version 1.266, 2015/04/19 13:50:26 |
version 1.272, 2015/06/27 13:29:14 |
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/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2009-2012, 2014 Kristaps Dzonsons <kristaps@bsd.lv> |
* Copyright (c) 2008-2012, 2014 Kristaps Dzonsons <kristaps@bsd.lv> |
* Copyright (c) 2010-2015 Ingo Schwarze <schwarze@openbsd.org> |
* Copyright (c) 2010-2015 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 |
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#include "libmandoc.h" |
#include "libmandoc.h" |
#include "roff_int.h" |
#include "roff_int.h" |
#include "libroff.h" |
#include "libroff.h" |
#include "libmdoc.h" |
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/* Maximum number of nested if-else conditionals. */ |
/* Maximum number of nested if-else conditionals. */ |
#define RSTACK_MAX 128 |
#define RSTACK_MAX 128 |
Line 398 static enum rofferr roff_cond_text(ROFF_ARGS); |
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Line 397 static enum rofferr roff_cond_text(ROFF_ARGS); |
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static enum rofferr roff_cond_sub(ROFF_ARGS); |
static enum rofferr roff_cond_sub(ROFF_ARGS); |
static enum rofferr roff_ds(ROFF_ARGS); |
static enum rofferr roff_ds(ROFF_ARGS); |
static enum rofferr roff_eqndelim(struct roff *, struct buf *, int); |
static enum rofferr roff_eqndelim(struct roff *, struct buf *, int); |
static int roff_evalcond(struct roff *r, int, |
static int roff_evalcond(struct roff *r, int, char *, int *); |
const char *, int *); |
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static int roff_evalnum(struct roff *, int, |
static int roff_evalnum(struct roff *, int, |
const char *, int *, int *, int); |
const char *, int *, int *, int); |
static int roff_evalpar(struct roff *, int, |
static int roff_evalpar(struct roff *, int, |
Line 416 static int roff_getregn(const struct roff *, |
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Line 414 static int roff_getregn(const struct roff *, |
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static int roff_getregro(const char *name); |
static int roff_getregro(const char *name); |
static const char *roff_getstrn(const struct roff *, |
static const char *roff_getstrn(const struct roff *, |
const char *, size_t); |
const char *, size_t); |
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static int roff_hasregn(const struct roff *, |
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const char *, size_t); |
static enum rofferr roff_insec(ROFF_ARGS); |
static enum rofferr roff_insec(ROFF_ARGS); |
static enum rofferr roff_it(ROFF_ARGS); |
static enum rofferr roff_it(ROFF_ARGS); |
static enum rofferr roff_line_ignore(ROFF_ARGS); |
static enum rofferr roff_line_ignore(ROFF_ARGS); |
Line 1023 roff_node_append(struct roff_man *man, struct roff_nod |
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Line 1023 roff_node_append(struct roff_man *man, struct roff_nod |
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/* NOTREACHED */ |
/* NOTREACHED */ |
} |
} |
n->parent->nchild++; |
n->parent->nchild++; |
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n->parent->last = n; |
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/* |
/* |
* Copy over the normalised-data pointer of our parent. Not |
* Copy over the normalised-data pointer of our parent. Not |
Line 1067 roff_node_append(struct roff_man *man, struct roff_nod |
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Line 1068 roff_node_append(struct roff_man *man, struct roff_nod |
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man->last = n; |
man->last = n; |
} |
} |
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void |
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roff_word_alloc(struct roff_man *man, int line, int pos, const char *word) |
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{ |
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struct roff_node *n; |
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n = roff_node_alloc(man, line, pos, ROFFT_TEXT, TOKEN_NONE); |
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n->string = roff_strdup(man->roff, word); |
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roff_node_append(man, n); |
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if (man->macroset == MACROSET_MDOC) |
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mdoc_valid_post(man); |
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else |
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man_valid_post(man); |
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man->next = ROFF_NEXT_SIBLING; |
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} |
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void |
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roff_word_append(struct roff_man *man, const char *word) |
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{ |
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struct roff_node *n; |
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char *addstr, *newstr; |
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n = man->last; |
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addstr = roff_strdup(man->roff, word); |
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mandoc_asprintf(&newstr, "%s %s", n->string, addstr); |
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free(addstr); |
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free(n->string); |
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n->string = newstr; |
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man->next = ROFF_NEXT_SIBLING; |
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} |
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void |
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roff_elem_alloc(struct roff_man *man, int line, int pos, int tok) |
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{ |
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struct roff_node *n; |
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n = roff_node_alloc(man, line, pos, ROFFT_ELEM, tok); |
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roff_node_append(man, n); |
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man->next = ROFF_NEXT_CHILD; |
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} |
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struct roff_node * |
struct roff_node * |
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roff_block_alloc(struct roff_man *man, int line, int pos, int tok) |
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{ |
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struct roff_node *n; |
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n = roff_node_alloc(man, line, pos, ROFFT_BLOCK, tok); |
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roff_node_append(man, n); |
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man->next = ROFF_NEXT_CHILD; |
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return(n); |
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} |
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struct roff_node * |
roff_head_alloc(struct roff_man *man, int line, int pos, int tok) |
roff_head_alloc(struct roff_man *man, int line, int pos, int tok) |
{ |
{ |
struct roff_node *n; |
struct roff_node *n; |
Line 1090 roff_body_alloc(struct roff_man *man, int line, int po |
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Line 1142 roff_body_alloc(struct roff_man *man, int line, int po |
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} |
} |
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void |
void |
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roff_addeqn(struct roff_man *man, const struct eqn *eqn) |
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{ |
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struct roff_node *n; |
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n = roff_node_alloc(man, eqn->ln, eqn->pos, ROFFT_EQN, TOKEN_NONE); |
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n->eqn = eqn; |
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if (eqn->ln > man->last->line) |
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n->flags |= MDOC_LINE; |
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roff_node_append(man, n); |
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man->next = ROFF_NEXT_SIBLING; |
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} |
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void |
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roff_addtbl(struct roff_man *man, const struct tbl_span *tbl) |
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{ |
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struct roff_node *n; |
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if (man->macroset == MACROSET_MAN) |
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man_breakscope(man, TOKEN_NONE); |
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n = roff_node_alloc(man, tbl->line, 0, ROFFT_TBL, TOKEN_NONE); |
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n->span = tbl; |
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roff_node_append(man, n); |
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if (man->macroset == MACROSET_MDOC) |
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mdoc_valid_post(man); |
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else |
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man_valid_post(man); |
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man->next = ROFF_NEXT_SIBLING; |
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} |
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void |
roff_node_unlink(struct roff_man *man, struct roff_node *n) |
roff_node_unlink(struct roff_man *man, struct roff_node *n) |
{ |
{ |
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Line 1150 roff_node_delete(struct roff_man *man, struct roff_nod |
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Line 1232 roff_node_delete(struct roff_man *man, struct roff_nod |
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roff_node_free(n); |
roff_node_free(n); |
} |
} |
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void |
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deroff(char **dest, const struct roff_node *n) |
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{ |
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char *cp; |
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size_t sz; |
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if (n->type != ROFFT_TEXT) { |
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for (n = n->child; n != NULL; n = n->next) |
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deroff(dest, n); |
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return; |
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} |
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/* Skip leading whitespace and escape sequences. */ |
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cp = n->string; |
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while (*cp != '\0') { |
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if ('\\' == *cp) { |
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cp++; |
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mandoc_escape((const char **)&cp, NULL, NULL); |
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} else if (isspace((unsigned char)*cp)) |
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cp++; |
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else |
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break; |
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} |
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/* Skip trailing whitespace. */ |
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for (sz = strlen(cp); sz; sz--) |
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if ( ! isspace((unsigned char)cp[sz-1])) |
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break; |
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/* Skip empty strings. */ |
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if (sz == 0) |
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return; |
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if (*dest == NULL) { |
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*dest = mandoc_strndup(cp, sz); |
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return; |
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} |
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mandoc_asprintf(&cp, "%s %*s", *dest, (int)sz, cp); |
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free(*dest); |
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*dest = cp; |
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} |
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/* --- main functions of the roff parser ---------------------------------- */ |
/* --- main functions of the roff parser ---------------------------------- */ |
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/* |
/* |
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* or string condition. |
* or string condition. |
*/ |
*/ |
static int |
static int |
roff_evalcond(struct roff *r, int ln, const char *v, int *pos) |
roff_evalcond(struct roff *r, int ln, char *v, int *pos) |
{ |
{ |
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char *cp, *name; |
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size_t sz; |
int number, savepos, wanttrue; |
int number, savepos, wanttrue; |
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if ('!' == v[*pos]) { |
if ('!' == v[*pos]) { |
Line 2031 roff_evalcond(struct roff *r, int ln, const char *v, i |
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Line 2161 roff_evalcond(struct roff *r, int ln, const char *v, i |
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/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case 'e': |
case 'e': |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case 'r': |
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/* FALLTHROUGH */ |
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case 't': |
case 't': |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case 'v': |
case 'v': |
(*pos)++; |
(*pos)++; |
return(!wanttrue); |
return(!wanttrue); |
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case 'r': |
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cp = name = v + ++*pos; |
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sz = roff_getname(r, &cp, ln, *pos); |
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*pos = cp - v; |
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return((sz && roff_hasregn(r, name, sz)) == wanttrue); |
default: |
default: |
break; |
break; |
} |
} |
Line 2132 roff_cond(ROFF_ARGS) |
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Line 2265 roff_cond(ROFF_ARGS) |
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if (buf->buf[pos] == '\\' && buf->buf[pos + 1] == '{') { |
if (buf->buf[pos] == '\\' && buf->buf[pos + 1] == '{') { |
r->last->endspan = -1; |
r->last->endspan = -1; |
pos += 2; |
pos += 2; |
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while (buf->buf[pos] == ' ') |
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pos++; |
goto out; |
goto out; |
} |
} |
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Line 2496 roff_getregn(const struct roff *r, const char *name, s |
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Line 2631 roff_getregn(const struct roff *r, const char *name, s |
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if (len == reg->key.sz && |
if (len == reg->key.sz && |
0 == strncmp(name, reg->key.p, len)) |
0 == strncmp(name, reg->key.p, len)) |
return(reg->val); |
return(reg->val); |
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return(0); |
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} |
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static int |
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roff_hasregn(const struct roff *r, const char *name, size_t len) |
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{ |
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struct roffreg *reg; |
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int val; |
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if ('.' == name[0] && 2 == len) { |
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val = roff_getregro(name + 1); |
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if (-1 != val) |
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return(1); |
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} |
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for (reg = r->regtab; reg; reg = reg->next) |
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if (len == reg->key.sz && |
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0 == strncmp(name, reg->key.p, len)) |
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return(1); |
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return(0); |
return(0); |
} |
} |