cp, |
| return(ROFF_ERR); |
".sp\nSee the file %s.\n.sp", name) + 1; |
| |
free(buf->buf); |
| |
buf->buf = cp; |
| |
*offs = 0; |
| |
return ROFF_REPARSE; |
| } |
} |
| |
|
| *offs = pos; |
*offs = pos; |
| return(ROFF_SO); |
return ROFF_SO; |
| } |
} |
| |
|
| static char * |
/* --- user defined strings and macros ------------------------------------ */ |
| roff_strdup(const char *name) |
|
| |
static int |
| |
roff_userdef(ROFF_ARGS) |
| { |
{ |
| char *namecopy, *sv; |
struct mctx *ctx; |
| |
char *arg, *ap, *dst, *src; |
| |
size_t sz; |
| |
|
| /* |
/* If the macro is empty, ignore it altogether. */ |
| * This isn't a nice simple mandoc_strdup() because we must |
|
| * handle roff's stupid double-escape rule. |
if (*r->current_string == '\0') |
| |
return ROFF_IGN; |
| |
|
| |
/* Initialize a new macro stack context. */ |
| |
|
| |
if (++r->mstackpos == r->mstacksz) { |
| |
r->mstack = mandoc_recallocarray(r->mstack, |
| |
r->mstacksz, r->mstacksz + 8, sizeof(*r->mstack)); |
| |
r->mstacksz += 8; |
| |
} |
| |
ctx = r->mstack + r->mstackpos; |
| |
ctx->argc = 0; |
| |
|
| |
/* |
| |
* Collect pointers to macro argument strings, |
| |
* NUL-terminating them and escaping quotes. |
| */ |
*/ |
| sv = namecopy = mandoc_malloc(strlen(name) + 1); |
|
| while (*name) { |
src = buf->buf + pos; |
| if ('\\' == *name && '\\' == *(name + 1)) |
while (*src != '\0') { |
| name++; |
if (ctx->argc == ctx->argsz) { |
| *namecopy++ = *name++; |
ctx->argsz += 8; |
| |
ctx->argv = mandoc_reallocarray(ctx->argv, |
| |
ctx->argsz, sizeof(*ctx->argv)); |
| |
} |
| |
arg = roff_getarg(r, &src, ln, &pos); |
| |
sz = 1; /* For the terminating NUL. */ |
| |
for (ap = arg; *ap != '\0'; ap++) |
| |
sz += *ap == '"' ? 4 : 1; |
| |
ctx->argv[ctx->argc++] = dst = mandoc_malloc(sz); |
| |
for (ap = arg; *ap != '\0'; ap++) { |
| |
if (*ap == '"') { |
| |
memcpy(dst, "\\(dq", 4); |
| |
dst += 4; |
| |
} else |
| |
*dst++ = *ap; |
| |
} |
| |
*dst = '\0'; |
| |
free(arg); |
| } |
} |
| |
|
| *namecopy = '\0'; |
/* Replace the macro invocation by the macro definition. */ |
| return(sv); |
|
| |
free(buf->buf); |
| |
buf->buf = mandoc_strdup(r->current_string); |
| |
buf->sz = strlen(buf->buf) + 1; |
| |
*offs = 0; |
| |
|
| |
return buf->buf[buf->sz - 2] == '\n' ? |
| |
ROFF_REPARSE | ROFF_USERCALL : ROFF_IGN | ROFF_APPEND; |
| } |
} |
| |
|
| |
/* |
| |
* Calling a high-level macro that was renamed with .rn. |
| |
* r->current_string has already been set up by roff_parse(). |
| |
*/ |
| |
static int |
| |
roff_renamed(ROFF_ARGS) |
| |
{ |
| |
char *nbuf; |
| |
|
| |
buf->sz = mandoc_asprintf(&nbuf, ".%s%s%s", r->current_string, |
| |
buf->buf[pos] == '\0' ? "" : " ", buf->buf + pos) + 1; |
| |
free(buf->buf); |
| |
buf->buf = nbuf; |
| |
*offs = 0; |
| |
return ROFF_CONT; |
| |
} |
| |
|
| |
/* |
| |
* Measure the length in bytes of the roff identifier at *cpp |
| |
* and advance the pointer to the next word. |
| |
*/ |
| |
static size_t |
| |
roff_getname(struct roff *r, char **cpp, int ln, int pos) |
| |
{ |
| |
char *name, *cp; |
| |
size_t namesz; |
| |
|
| |
name = *cpp; |
| |
if (*name == '\0') |
| |
return 0; |
| |
|
| |
/* Advance cp to the byte after the end of the name. */ |
| |
|
| |
for (cp = name; 1; cp++) { |
| |
namesz = cp - name; |
| |
if (*cp == '\0') |
| |
break; |
| |
if (*cp == ' ' || *cp == '\t') { |
| |
cp++; |
| |
break; |
| |
} |
| |
if (*cp != '\\') |
| |
continue; |
| |
if (cp[1] == '{' || cp[1] == '}') |
| |
break; |
| |
if (*++cp == '\\') |
| |
continue; |
| |
mandoc_msg(MANDOCERR_NAMESC, ln, pos, |
| |
"%.*s", (int)(cp - name + 1), name); |
| |
mandoc_escape((const char **)&cp, NULL, NULL); |
| |
break; |
| |
} |
| |
|
| |
/* Read past spaces. */ |
| |
|
| |
while (*cp == ' ') |
| |
cp++; |
| |
|
| |
*cpp = cp; |
| |
return namesz; |
| |
} |
| |
|
| |
/* |
| |
* Store *string into the user-defined string called *name. |
| |
* To clear an existing entry, call with (*r, *name, NULL, 0). |
| |
* append == 0: replace mode |
| |
* append == 1: single-line append mode |
| |
* append == 2: multiline append mode, append '\n' after each call |
| |
*/ |
| static void |
static void |
| roff_setstr(struct roff *r, const char *name, const char *string) |
roff_setstr(struct roff *r, const char *name, const char *string, |
| |
int append) |
| { |
{ |
| struct roffstr *n; |
size_t namesz; |
| char *namecopy; |
|
| |
|
| n = r->first_string; |
namesz = strlen(name); |
| while (n && strcmp(name, n->name)) |
roff_setstrn(&r->strtab, name, namesz, string, |
| |
string ? strlen(string) : 0, append); |
| |
roff_setstrn(&r->rentab, name, namesz, NULL, 0, 0); |
| |
} |
| |
|
| |
static void |
| |
roff_setstrn(struct roffkv **r, const char *name, size_t namesz, |
| |
const char *string, size_t stringsz, int append) |
| |
{ |
| |
struct roffkv *n; |
| |
char *c; |
| |
int i; |
| |
size_t oldch, newch; |
| |
|
| |
/* Search for an existing string with the same name. */ |
| |
n = *r; |
| |
|
| |
while (n && (namesz != n->key.sz || |
| |
strncmp(n->key.p, name, namesz))) |
| n = n->next; |
n = n->next; |
| |
|
| if (NULL == n) { |
if (NULL == n) { |
| namecopy = mandoc_strdup(name); |
/* Create a new string table entry. */ |
| n = mandoc_malloc(sizeof(struct roffstr)); |
n = mandoc_malloc(sizeof(struct roffkv)); |
| n->name = namecopy; |
n->key.p = mandoc_strndup(name, namesz); |
| n->next = r->first_string; |
n->key.sz = namesz; |
| r->first_string = n; |
n->val.p = NULL; |
| } else |
n->val.sz = 0; |
| free(n->string); |
n->next = *r; |
| |
*r = n; |
| |
} else if (0 == append) { |
| |
free(n->val.p); |
| |
n->val.p = NULL; |
| |
n->val.sz = 0; |
| |
} |
| |
|
| /* Don't use mandoc_strdup: clean out double-escapes. */ |
if (NULL == string) |
| n->string = string ? roff_strdup(string) : NULL; |
return; |
| ROFF_DEBUG("roff: new symbol: [%s] = [%s]\n", name, n->string); |
|
| } |
|
| |
|
| |
/* |
| |
* One additional byte for the '\n' in multiline mode, |
| |
* and one for the terminating '\0'. |
| |
*/ |
| |
newch = stringsz + (1 < append ? 2u : 1u); |
| |
|
| |
if (NULL == n->val.p) { |
| |
n->val.p = mandoc_malloc(newch); |
| |
*n->val.p = '\0'; |
| |
oldch = 0; |
| |
} else { |
| |
oldch = n->val.sz; |
| |
n->val.p = mandoc_realloc(n->val.p, oldch + newch); |
| |
} |
| |
|
| |
/* Skip existing content in the destination buffer. */ |
| |
c = n->val.p + (int)oldch; |
| |
|
| |
/* Append new content to the destination buffer. */ |
| |
i = 0; |
| |
while (i < (int)stringsz) { |
| |
/* |
| |
* Rudimentary roff copy mode: |
| |
* Handle escaped backslashes. |
| |
*/ |
| |
if ('\\' == string[i] && '\\' == string[i + 1]) |
| |
i++; |
| |
*c++ = string[i++]; |
| |
} |
| |
|
| |
/* Append terminating bytes. */ |
| |
if (1 < append) |
| |
*c++ = '\n'; |
| |
|
| |
*c = '\0'; |
| |
n->val.sz = (int)(c - n->val.p); |
| |
} |
| |
|
| static const char * |
static const char * |
| roff_getstrn(const struct roff *r, const char *name, size_t len) |
roff_getstrn(struct roff *r, const char *name, size_t len, |
| |
int *deftype) |
| { |
{ |
| const struct roffstr *n; |
const struct roffkv *n; |
| |
int found, i; |
| |
enum roff_tok tok; |
| |
|
| n = r->first_string; |
found = 0; |
| while (n && (strncmp(name, n->name, len) || '\0' != n->name[(int)len])) |
for (n = r->strtab; n != NULL; n = n->next) { |
| n = n->next; |
if (strncmp(name, n->key.p, len) != 0 || |
| |
n->key.p[len] != '\0' || n->val.p == NULL) |
| |
continue; |
| |
if (*deftype & ROFFDEF_USER) { |
| |
*deftype = ROFFDEF_USER; |
| |
return n->val.p; |
| |
} else { |
| |
found = 1; |
| |
break; |
| |
} |
| |
} |
| |
for (n = r->rentab; n != NULL; n = n->next) { |
| |
if (strncmp(name, n->key.p, len) != 0 || |
| |
n->key.p[len] != '\0' || n->val.p == NULL) |
| |
continue; |
| |
if (*deftype & ROFFDEF_REN) { |
| |
*deftype = ROFFDEF_REN; |
| |
return n->val.p; |
| |
} else { |
| |
found = 1; |
| |
break; |
| |
} |
| |
} |
| |
for (i = 0; i < PREDEFS_MAX; i++) { |
| |
if (strncmp(name, predefs[i].name, len) != 0 || |
| |
predefs[i].name[len] != '\0') |
| |
continue; |
| |
if (*deftype & ROFFDEF_PRE) { |
| |
*deftype = ROFFDEF_PRE; |
| |
return predefs[i].str; |
| |
} else { |
| |
found = 1; |
| |
break; |
| |
} |
| |
} |
| |
if (r->man->meta.macroset != MACROSET_MAN) { |
| |
for (tok = MDOC_Dd; tok < MDOC_MAX; tok++) { |
| |
if (strncmp(name, roff_name[tok], len) != 0 || |
| |
roff_name[tok][len] != '\0') |
| |
continue; |
| |
if (*deftype & ROFFDEF_STD) { |
| |
*deftype = ROFFDEF_STD; |
| |
return NULL; |
| |
} else { |
| |
found = 1; |
| |
break; |
| |
} |
| |
} |
| |
} |
| |
if (r->man->meta.macroset != MACROSET_MDOC) { |
| |
for (tok = MAN_TH; tok < MAN_MAX; tok++) { |
| |
if (strncmp(name, roff_name[tok], len) != 0 || |
| |
roff_name[tok][len] != '\0') |
| |
continue; |
| |
if (*deftype & ROFFDEF_STD) { |
| |
*deftype = ROFFDEF_STD; |
| |
return NULL; |
| |
} else { |
| |
found = 1; |
| |
break; |
| |
} |
| |
} |
| |
} |
| |
|
| return(n ? n->string : NULL); |
if (found == 0 && *deftype != ROFFDEF_ANY) { |
| } |
if (*deftype & ROFFDEF_REN) { |
| |
/* |
| |
* This might still be a request, |
| |
* so do not treat it as undefined yet. |
| |
*/ |
| |
*deftype = ROFFDEF_UNDEF; |
| |
return NULL; |
| |
} |
| |
|
| |
/* Using an undefined string defines it to be empty. */ |
| |
|
| |
roff_setstrn(&r->strtab, name, len, "", 0, 0); |
| |
roff_setstrn(&r->rentab, name, len, NULL, 0, 0); |
| |
} |
| |
|
| |
*deftype = 0; |
| |
return NULL; |
| |
} |
| |
|
| static void |
static void |
| roff_freestr(struct roff *r) |
roff_freestr(struct roffkv *r) |
| { |
{ |
| struct roffstr *n, *nn; |
struct roffkv *n, *nn; |
| |
|
| for (n = r->first_string; n; n = nn) { |
for (n = r; n; n = nn) { |
| free(n->name); |
free(n->key.p); |
| free(n->string); |
free(n->val.p); |
| nn = n->next; |
nn = n->next; |
| free(n); |
free(n); |
| } |
} |
| |
} |
| |
|
| r->first_string = NULL; |
/* --- accessors and utility functions ------------------------------------ */ |
| |
|
| |
/* |
| |
* Duplicate an input string, making the appropriate character |
| |
* conversations (as stipulated by `tr') along the way. |
| |
* Returns a heap-allocated string with all the replacements made. |
| |
*/ |
| |
char * |
| |
roff_strdup(const struct roff *r, const char *p) |
| |
{ |
| |
const struct roffkv *cp; |
| |
char *res; |
| |
const char *pp; |
| |
size_t ssz, sz; |
| |
enum mandoc_esc esc; |
| |
|
| |
if (NULL == r->xmbtab && NULL == r->xtab) |
| |
return mandoc_strdup(p); |
| |
else if ('\0' == *p) |
| |
return mandoc_strdup(""); |
| |
|
| |
/* |
| |
* Step through each character looking for term matches |
| |
* (remember that a `tr' can be invoked with an escape, which is |
| |
* a glyph but the escape is multi-character). |
| |
* We only do this if the character hash has been initialised |
| |
* and the string is >0 length. |
| |
*/ |
| |
|
| |
res = NULL; |
| |
ssz = 0; |
| |
|
| |
while ('\0' != *p) { |
| |
assert((unsigned int)*p < 128); |
| |
if ('\\' != *p && r->xtab && r->xtab[(unsigned int)*p].p) { |
| |
sz = r->xtab[(int)*p].sz; |
| |
res = mandoc_realloc(res, ssz + sz + 1); |
| |
memcpy(res + ssz, r->xtab[(int)*p].p, sz); |
| |
ssz += sz; |
| |
p++; |
| |
continue; |
| |
} else if ('\\' != *p) { |
| |
res = mandoc_realloc(res, ssz + 2); |
| |
res[ssz++] = *p++; |
| |
continue; |
| |
} |
| |
|
| |
/* Search for term matches. */ |
| |
for (cp = r->xmbtab; cp; cp = cp->next) |
| |
if (0 == strncmp(p, cp->key.p, cp->key.sz)) |
| |
break; |
| |
|
| |
if (NULL != cp) { |
| |
/* |
| |
* A match has been found. |
| |
* Append the match to the array and move |
| |
* forward by its keysize. |
| |
*/ |
| |
res = mandoc_realloc(res, |
| |
ssz + cp->val.sz + 1); |
| |
memcpy(res + ssz, cp->val.p, cp->val.sz); |
| |
ssz += cp->val.sz; |
| |
p += (int)cp->key.sz; |
| |
continue; |
| |
} |
| |
|
| |
/* |
| |
* Handle escapes carefully: we need to copy |
| |
* over just the escape itself, or else we might |
| |
* do replacements within the escape itself. |
| |
* Make sure to pass along the bogus string. |
| |
*/ |
| |
pp = p++; |
| |
esc = mandoc_escape(&p, NULL, NULL); |
| |
if (ESCAPE_ERROR == esc) { |
| |
sz = strlen(pp); |
| |
res = mandoc_realloc(res, ssz + sz + 1); |
| |
memcpy(res + ssz, pp, sz); |
| |
break; |
| |
} |
| |
/* |
| |
* We bail out on bad escapes. |
| |
* No need to warn: we already did so when |
| |
* roff_expand() was called. |
| |
*/ |
| |
sz = (int)(p - pp); |
| |
res = mandoc_realloc(res, ssz + sz + 1); |
| |
memcpy(res + ssz, pp, sz); |
| |
ssz += sz; |
| |
} |
| |
|
| |
res[(int)ssz] = '\0'; |
| |
return res; |
| |
} |
| |
|
| |
int |
| |
roff_getformat(const struct roff *r) |
| |
{ |
| |
|
| |
return r->format; |
| |
} |
| |
|
| |
/* |
| |
* Find out whether a line is a macro line or not. |
| |
* If it is, adjust the current position and return one; if it isn't, |
| |
* return zero and don't change the current position. |
| |
* If the control character has been set with `.cc', then let that grain |
| |
* precedence. |
| |
* This is slighly contrary to groff, where using the non-breaking |
| |
* control character when `cc' has been invoked will cause the |
| |
* non-breaking macro contents to be printed verbatim. |
| |
*/ |
| |
int |
| |
roff_getcontrol(const struct roff *r, const char *cp, int *ppos) |
| |
{ |
| |
int pos; |
| |
|
| |
pos = *ppos; |
| |
|
| |
if (r->control != '\0' && cp[pos] == r->control) |
| |
pos++; |
| |
else if (r->control != '\0') |
| |
return 0; |
| |
else if ('\\' == cp[pos] && '.' == cp[pos + 1]) |
| |
pos += 2; |
| |
else if ('.' == cp[pos] || '\'' == cp[pos]) |
| |
pos++; |
| |
else |
| |
return 0; |
| |
|
| |
while (' ' == cp[pos] || '\t' == cp[pos]) |
| |
pos++; |
| |
|
| |
*ppos = pos; |
| |
return 1; |
| } |
} |
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