Return to html.c CVS log | Up to [cvsweb.bsd.lv] / mandoc |
version 1.68, 2009/10/28 05:08:17 | version 1.142, 2011/05/17 11:34:31 | ||
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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> | ||
* Copyright (c) 2011 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 | ||
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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. | ||
*/ | */ | ||
#ifdef HAVE_CONFIG_H | |||
#include "config.h" | |||
#endif | |||
#include <sys/types.h> | #include <sys/types.h> | ||
#include <assert.h> | #include <assert.h> | ||
#include <ctype.h> | #include <ctype.h> | ||
#include <err.h> | |||
#include <stdio.h> | |||
#include <stdarg.h> | #include <stdarg.h> | ||
#include <stdio.h> | |||
#include <stdint.h> | #include <stdint.h> | ||
#include <stdlib.h> | #include <stdlib.h> | ||
#include <string.h> | #include <string.h> | ||
#include <unistd.h> | #include <unistd.h> | ||
#include "mandoc.h" | |||
#include "libmandoc.h" | |||
#include "out.h" | #include "out.h" | ||
#include "chars.h" | |||
#include "html.h" | #include "html.h" | ||
#include "main.h" | #include "main.h" | ||
#define UNCONST(a) ((void *)(uintptr_t)(const void *)(a)) | |||
#define DOCTYPE "-//W3C//DTD HTML 4.01//EN" | |||
#define DTD "http://www.w3.org/TR/html4/strict.dtd" | |||
struct htmldata { | struct htmldata { | ||
const char *name; | const char *name; | ||
int flags; | int flags; | ||
#define HTML_CLRLINE (1 << 0) | #define HTML_CLRLINE (1 << 0) | ||
#define HTML_NOSTACK (1 << 1) | #define HTML_NOSTACK (1 << 1) | ||
#define HTML_AUTOCLOSE (1 << 2) /* Tag has auto-closure. */ | |||
}; | }; | ||
static const struct htmldata htmltags[TAG_MAX] = { | static const struct htmldata htmltags[TAG_MAX] = { | ||
{"html", HTML_CLRLINE}, /* TAG_HTML */ | {"html", HTML_CLRLINE}, /* TAG_HTML */ | ||
{"head", HTML_CLRLINE}, /* TAG_HEAD */ | {"head", HTML_CLRLINE}, /* TAG_HEAD */ | ||
{"body", HTML_CLRLINE}, /* TAG_BODY */ | {"body", HTML_CLRLINE}, /* TAG_BODY */ | ||
{"meta", HTML_CLRLINE | HTML_NOSTACK}, /* TAG_META */ | {"meta", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_META */ | ||
{"title", HTML_CLRLINE}, /* TAG_TITLE */ | {"title", HTML_CLRLINE}, /* TAG_TITLE */ | ||
{"div", HTML_CLRLINE}, /* TAG_DIV */ | {"div", HTML_CLRLINE}, /* TAG_DIV */ | ||
{"h1", 0}, /* TAG_H1 */ | {"h1", 0}, /* TAG_H1 */ | ||
{"h2", 0}, /* TAG_H2 */ | {"h2", 0}, /* TAG_H2 */ | ||
{"p", HTML_CLRLINE}, /* TAG_P */ | |||
{"span", 0}, /* TAG_SPAN */ | {"span", 0}, /* TAG_SPAN */ | ||
{"link", HTML_CLRLINE | HTML_NOSTACK}, /* TAG_LINK */ | {"link", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_LINK */ | ||
{"br", HTML_CLRLINE | HTML_NOSTACK}, /* TAG_LINK */ | {"br", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_BR */ | ||
{"a", 0}, /* TAG_A */ | {"a", 0}, /* TAG_A */ | ||
{"table", HTML_CLRLINE}, /* TAG_TABLE */ | {"table", HTML_CLRLINE}, /* TAG_TABLE */ | ||
{"col", HTML_CLRLINE | HTML_NOSTACK}, /* TAG_COL */ | {"tbody", HTML_CLRLINE}, /* TAG_TBODY */ | ||
{"col", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_COL */ | |||
{"tr", HTML_CLRLINE}, /* TAG_TR */ | {"tr", HTML_CLRLINE}, /* TAG_TR */ | ||
{"td", HTML_CLRLINE}, /* TAG_TD */ | {"td", HTML_CLRLINE}, /* TAG_TD */ | ||
{"li", HTML_CLRLINE}, /* TAG_LI */ | {"li", HTML_CLRLINE}, /* TAG_LI */ | ||
{"ul", HTML_CLRLINE}, /* TAG_UL */ | {"ul", HTML_CLRLINE}, /* TAG_UL */ | ||
{"ol", HTML_CLRLINE}, /* TAG_OL */ | {"ol", HTML_CLRLINE}, /* TAG_OL */ | ||
{"base", HTML_CLRLINE | HTML_NOSTACK}, /* TAG_BASE */ | {"dl", HTML_CLRLINE}, /* TAG_DL */ | ||
{"dt", HTML_CLRLINE}, /* TAG_DT */ | |||
{"dd", HTML_CLRLINE}, /* TAG_DD */ | |||
{"blockquote", HTML_CLRLINE}, /* TAG_BLOCKQUOTE */ | |||
{"p", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_P */ | |||
{"pre", HTML_CLRLINE }, /* TAG_PRE */ | |||
{"b", 0 }, /* TAG_B */ | |||
{"i", 0 }, /* TAG_I */ | |||
{"code", 0 }, /* TAG_CODE */ | |||
{"small", 0 }, /* TAG_SMALL */ | |||
}; | }; | ||
static const char *const htmlattrs[ATTR_MAX] = { | static const char *const htmlattrs[ATTR_MAX] = { | ||
"http-equiv", | "http-equiv", /* ATTR_HTTPEQUIV */ | ||
"content", | "content", /* ATTR_CONTENT */ | ||
"name", | "name", /* ATTR_NAME */ | ||
"rel", | "rel", /* ATTR_REL */ | ||
"href", | "href", /* ATTR_HREF */ | ||
"type", | "type", /* ATTR_TYPE */ | ||
"media", | "media", /* ATTR_MEDIA */ | ||
"class", | "class", /* ATTR_CLASS */ | ||
"style", | "style", /* ATTR_STYLE */ | ||
"width", | "width", /* ATTR_WIDTH */ | ||
"valign", | "id", /* ATTR_ID */ | ||
"target", | "summary", /* ATTR_SUMMARY */ | ||
"id", | "align", /* ATTR_ALIGN */ | ||
"summary", | "colspan", /* ATTR_COLSPAN */ | ||
}; | }; | ||
#ifdef __linux__ | static const char *const roffscales[SCALE_MAX] = { | ||
extern int getsubopt(char **, char * const *, char **); | "cm", /* SCALE_CM */ | ||
#endif | "in", /* SCALE_IN */ | ||
"pc", /* SCALE_PC */ | |||
"pt", /* SCALE_PT */ | |||
"em", /* SCALE_EM */ | |||
"em", /* SCALE_MM */ | |||
"ex", /* SCALE_EN */ | |||
"ex", /* SCALE_BU */ | |||
"em", /* SCALE_VS */ | |||
"ex", /* SCALE_FS */ | |||
}; | |||
void * | static void bufncat(struct html *, const char *, size_t); | ||
html_alloc(char *outopts) | static void print_spec(struct html *, const char *, size_t); | ||
static void print_res(struct html *, const char *, size_t); | |||
static void print_ctag(struct html *, enum htmltag); | |||
static int print_encode(struct html *, const char *, int); | |||
static void print_metaf(struct html *, enum mandoc_esc); | |||
static void print_attr(struct html *, const char *, const char *); | |||
static void *ml_alloc(char *, enum htmltype); | |||
static void * | |||
ml_alloc(char *outopts, enum htmltype type) | |||
{ | { | ||
struct html *h; | struct html *h; | ||
const char *toks[4]; | const char *toks[4]; | ||
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toks[2] = "includes"; | toks[2] = "includes"; | ||
toks[3] = NULL; | toks[3] = NULL; | ||
if (NULL == (h = calloc(1, sizeof(struct html)))) | h = mandoc_calloc(1, sizeof(struct html)); | ||
return(NULL); | |||
h->type = type; | |||
h->tags.head = NULL; | h->tags.head = NULL; | ||
h->ords.head = NULL; | h->symtab = mchars_alloc(); | ||
if (NULL == (h->symtab = chars_init(CHARS_HTML))) { | |||
free(h); | |||
return(NULL); | |||
} | |||
while (outopts && *outopts) | while (outopts && *outopts) | ||
switch (getsubopt(&outopts, UNCONST(toks), &v)) { | switch (getsubopt(&outopts, UNCONST(toks), &v)) { | ||
case (0): | case (0): | ||
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return(h); | return(h); | ||
} | } | ||
void * | |||
html_alloc(char *outopts) | |||
{ | |||
return(ml_alloc(outopts, HTML_HTML_4_01_STRICT)); | |||
} | |||
void * | |||
xhtml_alloc(char *outopts) | |||
{ | |||
return(ml_alloc(outopts, HTML_XHTML_1_0_STRICT)); | |||
} | |||
void | void | ||
html_free(void *p) | html_free(void *p) | ||
{ | { | ||
struct tag *tag; | struct tag *tag; | ||
struct ord *ord; | |||
struct html *h; | struct html *h; | ||
h = (struct html *)p; | h = (struct html *)p; | ||
while ((ord = h->ords.head) != NULL) { | |||
h->ords.head = ord->next; | |||
free(ord); | |||
} | |||
while ((tag = h->tags.head) != NULL) { | while ((tag = h->tags.head) != NULL) { | ||
h->tags.head = tag->next; | h->tags.head = tag->next; | ||
free(tag); | free(tag); | ||
} | } | ||
if (h->symtab) | if (h->symtab) | ||
chars_free(h->symtab); | mchars_free(h->symtab); | ||
free(h); | free(h); | ||
} | } | ||
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} | } | ||
} | } | ||
static void | static void | ||
print_spec(struct html *h, const char *p, int len) | print_spec(struct html *h, const char *p, size_t len) | ||
{ | { | ||
int cp; | |||
const char *rhs; | const char *rhs; | ||
int i; | |||
size_t sz; | size_t sz; | ||
rhs = chars_a2ascii(h->symtab, p, (size_t)len, &sz); | if ((cp = mchars_spec2cp(h->symtab, p, len)) > 0) { | ||
printf("&#%d;", cp); | |||
if (NULL == rhs) | |||
return; | return; | ||
for (i = 0; i < (int)sz; i++) | } else if (-1 == cp && 1 == len) { | ||
putchar(rhs[i]); | fwrite(p, 1, len, stdout); | ||
return; | |||
} else if (-1 == cp) | |||
return; | |||
if (NULL != (rhs = mchars_spec2str(h->symtab, p, len, &sz))) | |||
fwrite(rhs, 1, sz, stdout); | |||
} | } | ||
static void | static void | ||
print_res(struct html *h, const char *p, int len) | print_res(struct html *h, const char *p, size_t len) | ||
{ | { | ||
int cp; | |||
const char *rhs; | const char *rhs; | ||
int i; | |||
size_t sz; | size_t sz; | ||
rhs = chars_a2res(h->symtab, p, (size_t)len, &sz); | if ((cp = mchars_res2cp(h->symtab, p, len)) > 0) { | ||
printf("&#%d;", cp); | |||
if (NULL == rhs) | |||
return; | return; | ||
for (i = 0; i < (int)sz; i++) | } else if (-1 == cp) | ||
putchar(rhs[i]); | return; | ||
if (NULL != (rhs = mchars_res2str(h->symtab, p, len, &sz))) | |||
fwrite(rhs, 1, sz, stdout); | |||
} | } | ||
static void | static void | ||
print_escape(struct html *h, const char **p) | print_metaf(struct html *h, enum mandoc_esc deco) | ||
{ | { | ||
int j, type; | enum htmlfont font; | ||
const char *wp; | |||
wp = *p; | switch (deco) { | ||
type = 1; | case (ESCAPE_FONTPREV): | ||
font = h->metal; | |||
break; | |||
case (ESCAPE_FONTITALIC): | |||
font = HTMLFONT_ITALIC; | |||
break; | |||
case (ESCAPE_FONTBOLD): | |||
font = HTMLFONT_BOLD; | |||
break; | |||
case (ESCAPE_FONTROMAN): | |||
font = HTMLFONT_NONE; | |||
break; | |||
default: | |||
abort(); | |||
/* NOTREACHED */ | |||
} | |||
if (0 == *(++wp)) { | if (h->metaf) { | ||
*p = wp; | print_tagq(h, h->metaf); | ||
return; | h->metaf = NULL; | ||
} | } | ||
if ('(' == *wp) { | h->metal = h->metac; | ||
wp++; | h->metac = font; | ||
if (0 == *wp || 0 == *(wp + 1)) { | |||
*p = 0 == *wp ? wp : wp + 1; | |||
return; | |||
} | |||
print_spec(h, wp, 2); | if (HTMLFONT_NONE != font) | ||
*p = ++wp; | h->metaf = HTMLFONT_BOLD == font ? | ||
return; | print_otag(h, TAG_B, 0, NULL) : | ||
print_otag(h, TAG_I, 0, NULL); | |||
} | |||
} else if ('*' == *wp) { | int | ||
if (0 == *(++wp)) { | html_strlen(const char *cp) | ||
*p = wp; | { | ||
return; | int ssz, sz; | ||
} | const char *seq, *p; | ||
switch (*wp) { | /* | ||
case ('('): | * Account for escaped sequences within string length | ||
wp++; | * calculations. This follows the logic in term_strlen() as we | ||
if (0 == *wp || 0 == *(wp + 1)) { | * must calculate the width of produced strings. | ||
*p = 0 == *wp ? wp : wp + 1; | * Assume that characters are always width of "1". This is | ||
return; | * hacky, but it gets the job done for approximation of widths. | ||
} | */ | ||
print_res(h, wp, 2); | sz = 0; | ||
*p = ++wp; | while (NULL != (p = strchr(cp, '\\'))) { | ||
return; | sz += (int)(p - cp); | ||
case ('['): | ++cp; | ||
type = 0; | switch (mandoc_escape(&cp, &seq, &ssz)) { | ||
break; | case (ESCAPE_ERROR): | ||
default: | return(sz); | ||
print_res(h, wp, 1); | case (ESCAPE_NUMBERED): | ||
*p = wp; | |||
return; | |||
} | |||
} else if ('f' == *wp) { | |||
if (0 == *(++wp)) { | |||
*p = wp; | |||
return; | |||
} | |||
switch (*wp) { | |||
case ('B'): | |||
/* TODO */ | |||
break; | |||
case ('I'): | |||
/* TODO */ | |||
break; | |||
case ('P'): | |||
/* FALLTHROUGH */ | /* FALLTHROUGH */ | ||
case ('R'): | case (ESCAPE_PREDEF): | ||
/* TODO */ | /* FALLTHROUGH */ | ||
case (ESCAPE_SPECIAL): | |||
sz++; | |||
break; | break; | ||
default: | default: | ||
break; | break; | ||
} | } | ||
*p = wp; | |||
return; | |||
} else if ('[' != *wp) { | |||
print_spec(h, wp, 1); | |||
*p = wp; | |||
return; | |||
} | } | ||
wp++; | assert(sz >= 0); | ||
for (j = 0; *wp && ']' != *wp; wp++, j++) | return(sz + strlen(cp)); | ||
/* Loop... */ ; | } | ||
if (0 == *wp) { | static int | ||
*p = wp; | print_encode(struct html *h, const char *p, int norecurse) | ||
return; | { | ||
} | size_t sz; | ||
int c, len, nospace; | |||
const char *seq; | |||
enum mandoc_esc esc; | |||
static const char rejs[6] = { '\\', '<', '>', '&', ASCII_HYPH, '\0' }; | |||
if (type) | nospace = 0; | ||
print_spec(h, wp - j, j); | |||
else | |||
print_res(h, wp - j, j); | |||
*p = wp; | while ('\0' != *p) { | ||
} | sz = strcspn(p, rejs); | ||
fwrite(p, 1, sz, stdout); | |||
p += (int)sz; | |||
static void | if ('\0' == *p) | ||
print_encode(struct html *h, const char *p) | break; | ||
{ | |||
for (; *p; p++) { | switch (*p++) { | ||
if ('\\' == *p) { | |||
print_escape(h, &p); | |||
continue; | |||
} | |||
switch (*p) { | |||
case ('<'): | case ('<'): | ||
printf("<"); | printf("<"); | ||
break; | continue; | ||
case ('>'): | case ('>'): | ||
printf(">"); | printf(">"); | ||
break; | continue; | ||
case ('&'): | case ('&'): | ||
printf("&"); | printf("&"); | ||
continue; | |||
case (ASCII_HYPH): | |||
putchar('-'); | |||
continue; | |||
default: | |||
break; | break; | ||
} | |||
esc = mandoc_escape(&p, &seq, &len); | |||
if (ESCAPE_ERROR == esc) | |||
break; | |||
switch (esc) { | |||
case (ESCAPE_NUMBERED): | |||
c = mchars_num2char(seq, len); | |||
if ('\0' != c) | |||
putchar(c); | |||
break; | |||
case (ESCAPE_PREDEF): | |||
print_res(h, seq, len); | |||
break; | |||
case (ESCAPE_SPECIAL): | |||
print_spec(h, seq, len); | |||
break; | |||
case (ESCAPE_FONTPREV): | |||
/* FALLTHROUGH */ | |||
case (ESCAPE_FONTBOLD): | |||
/* FALLTHROUGH */ | |||
case (ESCAPE_FONTITALIC): | |||
/* FALLTHROUGH */ | |||
case (ESCAPE_FONTROMAN): | |||
if (norecurse) | |||
break; | |||
print_metaf(h, esc); | |||
break; | |||
case (ESCAPE_NOSPACE): | |||
if ('\0' == *p) | |||
nospace = 1; | |||
break; | |||
default: | default: | ||
putchar(*p); | |||
break; | break; | ||
} | } | ||
} | } | ||
return(nospace); | |||
} | } | ||
static void | |||
print_attr(struct html *h, const char *key, const char *val) | |||
{ | |||
printf(" %s=\"", key); | |||
(void)print_encode(h, val, 1); | |||
putchar('\"'); | |||
} | |||
struct tag * | struct tag * | ||
print_otag(struct html *h, enum htmltag tag, | print_otag(struct html *h, enum htmltag tag, | ||
int sz, const struct htmlpair *p) | int sz, const struct htmlpair *p) | ||
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int i; | int i; | ||
struct tag *t; | struct tag *t; | ||
/* Push this tags onto the stack of open scopes. */ | |||
if ( ! (HTML_NOSTACK & htmltags[tag].flags)) { | if ( ! (HTML_NOSTACK & htmltags[tag].flags)) { | ||
if (NULL == (t = malloc(sizeof(struct tag)))) | t = mandoc_malloc(sizeof(struct tag)); | ||
err(EXIT_FAILURE, "malloc"); | |||
t->tag = tag; | t->tag = tag; | ||
t->next = h->tags.head; | t->next = h->tags.head; | ||
h->tags.head = t; | h->tags.head = t; | ||
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t = NULL; | t = NULL; | ||
if ( ! (HTML_NOSPACE & h->flags)) | if ( ! (HTML_NOSPACE & h->flags)) | ||
if ( ! (HTML_CLRLINE & htmltags[tag].flags)) | if ( ! (HTML_CLRLINE & htmltags[tag].flags)) { | ||
printf(" "); | /* Manage keeps! */ | ||
if ( ! (HTML_KEEP & h->flags)) { | |||
if (HTML_PREKEEP & h->flags) | |||
h->flags |= HTML_KEEP; | |||
putchar(' '); | |||
} else | |||
printf(" "); | |||
} | |||
if ( ! (h->flags & HTML_NONOSPACE)) | |||
h->flags &= ~HTML_NOSPACE; | |||
else | |||
h->flags |= HTML_NOSPACE; | |||
/* Print out the tag name and attributes. */ | |||
printf("<%s", htmltags[tag].name); | printf("<%s", htmltags[tag].name); | ||
for (i = 0; i < sz; i++) { | for (i = 0; i < sz; i++) | ||
printf(" %s=\"", htmlattrs[p[i].key]); | print_attr(h, htmlattrs[p[i].key], p[i].val); | ||
assert(p->val); | |||
print_encode(h, p[i].val); | /* Add non-overridable attributes. */ | ||
printf("\""); | |||
if (TAG_HTML == tag && HTML_XHTML_1_0_STRICT == h->type) { | |||
print_attr(h, "xmlns", "http://www.w3.org/1999/xhtml"); | |||
print_attr(h, "xml:lang", "en"); | |||
print_attr(h, "lang", "en"); | |||
} | } | ||
printf(">"); | |||
/* Accommodate for XML "well-formed" singleton escaping. */ | |||
if (HTML_AUTOCLOSE & htmltags[tag].flags) | |||
switch (h->type) { | |||
case (HTML_XHTML_1_0_STRICT): | |||
putchar('/'); | |||
break; | |||
default: | |||
break; | |||
} | |||
putchar('>'); | |||
h->flags |= HTML_NOSPACE; | h->flags |= HTML_NOSPACE; | ||
if (HTML_CLRLINE & htmltags[tag].flags) | |||
h->flags |= HTML_NEWLINE; | |||
else | |||
h->flags &= ~HTML_NEWLINE; | |||
if ((HTML_AUTOCLOSE | HTML_CLRLINE) & htmltags[tag].flags) | |||
putchar('\n'); | |||
return(t); | return(t); | ||
} | } | ||
/* ARGSUSED */ | |||
static void | static void | ||
print_ctag(struct html *h, enum htmltag tag) | print_ctag(struct html *h, enum htmltag tag) | ||
{ | { | ||
printf("</%s>", htmltags[tag].name); | printf("</%s>", htmltags[tag].name); | ||
if (HTML_CLRLINE & htmltags[tag].flags) | if (HTML_CLRLINE & htmltags[tag].flags) { | ||
h->flags |= HTML_NOSPACE; | h->flags |= HTML_NOSPACE; | ||
if (HTML_CLRLINE & htmltags[tag].flags) | putchar('\n'); | ||
h->flags |= HTML_NEWLINE; | } | ||
else | |||
h->flags &= ~HTML_NEWLINE; | |||
} | } | ||
/* ARGSUSED */ | |||
void | void | ||
print_gen_doctype(struct html *h) | print_gen_decls(struct html *h) | ||
{ | { | ||
const char *doctype; | |||
printf("<!DOCTYPE HTML PUBLIC \"%s\" \"%s\">", DOCTYPE, DTD); | const char *dtd; | ||
} | const char *name; | ||
switch (h->type) { | |||
case (HTML_HTML_4_01_STRICT): | |||
name = "HTML"; | |||
doctype = "-//W3C//DTD HTML 4.01//EN"; | |||
dtd = "http://www.w3.org/TR/html4/strict.dtd"; | |||
break; | |||
default: | |||
puts("<?xml version=\"1.0\" encoding=\"UTF-8\"?>"); | |||
name = "html"; | |||
doctype = "-//W3C//DTD XHTML 1.0 Strict//EN"; | |||
dtd = "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"; | |||
break; | |||
} | |||
printf("<!DOCTYPE %s PUBLIC \"%s\" \"%s\">\n", | |||
name, doctype, dtd); | |||
} | |||
void | void | ||
print_text(struct html *h, const char *p) | print_text(struct html *h, const char *word) | ||
{ | { | ||
if (*p && 0 == *(p + 1)) | if ( ! (HTML_NOSPACE & h->flags)) { | ||
switch (*p) { | /* Manage keeps! */ | ||
case('.'): | if ( ! (HTML_KEEP & h->flags)) { | ||
/* FALLTHROUGH */ | if (HTML_PREKEEP & h->flags) | ||
case(','): | h->flags |= HTML_KEEP; | ||
/* FALLTHROUGH */ | putchar(' '); | ||
case(';'): | } else | ||
/* FALLTHROUGH */ | printf(" "); | ||
case(':'): | } | ||
/* FALLTHROUGH */ | |||
case('?'): | |||
/* FALLTHROUGH */ | |||
case('!'): | |||
/* FALLTHROUGH */ | |||
case(')'): | |||
/* FALLTHROUGH */ | |||
case(']'): | |||
/* FALLTHROUGH */ | |||
case('}'): | |||
if ( ! (HTML_IGNDELIM & h->flags)) | |||
h->flags |= HTML_NOSPACE; | |||
break; | |||
default: | |||
break; | |||
} | |||
if ( ! (h->flags & HTML_NOSPACE)) | assert(NULL == h->metaf); | ||
printf(" "); | if (HTMLFONT_NONE != h->metac) | ||
h->metaf = HTMLFONT_BOLD == h->metac ? | |||
print_otag(h, TAG_B, 0, NULL) : | |||
print_otag(h, TAG_I, 0, NULL); | |||
h->flags &= ~HTML_NOSPACE; | assert(word); | ||
h->flags &= ~HTML_NEWLINE; | if ( ! print_encode(h, word, 0)) | ||
if ( ! (h->flags & HTML_NONOSPACE)) | |||
h->flags &= ~HTML_NOSPACE; | |||
if (p) | if (h->metaf) { | ||
print_encode(h, p); | print_tagq(h, h->metaf); | ||
h->metaf = NULL; | |||
} | |||
if (*p && 0 == *(p + 1)) | h->flags &= ~HTML_IGNDELIM; | ||
switch (*p) { | |||
case('('): | |||
/* FALLTHROUGH */ | |||
case('['): | |||
/* FALLTHROUGH */ | |||
case('{'): | |||
h->flags |= HTML_NOSPACE; | |||
break; | |||
default: | |||
break; | |||
} | |||
} | } | ||
|
|
||
struct tag *tag; | struct tag *tag; | ||
while ((tag = h->tags.head) != NULL) { | while ((tag = h->tags.head) != NULL) { | ||
/* | |||
* Remember to close out and nullify the current | |||
* meta-font and table, if applicable. | |||
*/ | |||
if (tag == h->metaf) | |||
h->metaf = NULL; | |||
if (tag == h->tblt) | |||
h->tblt = NULL; | |||
print_ctag(h, tag->tag); | print_ctag(h, tag->tag); | ||
h->tags.head = tag->next; | h->tags.head = tag->next; | ||
free(tag); | free(tag); | ||
|
|
||
while ((tag = h->tags.head) != NULL) { | while ((tag = h->tags.head) != NULL) { | ||
if (suntil && tag == suntil) | if (suntil && tag == suntil) | ||
return; | return; | ||
/* | |||
* Remember to close out and nullify the current | |||
* meta-font and table, if applicable. | |||
*/ | |||
if (tag == h->metaf) | |||
h->metaf = NULL; | |||
if (tag == h->tblt) | |||
h->tblt = NULL; | |||
print_ctag(h, tag->tag); | print_ctag(h, tag->tag); | ||
h->tags.head = tag->next; | h->tags.head = tag->next; | ||
free(tag); | free(tag); | ||
} | } | ||
} | } | ||
void | void | ||
bufinit(struct html *h) | bufinit(struct html *h) | ||
{ | { | ||
|
|
||
h->buflen = 0; | h->buflen = 0; | ||
} | } | ||
void | void | ||
bufcat_style(struct html *h, const char *key, const char *val) | bufcat_style(struct html *h, const char *key, const char *val) | ||
{ | { | ||
bufcat(h, key); | bufcat(h, key); | ||
bufncat(h, ":", 1); | bufcat(h, ":"); | ||
bufcat(h, val); | bufcat(h, val); | ||
bufncat(h, ";", 1); | bufcat(h, ";"); | ||
} | } | ||
void | void | ||
bufcat(struct html *h, const char *p) | bufcat(struct html *h, const char *p) | ||
{ | { | ||
bufncat(h, p, strlen(p)); | h->buflen = strlcat(h->buf, p, BUFSIZ); | ||
assert(h->buflen < BUFSIZ); | |||
h->buflen--; | |||
} | } | ||
void | void | ||
buffmt(struct html *h, const char *fmt, ...) | bufcat_fmt(struct html *h, const char *fmt, ...) | ||
{ | { | ||
va_list ap; | va_list ap; | ||
|
|
||
h->buflen = strlen(h->buf); | h->buflen = strlen(h->buf); | ||
} | } | ||
static void | |||
void | |||
bufncat(struct html *h, const char *p, size_t sz) | bufncat(struct html *h, const char *p, size_t sz) | ||
{ | { | ||
if (h->buflen + sz > BUFSIZ - 1) | assert(h->buflen + sz + 1 < BUFSIZ); | ||
sz = BUFSIZ - 1 - h->buflen; | strncat(h->buf, p, sz); | ||
(void)strncat(h->buf, p, sz); | |||
h->buflen += sz; | h->buflen += sz; | ||
} | } | ||
void | void | ||
buffmt_includes(struct html *h, const char *name) | buffmt_includes(struct html *h, const char *name) | ||
{ | { | ||
|
|
||
bufcat(h, pp); | bufcat(h, pp); | ||
} | } | ||
void | void | ||
buffmt_man(struct html *h, | buffmt_man(struct html *h, | ||
const char *name, const char *sec) | const char *name, const char *sec) | ||
|
|
||
bufcat(h, sec ? sec : "1"); | bufcat(h, sec ? sec : "1"); | ||
break; | break; | ||
case('N'): | case('N'): | ||
buffmt(h, name); | bufcat_fmt(h, name); | ||
break; | break; | ||
default: | default: | ||
bufncat(h, p, 2); | bufncat(h, p, 2); | ||
|
|
||
bufcat(h, pp); | bufcat(h, pp); | ||
} | } | ||
void | void | ||
bufcat_su(struct html *h, const char *p, const struct roffsu *su) | bufcat_su(struct html *h, const char *p, const struct roffsu *su) | ||
{ | { | ||
double v; | double v; | ||
const char *u; | |||
v = su->scale; | v = su->scale; | ||
if (SCALE_MM == su->unit && 0.0 == (v /= 100.0)) | |||
v = 1.0; | |||
switch (su->unit) { | bufcat_fmt(h, "%s: %.2f%s;", p, v, roffscales[su->unit]); | ||
case (SCALE_CM): | |||
u = "cm"; | |||
break; | |||
case (SCALE_IN): | |||
u = "in"; | |||
break; | |||
case (SCALE_PC): | |||
u = "pc"; | |||
break; | |||
case (SCALE_PT): | |||
u = "pt"; | |||
break; | |||
case (SCALE_EM): | |||
u = "em"; | |||
break; | |||
case (SCALE_MM): | |||
if (0 == (v /= 100)) | |||
v = 1; | |||
u = "em"; | |||
break; | |||
case (SCALE_EN): | |||
u = "ex"; | |||
break; | |||
case (SCALE_BU): | |||
u = "ex"; | |||
break; | |||
case (SCALE_VS): | |||
u = "em"; | |||
break; | |||
default: | |||
u = "ex"; | |||
break; | |||
} | |||
if (su->pt) | |||
buffmt(h, "%s: %f%s;", p, v, u); | |||
else | |||
/* LINTED */ | |||
buffmt(h, "%s: %d%s;", p, (int)v, u); | |||
} | } | ||
void | void | ||
html_idcpy(char *dst, const char *src, int sz) | bufcat_id(struct html *h, const char *src) | ||
{ | { | ||
assert(sz); | |||
dst[0] = '\0'; | |||
html_idcat(dst, src, sz); | |||
} | |||
void | |||
html_idcat(char *dst, const char *src, int sz) | |||
{ | |||
int i; | |||
/* Cf. <http://www.w3.org/TR/html4/types.html#h-6.2>. */ | /* Cf. <http://www.w3.org/TR/html4/types.html#h-6.2>. */ | ||
for (i = 0; *dst != '\0' && i < sz - 1; dst++, i++) | if (0 == h->buflen) | ||
/* Jump to end. */ ; | bufcat(h, "#x"); | ||
while ('\0' != *src) | |||
for ( ; *src != '\0' && i < sz - 1; src++, i++) { | bufcat_fmt(h, "%.2x", *src++); | ||
if (isalnum((u_char)*src)) { | |||
*dst++ = *src; | |||
continue; | |||
} | |||
switch (*src) { | |||
case (';'): | |||
*dst++ = ';'; | |||
break; | |||
case ('-'): | |||
*dst++ = '-'; | |||
break; | |||
case (':'): | |||
*dst++ = ':'; | |||
break; | |||
case ('_'): | |||
/* FALLTHROUGH */ | |||
default: | |||
*dst++ = '_'; | |||
break; | |||
} | |||
} | |||
*dst = '\0'; | |||
} | } |