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version 1.58, 2010/03/29 04:52:14 | version 1.120, 2013/10/17 20:54:58 | ||
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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> | ||
* | * | ||
* 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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#include <sys/types.h> | #include <sys/types.h> | ||
#include <assert.h> | #include <assert.h> | ||
#include <ctype.h> | |||
#include <stdarg.h> | #include <stdarg.h> | ||
#include <stdlib.h> | #include <stdlib.h> | ||
#include <stdio.h> | #include <stdio.h> | ||
#include <string.h> | #include <string.h> | ||
#include "man.h" | |||
#include "mandoc.h" | |||
#include "libman.h" | #include "libman.h" | ||
#include "libmandoc.h" | #include "libmandoc.h" | ||
const char *const __man_merrnames[WERRMAX] = { | |||
"invalid character", /* WNPRINT */ | |||
"invalid manual section", /* WMSEC */ | |||
"invalid date format", /* WDATE */ | |||
"scope of prior line violated", /* WLNSCOPE */ | |||
"over-zealous prior line scope violation", /* WLNSCOPE2 */ | |||
"trailing whitespace", /* WTSPACE */ | |||
"unterminated quoted parameter", /* WTQUOTE */ | |||
"document has no body", /* WNODATA */ | |||
"document has no title/section", /* WNOTITLE */ | |||
"invalid escape sequence", /* WESCAPE */ | |||
"invalid number format", /* WNUMFMT */ | |||
"expected block head arguments", /* WHEADARGS */ | |||
"expected block body arguments", /* WBODYARGS */ | |||
"expected empty block head", /* WNHEADARGS */ | |||
"ill-formed macro", /* WMACROFORM */ | |||
"scope open on exit", /* WEXITSCOPE */ | |||
"no scope context", /* WNOSCOPE */ | |||
"literal context already open", /* WOLITERAL */ | |||
"no literal context open", /* WNLITERAL */ | |||
"invalid nesting of roff declarations", /* WROFFNEST */ | |||
"scope in roff instructions broken", /* WROFFSCOPE */ | |||
"document title should be uppercase", /* WTITLECASE */ | |||
}; | |||
const char *const __man_macronames[MAN_MAX] = { | const char *const __man_macronames[MAN_MAX] = { | ||
"br", "TH", "SH", "SS", | "br", "TH", "SH", "SS", | ||
"TP", "LP", "PP", "P", | "TP", "LP", "PP", "P", | ||
"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", "sp", | "RI", "na", "sp", "nf", | ||
"nf", "fi", "r", "RE", | "fi", "RE", "RS", "DT", | ||
"RS", "DT", "UC", "PD", | "UC", "PD", "AT", "in", | ||
"Sp", "Vb", "Ve", "de", | "ft", "OP", "EX", "EE", | ||
"dei", "am", "ami", "ig", | "UR", "UE" | ||
".", | |||
}; | }; | ||
const char * const *man_macronames = __man_macronames; | const char * const *man_macronames = __man_macronames; | ||
static struct man_node *man_node_alloc(int, int, | static struct man_node *man_node_alloc(struct man *, int, int, | ||
enum man_type, enum mant); | 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 void man_node_free(struct man_node *); | static void man_node_free(struct man_node *); | ||
static void man_node_unlink(struct man *, | static void man_node_unlink(struct man *, | ||
struct man_node *); | struct man_node *); | ||
static int man_ptext(struct man *, int, char *); | static int man_ptext(struct man *, int, char *, int); | ||
static int man_pmacro(struct man *, int, char *); | static int man_pmacro(struct man *, int, char *, int); | ||
static void man_free1(struct man *); | static void man_free1(struct man *); | ||
static void man_alloc1(struct man *); | static void man_alloc1(struct man *); | ||
static int pstring(struct man *, int, int, | static int man_descope(struct man *, int, int); | ||
const char *, size_t); | |||
static int macrowarn(struct man *, int, const char *); | |||
const struct man_node * | const struct man_node * | ||
man_node(const struct man *m) | man_node(const struct man *man) | ||
{ | { | ||
return(MAN_HALT & m->flags ? NULL : m->first); | assert( ! (MAN_HALT & man->flags)); | ||
return(man->first); | |||
} | } | ||
const struct man_meta * | const struct man_meta * | ||
man_meta(const struct man *m) | man_meta(const struct man *man) | ||
{ | { | ||
return(MAN_HALT & m->flags ? NULL : &m->meta); | assert( ! (MAN_HALT & man->flags)); | ||
return(&man->meta); | |||
} | } | ||
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struct man * | struct man * | ||
man_alloc(void *data, int pflags, const struct man_cb *cb) | man_alloc(struct roff *roff, struct mparse *parse) | ||
{ | { | ||
struct man *p; | struct man *p; | ||
p = mandoc_calloc(1, sizeof(struct man)); | p = mandoc_calloc(1, sizeof(struct man)); | ||
if (cb) | |||
memcpy(&p->cb, cb, sizeof(struct man_cb)); | |||
man_hash_init(); | man_hash_init(); | ||
p->data = data; | p->parse = parse; | ||
p->pflags = pflags; | p->roff = roff; | ||
man_alloc1(p); | man_alloc1(p); | ||
return(p); | return(p); | ||
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int | int | ||
man_endparse(struct man *m) | man_endparse(struct man *man) | ||
{ | { | ||
if (MAN_HALT & m->flags) | assert( ! (MAN_HALT & man->flags)); | ||
return(0); | if (man_macroend(man)) | ||
else if (man_macroend(m)) | |||
return(1); | return(1); | ||
m->flags |= MAN_HALT; | man->flags |= MAN_HALT; | ||
return(0); | return(0); | ||
} | } | ||
int | int | ||
man_parseln(struct man *m, int ln, char *buf) | man_parseln(struct man *man, int ln, char *buf, int offs) | ||
{ | { | ||
return('.' == *buf || '\'' == *buf ? | man->flags |= MAN_NEWLINE; | ||
man_pmacro(m, ln, buf) : | |||
man_ptext(m, ln, buf)); | assert( ! (MAN_HALT & man->flags)); | ||
return (roff_getcontrol(man->roff, buf, &offs) ? | |||
man_pmacro(man, ln, buf, offs) : | |||
man_ptext(man, ln, buf, offs)); | |||
} | } | ||
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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.date) | |||
free(man->meta.date); | |||
if (man->meta.vol) | if (man->meta.vol) | ||
free(man->meta.vol); | free(man->meta.vol); | ||
if (man->meta.msec) | |||
free(man->meta.msec); | |||
} | } | ||
static void | static void | ||
man_alloc1(struct man *m) | man_alloc1(struct man *man) | ||
{ | { | ||
memset(&m->meta, 0, sizeof(struct man_meta)); | memset(&man->meta, 0, sizeof(struct man_meta)); | ||
m->flags = 0; | man->flags = 0; | ||
m->last = mandoc_calloc(1, sizeof(struct man_node)); | man->last = mandoc_calloc(1, sizeof(struct man_node)); | ||
m->first = m->last; | man->first = man->last; | ||
m->last->type = MAN_ROOT; | man->last->type = MAN_ROOT; | ||
m->last->tok = MAN_MAX; | man->last->tok = MAN_MAX; | ||
m->next = MAN_NEXT_CHILD; | man->next = MAN_NEXT_CHILD; | ||
} | } | ||
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assert(MAN_BLOCK == p->parent->type); | assert(MAN_BLOCK == p->parent->type); | ||
p->parent->head = p; | p->parent->head = p; | ||
break; | break; | ||
case (MAN_TAIL): | |||
assert(MAN_BLOCK == p->parent->type); | |||
p->parent->tail = p; | |||
break; | |||
case (MAN_BODY): | case (MAN_BODY): | ||
assert(MAN_BLOCK == p->parent->type); | assert(MAN_BLOCK == p->parent->type); | ||
p->parent->body = p; | p->parent->body = p; | ||
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man->last = p; | man->last = p; | ||
switch (p->type) { | switch (p->type) { | ||
case (MAN_TBL): | |||
/* FALLTHROUGH */ | |||
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; | ||
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static struct man_node * | static struct man_node * | ||
man_node_alloc(int line, int pos, enum man_type type, enum mant tok) | man_node_alloc(struct man *man, int line, int pos, | ||
enum man_type type, enum mant tok) | |||
{ | { | ||
struct man_node *p; | struct man_node *p; | ||
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p->pos = pos; | p->pos = pos; | ||
p->type = type; | p->type = type; | ||
p->tok = tok; | p->tok = tok; | ||
if (MAN_NEWLINE & man->flags) | |||
p->flags |= MAN_LINE; | |||
man->flags &= ~MAN_NEWLINE; | |||
return(p); | return(p); | ||
} | } | ||
int | int | ||
man_elem_alloc(struct man *m, int line, int pos, enum mant tok) | man_elem_alloc(struct man *man, int line, int pos, enum mant tok) | ||
{ | { | ||
struct man_node *p; | struct man_node *p; | ||
p = man_node_alloc(line, pos, MAN_ELEM, tok); | p = man_node_alloc(man, line, pos, MAN_ELEM, tok); | ||
if ( ! man_node_append(m, p)) | if ( ! man_node_append(man, p)) | ||
return(0); | return(0); | ||
m->next = MAN_NEXT_CHILD; | man->next = MAN_NEXT_CHILD; | ||
return(1); | return(1); | ||
} | } | ||
int | int | ||
man_head_alloc(struct man *m, int line, int pos, enum mant tok) | man_tail_alloc(struct man *man, int line, int pos, enum mant tok) | ||
{ | { | ||
struct man_node *p; | struct man_node *p; | ||
p = man_node_alloc(line, pos, MAN_HEAD, tok); | p = man_node_alloc(man, line, pos, MAN_TAIL, tok); | ||
if ( ! man_node_append(m, p)) | if ( ! man_node_append(man, p)) | ||
return(0); | return(0); | ||
m->next = MAN_NEXT_CHILD; | man->next = MAN_NEXT_CHILD; | ||
return(1); | return(1); | ||
} | } | ||
int | int | ||
man_body_alloc(struct man *m, int line, int pos, enum mant tok) | man_head_alloc(struct man *man, int line, int pos, enum mant tok) | ||
{ | { | ||
struct man_node *p; | struct man_node *p; | ||
p = man_node_alloc(line, pos, MAN_BODY, tok); | p = man_node_alloc(man, line, pos, MAN_HEAD, tok); | ||
if ( ! man_node_append(m, p)) | if ( ! man_node_append(man, p)) | ||
return(0); | return(0); | ||
m->next = MAN_NEXT_CHILD; | man->next = MAN_NEXT_CHILD; | ||
return(1); | return(1); | ||
} | } | ||
int | int | ||
man_block_alloc(struct man *m, int line, int pos, enum mant tok) | man_body_alloc(struct man *man, int line, int pos, enum mant tok) | ||
{ | { | ||
struct man_node *p; | struct man_node *p; | ||
p = man_node_alloc(line, pos, MAN_BLOCK, tok); | p = man_node_alloc(man, line, pos, MAN_BODY, tok); | ||
if ( ! man_node_append(m, p)) | if ( ! man_node_append(man, p)) | ||
return(0); | return(0); | ||
m->next = MAN_NEXT_CHILD; | man->next = MAN_NEXT_CHILD; | ||
return(1); | return(1); | ||
} | } | ||
static int | int | ||
pstring(struct man *m, int line, int pos, | man_block_alloc(struct man *man, int line, int pos, enum mant tok) | ||
const char *p, size_t len) | |||
{ | { | ||
struct man_node *n; | struct man_node *p; | ||
size_t sv; | |||
n = man_node_alloc(line, pos, MAN_TEXT, MAN_MAX); | p = man_node_alloc(man, line, pos, MAN_BLOCK, tok); | ||
n->string = mandoc_malloc(len + 1); | if ( ! man_node_append(man, p)) | ||
sv = strlcpy(n->string, p, len + 1); | |||
/* Prohibit truncation. */ | |||
assert(sv < len + 1); | |||
if ( ! man_node_append(m, n)) | |||
return(0); | return(0); | ||
m->next = MAN_NEXT_SIBLING; | man->next = MAN_NEXT_CHILD; | ||
return(1); | return(1); | ||
} | } | ||
int | int | ||
man_word_alloc(struct man *m, int line, int pos, const char *word) | man_word_alloc(struct man *man, int line, int pos, const char *word) | ||
{ | { | ||
struct man_node *n; | |||
return(pstring(m, line, pos, word, strlen(word))); | n = man_node_alloc(man, line, pos, MAN_TEXT, MAN_MAX); | ||
n->string = roff_strdup(man->roff, word); | |||
if ( ! man_node_append(man, n)) | |||
return(0); | |||
man->next = MAN_NEXT_SIBLING; | |||
return(1); | |||
} | } | ||
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void | void | ||
man_node_delete(struct man *m, struct man_node *p) | man_node_delete(struct man *man, struct man_node *p) | ||
{ | { | ||
while (p->child) | while (p->child) | ||
man_node_delete(m, p->child); | man_node_delete(man, p->child); | ||
man_node_unlink(m, p); | man_node_unlink(man, p); | ||
man_node_free(p); | man_node_free(p); | ||
} | } | ||
int | |||
man_addeqn(struct man *man, const struct eqn *ep) | |||
{ | |||
struct man_node *n; | |||
static int | assert( ! (MAN_HALT & man->flags)); | ||
man_ptext(struct man *m, int line, char *buf) | |||
n = man_node_alloc(man, ep->ln, ep->pos, MAN_EQN, MAN_MAX); | |||
n->eqn = ep; | |||
if ( ! man_node_append(man, n)) | |||
return(0); | |||
man->next = MAN_NEXT_SIBLING; | |||
return(man_descope(man, ep->ln, ep->pos)); | |||
} | |||
int | |||
man_addspan(struct man *man, const struct tbl_span *sp) | |||
{ | { | ||
int i, j; | struct man_node *n; | ||
char sv; | |||
/* Literal free-form text whitespace is preserved. */ | assert( ! (MAN_HALT & man->flags)); | ||
if (MAN_LITERAL & m->flags) { | n = man_node_alloc(man, sp->line, 0, MAN_TBL, MAN_MAX); | ||
if ( ! man_word_alloc(m, line, 0, buf)) | n->span = sp; | ||
return(0); | |||
goto descope; | |||
} | |||
/* First de-chunk and allocate words. */ | if ( ! man_node_append(man, n)) | ||
return(0); | |||
for (i = 0; ' ' == buf[i]; i++) | man->next = MAN_NEXT_SIBLING; | ||
/* Skip leading whitespace. */ ; | return(man_descope(man, sp->line, 0)); | ||
} | |||
if ('\0' == buf[i]) { | static int | ||
/* Trailing whitespace? */ | man_descope(struct man *man, int line, int offs) | ||
if (i && ' ' == buf[i - 1]) | { | ||
if ( ! man_pwarn(m, line, i - 1, WTSPACE)) | /* | ||
return(0); | * Co-ordinate what happens with having a next-line scope open: | ||
if ( ! pstring(m, line, 0, &buf[i], 0)) | * first close out the element scope (if applicable), then close | ||
* out the block scope (also if applicable). | |||
*/ | |||
if (MAN_ELINE & man->flags) { | |||
man->flags &= ~MAN_ELINE; | |||
if ( ! man_unscope(man, man->last->parent, MANDOCERR_MAX)) | |||
return(0); | return(0); | ||
goto descope; | |||
} | } | ||
for (j = i; buf[i]; i++) { | if ( ! (MAN_BLINE & man->flags)) | ||
if (' ' != buf[i]) | return(1); | ||
continue; | man->flags &= ~MAN_BLINE; | ||
/* Escaped whitespace. */ | if ( ! man_unscope(man, man->last->parent, MANDOCERR_MAX)) | ||
if (i && ' ' == buf[i] && '\\' == buf[i - 1]) | return(0); | ||
continue; | return(man_body_alloc(man, line, offs, man->last->tok)); | ||
} | |||
sv = buf[i]; | static int | ||
buf[i++] = '\0'; | man_ptext(struct man *man, int line, char *buf, int offs) | ||
{ | |||
int i; | |||
if ( ! pstring(m, line, j, &buf[j], (size_t)(i - j))) | /* Literal free-form text whitespace is preserved. */ | ||
if (MAN_LITERAL & man->flags) { | |||
if ( ! man_word_alloc(man, line, offs, buf + offs)) | |||
return(0); | return(0); | ||
return(man_descope(man, line, offs)); | |||
} | |||
/* Trailing whitespace? Check at overwritten byte. */ | /* Pump blank lines directly into the backend. */ | ||
if (' ' == sv && '\0' == buf[i]) | for (i = offs; ' ' == buf[i]; i++) | ||
if ( ! man_pwarn(m, line, i - 1, WTSPACE)) | /* Skip leading whitespace. */ ; | ||
return(0); | |||
for ( ; ' ' == buf[i]; i++) | if ('\0' == buf[i]) { | ||
/* Skip trailing whitespace. */ ; | /* Allocate a blank entry. */ | ||
if ( ! man_elem_alloc(man, line, offs, MAN_sp)) | |||
return(0); | |||
man->next = MAN_NEXT_SIBLING; | |||
return(1); | |||
} | |||
j = i; | /* | ||
* Warn if the last un-escaped character is whitespace. Then | |||
* strip away the remaining spaces (tabs stay!). | |||
*/ | |||
/* Trailing whitespace? */ | i = (int)strlen(buf); | ||
assert(i); | |||
if (' ' == buf[i - 1] && '\0' == buf[i]) | if (' ' == buf[i - 1] || '\t' == buf[i - 1]) { | ||
if ( ! man_pwarn(m, line, i - 1, WTSPACE)) | if (i > 1 && '\\' != buf[i - 2]) | ||
return(0); | man_pmsg(man, line, i - 1, MANDOCERR_EOLNSPACE); | ||
if ('\0' == buf[i]) | for (--i; i && ' ' == buf[i]; i--) | ||
break; | /* Spin back to non-space. */ ; | ||
/* Jump ahead of escaped whitespace. */ | |||
i += '\\' == buf[i] ? 2 : 1; | |||
buf[i] = '\0'; | |||
} | } | ||
if (j != i && ! pstring(m, line, j, &buf[j], (size_t)(i - j))) | if ( ! man_word_alloc(man, line, offs, buf + offs)) | ||
return(0); | return(0); | ||
descope: | |||
/* | /* | ||
* Co-ordinate what happens with having a next-line scope open: | * End-of-sentence check. If the last character is an unescaped | ||
* first close out the element scope (if applicable), then close | * EOS character, then flag the node as being the end of a | ||
* out the block scope (also if applicable). | * sentence. The front-end will know how to interpret this. | ||
*/ | */ | ||
if (MAN_ELINE & m->flags) { | assert(i); | ||
m->flags &= ~MAN_ELINE; | if (mandoc_eos(buf, (size_t)i, 0)) | ||
if ( ! man_unscope(m, m->last->parent, WERRMAX)) | man->last->flags |= MAN_EOS; | ||
return(0); | |||
} | |||
if ( ! (MAN_BLINE & m->flags)) | return(man_descope(man, line, offs)); | ||
return(1); | |||
m->flags &= ~MAN_BLINE; | |||
if ( ! man_unscope(m, m->last->parent, WERRMAX)) | |||
return(0); | |||
return(man_body_alloc(m, line, 0, m->last->tok)); | |||
} | } | ||
static int | static int | ||
macrowarn(struct man *m, int ln, const char *buf) | man_pmacro(struct man *man, int ln, char *buf, int offs) | ||
{ | { | ||
if ( ! (MAN_IGN_MACRO & m->pflags)) | int i, ppos; | ||
return(man_verr(m, ln, 0, | |||
"unknown macro: %s%s", | |||
buf, strlen(buf) > 3 ? "..." : "")); | |||
return(man_vwarn(m, ln, 0, "unknown macro: %s%s", | |||
buf, strlen(buf) > 3 ? "..." : "")); | |||
} | |||
int | |||
man_pmacro(struct man *m, int ln, char *buf) | |||
{ | |||
int i, j, ppos; | |||
enum mant tok; | enum mant tok; | ||
char mac[5]; | char mac[5]; | ||
struct man_node *n; | struct man_node *n; | ||
/* Comments and empties are quickly ignored. */ | if ('"' == buf[offs]) { | ||
man_pmsg(man, ln, offs, MANDOCERR_BADCOMMENT); | |||
if (MAN_BLINE & m->flags) | |||
m->flags |= MAN_BPLINE; | |||
if ('\0' == buf[1]) | |||
return(1); | return(1); | ||
} else if ('\0' == buf[offs]) | |||
return(1); | |||
i = 1; | ppos = offs; | ||
/* | /* | ||
* Skip whitespace between the control character and initial | * Copy the first word into a nil-terminated buffer. | ||
* text. "Whitespace" is both spaces and tabs. | * Stop copying when a tab, space, or eoln is encountered. | ||
*/ | */ | ||
if (' ' == buf[i] || '\t' == buf[i]) { | |||
i++; | |||
while (buf[i] && (' ' == buf[i] || '\t' == buf[i])) | |||
i++; | |||
if ('\0' == buf[i]) | |||
goto out; | |||
} | |||
ppos = i; | i = 0; | ||
while (i < 4 && '\0' != buf[offs] && | |||
' ' != buf[offs] && '\t' != buf[offs]) | |||
mac[i++] = buf[offs++]; | |||
/* Copy the first word into a nil-terminated buffer. */ | mac[i] = '\0'; | ||
for (j = 0; j < 4; j++, i++) { | tok = (i > 0 && i < 4) ? man_hash_find(mac) : MAN_MAX; | ||
if ('\0' == (mac[j] = buf[i])) | |||
break; | |||
else if (' ' == buf[i]) | |||
break; | |||
/* Check for invalid characters. */ | if (MAN_MAX == tok) { | ||
mandoc_vmsg(MANDOCERR_MACRO, man->parse, ln, | |||
if (isgraph((u_char)buf[i])) | ppos, "%s", buf + ppos - 1); | ||
continue; | |||
return(man_perr(m, ln, i, WNPRINT)); | |||
} | |||
mac[j] = '\0'; | |||
if (j == 4 || j < 1) { | |||
if ( ! (MAN_IGN_MACRO & m->pflags)) { | |||
(void)man_perr(m, ln, ppos, WMACROFORM); | |||
goto err; | |||
} | |||
if ( ! man_pwarn(m, ln, ppos, WMACROFORM)) | |||
goto err; | |||
return(1); | return(1); | ||
} | } | ||
if (MAN_MAX == (tok = man_hash_find(mac))) { | |||
if ( ! macrowarn(m, ln, 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[offs] && ' ' == buf[offs]) | ||
i++; | offs++; | ||
/* Trailing whitespace? */ | /* | ||
* 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[i] && ' ' == buf[i - 1]) | if ('\0' == buf[offs] && ' ' == buf[offs - 1]) | ||
if ( ! man_pwarn(m, ln, i - 1, WTSPACE)) | man_pmsg(man, ln, offs - 1, MANDOCERR_EOLNSPACE); | ||
goto err; | |||
/* | /* | ||
* Remove prior ELINE macro, as it's being clobbering by a new | * Remove prior ELINE macro, as it's being clobbered by a new | ||
* macro. Note that NSCOPED macros do not close out ELINE | * macro. Note that NSCOPED macros do not close out ELINE | ||
* macros---they don't print text---so we let those slip by. | * macros---they don't print text---so we let those slip by. | ||
*/ | */ | ||
if ( ! (MAN_NSCOPED & man_macros[tok].flags) && | if ( ! (MAN_NSCOPED & man_macros[tok].flags) && | ||
m->flags & MAN_ELINE) { | man->flags & MAN_ELINE) { | ||
assert(MAN_TEXT != m->last->type); | n = man->last; | ||
assert(MAN_TEXT != n->type); | |||
/* | /* Remove repeated NSCOPED macros causing ELINE. */ | ||
* This occurs in the following construction: | |||
* .B | if (MAN_NSCOPED & man_macros[n->tok].flags) | ||
* .br | n = n->parent; | ||
* .B | |||
* .br | mandoc_vmsg(MANDOCERR_LINESCOPE, man->parse, n->line, | ||
* I hate man macros. | n->pos, "%s breaks %s", man_macronames[tok], | ||
* Flat-out disallow this madness. | man_macronames[n->tok]); | ||
man_node_delete(man, n); | |||
man->flags &= ~MAN_ELINE; | |||
} | |||
/* | |||
* Remove prior BLINE macro that is being clobbered. | |||
*/ | |||
if ((man->flags & MAN_BLINE) && | |||
(MAN_BSCOPE & man_macros[tok].flags)) { | |||
n = man->last; | |||
/* Might be a text node like 8 in | |||
* .TP 8 | |||
* .SH foo | |||
*/ | */ | ||
if (MAN_NSCOPED & man_macros[m->last->tok].flags) | if (MAN_TEXT == n->type) | ||
return(man_perr(m, ln, ppos, WLNSCOPE)); | n = n->parent; | ||
n = m->last; | /* Remove element that didn't end BLINE, if any. */ | ||
if ( ! (MAN_BSCOPE & man_macros[n->tok].flags)) | |||
n = n->parent; | |||
assert(n); | assert(MAN_HEAD == n->type); | ||
assert(NULL == n->child); | n = n->parent; | ||
assert(0 == n->nchild); | assert(MAN_BLOCK == n->type); | ||
assert(MAN_SCOPED & man_macros[n->tok].flags); | |||
if ( ! man_nwarn(m, n, WLNSCOPE)) | mandoc_vmsg(MANDOCERR_LINESCOPE, man->parse, n->line, | ||
return(0); | n->pos, "%s breaks %s", man_macronames[tok], | ||
man_macronames[n->tok]); | |||
man_node_delete(m, n); | man_node_delete(man, n); | ||
m->flags &= ~MAN_ELINE; | man->flags &= ~MAN_BLINE; | ||
} | } | ||
/* Begin recursive parse sequence. */ | /* | ||
* 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. | |||
*/ | |||
assert(man_macros[tok].fp); | if (MAN_BLINE & man->flags) | ||
man->flags |= MAN_BPLINE; | |||
if ( ! (*man_macros[tok].fp)(m, tok, ln, ppos, &i, buf)) | /* Call to handler... */ | ||
assert(man_macros[tok].fp); | |||
if ( ! (*man_macros[tok].fp)(man, tok, ln, ppos, &offs, buf)) | |||
goto err; | goto err; | ||
out: | |||
/* | /* | ||
* We weren't in a block-line scope when entering the | * We weren't in a block-line scope when entering the | ||
* above-parsed macro, so return. | * above-parsed macro, so return. | ||
* | |||
* FIXME: this prohibits the nesting of blocks (e.g., `de' and | |||
* family) within BLINE or ELINE systems. This is annoying. | |||
*/ | */ | ||
if ( ! (MAN_BPLINE & m->flags)) { | if ( ! (MAN_BPLINE & man->flags)) { | ||
m->flags &= ~MAN_ILINE; | man->flags &= ~MAN_ILINE; | ||
return(1); | return(1); | ||
} | } | ||
m->flags &= ~MAN_BPLINE; | man->flags &= ~MAN_BPLINE; | ||
/* | /* | ||
* If we're in a block scope, then allow this macro to slip by | * If we're in a block scope, then allow this macro to slip by | ||
* without closing scope around it. | * without closing scope around it. | ||
*/ | */ | ||
if (MAN_ILINE & m->flags) { | if (MAN_ILINE & man->flags) { | ||
m->flags &= ~MAN_ILINE; | man->flags &= ~MAN_ILINE; | ||
return(1); | return(1); | ||
} | } | ||
|
|
||
* now, as the next line will close out the block scope. | * now, as the next line will close out the block scope. | ||
*/ | */ | ||
if (MAN_ELINE & m->flags) | if (MAN_ELINE & man->flags) | ||
return(1); | return(1); | ||
/* Close out the block scope opened in the prior line. */ | /* Close out the block scope opened in the prior line. */ | ||
assert(MAN_BLINE & m->flags); | assert(MAN_BLINE & man->flags); | ||
m->flags &= ~MAN_BLINE; | man->flags &= ~MAN_BLINE; | ||
if ( ! man_unscope(m, m->last->parent, WERRMAX)) | if ( ! man_unscope(man, man->last->parent, MANDOCERR_MAX)) | ||
return(0); | return(0); | ||
return(man_body_alloc(m, ln, 0, m->last->tok)); | return(man_body_alloc(man, ln, ppos, man->last->tok)); | ||
err: /* Error out. */ | err: /* Error out. */ | ||
m->flags |= MAN_HALT; | man->flags |= MAN_HALT; | ||
return(0); | return(0); | ||
} | } | ||
int | |||
man_verr(struct man *man, int ln, int pos, const char *fmt, ...) | |||
{ | |||
char buf[256]; | |||
va_list ap; | |||
if (NULL == man->cb.man_err) | |||
return(0); | |||
va_start(ap, fmt); | |||
(void)vsnprintf(buf, sizeof(buf) - 1, fmt, ap); | |||
va_end(ap); | |||
return((*man->cb.man_err)(man->data, ln, pos, buf)); | |||
} | |||
int | |||
man_vwarn(struct man *man, int ln, int pos, const char *fmt, ...) | |||
{ | |||
char buf[256]; | |||
va_list ap; | |||
if (NULL == man->cb.man_warn) | |||
return(0); | |||
va_start(ap, fmt); | |||
(void)vsnprintf(buf, sizeof(buf) - 1, fmt, ap); | |||
va_end(ap); | |||
return((*man->cb.man_warn)(man->data, ln, pos, buf)); | |||
} | |||
int | |||
man_err(struct man *m, int line, int pos, int iserr, enum merr type) | |||
{ | |||
const char *p; | |||
p = __man_merrnames[(int)type]; | |||
assert(p); | |||
if (iserr) | |||
return(man_verr(m, line, pos, p)); | |||
return(man_vwarn(m, line, pos, p)); | |||
} | |||
/* | /* | ||
* Unlink a node from its context. If "m" is provided, the last parse | * Unlink a node from its context. If "man" is provided, the last parse | ||
* point will also be adjusted accordingly. | * point will also be adjusted accordingly. | ||
*/ | */ | ||
static void | static void | ||
man_node_unlink(struct man *m, struct man_node *n) | man_node_unlink(struct man *man, struct man_node *n) | ||
{ | { | ||
/* Adjust siblings. */ | /* Adjust siblings. */ | ||
|
|
||
/* Adjust parse point, if applicable. */ | /* Adjust parse point, if applicable. */ | ||
if (m && m->last == n) { | if (man && man->last == n) { | ||
/*XXX: this can occur when bailing from validation. */ | /*XXX: this can occur when bailing from validation. */ | ||
/*assert(NULL == n->next);*/ | /*assert(NULL == n->next);*/ | ||
if (n->prev) { | if (n->prev) { | ||
m->last = n->prev; | man->last = n->prev; | ||
m->next = MAN_NEXT_SIBLING; | man->next = MAN_NEXT_SIBLING; | ||
} else { | } else { | ||
m->last = n->parent; | man->last = n->parent; | ||
m->next = MAN_NEXT_CHILD; | man->next = MAN_NEXT_CHILD; | ||
} | } | ||
} | } | ||
if (m && m->first == n) | if (man && man->first == n) | ||
m->first = NULL; | man->first = NULL; | ||
} | |||
const struct mparse * | |||
man_mparse(const struct man *man) | |||
{ | |||
assert(man && man->parse); | |||
return(man->parse); | |||
} | } |