version 1.82, 2009/06/16 19:45:51 |
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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enum merr { |
const char *const __mdoc_macronames[MDOC_MAX + 1] = { |
ENOCALL, |
"text", |
EBODYPROL, |
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EPROLBODY, |
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ESPACE, |
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ETEXTPROL, |
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ENOBLANK, |
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EMALLOC |
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}; |
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const char *const __mdoc_macronames[MDOC_MAX] = { |
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"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 44 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 65 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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static int perr(struct mdoc *, int, int, enum merr); |
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#define verr(m, t) perr((m), (m)->last->line, (m)->last->pos, (t)) |
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/* |
/* |
* Get the first (root) node of the parse tree. |
* 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()). |
*/ |
*/ |
const struct mdoc_node * |
int |
mdoc_node(const struct mdoc *m) |
mdoc_parseln(struct roff_man *mdoc, int ln, char *buf, int offs) |
{ |
{ |
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return(MDOC_HALT & m->flags ? NULL : m->first); |
if (mdoc->last->type != ROFFT_EQN || ln > mdoc->last->line) |
} |
mdoc->flags |= MDOC_NEWLINE; |
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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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const struct mdoc_meta * |
return roff_getcontrol(mdoc->roff, buf, &offs) ? |
mdoc_meta(const struct mdoc *m) |
mdoc_pmacro(mdoc, ln, buf, offs) : |
{ |
mdoc_ptext(mdoc, ln, buf, offs); |
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return(MDOC_HALT & m->flags ? NULL : &m->meta); |
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} |
} |
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void |
static void |
mdoc_macro(MACRO_PROT_ARGS) |
mdoc_free1(struct mdoc *mdoc) |
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{ |
{ |
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assert(tok > TOKEN_NONE && tok < MDOC_MAX); |
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if (mdoc->first) |
if (mdoc->flags & MDOC_PBODY) { |
mdoc_node_freelist(mdoc->first); |
if (tok == MDOC_Dt) { |
if (mdoc->meta.title) |
mandoc_vmsg(MANDOCERR_DT_LATE, |
free(mdoc->meta.title); |
mdoc->parse, line, ppos, |
if (mdoc->meta.os) |
"Dt %s", buf + *pos); |
free(mdoc->meta.os); |
return; |
if (mdoc->meta.name) |
} |
free(mdoc->meta.name); |
} else if ( ! (mdoc_macros[tok].flags & MDOC_PROLOGUE)) { |
if (mdoc->meta.arch) |
if (mdoc->meta.title == NULL) { |
free(mdoc->meta.arch); |
mandoc_vmsg(MANDOCERR_DT_NOTITLE, |
if (mdoc->meta.vol) |
mdoc->parse, line, ppos, "%s %s", |
free(mdoc->meta.vol); |
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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void |
static int |
mdoc_tail_alloc(struct roff_man *mdoc, int line, int pos, int tok) |
mdoc_alloc1(struct mdoc *mdoc) |
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{ |
{ |
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struct roff_node *p; |
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bzero(&mdoc->meta, sizeof(struct mdoc_meta)); |
p = roff_node_alloc(mdoc, line, pos, ROFFT_TAIL, tok); |
mdoc->flags = 0; |
roff_node_append(mdoc, p); |
mdoc->lastnamed = mdoc->lastsec = 0; |
mdoc->next = ROFF_NEXT_CHILD; |
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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struct roff_node * |
/* |
mdoc_endbody_alloc(struct roff_man *mdoc, int line, int pos, int tok, |
* Free up all resources contributed by a parse: the node tree, |
struct roff_node *body, enum mdoc_endbody end) |
* meta-data and so on. Then reallocate the root node for another |
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* parse. |
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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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struct roff_node *p; |
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mdoc_free1(mdoc); |
body->flags |= MDOC_ENDED; |
return(mdoc_alloc1(mdoc)); |
body->parent->flags |= MDOC_ENDED; |
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p = roff_node_alloc(mdoc, line, pos, ROFFT_BODY, tok); |
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p->body = body; |
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p->norm = body->norm; |
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p->end = end; |
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roff_node_append(mdoc, p); |
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mdoc->next = ROFF_NEXT_SIBLING; |
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return p; |
} |
} |
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struct roff_node * |
/* |
mdoc_block_alloc(struct roff_man *mdoc, int line, int pos, |
* Completely free up all resources. |
int tok, struct mdoc_arg *args) |
*/ |
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void |
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mdoc_free(struct mdoc *mdoc) |
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{ |
{ |
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struct roff_node *p; |
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mdoc_free1(mdoc); |
p = roff_node_alloc(mdoc, line, pos, ROFFT_BLOCK, tok); |
if (mdoc->htab) |
p->args = args; |
mdoc_hash_free(mdoc->htab); |
if (p->args) |
free(mdoc); |
(args->refcnt)++; |
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switch (tok) { |
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case MDOC_Bd: |
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/* FALLTHROUGH */ |
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case MDOC_Bf: |
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/* FALLTHROUGH */ |
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case MDOC_Bl: |
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/* FALLTHROUGH */ |
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case MDOC_En: |
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/* FALLTHROUGH */ |
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case MDOC_Rs: |
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p->norm = mandoc_calloc(1, sizeof(union mdoc_data)); |
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break; |
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default: |
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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 |
struct mdoc * |
mdoc_elem_alloc(struct roff_man *mdoc, int line, int pos, |
mdoc_alloc(void *data, int pflags, const struct mdoc_cb *cb) |
int tok, struct mdoc_arg *args) |
{ |
{ |
struct mdoc *p; |
struct roff_node *p; |
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if (NULL == (p = calloc(1, sizeof(struct mdoc)))) |
p = roff_node_alloc(mdoc, line, pos, ROFFT_ELEM, tok); |
return(NULL); |
p->args = args; |
if (cb) |
if (p->args) |
(void)memcpy(&p->cb, cb, sizeof(struct mdoc_cb)); |
(args->refcnt)++; |
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p->data = data; |
switch (tok) { |
p->pflags = pflags; |
case MDOC_An: |
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p->norm = mandoc_calloc(1, sizeof(union mdoc_data)); |
if (NULL == (p->htab = mdoc_hash_alloc())) { |
break; |
free(p); |
default: |
return(NULL); |
break; |
} else if (mdoc_alloc1(p)) |
} |
return(p); |
roff_node_append(mdoc, p); |
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mdoc->next = ROFF_NEXT_CHILD; |
free(p); |
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return(NULL); |
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} |
} |
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void |
/* |
mdoc_node_relink(struct roff_man *mdoc, struct roff_node *p) |
* Climb back up the parse tree, validating open scopes. Mostly calls |
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* 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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if (MDOC_HALT & m->flags) |
roff_node_unlink(mdoc, p); |
return(0); |
roff_node_append(mdoc, p); |
else if (mdoc_macroend(m)) |
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return(1); |
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m->flags |= MDOC_HALT; |
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return(0); |
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} |
} |
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/* |
/* |
* Main parse routine. Parses a single line -- really just hands off to |
* Parse free-form text, that is, a line that does not begin with the |
* the macro or text parser. |
* control character. |
*/ |
*/ |
int |
static int |
mdoc_parseln(struct mdoc *m, int ln, char *buf) |
mdoc_ptext(struct roff_man *mdoc, int line, char *buf, int offs) |
{ |
{ |
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struct roff_node *n; |
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char *c, *ws, *end; |
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/* If in error-mode, then we parse no more. */ |
assert(mdoc->last); |
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n = mdoc->last; |
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if (MDOC_HALT & m->flags) |
/* |
return(0); |
* Divert directly to list processing if we're encountering a |
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* columnar ROFFT_BLOCK with or without a prior ROFFT_BLOCK entry |
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* (a ROFFT_BODY means it's already open, in which case we should |
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* process within its context in the normal way). |
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*/ |
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return('.' == *buf ? parsemacro(m, ln, buf) : |
if (n->tok == MDOC_Bl && n->type == ROFFT_BODY && |
parsetext(m, ln, buf)); |
n->end == ENDBODY_NOT && n->norm->Bl.type == LIST_column) { |
} |
/* `Bl' is open without any children. */ |
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mdoc->flags |= MDOC_FREECOL; |
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mdoc_macro(mdoc, MDOC_It, line, offs, &offs, buf); |
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return 1; |
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} |
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if (n->tok == MDOC_It && n->type == ROFFT_BLOCK && |
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NULL != n->parent && |
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MDOC_Bl == n->parent->tok && |
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LIST_column == n->parent->norm->Bl.type) { |
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/* `Bl' has block-level `It' children. */ |
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mdoc->flags |= MDOC_FREECOL; |
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mdoc_macro(mdoc, MDOC_It, line, offs, &offs, buf); |
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return 1; |
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} |
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int |
/* |
mdoc_verr(struct mdoc *mdoc, int ln, int pos, |
* Search for the beginning of unescaped trailing whitespace (ws) |
const char *fmt, ...) |
* and for the first character not to be output (end). |
{ |
*/ |
char buf[256]; |
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va_list ap; |
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if (NULL == mdoc->cb.mdoc_err) |
/* FIXME: replace with strcspn(). */ |
return(0); |
ws = NULL; |
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for (c = end = buf + offs; *c; c++) { |
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switch (*c) { |
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case ' ': |
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if (NULL == ws) |
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ws = c; |
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continue; |
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case '\t': |
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/* |
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* Always warn about trailing tabs, |
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* even outside literal context, |
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* where they should be put on the next line. |
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*/ |
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if (NULL == ws) |
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ws = c; |
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/* |
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* Strip trailing tabs in literal context only; |
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* outside, they affect the next line. |
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*/ |
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if (MDOC_LITERAL & mdoc->flags) |
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continue; |
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break; |
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case '\\': |
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/* Skip the escaped character, too, if any. */ |
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if (c[1]) |
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c++; |
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/* FALLTHROUGH */ |
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default: |
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ws = NULL; |
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break; |
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} |
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end = c + 1; |
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} |
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*end = '\0'; |
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va_start(ap, fmt); |
if (ws) |
(void)vsnprintf(buf, sizeof(buf) - 1, fmt, ap); |
mandoc_msg(MANDOCERR_SPACE_EOL, mdoc->parse, |
va_end(ap); |
line, (int)(ws-buf), NULL); |
return((*mdoc->cb.mdoc_err)(mdoc->data, ln, pos, buf)); |
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} |
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if (buf[offs] == '\0' && ! (mdoc->flags & MDOC_LITERAL)) { |
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mandoc_msg(MANDOCERR_FI_BLANK, mdoc->parse, |
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line, (int)(c - buf), NULL); |
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int |
/* |
mdoc_vwarn(struct mdoc *mdoc, int ln, int pos, |
* Insert a `sp' in the case of a blank line. Technically, |
enum mdoc_warn type, const char *fmt, ...) |
* blank lines aren't allowed, but enough manuals assume this |
{ |
* behaviour that we want to work around it. |
char buf[256]; |
*/ |
va_list ap; |
roff_elem_alloc(mdoc, line, offs, MDOC_sp); |
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mdoc->next = ROFF_NEXT_SIBLING; |
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mdoc_valid_post(mdoc); |
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return 1; |
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} |
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if (NULL == mdoc->cb.mdoc_warn) |
roff_word_alloc(mdoc, line, offs, buf+offs); |
return(0); |
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va_start(ap, fmt); |
if (mdoc->flags & MDOC_LITERAL) |
(void)vsnprintf(buf, sizeof(buf) - 1, fmt, ap); |
return 1; |
va_end(ap); |
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return((*mdoc->cb.mdoc_warn)(mdoc->data, ln, pos, type, buf)); |
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} |
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/* |
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* End-of-sentence check. If the last character is an unescaped |
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* EOS character, then flag the node as being the end of a |
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* sentence. The front-end will know how to interpret this. |
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*/ |
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int |
assert(buf < end); |
mdoc_nerr(struct mdoc *mdoc, const struct mdoc_node *node, 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_err) |
if (mandoc_eos(buf+offs, (size_t)(end-buf-offs))) |
return(0); |
mdoc->last->flags |= MDOC_EOS; |
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return 1; |
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_err)(mdoc->data, node->line, node->pos, buf)); |
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} |
} |
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/* |
int |
* Parse a macro line, that is, a line beginning with the control |
mdoc_warn(struct mdoc *mdoc, enum mdoc_warn type, const char *fmt, ...) |
* character. |
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*/ |
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static int |
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mdoc_pmacro(struct roff_man *mdoc, int ln, char *buf, int offs) |
{ |
{ |
char buf[256]; |
struct roff_node *n; |
va_list ap; |
const char *cp; |
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int tok; |
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int i, sv; |
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char mac[5]; |
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if (NULL == mdoc->cb.mdoc_warn) |
sv = offs; |
return(0); |
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va_start(ap, fmt); |
/* |
(void)vsnprintf(buf, sizeof(buf) - 1, fmt, ap); |
* Copy the first word into a nil-terminated buffer. |
va_end(ap); |
* Stop when a space, tab, escape, or eoln is encountered. |
return((*mdoc->cb.mdoc_warn)(mdoc->data, mdoc->last->line, |
*/ |
mdoc->last->pos, type, buf)); |
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} |
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i = 0; |
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while (i < 4 && strchr(" \t\\", buf[offs]) == NULL) |
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mac[i++] = buf[offs++]; |
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int |
mac[i] = '\0'; |
mdoc_err(struct mdoc *mdoc, 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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|
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if (NULL == mdoc->cb.mdoc_err) |
tok = (i > 1 && i < 4) ? mdoc_hash_find(mac) : TOKEN_NONE; |
return(0); |
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va_start(ap, fmt); |
if (tok == TOKEN_NONE) { |
(void)vsnprintf(buf, sizeof(buf) - 1, fmt, ap); |
mandoc_msg(MANDOCERR_MACRO, mdoc->parse, |
va_end(ap); |
ln, sv, buf + sv - 1); |
return((*mdoc->cb.mdoc_err)(mdoc->data, mdoc->last->line, |
return 1; |
mdoc->last->pos, buf)); |
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} |
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|
|
|
int |
|
mdoc_pwarn(struct mdoc *mdoc, int line, int pos, enum mdoc_warn type, |
|
const char *fmt, ...) |
|
{ |
|
char buf[256]; |
|
va_list ap; |
|
|
|
if (NULL == mdoc->cb.mdoc_warn) |
|
return(0); |
|
|
|
va_start(ap, fmt); |
|
(void)vsnprintf(buf, sizeof(buf) - 1, fmt, ap); |
|
va_end(ap); |
|
return((*mdoc->cb.mdoc_warn)(mdoc->data, line, pos, type, buf)); |
|
} |
|
|
|
int |
|
mdoc_perr(struct mdoc *mdoc, int line, int pos, const char *fmt, ...) |
|
{ |
|
char buf[256]; |
|
va_list ap; |
|
|
|
if (NULL == mdoc->cb.mdoc_err) |
|
return(0); |
|
|
|
va_start(ap, fmt); |
|
(void)vsnprintf(buf, sizeof(buf) - 1, fmt, ap); |
|
va_end(ap); |
|
return((*mdoc->cb.mdoc_err)(mdoc->data, line, pos, buf)); |
|
} |
|
|
|
|
|
int |
|
mdoc_macro(struct mdoc *m, int tok, |
|
int ln, int pp, int *pos, char *buf) |
|
{ |
|
|
|
/* FIXME - these should happen during validation. */ |
|
|
|
if (MDOC_PROLOGUE & mdoc_macros[tok].flags && |
|
SEC_PROLOGUE != m->lastnamed) |
|
return(perr(m, ln, pp, EPROLBODY)); |
|
|
|
if ( ! (MDOC_PROLOGUE & mdoc_macros[tok].flags) && |
|
SEC_PROLOGUE == m->lastnamed) |
|
return(perr(m, ln, pp, EBODYPROL)); |
|
|
|
if (1 != pp && ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) |
|
return(perr(m, ln, pp, ENOCALL)); |
|
|
|
return((*mdoc_macros[tok].fp)(m, tok, ln, pp, pos, buf)); |
|
} |
|
|
|
|
|
static int |
|
perr(struct mdoc *m, int line, int pos, enum merr type) |
|
{ |
|
char *p; |
|
|
|
p = NULL; |
|
switch (type) { |
|
case (ENOCALL): |
|
p = "not callable"; |
|
break; |
|
case (EPROLBODY): |
|
p = "macro disallowed in document body"; |
|
break; |
|
case (EBODYPROL): |
|
p = "macro disallowed in document prologue"; |
|
break; |
|
case (EMALLOC): |
|
p = "memory exhausted"; |
|
break; |
|
case (ETEXTPROL): |
|
p = "text disallowed in document prologue"; |
|
break; |
|
case (ENOBLANK): |
|
p = "blank lines disallowed in non-literal contexts"; |
|
break; |
|
case (ESPACE): |
|
p = "whitespace disallowed after delimiter"; |
|
break; |
|
} |
} |
assert(p); |
|
return(mdoc_perr(m, line, pos, p)); |
|
} |
|
|
|
|
/* Skip a leading escape sequence or tab. */ |
|
|
static int |
switch (buf[offs]) { |
node_append(struct mdoc *mdoc, struct mdoc_node *p) |
case '\\': |
{ |
cp = buf + offs + 1; |
|
mandoc_escape(&cp, NULL, NULL); |
assert(mdoc->last); |
offs = cp - buf; |
assert(mdoc->first); |
|
assert(MDOC_ROOT != p->type); |
|
|
|
switch (mdoc->next) { |
|
case (MDOC_NEXT_SIBLING): |
|
mdoc->last->next = p; |
|
p->prev = mdoc->last; |
|
p->parent = mdoc->last->parent; |
|
break; |
break; |
case (MDOC_NEXT_CHILD): |
case '\t': |
mdoc->last->child = p; |
offs++; |
p->parent = mdoc->last; |
|
break; |
break; |
default: |
default: |
abort(); |
|
/* NOTREACHED */ |
|
} |
|
|
|
if ( ! mdoc_valid_pre(mdoc, p)) |
|
return(0); |
|
if ( ! mdoc_action_pre(mdoc, p)) |
|
return(0); |
|
|
|
switch (p->type) { |
|
case (MDOC_HEAD): |
|
assert(MDOC_BLOCK == p->parent->type); |
|
p->parent->head = p; |
|
break; |
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; |
/* Jump to the next non-whitespace word. */ |
|
|
switch (p->type) { |
while (buf[offs] && ' ' == buf[offs]) |
case (MDOC_TEXT): |
offs++; |
if ( ! mdoc_valid_post(mdoc)) |
|
return(0); |
|
if ( ! mdoc_action_post(mdoc)) |
|
return(0); |
|
break; |
|
default: |
|
break; |
|
} |
|
|
|
return(1); |
/* |
} |
* Trailing whitespace. Note that tabs are allowed to be passed |
|
* into the parser as "text", so we only warn about spaces here. |
|
*/ |
|
|
|
if ('\0' == buf[offs] && ' ' == buf[offs - 1]) |
|
mandoc_msg(MANDOCERR_SPACE_EOL, mdoc->parse, |
|
ln, offs - 1, NULL); |
|
|
static struct mdoc_node * |
/* |
node_alloc(struct mdoc *mdoc, int line, |
* If an initial macro or a list invocation, divert directly |
int pos, int tok, enum mdoc_type type) |
* into macro processing. |
{ |
*/ |
struct mdoc_node *p; |
|
|
|
if (NULL == (p = calloc(1, sizeof(struct mdoc_node)))) { |
if (NULL == mdoc->last || MDOC_It == tok || MDOC_El == tok) { |
(void)verr(mdoc, EMALLOC); |
mdoc_macro(mdoc, tok, ln, sv, &offs, buf); |
return(NULL); |
return 1; |
} |
} |
|
|
p->sec = mdoc->lastsec; |
n = mdoc->last; |
p->line = line; |
|
p->pos = pos; |
|
p->tok = tok; |
|
if (MDOC_TEXT != (p->type = type)) |
|
assert(p->tok >= 0); |
|
|
|
return(p); |
|
} |
|
|
|
|
|
int |
|
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 (NULL == p) |
|
return(0); |
|
return(node_append(mdoc, p)); |
|
} |
|
|
|
|
|
int |
|
mdoc_head_alloc(struct mdoc *mdoc, int line, int pos, int tok) |
|
{ |
|
struct mdoc_node *p; |
|
|
|
assert(mdoc->first); |
|
assert(mdoc->last); |
assert(mdoc->last); |
|
|
p = node_alloc(mdoc, line, pos, tok, MDOC_HEAD); |
/* |
if (NULL == p) |
* If the first macro of a `Bl -column', open an `It' block |
return(0); |
* context around the parsed macro. |
return(node_append(mdoc, p)); |
*/ |
} |
|
|
|
|
if (n->tok == MDOC_Bl && n->type == ROFFT_BODY && |
|
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; |
|
} |
|
|
int |
/* |
mdoc_body_alloc(struct mdoc *mdoc, int line, int pos, int tok) |
* If we're following a block-level `It' within a `Bl -column' |
{ |
* context (perhaps opened in the above block or in ptext()), |
struct mdoc_node *p; |
* then open an `It' block context around the parsed macro. |
|
*/ |
|
|
p = node_alloc(mdoc, line, pos, tok, MDOC_BODY); |
if (n->tok == MDOC_It && n->type == ROFFT_BLOCK && |
if (NULL == p) |
NULL != n->parent && |
return(0); |
MDOC_Bl == n->parent->tok && |
return(node_append(mdoc, p)); |
LIST_column == n->parent->norm->Bl.type) { |
} |
mdoc->flags |= MDOC_FREECOL; |
|
mdoc_macro(mdoc, MDOC_It, ln, sv, &sv, buf); |
|
return 1; |
int |
|
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); |
|
if (NULL == p) |
|
return(0); |
|
p->args = args; |
|
if (p->args) |
|
(args->refcnt)++; |
|
return(node_append(mdoc, p)); |
|
} |
|
|
|
|
|
int |
|
mdoc_elem_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_ELEM); |
|
if (NULL == p) |
|
return(0); |
|
p->args = args; |
|
if (p->args) |
|
(args->refcnt)++; |
|
return(node_append(mdoc, p)); |
|
} |
|
|
|
|
|
int |
|
mdoc_word_alloc(struct mdoc *mdoc, |
|
int line, int pos, const char *word) |
|
{ |
|
struct mdoc_node *p; |
|
|
|
p = node_alloc(mdoc, line, pos, -1, MDOC_TEXT); |
|
if (NULL == p) |
|
return(0); |
|
if (NULL == (p->string = strdup(word))) { |
|
(void)verr(mdoc, EMALLOC); |
|
return(0); |
|
} |
} |
return(node_append(mdoc, p)); |
|
} |
|
|
|
|
/* Normal processing of a macro. */ |
|
|
void |
mdoc_macro(mdoc, tok, ln, sv, &offs, buf); |
mdoc_node_free(struct mdoc_node *p) |
|
{ |
|
|
|
if (p->string) |
/* In quick mode (for mandocdb), abort after the NAME section. */ |
free(p->string); |
|
if (p->args) |
|
mdoc_argv_free(p->args); |
|
free(p); |
|
} |
|
|
|
|
if (mdoc->quick && MDOC_Sh == tok && |
|
SEC_NAME != mdoc->last->sec) |
|
return 2; |
|
|
void |
return 1; |
mdoc_node_freelist(struct mdoc_node *p) |
|
{ |
|
|
|
if (p->child) |
|
mdoc_node_freelist(p->child); |
|
if (p->next) |
|
mdoc_node_freelist(p->next); |
|
|
|
mdoc_node_free(p); |
|
} |
} |
|
|
|
enum mdelim |
/* |
mdoc_isdelim(const char *p) |
* 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_PROLOGUE == m->lastnamed) |
if ('\0' == p[0]) |
return(perr(m, line, 0, ETEXTPROL)); |
return DELIM_NONE; |
|
|
if (0 == buf[0] && ! (MDOC_LITERAL & m->flags)) |
if ('\0' == p[1]) |
return(perr(m, line, 0, ENOBLANK)); |
switch (p[0]) { |
|
case '(': |
|
/* FALLTHROUGH */ |
|
case '[': |
|
return DELIM_OPEN; |
|
case '|': |
|
return DELIM_MIDDLE; |
|
case '.': |
|
/* FALLTHROUGH */ |
|
case ',': |
|
/* FALLTHROUGH */ |
|
case ';': |
|
/* FALLTHROUGH */ |
|
case ':': |
|
/* FALLTHROUGH */ |
|
case '?': |
|
/* FALLTHROUGH */ |
|
case '!': |
|
/* FALLTHROUGH */ |
|
case ')': |
|
/* FALLTHROUGH */ |
|
case ']': |
|
return DELIM_CLOSE; |
|
default: |
|
return DELIM_NONE; |
|
} |
|
|
if ( ! mdoc_word_alloc(m, line, 0, buf)) |
if ('\\' != p[0]) |
return(0); |
return DELIM_NONE; |
|
|
m->next = MDOC_NEXT_SIBLING; |
if (0 == strcmp(p + 1, ".")) |
return(1); |
return DELIM_CLOSE; |
} |
if (0 == strcmp(p + 1, "fR|\\fP")) |
|
return DELIM_MIDDLE; |
|
|
|
return DELIM_NONE; |
static int |
|
macrowarn(struct mdoc *m, int ln, const char *buf) |
|
{ |
|
if ( ! (MDOC_IGN_MACRO & m->pflags)) |
|
return(mdoc_perr(m, ln, 1, |
|
"unknown macro: %s%s", |
|
buf, strlen(buf) > 3 ? "..." : "")); |
|
return(mdoc_pwarn(m, ln, 1, WARN_SYNTAX, |
|
"unknown macro: %s%s", |
|
buf, strlen(buf) > 3 ? "..." : "")); |
|
} |
|
|
|
|
|
|
|
/* |
|
* Parse a macro line, that is, a line beginning with the control |
|
* character. |
|
*/ |
|
int |
|
parsemacro(struct mdoc *m, int ln, char *buf) |
|
{ |
|
int i, c; |
|
char mac[5]; |
|
|
|
/* Empty lines are ignored. */ |
|
|
|
if (0 == buf[1]) |
|
return(1); |
|
|
|
if (' ' == buf[1]) { |
|
i = 2; |
|
while (buf[i] && ' ' == buf[i]) |
|
i++; |
|
if (0 == buf[i]) |
|
return(1); |
|
return(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); |
|
} |
} |