version 1.96, 2014/08/10 23:54:41 |
version 1.102, 2015/04/02 22:48:17 |
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/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> |
* Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> |
* Copyright (c) 2012 Ingo Schwarze <schwarze@openbsd.org> |
* Copyright (c) 2012, 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 above |
* purpose with or without fee is hereby granted, provided that the above |
* copyright notice and this permission notice appear in all copies. |
* copyright notice and this permission notice appear in all copies. |
* |
* |
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES |
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR |
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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#include <stdio.h> |
#include <stdio.h> |
#include <string.h> |
#include <string.h> |
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#include "mdoc.h" |
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#include "mandoc.h" |
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#include "mandoc_aux.h" |
#include "mandoc_aux.h" |
#include "libmdoc.h" |
#include "mandoc.h" |
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#include "roff.h" |
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#include "mdoc.h" |
#include "libmandoc.h" |
#include "libmandoc.h" |
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#include "libmdoc.h" |
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#define MULTI_STEP 5 /* pre-allocate argument values */ |
#define MULTI_STEP 5 /* pre-allocate argument values */ |
#define DELIMSZ 6 /* max possible size of a delimiter */ |
#define DELIMSZ 6 /* max possible size of a delimiter */ |
Line 54 static void argn_free(struct mdoc_arg *, int); |
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Line 55 static void argn_free(struct mdoc_arg *, int); |
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static enum margserr args(struct mdoc *, int, int *, |
static enum margserr args(struct mdoc *, int, int *, |
char *, enum argsflag, char **); |
char *, enum argsflag, char **); |
static int args_checkpunct(const char *, int); |
static int args_checkpunct(const char *, int); |
static int argv_multi(struct mdoc *, int, |
static void argv_multi(struct mdoc *, int, |
struct mdoc_argv *, int *, char *); |
struct mdoc_argv *, int *, char *); |
static int argv_single(struct mdoc *, int, |
static void argv_single(struct mdoc *, int, |
struct mdoc_argv *, int *, char *); |
struct mdoc_argv *, int *, char *); |
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static const enum argvflag argvflags[MDOC_ARG_MAX] = { |
static const enum argvflag argvflags[MDOC_ARG_MAX] = { |
Line 270 static const struct mdocarg mdocargs[MDOC_MAX] = { |
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Line 271 static const struct mdocarg mdocargs[MDOC_MAX] = { |
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/* |
/* |
* Parse an argument from line text. This comes in the form of -key |
* Parse flags and their arguments from the input line. |
* [value0...], which may either have a single mandatory value, at least |
* These come in the form -flag [argument ...]. |
* one mandatory value, an optional single value, or no value. |
* Some flags take no argument, some one, some multiple. |
*/ |
*/ |
enum margverr |
void |
mdoc_argv(struct mdoc *mdoc, int line, enum mdoct tok, |
mdoc_argv(struct mdoc *mdoc, int line, int tok, |
struct mdoc_arg **v, int *pos, char *buf) |
struct mdoc_arg **reta, int *pos, char *buf) |
{ |
{ |
char *p, sv; |
struct mdoc_argv tmpv; |
struct mdoc_argv tmp; |
struct mdoc_argv **retv; |
struct mdoc_arg *arg; |
const enum mdocargt *argtable; |
const enum mdocargt *ap; |
char *argname; |
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int ipos, retc; |
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char savechar; |
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if ('\0' == buf[*pos]) |
*reta = NULL; |
return(ARGV_EOLN); |
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else if (NULL == (ap = mdocargs[tok].argvs)) |
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return(ARGV_WORD); |
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else if ('-' != buf[*pos]) |
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return(ARGV_WORD); |
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/* Seek to the first unescaped space. */ |
/* Which flags does this macro support? */ |
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p = &buf[++(*pos)]; |
argtable = mdocargs[tok].argvs; |
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if (argtable == NULL) |
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return; |
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assert(*pos > 0); |
/* Loop over the flags on the input line. */ |
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for ( ; buf[*pos] ; (*pos)++) |
ipos = *pos; |
if (' ' == buf[*pos] && '\\' != buf[*pos - 1]) |
while (buf[ipos] == '-') { |
break; |
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/* |
/* Seek to the first unescaped space. */ |
* We want to nil-terminate the word to look it up (it's easier |
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* that way). But we may not have a flag, in which case we need |
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* to restore the line as-is. So keep around the stray byte, |
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* which we'll reset upon exiting (if necessary). |
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*/ |
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if ('\0' != (sv = buf[*pos])) |
for (argname = buf + ++ipos; buf[ipos] != '\0'; ipos++) |
buf[(*pos)++] = '\0'; |
if (buf[ipos] == ' ' && buf[ipos - 1] != '\\') |
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break; |
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/* |
/* |
* Now look up the word as a flag. Use temporary storage that |
* We want to nil-terminate the word to look it up. |
* we'll copy into the node's flags, if necessary. |
* But we may not have a flag, in which case we need |
*/ |
* to restore the line as-is. So keep around the |
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* stray byte, which we'll reset upon exiting. |
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*/ |
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memset(&tmp, 0, sizeof(struct mdoc_argv)); |
if ((savechar = buf[ipos]) != '\0') |
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buf[ipos++] = '\0'; |
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tmp.line = line; |
/* |
tmp.pos = *pos; |
* Now look up the word as a flag. Use temporary |
tmp.arg = MDOC_ARG_MAX; |
* storage that we'll copy into the node's flags. |
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*/ |
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while (MDOC_ARG_MAX != (tmp.arg = *ap++)) |
while ((tmpv.arg = *argtable++) != MDOC_ARG_MAX) |
if (0 == strcmp(p, mdoc_argnames[tmp.arg])) |
if ( ! strcmp(argname, mdoc_argnames[tmpv.arg])) |
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break; |
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/* If it isn't a flag, restore the saved byte. */ |
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if (tmpv.arg == MDOC_ARG_MAX) { |
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if (savechar != '\0') |
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buf[ipos - 1] = savechar; |
break; |
break; |
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} |
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if (MDOC_ARG_MAX == tmp.arg) { |
/* Read to the next word (the first argument). */ |
/* |
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* The flag was not found. |
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* Restore saved zeroed byte and return as a word. |
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*/ |
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if (sv) |
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buf[*pos - 1] = sv; |
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return(ARGV_WORD); |
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} |
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/* Read to the next word (the argument). */ |
while (buf[ipos] == ' ') |
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ipos++; |
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while (buf[*pos] && ' ' == buf[*pos]) |
/* Parse the arguments of the flag. */ |
(*pos)++; |
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switch (argvflags[tmp.arg]) { |
tmpv.line = line; |
case ARGV_SINGLE: |
tmpv.pos = *pos; |
if ( ! argv_single(mdoc, line, &tmp, pos, buf)) |
tmpv.sz = 0; |
return(ARGV_ERROR); |
tmpv.value = NULL; |
break; |
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case ARGV_MULTI: |
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if ( ! argv_multi(mdoc, line, &tmp, pos, buf)) |
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return(ARGV_ERROR); |
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break; |
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case ARGV_NONE: |
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break; |
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} |
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if (NULL == (arg = *v)) |
switch (argvflags[tmpv.arg]) { |
arg = *v = mandoc_calloc(1, sizeof(struct mdoc_arg)); |
case ARGV_SINGLE: |
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argv_single(mdoc, line, &tmpv, &ipos, buf); |
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break; |
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case ARGV_MULTI: |
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argv_multi(mdoc, line, &tmpv, &ipos, buf); |
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break; |
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case ARGV_NONE: |
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break; |
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} |
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arg->argc++; |
/* Append to the return values. */ |
arg->argv = mandoc_reallocarray(arg->argv, |
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arg->argc, sizeof(struct mdoc_argv)); |
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memcpy(&arg->argv[(int)arg->argc - 1], &tmp, |
if (*reta == NULL) |
sizeof(struct mdoc_argv)); |
*reta = mandoc_calloc(1, sizeof(**reta)); |
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return(ARGV_ARG); |
retc = ++(*reta)->argc; |
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retv = &(*reta)->argv; |
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*retv = mandoc_reallocarray(*retv, retc, sizeof(**retv)); |
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memcpy(*retv + retc - 1, &tmpv, sizeof(**retv)); |
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/* Prepare for parsing the next flag. */ |
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*pos = ipos; |
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argtable = mdocargs[tok].argvs; |
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} |
} |
} |
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void |
void |
Line 407 argn_free(struct mdoc_arg *p, int iarg) |
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Line 413 argn_free(struct mdoc_arg *p, int iarg) |
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} |
} |
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enum margserr |
enum margserr |
mdoc_zargs(struct mdoc *mdoc, int line, int *pos, char *buf, char **v) |
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{ |
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return(args(mdoc, line, pos, buf, ARGSFL_NONE, v)); |
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} |
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enum margserr |
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mdoc_args(struct mdoc *mdoc, int line, int *pos, |
mdoc_args(struct mdoc *mdoc, int line, int *pos, |
char *buf, enum mdoct tok, char **v) |
char *buf, int tok, char **v) |
{ |
{ |
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struct roff_node *n; |
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char *v_local; |
enum argsflag fl; |
enum argsflag fl; |
struct mdoc_node *n; |
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fl = mdocargs[tok].flags; |
if (v == NULL) |
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v = &v_local; |
if (MDOC_It != tok) |
fl = tok == MDOC_MAX ? ARGSFL_NONE : mdocargs[tok].flags; |
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if (tok != MDOC_It) |
return(args(mdoc, line, pos, buf, fl, v)); |
return(args(mdoc, line, pos, buf, fl, v)); |
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/* |
/* |
Line 652 args_checkpunct(const char *buf, int i) |
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Line 653 args_checkpunct(const char *buf, int i) |
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return('\0' == buf[i]); |
return('\0' == buf[i]); |
} |
} |
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static int |
static void |
argv_multi(struct mdoc *mdoc, int line, |
argv_multi(struct mdoc *mdoc, int line, |
struct mdoc_argv *v, int *pos, char *buf) |
struct mdoc_argv *v, int *pos, char *buf) |
{ |
{ |
Line 660 argv_multi(struct mdoc *mdoc, int line, |
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Line 661 argv_multi(struct mdoc *mdoc, int line, |
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char *p; |
char *p; |
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for (v->sz = 0; ; v->sz++) { |
for (v->sz = 0; ; v->sz++) { |
if ('-' == buf[*pos]) |
if (buf[*pos] == '-') |
break; |
break; |
ac = args(mdoc, line, pos, buf, ARGSFL_NONE, &p); |
ac = args(mdoc, line, pos, buf, ARGSFL_NONE, &p); |
if (ARGS_ERROR == ac) |
if (ac == ARGS_EOLN) |
return(0); |
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else if (ARGS_EOLN == ac) |
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break; |
break; |
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if (0 == v->sz % MULTI_STEP) |
if (v->sz % MULTI_STEP == 0) |
v->value = mandoc_reallocarray(v->value, |
v->value = mandoc_reallocarray(v->value, |
v->sz + MULTI_STEP, sizeof(char *)); |
v->sz + MULTI_STEP, sizeof(char *)); |
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v->value[(int)v->sz] = mandoc_strdup(p); |
v->value[(int)v->sz] = mandoc_strdup(p); |
} |
} |
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return(1); |
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} |
} |
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static int |
static void |
argv_single(struct mdoc *mdoc, int line, |
argv_single(struct mdoc *mdoc, int line, |
struct mdoc_argv *v, int *pos, char *buf) |
struct mdoc_argv *v, int *pos, char *buf) |
{ |
{ |
Line 686 argv_single(struct mdoc *mdoc, int line, |
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Line 683 argv_single(struct mdoc *mdoc, int line, |
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char *p; |
char *p; |
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ac = args(mdoc, line, pos, buf, ARGSFL_NONE, &p); |
ac = args(mdoc, line, pos, buf, ARGSFL_NONE, &p); |
if (ARGS_ERROR == ac) |
if (ac == ARGS_EOLN) |
return(0); |
return; |
if (ARGS_EOLN == ac) |
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return(1); |
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v->sz = 1; |
v->sz = 1; |
v->value = mandoc_malloc(sizeof(char *)); |
v->value = mandoc_malloc(sizeof(char *)); |
v->value[0] = mandoc_strdup(p); |
v->value[0] = mandoc_strdup(p); |
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return(1); |
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} |
} |