version 1.21, 2009/06/16 19:55:28 |
version 1.92, 2010/12/08 10:58:22 |
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/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se> |
* Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv> |
* |
* |
* 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 |
|
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* 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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#ifdef HAVE_CONFIG_H |
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#include "config.h" |
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#endif |
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#include <sys/types.h> |
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#include <assert.h> |
#include <assert.h> |
#include <ctype.h> |
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#include <stdarg.h> |
#include <stdarg.h> |
#include <stdlib.h> |
#include <stdlib.h> |
#include <stdio.h> |
#include <stdio.h> |
#include <string.h> |
#include <string.h> |
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#include "mandoc.h" |
#include "libman.h" |
#include "libman.h" |
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#include "libmandoc.h" |
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const char *const __man_macronames[MAN_MAX] = { |
const char *const __man_macronames[MAN_MAX] = { |
"br", "TH", "SH", "SS", |
"br", "TH", "SH", "SS", |
Line 29 const char *const __man_macronames[MAN_MAX] = { |
|
Line 36 const char *const __man_macronames[MAN_MAX] = { |
|
"IP", "HP", "SM", "SB", |
"IP", "HP", "SM", "SB", |
"BI", "IB", "BR", "RB", |
"BI", "IB", "BR", "RB", |
"R", "B", "I", "IR", |
"R", "B", "I", "IR", |
"RI", "na", "i" |
"RI", "na", "sp", "nf", |
|
"fi", "RE", "RS", "DT", |
|
"UC", "PD", "AT", "in", |
|
"ft" |
}; |
}; |
|
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const char * const *man_macronames = __man_macronames; |
const char * const *man_macronames = __man_macronames; |
|
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static struct man_node *man_node_alloc(int, int, |
static struct man_node *man_node_alloc(int, int, |
enum man_type, int); |
enum man_type, enum mant); |
static int man_node_append(struct man *, |
static int man_node_append(struct man *, |
struct man_node *); |
struct man_node *); |
static int man_ptext(struct man *, int, char *); |
static void man_node_free(struct man_node *); |
static int man_pmacro(struct man *, int, char *); |
static void man_node_unlink(struct man *, |
|
struct man_node *); |
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static int man_ptext(struct man *, int, char *, int); |
|
static int man_pmacro(struct man *, int, char *, int); |
static void man_free1(struct man *); |
static void man_free1(struct man *); |
static int man_alloc1(struct man *); |
static void man_alloc1(struct man *); |
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const struct man_node * |
const struct man_node * |
Line 60 man_meta(const struct man *m) |
|
Line 73 man_meta(const struct man *m) |
|
} |
} |
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int |
void |
man_reset(struct man *man) |
man_reset(struct man *man) |
{ |
{ |
|
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man_free1(man); |
man_free1(man); |
return(man_alloc1(man)); |
man_alloc1(man); |
} |
} |
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Line 74 man_free(struct man *man) |
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Line 87 man_free(struct man *man) |
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{ |
{ |
|
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man_free1(man); |
man_free1(man); |
|
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if (man->htab) |
|
man_hash_free(man->htab); |
|
free(man); |
free(man); |
} |
} |
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struct man * |
struct man * |
man_alloc(void *data, int pflags, const struct man_cb *cb) |
man_alloc(struct regset *regs, void *data, mandocmsg msg) |
{ |
{ |
struct man *p; |
struct man *p; |
|
|
if (NULL == (p = calloc(1, sizeof(struct man)))) |
p = mandoc_calloc(1, sizeof(struct man)); |
return(NULL); |
|
|
|
if ( ! man_alloc1(p)) { |
man_hash_init(); |
free(p); |
|
return(NULL); |
|
} |
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|
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p->data = data; |
p->data = data; |
p->pflags = pflags; |
p->msg = msg; |
(void)memcpy(&p->cb, cb, sizeof(struct man_cb)); |
p->regs = regs; |
|
|
if (NULL == (p->htab = man_hash_alloc())) { |
man_alloc1(p); |
free(p); |
|
return(NULL); |
|
} |
|
return(p); |
return(p); |
} |
} |
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Line 120 man_endparse(struct man *m) |
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Line 122 man_endparse(struct man *m) |
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int |
int |
man_parseln(struct man *m, int ln, char *buf) |
man_parseln(struct man *m, int ln, char *buf, int offs) |
{ |
{ |
|
|
return('.' == *buf ? |
if (MAN_HALT & m->flags) |
man_pmacro(m, ln, buf) : |
return(0); |
man_ptext(m, ln, buf)); |
|
|
return(('.' == buf[offs] || '\'' == buf[offs]) ? |
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man_pmacro(m, ln, buf, offs) : |
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man_ptext(m, ln, buf, offs)); |
} |
} |
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Line 134 man_free1(struct man *man) |
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Line 139 man_free1(struct man *man) |
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{ |
{ |
|
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if (man->first) |
if (man->first) |
man_node_freelist(man->first); |
man_node_delete(man, man->first); |
if (man->meta.title) |
if (man->meta.title) |
free(man->meta.title); |
free(man->meta.title); |
if (man->meta.source) |
if (man->meta.source) |
free(man->meta.source); |
free(man->meta.source); |
|
if (man->meta.rawdate) |
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free(man->meta.rawdate); |
if (man->meta.vol) |
if (man->meta.vol) |
free(man->meta.vol); |
free(man->meta.vol); |
|
if (man->meta.msec) |
|
free(man->meta.msec); |
} |
} |
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static int |
static void |
man_alloc1(struct man *m) |
man_alloc1(struct man *m) |
{ |
{ |
|
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bzero(&m->meta, sizeof(struct man_meta)); |
memset(&m->meta, 0, sizeof(struct man_meta)); |
m->flags = 0; |
m->flags = 0; |
m->last = calloc(1, sizeof(struct man_node)); |
m->last = mandoc_calloc(1, sizeof(struct man_node)); |
if (NULL == m->last) |
|
return(0); |
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m->first = m->last; |
m->first = m->last; |
m->last->type = MAN_ROOT; |
m->last->type = MAN_ROOT; |
|
m->last->tok = MAN_MAX; |
m->next = MAN_NEXT_CHILD; |
m->next = MAN_NEXT_CHILD; |
return(1); |
|
} |
} |
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Line 182 man_node_append(struct man *man, struct man_node *p) |
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Line 189 man_node_append(struct man *man, struct man_node *p) |
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abort(); |
abort(); |
/* NOTREACHED */ |
/* NOTREACHED */ |
} |
} |
|
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assert(p->parent); |
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p->parent->nchild++; |
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if ( ! man_valid_pre(man, p)) |
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return(0); |
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switch (p->type) { |
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case (MAN_HEAD): |
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assert(MAN_BLOCK == p->parent->type); |
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p->parent->head = p; |
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break; |
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case (MAN_BODY): |
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assert(MAN_BLOCK == p->parent->type); |
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p->parent->body = p; |
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break; |
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default: |
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break; |
|
} |
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man->last = p; |
man->last = p; |
|
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switch (p->type) { |
switch (p->type) { |
case (MAN_TEXT): |
case (MAN_TEXT): |
if ( ! man_valid_post(man)) |
if ( ! man_valid_post(man)) |
return(0); |
return(0); |
if ( ! man_action_post(man)) |
|
return(0); |
|
break; |
break; |
default: |
default: |
break; |
break; |
Line 201 man_node_append(struct man *man, struct man_node *p) |
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Line 225 man_node_append(struct man *man, struct man_node *p) |
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static struct man_node * |
static struct man_node * |
man_node_alloc(int line, int pos, enum man_type type, int tok) |
man_node_alloc(int line, int pos, enum man_type type, enum mant tok) |
{ |
{ |
struct man_node *p; |
struct man_node *p; |
|
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p = calloc(1, sizeof(struct man_node)); |
p = mandoc_calloc(1, sizeof(struct man_node)); |
if (NULL == p) |
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return(NULL); |
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p->line = line; |
p->line = line; |
p->pos = pos; |
p->pos = pos; |
p->type = type; |
p->type = type; |
Line 218 man_node_alloc(int line, int pos, enum man_type type, |
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Line 239 man_node_alloc(int line, int pos, enum man_type type, |
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int |
int |
man_elem_alloc(struct man *man, int line, int pos, int tok) |
man_elem_alloc(struct man *m, int line, int pos, enum mant tok) |
{ |
{ |
struct man_node *p; |
struct man_node *p; |
|
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p = man_node_alloc(line, pos, MAN_ELEM, tok); |
p = man_node_alloc(line, pos, MAN_ELEM, tok); |
if (NULL == p) |
if ( ! man_node_append(m, p)) |
return(0); |
return(0); |
return(man_node_append(man, p)); |
m->next = MAN_NEXT_CHILD; |
|
return(1); |
} |
} |
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int |
int |
man_word_alloc(struct man *man, |
man_head_alloc(struct man *m, int line, int pos, enum mant tok) |
int line, int pos, const char *word) |
|
{ |
{ |
struct man_node *p; |
struct man_node *p; |
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p = man_node_alloc(line, pos, MAN_TEXT, -1); |
p = man_node_alloc(line, pos, MAN_HEAD, tok); |
if (NULL == p) |
if ( ! man_node_append(m, p)) |
return(0); |
return(0); |
if (NULL == (p->string = strdup(word))) |
m->next = MAN_NEXT_CHILD; |
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return(1); |
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} |
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int |
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man_body_alloc(struct man *m, int line, int pos, enum mant tok) |
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{ |
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struct man_node *p; |
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p = man_node_alloc(line, pos, MAN_BODY, tok); |
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if ( ! man_node_append(m, p)) |
return(0); |
return(0); |
return(man_node_append(man, p)); |
m->next = MAN_NEXT_CHILD; |
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return(1); |
} |
} |
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void |
int |
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man_block_alloc(struct man *m, int line, int pos, enum mant tok) |
|
{ |
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struct man_node *p; |
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p = man_node_alloc(line, pos, MAN_BLOCK, tok); |
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if ( ! man_node_append(m, p)) |
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return(0); |
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m->next = MAN_NEXT_CHILD; |
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return(1); |
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} |
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int |
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man_word_alloc(struct man *m, int line, int pos, const char *word) |
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{ |
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struct man_node *n; |
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size_t sv, len; |
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len = strlen(word); |
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n = man_node_alloc(line, pos, MAN_TEXT, MAN_MAX); |
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n->string = mandoc_malloc(len + 1); |
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sv = strlcpy(n->string, word, len + 1); |
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/* Prohibit truncation. */ |
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assert(sv < len + 1); |
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if ( ! man_node_append(m, n)) |
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return(0); |
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m->next = MAN_NEXT_SIBLING; |
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return(1); |
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} |
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/* |
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* Free all of the resources held by a node. This does NOT unlink a |
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* node from its context; for that, see man_node_unlink(). |
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*/ |
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static void |
man_node_free(struct man_node *p) |
man_node_free(struct man_node *p) |
{ |
{ |
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Line 255 man_node_free(struct man_node *p) |
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Line 328 man_node_free(struct man_node *p) |
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void |
void |
man_node_freelist(struct man_node *p) |
man_node_delete(struct man *m, struct man_node *p) |
{ |
{ |
|
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if (p->child) |
while (p->child) |
man_node_freelist(p->child); |
man_node_delete(m, p->child); |
if (p->next) |
|
man_node_freelist(p->next); |
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man_node_unlink(m, p); |
man_node_free(p); |
man_node_free(p); |
} |
} |
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static int |
static int |
man_ptext(struct man *m, int line, char *buf) |
man_ptext(struct man *m, int line, char *buf, int offs) |
{ |
{ |
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int i; |
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if ( ! man_word_alloc(m, line, 0, buf)) |
/* Ignore bogus comments. */ |
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if ('\\' == buf[offs] && |
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'.' == buf[offs + 1] && |
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'"' == buf[offs + 2]) |
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return(man_pmsg(m, line, offs, MANDOCERR_BADCOMMENT)); |
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/* Literal free-form text whitespace is preserved. */ |
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if (MAN_LITERAL & m->flags) { |
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if ( ! man_word_alloc(m, line, offs, buf + offs)) |
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return(0); |
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goto descope; |
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} |
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/* Pump blank lines directly into the backend. */ |
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for (i = offs; ' ' == buf[i]; i++) |
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/* Skip leading whitespace. */ ; |
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if ('\0' == buf[i]) { |
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/* Allocate a blank entry. */ |
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if ( ! man_word_alloc(m, line, offs, "")) |
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return(0); |
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goto descope; |
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} |
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/* |
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* Warn if the last un-escaped character is whitespace. Then |
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* strip away the remaining spaces (tabs stay!). |
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*/ |
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i = (int)strlen(buf); |
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assert(i); |
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if (' ' == buf[i - 1] || '\t' == buf[i - 1]) { |
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if (i > 1 && '\\' != buf[i - 2]) |
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if ( ! man_pmsg(m, line, i - 1, MANDOCERR_EOLNSPACE)) |
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return(0); |
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for (--i; i && ' ' == buf[i]; i--) |
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/* Spin back to non-space. */ ; |
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/* Jump ahead of escaped whitespace. */ |
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i += '\\' == buf[i] ? 2 : 1; |
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buf[i] = '\0'; |
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} |
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if ( ! man_word_alloc(m, line, offs, buf + offs)) |
return(0); |
return(0); |
m->next = MAN_NEXT_SIBLING; |
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/* |
/* |
* If this is one of the zany NLINE macros that consumes the |
* End-of-sentence check. If the last character is an unescaped |
* next line of input as being influenced, then close out the |
* EOS character, then flag the node as being the end of a |
* existing macro "scope" and continue processing. |
* sentence. The front-end will know how to interpret this. |
*/ |
*/ |
|
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if ( ! (MAN_NLINE & m->flags)) |
assert(i); |
return(1); |
if (mandoc_eos(buf, (size_t)i, 0)) |
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m->last->flags |= MAN_EOS; |
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m->flags &= ~MAN_NLINE; |
descope: |
m->last = m->last->parent; |
/* |
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* Co-ordinate what happens with having a next-line scope open: |
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* first close out the element scope (if applicable), then close |
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* out the block scope (also if applicable). |
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*/ |
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assert(MAN_ROOT != m->last->type); |
if (MAN_ELINE & m->flags) { |
if ( ! man_valid_post(m)) |
m->flags &= ~MAN_ELINE; |
return(0); |
if ( ! man_unscope(m, m->last->parent, MANDOCERR_MAX)) |
if ( ! man_action_post(m)) |
return(0); |
return(0); |
} |
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return(1); |
if ( ! (MAN_BLINE & m->flags)) |
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return(1); |
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m->flags &= ~MAN_BLINE; |
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if ( ! man_unscope(m, m->last->parent, MANDOCERR_MAX)) |
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return(0); |
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return(man_body_alloc(m, line, offs, m->last->tok)); |
} |
} |
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int |
int |
man_pmacro(struct man *m, int ln, char *buf) |
man_pmacro(struct man *m, int ln, char *buf, int offs) |
{ |
{ |
int i, j, c, ppos, fl; |
int i, j, ppos; |
char mac[5]; |
enum mant tok; |
struct man_node *n; |
char mac[5]; |
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struct man_node *n; |
|
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/* Comments and empties are quickly ignored. */ |
/* Comments and empties are quickly ignored. */ |
|
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n = m->last; |
offs++; |
fl = MAN_NLINE & m->flags; |
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|
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if (0 == buf[1]) |
if ('\0' == buf[offs]) |
goto out; |
return(1); |
|
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i = 1; |
i = offs; |
|
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if (' ' == buf[i]) { |
/* |
|
* Skip whitespace between the control character and initial |
|
* text. "Whitespace" is both spaces and tabs. |
|
*/ |
|
|
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if (' ' == buf[i] || '\t' == buf[i]) { |
i++; |
i++; |
while (buf[i] && ' ' == buf[i]) |
while (buf[i] && (' ' == buf[i] || '\t' == buf[i])) |
i++; |
i++; |
if (0 == buf[i]) |
if ('\0' == buf[i]) |
goto out; |
goto out; |
} |
} |
|
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ppos = i; |
ppos = i; |
|
|
/* Copy the first word into a nil-terminated buffer. */ |
/* |
|
* Copy the first word into a nil-terminated buffer. |
|
* Stop copying when a tab, space, or eoln is encountered. |
|
*/ |
|
|
for (j = 0; j < 4; j++, i++) { |
j = 0; |
if (0 == (mac[j] = buf[i])) |
while (j < 4 && '\0' != buf[i] && ' ' != buf[i] && '\t' != buf[i]) |
break; |
mac[j++] = buf[i++]; |
else if (' ' == buf[i]) |
mac[j] = '\0'; |
break; |
|
} |
|
|
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mac[j] = 0; |
tok = (j > 0 && j < 4) ? man_hash_find(mac) : MAN_MAX; |
|
if (MAN_MAX == tok) { |
if (j == 4 || j < 1) { |
man_vmsg(m, MANDOCERR_MACRO, ln, ppos, "%s", buf + ppos - 1); |
if ( ! (MAN_IGN_MACRO & m->pflags)) { |
|
(void)man_verr(m, ln, ppos, |
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"ill-formed macro: %s", mac); |
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goto err; |
|
} |
|
if ( ! man_vwarn(m, ln, ppos, |
|
"ill-formed macro: %s", mac)) |
|
goto err; |
|
return(1); |
return(1); |
} |
} |
|
|
if (MAN_MAX == (c = man_hash_find(m->htab, mac))) { |
|
if ( ! (MAN_IGN_MACRO & m->pflags)) { |
|
(void)man_verr(m, ln, ppos, |
|
"unknown macro: %s", mac); |
|
goto err; |
|
} |
|
if ( ! man_vwarn(m, ln, ppos, |
|
"unknown macro: %s", mac)) |
|
goto err; |
|
return(1); |
|
} |
|
|
|
/* The macro is sane. Jump to the next word. */ |
/* The macro is sane. Jump to the next word. */ |
|
|
while (buf[i] && ' ' == buf[i]) |
while (buf[i] && ' ' == buf[i]) |
i++; |
i++; |
|
|
/* Begin recursive parse sequence. */ |
/* |
|
* Trailing whitespace. Note that tabs are allowed to be passed |
|
* into the parser as "text", so we only warn about spaces here. |
|
*/ |
|
|
if ( ! man_macro(m, c, ln, ppos, &i, buf)) |
if ('\0' == buf[i] && ' ' == buf[i - 1]) |
|
if ( ! man_pmsg(m, ln, i - 1, MANDOCERR_EOLNSPACE)) |
|
goto err; |
|
|
|
/* |
|
* Remove prior ELINE macro, as it's being clobbered by a new |
|
* macro. Note that NSCOPED macros do not close out ELINE |
|
* macros---they don't print text---so we let those slip by. |
|
*/ |
|
|
|
if ( ! (MAN_NSCOPED & man_macros[tok].flags) && |
|
m->flags & MAN_ELINE) { |
|
n = m->last; |
|
assert(MAN_TEXT != n->type); |
|
|
|
/* Remove repeated NSCOPED macros causing ELINE. */ |
|
|
|
if (MAN_NSCOPED & man_macros[n->tok].flags) |
|
n = n->parent; |
|
|
|
man_vmsg(m, MANDOCERR_LINESCOPE, n->line, n->pos, |
|
"%s", man_macronames[n->tok]); |
|
|
|
man_node_delete(m, n); |
|
m->flags &= ~MAN_ELINE; |
|
} |
|
|
|
/* |
|
* Save the fact that we're in the next-line for a block. In |
|
* this way, embedded roff instructions can "remember" state |
|
* when they exit. |
|
*/ |
|
|
|
if (MAN_BLINE & m->flags) |
|
m->flags |= MAN_BPLINE; |
|
|
|
/* Call to handler... */ |
|
|
|
assert(man_macros[tok].fp); |
|
if ( ! (*man_macros[tok].fp)(m, tok, ln, ppos, &i, buf)) |
goto err; |
goto err; |
|
|
out: |
out: |
if (fl) { |
/* |
/* |
* We weren't in a block-line scope when entering the |
* A NLINE macro has been immediately followed with |
* above-parsed macro, so return. |
* another. Close out the preceding macro's scope, and |
*/ |
* continue. |
|
*/ |
|
assert(MAN_ROOT != m->last->type); |
|
assert(m->last->parent); |
|
assert(MAN_ROOT != m->last->parent->type); |
|
|
|
if (n != m->last) |
if ( ! (MAN_BPLINE & m->flags)) { |
m->last = m->last->parent; |
m->flags &= ~MAN_ILINE; |
|
return(1); |
|
} |
|
m->flags &= ~MAN_BPLINE; |
|
|
if ( ! man_valid_post(m)) |
/* |
return(0); |
* If we're in a block scope, then allow this macro to slip by |
if ( ! man_action_post(m)) |
* without closing scope around it. |
return(0); |
*/ |
m->next = MAN_NEXT_SIBLING; |
|
m->flags &= ~MAN_NLINE; |
|
} |
|
|
|
return(1); |
if (MAN_ILINE & m->flags) { |
|
m->flags &= ~MAN_ILINE; |
|
return(1); |
|
} |
|
|
|
/* |
|
* If we've opened a new next-line element scope, then return |
|
* now, as the next line will close out the block scope. |
|
*/ |
|
|
|
if (MAN_ELINE & m->flags) |
|
return(1); |
|
|
|
/* Close out the block scope opened in the prior line. */ |
|
|
|
assert(MAN_BLINE & m->flags); |
|
m->flags &= ~MAN_BLINE; |
|
|
|
if ( ! man_unscope(m, m->last->parent, MANDOCERR_MAX)) |
|
return(0); |
|
return(man_body_alloc(m, ln, offs, m->last->tok)); |
|
|
err: /* Error out. */ |
err: /* Error out. */ |
|
|
m->flags |= MAN_HALT; |
m->flags |= MAN_HALT; |
Line 401 err: /* Error out. */ |
|
Line 576 err: /* Error out. */ |
|
|
|
|
|
int |
int |
man_verr(struct man *man, int ln, int pos, const char *fmt, ...) |
man_vmsg(struct man *man, enum mandocerr t, |
|
int ln, int pos, const char *fmt, ...) |
{ |
{ |
char buf[256]; |
char buf[256]; |
va_list ap; |
va_list ap; |
|
|
if (NULL == man->cb.man_err) |
|
return(0); |
|
|
|
va_start(ap, fmt); |
va_start(ap, fmt); |
(void)vsnprintf(buf, sizeof(buf) - 1, fmt, ap); |
vsnprintf(buf, sizeof(buf) - 1, fmt, ap); |
va_end(ap); |
va_end(ap); |
return((*man->cb.man_err)(man->data, ln, pos, buf)); |
return((*man->msg)(t, man->data, ln, pos, buf)); |
} |
} |
|
|
|
|
int |
/* |
man_vwarn(struct man *man, int ln, int pos, const char *fmt, ...) |
* Unlink a node from its context. If "m" is provided, the last parse |
|
* point will also be adjusted accordingly. |
|
*/ |
|
static void |
|
man_node_unlink(struct man *m, struct man_node *n) |
{ |
{ |
char buf[256]; |
|
va_list ap; |
|
|
|
if (NULL == man->cb.man_warn) |
/* Adjust siblings. */ |
return(0); |
|
|
|
va_start(ap, fmt); |
if (n->prev) |
(void)vsnprintf(buf, sizeof(buf) - 1, fmt, ap); |
n->prev->next = n->next; |
va_end(ap); |
if (n->next) |
return((*man->cb.man_warn)(man->data, ln, pos, buf)); |
n->next->prev = n->prev; |
} |
|
|
|
|
/* Adjust parent. */ |
|
|
|
if (n->parent) { |
|
n->parent->nchild--; |
|
if (n->parent->child == n) |
|
n->parent->child = n->prev ? n->prev : n->next; |
|
} |
|
|
|
/* Adjust parse point, if applicable. */ |
|
|
|
if (m && m->last == n) { |
|
/*XXX: this can occur when bailing from validation. */ |
|
/*assert(NULL == n->next);*/ |
|
if (n->prev) { |
|
m->last = n->prev; |
|
m->next = MAN_NEXT_SIBLING; |
|
} else { |
|
m->last = n->parent; |
|
m->next = MAN_NEXT_CHILD; |
|
} |
|
} |
|
|
|
if (m && m->first == n) |
|
m->first = NULL; |
|
} |