version 1.91, 2010/06/27 16:36:22 |
version 1.95, 2010/07/21 09:15:48 |
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/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2010 Kristaps Dzonsons <kristaps@bsd.lv> |
* Copyright (c) 2010 Kristaps Dzonsons <kristaps@bsd.lv> |
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* Copyright (c) 2010 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 above |
* purpose with or without fee is hereby granted, provided that the above |
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#include <stdio.h> |
#include <stdio.h> |
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#include "mandoc.h" |
#include "mandoc.h" |
#include "regs.h" |
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#include "roff.h" |
#include "roff.h" |
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#include "libmandoc.h" |
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#define RSTACK_MAX 128 |
#define RSTACK_MAX 128 |
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ROFFRULE_DENY |
ROFFRULE_DENY |
}; |
}; |
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struct roffstr { |
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char *name; /* key of symbol */ |
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char *string; /* current value */ |
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struct roffstr *next; /* next in list */ |
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}; |
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struct roff { |
struct roff { |
struct roffnode *last; /* leaf of stack */ |
struct roffnode *last; /* leaf of stack */ |
mandocmsg msg; /* err/warn/fatal messages */ |
mandocmsg msg; /* err/warn/fatal messages */ |
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enum roffrule rstack[RSTACK_MAX]; /* stack of !`ie' rules */ |
enum roffrule rstack[RSTACK_MAX]; /* stack of !`ie' rules */ |
int rstackpos; /* position in rstack */ |
int rstackpos; /* position in rstack */ |
struct regset *regs; /* read/writable registers */ |
struct regset *regs; /* read/writable registers */ |
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struct roffstr *first_string; |
}; |
}; |
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struct roffnode { |
struct roffnode { |
Line 116 static enum rofferr roff_ccond(ROFF_ARGS); |
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Line 125 static enum rofferr roff_ccond(ROFF_ARGS); |
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static enum rofferr roff_cond(ROFF_ARGS); |
static enum rofferr roff_cond(ROFF_ARGS); |
static enum rofferr roff_cond_text(ROFF_ARGS); |
static enum rofferr roff_cond_text(ROFF_ARGS); |
static enum rofferr roff_cond_sub(ROFF_ARGS); |
static enum rofferr roff_cond_sub(ROFF_ARGS); |
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static enum rofferr roff_ds(ROFF_ARGS); |
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static enum roffrule roff_evalcond(const char *, int *); |
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static void roff_freestr(struct roff *); |
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static const char *roff_getstrn(const struct roff *, |
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const char *, size_t); |
static enum rofferr roff_line(ROFF_ARGS); |
static enum rofferr roff_line(ROFF_ARGS); |
static enum rofferr roff_nr(ROFF_ARGS); |
static enum rofferr roff_nr(ROFF_ARGS); |
static enum roffrule roff_evalcond(const char *, int *); |
static int roff_res(struct roff *, |
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char **, size_t *, int); |
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static void roff_setstr(struct roff *, |
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const char *, const char *); |
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/* See roff_hash_find() */ |
/* See roff_hash_find() */ |
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Line 135 static struct roffmac roffs[ROFF_MAX] = { |
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Line 152 static struct roffmac roffs[ROFF_MAX] = { |
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{ "de", roff_block, roff_block_text, roff_block_sub, 0, NULL }, |
{ "de", roff_block, roff_block_text, roff_block_sub, 0, NULL }, |
{ "dei", 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 }, |
{ "de1", roff_block, roff_block_text, roff_block_sub, 0, NULL }, |
{ "ds", roff_line, NULL, NULL, 0, NULL }, |
{ "ds", roff_ds, NULL, NULL, 0, NULL }, |
{ "el", roff_cond, roff_cond_text, roff_cond_sub, ROFFMAC_STRUCT, NULL }, |
{ "el", roff_cond, roff_cond_text, roff_cond_sub, ROFFMAC_STRUCT, NULL }, |
{ "ie", roff_cond, roff_cond_text, roff_cond_sub, ROFFMAC_STRUCT, 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 }, |
{ "if", roff_cond, roff_cond_text, roff_cond_sub, ROFFMAC_STRUCT, NULL }, |
Line 268 roff_free1(struct roff *r) |
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Line 285 roff_free1(struct roff *r) |
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while (r->last) |
while (r->last) |
roffnode_pop(r); |
roffnode_pop(r); |
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roff_freestr(r); |
} |
} |
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Line 308 roff_alloc(struct regset *regs, const mandocmsg msg, v |
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Line 326 roff_alloc(struct regset *regs, const mandocmsg msg, v |
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} |
} |
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/* |
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* Pre-filter each and every line for reserved words (one beginning with |
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* `\*', e.g., `\*(ab'). These must be handled before the actual line |
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* is processed. |
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*/ |
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static int |
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roff_res(struct roff *r, char **bufp, size_t *szp, int pos) |
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{ |
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const char *cp, *cpp, *st, *res; |
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int i, maxl; |
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size_t nsz; |
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char *n; |
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/* LINTED */ |
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for (cp = &(*bufp)[pos]; (cpp = strstr(cp, "\\*")); cp++) { |
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cp = cpp + 2; |
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switch (*cp) { |
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case ('('): |
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cp++; |
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maxl = 2; |
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break; |
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case ('['): |
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cp++; |
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maxl = 0; |
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break; |
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default: |
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maxl = 1; |
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break; |
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} |
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st = cp; |
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for (i = 0; 0 == maxl || i < maxl; i++, cp++) { |
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if ('\0' == *cp) |
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return(1); /* Error. */ |
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if (0 == maxl && ']' == *cp) |
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break; |
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} |
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res = roff_getstrn(r, st, (size_t)i); |
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if (NULL == res) { |
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cp -= maxl ? 1 : 0; |
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continue; |
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} |
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ROFF_DEBUG("roff: splicing reserved: [%.*s]\n", i, st); |
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nsz = *szp + strlen(res) + 1; |
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n = mandoc_malloc(nsz); |
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*n = '\0'; |
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strlcat(n, *bufp, (size_t)(cpp - *bufp + 1)); |
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strlcat(n, res, nsz); |
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strlcat(n, cp + (maxl ? 0 : 1), nsz); |
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free(*bufp); |
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*bufp = n; |
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*szp = nsz; |
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return(0); |
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} |
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return(1); |
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} |
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enum rofferr |
enum rofferr |
roff_parseln(struct roff *r, int ln, char **bufp, |
roff_parseln(struct roff *r, int ln, char **bufp, |
size_t *szp, int pos, int *offs) |
size_t *szp, int pos, int *offs) |
Line 316 roff_parseln(struct roff *r, int ln, char **bufp, |
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Line 402 roff_parseln(struct roff *r, int ln, char **bufp, |
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int ppos; |
int ppos; |
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/* |
/* |
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* Run the reserved-word filter only if we have some reserved |
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* words to fill in. |
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*/ |
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if (r->first_string && ! roff_res(r, bufp, szp, pos)) |
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return(ROFF_RERUN); |
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/* |
* First, if a scope is open and we're not a macro, pass the |
* First, if a scope is open and we're not a macro, pass the |
* text through the macro's filter. If a scope isn't open and |
* text through the macro's filter. If a scope isn't open and |
* we're not a macro, just let it through. |
* we're not a macro, just let it through. |
Line 329 roff_parseln(struct roff *r, int ln, char **bufp, |
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Line 423 roff_parseln(struct roff *r, int ln, char **bufp, |
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return((*roffs[t].text) |
return((*roffs[t].text) |
(r, t, bufp, szp, |
(r, t, bufp, szp, |
ln, pos, pos, offs)); |
ln, pos, pos, offs)); |
} else if ( ! ROFF_CTL((*bufp)[pos])) { |
} else if ( ! ROFF_CTL((*bufp)[pos])) |
ROFF_DEBUG("roff: pass non-scoped text: [%s]\n", |
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&(*bufp)[pos]); |
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return(ROFF_CONT); |
return(ROFF_CONT); |
} |
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/* |
/* |
* If a scope is open, go to the child handler for that macro, |
* If a scope is open, go to the child handler for that macro, |
Line 357 roff_parseln(struct roff *r, int ln, char **bufp, |
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Line 448 roff_parseln(struct roff *r, int ln, char **bufp, |
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*/ |
*/ |
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ppos = pos; |
ppos = pos; |
if (ROFF_MAX == (t = roff_parse(*bufp, &pos))) { |
if (ROFF_MAX == (t = roff_parse(*bufp, &pos))) |
ROFF_DEBUG("roff: pass non-scoped non-macro: [%s]\n", |
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&(*bufp)[pos]); |
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return(ROFF_CONT); |
return(ROFF_CONT); |
} |
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ROFF_DEBUG("roff: intercept new-scope: %s, [%s]\n", |
ROFF_DEBUG("roff: intercept new-scope: %s, [%s]\n", |
roffs[t].name, &(*bufp)[pos]); |
roffs[t].name, &(*bufp)[pos]); |
Line 879 roff_cond(ROFF_ARGS) |
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Line 967 roff_cond(ROFF_ARGS) |
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/* ARGSUSED */ |
/* ARGSUSED */ |
static enum rofferr |
static enum rofferr |
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roff_ds(ROFF_ARGS) |
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{ |
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char *name, *string, *end; |
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name = *bufp + pos; |
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if ('\0' == *name) |
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return(ROFF_IGN); |
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string = name; |
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while (*string && ' ' != *string) |
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string++; |
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if (*string) |
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*(string++) = NULL; |
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if (*string && '"' == *string) |
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string++; |
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while (*string && ' ' == *string) |
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string++; |
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end = string; |
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while (*end) |
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end++; |
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if (string < end) { |
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end--; |
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if (*end == '"') |
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*end = '\0'; |
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} |
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roff_setstr(r, name, string); |
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return(ROFF_IGN); |
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} |
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/* ARGSUSED */ |
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static enum rofferr |
roff_nr(ROFF_ARGS) |
roff_nr(ROFF_ARGS) |
{ |
{ |
const char *key, *val; |
const char *key, *val; |
Line 917 roff_nr(ROFF_ARGS) |
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Line 1038 roff_nr(ROFF_ARGS) |
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ROFF_DEBUG("roff: ignoring register: %s\n", key); |
ROFF_DEBUG("roff: ignoring register: %s\n", key); |
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return(ROFF_IGN); |
return(ROFF_IGN); |
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} |
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static void |
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roff_setstr(struct roff *r, const char *name, const char *string) |
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{ |
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struct roffstr *n; |
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char *namecopy; |
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n = r->first_string; |
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while (n && strcmp(name, n->name)) |
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n = n->next; |
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if (NULL == n) { |
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namecopy = mandoc_strdup(name); |
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n = mandoc_malloc(sizeof(struct roffstr)); |
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n->name = namecopy; |
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n->next = r->first_string; |
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r->first_string = n; |
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} else |
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free(n->string); |
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n->string = string ? strdup(string) : NULL; |
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} |
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static const char * |
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roff_getstrn(const struct roff *r, const char *name, size_t len) |
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{ |
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const struct roffstr *n; |
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n = r->first_string; |
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while (n && (strncmp(name, n->name, len) || '\0' != n->name[len])) |
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n = n->next; |
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return(n ? n->string : NULL); |
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} |
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static void |
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roff_freestr(struct roff *r) |
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{ |
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struct roffstr *n, *nn; |
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for (n = r->first_string; n; n = nn) { |
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free(n->name); |
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free(n->string); |
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nn = n->next; |
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free(n); |
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} |
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r->first_string = NULL; |
} |
} |