version 1.88, 2009/07/06 13:04:52 |
version 1.253, 2015/10/06 18:32:19 |
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/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se> |
* Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> |
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* Copyright (c) 2010, 2012-2015 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 |
* 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 |
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
*/ |
*/ |
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#include "config.h" |
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#include <sys/types.h> |
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#include <assert.h> |
#include <assert.h> |
#include <ctype.h> |
#include <ctype.h> |
#include <stdarg.h> |
#include <stdarg.h> |
#include <stdio.h> |
#include <stdio.h> |
#include <stdlib.h> |
#include <stdlib.h> |
#include <string.h> |
#include <string.h> |
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#include <time.h> |
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#include "mandoc_aux.h" |
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#include "mandoc.h" |
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#include "roff.h" |
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#include "mdoc.h" |
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#include "libmandoc.h" |
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#include "roff_int.h" |
#include "libmdoc.h" |
#include "libmdoc.h" |
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const char *const __mdoc_macronames[MDOC_MAX] = { |
const char *const __mdoc_macronames[MDOC_MAX + 1] = { |
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"text", |
"Ap", "Dd", "Dt", "Os", |
"Ap", "Dd", "Dt", "Os", |
"Sh", "Ss", "Pp", "D1", |
"Sh", "Ss", "Pp", "D1", |
"Dl", "Bd", "Ed", "Bl", |
"Dl", "Bd", "Ed", "Bl", |
Line 34 const char *const __mdoc_macronames[MDOC_MAX] = { |
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Line 47 const char *const __mdoc_macronames[MDOC_MAX] = { |
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"Ic", "In", "Li", "Nd", |
"Ic", "In", "Li", "Nd", |
"Nm", "Op", "Ot", "Pa", |
"Nm", "Op", "Ot", "Pa", |
"Rv", "St", "Va", "Vt", |
"Rv", "St", "Va", "Vt", |
/* LINTED */ |
"Xr", "%A", "%B", "%D", |
"Xr", "\%A", "\%B", "\%D", |
"%I", "%J", "%N", "%O", |
/* LINTED */ |
"%P", "%R", "%T", "%V", |
"\%I", "\%J", "\%N", "\%O", |
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/* LINTED */ |
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"\%P", "\%R", "\%T", "\%V", |
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"Ac", "Ao", "Aq", "At", |
"Ac", "Ao", "Aq", "At", |
"Bc", "Bf", "Bo", "Bq", |
"Bc", "Bf", "Bo", "Bq", |
"Bsx", "Bx", "Db", "Dc", |
"Bsx", "Bx", "Db", "Dc", |
Line 55 const char *const __mdoc_macronames[MDOC_MAX] = { |
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Line 65 const char *const __mdoc_macronames[MDOC_MAX] = { |
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"Bk", "Ek", "Bt", "Hf", |
"Bk", "Ek", "Bt", "Hf", |
"Fr", "Ud", "Lb", "Lp", |
"Fr", "Ud", "Lb", "Lp", |
"Lk", "Mt", "Brq", "Bro", |
"Lk", "Mt", "Brq", "Bro", |
/* LINTED */ |
"Brc", "%C", "Es", "En", |
"Brc", "\%C", "Es", "En", |
"Dx", "%Q", "br", "sp", |
/* LINTED */ |
"%U", "Ta", "ll", |
"Dx", "\%Q" |
}; |
}; |
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const char *const __mdoc_argnames[MDOC_ARG_MAX] = { |
const char *const __mdoc_argnames[MDOC_ARG_MAX] = { |
"split", "nosplit", "ragged", |
"split", "nosplit", "ragged", |
"unfilled", "literal", "file", |
"unfilled", "literal", "file", |
"offset", "bullet", "dash", |
"offset", "bullet", "dash", |
"hyphen", "item", "enum", |
"hyphen", "item", "enum", |
"tag", "diag", "hang", |
"tag", "diag", "hang", |
"ohang", "inset", "column", |
"ohang", "inset", "column", |
"width", "compact", "std", |
"width", "compact", "std", |
"filled", "words", "emphasis", |
"filled", "words", "emphasis", |
"symbolic", "nested" |
"symbolic", "nested", "centered" |
}; |
}; |
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const char * const *mdoc_macronames = __mdoc_macronames; |
const char * const *mdoc_macronames = __mdoc_macronames + 1; |
const char * const *mdoc_argnames = __mdoc_argnames; |
const char * const *mdoc_argnames = __mdoc_argnames; |
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static void mdoc_free1(struct mdoc *); |
static int mdoc_ptext(struct roff_man *, int, char *, int); |
static int mdoc_alloc1(struct mdoc *); |
static int mdoc_pmacro(struct roff_man *, int, char *, int); |
static struct mdoc_node *node_alloc(struct mdoc *, int, int, |
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int, enum mdoc_type); |
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static int node_append(struct mdoc *, |
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struct mdoc_node *); |
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static int parsetext(struct mdoc *, int, char *); |
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static int parsemacro(struct mdoc *, int, char *); |
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static int macrowarn(struct mdoc *, int, const char *); |
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const struct mdoc_node * |
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mdoc_node(const struct mdoc *m) |
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{ |
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return(MDOC_HALT & m->flags ? NULL : m->first); |
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} |
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const struct mdoc_meta * |
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mdoc_meta(const struct mdoc *m) |
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{ |
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return(MDOC_HALT & m->flags ? NULL : &m->meta); |
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} |
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/* |
/* |
* Frees volatile resources (parse tree, meta-data, fields). |
* Main parse routine. Parses a single line -- really just hands off to |
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* the macro (mdoc_pmacro()) or text parser (mdoc_ptext()). |
*/ |
*/ |
static void |
int |
mdoc_free1(struct mdoc *mdoc) |
mdoc_parseln(struct roff_man *mdoc, int ln, char *buf, int offs) |
{ |
{ |
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if (mdoc->first) |
if (mdoc->last->type != ROFFT_EQN || ln > mdoc->last->line) |
mdoc_node_freelist(mdoc->first); |
mdoc->flags |= MDOC_NEWLINE; |
if (mdoc->meta.title) |
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free(mdoc->meta.title); |
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if (mdoc->meta.os) |
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free(mdoc->meta.os); |
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if (mdoc->meta.name) |
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free(mdoc->meta.name); |
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if (mdoc->meta.arch) |
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free(mdoc->meta.arch); |
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if (mdoc->meta.vol) |
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free(mdoc->meta.vol); |
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} |
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/* |
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* Let the roff nS register switch SYNOPSIS mode early, |
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* such that the parser knows at all times |
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* whether this mode is on or off. |
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* Note that this mode is also switched by the Sh macro. |
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*/ |
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if (roff_getreg(mdoc->roff, "nS")) |
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mdoc->flags |= MDOC_SYNOPSIS; |
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else |
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mdoc->flags &= ~MDOC_SYNOPSIS; |
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/* |
return roff_getcontrol(mdoc->roff, buf, &offs) ? |
* Allocate all volatile resources (parse tree, meta-data, fields). |
mdoc_pmacro(mdoc, ln, buf, offs) : |
*/ |
mdoc_ptext(mdoc, ln, buf, offs); |
static int |
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mdoc_alloc1(struct mdoc *mdoc) |
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{ |
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bzero(&mdoc->meta, sizeof(struct mdoc_meta)); |
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mdoc->flags = 0; |
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mdoc->lastnamed = mdoc->lastsec = SEC_NONE; |
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mdoc->last = calloc(1, sizeof(struct mdoc_node)); |
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if (NULL == mdoc->last) |
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return(0); |
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mdoc->first = mdoc->last; |
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mdoc->last->type = MDOC_ROOT; |
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mdoc->next = MDOC_NEXT_CHILD; |
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return(1); |
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} |
} |
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void |
/* |
mdoc_macro(MACRO_PROT_ARGS) |
* Free up volatile resources (see mdoc_free1()) then re-initialises the |
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* data with mdoc_alloc1(). After invocation, parse data has been reset |
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* and the parser is ready for re-invocation on a new tree; however, |
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* cross-parse non-volatile data is kept intact. |
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*/ |
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int |
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mdoc_reset(struct mdoc *mdoc) |
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{ |
{ |
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assert(tok > TOKEN_NONE && tok < MDOC_MAX); |
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mdoc_free1(mdoc); |
if (mdoc->flags & MDOC_PBODY) { |
return(mdoc_alloc1(mdoc)); |
if (tok == MDOC_Dt) { |
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mandoc_vmsg(MANDOCERR_DT_LATE, |
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mdoc->parse, line, ppos, |
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"Dt %s", buf + *pos); |
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return; |
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} |
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} else if ( ! (mdoc_macros[tok].flags & MDOC_PROLOGUE)) { |
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if (mdoc->meta.title == NULL) { |
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mandoc_vmsg(MANDOCERR_DT_NOTITLE, |
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mdoc->parse, line, ppos, "%s %s", |
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mdoc_macronames[tok], buf + *pos); |
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mdoc->meta.title = mandoc_strdup("UNTITLED"); |
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} |
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if (NULL == mdoc->meta.vol) |
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mdoc->meta.vol = mandoc_strdup("LOCAL"); |
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mdoc->flags |= MDOC_PBODY; |
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} |
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(*mdoc_macros[tok].fp)(mdoc, tok, line, ppos, pos, buf); |
} |
} |
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/* |
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* Completely free up all volatile and non-volatile parse resources. |
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* After invocation, the pointer is no longer usable. |
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*/ |
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void |
void |
mdoc_free(struct mdoc *mdoc) |
mdoc_tail_alloc(struct roff_man *mdoc, int line, int pos, int tok) |
{ |
{ |
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struct roff_node *p; |
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mdoc_free1(mdoc); |
p = roff_node_alloc(mdoc, line, pos, ROFFT_TAIL, tok); |
if (mdoc->htab) |
roff_node_append(mdoc, p); |
mdoc_hash_free(mdoc->htab); |
mdoc->next = ROFF_NEXT_CHILD; |
free(mdoc); |
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} |
} |
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struct roff_node * |
/* |
mdoc_endbody_alloc(struct roff_man *mdoc, int line, int pos, int tok, |
* Allocate volatile and non-volatile parse resources. |
struct roff_node *body, enum mdoc_endbody end) |
*/ |
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struct mdoc * |
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mdoc_alloc(void *data, int pflags, const struct mdoc_cb *cb) |
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{ |
{ |
struct mdoc *p; |
struct roff_node *p; |
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if (NULL == (p = calloc(1, sizeof(struct mdoc)))) |
body->flags |= MDOC_ENDED; |
return(NULL); |
body->parent->flags |= MDOC_ENDED; |
if (cb) |
p = roff_node_alloc(mdoc, line, pos, ROFFT_BODY, tok); |
(void)memcpy(&p->cb, cb, sizeof(struct mdoc_cb)); |
p->body = body; |
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p->norm = body->norm; |
p->data = data; |
p->end = end; |
p->pflags = pflags; |
roff_node_append(mdoc, p); |
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mdoc->next = ROFF_NEXT_SIBLING; |
if (NULL == (p->htab = mdoc_hash_alloc())) { |
return p; |
free(p); |
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return(NULL); |
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} else if (mdoc_alloc1(p)) |
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return(p); |
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free(p); |
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return(NULL); |
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} |
} |
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struct roff_node * |
/* |
mdoc_block_alloc(struct roff_man *mdoc, int line, int pos, |
* Climb back up the parse tree, validating open scopes. Mostly calls |
int tok, struct mdoc_arg *args) |
* through to macro_end() in macro.c. |
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*/ |
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int |
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mdoc_endparse(struct mdoc *m) |
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{ |
{ |
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struct roff_node *p; |
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if (MDOC_HALT & m->flags) |
p = roff_node_alloc(mdoc, line, pos, ROFFT_BLOCK, tok); |
return(0); |
p->args = args; |
else if (mdoc_macroend(m)) |
if (p->args) |
return(1); |
(args->refcnt)++; |
m->flags |= MDOC_HALT; |
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return(0); |
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} |
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switch (tok) { |
/* |
case MDOC_Bd: |
* Main parse routine. Parses a single line -- really just hands off to |
/* FALLTHROUGH */ |
* the macro (parsemacro()) or text parser (parsetext()). |
case MDOC_Bf: |
*/ |
/* FALLTHROUGH */ |
int |
case MDOC_Bl: |
mdoc_parseln(struct mdoc *m, int ln, char *buf) |
/* FALLTHROUGH */ |
{ |
case MDOC_En: |
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/* FALLTHROUGH */ |
if (MDOC_HALT & m->flags) |
case MDOC_Rs: |
return(0); |
p->norm = mandoc_calloc(1, sizeof(union mdoc_data)); |
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break; |
return('.' == *buf ? parsemacro(m, ln, buf) : |
default: |
parsetext(m, ln, buf)); |
break; |
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} |
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roff_node_append(mdoc, p); |
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mdoc->next = ROFF_NEXT_CHILD; |
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return p; |
} |
} |
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void |
int |
mdoc_elem_alloc(struct roff_man *mdoc, int line, int pos, |
mdoc_verr(struct mdoc *mdoc, int ln, int pos, |
int tok, struct mdoc_arg *args) |
const char *fmt, ...) |
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{ |
{ |
char buf[256]; |
struct roff_node *p; |
va_list ap; |
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if (NULL == mdoc->cb.mdoc_err) |
p = roff_node_alloc(mdoc, line, pos, ROFFT_ELEM, tok); |
return(0); |
p->args = args; |
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if (p->args) |
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(args->refcnt)++; |
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va_start(ap, fmt); |
switch (tok) { |
(void)vsnprintf(buf, sizeof(buf) - 1, fmt, ap); |
case MDOC_An: |
va_end(ap); |
p->norm = mandoc_calloc(1, sizeof(union mdoc_data)); |
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return((*mdoc->cb.mdoc_err)(mdoc->data, ln, pos, buf)); |
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} |
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int |
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mdoc_vwarn(struct mdoc *mdoc, int ln, int pos, const char *fmt, ...) |
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{ |
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char buf[256]; |
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va_list ap; |
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if (NULL == mdoc->cb.mdoc_warn) |
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return(0); |
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va_start(ap, fmt); |
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(void)vsnprintf(buf, sizeof(buf) - 1, fmt, ap); |
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va_end(ap); |
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return((*mdoc->cb.mdoc_warn)(mdoc->data, ln, pos, buf)); |
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} |
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int |
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mdoc_err(struct mdoc *m, int line, int pos, int iserr, enum merr type) |
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{ |
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char *p; |
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p = NULL; |
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switch (type) { |
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case (ENOCALL): |
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p = "not callable"; |
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break; |
break; |
case (EPROLBODY): |
default: |
p = "macro disallowed in document body"; |
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break; |
break; |
case (EBODYPROL): |
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p = "macro disallowed in document prologue"; |
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break; |
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case (EMALLOC): |
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p = "memory exhausted"; |
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break; |
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case (ETEXTPROL): |
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p = "text disallowed in document prologue"; |
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break; |
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case (ENOBLANK): |
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p = "blank lines disallowed in non-literal contexts"; |
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break; |
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case (ESPACE): |
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p = "whitespace disallowed after delimiter"; |
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break; |
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case (ETOOLONG): |
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p = "text argument too long"; |
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break; |
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case (EESCAPE): |
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p = "invalid escape sequence"; |
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break; |
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case (EPRINT): |
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p = "invalid character"; |
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break; |
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case (ENESTDISP): |
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p = "displays may not be nested"; |
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break; |
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case (EBOOL): |
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p = "expected boolean value"; |
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break; |
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case (EARGREP): |
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p = "argument repeated"; |
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break; |
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case (EMULTIDISP): |
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p = "multiple display types specified"; |
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break; |
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case (EMULTILIST): |
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p = "multiple list types specified"; |
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break; |
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case (ELISTTYPE): |
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p = "missing list type"; |
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break; |
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case (EDISPTYPE): |
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p = "missing display type"; |
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break; |
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case (ESECNAME): |
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p = "the NAME section must come first"; |
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break; |
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case (ELINE): |
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p = "expected line arguments"; |
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break; |
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case (ENOPROLOGUE): |
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p = "document has no prologue"; |
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break; |
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case (ENODAT): |
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p = "document has no data"; |
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break; |
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case (ECOLMIS): |
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p = "column syntax style mismatch"; |
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break; |
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case (EATT): |
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p = "expected valid AT&T symbol"; |
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break; |
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case (ENAME): |
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p = "default name not yet set"; |
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break; |
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case (ENOWIDTH): |
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p = "superfluous width argument"; |
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break; |
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case (EMISSWIDTH): |
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p = "missing width argument"; |
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break; |
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case (EWRONGMSEC): |
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p = "document section in wrong manual section"; |
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break; |
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case (ESECOOO): |
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p = "document section out of conventional order"; |
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break; |
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case (ESECREP): |
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p = "document section repeated"; |
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break; |
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case (EBADSTAND): |
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p = "unknown standard"; |
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break; |
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case (ENAMESECINC): |
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p = "NAME section contents incomplete/badly-ordered"; |
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break; |
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case (ENOMULTILINE): |
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p = "suggested no multi-line arguments"; |
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break; |
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case (EMULTILINE): |
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p = "suggested multi-line arguments"; |
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break; |
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case (ENOLINE): |
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p = "suggested no line arguments"; |
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break; |
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case (EPROLOOO): |
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p = "prologue macros out-of-order"; |
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break; |
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case (EPROLREP): |
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p = "prologue macros repeated"; |
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break; |
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case (EARGVAL): |
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p = "argument value suggested"; |
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break; |
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case (EFONT): |
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p = "invalid font mode"; |
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break; |
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case (EBADMSEC): |
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p = "inappropriate manual section"; |
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break; |
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case (EBADSEC): |
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p = "inappropriate document section"; |
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break; |
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case (EQUOTTERM): |
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p = "unterminated quoted parameter"; |
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break; |
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case (EQUOTPARM): |
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p = "unexpected quoted parameter"; |
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break; |
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case (EARGVPARM): |
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p = "argument-like parameter"; |
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break; |
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case (ECOLEMPTY): |
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p = "last list column is empty"; |
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break; |
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case (ETAILWS): |
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p = "trailing whitespace"; |
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break; |
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case (ENUMFMT): |
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p = "bad number format"; |
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break; |
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case (EUTSNAME): |
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p = "utsname"; |
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break; |
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case (EBADDATE): |
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p = "malformed date syntax"; |
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break; |
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case (EOPEN): |
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p = "explicit scope still open on exit"; |
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break; |
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case (EQUOT): |
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p = "unterminated quotation"; |
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break; |
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case (ENOCTX): |
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p = "closure has no prior context"; |
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break; |
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case (ENOPARMS): |
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p = "unexpect line arguments"; |
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break; |
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case (EIGNE): |
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p = "ignoring empty element"; |
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break; |
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case (EIMPBRK): |
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p = "crufty end-of-line scope violation"; |
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break; |
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case (EMACPARM): |
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p = "macro-like parameter"; |
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break; |
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case (EOBS): |
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p = "macro marked obsolete"; |
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break; |
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} |
} |
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roff_node_append(mdoc, p); |
assert(p); |
mdoc->next = ROFF_NEXT_CHILD; |
|
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if (iserr) |
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return(mdoc_verr(m, line, pos, p)); |
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|
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return(mdoc_vwarn(m, line, pos, p)); |
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} |
} |
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|
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void |
int |
mdoc_node_relink(struct roff_man *mdoc, struct roff_node *p) |
mdoc_macro(struct mdoc *m, int tok, |
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int ln, int pp, int *pos, char *buf) |
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{ |
{ |
|
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if (MDOC_PROLOGUE & mdoc_macros[tok].flags && |
roff_node_unlink(mdoc, p); |
MDOC_PBODY & m->flags) |
roff_node_append(mdoc, p); |
return(mdoc_perr(m, ln, pp, EPROLBODY)); |
|
if ( ! (MDOC_PROLOGUE & mdoc_macros[tok].flags) && |
|
! (MDOC_PBODY & m->flags)) |
|
return(mdoc_perr(m, ln, pp, EBODYPROL)); |
|
|
|
if (1 != pp && ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) |
|
return(mdoc_perr(m, ln, pp, ENOCALL)); |
|
|
|
return((*mdoc_macros[tok].fp)(m, tok, ln, pp, pos, buf)); |
|
} |
} |
|
|
|
/* |
|
* Parse free-form text, that is, a line that does not begin with the |
|
* control character. |
|
*/ |
static int |
static int |
node_append(struct mdoc *mdoc, struct mdoc_node *p) |
mdoc_ptext(struct roff_man *mdoc, int line, char *buf, int offs) |
{ |
{ |
|
struct roff_node *n; |
|
char *c, *ws, *end; |
|
|
assert(mdoc->last); |
assert(mdoc->last); |
assert(mdoc->first); |
n = mdoc->last; |
assert(MDOC_ROOT != p->type); |
|
|
|
switch (mdoc->next) { |
/* |
case (MDOC_NEXT_SIBLING): |
* Divert directly to list processing if we're encountering a |
mdoc->last->next = p; |
* columnar ROFFT_BLOCK with or without a prior ROFFT_BLOCK entry |
p->prev = mdoc->last; |
* (a ROFFT_BODY means it's already open, in which case we should |
p->parent = mdoc->last->parent; |
* process within its context in the normal way). |
break; |
*/ |
case (MDOC_NEXT_CHILD): |
|
mdoc->last->child = p; |
if (n->tok == MDOC_Bl && n->type == ROFFT_BODY && |
p->parent = mdoc->last; |
n->end == ENDBODY_NOT && n->norm->Bl.type == LIST_column) { |
break; |
/* `Bl' is open without any children. */ |
default: |
mdoc->flags |= MDOC_FREECOL; |
abort(); |
mdoc_macro(mdoc, MDOC_It, line, offs, &offs, buf); |
/* NOTREACHED */ |
return 1; |
} |
} |
|
|
p->parent->nchild++; |
if (n->tok == MDOC_It && n->type == ROFFT_BLOCK && |
|
NULL != n->parent && |
if ( ! mdoc_valid_pre(mdoc, p)) |
MDOC_Bl == n->parent->tok && |
return(0); |
LIST_column == n->parent->norm->Bl.type) { |
if ( ! mdoc_action_pre(mdoc, p)) |
/* `Bl' has block-level `It' children. */ |
return(0); |
mdoc->flags |= MDOC_FREECOL; |
|
mdoc_macro(mdoc, MDOC_It, line, offs, &offs, buf); |
switch (p->type) { |
return 1; |
case (MDOC_HEAD): |
|
assert(MDOC_BLOCK == p->parent->type); |
|
p->parent->head = p; |
|
break; |
|
case (MDOC_TAIL): |
|
assert(MDOC_BLOCK == p->parent->type); |
|
p->parent->tail = p; |
|
break; |
|
case (MDOC_BODY): |
|
assert(MDOC_BLOCK == p->parent->type); |
|
p->parent->body = p; |
|
break; |
|
default: |
|
break; |
|
} |
} |
|
|
mdoc->last = p; |
/* |
|
* Search for the beginning of unescaped trailing whitespace (ws) |
|
* and for the first character not to be output (end). |
|
*/ |
|
|
switch (p->type) { |
/* FIXME: replace with strcspn(). */ |
case (MDOC_TEXT): |
ws = NULL; |
if ( ! mdoc_valid_post(mdoc)) |
for (c = end = buf + offs; *c; c++) { |
return(0); |
switch (*c) { |
if ( ! mdoc_action_post(mdoc)) |
case ' ': |
return(0); |
if (NULL == ws) |
break; |
ws = c; |
default: |
continue; |
break; |
case '\t': |
|
/* |
|
* Always warn about trailing tabs, |
|
* even outside literal context, |
|
* where they should be put on the next line. |
|
*/ |
|
if (NULL == ws) |
|
ws = c; |
|
/* |
|
* Strip trailing tabs in literal context only; |
|
* outside, they affect the next line. |
|
*/ |
|
if (MDOC_LITERAL & mdoc->flags) |
|
continue; |
|
break; |
|
case '\\': |
|
/* Skip the escaped character, too, if any. */ |
|
if (c[1]) |
|
c++; |
|
/* FALLTHROUGH */ |
|
default: |
|
ws = NULL; |
|
break; |
|
} |
|
end = c + 1; |
} |
} |
|
*end = '\0'; |
|
|
return(1); |
if (ws) |
} |
mandoc_msg(MANDOCERR_SPACE_EOL, mdoc->parse, |
|
line, (int)(ws-buf), NULL); |
|
|
|
if (buf[offs] == '\0' && ! (mdoc->flags & MDOC_LITERAL)) { |
|
mandoc_msg(MANDOCERR_FI_BLANK, mdoc->parse, |
|
line, (int)(c - buf), NULL); |
|
|
static struct mdoc_node * |
/* |
node_alloc(struct mdoc *mdoc, int line, |
* Insert a `sp' in the case of a blank line. Technically, |
int pos, int tok, enum mdoc_type type) |
* blank lines aren't allowed, but enough manuals assume this |
{ |
* behaviour that we want to work around it. |
struct mdoc_node *p; |
*/ |
|
roff_elem_alloc(mdoc, line, offs, MDOC_sp); |
if (NULL == (p = calloc(1, sizeof(struct mdoc_node)))) { |
mdoc->next = ROFF_NEXT_SIBLING; |
(void)mdoc_nerr(mdoc, mdoc->last, EMALLOC); |
mdoc_valid_post(mdoc); |
return(NULL); |
return 1; |
} |
} |
|
|
p->sec = mdoc->lastsec; |
roff_word_alloc(mdoc, line, offs, buf+offs); |
p->line = line; |
|
p->pos = pos; |
|
p->tok = tok; |
|
if (MDOC_TEXT != (p->type = type)) |
|
assert(p->tok >= 0); |
|
|
|
return(p); |
if (mdoc->flags & MDOC_LITERAL) |
} |
return 1; |
|
|
|
/* |
|
* End-of-sentence check. If the last character is an unescaped |
|
* EOS character, then flag the node as being the end of a |
|
* sentence. The front-end will know how to interpret this. |
|
*/ |
|
|
int |
assert(buf < end); |
mdoc_tail_alloc(struct mdoc *mdoc, int line, int pos, int tok) |
|
{ |
|
struct mdoc_node *p; |
|
|
|
p = node_alloc(mdoc, line, pos, tok, MDOC_TAIL); |
if (mandoc_eos(buf+offs, (size_t)(end-buf-offs))) |
if (NULL == p) |
mdoc->last->flags |= MDOC_EOS; |
return(0); |
return 1; |
return(node_append(mdoc, p)); |
|
} |
} |
|
|
|
/* |
int |
* Parse a macro line, that is, a line beginning with the control |
mdoc_head_alloc(struct mdoc *mdoc, int line, int pos, int tok) |
* character. |
|
*/ |
|
static int |
|
mdoc_pmacro(struct roff_man *mdoc, int ln, char *buf, int offs) |
{ |
{ |
struct mdoc_node *p; |
struct roff_node *n; |
|
const char *cp; |
|
int tok; |
|
int i, sv; |
|
char mac[5]; |
|
|
assert(mdoc->first); |
sv = offs; |
assert(mdoc->last); |
|
|
|
p = node_alloc(mdoc, line, pos, tok, MDOC_HEAD); |
/* |
if (NULL == p) |
* Copy the first word into a nil-terminated buffer. |
return(0); |
* Stop when a space, tab, escape, or eoln is encountered. |
return(node_append(mdoc, p)); |
*/ |
} |
|
|
|
|
i = 0; |
|
while (i < 4 && strchr(" \t\\", buf[offs]) == NULL) |
|
mac[i++] = buf[offs++]; |
|
|
int |
mac[i] = '\0'; |
mdoc_body_alloc(struct mdoc *mdoc, int line, int pos, int tok) |
|
{ |
|
struct mdoc_node *p; |
|
|
|
p = node_alloc(mdoc, line, pos, tok, MDOC_BODY); |
tok = (i > 1 && i < 4) ? mdoc_hash_find(mac) : TOKEN_NONE; |
if (NULL == p) |
|
return(0); |
|
return(node_append(mdoc, p)); |
|
} |
|
|
|
|
if (tok == TOKEN_NONE) { |
|
mandoc_msg(MANDOCERR_MACRO, mdoc->parse, |
|
ln, sv, buf + sv - 1); |
|
return 1; |
|
} |
|
|
int |
/* Skip a leading escape sequence or tab. */ |
mdoc_block_alloc(struct mdoc *mdoc, int line, int pos, |
|
int tok, struct mdoc_arg *args) |
|
{ |
|
struct mdoc_node *p; |
|
|
|
p = node_alloc(mdoc, line, pos, tok, MDOC_BLOCK); |
switch (buf[offs]) { |
if (NULL == p) |
case '\\': |
return(0); |
cp = buf + offs + 1; |
p->args = args; |
mandoc_escape(&cp, NULL, NULL); |
if (p->args) |
offs = cp - buf; |
(args->refcnt)++; |
break; |
return(node_append(mdoc, p)); |
case '\t': |
} |
offs++; |
|
break; |
|
default: |
|
break; |
|
} |
|
|
|
/* Jump to the next non-whitespace word. */ |
|
|
int |
while (buf[offs] && ' ' == buf[offs]) |
mdoc_elem_alloc(struct mdoc *mdoc, int line, int pos, |
offs++; |
int tok, struct mdoc_arg *args) |
|
{ |
|
struct mdoc_node *p; |
|
|
|
p = node_alloc(mdoc, line, pos, tok, MDOC_ELEM); |
/* |
if (NULL == p) |
* Trailing whitespace. Note that tabs are allowed to be passed |
return(0); |
* into the parser as "text", so we only warn about spaces here. |
p->args = args; |
*/ |
if (p->args) |
|
(args->refcnt)++; |
|
return(node_append(mdoc, p)); |
|
} |
|
|
|
|
if ('\0' == buf[offs] && ' ' == buf[offs - 1]) |
|
mandoc_msg(MANDOCERR_SPACE_EOL, mdoc->parse, |
|
ln, offs - 1, NULL); |
|
|
int |
/* |
mdoc_word_alloc(struct mdoc *mdoc, |
* If an initial macro or a list invocation, divert directly |
int line, int pos, const char *word) |
* into macro processing. |
{ |
*/ |
struct mdoc_node *p; |
|
|
|
p = node_alloc(mdoc, line, pos, -1, MDOC_TEXT); |
if (NULL == mdoc->last || MDOC_It == tok || MDOC_El == tok) { |
if (NULL == p) |
mdoc_macro(mdoc, tok, ln, sv, &offs, buf); |
return(0); |
return 1; |
if (NULL == (p->string = strdup(word))) { |
|
(void)mdoc_nerr(mdoc, mdoc->last, EMALLOC); |
|
return(0); |
|
} |
} |
|
|
return(node_append(mdoc, p)); |
n = mdoc->last; |
} |
assert(mdoc->last); |
|
|
|
/* |
|
* If the first macro of a `Bl -column', open an `It' block |
|
* context around the parsed macro. |
|
*/ |
|
|
void |
if (n->tok == MDOC_Bl && n->type == ROFFT_BODY && |
mdoc_node_free(struct mdoc_node *p) |
n->end == ENDBODY_NOT && n->norm->Bl.type == LIST_column) { |
{ |
mdoc->flags |= MDOC_FREECOL; |
|
mdoc_macro(mdoc, MDOC_It, ln, sv, &sv, buf); |
|
return 1; |
|
} |
|
|
if (p->parent) |
/* |
p->parent->nchild--; |
* If we're following a block-level `It' within a `Bl -column' |
if (p->string) |
* context (perhaps opened in the above block or in ptext()), |
free(p->string); |
* then open an `It' block context around the parsed macro. |
if (p->args) |
*/ |
mdoc_argv_free(p->args); |
|
free(p); |
|
} |
|
|
|
|
if (n->tok == MDOC_It && n->type == ROFFT_BLOCK && |
|
NULL != n->parent && |
|
MDOC_Bl == n->parent->tok && |
|
LIST_column == n->parent->norm->Bl.type) { |
|
mdoc->flags |= MDOC_FREECOL; |
|
mdoc_macro(mdoc, MDOC_It, ln, sv, &sv, buf); |
|
return 1; |
|
} |
|
|
void |
/* Normal processing of a macro. */ |
mdoc_node_freelist(struct mdoc_node *p) |
|
{ |
|
|
|
if (p->child) |
mdoc_macro(mdoc, tok, ln, sv, &offs, buf); |
mdoc_node_freelist(p->child); |
|
if (p->next) |
|
mdoc_node_freelist(p->next); |
|
|
|
assert(0 == p->nchild); |
/* In quick mode (for mandocdb), abort after the NAME section. */ |
mdoc_node_free(p); |
|
} |
|
|
|
|
if (mdoc->quick && MDOC_Sh == tok && |
|
SEC_NAME != mdoc->last->sec) |
|
return 2; |
|
|
/* |
return 1; |
* Parse free-form text, that is, a line that does not begin with the |
|
* control character. |
|
*/ |
|
static int |
|
parsetext(struct mdoc *m, int line, char *buf) |
|
{ |
|
|
|
if (SEC_NONE == m->lastnamed) |
|
return(mdoc_perr(m, line, 0, ETEXTPROL)); |
|
|
|
if (0 == buf[0] && ! (MDOC_LITERAL & m->flags)) |
|
return(mdoc_perr(m, line, 0, ENOBLANK)); |
|
|
|
if ( ! mdoc_word_alloc(m, line, 0, buf)) |
|
return(0); |
|
|
|
m->next = MDOC_NEXT_SIBLING; |
|
return(1); |
|
} |
} |
|
|
|
enum mdelim |
static int |
mdoc_isdelim(const char *p) |
macrowarn(struct mdoc *m, int ln, const char *buf) |
|
{ |
{ |
if ( ! (MDOC_IGN_MACRO & m->pflags)) |
|
return(mdoc_verr(m, ln, 1, |
|
"unknown macro: %s%s", |
|
buf, strlen(buf) > 3 ? "..." : "")); |
|
return(mdoc_vwarn(m, ln, 1, "unknown macro: %s%s", |
|
buf, strlen(buf) > 3 ? "..." : "")); |
|
} |
|
|
|
|
if ('\0' == p[0]) |
|
return DELIM_NONE; |
|
|
/* |
if ('\0' == p[1]) |
* Parse a macro line, that is, a line beginning with the control |
switch (p[0]) { |
* character. |
case '(': |
*/ |
/* FALLTHROUGH */ |
int |
case '[': |
parsemacro(struct mdoc *m, int ln, char *buf) |
return DELIM_OPEN; |
{ |
case '|': |
int i, c; |
return DELIM_MIDDLE; |
char mac[5]; |
case '.': |
|
/* FALLTHROUGH */ |
|
case ',': |
|
/* FALLTHROUGH */ |
|
case ';': |
|
/* FALLTHROUGH */ |
|
case ':': |
|
/* FALLTHROUGH */ |
|
case '?': |
|
/* FALLTHROUGH */ |
|
case '!': |
|
/* FALLTHROUGH */ |
|
case ')': |
|
/* FALLTHROUGH */ |
|
case ']': |
|
return DELIM_CLOSE; |
|
default: |
|
return DELIM_NONE; |
|
} |
|
|
/* Empty lines are ignored. */ |
if ('\\' != p[0]) |
|
return DELIM_NONE; |
|
|
if (0 == buf[1]) |
if (0 == strcmp(p + 1, ".")) |
return(1); |
return DELIM_CLOSE; |
|
if (0 == strcmp(p + 1, "fR|\\fP")) |
|
return DELIM_MIDDLE; |
|
|
if (' ' == buf[1]) { |
return DELIM_NONE; |
i = 2; |
|
while (buf[i] && ' ' == buf[i]) |
|
i++; |
|
if (0 == buf[i]) |
|
return(1); |
|
return(mdoc_perr(m, ln, 1, ESPACE)); |
|
} |
|
|
|
/* Copy the first word into a nil-terminated buffer. */ |
|
|
|
for (i = 1; i < 5; i++) { |
|
if (0 == (mac[i - 1] = buf[i])) |
|
break; |
|
else if (' ' == buf[i]) |
|
break; |
|
} |
|
|
|
mac[i - 1] = 0; |
|
|
|
if (i == 5 || i <= 2) { |
|
if ( ! macrowarn(m, ln, mac)) |
|
goto err; |
|
return(1); |
|
} |
|
|
|
if (MDOC_MAX == (c = mdoc_hash_find(m->htab, mac))) { |
|
if ( ! macrowarn(m, ln, mac)) |
|
goto err; |
|
return(1); |
|
} |
|
|
|
/* The macro is sane. Jump to the next word. */ |
|
|
|
while (buf[i] && ' ' == buf[i]) |
|
i++; |
|
|
|
/* Begin recursive parse sequence. */ |
|
|
|
if ( ! mdoc_macro(m, c, ln, 1, &i, buf)) |
|
goto err; |
|
|
|
return(1); |
|
|
|
err: /* Error out. */ |
|
|
|
m->flags |= MDOC_HALT; |
|
return(0); |
|
} |
} |