version 1.1, 2008/12/03 14:39:59 |
version 1.140, 2011/05/17 10:48:06 |
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/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se> |
* Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> |
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* 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 |
* purpose with or without fee is hereby granted, provided that the above |
* above copyright notice and this permission notice appear in all |
* copyright notice and this permission notice appear in all copies. |
* copies. |
|
* |
* |
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
* PERFORMANCE OF THIS SOFTWARE. |
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*/ |
*/ |
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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> |
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#include <ctype.h> |
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#include <stdarg.h> |
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#include <stdio.h> |
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#include <stdint.h> |
#include <stdlib.h> |
#include <stdlib.h> |
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#include <string.h> |
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#include <unistd.h> |
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#include "libmdocml.h" |
#include "mandoc.h" |
#include "private.h" |
#include "libmandoc.h" |
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#include "out.h" |
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#include "html.h" |
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#include "main.h" |
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struct htmldata { |
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const char *name; |
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int flags; |
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#define HTML_CLRLINE (1 << 0) |
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#define HTML_NOSTACK (1 << 1) |
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#define HTML_AUTOCLOSE (1 << 2) /* Tag has auto-closure. */ |
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}; |
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/* ARGSUSED */ |
static const struct htmldata htmltags[TAG_MAX] = { |
int |
{"html", HTML_CLRLINE}, /* TAG_HTML */ |
md_line_html(void *data, char *buf) |
{"head", HTML_CLRLINE}, /* TAG_HEAD */ |
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{"body", HTML_CLRLINE}, /* TAG_BODY */ |
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{"meta", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_META */ |
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{"title", HTML_CLRLINE}, /* TAG_TITLE */ |
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{"div", HTML_CLRLINE}, /* TAG_DIV */ |
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{"h1", 0}, /* TAG_H1 */ |
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{"h2", 0}, /* TAG_H2 */ |
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{"span", 0}, /* TAG_SPAN */ |
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{"link", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_LINK */ |
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{"br", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_BR */ |
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{"a", 0}, /* TAG_A */ |
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{"table", HTML_CLRLINE}, /* TAG_TABLE */ |
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{"tbody", HTML_CLRLINE}, /* TAG_TBODY */ |
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{"col", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_COL */ |
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{"tr", HTML_CLRLINE}, /* TAG_TR */ |
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{"td", HTML_CLRLINE}, /* TAG_TD */ |
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{"li", HTML_CLRLINE}, /* TAG_LI */ |
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{"ul", HTML_CLRLINE}, /* TAG_UL */ |
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{"ol", HTML_CLRLINE}, /* TAG_OL */ |
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{"dl", HTML_CLRLINE}, /* TAG_DL */ |
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{"dt", HTML_CLRLINE}, /* TAG_DT */ |
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{"dd", HTML_CLRLINE}, /* TAG_DD */ |
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{"blockquote", HTML_CLRLINE}, /* TAG_BLOCKQUOTE */ |
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{"p", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_P */ |
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{"pre", HTML_CLRLINE }, /* TAG_PRE */ |
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{"b", 0 }, /* TAG_B */ |
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{"i", 0 }, /* TAG_I */ |
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{"code", 0 }, /* TAG_CODE */ |
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{"small", 0 }, /* TAG_SMALL */ |
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}; |
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static const char *const htmlattrs[ATTR_MAX] = { |
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"http-equiv", /* ATTR_HTTPEQUIV */ |
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"content", /* ATTR_CONTENT */ |
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"name", /* ATTR_NAME */ |
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"rel", /* ATTR_REL */ |
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"href", /* ATTR_HREF */ |
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"type", /* ATTR_TYPE */ |
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"media", /* ATTR_MEDIA */ |
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"class", /* ATTR_CLASS */ |
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"style", /* ATTR_STYLE */ |
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"width", /* ATTR_WIDTH */ |
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"id", /* ATTR_ID */ |
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"summary", /* ATTR_SUMMARY */ |
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"align", /* ATTR_ALIGN */ |
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"colspan", /* ATTR_COLSPAN */ |
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}; |
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static const char *const roffscales[SCALE_MAX] = { |
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"cm", /* SCALE_CM */ |
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"in", /* SCALE_IN */ |
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"pc", /* SCALE_PC */ |
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"pt", /* SCALE_PT */ |
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"em", /* SCALE_EM */ |
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"em", /* SCALE_MM */ |
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"ex", /* SCALE_EN */ |
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"ex", /* SCALE_BU */ |
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"em", /* SCALE_VS */ |
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"ex", /* SCALE_FS */ |
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}; |
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static void print_num(struct html *, const char *, size_t); |
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static void print_spec(struct html *, const char *, size_t); |
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static void print_res(struct html *, const char *, size_t); |
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static void print_ctag(struct html *, enum htmltag); |
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static void print_doctype(struct html *); |
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static void print_xmltype(struct html *); |
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static int print_encode(struct html *, const char *, int); |
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static void print_metaf(struct html *, enum mandoc_esc); |
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static void print_attr(struct html *, |
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const char *, const char *); |
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static void *ml_alloc(char *, enum htmltype); |
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static void * |
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ml_alloc(char *outopts, enum htmltype type) |
{ |
{ |
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struct html *h; |
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const char *toks[4]; |
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char *v; |
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return(1); |
toks[0] = "style"; |
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toks[1] = "man"; |
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toks[2] = "includes"; |
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toks[3] = NULL; |
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h = mandoc_calloc(1, sizeof(struct html)); |
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h->type = type; |
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h->tags.head = NULL; |
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h->symtab = mchars_alloc(); |
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while (outopts && *outopts) |
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switch (getsubopt(&outopts, UNCONST(toks), &v)) { |
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case (0): |
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h->style = v; |
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break; |
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case (1): |
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h->base_man = v; |
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break; |
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case (2): |
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h->base_includes = v; |
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break; |
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default: |
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break; |
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} |
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return(h); |
} |
} |
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void * |
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html_alloc(char *outopts) |
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{ |
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return(ml_alloc(outopts, HTML_HTML_4_01_STRICT)); |
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} |
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void * |
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xhtml_alloc(char *outopts) |
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{ |
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return(ml_alloc(outopts, HTML_XHTML_1_0_STRICT)); |
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} |
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void |
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html_free(void *p) |
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{ |
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struct tag *tag; |
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struct html *h; |
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h = (struct html *)p; |
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while ((tag = h->tags.head) != NULL) { |
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h->tags.head = tag->next; |
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free(tag); |
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} |
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if (h->symtab) |
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mchars_free(h->symtab); |
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free(h); |
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} |
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void |
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print_gen_head(struct html *h) |
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{ |
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struct htmlpair tag[4]; |
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tag[0].key = ATTR_HTTPEQUIV; |
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tag[0].val = "Content-Type"; |
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tag[1].key = ATTR_CONTENT; |
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tag[1].val = "text/html; charset=utf-8"; |
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print_otag(h, TAG_META, 2, tag); |
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tag[0].key = ATTR_NAME; |
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tag[0].val = "resource-type"; |
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tag[1].key = ATTR_CONTENT; |
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tag[1].val = "document"; |
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print_otag(h, TAG_META, 2, tag); |
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if (h->style) { |
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tag[0].key = ATTR_REL; |
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tag[0].val = "stylesheet"; |
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tag[1].key = ATTR_HREF; |
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tag[1].val = h->style; |
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tag[2].key = ATTR_TYPE; |
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tag[2].val = "text/css"; |
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tag[3].key = ATTR_MEDIA; |
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tag[3].val = "all"; |
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print_otag(h, TAG_LINK, 4, tag); |
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} |
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} |
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/* ARGSUSED */ |
/* ARGSUSED */ |
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static void |
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print_num(struct html *h, const char *p, size_t len) |
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{ |
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char c; |
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if ('\0' != (c = mchars_num2char(p, len))) |
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putchar((int)c); |
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} |
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static void |
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print_spec(struct html *h, const char *p, size_t len) |
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{ |
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int cp; |
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const char *rhs; |
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size_t sz; |
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if ((cp = mchars_spec2cp(h->symtab, p, len)) > 0) { |
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printf("&#%d;", cp); |
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return; |
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} else if (-1 == cp && 1 == len) { |
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fwrite(p, 1, len, stdout); |
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return; |
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} else if (-1 == cp) |
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return; |
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if (NULL != (rhs = mchars_spec2str(h->symtab, p, len, &sz))) |
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fwrite(rhs, 1, sz, stdout); |
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} |
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static void |
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print_res(struct html *h, const char *p, size_t len) |
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{ |
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int cp; |
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const char *rhs; |
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size_t sz; |
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if ((cp = mchars_res2cp(h->symtab, p, len)) > 0) { |
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printf("&#%d;", cp); |
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return; |
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} else if (-1 == cp) |
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return; |
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if (NULL != (rhs = mchars_res2str(h->symtab, p, len, &sz))) |
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fwrite(rhs, 1, sz, stdout); |
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} |
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static void |
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print_metaf(struct html *h, enum mandoc_esc deco) |
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{ |
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enum htmlfont font; |
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switch (deco) { |
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case (ESCAPE_FONTPREV): |
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font = h->metal; |
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break; |
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case (ESCAPE_FONTITALIC): |
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font = HTMLFONT_ITALIC; |
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break; |
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case (ESCAPE_FONTBOLD): |
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font = HTMLFONT_BOLD; |
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break; |
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case (ESCAPE_FONTROMAN): |
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font = HTMLFONT_NONE; |
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break; |
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default: |
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abort(); |
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/* NOTREACHED */ |
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} |
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if (h->metaf) { |
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print_tagq(h, h->metaf); |
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h->metaf = NULL; |
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} |
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h->metal = h->metac; |
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h->metac = font; |
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if (HTMLFONT_NONE != font) |
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h->metaf = HTMLFONT_BOLD == font ? |
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print_otag(h, TAG_B, 0, NULL) : |
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print_otag(h, TAG_I, 0, NULL); |
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} |
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int |
int |
md_exit_html(void *data, int flush) |
html_strlen(const char *cp) |
{ |
{ |
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int ssz, sz; |
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const char *seq, *p; |
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return(1); |
/* |
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* Account for escaped sequences within string length |
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* calculations. This follows the logic in term_strlen() as we |
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* must calculate the width of produced strings. |
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* Assume that characters are always width of "1". This is |
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* hacky, but it gets the job done for approximation of widths. |
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*/ |
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sz = 0; |
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while (NULL != (p = strchr(cp, '\\'))) { |
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sz += (int)(p - cp); |
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++cp; |
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switch (mandoc_escape(&cp, &seq, &ssz)) { |
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case (ESCAPE_ERROR): |
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return(sz); |
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case (ESCAPE_NUMBERED): |
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/* FALLTHROUGH */ |
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case (ESCAPE_PREDEF): |
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/* FALLTHROUGH */ |
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case (ESCAPE_SPECIAL): |
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sz++; |
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break; |
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default: |
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break; |
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} |
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} |
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assert(sz >= 0); |
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return(sz + strlen(cp)); |
} |
} |
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static int |
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print_encode(struct html *h, const char *p, int norecurse) |
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{ |
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size_t sz; |
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int len, nospace; |
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const char *seq; |
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enum mandoc_esc esc; |
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static const char rejs[6] = { '\\', '<', '>', '&', ASCII_HYPH, '\0' }; |
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/* ARGSUSED */ |
nospace = 0; |
void * |
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md_init_html(const struct md_args *args, |
while ('\0' != *p) { |
struct md_mbuf *mbuf, const struct md_rbuf *rbuf) |
sz = strcspn(p, rejs); |
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fwrite(p, 1, sz, stdout); |
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p += (int)sz; |
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if ('\0' == *p) |
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break; |
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switch (*p++) { |
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case ('<'): |
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printf("<"); |
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continue; |
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case ('>'): |
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printf(">"); |
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continue; |
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case ('&'): |
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printf("&"); |
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continue; |
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case (ASCII_HYPH): |
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putchar('-'); |
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continue; |
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default: |
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break; |
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} |
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esc = mandoc_escape(&p, &seq, &len); |
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if (ESCAPE_ERROR == esc) |
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break; |
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switch (esc) { |
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case (ESCAPE_NUMBERED): |
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print_num(h, seq, len); |
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break; |
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case (ESCAPE_PREDEF): |
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print_res(h, seq, len); |
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break; |
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case (ESCAPE_SPECIAL): |
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print_spec(h, seq, len); |
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break; |
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case (ESCAPE_FONTPREV): |
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/* FALLTHROUGH */ |
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case (ESCAPE_FONTBOLD): |
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/* FALLTHROUGH */ |
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case (ESCAPE_FONTITALIC): |
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/* FALLTHROUGH */ |
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case (ESCAPE_FONTROMAN): |
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if (norecurse) |
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break; |
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print_metaf(h, esc); |
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break; |
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case (ESCAPE_NOSPACE): |
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if ('\0' == *p) |
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nospace = 1; |
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break; |
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default: |
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break; |
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} |
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} |
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return(nospace); |
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} |
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static void |
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print_attr(struct html *h, const char *key, const char *val) |
{ |
{ |
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printf(" %s=\"", key); |
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(void)print_encode(h, val, 1); |
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putchar('\"'); |
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} |
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return(NULL); |
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struct tag * |
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print_otag(struct html *h, enum htmltag tag, |
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int sz, const struct htmlpair *p) |
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{ |
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int i; |
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struct tag *t; |
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/* Push this tags onto the stack of open scopes. */ |
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if ( ! (HTML_NOSTACK & htmltags[tag].flags)) { |
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t = mandoc_malloc(sizeof(struct tag)); |
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t->tag = tag; |
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t->next = h->tags.head; |
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h->tags.head = t; |
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} else |
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t = NULL; |
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if ( ! (HTML_NOSPACE & h->flags)) |
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if ( ! (HTML_CLRLINE & htmltags[tag].flags)) { |
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/* Manage keeps! */ |
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if ( ! (HTML_KEEP & h->flags)) { |
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if (HTML_PREKEEP & h->flags) |
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h->flags |= HTML_KEEP; |
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putchar(' '); |
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} else |
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printf(" "); |
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} |
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if ( ! (h->flags & HTML_NONOSPACE)) |
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h->flags &= ~HTML_NOSPACE; |
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else |
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h->flags |= HTML_NOSPACE; |
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/* Print out the tag name and attributes. */ |
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printf("<%s", htmltags[tag].name); |
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for (i = 0; i < sz; i++) |
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print_attr(h, htmlattrs[p[i].key], p[i].val); |
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/* Add non-overridable attributes. */ |
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if (TAG_HTML == tag && HTML_XHTML_1_0_STRICT == h->type) { |
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print_attr(h, "xmlns", "http://www.w3.org/1999/xhtml"); |
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print_attr(h, "xml:lang", "en"); |
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print_attr(h, "lang", "en"); |
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} |
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/* Accommodate for XML "well-formed" singleton escaping. */ |
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if (HTML_AUTOCLOSE & htmltags[tag].flags) |
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switch (h->type) { |
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case (HTML_XHTML_1_0_STRICT): |
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putchar('/'); |
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break; |
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default: |
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break; |
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} |
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putchar('>'); |
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h->flags |= HTML_NOSPACE; |
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if ((HTML_AUTOCLOSE | HTML_CLRLINE) & htmltags[tag].flags) |
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putchar('\n'); |
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return(t); |
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} |
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static void |
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print_ctag(struct html *h, enum htmltag tag) |
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{ |
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|
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printf("</%s>", htmltags[tag].name); |
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if (HTML_CLRLINE & htmltags[tag].flags) { |
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h->flags |= HTML_NOSPACE; |
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putchar('\n'); |
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} |
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} |
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void |
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print_gen_decls(struct html *h) |
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{ |
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print_xmltype(h); |
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print_doctype(h); |
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} |
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static void |
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print_xmltype(struct html *h) |
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{ |
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|
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if (HTML_XHTML_1_0_STRICT == h->type) |
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puts("<?xml version=\"1.0\" encoding=\"UTF-8\"?>"); |
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} |
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static void |
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print_doctype(struct html *h) |
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{ |
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const char *doctype; |
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const char *dtd; |
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const char *name; |
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switch (h->type) { |
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case (HTML_HTML_4_01_STRICT): |
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name = "HTML"; |
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doctype = "-//W3C//DTD HTML 4.01//EN"; |
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dtd = "http://www.w3.org/TR/html4/strict.dtd"; |
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break; |
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default: |
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name = "html"; |
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doctype = "-//W3C//DTD XHTML 1.0 Strict//EN"; |
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dtd = "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"; |
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break; |
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} |
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printf("<!DOCTYPE %s PUBLIC \"%s\" \"%s\">\n", |
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name, doctype, dtd); |
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} |
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|
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void |
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print_text(struct html *h, const char *word) |
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{ |
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|
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if ( ! (HTML_NOSPACE & h->flags)) { |
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/* Manage keeps! */ |
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if ( ! (HTML_KEEP & h->flags)) { |
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if (HTML_PREKEEP & h->flags) |
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h->flags |= HTML_KEEP; |
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putchar(' '); |
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} else |
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printf(" "); |
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} |
|
|
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assert(NULL == h->metaf); |
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if (HTMLFONT_NONE != h->metac) |
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h->metaf = HTMLFONT_BOLD == h->metac ? |
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print_otag(h, TAG_B, 0, NULL) : |
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print_otag(h, TAG_I, 0, NULL); |
|
|
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assert(word); |
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if ( ! print_encode(h, word, 0)) |
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if ( ! (h->flags & HTML_NONOSPACE)) |
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h->flags &= ~HTML_NOSPACE; |
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|
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if (h->metaf) { |
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print_tagq(h, h->metaf); |
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h->metaf = NULL; |
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} |
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|
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h->flags &= ~HTML_IGNDELIM; |
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} |
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|
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void |
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print_tagq(struct html *h, const struct tag *until) |
|
{ |
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struct tag *tag; |
|
|
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while ((tag = h->tags.head) != NULL) { |
|
/* |
|
* Remember to close out and nullify the current |
|
* meta-font and table, if applicable. |
|
*/ |
|
if (tag == h->metaf) |
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h->metaf = NULL; |
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if (tag == h->tblt) |
|
h->tblt = NULL; |
|
print_ctag(h, tag->tag); |
|
h->tags.head = tag->next; |
|
free(tag); |
|
if (until && tag == until) |
|
return; |
|
} |
|
} |
|
|
|
|
|
void |
|
print_stagq(struct html *h, const struct tag *suntil) |
|
{ |
|
struct tag *tag; |
|
|
|
while ((tag = h->tags.head) != NULL) { |
|
if (suntil && tag == suntil) |
|
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); |
|
h->tags.head = tag->next; |
|
free(tag); |
|
} |
|
} |
|
|
|
|
|
void |
|
bufinit(struct html *h) |
|
{ |
|
|
|
h->buf[0] = '\0'; |
|
h->buflen = 0; |
|
} |
|
|
|
|
|
void |
|
bufcat_style(struct html *h, const char *key, const char *val) |
|
{ |
|
|
|
bufcat(h, key); |
|
bufncat(h, ":", 1); |
|
bufcat(h, val); |
|
bufncat(h, ";", 1); |
|
} |
|
|
|
|
|
void |
|
bufcat(struct html *h, const char *p) |
|
{ |
|
|
|
bufncat(h, p, strlen(p)); |
|
} |
|
|
|
|
|
void |
|
buffmt(struct html *h, const char *fmt, ...) |
|
{ |
|
va_list ap; |
|
|
|
va_start(ap, fmt); |
|
(void)vsnprintf(h->buf + (int)h->buflen, |
|
BUFSIZ - h->buflen - 1, fmt, ap); |
|
va_end(ap); |
|
h->buflen = strlen(h->buf); |
|
} |
|
|
|
|
|
void |
|
bufncat(struct html *h, const char *p, size_t sz) |
|
{ |
|
|
|
if (h->buflen + sz > BUFSIZ - 1) |
|
sz = BUFSIZ - 1 - h->buflen; |
|
|
|
(void)strncat(h->buf, p, sz); |
|
h->buflen += sz; |
|
} |
|
|
|
|
|
void |
|
buffmt_includes(struct html *h, const char *name) |
|
{ |
|
const char *p, *pp; |
|
|
|
pp = h->base_includes; |
|
|
|
while (NULL != (p = strchr(pp, '%'))) { |
|
bufncat(h, pp, (size_t)(p - pp)); |
|
switch (*(p + 1)) { |
|
case('I'): |
|
bufcat(h, name); |
|
break; |
|
default: |
|
bufncat(h, p, 2); |
|
break; |
|
} |
|
pp = p + 2; |
|
} |
|
if (pp) |
|
bufcat(h, pp); |
|
} |
|
|
|
|
|
void |
|
buffmt_man(struct html *h, |
|
const char *name, const char *sec) |
|
{ |
|
const char *p, *pp; |
|
|
|
pp = h->base_man; |
|
|
|
/* LINTED */ |
|
while (NULL != (p = strchr(pp, '%'))) { |
|
bufncat(h, pp, (size_t)(p - pp)); |
|
switch (*(p + 1)) { |
|
case('S'): |
|
bufcat(h, sec ? sec : "1"); |
|
break; |
|
case('N'): |
|
buffmt(h, name); |
|
break; |
|
default: |
|
bufncat(h, p, 2); |
|
break; |
|
} |
|
pp = p + 2; |
|
} |
|
if (pp) |
|
bufcat(h, pp); |
|
} |
|
|
|
|
|
void |
|
bufcat_su(struct html *h, const char *p, const struct roffsu *su) |
|
{ |
|
double v; |
|
|
|
v = su->scale; |
|
if (SCALE_MM == su->unit && 0.0 == (v /= 100.0)) |
|
v = 1.0; |
|
|
|
buffmt(h, "%s: %.2f%s;", p, v, roffscales[su->unit]); |
|
} |
|
|
|
|
|
void |
|
html_idcat(char *dst, const char *src, int sz) |
|
{ |
|
int ssz; |
|
|
|
assert(sz > 2); |
|
|
|
/* Cf. <http://www.w3.org/TR/html4/types.html#h-6.2>. */ |
|
|
|
/* We can't start with a number (bah). */ |
|
|
|
if ('#' == *dst) { |
|
dst++; |
|
sz--; |
|
} |
|
if ('\0' == *dst) { |
|
*dst++ = 'x'; |
|
*dst = '\0'; |
|
sz--; |
|
} |
|
|
|
for ( ; *dst != '\0' && sz; dst++, sz--) |
|
/* Jump to end. */ ; |
|
|
|
for ( ; *src != '\0' && sz > 1; src++) { |
|
ssz = snprintf(dst, (size_t)sz, "%.2x", *src); |
|
sz -= ssz; |
|
dst += ssz; |
|
} |
} |
} |