| version 1.2, 2008/11/24 18:32:39 |
version 1.300, 2017/05/07 17:31:45 |
|
|
| /* $Id$ */ |
/* $Id$ */ |
| /* |
/* |
| * Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se> |
* Copyright (c) 2008-2012, 2014 Kristaps Dzonsons <kristaps@bsd.lv> |
| |
* Copyright (c) 2010-2015, 2017 Ingo Schwarze <schwarze@openbsd.org> |
| * |
* |
| * 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 |
* purpose with or without fee is hereby granted, provided that the above |
| * above copyright notice and this permission notice appear in all |
* copyright notice and this permission notice appear in all copies. |
| * copies. |
|
| * |
* |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES |
| * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR |
| * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| * PERFORMANCE OF THIS SOFTWARE. |
|
| */ |
*/ |
| |
#include "config.h" |
| |
|
| |
#include <sys/types.h> |
| |
|
| #include <assert.h> |
#include <assert.h> |
| #include <ctype.h> |
#include <ctype.h> |
| #include <err.h> |
#include <limits.h> |
| #include <stdlib.h> |
#include <stddef.h> |
| |
#include <stdint.h> |
| #include <stdio.h> |
#include <stdio.h> |
| |
#include <stdlib.h> |
| #include <string.h> |
#include <string.h> |
| #include <time.h> |
|
| |
|
| #include "libmdocml.h" |
#include "mandoc.h" |
| #include "private.h" |
#include "mandoc_aux.h" |
| |
#include "mandoc_ohash.h" |
| |
#include "roff.h" |
| |
#include "libmandoc.h" |
| |
#include "roff_int.h" |
| |
#include "libroff.h" |
| |
|
| #define ROFF_MAXARG 10 |
/* Maximum number of string expansions per line, to break infinite loops. */ |
| |
#define EXPAND_LIMIT 1000 |
| |
|
| enum roffd { |
/* --- data types --------------------------------------------------------- */ |
| ROFF_ENTER = 0, |
|
| ROFF_EXIT |
/* |
| |
* An incredibly-simple string buffer. |
| |
*/ |
| |
struct roffstr { |
| |
char *p; /* nil-terminated buffer */ |
| |
size_t sz; /* saved strlen(p) */ |
| }; |
}; |
| |
|
| enum rofftype { |
/* |
| ROFF_TITLE, |
* A key-value roffstr pair as part of a singly-linked list. |
| ROFF_COMMENT, |
*/ |
| ROFF_TEXT, |
struct roffkv { |
| ROFF_LAYOUT |
struct roffstr key; |
| |
struct roffstr val; |
| |
struct roffkv *next; /* next in list */ |
| }; |
}; |
| |
|
| #define ROFFCALL_ARGS \ |
/* |
| int tok, struct rofftree *tree, \ |
* A single number register as part of a singly-linked list. |
| const char *argv[], enum roffd type |
*/ |
| |
struct roffreg { |
| |
struct roffstr key; |
| |
int val; |
| |
struct roffreg *next; |
| |
}; |
| |
|
| struct rofftree; |
/* |
| |
* Association of request and macro names with token IDs. |
| struct rofftok { |
*/ |
| char *name; |
struct roffreq { |
| int (*cb)(ROFFCALL_ARGS); |
enum roff_tok tok; |
| enum rofftype type; |
char name[]; |
| int flags; |
|
| #define ROFF_NESTED (1 << 0) |
|
| #define ROFF_PARSED (1 << 1) |
|
| #define ROFF_CALLABLE (1 << 2) |
|
| #define ROFF_QUOTES (1 << 3) |
|
| }; |
}; |
| |
|
| struct roffarg { |
struct roff { |
| char *name; |
struct mparse *parse; /* parse point */ |
| int flags; |
struct roff_man *man; /* mdoc or man parser */ |
| #define ROFF_VALUE (1 << 0) |
struct roffnode *last; /* leaf of stack */ |
| |
int *rstack; /* stack of inverted `ie' values */ |
| |
struct ohash *reqtab; /* request lookup table */ |
| |
struct roffreg *regtab; /* number registers */ |
| |
struct roffkv *strtab; /* user-defined 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; /* last equation parsed */ |
| |
struct eqn_node *first_eqn; /* first equation parsed */ |
| |
struct eqn_node *eqn; /* current equation being parsed */ |
| |
int eqn_inline; /* current equation is inline */ |
| |
int options; /* parse options */ |
| |
int rstacksz; /* current size limit of rstack */ |
| |
int rstackpos; /* position in rstack */ |
| |
int format; /* current file in mdoc or man format */ |
| |
int argc; /* number of args of the last macro */ |
| |
char control; /* control character */ |
| }; |
}; |
| |
|
| struct roffnode { |
struct roffnode { |
| int tok; |
enum roff_tok tok; /* type of node */ |
| struct roffnode *parent; |
struct roffnode *parent; /* up one in stack */ |
| size_t line; |
int line; /* parse line */ |
| |
int col; /* parse col */ |
| |
char *name; /* node name, e.g. macro name */ |
| |
char *end; /* end-rules: custom token */ |
| |
int endspan; /* end-rules: next-line or infty */ |
| |
int rule; /* current evaluation rule */ |
| }; |
}; |
| |
|
| struct rofftree { |
#define ROFF_ARGS struct roff *r, /* parse ctx */ \ |
| struct roffnode *last; |
enum roff_tok tok, /* tok of macro */ \ |
| time_t date; |
struct buf *buf, /* input buffer */ \ |
| char title[256]; |
int ln, /* parse line */ \ |
| char section[256]; |
int ppos, /* original pos in buffer */ \ |
| char volume[256]; |
int pos, /* current pos in buffer */ \ |
| int state; |
int *offs /* reset offset of buffer data */ |
| #define ROFF_PRELUDE (1 << 1) |
|
| #define ROFF_PRELUDE_Os (1 << 2) |
|
| #define ROFF_PRELUDE_Dt (1 << 3) |
|
| #define ROFF_PRELUDE_Dd (1 << 4) |
|
| #define ROFF_BODY (1 << 5) |
|
| struct md_mbuf *mbuf; /* NULL if ROFF_EXIT and error. */ |
|
| |
|
| const struct md_args *args; |
typedef enum rofferr (*roffproc)(ROFF_ARGS); |
| const struct md_rbuf *rbuf; |
|
| const roffin *roffin; |
struct roffmac { |
| const roffblkin *roffblkin; |
roffproc proc; /* process new macro */ |
| const roffout *roffout; |
roffproc text; /* process as child text of macro */ |
| const roffblkout *roffblkout; |
roffproc sub; /* process as child of macro */ |
| |
int flags; |
| |
#define ROFFMAC_STRUCT (1 << 0) /* always interpret */ |
| }; |
}; |
| |
|
| static int roff_Dd(ROFFCALL_ARGS); |
struct predef { |
| static int roff_Dt(ROFFCALL_ARGS); |
const char *name; /* predefined input name */ |
| static int roff_Os(ROFFCALL_ARGS); |
const char *str; /* replacement symbol */ |
| |
}; |
| |
|
| static int roff_layout(ROFFCALL_ARGS); |
#define PREDEF(__name, __str) \ |
| static int roff_text(ROFFCALL_ARGS); |
{ (__name), (__str) }, |
| |
|
| static struct roffnode *roffnode_new(int, size_t, |
/* --- function prototypes ------------------------------------------------ */ |
| struct rofftree *); |
|
| static void roffnode_free(int, struct rofftree *); |
|
| |
|
| static int rofffindtok(const char *); |
static void roffnode_cleanscope(struct roff *); |
| static int rofffindarg(const char *); |
static void roffnode_pop(struct roff *); |
| static int rofffindcallable(const char *); |
static void roffnode_push(struct roff *, enum roff_tok, |
| static int roffargs(int, char *, char **); |
const char *, int, int); |
| static int roffparse(struct rofftree *, char *, size_t); |
static enum rofferr roff_block(ROFF_ARGS); |
| static int textparse(const struct rofftree *, |
static enum rofferr roff_block_text(ROFF_ARGS); |
| |
static enum rofferr roff_block_sub(ROFF_ARGS); |
| |
static enum rofferr roff_br(ROFF_ARGS); |
| |
static enum rofferr roff_cblock(ROFF_ARGS); |
| |
static enum rofferr roff_cc(ROFF_ARGS); |
| |
static void roff_ccond(struct roff *, int, int); |
| |
static enum rofferr roff_cond(ROFF_ARGS); |
| |
static enum rofferr roff_cond_text(ROFF_ARGS); |
| |
static enum rofferr roff_cond_sub(ROFF_ARGS); |
| |
static enum rofferr roff_ds(ROFF_ARGS); |
| |
static enum rofferr roff_eqndelim(struct roff *, struct buf *, int); |
| |
static int roff_evalcond(struct roff *r, 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 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(const struct roff *, |
| const char *, size_t); |
const char *, size_t); |
| |
static int roff_getregro(const struct roff *, |
| |
const char *name); |
| |
static const char *roff_getstrn(const struct roff *, |
| |
const char *, size_t); |
| |
static int roff_hasregn(const struct roff *, |
| |
const char *, size_t); |
| |
static enum rofferr roff_insec(ROFF_ARGS); |
| |
static enum rofferr roff_it(ROFF_ARGS); |
| |
static enum rofferr roff_line_ignore(ROFF_ARGS); |
| |
static void roff_man_alloc1(struct roff_man *); |
| |
static void roff_man_free1(struct roff_man *); |
| |
static enum rofferr roff_manyarg(ROFF_ARGS); |
| |
static enum rofferr roff_nr(ROFF_ARGS); |
| |
static enum rofferr roff_onearg(ROFF_ARGS); |
| |
static enum roff_tok roff_parse(struct roff *, char *, int *, |
| |
int, int); |
| |
static enum rofferr roff_parsetext(struct buf *, int, int *); |
| |
static enum rofferr roff_res(struct roff *, struct buf *, int, int); |
| |
static enum rofferr roff_rm(ROFF_ARGS); |
| |
static enum rofferr roff_rr(ROFF_ARGS); |
| |
static void roff_setstr(struct roff *, |
| |
const char *, const char *, int); |
| |
static void roff_setstrn(struct roffkv **, const char *, |
| |
size_t, const char *, size_t, int); |
| |
static enum rofferr roff_so(ROFF_ARGS); |
| |
static enum rofferr roff_tr(ROFF_ARGS); |
| |
static enum rofferr roff_Dd(ROFF_ARGS); |
| |
static enum rofferr roff_TH(ROFF_ARGS); |
| |
static enum rofferr roff_TE(ROFF_ARGS); |
| |
static enum rofferr roff_TS(ROFF_ARGS); |
| |
static enum rofferr roff_EQ(ROFF_ARGS); |
| |
static enum rofferr roff_EN(ROFF_ARGS); |
| |
static enum rofferr roff_T_(ROFF_ARGS); |
| |
static enum rofferr roff_unsupp(ROFF_ARGS); |
| |
static enum rofferr roff_userdef(ROFF_ARGS); |
| |
|
| |
/* --- constant data ------------------------------------------------------ */ |
| |
|
| static const struct rofftok tokens[ROFF_MAX] = { |
#define ROFFNUM_SCALE (1 << 0) /* Honour scaling in roff_getnum(). */ |
| { "\\\"", NULL, ROFF_COMMENT, 0 }, |
#define ROFFNUM_WHITE (1 << 1) /* Skip whitespace in roff_evalnum(). */ |
| { "Dd", roff_Dd, ROFF_TITLE, 0 }, |
|
| { "Dt", roff_Dt, ROFF_TITLE, 0 }, |
const char *__roff_name[MAN_MAX + 1] = { |
| { "Os", roff_Os, ROFF_TITLE, 0 }, |
"br", "ft", "ll", "sp", |
| { "Sh", roff_layout, ROFF_LAYOUT, ROFF_PARSED }, |
"ta", NULL, |
| { "An", roff_text, ROFF_TEXT, ROFF_PARSED }, |
"ab", "ad", "af", "aln", |
| { "Li", roff_text, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, |
"als", "am", "am1", "ami", |
| |
"ami1", "as", "as1", "asciify", |
| |
"backtrace", "bd", "bleedat", "blm", |
| |
"box", "boxa", "bp", "BP", |
| |
"break", "breakchar", "brnl", "brp", |
| |
"brpnl", "c2", "cc", "ce", |
| |
"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", "mc", |
| |
"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", "po", "ps", |
| |
"psbb", "pshape", "pso", "ptr", |
| |
"pvs", "rchar", "rd", "recursionlimit", |
| |
"return", "rfschar", "rhang", "rj", |
| |
"rm", "rn", "rnn", "rr", |
| |
"rs", "rt", "schar", "sentchar", |
| |
"shc", "shift", "sizes", "so", |
| |
"spacewidth", "special", "spreadwarn", "ss", |
| |
"sty", "substring", "sv", "sy", |
| |
"T&", "tc", "TE", |
| |
"TH", "ti", "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, |
| |
"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", |
| |
NULL, |
| |
"TH", "SH", "SS", "TP", |
| |
"LP", "PP", "P", "IP", |
| |
"HP", "SM", "SB", "BI", |
| |
"IB", "BR", "RB", "R", |
| |
"B", "I", "IR", "RI", |
| |
"nf", "fi", |
| |
"RE", "RS", "DT", "UC", |
| |
"PD", "AT", "in", |
| |
"OP", "EX", "EE", "UR", |
| |
"UE", NULL |
| }; |
}; |
| |
const char *const *roff_name = __roff_name; |
| |
|
| static const struct roffarg tokenargs[ROFF_ARGMAX] = { |
static struct roffmac roffs[TOKEN_NONE] = { |
| { "split", 0 }, |
{ roff_br, NULL, NULL, 0 }, /* br */ |
| { "nosplit", 0 }, |
{ roff_onearg, NULL, NULL, 0 }, /* ft */ |
| |
{ roff_onearg, NULL, NULL, 0 }, /* ll */ |
| |
{ roff_onearg, NULL, NULL, 0 }, /* sp */ |
| |
{ roff_manyarg, NULL, NULL, 0 }, /* ta */ |
| |
{ NULL, NULL, NULL, 0 }, /* ROFF_MAX */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* ab */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* ad */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* af */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* aln */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* als */ |
| |
{ roff_block, roff_block_text, roff_block_sub, 0 }, /* am */ |
| |
{ roff_block, roff_block_text, roff_block_sub, 0 }, /* am1 */ |
| |
{ 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_unsupp, NULL, NULL, 0 }, /* break */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* breakchar */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* brnl */ |
| |
{ roff_br, NULL, NULL, 0 }, /* brp */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* brpnl */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* c2 */ |
| |
{ roff_cc, NULL, NULL, 0 }, /* cc */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* ce */ |
| |
{ roff_insec, NULL, NULL, 0 }, /* cf */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* cflags */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* ch */ |
| |
{ roff_unsupp, 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_unsupp, 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_unsupp, 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 }, /* mc */ |
| |
{ 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_unsupp, 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 }, /* po */ |
| |
{ 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_unsupp, NULL, NULL, 0 }, /* return */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* rfschar */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* rhang */ |
| |
{ roff_line_ignore, NULL, NULL, 0 }, /* rj */ |
| |
{ roff_rm, NULL, NULL, 0 }, /* rm */ |
| |
{ roff_unsupp, 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_unsupp, 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_TH, NULL, NULL, 0 }, /* TH */ |
| |
{ roff_unsupp, NULL, NULL, 0 }, /* ti */ |
| |
{ 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_unsupp, NULL, NULL, 0 }, /* 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_userdef, NULL, NULL, 0 } |
| }; |
}; |
| |
|
| |
/* not currently implemented: Ds em Eq LP Me PP pp Or Rd Sf SH */ |
| |
const char *const __mdoc_reserved[] = { |
| |
"Ac", "Ad", "An", "Ao", "Ap", "Aq", "Ar", "At", |
| |
"Bc", "Bd", "Bf", "Bk", "Bl", "Bo", "Bq", |
| |
"Brc", "Bro", "Brq", "Bsx", "Bt", "Bx", |
| |
"Cd", "Cm", "Db", "Dc", "Dd", "Dl", "Do", "Dq", |
| |
"Dt", "Dv", "Dx", "D1", |
| |
"Ec", "Ed", "Ef", "Ek", "El", "Em", |
| |
"En", "Eo", "Er", "Es", "Ev", "Ex", |
| |
"Fa", "Fc", "Fd", "Fl", "Fn", "Fo", "Fr", "Ft", "Fx", |
| |
"Hf", "Ic", "In", "It", "Lb", "Li", "Lk", "Lp", |
| |
"Ms", "Mt", "Nd", "Nm", "No", "Ns", "Nx", |
| |
"Oc", "Oo", "Op", "Os", "Ot", "Ox", |
| |
"Pa", "Pc", "Pf", "Po", "Pp", "Pq", |
| |
"Qc", "Ql", "Qo", "Qq", "Re", "Rs", "Rv", |
| |
"Sc", "Sh", "Sm", "So", "Sq", |
| |
"Ss", "St", "Sx", "Sy", |
| |
"Ta", "Tn", "Ud", "Ux", "Va", "Vt", "Xc", "Xo", "Xr", |
| |
"%A", "%B", "%C", "%D", "%I", "%J", "%N", "%O", |
| |
"%P", "%Q", "%R", "%T", "%U", "%V", |
| |
NULL |
| |
}; |
| |
|
| int |
/* not currently implemented: BT DE DS ME MT PT SY TQ YS */ |
| roff_free(struct rofftree *tree, int flush) |
const char *const __man_reserved[] = { |
| |
"AT", "B", "BI", "BR", "DT", |
| |
"EE", "EN", "EQ", "EX", "HP", "I", "IB", "IP", "IR", |
| |
"LP", "OP", "P", "PD", "PP", |
| |
"R", "RB", "RE", "RI", "RS", "SB", "SH", "SM", "SS", |
| |
"TE", "TH", "TP", "TS", "T&", "UC", "UE", "UR", |
| |
NULL |
| |
}; |
| |
|
| |
/* Array of injected predefined strings. */ |
| |
#define PREDEFS_MAX 38 |
| |
static const struct predef predefs[PREDEFS_MAX] = { |
| |
#include "predefs.in" |
| |
}; |
| |
|
| |
static int roffit_lines; /* number of lines to delay */ |
| |
static char *roffit_macro; /* nil-terminated macro line */ |
| |
|
| |
|
| |
/* --- request table ------------------------------------------------------ */ |
| |
|
| |
struct ohash * |
| |
roffhash_alloc(enum roff_tok mintok, enum roff_tok maxtok) |
| { |
{ |
| int error; |
struct ohash *htab; |
| |
struct roffreq *req; |
| |
enum roff_tok tok; |
| |
size_t sz; |
| |
unsigned int slot; |
| |
|
| assert(tree->mbuf); |
htab = mandoc_malloc(sizeof(*htab)); |
| if ( ! flush) |
mandoc_ohash_init(htab, 8, offsetof(struct roffreq, name)); |
| tree->mbuf = NULL; |
|
| |
|
| /* LINTED */ |
for (tok = mintok; tok < maxtok; tok++) { |
| while (tree->last) |
if (roff_name[tok] == NULL) |
| if ( ! (*tokens[tree->last->tok].cb) |
continue; |
| (tree->last->tok, tree, NULL, ROFF_EXIT)) |
sz = strlen(roff_name[tok]); |
| /* Disallow flushing. */ |
req = mandoc_malloc(sizeof(*req) + sz + 1); |
| tree->mbuf = NULL; |
req->tok = tok; |
| |
memcpy(req->name, roff_name[tok], sz + 1); |
| |
slot = ohash_qlookup(htab, req->name); |
| |
ohash_insert(htab, slot, req); |
| |
} |
| |
return htab; |
| |
} |
| |
|
| error = tree->mbuf ? 0 : 1; |
void |
| |
roffhash_free(struct ohash *htab) |
| |
{ |
| |
struct roffreq *req; |
| |
unsigned int slot; |
| |
|
| if (tree->mbuf && (ROFF_PRELUDE & tree->state)) { |
if (htab == NULL) |
| warnx("%s: prelude never finished", |
return; |
| tree->rbuf->name); |
for (req = ohash_first(htab, &slot); req != NULL; |
| error = 1; |
req = ohash_next(htab, &slot)) |
| |
free(req); |
| |
ohash_delete(htab); |
| |
free(htab); |
| |
} |
| |
|
| |
enum roff_tok |
| |
roffhash_find(struct ohash *htab, const char *name, size_t sz) |
| |
{ |
| |
struct roffreq *req; |
| |
const char *end; |
| |
|
| |
if (sz) { |
| |
end = name + sz; |
| |
req = ohash_find(htab, ohash_qlookupi(htab, name, &end)); |
| |
} else |
| |
req = ohash_find(htab, ohash_qlookup(htab, name)); |
| |
return req == NULL ? TOKEN_NONE : req->tok; |
| |
} |
| |
|
| |
/* --- stack of request blocks -------------------------------------------- */ |
| |
|
| |
/* |
| |
* Pop the current node off of the stack of roff instructions currently |
| |
* pending. |
| |
*/ |
| |
static void |
| |
roffnode_pop(struct roff *r) |
| |
{ |
| |
struct roffnode *p; |
| |
|
| |
assert(r->last); |
| |
p = r->last; |
| |
|
| |
r->last = r->last->parent; |
| |
free(p->name); |
| |
free(p->end); |
| |
free(p); |
| |
} |
| |
|
| |
/* |
| |
* Push a roff node onto the instruction stack. This must later be |
| |
* removed with roffnode_pop(). |
| |
*/ |
| |
static void |
| |
roffnode_push(struct roff *r, enum roff_tok tok, const char *name, |
| |
int line, int col) |
| |
{ |
| |
struct roffnode *p; |
| |
|
| |
p = mandoc_calloc(1, sizeof(struct roffnode)); |
| |
p->tok = tok; |
| |
if (name) |
| |
p->name = mandoc_strdup(name); |
| |
p->parent = r->last; |
| |
p->line = line; |
| |
p->col = col; |
| |
p->rule = p->parent ? p->parent->rule : 0; |
| |
|
| |
r->last = p; |
| |
} |
| |
|
| |
/* --- roff parser state data management ---------------------------------- */ |
| |
|
| |
static void |
| |
roff_free1(struct roff *r) |
| |
{ |
| |
struct tbl_node *tbl; |
| |
struct eqn_node *e; |
| |
int i; |
| |
|
| |
while (NULL != (tbl = r->first_tbl)) { |
| |
r->first_tbl = tbl->next; |
| |
tbl_free(tbl); |
| } |
} |
| |
r->first_tbl = r->last_tbl = r->tbl = NULL; |
| |
|
| free(tree); |
while (NULL != (e = r->first_eqn)) { |
| return(error ? 0 : 1); |
r->first_eqn = e->next; |
| |
eqn_free(e); |
| |
} |
| |
r->first_eqn = r->last_eqn = r->eqn = NULL; |
| |
|
| |
while (r->last) |
| |
roffnode_pop(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->xmbtab); |
| |
r->strtab = r->xmbtab = NULL; |
| |
|
| |
if (r->xtab) |
| |
for (i = 0; i < 128; i++) |
| |
free(r->xtab[i].p); |
| |
free(r->xtab); |
| |
r->xtab = NULL; |
| } |
} |
| |
|
| |
void |
| |
roff_reset(struct roff *r) |
| |
{ |
| |
roff_free1(r); |
| |
r->format = r->options & (MPARSE_MDOC | MPARSE_MAN); |
| |
r->control = 0; |
| |
} |
| |
|
| struct rofftree * |
void |
| roff_alloc(const struct md_args *args, struct md_mbuf *out, |
roff_free(struct roff *r) |
| const struct md_rbuf *in, |
|
| const roffin *roffin, const roffout *roffout, |
|
| const roffblkin *roffblkin, |
|
| const roffblkout *roffblkout) |
|
| { |
{ |
| struct rofftree *tree; |
roff_free1(r); |
| |
roffhash_free(r->reqtab); |
| |
free(r); |
| |
} |
| |
|
| if (NULL == (tree = calloc(1, sizeof(struct rofftree)))) { |
struct roff * |
| warn("malloc"); |
roff_alloc(struct mparse *parse, int options) |
| return(NULL); |
{ |
| |
struct roff *r; |
| |
|
| |
r = mandoc_calloc(1, sizeof(struct roff)); |
| |
r->parse = parse; |
| |
r->reqtab = roffhash_alloc(0, ROFF_USERDEF); |
| |
r->options = options; |
| |
r->format = options & (MPARSE_MDOC | MPARSE_MAN); |
| |
r->rstackpos = -1; |
| |
return r; |
| |
} |
| |
|
| |
/* --- syntax tree state data management ---------------------------------- */ |
| |
|
| |
static void |
| |
roff_man_free1(struct roff_man *man) |
| |
{ |
| |
|
| |
if (man->first != NULL) |
| |
roff_node_delete(man, man->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); |
| |
} |
| |
|
| |
static void |
| |
roff_man_alloc1(struct roff_man *man) |
| |
{ |
| |
|
| |
memset(&man->meta, 0, sizeof(man->meta)); |
| |
man->first = mandoc_calloc(1, sizeof(*man->first)); |
| |
man->first->type = ROFFT_ROOT; |
| |
man->last = man->first; |
| |
man->last_es = NULL; |
| |
man->flags = 0; |
| |
man->macroset = MACROSET_NONE; |
| |
man->lastsec = man->lastnamed = SEC_NONE; |
| |
man->next = ROFF_NEXT_CHILD; |
| |
} |
| |
|
| |
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); |
| |
} |
| |
|
| |
struct roff_man * |
| |
roff_man_alloc(struct roff *roff, struct mparse *parse, |
| |
const char *defos, int quick) |
| |
{ |
| |
struct roff_man *man; |
| |
|
| |
man = mandoc_calloc(1, sizeof(*man)); |
| |
man->parse = parse; |
| |
man->roff = roff; |
| |
man->defos = defos; |
| |
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 & 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; |
| |
|
| tree->state = ROFF_PRELUDE; |
switch (n->type) { |
| tree->args = args; |
case ROFFT_HEAD: |
| tree->mbuf = out; |
n->parent->head = n; |
| tree->rbuf = in; |
break; |
| tree->roffin = roffin; |
case ROFFT_BODY: |
| tree->roffout = roffout; |
if (n->end != ENDBODY_NOT) |
| tree->roffblkin = roffblkin; |
return; |
| tree->roffblkout = roffblkout; |
n->parent->body = n; |
| |
break; |
| |
case ROFFT_TAIL: |
| |
n->parent->tail = n; |
| |
break; |
| |
default: |
| |
return; |
| |
} |
| |
|
| return(tree); |
/* |
| |
* 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; |
| |
|
| int |
n = roff_node_alloc(man, line, pos, ROFFT_TEXT, TOKEN_NONE); |
| roff_engine(struct rofftree *tree, char *buf, size_t sz) |
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; |
| |
|
| if (0 == sz) { |
n = man->last; |
| warnx("%s: blank line (line %zu)", |
addstr = roff_strdup(man->roff, word); |
| tree->rbuf->name, |
mandoc_asprintf(&newstr, "%s %s", n->string, addstr); |
| tree->rbuf->line); |
free(addstr); |
| return(0); |
free(n->string); |
| } else if ('.' != *buf) |
n->string = newstr; |
| return(textparse(tree, buf, sz)); |
man->next = ROFF_NEXT_SIBLING; |
| |
} |
| |
|
| return(roffparse(tree, buf, sz)); |
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; |
| |
|
| static int |
n = roff_node_alloc(man, line, pos, ROFFT_BLOCK, tok); |
| textparse(const struct rofftree *tree, const char *buf, size_t sz) |
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; |
| if (NULL == tree->last) { |
|
| warnx("%s: unexpected text (line %zu)", |
n = roff_node_alloc(man, line, pos, ROFFT_HEAD, tok); |
| tree->rbuf->name, |
roff_node_append(man, n); |
| tree->rbuf->line); |
man->next = ROFF_NEXT_CHILD; |
| return(0); |
return n; |
| } else if (NULL == tree->last->parent) { |
} |
| warnx("%s: disallowed text (line %zu)", |
|
| tree->rbuf->name, |
struct roff_node * |
| tree->rbuf->line); |
roff_body_alloc(struct roff_man *man, int line, int pos, int tok) |
| return(0); |
{ |
| |
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; |
| |
} |
| |
|
| |
void |
| |
roff_addeqn(struct roff_man *man, const struct eqn *eqn) |
| |
{ |
| |
struct roff_node *n; |
| |
|
| |
n = roff_node_alloc(man, eqn->ln, eqn->pos, ROFFT_EQN, TOKEN_NONE); |
| |
n->eqn = eqn; |
| |
if (eqn->ln > man->last->line) |
| |
n->flags |= NODE_LINE; |
| |
roff_node_append(man, n); |
| |
man->next = ROFF_NEXT_SIBLING; |
| |
} |
| |
|
| |
void |
| |
roff_addtbl(struct roff_man *man, const struct tbl_span *tbl) |
| |
{ |
| |
struct roff_node *n; |
| |
|
| |
if (man->macroset == MACROSET_MAN) |
| |
man_breakscope(man, TOKEN_NONE); |
| |
n = roff_node_alloc(man, tbl->line, 0, ROFFT_TBL, TOKEN_NONE); |
| |
n->span = tbl; |
| |
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; |
| } |
} |
| |
|
| /* Print text. */ |
/* Adjust parse point. */ |
| |
|
| return(1); |
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->first == n) |
| |
man->first = NULL; |
| } |
} |
| |
|
| |
void |
| |
roff_node_free(struct roff_node *n) |
| |
{ |
| |
|
| static int |
if (n->args != NULL) |
| roffargs(int tok, char *buf, char **argv) |
mdoc_argv_free(n->args); |
| |
if (n->type == ROFFT_BLOCK || n->type == ROFFT_ELEM) |
| |
free(n->norm); |
| |
free(n->string); |
| |
free(n); |
| |
} |
| |
|
| |
void |
| |
roff_node_delete(struct roff_man *man, struct roff_node *n) |
| { |
{ |
| int i; |
|
| |
|
| (void)tok;/* FIXME: quotable strings? */ |
while (n->child != NULL) |
| |
roff_node_delete(man, n->child); |
| |
roff_node_unlink(man, n); |
| |
roff_node_free(n); |
| |
} |
| |
|
| assert(tok >= 0 && tok < ROFF_MAX); |
void |
| assert('.' == *buf); |
deroff(char **dest, const struct roff_node *n) |
| |
{ |
| |
char *cp; |
| |
size_t sz; |
| |
|
| /* LINTED */ |
if (n->type != ROFFT_TEXT) { |
| for (i = 0; *buf && i < ROFF_MAXARG; i++) { |
for (n = n->child; n != NULL; n = n->next) |
| argv[i] = buf++; |
deroff(dest, n); |
| while (*buf && ! isspace(*buf)) |
return; |
| buf++; |
} |
| if (0 == *buf) { |
|
| |
/* 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 ---------------------------------- */ |
| |
|
| |
/* |
| |
* In the current line, expand escape sequences that tend to get |
| |
* used in numerical expressions and conditional requests. |
| |
* Also check the syntax of the remaining escape sequences. |
| |
*/ |
| |
static enum rofferr |
| |
roff_res(struct roff *r, struct buf *buf, int ln, int pos) |
| |
{ |
| |
char ubuf[24]; /* buffer to print the number */ |
| |
const char *start; /* start of the string to process */ |
| |
char *stesc; /* start of an escape sequence ('\\') */ |
| |
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 */ |
| |
enum mandoc_esc esc; /* type of the escape sequence */ |
| |
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 */ |
| |
char term; /* character terminating the escape */ |
| |
|
| |
expand_count = 0; |
| |
start = buf->buf + pos; |
| |
stesc = strchr(start, '\0') - 1; |
| |
while (stesc-- > start) { |
| |
|
| |
/* Search backwards for the next backslash. */ |
| |
|
| |
if (*stesc != '\\') |
| continue; |
continue; |
| |
|
| |
/* If it is escaped, skip it. */ |
| |
|
| |
for (cp = stesc - 1; cp >= start; cp--) |
| |
if (*cp != '\\') |
| |
break; |
| |
|
| |
if ((stesc - cp) % 2 == 0) { |
| |
stesc = (char *)cp; |
| |
continue; |
| } |
} |
| *buf++ = 0; |
|
| while (*buf && isspace(*buf)) |
/* Decide whether to expand or to check only. */ |
| buf++; |
|
| |
term = '\0'; |
| |
cp = stesc + 1; |
| |
switch (*cp) { |
| |
case '*': |
| |
res = NULL; |
| |
break; |
| |
case 'B': |
| |
case 'w': |
| |
term = cp[1]; |
| |
/* FALLTHROUGH */ |
| |
case 'n': |
| |
res = ubuf; |
| |
break; |
| |
default: |
| |
esc = mandoc_escape(&cp, &stnam, &inaml); |
| |
if (esc == ESCAPE_ERROR || |
| |
(esc == ESCAPE_SPECIAL && |
| |
mchars_spec2cp(stnam, inaml) < 0)) |
| |
mandoc_vmsg(MANDOCERR_ESC_BAD, |
| |
r->parse, ln, (int)(stesc - buf->buf), |
| |
"%.*s", (int)(cp - stesc), stesc); |
| |
continue; |
| |
} |
| |
|
| |
if (EXPAND_LIMIT < ++expand_count) { |
| |
mandoc_msg(MANDOCERR_ROFFLOOP, r->parse, |
| |
ln, (int)(stesc - buf->buf), NULL); |
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
/* |
| |
* The third character decides the length |
| |
* of the name of the string or register. |
| |
* Save a pointer to the name. |
| |
*/ |
| |
|
| |
if (term == '\0') { |
| |
switch (*++cp) { |
| |
case '\0': |
| |
maxl = 0; |
| |
break; |
| |
case '(': |
| |
cp++; |
| |
maxl = 2; |
| |
break; |
| |
case '[': |
| |
cp++; |
| |
term = ']'; |
| |
maxl = 0; |
| |
break; |
| |
default: |
| |
maxl = 1; |
| |
break; |
| |
} |
| |
} else { |
| |
cp += 2; |
| |
maxl = 0; |
| |
} |
| |
stnam = cp; |
| |
|
| |
/* Advance to the end of the name. */ |
| |
|
| |
naml = 0; |
| |
arg_complete = 1; |
| |
while (maxl == 0 || naml < maxl) { |
| |
if (*cp == '\0') { |
| |
mandoc_msg(MANDOCERR_ESC_BAD, r->parse, |
| |
ln, (int)(stesc - buf->buf), stesc); |
| |
arg_complete = 0; |
| |
break; |
| |
} |
| |
if (maxl == 0 && *cp == term) { |
| |
cp++; |
| |
break; |
| |
} |
| |
if (*cp++ != '\\' || stesc[1] != 'w') { |
| |
naml++; |
| |
continue; |
| |
} |
| |
switch (mandoc_escape(&cp, NULL, NULL)) { |
| |
case ESCAPE_SPECIAL: |
| |
case ESCAPE_UNICODE: |
| |
case ESCAPE_NUMBERED: |
| |
case ESCAPE_OVERSTRIKE: |
| |
naml++; |
| |
break; |
| |
default: |
| |
break; |
| |
} |
| |
} |
| |
|
| |
/* |
| |
* Retrieve the replacement string; if it is |
| |
* undefined, resume searching for escapes. |
| |
*/ |
| |
|
| |
switch (stesc[1]) { |
| |
case '*': |
| |
if (arg_complete) |
| |
res = roff_getstrn(r, stnam, naml); |
| |
break; |
| |
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)); |
| |
else |
| |
ubuf[0] = '\0'; |
| |
break; |
| |
case 'w': |
| |
/* use even incomplete args */ |
| |
(void)snprintf(ubuf, sizeof(ubuf), "%d", |
| |
24 * (int)naml); |
| |
break; |
| |
} |
| |
|
| |
if (res == NULL) { |
| |
mandoc_vmsg(MANDOCERR_STR_UNDEF, |
| |
r->parse, ln, (int)(stesc - buf->buf), |
| |
"%.*s", (int)naml, stnam); |
| |
res = ""; |
| |
} else if (buf->sz + strlen(res) > SHRT_MAX) { |
| |
mandoc_msg(MANDOCERR_ROFFLOOP, r->parse, |
| |
ln, (int)(stesc - buf->buf), NULL); |
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
/* Replace the escape sequence by the string. */ |
| |
|
| |
*stesc = '\0'; |
| |
buf->sz = mandoc_asprintf(&nbuf, "%s%s%s", |
| |
buf->buf, res, cp) + 1; |
| |
|
| |
/* Prepare for the next replacement. */ |
| |
|
| |
start = nbuf + pos; |
| |
stesc = nbuf + (stesc - buf->buf) + strlen(res); |
| |
free(buf->buf); |
| |
buf->buf = nbuf; |
| } |
} |
| |
return ROFF_CONT; |
| assert(i > 0); |
} |
| if (i < ROFF_MAXARG) |
|
| argv[i] = NULL; |
|
| |
|
| return(ROFF_MAXARG > i); |
/* |
| |
* Process text streams. |
| |
*/ |
| |
static enum rofferr |
| |
roff_parsetext(struct buf *buf, int pos, int *offs) |
| |
{ |
| |
size_t sz; |
| |
const char *start; |
| |
char *p; |
| |
int isz; |
| |
enum mandoc_esc esc; |
| |
|
| |
/* Spring the input line trap. */ |
| |
|
| |
if (roffit_lines == 1) { |
| |
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; |
| |
|
| |
/* 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; |
| } |
} |
| |
|
| |
enum rofferr |
| |
roff_parseln(struct roff *r, int ln, struct buf *buf, int *offs) |
| |
{ |
| |
enum roff_tok t; |
| |
enum rofferr e; |
| |
int pos; /* parse point */ |
| |
int spos; /* saved parse point for messages */ |
| |
int ppos; /* original offset in buf->buf */ |
| |
int ctl; /* macro line (boolean) */ |
| |
|
| static int |
ppos = pos = *offs; |
| roffparse(struct rofftree *tree, char *buf, size_t sz) |
|
| |
/* 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_res(r, buf, ln, pos); |
| |
if (e == 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 |
| |
* text through the macro's filter. |
| |
* 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 != NULL && ! ctl) { |
| |
t = r->last->tok; |
| |
e = (*roffs[t].text)(r, t, buf, ln, pos, pos, offs); |
| |
if (e == ROFF_IGN) |
| |
return e; |
| |
assert(e == ROFF_CONT); |
| |
} |
| |
if (r->eqn != NULL) |
| |
return eqn_read(&r->eqn, ln, buf->buf, ppos, offs); |
| |
if (r->tbl != NULL && ( ! ctl || buf->buf[pos] == '\0')) |
| |
return tbl_read(r->tbl, ln, buf->buf, ppos); |
| |
if ( ! ctl) |
| |
return roff_parsetext(buf, pos, offs); |
| |
|
| |
/* Skip empty request lines. */ |
| |
|
| |
if (buf->buf[pos] == '"') { |
| |
mandoc_msg(MANDOCERR_COMMENT_BAD, r->parse, |
| |
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, |
| |
* as it may want to preprocess before doing anything with it. |
| |
* Don't do so if an equation is open. |
| |
*/ |
| |
|
| |
if (r->last) { |
| |
t = r->last->tok; |
| |
return (*roffs[t].sub)(r, t, buf, ln, ppos, pos, offs); |
| |
} |
| |
|
| |
/* No scope is open. This is a new request or macro. */ |
| |
|
| |
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)) { |
| |
mandoc_msg(MANDOCERR_TBLMACRO, r->parse, |
| |
ln, pos, buf->buf + spos); |
| |
if (t == ROFF_TS) |
| |
return ROFF_IGN; |
| |
while (buf->buf[pos] != '\0' && buf->buf[pos] != ' ') |
| |
pos++; |
| |
while (buf->buf[pos] == ' ') |
| |
pos++; |
| |
return tbl_read(r->tbl, ln, buf->buf, pos); |
| |
} |
| |
|
| |
/* |
| |
* This is neither a roff request nor a user-defined macro. |
| |
* Let the standard macro set parsers handle it. |
| |
*/ |
| |
|
| |
if (t == TOKEN_NONE) |
| |
return ROFF_CONT; |
| |
|
| |
/* Execute a roff request or a user defined macro. */ |
| |
|
| |
return (*roffs[t].proc)(r, t, buf, ln, spos, pos, offs); |
| |
} |
| |
|
| |
void |
| |
roff_endparse(struct roff *r) |
| { |
{ |
| int tok, t; |
|
| struct roffnode *node; |
|
| char *argv[ROFF_MAXARG]; |
|
| const char **argvp; |
|
| |
|
| assert(sz > 0); |
if (r->last) |
| |
mandoc_msg(MANDOCERR_BLK_NOEND, r->parse, |
| |
r->last->line, r->last->col, |
| |
roff_name[r->last->tok]); |
| |
|
| |
if (r->eqn) { |
| |
mandoc_msg(MANDOCERR_BLK_NOEND, r->parse, |
| |
r->eqn->eqn.ln, r->eqn->eqn.pos, "EQ"); |
| |
eqn_end(&r->eqn); |
| |
} |
| |
|
| |
if (r->tbl) { |
| |
mandoc_msg(MANDOCERR_BLK_NOEND, r->parse, |
| |
r->tbl->line, r->tbl->pos, "TS"); |
| |
tbl_end(&r->tbl); |
| |
} |
| |
} |
| |
|
| |
/* |
| |
* Parse a roff node's type from the input buffer. This must be in the |
| |
* form of ".foo xxx" in the usual way. |
| |
*/ |
| |
static enum roff_tok |
| |
roff_parse(struct roff *r, char *buf, int *pos, int ln, int ppos) |
| |
{ |
| |
char *cp; |
| |
const char *mac; |
| |
size_t maclen; |
| |
enum roff_tok t; |
| |
|
| |
cp = buf + *pos; |
| |
|
| |
if ('\0' == *cp || '"' == *cp || '\t' == *cp || ' ' == *cp) |
| |
return TOKEN_NONE; |
| |
|
| |
mac = cp; |
| |
maclen = roff_getname(r, &cp, ln, ppos); |
| |
|
| |
t = (r->current_string = roff_getstrn(r, mac, maclen)) |
| |
? ROFF_USERDEF : roffhash_find(r->reqtab, mac, maclen); |
| |
|
| |
if (t != TOKEN_NONE) |
| |
*pos = cp - buf; |
| |
|
| |
return t; |
| |
} |
| |
|
| |
/* --- handling of request blocks ----------------------------------------- */ |
| |
|
| |
static enum rofferr |
| |
roff_cblock(ROFF_ARGS) |
| |
{ |
| |
|
| /* |
/* |
| * Extract the token identifier from the buffer. If there's no |
* A block-close `..' should only be invoked as a child of an |
| * callback for the token (comment, etc.) then exit immediately. |
* ignore macro, otherwise raise a warning and just ignore it. |
| * We don't do any error handling (yet), so if the token doesn't |
|
| * exist, die. |
|
| */ |
*/ |
| |
|
| if (3 > sz) { |
if (r->last == NULL) { |
| warnx("%s: malformed line (line %zu)", |
mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse, |
| tree->rbuf->name, |
ln, ppos, ".."); |
| tree->rbuf->line); |
return ROFF_IGN; |
| return(0); |
|
| } else if (ROFF_MAX == (tok = rofffindtok(buf + 1))) { |
|
| warnx("%s: unknown line token `%c%c' (line %zu)", |
|
| tree->rbuf->name, |
|
| *(buf + 1), *(buf + 2), |
|
| tree->rbuf->line); |
|
| return(0); |
|
| } else if (ROFF_COMMENT == tokens[tok].type) |
|
| /* Ignore comment tokens. */ |
|
| return(1); |
|
| |
|
| if ( ! roffargs(tok, buf, argv)) { |
|
| warnx("%s: too many arguments to `%s' (line %zu)", |
|
| tree->rbuf->name, tokens[tok].name, |
|
| tree->rbuf->line); |
|
| return(0); |
|
| } |
} |
| |
|
| /* Domain cross-contamination (and sanity) checks. */ |
switch (r->last->tok) { |
| |
case ROFF_am: |
| |
/* ROFF_am1 is remapped to ROFF_am in roff_block(). */ |
| |
case ROFF_ami: |
| |
case ROFF_de: |
| |
/* ROFF_de1 is remapped to ROFF_de in roff_block(). */ |
| |
case ROFF_dei: |
| |
case ROFF_ig: |
| |
break; |
| |
default: |
| |
mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse, |
| |
ln, ppos, ".."); |
| |
return ROFF_IGN; |
| |
} |
| |
|
| switch (tokens[tok].type) { |
if (buf->buf[pos] != '\0') |
| case (ROFF_TITLE): |
mandoc_vmsg(MANDOCERR_ARG_SKIP, r->parse, ln, pos, |
| if (ROFF_PRELUDE & tree->state) { |
".. %s", buf->buf + pos); |
| assert( ! (ROFF_BODY & tree->state)); |
|
| |
roffnode_pop(r); |
| |
roffnode_cleanscope(r); |
| |
return ROFF_IGN; |
| |
|
| |
} |
| |
|
| |
static void |
| |
roffnode_cleanscope(struct roff *r) |
| |
{ |
| |
|
| |
while (r->last) { |
| |
if (--r->last->endspan != 0) |
| break; |
break; |
| |
roffnode_pop(r); |
| |
} |
| |
} |
| |
|
| |
static void |
| |
roff_ccond(struct roff *r, int ln, int ppos) |
| |
{ |
| |
|
| |
if (NULL == r->last) { |
| |
mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse, |
| |
ln, ppos, "\\}"); |
| |
return; |
| |
} |
| |
|
| |
switch (r->last->tok) { |
| |
case ROFF_el: |
| |
case ROFF_ie: |
| |
case ROFF_if: |
| |
break; |
| |
default: |
| |
mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse, |
| |
ln, ppos, "\\}"); |
| |
return; |
| |
} |
| |
|
| |
if (r->last->endspan > -1) { |
| |
mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse, |
| |
ln, ppos, "\\}"); |
| |
return; |
| |
} |
| |
|
| |
roffnode_pop(r); |
| |
roffnode_cleanscope(r); |
| |
return; |
| |
} |
| |
|
| |
static enum rofferr |
| |
roff_block(ROFF_ARGS) |
| |
{ |
| |
const char *name; |
| |
char *iname, *cp; |
| |
size_t namesz; |
| |
|
| |
/* Ignore groff compatibility mode for now. */ |
| |
|
| |
if (tok == ROFF_de1) |
| |
tok = ROFF_de; |
| |
else if (tok == ROFF_dei1) |
| |
tok = ROFF_dei; |
| |
else if (tok == ROFF_am1) |
| |
tok = ROFF_am; |
| |
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'; |
| |
} |
| |
|
| |
/* Resolve the macro name argument if it is indirect. */ |
| |
|
| |
if (namesz && (tok == ROFF_dei || tok == ROFF_ami)) { |
| |
if ((name = roff_getstrn(r, iname, namesz)) == NULL) { |
| |
mandoc_vmsg(MANDOCERR_STR_UNDEF, |
| |
r->parse, ln, (int)(iname - buf->buf), |
| |
"%.*s", (int)namesz, iname); |
| |
namesz = 0; |
| |
} else |
| |
namesz = strlen(name); |
| |
} else |
| |
name = iname; |
| |
|
| |
if (namesz == 0 && tok != ROFF_ig) { |
| |
mandoc_msg(MANDOCERR_REQ_EMPTY, r->parse, |
| |
ln, ppos, roff_name[tok]); |
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
roffnode_push(r, tok, name, ln, ppos); |
| |
|
| |
/* |
| |
* At the beginning of a `de' macro, clear the existing string |
| |
* with the same name, if there is one. New content will be |
| |
* appended from roff_block_text() in multiline mode. |
| |
*/ |
| |
|
| |
if (tok == ROFF_de || tok == ROFF_dei) |
| |
roff_setstrn(&r->strtab, name, namesz, "", 0, 0); |
| |
|
| |
if (*cp == '\0') |
| |
return ROFF_IGN; |
| |
|
| |
/* Get the custom end marker. */ |
| |
|
| |
iname = cp; |
| |
namesz = roff_getname(r, &cp, ln, ppos); |
| |
|
| |
/* Resolve the end marker if it is indirect. */ |
| |
|
| |
if (namesz && (tok == ROFF_dei || tok == ROFF_ami)) { |
| |
if ((name = roff_getstrn(r, iname, namesz)) == NULL) { |
| |
mandoc_vmsg(MANDOCERR_STR_UNDEF, |
| |
r->parse, 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); |
| |
|
| |
if (*cp != '\0') |
| |
mandoc_vmsg(MANDOCERR_ARG_EXCESS, r->parse, |
| |
ln, pos, ".%s ... %s", roff_name[tok], cp); |
| |
|
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
static enum rofferr |
| |
roff_block_sub(ROFF_ARGS) |
| |
{ |
| |
enum roff_tok t; |
| |
int i, j; |
| |
|
| |
/* |
| |
* First check whether a custom macro exists at this level. If |
| |
* it does, then check against it. This is some of groff's |
| |
* stranger behaviours. If we encountered a custom end-scope |
| |
* tag and that tag also happens to be a "real" macro, then we |
| |
* need to try interpreting it again as a real macro. If it's |
| |
* not, then return ignore. Else continue. |
| |
*/ |
| |
|
| |
if (r->last->end) { |
| |
for (i = pos, j = 0; r->last->end[j]; j++, i++) |
| |
if (buf->buf[i] != r->last->end[j]) |
| |
break; |
| |
|
| |
if (r->last->end[j] == '\0' && |
| |
(buf->buf[i] == '\0' || |
| |
buf->buf[i] == ' ' || |
| |
buf->buf[i] == '\t')) { |
| |
roffnode_pop(r); |
| |
roffnode_cleanscope(r); |
| |
|
| |
while (buf->buf[i] == ' ' || buf->buf[i] == '\t') |
| |
i++; |
| |
|
| |
pos = i; |
| |
if (roff_parse(r, buf->buf, &pos, ln, ppos) != |
| |
TOKEN_NONE) |
| |
return ROFF_RERUN; |
| |
return ROFF_IGN; |
| } |
} |
| assert(ROFF_BODY & tree->state); |
} |
| warnx("%s: prelude token `%s' in body (line %zu)", |
|
| tree->rbuf->name, tokens[tok].name, |
/* |
| tree->rbuf->line); |
* If we have no custom end-query or lookup failed, then try |
| return(0); |
* pulling it out of the hashtable. |
| case (ROFF_LAYOUT): |
*/ |
| /* FALLTHROUGH */ |
|
| case (ROFF_TEXT): |
t = roff_parse(r, buf->buf, &pos, ln, ppos); |
| if (ROFF_BODY & tree->state) { |
|
| assert( ! (ROFF_PRELUDE & tree->state)); |
if (t != ROFF_cblock) { |
| |
if (tok != ROFF_ig) |
| |
roff_setstr(r, r->last->name, buf->buf + ppos, 2); |
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
return (*roffs[t].proc)(r, t, buf, ln, ppos, pos, offs); |
| |
} |
| |
|
| |
static enum rofferr |
| |
roff_block_text(ROFF_ARGS) |
| |
{ |
| |
|
| |
if (tok != ROFF_ig) |
| |
roff_setstr(r, r->last->name, buf->buf + pos, 2); |
| |
|
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
static enum rofferr |
| |
roff_cond_sub(ROFF_ARGS) |
| |
{ |
| |
enum roff_tok t; |
| |
char *ep; |
| |
int rr; |
| |
|
| |
rr = r->last->rule; |
| |
roffnode_cleanscope(r); |
| |
t = roff_parse(r, buf->buf, &pos, ln, ppos); |
| |
|
| |
/* |
| |
* Fully handle known macros when they are structurally |
| |
* required or when the conditional evaluated to true. |
| |
*/ |
| |
|
| |
if (t != TOKEN_NONE && (rr || roffs[t].flags & ROFFMAC_STRUCT)) |
| |
return (*roffs[t].proc)(r, t, buf, ln, ppos, pos, offs); |
| |
|
| |
/* |
| |
* If `\}' occurs on a macro line without a preceding macro, |
| |
* drop the line completely. |
| |
*/ |
| |
|
| |
ep = buf->buf + pos; |
| |
if (ep[0] == '\\' && ep[1] == '}') |
| |
rr = 0; |
| |
|
| |
/* Always check for the closing delimiter `\}'. */ |
| |
|
| |
while ((ep = strchr(ep, '\\')) != NULL) { |
| |
if (*(++ep) == '}') { |
| |
*ep = '&'; |
| |
roff_ccond(r, ln, ep - buf->buf - 1); |
| |
} |
| |
if (*ep != '\0') |
| |
++ep; |
| |
} |
| |
return rr ? ROFF_CONT : ROFF_IGN; |
| |
} |
| |
|
| |
static enum rofferr |
| |
roff_cond_text(ROFF_ARGS) |
| |
{ |
| |
char *ep; |
| |
int rr; |
| |
|
| |
rr = r->last->rule; |
| |
roffnode_cleanscope(r); |
| |
|
| |
ep = buf->buf + pos; |
| |
while ((ep = strchr(ep, '\\')) != NULL) { |
| |
if (*(++ep) == '}') { |
| |
*ep = '&'; |
| |
roff_ccond(r, ln, ep - buf->buf - 1); |
| |
} |
| |
if (*ep != '\0') |
| |
++ep; |
| |
} |
| |
return rr ? ROFF_CONT : ROFF_IGN; |
| |
} |
| |
|
| |
/* --- handling of numeric and conditional expressions -------------------- */ |
| |
|
| |
/* |
| |
* 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; |
| |
|
| |
if (NULL == res) |
| |
res = &myres; |
| |
|
| |
p = *pos; |
| |
n = v[p] == '-'; |
| |
if (n || v[p] == '+') |
| |
p++; |
| |
|
| |
if (flags & ROFFNUM_WHITE) |
| |
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; |
| |
|
| |
match = 0; |
| |
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; |
break; |
| } |
} |
| assert(ROFF_PRELUDE & tree->state); |
if (*s3 == *s1) { /* found the final delimiter */ |
| warnx("%s: body token `%s' in prelude (line %zu)", |
match = 1; |
| tree->rbuf->name, tokens[tok].name, |
break; |
| tree->rbuf->line); |
} |
| return(0); |
s2++; |
| case (ROFF_COMMENT): |
} |
| return(1); |
|
| |
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) |
| |
{ |
| |
char *cp, *name; |
| |
size_t sz; |
| |
int number, savepos, wanttrue; |
| |
|
| |
if ('!' == v[*pos]) { |
| |
wanttrue = 0; |
| |
(*pos)++; |
| |
} else |
| |
wanttrue = 1; |
| |
|
| |
switch (v[*pos]) { |
| |
case '\0': |
| |
return 0; |
| |
case 'n': |
| |
case 'o': |
| |
(*pos)++; |
| |
return wanttrue; |
| |
case 'c': |
| |
case 'd': |
| |
case 'e': |
| |
case 't': |
| |
case 'v': |
| |
(*pos)++; |
| |
return !wanttrue; |
| |
case 'r': |
| |
cp = name = v + ++*pos; |
| |
sz = roff_getname(r, &cp, ln, *pos); |
| |
*pos = cp - v; |
| |
return (sz && roff_hasregn(r, name, sz)) == wanttrue; |
| default: |
default: |
| abort(); |
break; |
| } |
} |
| |
|
| |
savepos = *pos; |
| |
if (roff_evalnum(r, ln, v, pos, &number, ROFFNUM_SCALE)) |
| |
return (number > 0) == wanttrue; |
| |
else if (*pos == savepos) |
| |
return roff_evalstrcond(v, pos) == wanttrue; |
| |
else |
| |
return 0; |
| |
} |
| |
|
| |
static enum rofferr |
| |
roff_line_ignore(ROFF_ARGS) |
| |
{ |
| |
|
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
static enum rofferr |
| |
roff_insec(ROFF_ARGS) |
| |
{ |
| |
|
| |
mandoc_msg(MANDOCERR_REQ_INSEC, r->parse, |
| |
ln, ppos, roff_name[tok]); |
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
static enum rofferr |
| |
roff_unsupp(ROFF_ARGS) |
| |
{ |
| |
|
| |
mandoc_msg(MANDOCERR_REQ_UNSUPP, r->parse, |
| |
ln, ppos, roff_name[tok]); |
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
static enum rofferr |
| |
roff_cond(ROFF_ARGS) |
| |
{ |
| |
|
| |
roffnode_push(r, tok, NULL, ln, ppos); |
| |
|
| /* |
/* |
| * If this is a non-nestable layout token and we're below a |
* An `.el' has no conditional body: it will consume the value |
| * token of the same type, then recurse upward to the token, |
* of the current rstack entry set in prior `ie' calls or |
| * closing out the interim scopes. |
* defaults to DENY. |
| * |
* |
| * If there's a nested token on the chain, then raise an error |
* If we're not an `el', however, then evaluate the conditional. |
| * as nested tokens have corresponding "ending" tokens and we're |
|
| * breaking their scope. |
|
| */ |
*/ |
| |
|
| node = NULL; |
r->last->rule = tok == ROFF_el ? |
| |
(r->rstackpos < 0 ? 0 : r->rstack[r->rstackpos--]) : |
| |
roff_evalcond(r, ln, buf->buf, &pos); |
| |
|
| if (ROFF_LAYOUT == tokens[tok].type && |
/* |
| ! (ROFF_NESTED & tokens[tok].flags)) { |
* An if-else will put the NEGATION of the current evaluated |
| for (node = tree->last; node; node = node->parent) { |
* conditional into the stack of rules. |
| if (node->tok == tok) |
*/ |
| break; |
|
| |
|
| /* Don't break nested scope. */ |
if (tok == ROFF_ie) { |
| |
if (r->rstackpos + 1 == r->rstacksz) { |
| if ( ! (ROFF_NESTED & tokens[node->tok].flags)) |
r->rstacksz += 16; |
| continue; |
r->rstack = mandoc_reallocarray(r->rstack, |
| warnx("%s: scope of %s (line %zu) broken by " |
r->rstacksz, sizeof(int)); |
| "%s (line %zu)", |
|
| tree->rbuf->name, |
|
| tokens[tok].name, |
|
| node->line, |
|
| tokens[node->tok].name, |
|
| tree->rbuf->line); |
|
| return(0); |
|
| } |
} |
| |
r->rstack[++r->rstackpos] = !r->last->rule; |
| } |
} |
| |
|
| if (node) { |
/* If the parent has false as its rule, then so do we. */ |
| assert(ROFF_LAYOUT == tokens[tok].type); |
|
| assert( ! (ROFF_NESTED & tokens[tok].flags)); |
|
| assert(node->tok == tok); |
|
| |
|
| /* Clear up to last scoped token. */ |
if (r->last->parent && !r->last->parent->rule) |
| |
r->last->rule = 0; |
| |
|
| /* LINTED */ |
/* |
| do { |
* Determine scope. |
| t = tree->last->tok; |
* If there is nothing on the line after the conditional, |
| if ( ! (*tokens[tree->last->tok].cb) |
* not even whitespace, use next-line scope. |
| (tree->last->tok, tree, NULL, ROFF_EXIT)) |
*/ |
| return(0); |
|
| } while (t != tok); |
if (buf->buf[pos] == '\0') { |
| |
r->last->endspan = 2; |
| |
goto out; |
| } |
} |
| |
|
| /* Proceed with actual token processing. */ |
while (buf->buf[pos] == ' ') |
| |
pos++; |
| |
|
| argvp = (const char **)&argv[1]; |
/* An opening brace requests multiline scope. */ |
| return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER)); |
|
| |
if (buf->buf[pos] == '\\' && buf->buf[pos + 1] == '{') { |
| |
r->last->endspan = -1; |
| |
pos += 2; |
| |
while (buf->buf[pos] == ' ') |
| |
pos++; |
| |
goto out; |
| |
} |
| |
|
| |
/* |
| |
* Anything else following the conditional causes |
| |
* single-line scope. Warn if the scope contains |
| |
* nothing but trailing whitespace. |
| |
*/ |
| |
|
| |
if (buf->buf[pos] == '\0') |
| |
mandoc_msg(MANDOCERR_COND_EMPTY, r->parse, |
| |
ln, ppos, roff_name[tok]); |
| |
|
| |
r->last->endspan = 1; |
| |
|
| |
out: |
| |
*offs = pos; |
| |
return ROFF_RERUN; |
| } |
} |
| |
|
| |
static enum rofferr |
| |
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; |
| |
|
| |
/* |
| |
* The first word is the name of the string. |
| |
* If it is empty or terminated by an escape sequence, |
| |
* abort the `ds' request without defining anything. |
| |
*/ |
| |
|
| |
name = string = buf->buf + pos; |
| |
if (*name == '\0') |
| |
return ROFF_IGN; |
| |
|
| |
namesz = roff_getname(r, &string, ln, pos); |
| |
if (name[namesz] == '\\') |
| |
return ROFF_IGN; |
| |
|
| |
/* Read past the initial double-quote, if any. */ |
| |
if (*string == '"') |
| |
string++; |
| |
|
| |
/* The rest is the value. */ |
| |
roff_setstrn(&r->strtab, name, namesz, string, strlen(string), |
| |
ROFF_as == tok); |
| |
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 |
static int |
| rofffindarg(const char *name) |
roff_getop(const char *v, int *pos, char *res) |
| { |
{ |
| size_t i; |
|
| |
|
| /* FIXME: use a table, this is slow but ok for now. */ |
*res = v[*pos]; |
| |
|
| /* LINTED */ |
switch (*res) { |
| for (i = 0; i < ROFF_ARGMAX; i++) |
case '+': |
| /* LINTED */ |
case '-': |
| if (0 == strcmp(name, tokenargs[i].name)) |
case '*': |
| return((int)i); |
case '/': |
| |
case '%': |
| return(ROFF_ARGMAX); |
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) |
| |
{ |
| |
|
| |
if ('(' != v[*pos]) |
| |
return roff_getnum(v, pos, res, flags); |
| |
|
| |
(*pos)++; |
| |
if ( ! roff_evalnum(r, ln, v, pos, res, flags | ROFFNUM_WHITE)) |
| |
return 0; |
| |
|
| |
/* |
| |
* Omission of the closing parenthesis |
| |
* is an error in validation mode, |
| |
* but ignored in evaluation mode. |
| |
*/ |
| |
|
| |
if (')' == v[*pos]) |
| |
(*pos)++; |
| |
else if (NULL == res) |
| |
return 0; |
| |
|
| |
return 1; |
| |
} |
| |
|
| |
/* |
| |
* Evaluate a complete numeric expression. |
| |
* Proceed left to right, there is no concept of precedence. |
| |
*/ |
| static int |
static int |
| rofffindtok(const char *name) |
roff_evalnum(struct roff *r, int ln, const char *v, |
| |
int *pos, int *res, int flags) |
| { |
{ |
| size_t i; |
int mypos, operand2; |
| |
char operator; |
| |
|
| /* FIXME: use a table, this is slow but ok for now. */ |
if (NULL == pos) { |
| |
mypos = 0; |
| |
pos = &mypos; |
| |
} |
| |
|
| /* LINTED */ |
if (flags & ROFFNUM_WHITE) |
| for (i = 0; i < ROFF_MAX; i++) |
while (isspace((unsigned char)v[*pos])) |
| /* LINTED */ |
(*pos)++; |
| if (0 == strncmp(name, tokens[i].name, 2)) |
|
| return((int)i); |
if ( ! roff_evalpar(r, ln, v, pos, res, flags)) |
| |
return 0; |
| return(ROFF_MAX); |
|
| |
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, |
| |
r->parse, ln, *pos, v); |
| |
*res = 0; |
| |
break; |
| |
} |
| |
*res /= operand2; |
| |
break; |
| |
case '%': |
| |
if (operand2 == 0) { |
| |
mandoc_msg(MANDOCERR_DIVZERO, |
| |
r->parse, ln, *pos, 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 ------------------------------------------------ */ |
| |
|
| |
void |
| |
roff_setreg(struct roff *r, const char *name, int val, char sign) |
| |
{ |
| |
struct roffreg *reg; |
| |
|
| |
/* Search for an existing register with the same name. */ |
| |
reg = r->regtab; |
| |
|
| |
while (reg && strcmp(name, reg->key.p)) |
| |
reg = reg->next; |
| |
|
| |
if (NULL == reg) { |
| |
/* Create a new register. */ |
| |
reg = mandoc_malloc(sizeof(struct roffreg)); |
| |
reg->key.p = mandoc_strdup(name); |
| |
reg->key.sz = strlen(name); |
| |
reg->val = 0; |
| |
reg->next = r->regtab; |
| |
r->regtab = reg; |
| |
} |
| |
|
| |
if ('+' == sign) |
| |
reg->val += val; |
| |
else if ('-' == sign) |
| |
reg->val -= val; |
| |
else |
| |
reg->val = val; |
| |
} |
| |
|
| |
/* |
| |
* 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 |
static int |
| rofffindcallable(const char *name) |
roff_getregro(const struct roff *r, const char *name) |
| { |
{ |
| int c; |
|
| |
|
| if (ROFF_MAX == (c = rofffindtok(name))) |
switch (*name) { |
| return(ROFF_MAX); |
case '$': /* Number of arguments of the last macro evaluated. */ |
| return(ROFF_CALLABLE & tokens[c].flags ? c : ROFF_MAX); |
return r->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(const struct roff *r, const char *name) |
| |
{ |
| |
struct roffreg *reg; |
| |
int val; |
| |
|
| /* FIXME: accept only struct rofftree *. */ |
if ('.' == name[0] && '\0' != name[1] && '\0' == name[2]) { |
| static struct roffnode * |
val = roff_getregro(r, name + 1); |
| roffnode_new(int tokid, size_t line, struct rofftree *tree) |
if (-1 != val) |
| |
return val; |
| |
} |
| |
|
| |
for (reg = r->regtab; reg; reg = reg->next) |
| |
if (0 == strcmp(name, reg->key.p)) |
| |
return reg->val; |
| |
|
| |
return 0; |
| |
} |
| |
|
| |
static int |
| |
roff_getregn(const struct roff *r, const char *name, size_t len) |
| { |
{ |
| struct roffnode *p; |
struct roffreg *reg; |
| |
int val; |
| if (NULL == (p = malloc(sizeof(struct roffnode)))) { |
|
| warn("malloc"); |
if ('.' == name[0] && 2 == len) { |
| return(NULL); |
val = roff_getregro(r, name + 1); |
| |
if (-1 != val) |
| |
return val; |
| } |
} |
| |
|
| p->line = line; |
for (reg = r->regtab; reg; reg = reg->next) |
| p->tok = tokid; |
if (len == reg->key.sz && |
| p->parent = tree->last; |
0 == strncmp(name, reg->key.p, len)) |
| tree->last = p; |
return reg->val; |
| return(p); |
|
| |
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 |
static void |
| roffnode_free(int tokid, struct rofftree *tree) |
roff_freereg(struct roffreg *reg) |
| { |
{ |
| struct roffnode *p; |
struct roffreg *old_reg; |
| |
|
| assert(tree->last); |
while (NULL != reg) { |
| assert(tree->last->tok == tokid); |
free(reg->key.p); |
| |
old_reg = reg; |
| |
reg = reg->next; |
| |
free(old_reg); |
| |
} |
| |
} |
| |
|
| p = tree->last; |
static enum rofferr |
| tree->last = tree->last->parent; |
roff_nr(ROFF_ARGS) |
| free(p); |
{ |
| |
char *key, *val; |
| |
size_t keysz; |
| |
int iv; |
| |
char sign; |
| |
|
| |
key = val = buf->buf + pos; |
| |
if (*key == '\0') |
| |
return ROFF_IGN; |
| |
|
| |
keysz = roff_getname(r, &val, ln, pos); |
| |
if (key[keysz] == '\\') |
| |
return ROFF_IGN; |
| |
key[keysz] = '\0'; |
| |
|
| |
sign = *val; |
| |
if (sign == '+' || sign == '-') |
| |
val++; |
| |
|
| |
if (roff_evalnum(r, ln, val, NULL, &iv, ROFFNUM_SCALE)) |
| |
roff_setreg(r, key, iv, sign); |
| |
|
| |
return ROFF_IGN; |
| } |
} |
| |
|
| |
static enum rofferr |
| |
roff_rr(ROFF_ARGS) |
| |
{ |
| |
struct roffreg *reg, **prev; |
| |
char *name, *cp; |
| |
size_t namesz; |
| |
|
| /* FIXME: accept only struct rofftree *. */ |
name = cp = buf->buf + pos; |
| /* ARGSUSED */ |
if (*name == '\0') |
| static int |
return ROFF_IGN; |
| roff_Dd(ROFFCALL_ARGS) |
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 enum rofferr |
| |
roff_rm(ROFF_ARGS) |
| { |
{ |
| |
const char *name; |
| |
char *cp; |
| |
size_t namesz; |
| |
|
| assert(ROFF_PRELUDE & tree->state); |
cp = buf->buf + pos; |
| if (ROFF_PRELUDE_Dt & tree->state || |
while (*cp != '\0') { |
| ROFF_PRELUDE_Dd & tree->state) { |
name = cp; |
| warnx("%s: prelude `Dd' out-of-order (line %zu)", |
namesz = roff_getname(r, &cp, ln, (int)(cp - buf->buf)); |
| tree->rbuf->name, tree->rbuf->line); |
roff_setstrn(&r->strtab, name, namesz, NULL, 0, 0); |
| return(0); |
if (name[namesz] == '\\') |
| |
break; |
| } |
} |
| |
return ROFF_IGN; |
| |
} |
| |
|
| assert(NULL == tree->last); |
static enum rofferr |
| tree->state |= ROFF_PRELUDE_Dd; |
roff_it(ROFF_ARGS) |
| |
{ |
| |
int iv; |
| |
|
| return(1); |
/* Parse the number of lines. */ |
| |
|
| |
if ( ! roff_evalnum(r, ln, buf->buf, &pos, &iv, 0)) { |
| |
mandoc_msg(MANDOCERR_IT_NONUM, r->parse, |
| |
ln, ppos, buf->buf + 1); |
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
while (isspace((unsigned char)buf->buf[pos])) |
| |
pos++; |
| |
|
| |
/* |
| |
* Arm the input line trap. |
| |
* Special-casing "an-trap" is an ugly workaround to cope |
| |
* with DocBook stupidly fiddling with man(7) internals. |
| |
*/ |
| |
|
| |
roffit_lines = iv; |
| |
roffit_macro = mandoc_strdup(iv != 1 || |
| |
strcmp(buf->buf + pos, "an-trap") ? |
| |
buf->buf + pos : "br"); |
| |
return ROFF_IGN; |
| } |
} |
| |
|
| |
static enum rofferr |
| |
roff_Dd(ROFF_ARGS) |
| |
{ |
| |
const char *const *cp; |
| |
|
| /* ARGSUSED */ |
if ((r->options & (MPARSE_MDOC | MPARSE_QUICK)) == 0) |
| static int |
for (cp = __mdoc_reserved; *cp; cp++) |
| roff_Dt(ROFFCALL_ARGS) |
roff_setstr(r, *cp, NULL, 0); |
| |
|
| |
if (r->format == 0) |
| |
r->format = MPARSE_MDOC; |
| |
|
| |
return ROFF_CONT; |
| |
} |
| |
|
| |
static enum rofferr |
| |
roff_TH(ROFF_ARGS) |
| { |
{ |
| |
const char *const *cp; |
| |
|
| assert(ROFF_PRELUDE & tree->state); |
if ((r->options & MPARSE_QUICK) == 0) |
| if ( ! (ROFF_PRELUDE_Dd & tree->state) || |
for (cp = __man_reserved; *cp; cp++) |
| (ROFF_PRELUDE_Dt & tree->state)) { |
roff_setstr(r, *cp, NULL, 0); |
| warnx("%s: prelude `Dt' out-of-order (line %zu)", |
|
| tree->rbuf->name, tree->rbuf->line); |
if (r->format == 0) |
| return(0); |
r->format = MPARSE_MAN; |
| |
|
| |
return ROFF_CONT; |
| |
} |
| |
|
| |
static enum rofferr |
| |
roff_TE(ROFF_ARGS) |
| |
{ |
| |
|
| |
if (NULL == r->tbl) |
| |
mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse, |
| |
ln, ppos, "TE"); |
| |
else if ( ! tbl_end(&r->tbl)) { |
| |
free(buf->buf); |
| |
buf->buf = mandoc_strdup(".sp"); |
| |
buf->sz = 4; |
| |
return ROFF_REPARSE; |
| } |
} |
| |
return ROFF_IGN; |
| |
} |
| |
|
| assert(NULL == tree->last); |
static enum rofferr |
| tree->state |= ROFF_PRELUDE_Dt; |
roff_T_(ROFF_ARGS) |
| |
{ |
| |
|
| return(1); |
if (NULL == r->tbl) |
| |
mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse, |
| |
ln, ppos, "T&"); |
| |
else |
| |
tbl_restart(ln, ppos, r->tbl); |
| |
|
| |
return ROFF_IGN; |
| } |
} |
| |
|
| |
/* |
| |
* Handle in-line equation delimiters. |
| |
*/ |
| |
static enum rofferr |
| |
roff_eqndelim(struct roff *r, struct buf *buf, int pos) |
| |
{ |
| |
char *cp1, *cp2; |
| |
const char *bef_pr, *bef_nl, *mac, *aft_nl, *aft_pr; |
| |
|
| /* ARGSUSED */ |
/* |
| static int |
* Outside equations, look for an opening delimiter. |
| roff_Os(ROFFCALL_ARGS) |
* 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 |
| |
mac = ".EN"; |
| |
|
| |
/* 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; |
| |
} |
| |
|
| |
static enum rofferr |
| |
roff_EQ(ROFF_ARGS) |
| { |
{ |
| |
struct eqn_node *e; |
| |
|
| if (ROFF_EXIT == type) { |
assert(r->eqn == NULL); |
| roffnode_free(ROFF_Os, tree); |
e = eqn_alloc(ppos, ln, r->parse); |
| return(1); |
|
| } |
|
| |
|
| assert(ROFF_PRELUDE & tree->state); |
if (r->last_eqn) { |
| if ( ! (ROFF_PRELUDE_Dt & tree->state) || |
r->last_eqn->next = e; |
| ! (ROFF_PRELUDE_Dd & tree->state)) { |
e->delim = r->last_eqn->delim; |
| warnx("%s: prelude `Os' out-of-order (line %zu)", |
e->odelim = r->last_eqn->odelim; |
| tree->rbuf->name, tree->rbuf->line); |
e->cdelim = r->last_eqn->cdelim; |
| return(0); |
} else |
| |
r->first_eqn = r->last_eqn = e; |
| |
|
| |
r->eqn = r->last_eqn = e; |
| |
|
| |
if (buf->buf[pos] != '\0') |
| |
mandoc_vmsg(MANDOCERR_ARG_SKIP, r->parse, ln, pos, |
| |
".EQ %s", buf->buf + pos); |
| |
|
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
static enum rofferr |
| |
roff_EN(ROFF_ARGS) |
| |
{ |
| |
|
| |
mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse, ln, ppos, "EN"); |
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
static enum rofferr |
| |
roff_TS(ROFF_ARGS) |
| |
{ |
| |
struct tbl_node *tbl; |
| |
|
| |
if (r->tbl) { |
| |
mandoc_msg(MANDOCERR_BLK_BROKEN, r->parse, |
| |
ln, ppos, "TS breaks TS"); |
| |
tbl_end(&r->tbl); |
| } |
} |
| |
|
| assert(NULL == tree->last); |
tbl = tbl_alloc(ppos, ln, r->parse); |
| if (NULL == roffnode_new(ROFF_Os, tree->rbuf->line, tree)) |
|
| return(0); |
|
| |
|
| tree->state |= ROFF_PRELUDE_Os; |
if (r->last_tbl) |
| tree->state &= ~ROFF_PRELUDE; |
r->last_tbl->next = tbl; |
| tree->state |= ROFF_BODY; |
else |
| |
r->first_tbl = r->last_tbl = tbl; |
| |
|
| return(1); |
r->tbl = r->last_tbl = tbl; |
| |
return ROFF_IGN; |
| } |
} |
| |
|
| |
static enum rofferr |
| |
roff_onearg(ROFF_ARGS) |
| |
{ |
| |
struct roff_node *n; |
| |
char *cp; |
| |
|
| /* ARGUSED */ |
roff_elem_alloc(r->man, ln, ppos, tok); |
| static int |
n = r->man->last; |
| roffnextopt(const char ***in, char **val) |
|
| |
cp = buf->buf + pos; |
| |
if (*cp != '\0') { |
| |
while (*cp != '\0' && *cp != ' ') |
| |
cp++; |
| |
while (*cp == ' ') |
| |
*cp++ = '\0'; |
| |
if (*cp != '\0') |
| |
mandoc_vmsg(MANDOCERR_ARG_EXCESS, |
| |
r->parse, ln, cp - buf->buf, |
| |
"%s ... %s", roff_name[tok], cp); |
| |
roff_word_alloc(r->man, ln, pos, buf->buf + pos); |
| |
} |
| |
|
| |
n->flags |= NODE_LINE | NODE_VALID | NODE_ENDED; |
| |
r->man->last = n; |
| |
r->man->next = ROFF_NEXT_SIBLING; |
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
static enum rofferr |
| |
roff_manyarg(ROFF_ARGS) |
| { |
{ |
| const char *arg, **argv; |
struct roff_node *n; |
| int v; |
char *sp, *ep; |
| |
|
| *val = NULL; |
roff_elem_alloc(r->man, ln, ppos, tok); |
| argv = *in; |
n = r->man->last; |
| assert(argv); |
|
| |
|
| if (NULL == (arg = *argv)) |
for (sp = ep = buf->buf + pos; *sp != '\0'; sp = ep) { |
| return(-1); |
while (*ep != '\0' && *ep != ' ') |
| if ('-' != *arg) |
ep++; |
| return(-1); |
while (*ep == ' ') |
| if (ROFF_ARGMAX == (v = rofffindarg(&arg[1]))) |
*ep++ = '\0'; |
| return(-1); |
roff_word_alloc(r->man, ln, sp - buf->buf, sp); |
| if ( ! (ROFF_VALUE & tokenargs[v].flags)) |
} |
| return(v); |
|
| |
|
| *in = ++argv; |
n->flags |= NODE_LINE | NODE_VALID | NODE_ENDED; |
| |
r->man->last = n; |
| |
r->man->next = ROFF_NEXT_SIBLING; |
| |
return ROFF_IGN; |
| |
} |
| |
|
| /* FIXME: what if this looks like a roff token or argument? */ |
static enum rofferr |
| |
roff_br(ROFF_ARGS) |
| |
{ |
| |
roff_elem_alloc(r->man, ln, ppos, ROFF_br); |
| |
if (buf->buf[pos] != '\0') |
| |
mandoc_vmsg(MANDOCERR_ARG_SKIP, r->parse, ln, pos, |
| |
"%s %s", roff_name[tok], buf->buf + pos); |
| |
r->man->last->flags |= NODE_LINE | NODE_VALID | NODE_ENDED; |
| |
r->man->next = ROFF_NEXT_SIBLING; |
| |
return ROFF_IGN; |
| |
} |
| |
|
| return(*argv ? v : ROFF_ARGMAX); |
static enum rofferr |
| |
roff_cc(ROFF_ARGS) |
| |
{ |
| |
const char *p; |
| |
|
| |
p = buf->buf + pos; |
| |
|
| |
if (*p == '\0' || (r->control = *p++) == '.') |
| |
r->control = 0; |
| |
|
| |
if (*p != '\0') |
| |
mandoc_vmsg(MANDOCERR_ARG_EXCESS, r->parse, |
| |
ln, p - buf->buf, "cc ... %s", p); |
| |
|
| |
return ROFF_IGN; |
| } |
} |
| |
|
| |
static enum rofferr |
| |
roff_tr(ROFF_ARGS) |
| |
{ |
| |
const char *p, *first, *second; |
| |
size_t fsz, ssz; |
| |
enum mandoc_esc esc; |
| |
|
| /* ARGSUSED */ |
p = buf->buf + pos; |
| static int |
|
| roff_layout(ROFFCALL_ARGS) |
if (*p == '\0') { |
| |
mandoc_msg(MANDOCERR_REQ_EMPTY, r->parse, 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, r->parse, |
| |
ln, (int)(p - buf->buf), 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, r->parse, |
| |
ln, (int)(p - buf->buf), second); |
| |
return ROFF_IGN; |
| |
} |
| |
ssz = (size_t)(p - second); |
| |
} else if (*second == '\0') { |
| |
mandoc_vmsg(MANDOCERR_TR_ODD, r->parse, |
| |
ln, 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; |
| |
} |
| |
|
| |
static enum rofferr |
| |
roff_so(ROFF_ARGS) |
| { |
{ |
| int i, c, argcp[ROFF_MAXARG]; |
char *name, *cp; |
| char *v, *argvp[ROFF_MAXARG]; |
|
| |
|
| if (ROFF_EXIT == type) { |
name = buf->buf + pos; |
| roffnode_free(tok, tree); |
mandoc_vmsg(MANDOCERR_SO, r->parse, ln, ppos, "so %s", name); |
| return((*tree->roffblkout[tok])(tok)); |
|
| } |
|
| |
|
| i = 0; |
/* |
| while (-1 != (c = roffnextopt(&argv, &v))) { |
* Handle `so'. Be EXTREMELY careful, as we shouldn't be |
| if (ROFF_ARGMAX == c) { |
* opening anything that's not in our cwd or anything beneath |
| warnx("%s: error parsing `%s' args (line %zu)", |
* it. Thus, explicitly disallow traversing up the file-system |
| tree->rbuf->name, |
* or using absolute paths. |
| tokens[tok].name, |
*/ |
| tree->rbuf->line); |
|
| return(0); |
if (*name == '/' || strstr(name, "../") || strstr(name, "/..")) { |
| |
mandoc_vmsg(MANDOCERR_SO_PATH, r->parse, ln, ppos, |
| |
".so %s", name); |
| |
buf->sz = mandoc_asprintf(&cp, |
| |
".sp\nSee the file %s.\n.sp", name) + 1; |
| |
free(buf->buf); |
| |
buf->buf = cp; |
| |
*offs = 0; |
| |
return ROFF_REPARSE; |
| |
} |
| |
|
| |
*offs = pos; |
| |
return ROFF_SO; |
| |
} |
| |
|
| |
/* --- user defined strings and macros ------------------------------------ */ |
| |
|
| |
static enum rofferr |
| |
roff_userdef(ROFF_ARGS) |
| |
{ |
| |
const char *arg[9], *ap; |
| |
char *cp, *n1, *n2; |
| |
int expand_count, i, ib, ie; |
| |
size_t asz, rsz; |
| |
|
| |
/* |
| |
* Collect pointers to macro argument strings |
| |
* and NUL-terminate them. |
| |
*/ |
| |
|
| |
r->argc = 0; |
| |
cp = buf->buf + pos; |
| |
for (i = 0; i < 9; i++) { |
| |
if (*cp == '\0') |
| |
arg[i] = ""; |
| |
else { |
| |
arg[i] = mandoc_getarg(r->parse, &cp, ln, &pos); |
| |
r->argc = i + 1; |
| } |
} |
| argcp[i] = c; |
|
| argvp[i] = v; |
|
| argv++; |
|
| } |
} |
| |
|
| if (NULL == roffnode_new(tok, tree->rbuf->line, tree)) |
/* |
| return(0); |
* Expand macro arguments. |
| |
*/ |
| |
|
| if ( ! (*tree->roffin[tok])(tok, argcp, argvp)) |
buf->sz = strlen(r->current_string) + 1; |
| return(0); |
n1 = n2 = cp = mandoc_malloc(buf->sz); |
| |
memcpy(n1, r->current_string, buf->sz); |
| |
expand_count = 0; |
| |
while (*cp != '\0') { |
| |
|
| if ( ! (ROFF_PARSED & tokens[tok].flags)) { |
/* Scan ahead for the next argument invocation. */ |
| /* TODO: print all tokens. */ |
|
| |
|
| if ( ! ((*tree->roffout[tok])(tok))) |
if (*cp++ != '\\') |
| return(0); |
continue; |
| return((*tree->roffblkin[tok])(tok)); |
if (*cp++ != '$') |
| |
continue; |
| |
if (*cp == '*') { /* \\$* inserts all arguments */ |
| |
ib = 0; |
| |
ie = r->argc - 1; |
| |
} else { /* \\$1 .. \\$9 insert one argument */ |
| |
ib = ie = *cp - '1'; |
| |
if (ib < 0 || ib > 8) |
| |
continue; |
| |
} |
| |
cp -= 2; |
| |
|
| |
/* |
| |
* Prevent infinite recursion. |
| |
*/ |
| |
|
| |
if (cp >= n2) |
| |
expand_count = 1; |
| |
else if (++expand_count > EXPAND_LIMIT) { |
| |
mandoc_msg(MANDOCERR_ROFFLOOP, r->parse, |
| |
ln, (int)(cp - n1), NULL); |
| |
free(buf->buf); |
| |
buf->buf = n1; |
| |
return ROFF_IGN; |
| |
} |
| |
|
| |
/* |
| |
* Determine the size of the expanded argument, |
| |
* taking escaping of quotes into account. |
| |
*/ |
| |
|
| |
asz = ie > ib ? ie - ib : 0; /* for blanks */ |
| |
for (i = ib; i <= ie; i++) { |
| |
for (ap = arg[i]; *ap != '\0'; ap++) { |
| |
asz++; |
| |
if (*ap == '"') |
| |
asz += 3; |
| |
} |
| |
} |
| |
if (asz != 3) { |
| |
|
| |
/* |
| |
* Determine the size of the rest of the |
| |
* unexpanded macro, including the NUL. |
| |
*/ |
| |
|
| |
rsz = buf->sz - (cp - n1) - 3; |
| |
|
| |
/* |
| |
* When shrinking, move before |
| |
* releasing the storage. |
| |
*/ |
| |
|
| |
if (asz < 3) |
| |
memmove(cp + asz, cp + 3, rsz); |
| |
|
| |
/* |
| |
* Resize the storage for the macro |
| |
* and readjust the parse pointer. |
| |
*/ |
| |
|
| |
buf->sz += asz - 3; |
| |
n2 = mandoc_realloc(n1, buf->sz); |
| |
cp = n2 + (cp - n1); |
| |
n1 = n2; |
| |
|
| |
/* |
| |
* When growing, make room |
| |
* for the expanded argument. |
| |
*/ |
| |
|
| |
if (asz > 3) |
| |
memmove(cp + asz, cp + 3, rsz); |
| |
} |
| |
|
| |
/* Copy the expanded argument, escaping quotes. */ |
| |
|
| |
n2 = cp; |
| |
for (i = ib; i <= ie; i++) { |
| |
for (ap = arg[i]; *ap != '\0'; ap++) { |
| |
if (*ap == '"') { |
| |
memcpy(n2, "\\(dq", 4); |
| |
n2 += 4; |
| |
} else |
| |
*n2++ = *ap; |
| |
} |
| |
if (i < ie) |
| |
*n2++ = ' '; |
| |
} |
| } |
} |
| |
|
| while (*argv) { |
/* |
| if (2 >= strlen(*argv) && ROFF_MAX != |
* Replace the macro invocation |
| (c = rofffindcallable(*argv))) |
* by the expanded macro. |
| if ( ! (*tokens[c].cb)(c, tree, |
*/ |
| argv + 1, ROFF_ENTER)) |
|
| return(0); |
|
| |
|
| /* TODO: print token. */ |
free(buf->buf); |
| argv++; |
buf->buf = n1; |
| |
*offs = 0; |
| |
|
| |
return buf->sz > 1 && buf->buf[buf->sz - 2] == '\n' ? |
| |
ROFF_REPARSE : ROFF_APPEND; |
| |
} |
| |
|
| |
static size_t |
| |
roff_getname(struct roff *r, char **cpp, int ln, int pos) |
| |
{ |
| |
char *name, *cp; |
| |
size_t namesz; |
| |
|
| |
name = *cpp; |
| |
if ('\0' == *name) |
| |
return 0; |
| |
|
| |
/* Read until end of name and terminate it with NUL. */ |
| |
for (cp = name; 1; cp++) { |
| |
if ('\0' == *cp || ' ' == *cp) { |
| |
namesz = cp - name; |
| |
break; |
| |
} |
| |
if ('\\' != *cp) |
| |
continue; |
| |
namesz = cp - name; |
| |
if ('{' == cp[1] || '}' == cp[1]) |
| |
break; |
| |
cp++; |
| |
if ('\\' == *cp) |
| |
continue; |
| |
mandoc_vmsg(MANDOCERR_NAMESC, r->parse, ln, pos, |
| |
"%.*s", (int)(cp - name + 1), name); |
| |
mandoc_escape((const char **)&cp, NULL, NULL); |
| |
break; |
| } |
} |
| |
|
| if ( ! ((*tree->roffout[tok])(tok))) |
/* Read past spaces. */ |
| return(0); |
while (' ' == *cp) |
| |
cp++; |
| |
|
| return((*tree->roffblkin[tok])(tok)); |
*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 |
| |
roff_setstr(struct roff *r, const char *name, const char *string, |
| |
int append) |
| |
{ |
| |
|
| /* ARGSUSED */ |
roff_setstrn(&r->strtab, name, strlen(name), string, |
| static int |
string ? strlen(string) : 0, append); |
| roff_text(ROFFCALL_ARGS) |
} |
| |
|
| |
static void |
| |
roff_setstrn(struct roffkv **r, const char *name, size_t namesz, |
| |
const char *string, size_t stringsz, int append) |
| { |
{ |
| int i, c, argcp[ROFF_MAXARG]; |
struct roffkv *n; |
| char *v, *argvp[ROFF_MAXARG]; |
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; |
| |
|
| |
if (NULL == n) { |
| |
/* Create a new string table entry. */ |
| |
n = mandoc_malloc(sizeof(struct roffkv)); |
| |
n->key.p = mandoc_strndup(name, namesz); |
| |
n->key.sz = namesz; |
| |
n->val.p = NULL; |
| |
n->val.sz = 0; |
| |
n->next = *r; |
| |
*r = n; |
| |
} else if (0 == append) { |
| |
free(n->val.p); |
| |
n->val.p = NULL; |
| |
n->val.sz = 0; |
| |
} |
| |
|
| |
if (NULL == string) |
| |
return; |
| |
|
| |
/* |
| |
* 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; |
i = 0; |
| while (-1 != (c = roffnextopt(&argv, &v))) { |
while (i < (int)stringsz) { |
| if (ROFF_ARGMAX == c) { |
/* |
| warnx("%s: error parsing `%s' args (line %zu)", |
* Rudimentary roff copy mode: |
| tree->rbuf->name, |
* Handle escaped backslashes. |
| tokens[tok].name, |
*/ |
| tree->rbuf->line); |
if ('\\' == string[i] && '\\' == string[i + 1]) |
| return(0); |
i++; |
| } |
*c++ = string[i++]; |
| argcp[i] = c; |
|
| argvp[i] = v; |
|
| argv++; |
|
| } |
} |
| |
|
| if ( ! (*tree->roffin[tok])(tok, argcp, argvp)) |
/* Append terminating bytes. */ |
| return(0); |
if (1 < append) |
| |
*c++ = '\n'; |
| |
|
| if ( ! (ROFF_PARSED & tokens[tok].flags)) { |
*c = '\0'; |
| /* TODO: print all tokens. */ |
n->val.sz = (int)(c - n->val.p); |
| return((*tree->roffout[tok])(tok)); |
} |
| |
|
| |
static const char * |
| |
roff_getstrn(const struct roff *r, const char *name, size_t len) |
| |
{ |
| |
const struct roffkv *n; |
| |
int i; |
| |
|
| |
for (n = r->strtab; n; n = n->next) |
| |
if (0 == strncmp(name, n->key.p, len) && |
| |
'\0' == n->key.p[(int)len]) |
| |
return n->val.p; |
| |
|
| |
for (i = 0; i < PREDEFS_MAX; i++) |
| |
if (0 == strncmp(name, predefs[i].name, len) && |
| |
'\0' == predefs[i].name[(int)len]) |
| |
return predefs[i].str; |
| |
|
| |
return NULL; |
| |
} |
| |
|
| |
static void |
| |
roff_freestr(struct roffkv *r) |
| |
{ |
| |
struct roffkv *n, *nn; |
| |
|
| |
for (n = r; n; n = nn) { |
| |
free(n->key.p); |
| |
free(n->val.p); |
| |
nn = n->next; |
| |
free(n); |
| } |
} |
| |
} |
| |
|
| while (*argv) { |
/* --- accessors and utility functions ------------------------------------ */ |
| if (2 >= strlen(*argv) && ROFF_MAX != |
|
| (c = rofffindcallable(*argv))) |
|
| if ( ! (*tokens[c].cb)(c, tree, |
|
| argv + 1, ROFF_ENTER)) |
|
| return(0); |
|
| |
|
| /* TODO: print token. */ |
const struct tbl_span * |
| argv++; |
roff_span(const struct roff *r) |
| |
{ |
| |
|
| |
return r->tbl ? tbl_span(r->tbl) : NULL; |
| |
} |
| |
|
| |
const struct eqn * |
| |
roff_eqn(const struct roff *r) |
| |
{ |
| |
|
| |
return r->last_eqn ? &r->last_eqn->eqn : NULL; |
| |
} |
| |
|
| |
/* |
| |
* 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_res() was called. |
| |
*/ |
| |
sz = (int)(p - pp); |
| |
res = mandoc_realloc(res, ssz + sz + 1); |
| |
memcpy(res + ssz, pp, sz); |
| |
ssz += sz; |
| } |
} |
| |
|
| return((*tree->roffout[tok])(tok)); |
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 (0 != r->control && cp[pos] == r->control) |
| |
pos++; |
| |
else if (0 != r->control) |
| |
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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