version 1.255, 2015/01/23 20:18:40 |
version 1.270, 2015/05/01 16:02:47 |
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/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2010, 2011, 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 "mandoc.h" |
#include "mandoc.h" |
#include "mandoc_aux.h" |
#include "mandoc_aux.h" |
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#include "roff.h" |
#include "libmandoc.h" |
#include "libmandoc.h" |
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#include "roff_int.h" |
#include "libroff.h" |
#include "libroff.h" |
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/* Maximum number of nested if-else conditionals. */ |
/* Maximum number of nested if-else conditionals. */ |
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/* Maximum number of string expansions per line, to break infinite loops. */ |
/* Maximum number of string expansions per line, to break infinite loops. */ |
#define EXPAND_LIMIT 1000 |
#define EXPAND_LIMIT 1000 |
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/* --- data types --------------------------------------------------------- */ |
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enum rofft { |
enum rofft { |
ROFF_ab, |
ROFF_ab, |
ROFF_ad, |
ROFF_ad, |
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ROFF_minss, |
ROFF_minss, |
ROFF_mk, |
ROFF_mk, |
ROFF_mso, |
ROFF_mso, |
/* MAN_na; ignored in mdoc(7) */ |
ROFF_na, |
ROFF_ne, |
ROFF_ne, |
/* MAN_nf; ignored in mdoc(7) */ |
/* MAN_nf; ignored in mdoc(7) */ |
ROFF_nh, |
ROFF_nh, |
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#define PREDEF(__name, __str) \ |
#define PREDEF(__name, __str) \ |
{ (__name), (__str) }, |
{ (__name), (__str) }, |
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/* --- function prototypes ------------------------------------------------ */ |
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static enum rofft roffhash_find(const char *, size_t); |
static enum rofft roffhash_find(const char *, size_t); |
static void roffhash_init(void); |
static void roffhash_init(void); |
static void roffnode_cleanscope(struct roff *); |
static void roffnode_cleanscope(struct roff *); |
Line 396 static int roff_evalcond(struct roff *r, int, |
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Line 402 static int roff_evalcond(struct roff *r, 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, |
const char *, int *, int *); |
const char *, int *, int *, int); |
static int roff_evalstrcond(const char *, int *); |
static int roff_evalstrcond(const char *, int *); |
static void roff_free1(struct roff *); |
static void roff_free1(struct roff *); |
static void roff_freereg(struct roffreg *); |
static void roff_freereg(struct roffreg *); |
static void roff_freestr(struct roffkv *); |
static void roff_freestr(struct roffkv *); |
static size_t roff_getname(struct roff *, char **, int, int); |
static size_t roff_getname(struct roff *, char **, int, int); |
static int roff_getnum(const char *, int *, int *); |
static int roff_getnum(const char *, int *, int *, int); |
static int roff_getop(const char *, int *, char *); |
static int roff_getop(const char *, int *, char *); |
static int roff_getregn(const struct roff *, |
static int roff_getregn(const struct roff *, |
const char *, size_t); |
const char *, size_t); |
Line 412 static const char *roff_getstrn(const struct roff *, |
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Line 418 static const char *roff_getstrn(const struct roff *, |
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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); |
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static void roff_man_alloc1(struct roff_man *); |
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static void roff_man_free1(struct roff_man *); |
static enum rofferr roff_nr(ROFF_ARGS); |
static enum rofferr roff_nr(ROFF_ARGS); |
static enum rofft roff_parse(struct roff *, char *, int *, |
static enum rofft roff_parse(struct roff *, char *, int *, |
int, int); |
int, int); |
Line 435 static enum rofferr roff_T_(ROFF_ARGS); |
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Line 443 static enum rofferr roff_T_(ROFF_ARGS); |
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static enum rofferr roff_unsupp(ROFF_ARGS); |
static enum rofferr roff_unsupp(ROFF_ARGS); |
static enum rofferr roff_userdef(ROFF_ARGS); |
static enum rofferr roff_userdef(ROFF_ARGS); |
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/* --- constant data ------------------------------------------------------ */ |
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/* See roffhash_find() */ |
/* See roffhash_find() */ |
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#define ASCII_HI 126 |
#define ASCII_HI 126 |
#define ASCII_LO 33 |
#define ASCII_LO 33 |
#define HASHWIDTH (ASCII_HI - ASCII_LO + 1) |
#define HASHWIDTH (ASCII_HI - ASCII_LO + 1) |
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#define ROFFNUM_SCALE (1 << 0) /* Honour scaling in roff_getnum(). */ |
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#define ROFFNUM_WHITE (1 << 1) /* Skip whitespace in roff_evalnum(). */ |
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static struct roffmac *hash[HASHWIDTH]; |
static struct roffmac *hash[HASHWIDTH]; |
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static struct roffmac roffs[ROFF_MAX] = { |
static struct roffmac roffs[ROFF_MAX] = { |
Line 580 static struct roffmac roffs[ROFF_MAX] = { |
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Line 593 static struct roffmac roffs[ROFF_MAX] = { |
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{ "minss", roff_line_ignore, NULL, NULL, 0, NULL }, |
{ "minss", roff_line_ignore, NULL, NULL, 0, NULL }, |
{ "mk", roff_line_ignore, NULL, NULL, 0, NULL }, |
{ "mk", roff_line_ignore, NULL, NULL, 0, NULL }, |
{ "mso", roff_insec, NULL, NULL, 0, NULL }, |
{ "mso", roff_insec, NULL, NULL, 0, NULL }, |
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{ "na", roff_line_ignore, NULL, NULL, 0, NULL }, |
{ "ne", roff_line_ignore, NULL, NULL, 0, NULL }, |
{ "ne", roff_line_ignore, NULL, NULL, 0, NULL }, |
{ "nh", roff_line_ignore, NULL, NULL, 0, NULL }, |
{ "nh", roff_line_ignore, NULL, NULL, 0, NULL }, |
{ "nhychar", roff_line_ignore, NULL, NULL, 0, NULL }, |
{ "nhychar", roff_line_ignore, NULL, NULL, 0, NULL }, |
Line 727 static int roffit_lines; /* number of lines to delay |
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Line 741 static int roffit_lines; /* number of lines to delay |
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static char *roffit_macro; /* nil-terminated macro line */ |
static char *roffit_macro; /* nil-terminated macro line */ |
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/* --- request table ------------------------------------------------------ */ |
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static void |
static void |
roffhash_init(void) |
roffhash_init(void) |
{ |
{ |
Line 779 roffhash_find(const char *p, size_t s) |
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Line 795 roffhash_find(const char *p, size_t s) |
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return(ROFF_MAX); |
return(ROFF_MAX); |
} |
} |
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/* --- stack of request blocks -------------------------------------------- */ |
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/* |
/* |
* Pop the current node off of the stack of roff instructions currently |
* Pop the current node off of the stack of roff instructions currently |
* pending. |
* pending. |
Line 819 roffnode_push(struct roff *r, enum rofft tok, const ch |
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Line 837 roffnode_push(struct roff *r, enum rofft tok, const ch |
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r->last = p; |
r->last = p; |
} |
} |
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/* --- roff parser state data management ---------------------------------- */ |
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static void |
static void |
roff_free1(struct roff *r) |
roff_free1(struct roff *r) |
{ |
{ |
Line 894 roff_alloc(struct mparse *parse, const struct mchars * |
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Line 914 roff_alloc(struct mparse *parse, const struct mchars * |
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return(r); |
return(r); |
} |
} |
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/* --- syntax tree state data management ---------------------------------- */ |
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static void |
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roff_man_free1(struct roff_man *man) |
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{ |
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if (man->first != NULL) |
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roff_node_delete(man, man->first); |
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free(man->meta.msec); |
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free(man->meta.vol); |
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free(man->meta.os); |
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free(man->meta.arch); |
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free(man->meta.title); |
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free(man->meta.name); |
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free(man->meta.date); |
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} |
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static void |
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roff_man_alloc1(struct roff_man *man) |
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{ |
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memset(&man->meta, 0, sizeof(man->meta)); |
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man->first = mandoc_calloc(1, sizeof(*man->first)); |
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man->first->type = ROFFT_ROOT; |
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man->last = man->first; |
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man->last_es = NULL; |
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man->flags = 0; |
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man->macroset = MACROSET_NONE; |
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man->lastsec = man->lastnamed = SEC_NONE; |
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man->next = ROFF_NEXT_CHILD; |
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} |
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void |
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roff_man_reset(struct roff_man *man) |
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{ |
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roff_man_free1(man); |
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roff_man_alloc1(man); |
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} |
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void |
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roff_man_free(struct roff_man *man) |
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{ |
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roff_man_free1(man); |
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free(man); |
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} |
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struct roff_man * |
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roff_man_alloc(struct roff *roff, struct mparse *parse, |
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const char *defos, int quick) |
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{ |
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struct roff_man *man; |
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man = mandoc_calloc(1, sizeof(*man)); |
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man->parse = parse; |
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man->roff = roff; |
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man->defos = defos; |
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man->quick = quick; |
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roff_man_alloc1(man); |
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return(man); |
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} |
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/* --- syntax tree handling ----------------------------------------------- */ |
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struct roff_node * |
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roff_node_alloc(struct roff_man *man, int line, int pos, |
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enum roff_type type, int tok) |
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{ |
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struct roff_node *n; |
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n = mandoc_calloc(1, sizeof(*n)); |
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n->line = line; |
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n->pos = pos; |
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n->tok = tok; |
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n->type = type; |
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n->sec = man->lastsec; |
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if (man->flags & MDOC_SYNOPSIS) |
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n->flags |= MDOC_SYNPRETTY; |
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else |
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n->flags &= ~MDOC_SYNPRETTY; |
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if (man->flags & MDOC_NEWLINE) |
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n->flags |= MDOC_LINE; |
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man->flags &= ~MDOC_NEWLINE; |
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return(n); |
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} |
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void |
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roff_node_append(struct roff_man *man, struct roff_node *n) |
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{ |
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switch (man->next) { |
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case ROFF_NEXT_SIBLING: |
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man->last->next = n; |
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n->prev = man->last; |
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n->parent = man->last->parent; |
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break; |
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case ROFF_NEXT_CHILD: |
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man->last->child = n; |
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n->parent = man->last; |
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break; |
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default: |
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abort(); |
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/* NOTREACHED */ |
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} |
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n->parent->nchild++; |
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n->parent->last = n; |
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/* |
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* Copy over the normalised-data pointer of our parent. Not |
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* everybody has one, but copying a null pointer is fine. |
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*/ |
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switch (n->type) { |
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case ROFFT_BODY: |
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if (n->end != ENDBODY_NOT) |
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break; |
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/* FALLTHROUGH */ |
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case ROFFT_TAIL: |
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/* FALLTHROUGH */ |
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case ROFFT_HEAD: |
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n->norm = n->parent->norm; |
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break; |
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default: |
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break; |
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} |
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if (man->macroset == MACROSET_MDOC) |
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mdoc_valid_pre(man, n); |
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switch (n->type) { |
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case ROFFT_HEAD: |
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assert(n->parent->type == ROFFT_BLOCK); |
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n->parent->head = n; |
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break; |
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case ROFFT_BODY: |
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if (n->end) |
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break; |
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assert(n->parent->type == ROFFT_BLOCK); |
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n->parent->body = n; |
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break; |
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case ROFFT_TAIL: |
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assert(n->parent->type == ROFFT_BLOCK); |
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n->parent->tail = n; |
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break; |
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default: |
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break; |
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} |
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man->last = n; |
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} |
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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 * |
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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 * |
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roff_head_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_HEAD, 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 * |
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roff_body_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_BODY, 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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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 |
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roff_node_unlink(struct roff_man *man, struct roff_node *n) |
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{ |
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/* Adjust siblings. */ |
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if (n->prev) |
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n->prev->next = n->next; |
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if (n->next) |
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n->next->prev = n->prev; |
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/* Adjust parent. */ |
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if (n->parent != NULL) { |
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n->parent->nchild--; |
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if (n->parent->child == n) |
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n->parent->child = n->next; |
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if (n->parent->last == n) |
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n->parent->last = n->prev; |
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} |
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/* Adjust parse point. */ |
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if (man == NULL) |
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return; |
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if (man->last == n) { |
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if (n->prev == NULL) { |
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man->last = n->parent; |
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man->next = ROFF_NEXT_CHILD; |
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} else { |
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man->last = n->prev; |
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man->next = ROFF_NEXT_SIBLING; |
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} |
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} |
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if (man->first == n) |
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man->first = NULL; |
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} |
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void |
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roff_node_free(struct roff_node *n) |
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{ |
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if (n->args != NULL) |
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mdoc_argv_free(n->args); |
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if (n->type == ROFFT_BLOCK || n->type == ROFFT_ELEM) |
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free(n->norm); |
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free(n->string); |
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free(n); |
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} |
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void |
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roff_node_delete(struct roff_man *man, struct roff_node *n) |
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{ |
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while (n->child != NULL) |
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roff_node_delete(man, n->child); |
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assert(n->nchild == 0); |
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roff_node_unlink(man, n); |
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roff_node_free(n); |
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} |
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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 ---------------------------------- */ |
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/* |
/* |
* In the current line, expand escape sequences that tend to get |
* In the current line, expand escape sequences that tend to get |
* used in numerical expressions and conditional requests. |
* used in numerical expressions and conditional requests. |
Line 1049 roff_res(struct roff *r, struct buf *buf, int ln, int |
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Line 1434 roff_res(struct roff *r, struct buf *buf, int ln, int |
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case 'B': |
case 'B': |
npos = 0; |
npos = 0; |
ubuf[0] = arg_complete && |
ubuf[0] = arg_complete && |
roff_evalnum(r, ln, stnam, &npos, NULL, 0) && |
roff_evalnum(r, ln, stnam, &npos, |
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NULL, ROFFNUM_SCALE) && |
stnam + npos + 1 == cp ? '1' : '0'; |
stnam + npos + 1 == cp ? '1' : '0'; |
ubuf[1] = '\0'; |
ubuf[1] = '\0'; |
break; |
break; |
Line 1123 roff_parsetext(struct buf *buf, int pos, int *offs) |
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Line 1509 roff_parsetext(struct buf *buf, int pos, int *offs) |
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esc = mandoc_escape((const char **)&p, NULL, NULL); |
esc = mandoc_escape((const char **)&p, NULL, NULL); |
if (esc == ESCAPE_ERROR) |
if (esc == ESCAPE_ERROR) |
break; |
break; |
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while (*p == '-') |
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p++; |
continue; |
continue; |
} else if (p == start) { |
} else if (p == start) { |
p++; |
p++; |
Line 1201 roff_parseln(struct roff *r, int ln, struct buf *buf, |
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Line 1589 roff_parseln(struct roff *r, int ln, struct buf *buf, |
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if (r->eqn != NULL) |
if (r->eqn != NULL) |
return(eqn_read(&r->eqn, ln, buf->buf, ppos, offs)); |
return(eqn_read(&r->eqn, ln, buf->buf, ppos, offs)); |
if (r->tbl != NULL && ( ! ctl || buf->buf[pos] == '\0')) |
if (r->tbl != NULL && ( ! ctl || buf->buf[pos] == '\0')) |
return(tbl_read(r->tbl, ln, buf->buf, pos)); |
return(tbl_read(r->tbl, ln, buf->buf, ppos)); |
if ( ! ctl) |
if ( ! ctl) |
return(roff_parsetext(buf, pos, offs)); |
return(roff_parsetext(buf, pos, offs)); |
|
|
Line 1236 roff_parseln(struct roff *r, int ln, struct buf *buf, |
|
Line 1624 roff_parseln(struct roff *r, int ln, struct buf *buf, |
|
if (r->tbl != NULL && (t == ROFF_MAX || t == ROFF_TS)) { |
if (r->tbl != NULL && (t == ROFF_MAX || t == ROFF_TS)) { |
mandoc_msg(MANDOCERR_TBLMACRO, r->parse, |
mandoc_msg(MANDOCERR_TBLMACRO, r->parse, |
ln, pos, buf->buf + spos); |
ln, pos, buf->buf + spos); |
return(ROFF_IGN); |
if (t == ROFF_TS) |
|
return(ROFF_IGN); |
|
while (buf->buf[pos] != '\0' && buf->buf[pos] != ' ') |
|
pos++; |
|
while (buf->buf[pos] != '\0' && buf->buf[pos] == ' ') |
|
pos++; |
|
return(tbl_read(r->tbl, ln, buf->buf, pos)); |
} |
} |
|
|
/* |
/* |
Line 1304 roff_parse(struct roff *r, char *buf, int *pos, int ln |
|
Line 1698 roff_parse(struct roff *r, char *buf, int *pos, int ln |
|
return(t); |
return(t); |
} |
} |
|
|
|
/* --- handling of request blocks ----------------------------------------- */ |
|
|
static enum rofferr |
static enum rofferr |
roff_cblock(ROFF_ARGS) |
roff_cblock(ROFF_ARGS) |
{ |
{ |
Line 1614 roff_cond_text(ROFF_ARGS) |
|
Line 2010 roff_cond_text(ROFF_ARGS) |
|
return(rr ? ROFF_CONT : ROFF_IGN); |
return(rr ? ROFF_CONT : ROFF_IGN); |
} |
} |
|
|
|
/* --- handling of numeric and conditional expressions -------------------- */ |
|
|
/* |
/* |
* Parse a single signed integer number. Stop at the first non-digit. |
* Parse a single signed integer number. Stop at the first non-digit. |
* If there is at least one digit, return success and advance the |
* If there is at least one digit, return success and advance the |
Line 1621 roff_cond_text(ROFF_ARGS) |
|
Line 2019 roff_cond_text(ROFF_ARGS) |
|
* Ignore overflows, treat them just like the C language. |
* Ignore overflows, treat them just like the C language. |
*/ |
*/ |
static int |
static int |
roff_getnum(const char *v, int *pos, int *res) |
roff_getnum(const char *v, int *pos, int *res, int flags) |
{ |
{ |
int myres, n, p; |
int myres, scaled, n, p; |
|
|
if (NULL == res) |
if (NULL == res) |
res = &myres; |
res = &myres; |
|
|
p = *pos; |
p = *pos; |
n = v[p] == '-'; |
n = v[p] == '-'; |
if (n) |
if (n || v[p] == '+') |
p++; |
p++; |
|
|
|
if (flags & ROFFNUM_WHITE) |
|
while (isspace((unsigned char)v[p])) |
|
p++; |
|
|
for (*res = 0; isdigit((unsigned char)v[p]); p++) |
for (*res = 0; isdigit((unsigned char)v[p]); p++) |
*res = 10 * *res + v[p] - '0'; |
*res = 10 * *res + v[p] - '0'; |
if (p == *pos + n) |
if (p == *pos + n) |
Line 1645 roff_getnum(const char *v, int *pos, int *res) |
|
Line 2047 roff_getnum(const char *v, int *pos, int *res) |
|
|
|
switch (v[p]) { |
switch (v[p]) { |
case 'f': |
case 'f': |
*res *= 65536; |
scaled = *res * 65536; |
break; |
break; |
case 'i': |
case 'i': |
*res *= 240; |
scaled = *res * 240; |
break; |
break; |
case 'c': |
case 'c': |
*res *= 240; |
scaled = *res * 240 / 2.54; |
*res /= 2.54; |
|
break; |
break; |
case 'v': |
case 'v': |
/* FALLTROUGH */ |
/* FALLTROUGH */ |
case 'P': |
case 'P': |
*res *= 40; |
scaled = *res * 40; |
break; |
break; |
case 'm': |
case 'm': |
/* FALLTROUGH */ |
/* FALLTROUGH */ |
case 'n': |
case 'n': |
*res *= 24; |
scaled = *res * 24; |
break; |
break; |
case 'p': |
case 'p': |
*res *= 10; |
scaled = *res * 10 / 3; |
*res /= 3; |
|
break; |
break; |
case 'u': |
case 'u': |
|
scaled = *res; |
break; |
break; |
case 'M': |
case 'M': |
*res *= 6; |
scaled = *res * 6 / 25; |
*res /= 25; |
|
break; |
break; |
default: |
default: |
|
scaled = *res; |
p--; |
p--; |
break; |
break; |
} |
} |
|
if (flags & ROFFNUM_SCALE) |
|
*res = scaled; |
|
|
*pos = p + 1; |
*pos = p + 1; |
return(1); |
return(1); |
Line 1767 roff_evalcond(struct roff *r, int ln, const char *v, i |
|
Line 2170 roff_evalcond(struct roff *r, int ln, const char *v, i |
|
} |
} |
|
|
savepos = *pos; |
savepos = *pos; |
if (roff_evalnum(r, ln, v, pos, &number, 0)) |
if (roff_evalnum(r, ln, v, pos, &number, ROFFNUM_SCALE)) |
return((number > 0) == wanttrue); |
return((number > 0) == wanttrue); |
else if (*pos == savepos) |
else if (*pos == savepos) |
return(roff_evalstrcond(v, pos) == wanttrue); |
return(roff_evalstrcond(v, pos) == wanttrue); |
Line 1990 roff_getop(const char *v, int *pos, char *res) |
|
Line 2393 roff_getop(const char *v, int *pos, char *res) |
|
*/ |
*/ |
static int |
static int |
roff_evalpar(struct roff *r, int ln, |
roff_evalpar(struct roff *r, int ln, |
const char *v, int *pos, int *res) |
const char *v, int *pos, int *res, int flags) |
{ |
{ |
|
|
if ('(' != v[*pos]) |
if ('(' != v[*pos]) |
return(roff_getnum(v, pos, res)); |
return(roff_getnum(v, pos, res, flags)); |
|
|
(*pos)++; |
(*pos)++; |
if ( ! roff_evalnum(r, ln, v, pos, res, 1)) |
if ( ! roff_evalnum(r, ln, v, pos, res, flags | ROFFNUM_WHITE)) |
return(0); |
return(0); |
|
|
/* |
/* |
Line 2020 roff_evalpar(struct roff *r, int ln, |
|
Line 2423 roff_evalpar(struct roff *r, int ln, |
|
*/ |
*/ |
static int |
static int |
roff_evalnum(struct roff *r, int ln, const char *v, |
roff_evalnum(struct roff *r, int ln, const char *v, |
int *pos, int *res, int skipwhite) |
int *pos, int *res, int flags) |
{ |
{ |
int mypos, operand2; |
int mypos, operand2; |
char operator; |
char operator; |
Line 2030 roff_evalnum(struct roff *r, int ln, const char *v, |
|
Line 2433 roff_evalnum(struct roff *r, int ln, const char *v, |
|
pos = &mypos; |
pos = &mypos; |
} |
} |
|
|
if (skipwhite) |
if (flags & ROFFNUM_WHITE) |
while (isspace((unsigned char)v[*pos])) |
while (isspace((unsigned char)v[*pos])) |
(*pos)++; |
(*pos)++; |
|
|
if ( ! roff_evalpar(r, ln, v, pos, res)) |
if ( ! roff_evalpar(r, ln, v, pos, res, flags)) |
return(0); |
return(0); |
|
|
while (1) { |
while (1) { |
if (skipwhite) |
if (flags & ROFFNUM_WHITE) |
while (isspace((unsigned char)v[*pos])) |
while (isspace((unsigned char)v[*pos])) |
(*pos)++; |
(*pos)++; |
|
|
if ( ! roff_getop(v, pos, &operator)) |
if ( ! roff_getop(v, pos, &operator)) |
break; |
break; |
|
|
if (skipwhite) |
if (flags & ROFFNUM_WHITE) |
while (isspace((unsigned char)v[*pos])) |
while (isspace((unsigned char)v[*pos])) |
(*pos)++; |
(*pos)++; |
|
|
if ( ! roff_evalpar(r, ln, v, pos, &operand2)) |
if ( ! roff_evalpar(r, ln, v, pos, &operand2, flags)) |
return(0); |
return(0); |
|
|
if (skipwhite) |
if (flags & ROFFNUM_WHITE) |
while (isspace((unsigned char)v[*pos])) |
while (isspace((unsigned char)v[*pos])) |
(*pos)++; |
(*pos)++; |
|
|
Line 2126 roff_evalnum(struct roff *r, int ln, const char *v, |
|
Line 2529 roff_evalnum(struct roff *r, int ln, const char *v, |
|
return(1); |
return(1); |
} |
} |
|
|
|
/* --- register management ------------------------------------------------ */ |
|
|
void |
void |
roff_setreg(struct roff *r, const char *name, int val, char sign) |
roff_setreg(struct roff *r, const char *name, int val, char sign) |
{ |
{ |
Line 2256 roff_nr(ROFF_ARGS) |
|
Line 2661 roff_nr(ROFF_ARGS) |
|
if (sign == '+' || sign == '-') |
if (sign == '+' || sign == '-') |
val++; |
val++; |
|
|
if (roff_evalnum(r, ln, val, NULL, &iv, 0)) |
if (roff_evalnum(r, ln, val, NULL, &iv, ROFFNUM_SCALE)) |
roff_setreg(r, key, iv, sign); |
roff_setreg(r, key, iv, sign); |
|
|
return(ROFF_IGN); |
return(ROFF_IGN); |
Line 2290 roff_rr(ROFF_ARGS) |
|
Line 2695 roff_rr(ROFF_ARGS) |
|
return(ROFF_IGN); |
return(ROFF_IGN); |
} |
} |
|
|
|
/* --- handler functions for roff requests -------------------------------- */ |
|
|
static enum rofferr |
static enum rofferr |
roff_rm(ROFF_ARGS) |
roff_rm(ROFF_ARGS) |
{ |
{ |
Line 2311 roff_rm(ROFF_ARGS) |
|
Line 2718 roff_rm(ROFF_ARGS) |
|
static enum rofferr |
static enum rofferr |
roff_it(ROFF_ARGS) |
roff_it(ROFF_ARGS) |
{ |
{ |
char *cp; |
|
size_t len; |
|
int iv; |
int iv; |
|
|
/* Parse the number of lines. */ |
/* Parse the number of lines. */ |
cp = buf->buf + pos; |
|
len = strcspn(cp, " \t"); |
if ( ! roff_evalnum(r, ln, buf->buf, &pos, &iv, 0)) { |
cp[len] = '\0'; |
|
if ((iv = mandoc_strntoi(cp, len, 10)) <= 0) { |
|
mandoc_msg(MANDOCERR_IT_NONUM, r->parse, |
mandoc_msg(MANDOCERR_IT_NONUM, r->parse, |
ln, ppos, buf->buf + 1); |
ln, ppos, buf->buf + 1); |
return(ROFF_IGN); |
return(ROFF_IGN); |
} |
} |
cp += len + 1; |
|
|
|
/* Arm the input line trap. */ |
while (isspace((unsigned char)buf->buf[pos])) |
|
pos++; |
|
|
|
/* |
|
* Arm the input line trap. |
|
* Special-casing "an-trap" is an ugly workaround to cope |
|
* with DocBook stupidly fiddling with man(7) internals. |
|
*/ |
|
|
roffit_lines = iv; |
roffit_lines = iv; |
roffit_macro = mandoc_strdup(cp); |
roffit_macro = mandoc_strdup(iv != 1 || |
|
strcmp(buf->buf + pos, "an-trap") ? |
|
buf->buf + pos : "br"); |
return(ROFF_IGN); |
return(ROFF_IGN); |
} |
} |
|
|
Line 2369 roff_TE(ROFF_ARGS) |
|
Line 2781 roff_TE(ROFF_ARGS) |
|
if (NULL == r->tbl) |
if (NULL == r->tbl) |
mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse, |
mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse, |
ln, ppos, "TE"); |
ln, ppos, "TE"); |
else |
else if ( ! tbl_end(&r->tbl)) { |
tbl_end(&r->tbl); |
free(buf->buf); |
|
buf->buf = mandoc_strdup(".sp"); |
|
buf->sz = 4; |
|
return(ROFF_REPARSE); |
|
} |
return(ROFF_IGN); |
return(ROFF_IGN); |
} |
} |
|
|
Line 2528 roff_cc(ROFF_ARGS) |
|
Line 2943 roff_cc(ROFF_ARGS) |
|
r->control = 0; |
r->control = 0; |
|
|
if (*p != '\0') |
if (*p != '\0') |
mandoc_msg(MANDOCERR_ARGCOUNT, r->parse, ln, ppos, NULL); |
mandoc_vmsg(MANDOCERR_ARG_EXCESS, r->parse, |
|
ln, p - buf->buf, "cc ... %s", p); |
|
|
return(ROFF_IGN); |
return(ROFF_IGN); |
} |
} |
Line 2543 roff_tr(ROFF_ARGS) |
|
Line 2959 roff_tr(ROFF_ARGS) |
|
p = buf->buf + pos; |
p = buf->buf + pos; |
|
|
if (*p == '\0') { |
if (*p == '\0') { |
mandoc_msg(MANDOCERR_ARGCOUNT, r->parse, ln, ppos, NULL); |
mandoc_msg(MANDOCERR_REQ_EMPTY, r->parse, ln, ppos, "tr"); |
return(ROFF_IGN); |
return(ROFF_IGN); |
} |
} |
|
|
Line 2571 roff_tr(ROFF_ARGS) |
|
Line 2987 roff_tr(ROFF_ARGS) |
|
} |
} |
ssz = (size_t)(p - second); |
ssz = (size_t)(p - second); |
} else if (*second == '\0') { |
} else if (*second == '\0') { |
mandoc_msg(MANDOCERR_ARGCOUNT, r->parse, |
mandoc_vmsg(MANDOCERR_TR_ODD, r->parse, |
ln, (int)(p - buf->buf), NULL); |
ln, first - buf->buf, "tr %s", first); |
second = " "; |
second = " "; |
p--; |
p--; |
} |
} |
Line 2625 roff_so(ROFF_ARGS) |
|
Line 3041 roff_so(ROFF_ARGS) |
|
return(ROFF_SO); |
return(ROFF_SO); |
} |
} |
|
|
|
/* --- user defined strings and macros ------------------------------------ */ |
|
|
static enum rofferr |
static enum rofferr |
roff_userdef(ROFF_ARGS) |
roff_userdef(ROFF_ARGS) |
{ |
{ |
const char *arg[9]; |
const char *arg[9], *ap; |
char *cp, *n1, *n2; |
char *cp, *n1, *n2; |
int i; |
int i; |
|
size_t asz, rsz; |
|
|
/* |
/* |
* Collect pointers to macro argument strings |
* Collect pointers to macro argument strings |
* and NUL-terminate them. |
* and NUL-terminate them. |
*/ |
*/ |
|
|
cp = buf->buf + pos; |
cp = buf->buf + pos; |
for (i = 0; i < 9; i++) |
for (i = 0; i < 9; i++) |
arg[i] = *cp == '\0' ? "" : |
arg[i] = *cp == '\0' ? "" : |
Line 2644 roff_userdef(ROFF_ARGS) |
|
Line 3064 roff_userdef(ROFF_ARGS) |
|
/* |
/* |
* Expand macro arguments. |
* Expand macro arguments. |
*/ |
*/ |
buf->sz = 0; |
|
n1 = cp = mandoc_strdup(r->current_string); |
buf->sz = strlen(r->current_string) + 1; |
while ((cp = strstr(cp, "\\$")) != NULL) { |
n1 = cp = mandoc_malloc(buf->sz); |
i = cp[2] - '1'; |
memcpy(n1, r->current_string, buf->sz); |
if (0 > i || 8 < i) { |
while (*cp != '\0') { |
/* Not an argument invocation. */ |
|
cp += 2; |
/* Scan ahead for the next argument invocation. */ |
|
|
|
if (*cp++ != '\\') |
continue; |
continue; |
|
if (*cp++ != '$') |
|
continue; |
|
i = *cp - '1'; |
|
if (0 > i || 8 < i) |
|
continue; |
|
cp -= 2; |
|
|
|
/* |
|
* Determine the size of the expanded argument, |
|
* taking escaping of quotes into account. |
|
*/ |
|
|
|
asz = 0; |
|
for (ap = arg[i]; *ap != '\0'; ap++) { |
|
asz++; |
|
if (*ap == '"') |
|
asz += 3; |
} |
} |
*cp = '\0'; |
if (asz != 3) { |
buf->sz = mandoc_asprintf(&n2, "%s%s%s", |
|
n1, arg[i], cp + 3) + 1; |
/* |
cp = n2 + (cp - n1); |
* Determine the size of the rest of the |
free(n1); |
* unexpanded macro, including the NUL. |
n1 = n2; |
*/ |
|
|
|
rsz = buf->sz - (cp - n1) - 3; |
|
|
|
/* |
|
* When shrinking, move before |
|
* releasing the storage. |
|
*/ |
|
|
|
if (asz < 3) |
|
memmove(cp + asz, cp + 3, rsz); |
|
|
|
/* |
|
* Resize the storage for the macro |
|
* and readjust the parse pointer. |
|
*/ |
|
|
|
buf->sz += asz - 3; |
|
n2 = mandoc_realloc(n1, buf->sz); |
|
cp = n2 + (cp - n1); |
|
n1 = n2; |
|
|
|
/* |
|
* When growing, make room |
|
* for the expanded argument. |
|
*/ |
|
|
|
if (asz > 3) |
|
memmove(cp + asz, cp + 3, rsz); |
|
} |
|
|
|
/* Copy the expanded argument, escaping quotes. */ |
|
|
|
n2 = cp; |
|
for (ap = arg[i]; *ap != '\0'; ap++) { |
|
if (*ap == '"') { |
|
memcpy(n2, "\\(dq", 4); |
|
n2 += 4; |
|
} else |
|
*n2++ = *ap; |
|
} |
} |
} |
|
|
/* |
/* |
* Replace the macro invocation |
* Replace the macro invocation |
* by the expanded macro. |
* by the expanded macro. |
*/ |
*/ |
|
|
free(buf->buf); |
free(buf->buf); |
buf->buf = n1; |
buf->buf = n1; |
if (buf->sz == 0) |
|
buf->sz = strlen(buf->buf) + 1; |
|
*offs = 0; |
*offs = 0; |
|
|
return(buf->sz > 1 && buf->buf[buf->sz - 2] == '\n' ? |
return(buf->sz > 1 && buf->buf[buf->sz - 2] == '\n' ? |
Line 2832 roff_freestr(struct roffkv *r) |
|
Line 3310 roff_freestr(struct roffkv *r) |
|
free(n); |
free(n); |
} |
} |
} |
} |
|
|
|
/* --- accessors and utility functions ------------------------------------ */ |
|
|
const struct tbl_span * |
const struct tbl_span * |
roff_span(const struct roff *r) |
roff_span(const struct roff *r) |