| version 1.26, 2008/12/01 09:25:18 |
version 1.200, 2014/03/20 02:57:28 |
|
|
| /* $Id$ */ |
/* $Id$ */ |
| /* |
/* |
| * Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se> |
* Copyright (c) 2010, 2011, 2012 Kristaps Dzonsons <kristaps@bsd.lv> |
| |
* Copyright (c) 2010-2014 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. |
|
| */ |
*/ |
| |
#ifdef HAVE_CONFIG_H |
| |
#include "config.h" |
| |
#endif |
| |
|
| #include <assert.h> |
#include <assert.h> |
| #include <ctype.h> |
#include <ctype.h> |
| #include <err.h> |
|
| #include <stdarg.h> |
|
| #include <stdlib.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 "libroff.h" |
| |
#include "libmandoc.h" |
| |
|
| /* FIXME: warn if Pp occurs before/after Sh etc. (see mdoc.samples). */ |
/* Maximum number of nested if-else conditionals. */ |
| |
#define RSTACK_MAX 128 |
| |
|
| /* FIXME: warn about "X section only" macros. */ |
/* Maximum number of string expansions per line, to break infinite loops. */ |
| |
#define EXPAND_LIMIT 1000 |
| |
|
| /* FIXME: warn about empty lists. */ |
enum rofft { |
| |
ROFF_ad, |
| |
ROFF_am, |
| |
ROFF_ami, |
| |
ROFF_am1, |
| |
ROFF_as, |
| |
ROFF_cc, |
| |
ROFF_ce, |
| |
ROFF_de, |
| |
ROFF_dei, |
| |
ROFF_de1, |
| |
ROFF_ds, |
| |
ROFF_el, |
| |
ROFF_fam, |
| |
ROFF_hw, |
| |
ROFF_hy, |
| |
ROFF_ie, |
| |
ROFF_if, |
| |
ROFF_ig, |
| |
ROFF_it, |
| |
ROFF_ne, |
| |
ROFF_nh, |
| |
ROFF_nr, |
| |
ROFF_ns, |
| |
ROFF_ps, |
| |
ROFF_rm, |
| |
ROFF_so, |
| |
ROFF_ta, |
| |
ROFF_tr, |
| |
ROFF_Dd, |
| |
ROFF_TH, |
| |
ROFF_TS, |
| |
ROFF_TE, |
| |
ROFF_T_, |
| |
ROFF_EQ, |
| |
ROFF_EN, |
| |
ROFF_cblock, |
| |
ROFF_USERDEF, |
| |
ROFF_MAX |
| |
}; |
| |
|
| /* FIXME: roff_layout and roff_text have identical-ish lower bodies. */ |
/* |
| |
* An incredibly-simple string buffer. |
| |
*/ |
| |
struct roffstr { |
| |
char *p; /* nil-terminated buffer */ |
| |
size_t sz; /* saved strlen(p) */ |
| |
}; |
| |
|
| /* FIXME: NAME section needs specific elements. */ |
/* |
| |
* A key-value roffstr pair as part of a singly-linked list. |
| |
*/ |
| |
struct roffkv { |
| |
struct roffstr key; |
| |
struct roffstr val; |
| |
struct roffkv *next; /* next in list */ |
| |
}; |
| |
|
| #define ROFF_MAXARG 32 |
/* |
| |
* A single number register as part of a singly-linked list. |
| |
*/ |
| |
struct roffreg { |
| |
struct roffstr key; |
| |
int val; |
| |
struct roffreg *next; |
| |
}; |
| |
|
| enum roffd { |
struct roff { |
| ROFF_ENTER = 0, |
struct mparse *parse; /* parse point */ |
| ROFF_EXIT |
int options; /* parse options */ |
| |
struct roffnode *last; /* leaf of stack */ |
| |
int rstack[RSTACK_MAX]; /* stack of !`ie' rules */ |
| |
char control; /* control character */ |
| |
int rstackpos; /* position in rstack */ |
| |
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 */ |
| }; |
}; |
| |
|
| enum rofftype { |
struct roffnode { |
| ROFF_COMMENT, |
enum rofft tok; /* type of node */ |
| ROFF_TEXT, |
struct roffnode *parent; /* up one in stack */ |
| ROFF_LAYOUT, |
int line; /* parse line */ |
| ROFF_SPECIAL |
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 */ |
| }; |
}; |
| |
|
| #define ROFFCALL_ARGS \ |
#define ROFF_ARGS struct roff *r, /* parse ctx */ \ |
| int tok, struct rofftree *tree, \ |
enum rofft tok, /* tok of macro */ \ |
| char *argv[], enum roffd type |
char **bufp, /* input buffer */ \ |
| |
size_t *szp, /* size of input buffer */ \ |
| |
int ln, /* parse line */ \ |
| |
int ppos, /* original pos in buffer */ \ |
| |
int pos, /* current pos in buffer */ \ |
| |
int *offs /* reset offset of buffer data */ |
| |
|
| struct rofftree; |
typedef enum rofferr (*roffproc)(ROFF_ARGS); |
| |
|
| struct rofftok { |
struct roffmac { |
| int (*cb)(ROFFCALL_ARGS); /* Callback. */ |
const char *name; /* macro name */ |
| const int *args; /* Args (or NULL). */ |
roffproc proc; /* process new macro */ |
| const int *parents; |
roffproc text; /* process as child text of macro */ |
| const int *children; |
roffproc sub; /* process as child of macro */ |
| int ctx; |
int flags; |
| enum rofftype type; /* Type of macro. */ |
#define ROFFMAC_STRUCT (1 << 0) /* always interpret */ |
| int flags; |
struct roffmac *next; |
| #define ROFF_PARSED (1 << 0) /* "Parsed". */ |
|
| #define ROFF_CALLABLE (1 << 1) /* "Callable". */ |
|
| #define ROFF_SHALLOW (1 << 2) /* Nesting block. */ |
|
| }; |
}; |
| |
|
| struct roffarg { |
struct predef { |
| int flags; |
const char *name; /* predefined input name */ |
| #define ROFF_VALUE (1 << 0) /* Has a value. */ |
const char *str; /* replacement symbol */ |
| }; |
}; |
| |
|
| struct roffnode { |
#define PREDEF(__name, __str) \ |
| int tok; /* Token id. */ |
{ (__name), (__str) }, |
| struct roffnode *parent; /* Parent (or NULL). */ |
|
| }; |
|
| |
|
| struct rofftree { |
static enum rofft roffhash_find(const char *, size_t); |
| struct roffnode *last; /* Last parsed node. */ |
static void roffhash_init(void); |
| char *cur; |
static void roffnode_cleanscope(struct roff *); |
| |
static void roffnode_pop(struct roff *); |
| |
static void roffnode_push(struct roff *, enum rofft, |
| |
const char *, int, int); |
| |
static enum rofferr roff_block(ROFF_ARGS); |
| |
static enum rofferr roff_block_text(ROFF_ARGS); |
| |
static enum rofferr roff_block_sub(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 int roff_evalcond(const char *, 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 char *roff_getname(struct roff *, char **, int, int); |
| |
static int roff_getnum(const char *, int *, int *); |
| |
static int roff_getop(const char *, int *, char *); |
| |
static int roff_getregn(const struct roff *, |
| |
const char *, size_t); |
| |
static int roff_getregro(const char *name); |
| |
static const char *roff_getstrn(const struct roff *, |
| |
const char *, size_t); |
| |
static enum rofferr roff_it(ROFF_ARGS); |
| |
static enum rofferr roff_line_ignore(ROFF_ARGS); |
| |
static enum rofferr roff_nr(ROFF_ARGS); |
| |
static void roff_openeqn(struct roff *, const char *, |
| |
int, int, const char *); |
| |
static enum rofft roff_parse(struct roff *, const char *, int *); |
| |
static enum rofferr roff_parsetext(char **, size_t *, int, int *); |
| |
static enum rofferr roff_res(struct roff *, |
| |
char **, size_t *, int, int); |
| |
static enum rofferr roff_rm(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_userdef(ROFF_ARGS); |
| |
|
| time_t date; /* `Dd' results. */ |
/* See roffhash_find() */ |
| char os[64]; /* `Os' results. */ |
|
| char title[64]; /* `Dt' results. */ |
|
| char section[64]; /* `Dt' results. */ |
|
| char volume[64]; /* `Dt' results. */ |
|
| |
|
| int state; |
#define ASCII_HI 126 |
| #define ROFF_PRELUDE (1 << 1) /* In roff prelude. */ |
#define ASCII_LO 33 |
| #define ROFF_PRELUDE_Os (1 << 2) /* `Os' is parsed. */ |
#define HASHWIDTH (ASCII_HI - ASCII_LO + 1) |
| #define ROFF_PRELUDE_Dt (1 << 3) /* `Dt' is parsed. */ |
|
| #define ROFF_PRELUDE_Dd (1 << 4) /* `Dd' is parsed. */ |
|
| #define ROFF_BODY (1 << 5) /* In roff body. */ |
|
| |
|
| struct roffcb cb; |
static struct roffmac *hash[HASHWIDTH]; |
| void *arg; |
|
| |
static struct roffmac roffs[ROFF_MAX] = { |
| |
{ "ad", roff_line_ignore, NULL, NULL, 0, NULL }, |
| |
{ "am", roff_block, roff_block_text, roff_block_sub, 0, NULL }, |
| |
{ "ami", roff_block, roff_block_text, roff_block_sub, 0, NULL }, |
| |
{ "am1", roff_block, roff_block_text, roff_block_sub, 0, NULL }, |
| |
{ "as", roff_ds, NULL, NULL, 0, NULL }, |
| |
{ "cc", roff_cc, NULL, NULL, 0, NULL }, |
| |
{ "ce", roff_line_ignore, NULL, NULL, 0, NULL }, |
| |
{ "de", roff_block, roff_block_text, roff_block_sub, 0, NULL }, |
| |
{ "dei", roff_block, roff_block_text, roff_block_sub, 0, NULL }, |
| |
{ "de1", roff_block, roff_block_text, roff_block_sub, 0, NULL }, |
| |
{ "ds", roff_ds, NULL, NULL, 0, NULL }, |
| |
{ "el", roff_cond, roff_cond_text, roff_cond_sub, ROFFMAC_STRUCT, NULL }, |
| |
{ "fam", roff_line_ignore, NULL, NULL, 0, NULL }, |
| |
{ "hw", roff_line_ignore, NULL, NULL, 0, NULL }, |
| |
{ "hy", roff_line_ignore, NULL, NULL, 0, NULL }, |
| |
{ "ie", roff_cond, roff_cond_text, roff_cond_sub, ROFFMAC_STRUCT, NULL }, |
| |
{ "if", roff_cond, roff_cond_text, roff_cond_sub, ROFFMAC_STRUCT, NULL }, |
| |
{ "ig", roff_block, roff_block_text, roff_block_sub, 0, NULL }, |
| |
{ "it", roff_it, NULL, NULL, 0, NULL }, |
| |
{ "ne", roff_line_ignore, NULL, NULL, 0, NULL }, |
| |
{ "nh", roff_line_ignore, NULL, NULL, 0, NULL }, |
| |
{ "nr", roff_nr, NULL, NULL, 0, NULL }, |
| |
{ "ns", roff_line_ignore, NULL, NULL, 0, NULL }, |
| |
{ "ps", roff_line_ignore, NULL, NULL, 0, NULL }, |
| |
{ "rm", roff_rm, NULL, NULL, 0, NULL }, |
| |
{ "so", roff_so, NULL, NULL, 0, NULL }, |
| |
{ "ta", roff_line_ignore, NULL, NULL, 0, NULL }, |
| |
{ "tr", roff_tr, NULL, NULL, 0, NULL }, |
| |
{ "Dd", roff_Dd, NULL, NULL, 0, NULL }, |
| |
{ "TH", roff_TH, NULL, NULL, 0, NULL }, |
| |
{ "TS", roff_TS, NULL, NULL, 0, NULL }, |
| |
{ "TE", roff_TE, NULL, NULL, 0, NULL }, |
| |
{ "T&", roff_T_, NULL, NULL, 0, NULL }, |
| |
{ "EQ", roff_EQ, NULL, NULL, 0, NULL }, |
| |
{ "EN", roff_EN, NULL, NULL, 0, NULL }, |
| |
{ ".", roff_cblock, NULL, NULL, 0, NULL }, |
| |
{ NULL, roff_userdef, NULL, NULL, 0, NULL }, |
| }; |
}; |
| |
|
| static int roff_Dd(ROFFCALL_ARGS); |
/* not currently implemented: Ds em Eq LP Me PP pp Or Rd Sf SH */ |
| static int roff_Dt(ROFFCALL_ARGS); |
const char *const __mdoc_reserved[] = { |
| static int roff_Os(ROFFCALL_ARGS); |
"Ac", "Ad", "An", "Ao", "Ap", "Aq", "Ar", "At", |
| #ifdef notyet |
"Bc", "Bd", "Bf", "Bk", "Bl", "Bo", "Bq", |
| static int roff_Ns(ROFFCALL_ARGS); |
"Brc", "Bro", "Brq", "Bsx", "Bt", "Bx", |
| #endif |
"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 |
| |
}; |
| |
|
| static int roff_layout(ROFFCALL_ARGS); |
/* not currently implemented: BT DE DS ME MT PT SY TQ YS */ |
| static int roff_text(ROFFCALL_ARGS); |
const char *const __man_reserved[] = { |
| static int roff_comment(ROFFCALL_ARGS); |
"AT", "B", "BI", "BR", "DT", |
| static int roff_close(ROFFCALL_ARGS); |
"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 |
| |
}; |
| |
|
| static struct roffnode *roffnode_new(int, struct rofftree *); |
/* Array of injected predefined strings. */ |
| static void roffnode_free(struct rofftree *); |
#define PREDEFS_MAX 38 |
| |
static const struct predef predefs[PREDEFS_MAX] = { |
| |
#include "predefs.in" |
| |
}; |
| |
|
| static void roff_warn(const struct rofftree *, |
/* See roffhash_find() */ |
| const char *, char *, ...); |
#define ROFF_HASH(p) (p[0] - ASCII_LO) |
| static void roff_err(const struct rofftree *, |
|
| const char *, char *, ...); |
|
| |
|
| static int roffscan(int, const int *); |
static int roffit_lines; /* number of lines to delay */ |
| static int rofffindtok(const char *); |
static char *roffit_macro; /* nil-terminated macro line */ |
| static int rofffindarg(const char *); |
|
| static int rofffindcallable(const char *); |
|
| static int roffargs(const struct rofftree *, |
|
| int, char *, char **); |
|
| static int roffargok(int, int); |
|
| static int roffnextopt(const struct rofftree *, |
|
| int, char ***, char **); |
|
| static int roffparse(struct rofftree *, char *); |
|
| static int textparse(const struct rofftree *, char *); |
|
| |
|
| |
static void |
| |
roffhash_init(void) |
| |
{ |
| |
struct roffmac *n; |
| |
int buc, i; |
| |
|
| static const int roffarg_An[] = { ROFF_Split, ROFF_Nosplit, |
for (i = 0; i < (int)ROFF_USERDEF; i++) { |
| ROFF_ARGMAX }; |
assert(roffs[i].name[0] >= ASCII_LO); |
| static const int roffarg_Bd[] = { ROFF_Ragged, ROFF_Unfilled, |
assert(roffs[i].name[0] <= ASCII_HI); |
| ROFF_Literal, ROFF_File, ROFF_Offset, ROFF_Filled, |
|
| ROFF_Compact, ROFF_ARGMAX }; |
|
| static const int roffarg_Bk[] = { ROFF_Words, ROFF_ARGMAX }; |
|
| static const int roffarg_Ex[] = { ROFF_Std, ROFF_ARGMAX }; |
|
| static const int roffarg_Rv[] = { ROFF_Std, ROFF_ARGMAX }; |
|
| static const int roffarg_Bl[] = { ROFF_Bullet, ROFF_Dash, |
|
| ROFF_Hyphen, ROFF_Item, ROFF_Enum, ROFF_Tag, ROFF_Diag, |
|
| ROFF_Hang, ROFF_Ohang, ROFF_Inset, ROFF_Column, ROFF_Offset, |
|
| ROFF_Width, ROFF_Compact, ROFF_ARGMAX }; |
|
| static const int roffarg_St[] = { |
|
| ROFF_p1003_1_88, ROFF_p1003_1_90, ROFF_p1003_1_96, |
|
| ROFF_p1003_1_2001, ROFF_p1003_1_2004, ROFF_p1003_1, |
|
| ROFF_p1003_1b, ROFF_p1003_1b_93, ROFF_p1003_1c_95, |
|
| ROFF_p1003_1g_2000, ROFF_p1003_2_92, ROFF_p1387_2_95, |
|
| ROFF_p1003_2, ROFF_p1387_2, ROFF_isoC_90, ROFF_isoC_amd1, |
|
| ROFF_isoC_tcor1, ROFF_isoC_tcor2, ROFF_isoC_99, ROFF_ansiC, |
|
| ROFF_ansiC_89, ROFF_ansiC_99, ROFF_ieee754, ROFF_iso8802_3, |
|
| ROFF_xpg3, ROFF_xpg4, ROFF_xpg4_2, ROFF_xpg4_3, ROFF_xbd5, |
|
| ROFF_xcu5, ROFF_xsh5, ROFF_xns5, ROFF_xns5_2d2_0, |
|
| ROFF_xcurses4_2, ROFF_susv2, ROFF_susv3, ROFF_svid4, |
|
| ROFF_ARGMAX }; |
|
| |
|
| static const int roffchild_Bl[] = { ROFF_It, ROFF_El, ROFF_MAX }; |
buc = ROFF_HASH(roffs[i].name); |
| static const int roffchild_Fo[] = { ROFF_Fa, ROFF_Fc, ROFF_MAX }; |
|
| static const int roffchild_Oo[] = { ROFF_Op, ROFF_Oc, ROFF_MAX }; |
|
| static const int roffchild_Rs[] = { ROFF_Re, ROFF__A, ROFF__B, |
|
| ROFF__D, ROFF__I, ROFF__J, ROFF__N, ROFF__O, ROFF__P, |
|
| ROFF__R, ROFF__T, ROFF__V, ROFF_MAX }; |
|
| |
|
| static const int roffparent_El[] = { ROFF_Bl, ROFF_It, ROFF_MAX }; |
if (NULL != (n = hash[buc])) { |
| static const int roffparent_Fc[] = { ROFF_Fo, ROFF_Fa, ROFF_MAX }; |
for ( ; n->next; n = n->next) |
| static const int roffparent_Oc[] = { ROFF_Oo, ROFF_Oc, ROFF_MAX }; |
/* Do nothing. */ ; |
| static const int roffparent_It[] = { ROFF_Bl, ROFF_It, ROFF_MAX }; |
n->next = &roffs[i]; |
| static const int roffparent_Re[] = { ROFF_Rs, ROFF_MAX }; |
} else |
| |
hash[buc] = &roffs[i]; |
| |
} |
| |
} |
| |
|
| /* Table of all known tokens. */ |
/* |
| static const struct rofftok tokens[ROFF_MAX] = { |
* Look up a roff token by its name. Returns ROFF_MAX if no macro by |
| {roff_comment, NULL, NULL, NULL, 0, ROFF_COMMENT, 0 }, /* \" */ |
* the nil-terminated string name could be found. |
| { roff_Dd, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Dd */ |
*/ |
| { roff_Dt, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Dt */ |
static enum rofft |
| { roff_Os, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Os */ |
roffhash_find(const char *p, size_t s) |
| { roff_layout, NULL, NULL, NULL, ROFF_Sh, ROFF_LAYOUT, 0 }, /* Sh */ |
{ |
| { roff_layout, NULL, NULL, NULL, ROFF_Ss, ROFF_LAYOUT, 0 }, /* Ss */ |
int buc; |
| { roff_text, NULL, NULL, NULL, ROFF_Pp, ROFF_TEXT, 0 }, /* Pp */ |
struct roffmac *n; |
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* D1 */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Dl */ |
|
| { roff_layout, roffarg_Bd, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Bd */ |
|
| { roff_close, NULL, NULL, NULL, ROFF_Bd, ROFF_LAYOUT, 0 }, /* Ed */ |
|
| { roff_layout, roffarg_Bl, NULL, roffchild_Bl, 0, ROFF_LAYOUT, 0 }, /* Bl */ |
|
| { roff_close, NULL, roffparent_El, NULL, ROFF_Bl, ROFF_LAYOUT, 0 }, /* El */ |
|
| { roff_layout, NULL, roffparent_It, NULL, ROFF_It, ROFF_LAYOUT, ROFF_PARSED | ROFF_SHALLOW }, /* It */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ad */ /* FIXME */ |
|
| { roff_text, roffarg_An, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* An */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ar */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Cd */ /* XXX man.4 only */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Cm */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dv */ /* XXX needs arg */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Er */ /* XXX needs arg */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ev */ /* XXX needs arg */ |
|
| { roff_text, roffarg_Ex, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ex */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fa */ /* XXX needs arg */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Fd */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fl */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fn */ /* XXX needs arg */ /* FIXME */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ft */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ic */ /* XXX needs arg */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* In */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Li */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Nd */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Nm */ /* FIXME */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Op */ |
|
| { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ot */ /* XXX deprecated */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pa */ |
|
| { roff_text, roffarg_Rv, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Rv */ |
|
| { roff_text, roffarg_St, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* St */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Va */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Vt */ /* XXX needs arg */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xr */ /* XXX needs arg */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* %A */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %B */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %D */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %I */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %J */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %N */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %O */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %P */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %R */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* %T */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %V */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ac */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ao */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Aq */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* At */ /* XXX at most 2 args */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bc */ |
|
| { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Bf */ /* FIXME */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bo */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bq */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Bsx */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Bx */ |
|
| { NULL, NULL, NULL, NULL, 0, ROFF_SPECIAL, 0 }, /* Db */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dc */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Do */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dq */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ec */ |
|
| { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ef */ /* FIXME */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Em */ /* XXX needs arg */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Eo */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Fx */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ms */ |
|
| { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* No */ |
|
| { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ns */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Nx */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ox */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pc */ |
|
| { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Pf */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_LAYOUT, ROFF_PARSED | ROFF_CALLABLE }, /* Po */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pq */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qc */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ql */ |
|
| { roff_layout, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qo */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qq */ |
|
| { roff_close, NULL, roffparent_Re, NULL, ROFF_Rs, ROFF_LAYOUT, 0 }, /* Re */ |
|
| { roff_layout, NULL, NULL, roffchild_Rs, 0, ROFF_LAYOUT, 0 }, /* Rs */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sc */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* So */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sq */ |
|
| { NULL, NULL, NULL, NULL, 0, ROFF_SPECIAL, 0 }, /* Sm */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sx */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sy */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Tn */ |
|
| { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ux */ |
|
| { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xc */ |
|
| { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xo */ |
|
| { roff_layout, NULL, NULL, roffchild_Fo, 0, ROFF_LAYOUT, 0 }, /* Fo */ |
|
| { roff_close, NULL, roffparent_Fc, NULL, ROFF_Fo, ROFF_LAYOUT, 0 }, /* Fc */ |
|
| { roff_layout, NULL, NULL, roffchild_Oo, 0, ROFF_LAYOUT, 0 }, /* Oo */ |
|
| { roff_close, NULL, roffparent_Oc, NULL, ROFF_Oo, ROFF_LAYOUT, 0 }, /* Oc */ |
|
| { roff_layout, roffarg_Bk, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Bk */ |
|
| { roff_close, NULL, NULL, NULL, ROFF_Bk, ROFF_LAYOUT, 0 }, /* Ek */ |
|
| }; |
|
| |
|
| /* Table of all known token arguments. */ |
/* |
| static const int tokenargs[ROFF_ARGMAX] = { |
* libroff has an extremely simple hashtable, for the time |
| 0, 0, 0, 0, |
* being, which simply keys on the first character, which must |
| 0, ROFF_VALUE, ROFF_VALUE, 0, |
* be printable, then walks a chain. It works well enough until |
| 0, 0, 0, 0, |
* optimised. |
| 0, 0, 0, 0, |
*/ |
| 0, 0, ROFF_VALUE, 0, |
|
| 0, 0, 0, 0, |
|
| 0, 0, 0, 0, |
|
| 0, 0, 0, 0, |
|
| 0, 0, 0, 0, |
|
| 0, 0, 0, 0, |
|
| 0, 0, 0, 0, |
|
| 0, 0, 0, 0, |
|
| 0, 0, 0, 0, |
|
| 0, 0, 0, 0, |
|
| 0, 0, 0, 0, |
|
| }; |
|
| |
|
| const char *const toknamesp[ROFF_MAX] = { |
if (p[0] < ASCII_LO || p[0] > ASCII_HI) |
| "\\\"", "Dd", "Dt", "Os", |
return(ROFF_MAX); |
| "Sh", "Ss", "Pp", "D1", |
|
| "Dl", "Bd", "Ed", "Bl", |
|
| "El", "It", "Ad", "An", |
|
| "Ar", "Cd", "Cm", "Dv", |
|
| "Er", "Ev", "Ex", "Fa", |
|
| "Fd", "Fl", "Fn", "Ft", |
|
| "Ic", "In", "Li", "Nd", |
|
| "Nm", "Op", "Ot", "Pa", |
|
| "Rv", "St", "Va", "Vt", |
|
| /* LINTED */ |
|
| "Xr", "\%A", "\%B", "\%D", |
|
| /* LINTED */ |
|
| "\%I", "\%J", "\%N", "\%O", |
|
| /* LINTED */ |
|
| "\%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", |
|
| }; |
|
| |
|
| const char *const tokargnamesp[ROFF_ARGMAX] = { |
buc = ROFF_HASH(p); |
| "split", "nosplit", "ragged", |
|
| "unfilled", "literal", "file", |
|
| "offset", "bullet", "dash", |
|
| "hyphen", "item", "enum", |
|
| "tag", "diag", "hang", |
|
| "ohang", "inset", "column", |
|
| "width", "compact", "std", |
|
| "p1003.1-88", "p1003.1-90", "p1003.1-96", |
|
| "p1003.1-2001", "p1003.1-2004", "p1003.1", |
|
| "p1003.1b", "p1003.1b-93", "p1003.1c-95", |
|
| "p1003.1g-2000", "p1003.2-92", "p1387.2-95", |
|
| "p1003.2", "p1387.2", "isoC-90", |
|
| "isoC-amd1", "isoC-tcor1", "isoC-tcor2", |
|
| "isoC-99", "ansiC", "ansiC-89", |
|
| "ansiC-99", "ieee754", "iso8802-3", |
|
| "xpg3", "xpg4", "xpg4.2", |
|
| "xpg4.3", "xbd5", "xcu5", |
|
| "xsh5", "xns5", "xns5.2d2.0", |
|
| "xcurses4.2", "susv2", "susv3", |
|
| "svid4", "filled", "words", |
|
| }; |
|
| |
|
| const char *const *toknames = toknamesp; |
if (NULL == (n = hash[buc])) |
| const char *const *tokargnames = tokargnamesp; |
return(ROFF_MAX); |
| |
for ( ; n; n = n->next) |
| |
if (0 == strncmp(n->name, p, s) && '\0' == n->name[(int)s]) |
| |
return((enum rofft)(n - roffs)); |
| |
|
| |
return(ROFF_MAX); |
| |
} |
| |
|
| int |
|
| roff_free(struct rofftree *tree, int flush) |
/* |
| |
* Pop the current node off of the stack of roff instructions currently |
| |
* pending. |
| |
*/ |
| |
static void |
| |
roffnode_pop(struct roff *r) |
| { |
{ |
| int error, t; |
struct roffnode *p; |
| struct roffnode *n; |
|
| |
|
| error = 0; |
assert(r->last); |
| |
p = r->last; |
| |
|
| if ( ! flush) |
r->last = r->last->parent; |
| goto end; |
free(p->name); |
| |
free(p->end); |
| |
free(p); |
| |
} |
| |
|
| error = 1; |
|
| |
|
| if (ROFF_PRELUDE & tree->state) { |
/* |
| roff_warn(tree, NULL, "prelude never finished"); |
* Push a roff node onto the instruction stack. This must later be |
| goto end; |
* removed with roffnode_pop(). |
| } |
*/ |
| |
static void |
| |
roffnode_push(struct roff *r, enum rofft tok, const char *name, |
| |
int line, int col) |
| |
{ |
| |
struct roffnode *p; |
| |
|
| for (n = tree->last; n->parent; n = n->parent) { |
p = mandoc_calloc(1, sizeof(struct roffnode)); |
| if (0 != tokens[n->tok].ctx) |
p->tok = tok; |
| continue; |
if (name) |
| roff_warn(tree, NULL, "closing explicit scope `%s'", |
p->name = mandoc_strdup(name); |
| toknames[n->tok]); |
p->parent = r->last; |
| goto end; |
p->line = line; |
| } |
p->col = col; |
| |
p->rule = p->parent ? p->parent->rule : 0; |
| |
|
| while (tree->last) { |
r->last = p; |
| t = tree->last->tok; |
} |
| if ( ! (*tokens[t].cb)(t, tree, NULL, ROFF_EXIT)) |
|
| goto end; |
|
| } |
|
| |
|
| error = 0; |
|
| |
|
| end: |
static void |
| |
roff_free1(struct roff *r) |
| |
{ |
| |
struct tbl_node *tbl; |
| |
struct eqn_node *e; |
| |
int i; |
| |
|
| while (tree->last) |
while (NULL != (tbl = r->first_tbl)) { |
| roffnode_free(tree); |
r->first_tbl = tbl->next; |
| |
tbl_free(tbl); |
| |
} |
| |
|
| free(tree); |
r->first_tbl = r->last_tbl = r->tbl = NULL; |
| |
|
| return(error ? 0 : 1); |
while (NULL != (e = r->first_eqn)) { |
| } |
r->first_eqn = e->next; |
| |
eqn_free(e); |
| |
} |
| |
|
| |
r->first_eqn = r->last_eqn = r->eqn = NULL; |
| |
|
| struct rofftree * |
while (r->last) |
| roff_alloc(const struct roffcb *cb, void *args) |
roffnode_pop(r); |
| { |
|
| struct rofftree *tree; |
|
| |
|
| assert(args); |
roff_freestr(r->strtab); |
| assert(cb); |
roff_freestr(r->xmbtab); |
| |
|
| if (NULL == (tree = calloc(1, sizeof(struct rofftree)))) |
r->strtab = r->xmbtab = NULL; |
| err(1, "calloc"); |
|
| |
|
| tree->state = ROFF_PRELUDE; |
roff_freereg(r->regtab); |
| tree->arg = args; |
|
| |
|
| (void)memcpy(&tree->cb, cb, sizeof(struct roffcb)); |
r->regtab = NULL; |
| |
|
| return(tree); |
if (r->xtab) |
| |
for (i = 0; i < 128; i++) |
| |
free(r->xtab[i].p); |
| |
|
| |
free(r->xtab); |
| |
r->xtab = NULL; |
| } |
} |
| |
|
| |
void |
| int |
roff_reset(struct roff *r) |
| roff_engine(struct rofftree *tree, char *buf) |
|
| { |
{ |
| |
|
| tree->cur = buf; |
roff_free1(r); |
| assert(buf); |
r->control = 0; |
| |
} |
| |
|
| if (0 == *buf) { |
|
| roff_warn(tree, buf, "blank line"); |
|
| return(0); |
|
| } else if ('.' != *buf) |
|
| return(textparse(tree, buf)); |
|
| |
|
| return(roffparse(tree, buf)); |
void |
| |
roff_free(struct roff *r) |
| |
{ |
| |
|
| |
roff_free1(r); |
| |
free(r); |
| } |
} |
| |
|
| |
|
| static int |
struct roff * |
| textparse(const struct rofftree *tree, char *buf) |
roff_alloc(struct mparse *parse, int options) |
| { |
{ |
| |
struct roff *r; |
| |
|
| return((*tree->cb.roffdata)(tree->arg, 1, buf)); |
r = mandoc_calloc(1, sizeof(struct roff)); |
| |
r->parse = parse; |
| |
r->options = options; |
| |
r->rstackpos = -1; |
| |
|
| |
roffhash_init(); |
| |
|
| |
return(r); |
| } |
} |
| |
|
| |
/* |
| static int |
* In the current line, expand user-defined strings ("\*") |
| roffargs(const struct rofftree *tree, |
* and references to number registers ("\n"). |
| int tok, char *buf, char **argv) |
* Also check the syntax of other escape sequences. |
| |
*/ |
| |
static enum rofferr |
| |
roff_res(struct roff *r, char **bufp, size_t *szp, int ln, int pos) |
| { |
{ |
| int i; |
char ubuf[12]; /* buffer to print the number */ |
| char *p; |
const 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 bufp to */ |
| |
size_t nsz; /* size of the new buffer */ |
| |
size_t maxl; /* expected length of the escape name */ |
| |
size_t naml; /* actual length of the escape name */ |
| |
int expand_count; /* to avoid infinite loops */ |
| |
|
| assert(tok >= 0 && tok < ROFF_MAX); |
expand_count = 0; |
| assert('.' == *buf); |
|
| |
|
| p = buf; |
again: |
| |
cp = *bufp + pos; |
| |
while (NULL != (cp = strchr(cp, '\\'))) { |
| |
stesc = cp++; |
| |
|
| /* LINTED */ |
/* |
| for (i = 0; *buf && i < ROFF_MAXARG; i++) { |
* The second character must be an asterisk or an n. |
| if ('\"' == *buf) { |
* If it isn't, skip it anyway: It is escaped, |
| argv[i] = ++buf; |
* so it can't start another escape sequence. |
| while (*buf && '\"' != *buf) |
*/ |
| buf++; |
|
| if (0 == *buf) { |
if ('\0' == *cp) |
| roff_err(tree, argv[i], "unclosed " |
return(ROFF_CONT); |
| "quote in argument " |
|
| "list for `%s'", |
switch (*cp) { |
| toknames[tok]); |
case ('*'): |
| return(0); |
res = NULL; |
| } |
break; |
| } else { |
case ('n'): |
| argv[i] = buf++; |
res = ubuf; |
| while (*buf && ! isspace(*buf)) |
break; |
| buf++; |
default: |
| if (0 == *buf) |
if (ESCAPE_ERROR != mandoc_escape(&cp, NULL, NULL)) |
| continue; |
continue; |
| |
mandoc_msg |
| |
(MANDOCERR_BADESCAPE, r->parse, |
| |
ln, (int)(stesc - *bufp), NULL); |
| |
return(ROFF_CONT); |
| } |
} |
| *buf++ = 0; |
|
| while (*buf && isspace(*buf)) |
|
| buf++; |
|
| } |
|
| |
|
| assert(i > 0); |
|
| if (ROFF_MAXARG == i && *buf) { |
|
| roff_err(tree, p, "too many arguments for `%s'", toknames |
|
| [tok]); |
|
| return(0); |
|
| } |
|
| |
|
| argv[i] = NULL; |
cp++; |
| return(1); |
|
| } |
|
| |
|
| |
/* |
| |
* The third character decides the length |
| |
* of the name of the string or register. |
| |
* Save a pointer to the name. |
| |
*/ |
| |
|
| static int |
switch (*cp) { |
| roffscan(int tok, const int *tokv) |
case ('\0'): |
| { |
return(ROFF_CONT); |
| |
case ('('): |
| |
cp++; |
| |
maxl = 2; |
| |
break; |
| |
case ('['): |
| |
cp++; |
| |
maxl = 0; |
| |
break; |
| |
default: |
| |
maxl = 1; |
| |
break; |
| |
} |
| |
stnam = cp; |
| |
|
| if (NULL == tokv) |
/* Advance to the end of the name. */ |
| return(1); |
|
| |
|
| for ( ; ROFF_MAX != *tokv; tokv++) |
for (naml = 0; 0 == maxl || naml < maxl; naml++, cp++) { |
| if (tok == *tokv) |
if ('\0' == *cp) { |
| return(1); |
mandoc_msg |
| |
(MANDOCERR_BADESCAPE, |
| |
r->parse, ln, |
| |
(int)(stesc - *bufp), NULL); |
| |
return(ROFF_CONT); |
| |
} |
| |
if (0 == maxl && ']' == *cp) |
| |
break; |
| |
} |
| |
|
| return(0); |
/* |
| } |
* Retrieve the replacement string; if it is |
| |
* undefined, resume searching for escapes. |
| |
*/ |
| |
|
| |
if (NULL == res) |
| |
res = roff_getstrn(r, stnam, naml); |
| |
else |
| |
snprintf(ubuf, sizeof(ubuf), "%d", |
| |
roff_getregn(r, stnam, naml)); |
| |
|
| static int |
if (NULL == res) { |
| roffparse(struct rofftree *tree, char *buf) |
mandoc_msg |
| { |
(MANDOCERR_BADESCAPE, r->parse, |
| int tok, t; |
ln, (int)(stesc - *bufp), NULL); |
| struct roffnode *n; |
res = ""; |
| char *argv[ROFF_MAXARG]; |
} |
| char **argvp; |
|
| |
|
| if (0 != *buf && 0 != *(buf + 1) && 0 != *(buf + 2)) |
/* Replace the escape sequence by the string. */ |
| if (0 == strncmp(buf, ".\\\"", 3)) |
|
| return(1); |
|
| |
|
| if (ROFF_MAX == (tok = rofffindtok(buf + 1))) { |
pos = stesc - *bufp; |
| roff_err(tree, buf + 1, "bogus line macro"); |
|
| return(0); |
|
| } else if (NULL == tokens[tok].cb) { |
|
| roff_err(tree, buf + 1, "unsupported macro `%s'", |
|
| toknames[tok]); |
|
| return(0); |
|
| } |
|
| |
|
| assert(ROFF___ != tok); |
nsz = *szp + strlen(res) + 1; |
| if ( ! roffargs(tree, tok, buf, argv)) |
nbuf = mandoc_malloc(nsz); |
| return(0); |
|
| |
|
| argvp = (char **)argv; |
strlcpy(nbuf, *bufp, (size_t)(stesc - *bufp + 1)); |
| |
strlcat(nbuf, res, nsz); |
| |
strlcat(nbuf, cp + (maxl ? 0 : 1), nsz); |
| |
|
| /* |
free(*bufp); |
| * Prelude macros break some assumptions, so branch now. |
|
| */ |
|
| |
|
| if (ROFF_PRELUDE & tree->state) { |
|
| assert(NULL == tree->last); |
|
| return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER)); |
|
| } else |
|
| assert(tree->last); |
|
| |
|
| assert(ROFF_BODY & tree->state); |
*bufp = nbuf; |
| |
*szp = nsz; |
| |
|
| /* |
if (EXPAND_LIMIT >= ++expand_count) |
| * First check that our possible parents and parent's possible |
goto again; |
| * children are satisfied. |
|
| */ |
|
| |
|
| if ( ! roffscan(tree->last->tok, tokens[tok].parents)) { |
/* Just leave the string unexpanded. */ |
| roff_err(tree, *argvp, "`%s' has invalid parent `%s'", |
mandoc_msg(MANDOCERR_ROFFLOOP, r->parse, ln, pos, NULL); |
| toknames[tok], |
return(ROFF_IGN); |
| toknames[tree->last->tok]); |
|
| return(0); |
|
| } |
|
| |
|
| if ( ! roffscan(tok, tokens[tree->last->tok].children)) { |
|
| roff_err(tree, *argvp, "`%s' is invalid child of `%s'", |
|
| toknames[tok], |
|
| toknames[tree->last->tok]); |
|
| return(0); |
|
| } |
} |
| |
return(ROFF_CONT); |
| |
} |
| |
|
| /* |
/* |
| * Branch if we're not a layout token. |
* Process text streams: |
| */ |
* Convert all breakable hyphens into ASCII_HYPH. |
| |
* Decrement and spring input line trap. |
| |
*/ |
| |
static enum rofferr |
| |
roff_parsetext(char **bufp, size_t *szp, int pos, int *offs) |
| |
{ |
| |
size_t sz; |
| |
const char *start; |
| |
char *p; |
| |
int isz; |
| |
enum mandoc_esc esc; |
| |
|
| if (ROFF_LAYOUT != tokens[tok].type) |
start = p = *bufp + pos; |
| return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER)); |
|
| |
|
| /* |
while ('\0' != *p) { |
| * Check our scope rules. |
sz = strcspn(p, "-\\"); |
| */ |
p += sz; |
| |
|
| if (0 == tokens[tok].ctx) |
if ('\0' == *p) |
| return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER)); |
break; |
| |
|
| /* |
if ('\\' == *p) { |
| * First consider implicit-end tags, like as follows: |
/* Skip over escapes. */ |
| * .Sh SECTION 1 |
p++; |
| * .Sh SECTION 2 |
esc = mandoc_escape((const char **)&p, NULL, NULL); |
| * In this, we want to close the scope of the NAME section. If |
if (ESCAPE_ERROR == esc) |
| * there's an intermediary implicit-end tag, such as |
break; |
| * .Sh SECTION 1 |
continue; |
| * .Ss Subsection 1 |
} else if (p == start) { |
| * .Sh SECTION 2 |
p++; |
| * then it must be closed as well. |
continue; |
| */ |
} |
| |
|
| if (tok == tokens[tok].ctx) { |
if (isalpha((unsigned char)p[-1]) && |
| /* |
isalpha((unsigned char)p[1])) |
| * First search up to the point where we must close. |
*p = ASCII_HYPH; |
| * If one doesn't exist, then we can open a new scope. |
p++; |
| */ |
} |
| |
|
| for (n = tree->last; n; n = n->parent) { |
/* Spring the input line trap. */ |
| assert(0 == tokens[n->tok].ctx || |
if (1 == roffit_lines) { |
| n->tok == tokens[n->tok].ctx); |
isz = asprintf(&p, "%s\n.%s", *bufp, roffit_macro); |
| if (n->tok == tok) |
if (-1 == isz) { |
| break; |
perror(NULL); |
| if (ROFF_SHALLOW & tokens[tok].flags) { |
exit((int)MANDOCLEVEL_SYSERR); |
| n = NULL; |
|
| break; |
|
| } |
|
| } |
} |
| |
free(*bufp); |
| |
*bufp = p; |
| |
*szp = isz + 1; |
| |
*offs = 0; |
| |
free(roffit_macro); |
| |
roffit_lines = 0; |
| |
return(ROFF_REPARSE); |
| |
} else if (1 < roffit_lines) |
| |
--roffit_lines; |
| |
return(ROFF_CONT); |
| |
} |
| |
|
| /* |
enum rofferr |
| * Create a new scope, as no previous one exists to |
roff_parseln(struct roff *r, int ln, char **bufp, |
| * close out. |
size_t *szp, int pos, int *offs) |
| */ |
{ |
| |
enum rofft t; |
| |
enum rofferr e; |
| |
int ppos, ctl; |
| |
|
| if (NULL == n) |
/* |
| return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER)); |
* Run the reserved-word filter only if we have some reserved |
| |
* words to fill in. |
| |
*/ |
| |
|
| /* |
e = roff_res(r, bufp, szp, ln, pos); |
| * Close out all intermediary scoped blocks, then hang |
if (ROFF_IGN == e) |
| * the current scope from our predecessor's parent. |
return(e); |
| */ |
assert(ROFF_CONT == e); |
| |
|
| do { |
ppos = pos; |
| t = tree->last->tok; |
ctl = roff_getcontrol(r, *bufp, &pos); |
| if ( ! (*tokens[t].cb)(t, tree, NULL, ROFF_EXIT)) |
|
| return(0); |
|
| } while (t != tok); |
|
| |
|
| return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER)); |
/* |
| |
* First, if a scope is open and we're not a macro, pass the |
| |
* text through the macro's filter. If a scope isn't open and |
| |
* we're not a macro, just let it through. |
| |
* Finally, if there's an equation scope open, divert it into it |
| |
* no matter our state. |
| |
*/ |
| |
|
| |
if (r->last && ! ctl) { |
| |
t = r->last->tok; |
| |
assert(roffs[t].text); |
| |
e = (*roffs[t].text) |
| |
(r, t, bufp, szp, ln, pos, pos, offs); |
| |
assert(ROFF_IGN == e || ROFF_CONT == e); |
| |
if (ROFF_CONT != e) |
| |
return(e); |
| } |
} |
| |
if (r->eqn) |
| |
return(eqn_read(&r->eqn, ln, *bufp, ppos, offs)); |
| |
if ( ! ctl) { |
| |
if (r->tbl) |
| |
return(tbl_read(r->tbl, ln, *bufp, pos)); |
| |
return(roff_parsetext(bufp, szp, pos, offs)); |
| |
} |
| |
|
| /* |
/* |
| * Now consider explicit-end tags, where we want to close back |
* If a scope is open, go to the child handler for that macro, |
| * to a specific tag. Example: |
* as it may want to preprocess before doing anything with it. |
| * .Bl |
* Don't do so if an equation is open. |
| * .It Item. |
|
| * .El |
|
| * In this, the `El' tag closes out the scope of `Bl'. |
|
| */ |
*/ |
| |
|
| assert(tree->last); |
if (r->last) { |
| assert(tok != tokens[tok].ctx && 0 != tokens[tok].ctx); |
t = r->last->tok; |
| |
assert(roffs[t].sub); |
| |
return((*roffs[t].sub) |
| |
(r, t, bufp, szp, |
| |
ln, ppos, pos, offs)); |
| |
} |
| |
|
| /* LINTED */ |
/* |
| do { |
* Lastly, as we've no scope open, try to look up and execute |
| t = tree->last->tok; |
* the new macro. If no macro is found, simply return and let |
| if ( ! (*tokens[t].cb)(t, tree, NULL, ROFF_EXIT)) |
* the compilers handle it. |
| return(0); |
*/ |
| } while (t != tokens[tok].ctx); |
|
| |
|
| assert(tree->last); |
if (ROFF_MAX == (t = roff_parse(r, *bufp, &pos))) |
| return(1); |
return(ROFF_CONT); |
| |
|
| |
assert(roffs[t].proc); |
| |
return((*roffs[t].proc) |
| |
(r, t, bufp, szp, |
| |
ln, ppos, pos, offs)); |
| } |
} |
| |
|
| |
|
| static int |
void |
| rofffindarg(const char *name) |
roff_endparse(struct roff *r) |
| { |
{ |
| size_t i; |
|
| |
|
| /* FIXME: use a table, this is slow but ok for now. */ |
if (r->last) |
| |
mandoc_msg(MANDOCERR_SCOPEEXIT, r->parse, |
| |
r->last->line, r->last->col, NULL); |
| |
|
| /* LINTED */ |
if (r->eqn) { |
| for (i = 0; i < ROFF_ARGMAX; i++) |
mandoc_msg(MANDOCERR_SCOPEEXIT, r->parse, |
| /* LINTED */ |
r->eqn->eqn.ln, r->eqn->eqn.pos, NULL); |
| if (0 == strcmp(name, tokargnames[i])) |
eqn_end(&r->eqn); |
| return((int)i); |
} |
| |
|
| return(ROFF_ARGMAX); |
if (r->tbl) { |
| |
mandoc_msg(MANDOCERR_SCOPEEXIT, r->parse, |
| |
r->tbl->line, r->tbl->pos, NULL); |
| |
tbl_end(&r->tbl); |
| |
} |
| } |
} |
| |
|
| |
/* |
| static int |
* Parse a roff node's type from the input buffer. This must be in the |
| rofffindtok(const char *buf) |
* form of ".foo xxx" in the usual way. |
| |
*/ |
| |
static enum rofft |
| |
roff_parse(struct roff *r, const char *buf, int *pos) |
| { |
{ |
| char token[4]; |
const char *mac; |
| int i; |
size_t maclen; |
| |
enum rofft t; |
| |
|
| for (i = 0; *buf && ! isspace(*buf) && i < 3; i++, buf++) |
if ('\0' == buf[*pos] || '"' == buf[*pos] || |
| token[i] = *buf; |
'\t' == buf[*pos] || ' ' == buf[*pos]) |
| |
|
| if (i == 3) |
|
| return(ROFF_MAX); |
return(ROFF_MAX); |
| |
|
| token[i] = 0; |
/* We stop the macro parse at an escape, tab, space, or nil. */ |
| |
|
| /* FIXME: use a table, this is slow but ok for now. */ |
mac = buf + *pos; |
| |
maclen = strcspn(mac, " \\\t\0"); |
| |
|
| /* LINTED */ |
t = (r->current_string = roff_getstrn(r, mac, maclen)) |
| for (i = 0; i < ROFF_MAX; i++) |
? ROFF_USERDEF : roffhash_find(mac, maclen); |
| /* LINTED */ |
|
| if (0 == strcmp(toknames[i], token)) |
|
| return((int)i); |
|
| |
|
| return(ROFF_MAX); |
*pos += (int)maclen; |
| } |
|
| |
|
| |
while (buf[*pos] && ' ' == buf[*pos]) |
| |
(*pos)++; |
| |
|
| static int |
return(t); |
| roffispunct(const char *p) |
} |
| |
|
| |
/* ARGSUSED */ |
| |
static enum rofferr |
| |
roff_cblock(ROFF_ARGS) |
| { |
{ |
| |
|
| if (0 == *p) |
/* |
| return(0); |
* A block-close `..' should only be invoked as a child of an |
| if (0 != *(p + 1)) |
* ignore macro, otherwise raise a warning and just ignore it. |
| return(0); |
*/ |
| |
|
| switch (*p) { |
if (NULL == r->last) { |
| case('{'): |
mandoc_msg(MANDOCERR_NOSCOPE, r->parse, ln, ppos, NULL); |
| |
return(ROFF_IGN); |
| |
} |
| |
|
| |
switch (r->last->tok) { |
| |
case (ROFF_am): |
| /* FALLTHROUGH */ |
/* FALLTHROUGH */ |
| case('.'): |
case (ROFF_ami): |
| /* FALLTHROUGH */ |
/* FALLTHROUGH */ |
| case(','): |
case (ROFF_am1): |
| /* FALLTHROUGH */ |
/* FALLTHROUGH */ |
| case(';'): |
case (ROFF_de): |
| |
/* ROFF_de1 is remapped to ROFF_de in roff_block(). */ |
| /* FALLTHROUGH */ |
/* FALLTHROUGH */ |
| case(':'): |
case (ROFF_dei): |
| /* FALLTHROUGH */ |
/* FALLTHROUGH */ |
| case('?'): |
case (ROFF_ig): |
| /* FALLTHROUGH */ |
|
| case('!'): |
|
| /* FALLTHROUGH */ |
|
| case('('): |
|
| /* FALLTHROUGH */ |
|
| case(')'): |
|
| /* FALLTHROUGH */ |
|
| case('['): |
|
| /* FALLTHROUGH */ |
|
| case(']'): |
|
| /* FALLTHROUGH */ |
|
| case('}'): |
|
| return(1); |
|
| default: |
|
| break; |
break; |
| |
default: |
| |
mandoc_msg(MANDOCERR_NOSCOPE, r->parse, ln, ppos, NULL); |
| |
return(ROFF_IGN); |
| } |
} |
| |
|
| return(0); |
if ((*bufp)[pos]) |
| |
mandoc_msg(MANDOCERR_ARGSLOST, r->parse, ln, pos, NULL); |
| |
|
| |
roffnode_pop(r); |
| |
roffnode_cleanscope(r); |
| |
return(ROFF_IGN); |
| |
|
| } |
} |
| |
|
| |
|
| static int |
static void |
| rofffindcallable(const char *name) |
roffnode_cleanscope(struct roff *r) |
| { |
{ |
| int c; |
|
| |
|
| if (ROFF_MAX == (c = rofffindtok(name))) |
while (r->last) { |
| return(ROFF_MAX); |
if (--r->last->endspan != 0) |
| assert(c >= 0 && c < ROFF_MAX); |
break; |
| return(ROFF_CALLABLE & tokens[c].flags ? c : ROFF_MAX); |
roffnode_pop(r); |
| |
} |
| } |
} |
| |
|
| |
|
| static struct roffnode * |
static void |
| roffnode_new(int tokid, struct rofftree *tree) |
roff_ccond(struct roff *r, int ln, int ppos) |
| { |
{ |
| struct roffnode *p; |
|
| |
|
| if (NULL == (p = malloc(sizeof(struct roffnode)))) |
|
| err(1, "malloc"); |
|
| |
|
| p->tok = tokid; |
if (NULL == r->last) { |
| p->parent = tree->last; |
mandoc_msg(MANDOCERR_NOSCOPE, r->parse, ln, ppos, NULL); |
| tree->last = p; |
return; |
| |
} |
| |
|
| return(p); |
switch (r->last->tok) { |
| |
case (ROFF_el): |
| |
/* FALLTHROUGH */ |
| |
case (ROFF_ie): |
| |
/* FALLTHROUGH */ |
| |
case (ROFF_if): |
| |
break; |
| |
default: |
| |
mandoc_msg(MANDOCERR_NOSCOPE, r->parse, ln, ppos, NULL); |
| |
return; |
| |
} |
| |
|
| |
if (r->last->endspan > -1) { |
| |
mandoc_msg(MANDOCERR_NOSCOPE, r->parse, ln, ppos, NULL); |
| |
return; |
| |
} |
| |
|
| |
roffnode_pop(r); |
| |
roffnode_cleanscope(r); |
| |
return; |
| } |
} |
| |
|
| |
|
| static int |
/* ARGSUSED */ |
| roffargok(int tokid, int argid) |
static enum rofferr |
| |
roff_block(ROFF_ARGS) |
| { |
{ |
| const int *c; |
int sv; |
| |
size_t sz; |
| |
char *name; |
| |
|
| if (NULL == (c = tokens[tokid].args)) |
name = NULL; |
| return(0); |
|
| |
|
| for ( ; ROFF_ARGMAX != *c; c++) |
if (ROFF_ig != tok) { |
| if (argid == *c) |
if ('\0' == (*bufp)[pos]) { |
| return(1); |
mandoc_msg(MANDOCERR_NOARGS, r->parse, ln, ppos, NULL); |
| |
return(ROFF_IGN); |
| |
} |
| |
|
| return(0); |
/* |
| } |
* Re-write `de1', since we don't really care about |
| |
* groff's strange compatibility mode, into `de'. |
| |
*/ |
| |
|
| |
if (ROFF_de1 == tok) |
| |
tok = ROFF_de; |
| |
if (ROFF_de == tok) |
| |
name = *bufp + pos; |
| |
else |
| |
mandoc_msg(MANDOCERR_REQUEST, r->parse, ln, ppos, |
| |
roffs[tok].name); |
| |
|
| static void |
while ((*bufp)[pos] && ! isspace((unsigned char)(*bufp)[pos])) |
| roffnode_free(struct rofftree *tree) |
pos++; |
| { |
|
| struct roffnode *p; |
|
| |
|
| assert(tree->last); |
while (isspace((unsigned char)(*bufp)[pos])) |
| |
(*bufp)[pos++] = '\0'; |
| |
} |
| |
|
| p = tree->last; |
roffnode_push(r, tok, name, ln, ppos); |
| tree->last = tree->last->parent; |
|
| free(p); |
|
| } |
|
| |
|
| |
/* |
| |
* 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. |
| |
*/ |
| |
|
| static int |
if (ROFF_de == tok) |
| roffnextopt(const struct rofftree *tree, int tok, |
roff_setstr(r, name, "", 0); |
| char ***in, char **val) |
|
| { |
|
| char *arg, **argv; |
|
| int v; |
|
| |
|
| *val = NULL; |
if ('\0' == (*bufp)[pos]) |
| argv = *in; |
return(ROFF_IGN); |
| assert(argv); |
|
| |
|
| if (NULL == (arg = *argv)) |
/* If present, process the custom end-of-line marker. */ |
| return(-1); |
|
| if ('-' != *arg) |
|
| return(-1); |
|
| |
|
| if (ROFF_ARGMAX == (v = rofffindarg(arg + 1))) { |
sv = pos; |
| roff_warn(tree, arg, "argument-like parameter `%s' to " |
while ((*bufp)[pos] && ! isspace((unsigned char)(*bufp)[pos])) |
| "`%s'", &arg[1], toknames[tok]); |
pos++; |
| return(-1); |
|
| } |
|
| |
|
| if ( ! roffargok(tok, v)) { |
|
| roff_warn(tree, arg, "invalid argument parameter `%s' to " |
|
| "`%s'", tokargnames[v], toknames[tok]); |
|
| return(-1); |
|
| } |
|
| |
|
| if ( ! (ROFF_VALUE & tokenargs[v])) |
|
| return(v); |
|
| |
|
| *in = ++argv; |
/* |
| |
* Note: groff does NOT like escape characters in the input. |
| |
* Instead of detecting this, we're just going to let it fly and |
| |
* to hell with it. |
| |
*/ |
| |
|
| if (NULL == *argv) { |
assert(pos > sv); |
| roff_err(tree, arg, "empty value of `%s' for `%s'", |
sz = (size_t)(pos - sv); |
| tokargnames[v], toknames[tok]); |
|
| return(ROFF_ARGMAX); |
|
| } |
|
| |
|
| return(v); |
if (1 == sz && '.' == (*bufp)[sv]) |
| |
return(ROFF_IGN); |
| |
|
| |
r->last->end = mandoc_malloc(sz + 1); |
| |
|
| |
memcpy(r->last->end, *bufp + sv, sz); |
| |
r->last->end[(int)sz] = '\0'; |
| |
|
| |
if ((*bufp)[pos]) |
| |
mandoc_msg(MANDOCERR_ARGSLOST, r->parse, ln, pos, NULL); |
| |
|
| |
return(ROFF_IGN); |
| } |
} |
| |
|
| |
|
| /* ARGSUSED */ |
/* ARGSUSED */ |
| static int |
static enum rofferr |
| roff_Dd(ROFFCALL_ARGS) |
roff_block_sub(ROFF_ARGS) |
| { |
{ |
| |
enum rofft t; |
| |
int i, j; |
| |
|
| if (ROFF_BODY & tree->state) { |
/* |
| assert( ! (ROFF_PRELUDE & tree->state)); |
* First check whether a custom macro exists at this level. If |
| assert(ROFF_PRELUDE_Dd & tree->state); |
* it does, then check against it. This is some of groff's |
| return(roff_text(tok, tree, argv, type)); |
* 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 ((*bufp)[i] != r->last->end[j]) |
| |
break; |
| |
|
| |
if ('\0' == r->last->end[j] && |
| |
('\0' == (*bufp)[i] || |
| |
' ' == (*bufp)[i] || |
| |
'\t' == (*bufp)[i])) { |
| |
roffnode_pop(r); |
| |
roffnode_cleanscope(r); |
| |
|
| |
while (' ' == (*bufp)[i] || '\t' == (*bufp)[i]) |
| |
i++; |
| |
|
| |
pos = i; |
| |
if (ROFF_MAX != roff_parse(r, *bufp, &pos)) |
| |
return(ROFF_RERUN); |
| |
return(ROFF_IGN); |
| |
} |
| } |
} |
| |
|
| assert(ROFF_PRELUDE & tree->state); |
/* |
| assert( ! (ROFF_BODY & tree->state)); |
* If we have no custom end-query or lookup failed, then try |
| |
* pulling it out of the hashtable. |
| |
*/ |
| |
|
| if (ROFF_PRELUDE_Dd & tree->state) { |
t = roff_parse(r, *bufp, &pos); |
| roff_err(tree, *argv, "repeated `Dd' in prelude"); |
|
| return(0); |
/* |
| } else if (ROFF_PRELUDE_Dt & tree->state) { |
* Macros other than block-end are only significant |
| roff_err(tree, *argv, "out-of-order `Dd' in prelude"); |
* in `de' blocks; elsewhere, simply throw them away. |
| return(0); |
*/ |
| |
if (ROFF_cblock != t) { |
| |
if (ROFF_de == tok) |
| |
roff_setstr(r, r->last->name, *bufp + ppos, 2); |
| |
return(ROFF_IGN); |
| } |
} |
| |
|
| /* TODO: parse date. */ |
assert(roffs[t].proc); |
| |
return((*roffs[t].proc)(r, t, bufp, szp, |
| |
ln, ppos, pos, offs)); |
| |
} |
| |
|
| assert(NULL == tree->last); |
|
| tree->state |= ROFF_PRELUDE_Dd; |
|
| |
|
| return(1); |
/* ARGSUSED */ |
| |
static enum rofferr |
| |
roff_block_text(ROFF_ARGS) |
| |
{ |
| |
|
| |
if (ROFF_de == tok) |
| |
roff_setstr(r, r->last->name, *bufp + pos, 2); |
| |
|
| |
return(ROFF_IGN); |
| } |
} |
| |
|
| |
|
| /* ARGSUSED */ |
/* ARGSUSED */ |
| static int |
static enum rofferr |
| roff_Dt(ROFFCALL_ARGS) |
roff_cond_sub(ROFF_ARGS) |
| { |
{ |
| |
enum rofft t; |
| |
char *ep; |
| |
int rr; |
| |
|
| if (ROFF_BODY & tree->state) { |
rr = r->last->rule; |
| assert( ! (ROFF_PRELUDE & tree->state)); |
roffnode_cleanscope(r); |
| assert(ROFF_PRELUDE_Dt & tree->state); |
t = roff_parse(r, *bufp, &pos); |
| return(roff_text(tok, tree, argv, type)); |
|
| } |
|
| |
|
| assert(ROFF_PRELUDE & tree->state); |
/* |
| assert( ! (ROFF_BODY & tree->state)); |
* Fully handle known macros when they are structurally |
| |
* required or when the conditional evaluated to true. |
| |
*/ |
| |
|
| if ( ! (ROFF_PRELUDE_Dd & tree->state)) { |
if ((ROFF_MAX != t) && |
| roff_err(tree, *argv, "out-of-order `Dt' in prelude"); |
(rr || ROFFMAC_STRUCT & roffs[t].flags)) { |
| return(0); |
assert(roffs[t].proc); |
| } else if (ROFF_PRELUDE_Dt & tree->state) { |
return((*roffs[t].proc)(r, t, bufp, szp, |
| roff_err(tree, *argv, "repeated `Dt' in prelude"); |
ln, ppos, pos, offs)); |
| return(0); |
|
| } |
} |
| |
|
| /* TODO: parse date. */ |
/* |
| |
* If `\}' occurs on a macro line without a preceding macro, |
| |
* drop the line completely. |
| |
*/ |
| |
|
| assert(NULL == tree->last); |
ep = *bufp + pos; |
| tree->state |= ROFF_PRELUDE_Dt; |
if ('\\' == ep[0] && '}' == ep[1]) |
| |
rr = 0; |
| |
|
| return(1); |
/* Always check for the closing delimiter `\}'. */ |
| |
|
| |
while (NULL != (ep = strchr(ep, '\\'))) { |
| |
if ('}' == *(++ep)) { |
| |
*ep = '&'; |
| |
roff_ccond(r, ln, ep - *bufp - 1); |
| |
} |
| |
++ep; |
| |
} |
| |
return(rr ? ROFF_CONT : ROFF_IGN); |
| } |
} |
| |
|
| |
|
| /* ARGSUSED */ |
/* ARGSUSED */ |
| static int |
static enum rofferr |
| roff_Os(ROFFCALL_ARGS) |
roff_cond_text(ROFF_ARGS) |
| { |
{ |
| |
char *ep; |
| |
int rr; |
| |
|
| if (ROFF_EXIT == type) { |
rr = r->last->rule; |
| roffnode_free(tree); |
roffnode_cleanscope(r); |
| return((*tree->cb.rofftail)(tree->arg)); |
|
| } else if (ROFF_BODY & tree->state) { |
|
| assert( ! (ROFF_PRELUDE & tree->state)); |
|
| assert(ROFF_PRELUDE_Os & tree->state); |
|
| return(roff_text(tok, tree, argv, type)); |
|
| } |
|
| |
|
| assert(ROFF_PRELUDE & tree->state); |
ep = *bufp + pos; |
| if ( ! (ROFF_PRELUDE_Dt & tree->state) || |
while (NULL != (ep = strchr(ep, '\\'))) { |
| ! (ROFF_PRELUDE_Dd & tree->state)) { |
if ('}' == *(++ep)) { |
| roff_err(tree, *argv, "out-of-order `Os' in prelude"); |
*ep = '&'; |
| return(0); |
roff_ccond(r, ln, ep - *bufp - 1); |
| |
} |
| |
++ep; |
| } |
} |
| |
return(rr ? ROFF_CONT : ROFF_IGN); |
| |
} |
| |
|
| /* TODO: extract OS. */ |
static int |
| |
roff_getnum(const char *v, int *pos, int *res) |
| |
{ |
| |
int p, n; |
| |
|
| tree->state |= ROFF_PRELUDE_Os; |
p = *pos; |
| tree->state &= ~ROFF_PRELUDE; |
n = v[p] == '-'; |
| tree->state |= ROFF_BODY; |
if (n) |
| |
p++; |
| |
|
| assert(NULL == tree->last); |
for (*res = 0; isdigit((unsigned char)v[p]); p++) |
| |
*res += 10 * *res + v[p] - '0'; |
| |
if (p == *pos + n) |
| |
return 0; |
| |
|
| if (NULL == roffnode_new(tok, tree)) |
if (n) |
| return(0); |
*res = -*res; |
| |
|
| return((*tree->cb.roffhead)(tree->arg)); |
*pos = p; |
| |
return 1; |
| } |
} |
| |
|
| |
|
| /* ARGSUSED */ |
|
| static int |
static int |
| roff_layout(ROFFCALL_ARGS) |
roff_getop(const char *v, int *pos, char *res) |
| { |
{ |
| int i, c, argcp[ROFF_MAXARG]; |
int e; |
| char *v, *argvp[ROFF_MAXARG]; |
|
| |
|
| if (ROFF_PRELUDE & tree->state) { |
*res = v[*pos]; |
| roff_err(tree, *argv, "`%s' disallowed in prelude", |
e = v[*pos + 1] == '='; |
| toknames[tok]); |
|
| |
switch (*res) { |
| |
case '=': |
| |
break; |
| |
case '>': |
| |
if (e) |
| |
*res = 'g'; |
| |
break; |
| |
case '<': |
| |
if (e) |
| |
*res = 'l'; |
| |
break; |
| |
default: |
| return(0); |
return(0); |
| } |
} |
| |
|
| if (ROFF_EXIT == type) { |
*pos += 1 + e; |
| roffnode_free(tree); |
|
| return((*tree->cb.roffblkout)(tree->arg, tok)); |
|
| } |
|
| |
|
| i = 0; |
return(*res); |
| argv++; |
} |
| |
|
| while (-1 != (c = roffnextopt(tree, tok, &argv, &v))) { |
/* |
| if (ROFF_ARGMAX == c) |
* Evaluate a string comparison condition. |
| return(0); |
* 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; |
| |
|
| argcp[i] = c; |
match = 0; |
| argvp[i] = v; |
s1 = v + *pos; /* initial delimiter */ |
| i++; |
s2 = s1 + 1; /* for scanning the first string */ |
| argv++; |
s3 = strchr(s2, *s1); /* for scanning the second string */ |
| |
|
| |
if (NULL == s3) /* found no middle delimiter */ |
| |
goto out; |
| |
|
| |
while ('\0' != *++s3) { |
| |
if (*s2 != *s3) { /* mismatch */ |
| |
s3 = strchr(s3, *s1); |
| |
break; |
| |
} |
| |
if (*s3 == *s1) { /* found the final delimiter */ |
| |
match = 1; |
| |
break; |
| |
} |
| |
s2++; |
| } |
} |
| |
|
| argcp[i] = ROFF_ARGMAX; |
out: |
| argvp[i] = NULL; |
if (NULL == s3) |
| |
s3 = strchr(s2, '\0'); |
| |
else |
| |
s3++; |
| |
*pos = s3 - v; |
| |
return(match); |
| |
} |
| |
|
| if (NULL == roffnode_new(tok, tree)) |
static int |
| |
roff_evalcond(const char *v, int *pos) |
| |
{ |
| |
int wanttrue, lh, rh; |
| |
char op; |
| |
|
| |
if ('!' == v[*pos]) { |
| |
wanttrue = 0; |
| |
(*pos)++; |
| |
} else |
| |
wanttrue = 1; |
| |
|
| |
switch (v[*pos]) { |
| |
case ('n'): |
| |
/* FALLTHROUGH */ |
| |
case ('o'): |
| |
(*pos)++; |
| |
return(wanttrue); |
| |
case ('c'): |
| |
/* FALLTHROUGH */ |
| |
case ('d'): |
| |
/* FALLTHROUGH */ |
| |
case ('e'): |
| |
/* FALLTHROUGH */ |
| |
case ('r'): |
| |
/* FALLTHROUGH */ |
| |
case ('t'): |
| |
(*pos)++; |
| |
return(!wanttrue); |
| |
default: |
| |
break; |
| |
} |
| |
|
| |
if (!roff_getnum(v, pos, &lh)) |
| |
return(roff_evalstrcond(v, pos) == wanttrue); |
| |
if (!roff_getop(v, pos, &op)) |
| |
return((lh > 0) == wanttrue); |
| |
if (!roff_getnum(v, pos, &rh)) |
| return(0); |
return(0); |
| |
|
| if ( ! (*tree->cb.roffblkin)(tree->arg, tok, argcp, argvp)) |
switch (op) { |
| |
case 'g': |
| |
return((lh >= rh) == wanttrue); |
| |
case 'l': |
| |
return((lh <= rh) == wanttrue); |
| |
case '=': |
| |
return((lh == rh) == wanttrue); |
| |
case '>': |
| |
return((lh > rh) == wanttrue); |
| |
case '<': |
| |
return((lh < rh) == wanttrue); |
| |
default: |
| return(0); |
return(0); |
| |
} |
| |
} |
| |
|
| if (NULL == *argv) |
/* ARGSUSED */ |
| return(1); |
static enum rofferr |
| |
roff_line_ignore(ROFF_ARGS) |
| |
{ |
| |
|
| if ( ! (*tree->cb.roffin)(tree->arg, tok, argcp, argvp)) |
return(ROFF_IGN); |
| return(0); |
} |
| |
|
| if ( ! (ROFF_PARSED & tokens[tok].flags)) { |
/* ARGSUSED */ |
| i = 0; |
static enum rofferr |
| while (*argv) { |
roff_cond(ROFF_ARGS) |
| if ( ! (*tree->cb.roffdata)(tree->arg, i, *argv++)) |
{ |
| return(0); |
|
| i = 1; |
roffnode_push(r, tok, NULL, ln, ppos); |
| |
|
| |
/* |
| |
* An `.el' has no conditional body: it will consume the value |
| |
* of the current rstack entry set in prior `ie' calls or |
| |
* defaults to DENY. |
| |
* |
| |
* If we're not an `el', however, then evaluate the conditional. |
| |
*/ |
| |
|
| |
r->last->rule = ROFF_el == tok ? |
| |
(r->rstackpos < 0 ? 0 : r->rstack[r->rstackpos--]) : |
| |
roff_evalcond(*bufp, &pos); |
| |
|
| |
/* |
| |
* An if-else will put the NEGATION of the current evaluated |
| |
* conditional into the stack of rules. |
| |
*/ |
| |
|
| |
if (ROFF_ie == tok) { |
| |
if (r->rstackpos == RSTACK_MAX - 1) { |
| |
mandoc_msg(MANDOCERR_MEM, |
| |
r->parse, ln, ppos, NULL); |
| |
return(ROFF_ERR); |
| } |
} |
| return((*tree->cb.roffout)(tree->arg, tok)); |
r->rstack[++r->rstackpos] = !r->last->rule; |
| } |
} |
| |
|
| i = 0; |
/* If the parent has false as its rule, then so do we. */ |
| while (*argv) { |
|
| if (ROFF_MAX == (c = rofffindcallable(*argv))) { |
|
| assert(tree->arg); |
|
| if ( ! (*tree->cb.roffdata) |
|
| (tree->arg, i, *argv++)) |
|
| return(0); |
|
| i = 1; |
|
| continue; |
|
| } |
|
| |
|
| if (NULL == tokens[c].cb) { |
if (r->last->parent && !r->last->parent->rule) |
| roff_err(tree, *argv, "unsupported macro `%s'", |
r->last->rule = 0; |
| toknames[c]); |
|
| return(0); |
|
| } |
|
| |
|
| if ( ! (*tokens[c].cb)(c, tree, argv, ROFF_ENTER)) |
/* |
| return(0); |
* Determine scope. |
| |
* If there is nothing on the line after the conditional, |
| |
* not even whitespace, use next-line scope. |
| |
*/ |
| |
|
| break; |
if ('\0' == (*bufp)[pos]) { |
| |
r->last->endspan = 2; |
| |
goto out; |
| } |
} |
| |
|
| /* |
while (' ' == (*bufp)[pos]) |
| * If we're the first parser (*argv == tree->cur) then purge out |
pos++; |
| * any additional punctuation, should there be any remaining at |
|
| * the end of line. |
/* An opening brace requests multiline scope. */ |
| |
|
| |
if ('\\' == (*bufp)[pos] && '{' == (*bufp)[pos + 1]) { |
| |
r->last->endspan = -1; |
| |
pos += 2; |
| |
goto out; |
| |
} |
| |
|
| |
/* |
| |
* Anything else following the conditional causes |
| |
* single-line scope. Warn if the scope contains |
| |
* nothing but trailing whitespace. |
| */ |
*/ |
| |
|
| if ( ! (ROFF_PARSED & tokens[tok].flags && *argv)) |
if ('\0' == (*bufp)[pos]) |
| return((*tree->cb.roffout)(tree->arg, tok)); |
mandoc_msg(MANDOCERR_NOARGS, r->parse, ln, ppos, NULL); |
| |
|
| i = 0; |
r->last->endspan = 1; |
| while (argv[i]) |
|
| i++; |
|
| |
|
| assert(i > 0); |
out: |
| if ( ! roffispunct(argv[--i])) |
*offs = pos; |
| return((*tree->cb.roffout)(tree->arg, tok)); |
return(ROFF_RERUN); |
| |
} |
| |
|
| while (i >= 0 && roffispunct(argv[i])) |
|
| i--; |
|
| |
|
| assert(0 != i); |
/* ARGSUSED */ |
| i++; |
static enum rofferr |
| |
roff_ds(ROFF_ARGS) |
| |
{ |
| |
char *name, *string; |
| |
|
| /* LINTED */ |
/* |
| while (argv[i]) |
* A symbol is named by the first word following the macro |
| if ( ! (*tree->cb.roffdata)(tree->arg, 0, argv[i++])) |
* invocation up to a space. Its value is anything after the |
| return(0); |
* name's trailing whitespace and optional double-quote. Thus, |
| |
* |
| |
* [.ds foo "bar " ] |
| |
* |
| |
* will have `bar " ' as its value. |
| |
*/ |
| |
|
| return((*tree->cb.roffout)(tree->arg, tok)); |
string = *bufp + pos; |
| |
name = roff_getname(r, &string, ln, pos); |
| |
if ('\0' == *name) |
| |
return(ROFF_IGN); |
| |
|
| |
/* Read past initial double-quote. */ |
| |
if ('"' == *string) |
| |
string++; |
| |
|
| |
/* The rest is the value. */ |
| |
roff_setstr(r, name, string, ROFF_as == tok); |
| |
return(ROFF_IGN); |
| } |
} |
| |
|
| |
void |
| |
roff_setreg(struct roff *r, const char *name, int val, char sign) |
| |
{ |
| |
struct roffreg *reg; |
| |
|
| /* ARGSUSED */ |
/* 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 |
| roff_text(ROFFCALL_ARGS) |
roff_getregro(const char *name) |
| { |
{ |
| int i, j, first, c, argcp[ROFF_MAXARG]; |
|
| char *v, *argvp[ROFF_MAXARG]; |
|
| |
|
| if (ROFF_PRELUDE & tree->state) { |
switch (*name) { |
| roff_err(tree, *argv, "`%s' disallowed in prelude", |
case ('A'): /* ASCII approximation mode is always off. */ |
| toknames[tok]); |
|
| return(0); |
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); |
| } |
} |
| |
} |
| |
|
| /* FIXME: breaks if passed from roff_layout. */ |
int |
| first = *argv == tree->cur; |
roff_getreg(const struct roff *r, const char *name) |
| |
{ |
| |
struct roffreg *reg; |
| |
int val; |
| |
|
| i = 0; |
if ('.' == name[0] && '\0' != name[1] && '\0' == name[2]) { |
| argv++; |
val = roff_getregro(name + 1); |
| |
if (-1 != val) |
| |
return (val); |
| |
} |
| |
|
| while (-1 != (c = roffnextopt(tree, tok, &argv, &v))) { |
for (reg = r->regtab; reg; reg = reg->next) |
| if (ROFF_ARGMAX == c) |
if (0 == strcmp(name, reg->key.p)) |
| return(0); |
return(reg->val); |
| |
|
| argcp[i] = c; |
return(0); |
| argvp[i] = v; |
} |
| i++; |
|
| argv++; |
static int |
| |
roff_getregn(const struct roff *r, const char *name, size_t len) |
| |
{ |
| |
struct roffreg *reg; |
| |
int val; |
| |
|
| |
if ('.' == name[0] && 2 == len) { |
| |
val = roff_getregro(name + 1); |
| |
if (-1 != val) |
| |
return (val); |
| } |
} |
| |
|
| argcp[i] = ROFF_ARGMAX; |
for (reg = r->regtab; reg; reg = reg->next) |
| argvp[i] = NULL; |
if (len == reg->key.sz && |
| |
0 == strncmp(name, reg->key.p, len)) |
| |
return(reg->val); |
| |
|
| if ( ! (*tree->cb.roffin)(tree->arg, tok, argcp, argvp)) |
return(0); |
| return(0); |
} |
| |
|
| if ( ! (ROFF_PARSED & tokens[tok].flags)) { |
static void |
| i = 0; |
roff_freereg(struct roffreg *reg) |
| while (*argv) { |
{ |
| if ( ! (*tree->cb.roffdata)(tree->arg, i, *argv++)) |
struct roffreg *old_reg; |
| return(0); |
|
| i = 1; |
while (NULL != reg) { |
| } |
free(reg->key.p); |
| return((*tree->cb.roffout)(tree->arg, tok)); |
old_reg = reg; |
| |
reg = reg->next; |
| |
free(old_reg); |
| } |
} |
| |
} |
| |
|
| i = 0; |
/* ARGSUSED */ |
| while (*argv) { |
static enum rofferr |
| if (ROFF_MAX == (c = rofffindcallable(*argv))) { |
roff_nr(ROFF_ARGS) |
| /* |
{ |
| * If all that remains is roff punctuation, then |
const char *key; |
| * close out our scope and return. |
char *val; |
| */ |
size_t sz; |
| if (roffispunct(*argv)) { |
int iv; |
| for (j = 0; argv[j]; j++) |
char sign; |
| if ( ! roffispunct(argv[j])) |
|
| break; |
|
| if (NULL == argv[j]) |
|
| break; |
|
| i = 1; |
|
| } |
|
| |
|
| if ( ! (*tree->cb.roffdata) |
|
| (tree->arg, i, *argv++)) |
|
| return(0); |
|
| |
|
| i = 1; |
val = *bufp + pos; |
| continue; |
key = roff_getname(r, &val, ln, pos); |
| } |
|
| |
|
| /* |
sign = *val; |
| * A sub-command has been found. Execute it and |
if ('+' == sign || '-' == sign) |
| * discontinue parsing for arguments. |
val++; |
| */ |
|
| |
|
| if (NULL == tokens[c].cb) { |
sz = strspn(val, "0123456789"); |
| roff_err(tree, *argv, "unsupported macro `%s'", |
iv = sz ? mandoc_strntoi(val, sz, 10) : 0; |
| toknames[c]); |
|
| return(0); |
|
| } |
|
| |
|
| if ( ! (*tokens[c].cb)(c, tree, argv, ROFF_ENTER)) |
|
| return(0); |
|
| |
|
| break; |
roff_setreg(r, key, iv, sign); |
| |
|
| |
return(ROFF_IGN); |
| |
} |
| |
|
| |
/* ARGSUSED */ |
| |
static enum rofferr |
| |
roff_rm(ROFF_ARGS) |
| |
{ |
| |
const char *name; |
| |
char *cp; |
| |
|
| |
cp = *bufp + pos; |
| |
while ('\0' != *cp) { |
| |
name = roff_getname(r, &cp, ln, (int)(cp - *bufp)); |
| |
if ('\0' != *name) |
| |
roff_setstr(r, name, NULL, 0); |
| } |
} |
| |
return(ROFF_IGN); |
| |
} |
| |
|
| if ( ! (*tree->cb.roffout)(tree->arg, tok)) |
/* ARGSUSED */ |
| return(0); |
static enum rofferr |
| |
roff_it(ROFF_ARGS) |
| |
{ |
| |
char *cp; |
| |
size_t len; |
| |
int iv; |
| |
|
| /* |
/* Parse the number of lines. */ |
| * If we're the first parser (*argv == tree->cur) then purge out |
cp = *bufp + pos; |
| * any additional punctuation, should there be any remaining at |
len = strcspn(cp, " \t"); |
| * the end of line. |
cp[len] = '\0'; |
| */ |
if ((iv = mandoc_strntoi(cp, len, 10)) <= 0) { |
| |
mandoc_msg(MANDOCERR_NUMERIC, r->parse, |
| |
ln, ppos, *bufp + 1); |
| |
return(ROFF_IGN); |
| |
} |
| |
cp += len + 1; |
| |
|
| if ( ! (first && *argv)) |
/* Arm the input line trap. */ |
| return(1); |
roffit_lines = iv; |
| |
roffit_macro = mandoc_strdup(cp); |
| |
return(ROFF_IGN); |
| |
} |
| |
|
| i = 0; |
/* ARGSUSED */ |
| while (argv[i]) |
static enum rofferr |
| i++; |
roff_Dd(ROFF_ARGS) |
| |
{ |
| |
const char *const *cp; |
| |
|
| assert(i > 0); |
if (0 == ((MPARSE_MDOC | MPARSE_QUICK) & r->options)) |
| if ( ! roffispunct(argv[--i])) |
for (cp = __mdoc_reserved; *cp; cp++) |
| return(1); |
roff_setstr(r, *cp, NULL, 0); |
| |
|
| while (i >= 0 && roffispunct(argv[i])) |
return(ROFF_CONT); |
| i--; |
} |
| |
|
| assert(0 != i); |
/* ARGSUSED */ |
| i++; |
static enum rofferr |
| |
roff_TH(ROFF_ARGS) |
| |
{ |
| |
const char *const *cp; |
| |
|
| /* LINTED */ |
if (0 == (MPARSE_QUICK & r->options)) |
| while (argv[i]) |
for (cp = __man_reserved; *cp; cp++) |
| if ( ! (*tree->cb.roffdata)(tree->arg, 0, argv[i++])) |
roff_setstr(r, *cp, NULL, 0); |
| return(0); |
|
| |
|
| return(1); |
return(ROFF_CONT); |
| } |
} |
| |
|
| |
/* ARGSUSED */ |
| |
static enum rofferr |
| |
roff_TE(ROFF_ARGS) |
| |
{ |
| |
|
| |
if (NULL == r->tbl) |
| |
mandoc_msg(MANDOCERR_NOSCOPE, r->parse, ln, ppos, NULL); |
| |
else |
| |
tbl_end(&r->tbl); |
| |
|
| |
return(ROFF_IGN); |
| |
} |
| |
|
| /* ARGSUSED */ |
/* ARGSUSED */ |
| |
static enum rofferr |
| |
roff_T_(ROFF_ARGS) |
| |
{ |
| |
|
| |
if (NULL == r->tbl) |
| |
mandoc_msg(MANDOCERR_NOSCOPE, r->parse, ln, ppos, NULL); |
| |
else |
| |
tbl_restart(ppos, ln, r->tbl); |
| |
|
| |
return(ROFF_IGN); |
| |
} |
| |
|
| |
#if 0 |
| static int |
static int |
| roff_comment(ROFFCALL_ARGS) |
roff_closeeqn(struct roff *r) |
| { |
{ |
| |
|
| return(1); |
return(r->eqn && ROFF_EQN == eqn_end(&r->eqn) ? 1 : 0); |
| } |
} |
| |
#endif |
| |
|
| |
static void |
| |
roff_openeqn(struct roff *r, const char *name, int line, |
| |
int offs, const char *buf) |
| |
{ |
| |
struct eqn_node *e; |
| |
int poff; |
| |
|
| |
assert(NULL == r->eqn); |
| |
e = eqn_alloc(name, offs, line, r->parse); |
| |
|
| |
if (r->last_eqn) |
| |
r->last_eqn->next = e; |
| |
else |
| |
r->first_eqn = r->last_eqn = e; |
| |
|
| |
r->eqn = r->last_eqn = e; |
| |
|
| |
if (buf) { |
| |
poff = 0; |
| |
eqn_read(&r->eqn, line, buf, offs, &poff); |
| |
} |
| |
} |
| |
|
| /* ARGSUSED */ |
/* ARGSUSED */ |
| static int |
static enum rofferr |
| roff_close(ROFFCALL_ARGS) |
roff_EQ(ROFF_ARGS) |
| { |
{ |
| |
|
| return(1); |
roff_openeqn(r, *bufp + pos, ln, ppos, NULL); |
| |
return(ROFF_IGN); |
| } |
} |
| |
|
| |
/* ARGSUSED */ |
| |
static enum rofferr |
| |
roff_EN(ROFF_ARGS) |
| |
{ |
| |
|
| #if notyet |
mandoc_msg(MANDOCERR_NOSCOPE, r->parse, ln, ppos, NULL); |
| |
return(ROFF_IGN); |
| |
} |
| |
|
| /* ARGSUSED */ |
/* ARGSUSED */ |
| static int |
static enum rofferr |
| roff_Ns(ROFFCALL_ARGS) |
roff_TS(ROFF_ARGS) |
| { |
{ |
| int c; |
struct tbl_node *tbl; |
| |
|
| argv++; |
if (r->tbl) { |
| |
mandoc_msg(MANDOCERR_SCOPEBROKEN, r->parse, ln, ppos, NULL); |
| |
tbl_end(&r->tbl); |
| |
} |
| |
|
| if (ROFF_MAX != (c = rofffindcallable(*argv))) { |
tbl = tbl_alloc(ppos, ln, r->parse); |
| if (NULL == tokens[c].cb) { |
|
| roff_err(tree, *argv, "unsupported macro `%s'", |
if (r->last_tbl) |
| toknames[c]); |
r->last_tbl->next = tbl; |
| return(0); |
else |
| |
r->first_tbl = r->last_tbl = tbl; |
| |
|
| |
r->tbl = r->last_tbl = tbl; |
| |
return(ROFF_IGN); |
| |
} |
| |
|
| |
/* ARGSUSED */ |
| |
static enum rofferr |
| |
roff_cc(ROFF_ARGS) |
| |
{ |
| |
const char *p; |
| |
|
| |
p = *bufp + pos; |
| |
|
| |
if ('\0' == *p || '.' == (r->control = *p++)) |
| |
r->control = 0; |
| |
|
| |
if ('\0' != *p) |
| |
mandoc_msg(MANDOCERR_ARGCOUNT, r->parse, ln, ppos, NULL); |
| |
|
| |
return(ROFF_IGN); |
| |
} |
| |
|
| |
/* ARGSUSED */ |
| |
static enum rofferr |
| |
roff_tr(ROFF_ARGS) |
| |
{ |
| |
const char *p, *first, *second; |
| |
size_t fsz, ssz; |
| |
enum mandoc_esc esc; |
| |
|
| |
p = *bufp + pos; |
| |
|
| |
if ('\0' == *p) { |
| |
mandoc_msg(MANDOCERR_ARGCOUNT, r->parse, ln, ppos, NULL); |
| |
return(ROFF_IGN); |
| |
} |
| |
|
| |
while ('\0' != *p) { |
| |
fsz = ssz = 1; |
| |
|
| |
first = p++; |
| |
if ('\\' == *first) { |
| |
esc = mandoc_escape(&p, NULL, NULL); |
| |
if (ESCAPE_ERROR == esc) { |
| |
mandoc_msg |
| |
(MANDOCERR_BADESCAPE, r->parse, |
| |
ln, (int)(p - *bufp), NULL); |
| |
return(ROFF_IGN); |
| |
} |
| |
fsz = (size_t)(p - first); |
| } |
} |
| if ( ! (*tree->cb.roffspecial)(tree->arg, tok)) |
|
| return(0); |
|
| if ( ! (*tokens[c].cb)(c, tree, argv, ROFF_ENTER)) |
|
| return(0); |
|
| |
|
| return(1); |
second = p++; |
| } else if ( ! (*tree->cb.roffdata)(tree->arg, 0, *argv++)) |
if ('\\' == *second) { |
| return(0); |
esc = mandoc_escape(&p, NULL, NULL); |
| |
if (ESCAPE_ERROR == esc) { |
| while (*argv) { |
mandoc_msg |
| if (ROFF_MAX == (c = rofffindcallable(*argv))) { |
(MANDOCERR_BADESCAPE, r->parse, |
| assert(tree->arg); |
ln, (int)(p - *bufp), NULL); |
| if ( ! (*tree->cb.roffdata) |
return(ROFF_IGN); |
| (tree->arg, 1, *argv++)) |
} |
| return(0); |
ssz = (size_t)(p - second); |
| |
} else if ('\0' == *second) { |
| |
mandoc_msg(MANDOCERR_ARGCOUNT, r->parse, |
| |
ln, (int)(p - *bufp), NULL); |
| |
second = " "; |
| |
p--; |
| |
} |
| |
|
| |
if (fsz > 1) { |
| |
roff_setstrn(&r->xmbtab, first, |
| |
fsz, second, ssz, 0); |
| continue; |
continue; |
| } |
} |
| if (NULL == tokens[c].cb) { |
|
| roff_err(tree, *argv, "unsupported macro `%s'", |
if (NULL == r->xtab) |
| toknames[c]); |
r->xtab = mandoc_calloc |
| return(0); |
(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); |
| |
} |
| |
|
| |
/* ARGSUSED */ |
| |
static enum rofferr |
| |
roff_so(ROFF_ARGS) |
| |
{ |
| |
char *name; |
| |
|
| |
mandoc_msg(MANDOCERR_SO, r->parse, ln, ppos, NULL); |
| |
|
| |
/* |
| |
* Handle `so'. Be EXTREMELY careful, as we shouldn't be |
| |
* opening anything that's not in our cwd or anything beneath |
| |
* it. Thus, explicitly disallow traversing up the file-system |
| |
* or using absolute paths. |
| |
*/ |
| |
|
| |
name = *bufp + pos; |
| |
if ('/' == *name || strstr(name, "../") || strstr(name, "/..")) { |
| |
mandoc_msg(MANDOCERR_SOPATH, r->parse, ln, pos, NULL); |
| |
return(ROFF_ERR); |
| |
} |
| |
|
| |
*offs = pos; |
| |
return(ROFF_SO); |
| |
} |
| |
|
| |
/* ARGSUSED */ |
| |
static enum rofferr |
| |
roff_userdef(ROFF_ARGS) |
| |
{ |
| |
const char *arg[9]; |
| |
char *cp, *n1, *n2; |
| |
int i; |
| |
|
| |
/* |
| |
* Collect pointers to macro argument strings |
| |
* and NUL-terminate them. |
| |
*/ |
| |
cp = *bufp + pos; |
| |
for (i = 0; i < 9; i++) |
| |
arg[i] = '\0' == *cp ? "" : |
| |
mandoc_getarg(r->parse, &cp, ln, &pos); |
| |
|
| |
/* |
| |
* Expand macro arguments. |
| |
*/ |
| |
*szp = 0; |
| |
n1 = cp = mandoc_strdup(r->current_string); |
| |
while (NULL != (cp = strstr(cp, "\\$"))) { |
| |
i = cp[2] - '1'; |
| |
if (0 > i || 8 < i) { |
| |
/* Not an argument invocation. */ |
| |
cp += 2; |
| |
continue; |
| } |
} |
| if ( ! (*tokens[c].cb)(c, tree, argv, ROFF_ENTER)) |
|
| return(0); |
|
| |
|
| break; |
*szp = strlen(n1) - 3 + strlen(arg[i]) + 1; |
| |
n2 = mandoc_malloc(*szp); |
| |
|
| |
strlcpy(n2, n1, (size_t)(cp - n1 + 1)); |
| |
strlcat(n2, arg[i], *szp); |
| |
strlcat(n2, cp + 3, *szp); |
| |
|
| |
cp = n2 + (cp - n1); |
| |
free(n1); |
| |
n1 = n2; |
| } |
} |
| |
|
| return(1); |
/* |
| |
* Replace the macro invocation |
| |
* by the expanded macro. |
| |
*/ |
| |
free(*bufp); |
| |
*bufp = n1; |
| |
if (0 == *szp) |
| |
*szp = strlen(*bufp) + 1; |
| |
|
| |
return(*szp > 1 && '\n' == (*bufp)[(int)*szp - 2] ? |
| |
ROFF_REPARSE : ROFF_APPEND); |
| } |
} |
| #endif |
|
| |
|
| |
static char * |
| |
roff_getname(struct roff *r, char **cpp, int ln, int pos) |
| |
{ |
| |
char *name, *cp; |
| |
|
| |
name = *cpp; |
| |
if ('\0' == *name) |
| |
return(name); |
| |
|
| |
/* Read until end of name. */ |
| |
for (cp = name; '\0' != *cp && ' ' != *cp; cp++) { |
| |
if ('\\' != *cp) |
| |
continue; |
| |
cp++; |
| |
if ('\\' == *cp) |
| |
continue; |
| |
mandoc_msg(MANDOCERR_NAMESC, r->parse, ln, pos, NULL); |
| |
*cp = '\0'; |
| |
name = cp; |
| |
} |
| |
|
| |
/* Nil-terminate name. */ |
| |
if ('\0' != *cp) |
| |
*(cp++) = '\0'; |
| |
|
| |
/* Read past spaces. */ |
| |
while (' ' == *cp) |
| |
cp++; |
| |
|
| |
*cpp = cp; |
| |
return(name); |
| |
} |
| |
|
| |
/* |
| |
* Store *string into the user-defined string called *name. |
| |
* To clear an existing entry, call with (*r, *name, NULL, 0). |
| |
* append == 0: replace mode |
| |
* append == 1: single-line append mode |
| |
* append == 2: multiline append mode, append '\n' after each call |
| |
*/ |
| static void |
static void |
| roff_warn(const struct rofftree *tree, const char *pos, char *fmt, ...) |
roff_setstr(struct roff *r, const char *name, const char *string, |
| |
int append) |
| { |
{ |
| va_list ap; |
|
| char buf[128]; |
|
| |
|
| va_start(ap, fmt); |
roff_setstrn(&r->strtab, name, strlen(name), string, |
| (void)vsnprintf(buf, sizeof(buf), fmt, ap); |
string ? strlen(string) : 0, append); |
| va_end(ap); |
} |
| |
|
| (*tree->cb.roffmsg)(tree->arg, |
static void |
| ROFF_WARN, tree->cur, pos, buf); |
roff_setstrn(struct roffkv **r, const char *name, size_t namesz, |
| |
const char *string, size_t stringsz, int append) |
| |
{ |
| |
struct roffkv *n; |
| |
char *c; |
| |
int i; |
| |
size_t oldch, newch; |
| |
|
| |
/* Search for an existing string with the same name. */ |
| |
n = *r; |
| |
|
| |
while (n && strcmp(name, n->key.p)) |
| |
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; |
| |
while (i < (int)stringsz) { |
| |
/* |
| |
* Rudimentary roff copy mode: |
| |
* Handle escaped backslashes. |
| |
*/ |
| |
if ('\\' == string[i] && '\\' == string[i + 1]) |
| |
i++; |
| |
*c++ = string[i++]; |
| |
} |
| |
|
| |
/* Append terminating bytes. */ |
| |
if (1 < append) |
| |
*c++ = '\n'; |
| |
|
| |
*c = '\0'; |
| |
n->val.sz = (int)(c - n->val.p); |
| } |
} |
| |
|
| |
static const char * |
| |
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 |
static void |
| roff_err(const struct rofftree *tree, const char *pos, char *fmt, ...) |
roff_freestr(struct roffkv *r) |
| { |
{ |
| va_list ap; |
struct roffkv *n, *nn; |
| char buf[128]; |
|
| |
|
| va_start(ap, fmt); |
for (n = r; n; n = nn) { |
| (void)vsnprintf(buf, sizeof(buf), fmt, ap); |
free(n->key.p); |
| va_end(ap); |
free(n->val.p); |
| |
nn = n->next; |
| |
free(n); |
| |
} |
| |
} |
| |
|
| (*tree->cb.roffmsg)(tree->arg, |
const struct tbl_span * |
| ROFF_ERROR, tree->cur, pos, buf); |
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) { |
| |
if ('\\' != *p && r->xtab && r->xtab[(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; |
| |
} |
| |
|
| |
res[(int)ssz] = '\0'; |
| |
return(res); |
| |
} |
| |
|
| |
/* |
| |
* 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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