=================================================================== RCS file: /cvs/mandoc/html.c,v retrieving revision 1.8 retrieving revision 1.103 diff -u -p -r1.8 -r1.103 --- mandoc/html.c 2008/12/05 17:43:14 1.8 +++ mandoc/html.c 2010/06/25 19:50:23 1.103 @@ -1,494 +1,754 @@ -/* $Id: html.c,v 1.8 2008/12/05 17:43:14 kristaps Exp $ */ +/* $Id: html.c,v 1.103 2010/06/25 19:50:23 kristaps Exp $ */ /* - * Copyright (c) 2008 Kristaps Dzonsons + * Copyright (c) 2008, 2009 Kristaps Dzonsons * * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the - * above copyright notice and this permission notice appear in all - * copies. + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL - * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE - * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER - * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR - * PERFORMANCE OF THIS SOFTWARE. + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ -#include -#include +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif +#include + #include -#include -#include -#include +#include +#include #include +#include +#include #include #include -#include "libmdocml.h" -#include "private.h" -#include "ml.h" +#include "mandoc.h" +#include "out.h" +#include "chars.h" +#include "html.h" +#include "main.h" +struct htmldata { + const char *name; + int flags; +#define HTML_CLRLINE (1 << 0) +#define HTML_NOSTACK (1 << 1) +#define HTML_AUTOCLOSE (1 << 2) /* Tag has auto-closure. */ +}; -/* TODO: allow head/tail-less invocations (just "div" start). */ -/* FIXME: free htmlq. */ +static const struct htmldata htmltags[TAG_MAX] = { + {"html", HTML_CLRLINE}, /* TAG_HTML */ + {"head", HTML_CLRLINE}, /* TAG_HEAD */ + {"body", HTML_CLRLINE}, /* TAG_BODY */ + {"meta", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_META */ + {"title", HTML_CLRLINE}, /* TAG_TITLE */ + {"div", HTML_CLRLINE}, /* TAG_DIV */ + {"h1", 0}, /* TAG_H1 */ + {"h2", 0}, /* TAG_H2 */ + {"span", 0}, /* TAG_SPAN */ + {"link", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_LINK */ + {"br", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_BR */ + {"a", 0}, /* TAG_A */ + {"table", HTML_CLRLINE}, /* TAG_TABLE */ + {"col", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_COL */ + {"tr", HTML_CLRLINE}, /* TAG_TR */ + {"td", HTML_CLRLINE}, /* TAG_TD */ + {"li", HTML_CLRLINE}, /* TAG_LI */ + {"ul", HTML_CLRLINE}, /* TAG_UL */ + {"ol", HTML_CLRLINE}, /* TAG_OL */ +}; -struct htmlnode { - int tok; - enum md_ns ns; - int *argc[ROFF_MAXLINEARG]; - char *argv[ROFF_MAXLINEARG]; - struct htmlnode *parent; +static const char *const htmlfonts[HTMLFONT_MAX] = { + "roman", + "bold", + "italic" }; - -struct htmlq { - struct htmlnode *last; +static const char *const htmlattrs[ATTR_MAX] = { + "http-equiv", + "content", + "name", + "rel", + "href", + "type", + "media", + "class", + "style", + "width", + "valign", + "target", + "id", + "summary", }; - -static void htmlnode_free(struct htmlnode *); -static void htmlnode_free(struct htmlnode *); - -static int html_loadcss(struct md_mbuf *, const char *); - -static ssize_t html_endtag(struct md_mbuf *, void *, - const struct md_args *, - enum md_ns, int); -static ssize_t html_begintag(struct md_mbuf *, void *, - const struct md_args *, - enum md_ns, int, - const int *, const char **); -static int html_begin(struct md_mbuf *, - const struct md_args *, - const struct tm *, - const char *, const char *, +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 void print_doctype(struct html *); +static void print_xmltype(struct html *); +static int print_encode(struct html *, const char *, int); +static void print_metaf(struct html *, enum roffdeco); +static void print_attr(struct html *, const char *, const char *); -static int html_printargs(struct md_mbuf *, int, - const char *, const int *, - const char **, size_t *); -static int html_end(struct md_mbuf *, - const struct md_args *); -static int html_blocktagname(struct md_mbuf *, - const struct md_args *, int, size_t *); -static int html_blocktagargs(struct md_mbuf *, - const struct md_args *, int, - const int *, const char **, size_t *); -static int html_blockheadtagname(struct md_mbuf *, - const struct md_args *, int, size_t *); -static int html_blockheadtagargs(struct md_mbuf *, - const struct md_args *, int, - const int *, const char **, size_t *); -static int html_blockbodytagname(struct md_mbuf *, - const struct md_args *, int, size_t *); -static int html_blockbodytagargs(struct md_mbuf *, - const struct md_args *, int, - const int *, const char **, size_t *); -static int html_inlinetagname(struct md_mbuf *, - const struct md_args *, int, size_t *); -static int html_inlinetagargs(struct md_mbuf *, - const struct md_args *, int, - const int *, const char **, size_t *); +static void *ml_alloc(char *, enum htmltype); -static int -html_loadcss(struct md_mbuf *mbuf, const char *css) +static void * +ml_alloc(char *outopts, enum htmltype type) { - size_t res, bufsz; - char *buf; - struct stat st; - int fd, c; - ssize_t ssz; + struct html *h; + const char *toks[4]; + char *v; - c = 0; - res = 0; - buf = NULL; + toks[0] = "style"; + toks[1] = "man"; + toks[2] = "includes"; + toks[3] = NULL; - if (-1 == (fd = open(css, O_RDONLY, 0))) { - warn("%s", css); - return(0); - } - - if (-1 == fstat(fd, &st)) { - warn("%s", css); - goto out; + h = calloc(1, sizeof(struct html)); + if (NULL == h) { + perror(NULL); + exit(EXIT_FAILURE); } - bufsz = MAX(st.st_blksize, BUFSIZ); - if (NULL == (buf = malloc(bufsz))) { - warn("malloc"); - goto out; - } + h->type = type; + h->tags.head = NULL; + h->ords.head = NULL; + h->symtab = chars_init(CHARS_HTML); - for (;;) { - if (-1 == (ssz = read(fd, buf, bufsz))) { - warn("%s", css); - goto out; - } else if (0 == ssz) + while (outopts && *outopts) + switch (getsubopt(&outopts, UNCONST(toks), &v)) { + case (0): + h->style = v; break; - if ( ! ml_nputs(mbuf, buf, (size_t)ssz, &res)) - goto out; - } + case (1): + h->base_man = v; + break; + case (2): + h->base_includes = v; + break; + default: + break; + } - c = 1; + return(h); +} -out: - if (-1 == close(fd)) { - warn("%s", css); - c = 0; - } +void * +html_alloc(char *outopts) +{ - if (buf) - free(buf); - - return(c); + return(ml_alloc(outopts, HTML_HTML_4_01_STRICT)); } -/* ARGSUSED */ -static int -html_begin(struct md_mbuf *mbuf, const struct md_args *args, - const struct tm *tm, const char *os, - const char *title, const char *section, - const char *vol) +void * +xhtml_alloc(char *outopts) { - const char *preamble, *css, *trail; - char buf[512]; - size_t res; - preamble = - "\n" - "\n" - "\n" - " \n" - " \n" - " Manual Page for %s(%s)\n"; + return(ml_alloc(outopts, HTML_XHTML_1_0_STRICT)); +} - css = - " \n"; - trail = - "\n" - "\n" - "
\n"; - res = 0; +void +html_free(void *p) +{ + struct tag *tag; + struct ord *ord; + struct html *h; - (void)snprintf(buf, sizeof(buf) - 1, - preamble, title, section); + h = (struct html *)p; - if ( ! ml_puts(mbuf, buf, &res)) - return(0); + while ((ord = h->ords.head) != NULL) { + h->ords.head = ord->next; + free(ord); + } - assert(args->params.html.css); - if (HTML_CSS_EMBED & args->params.html.flags) { - if ( ! ml_puts(mbuf, " \n", &res)) - return(0); - } else { - (void)snprintf(buf, sizeof(buf) - 1, css, - args->params.html.css); - if ( ! ml_puts(mbuf, buf, &res)) - return(0); + while ((tag = h->tags.head) != NULL) { + h->tags.head = tag->next; + free(tag); } + + if (h->symtab) + chars_free(h->symtab); - if ( ! ml_puts(mbuf, trail, &res)) - return(0); - - return(1); + free(h); } -/* ARGSUSED */ -static int -html_end(struct md_mbuf *mbuf, const struct md_args *args) +void +print_gen_head(struct html *h) { - size_t res; + struct htmlpair tag[4]; - res = 0; - if ( ! ml_puts(mbuf, "
\n", &res)) - return(0); + tag[0].key = ATTR_HTTPEQUIV; + tag[0].val = "Content-Type"; + tag[1].key = ATTR_CONTENT; + tag[1].val = "text/html; charset=utf-8"; + print_otag(h, TAG_META, 2, tag); - return(1); + tag[0].key = ATTR_NAME; + tag[0].val = "resource-type"; + tag[1].key = ATTR_CONTENT; + tag[1].val = "document"; + print_otag(h, TAG_META, 2, tag); + + if (h->style) { + tag[0].key = ATTR_REL; + tag[0].val = "stylesheet"; + tag[1].key = ATTR_HREF; + tag[1].val = h->style; + tag[2].key = ATTR_TYPE; + tag[2].val = "text/css"; + tag[3].key = ATTR_MEDIA; + tag[3].val = "all"; + print_otag(h, TAG_LINK, 4, tag); + } } -/* ARGSUSED */ -static int -html_blockbodytagname(struct md_mbuf *mbuf, - const struct md_args *args, int tok, size_t *res) +static void +print_spec(struct html *h, const char *p, size_t len) { + const char *rhs; + size_t sz; - return(ml_puts(mbuf, "div", res)); + rhs = chars_a2ascii(h->symtab, p, len, &sz); + + if (NULL == rhs) + return; + fwrite(rhs, 1, sz, stdout); } +static void +print_res(struct html *h, const char *p, size_t len) +{ + const char *rhs; + size_t sz; + rhs = chars_a2res(h->symtab, p, len, &sz); -/* ARGSUSED */ -static int -html_blockheadtagname(struct md_mbuf *mbuf, - const struct md_args *args, int tok, size_t *res) + if (NULL == rhs) + return; + fwrite(rhs, 1, sz, stdout); +} + + +struct tag * +print_ofont(struct html *h, enum htmlfont font) { + struct htmlpair tag; - return(ml_puts(mbuf, "div", res)); + h->metal = h->metac; + h->metac = font; + + /* FIXME: DECO_ROMAN should just close out preexisting. */ + + if (h->metaf && h->tags.head == h->metaf) + print_tagq(h, h->metaf); + + PAIR_CLASS_INIT(&tag, htmlfonts[font]); + h->metaf = print_otag(h, TAG_SPAN, 1, &tag); + return(h->metaf); } -/* ARGSUSED */ -static int -html_blocktagname(struct md_mbuf *mbuf, - const struct md_args *args, int tok, size_t *res) +static void +print_metaf(struct html *h, enum roffdeco deco) { + enum htmlfont font; - return(ml_puts(mbuf, "div", res)); + switch (deco) { + case (DECO_PREVIOUS): + font = h->metal; + break; + case (DECO_ITALIC): + font = HTMLFONT_ITALIC; + break; + case (DECO_BOLD): + font = HTMLFONT_BOLD; + break; + case (DECO_ROMAN): + font = HTMLFONT_NONE; + break; + default: + abort(); + /* NOTREACHED */ + } + + (void)print_ofont(h, font); } static int -html_printargs(struct md_mbuf *mbuf, int tok, const char *ns, - const int *argc, const char **argv, size_t *res) +print_encode(struct html *h, const char *p, int norecurse) { - int i, c; + size_t sz; + int len, nospace; + const char *seq; + enum roffdeco deco; + static const char rejs[6] = { '\\', '<', '>', '&', ASCII_HYPH, '\0' }; - if ( ! ml_puts(mbuf, " class=\"", res)) - return(0); - if ( ! ml_puts(mbuf, ns, res)) - return(0); - if ( ! ml_puts(mbuf, "-", res)) - return(0); - if ( ! ml_puts(mbuf, toknames[tok], res)) - return(0); - if ( ! ml_puts(mbuf, "\"", res)) - return(0); + nospace = 0; - if (NULL == argv || NULL == argc) - return(1); - assert(argv && argc); - - /* FIXME: ignores values. */ + for (; *p; p++) { + sz = strcspn(p, rejs); - for (i = 0; ROFF_ARGMAX != (c = argc[i]); i++) { - if (argv[i]) + fwrite(p, 1, sz, stdout); + p += /* LINTED */ + sz; + + if ('<' == *p) { + printf("<"); continue; - if ( ! ml_puts(mbuf, " class=\"", res)) - return(0); - if ( ! ml_puts(mbuf, ns, res)) - return(0); - if ( ! ml_puts(mbuf, "-", res)) - return(0); - if ( ! ml_puts(mbuf, toknames[tok], res)) - return(0); - if ( ! ml_puts(mbuf, "-", res)) - return(0); - if ( ! ml_puts(mbuf, tokargnames[c], res)) - return(0); - if ( ! ml_puts(mbuf, "\"", res)) - return(0); + } else if ('>' == *p) { + printf(">"); + continue; + } else if ('&' == *p) { + printf("&"); + continue; + } else if (ASCII_HYPH == *p) { + /* + * Note: "soft hyphens" aren't graphically + * displayed when not breaking the text; we want + * them to be displayed. + */ + /*printf("­");*/ + putchar('-'); + continue; + } else if ('\0' == *p) + break; + + seq = ++p; + len = a2roffdeco(&deco, &seq, &sz); + + switch (deco) { + case (DECO_RESERVED): + print_res(h, seq, sz); + break; + case (DECO_SPECIAL): + print_spec(h, seq, sz); + break; + case (DECO_PREVIOUS): + /* FALLTHROUGH */ + case (DECO_BOLD): + /* FALLTHROUGH */ + case (DECO_ITALIC): + /* FALLTHROUGH */ + case (DECO_ROMAN): + if (norecurse) + break; + print_metaf(h, deco); + break; + default: + break; + } + + p += len - 1; + + if (DECO_NOSPACE == deco && '\0' == *(p + 1)) + nospace = 1; } - return(1); + return(nospace); } -/* ARGSUSED */ -static int -html_blockheadtagargs(struct md_mbuf *mbuf, - const struct md_args *args, int tok, - const int *argc, const char **argv, size_t *res) +static void +print_attr(struct html *h, const char *key, const char *val) { - - return(html_printargs(mbuf, tok, "head", argc, argv, res)); + printf(" %s=\"", key); + (void)print_encode(h, val, 1); + putchar('\"'); } -/* ARGSUSED */ -static int -html_blockbodytagargs(struct md_mbuf *mbuf, - const struct md_args *args, int tok, - const int *argc, const char **argv, size_t *res) +struct tag * +print_otag(struct html *h, enum htmltag tag, + int sz, const struct htmlpair *p) { + int i; + struct tag *t; - return(html_printargs(mbuf, tok, "body", argc, argv, res)); + /* Push this tags onto the stack of open scopes. */ + + if ( ! (HTML_NOSTACK & htmltags[tag].flags)) { + t = malloc(sizeof(struct tag)); + if (NULL == t) { + perror(NULL); + exit(EXIT_FAILURE); + } + t->tag = tag; + t->next = h->tags.head; + h->tags.head = t; + } else + t = NULL; + + if ( ! (HTML_NOSPACE & h->flags)) + if ( ! (HTML_CLRLINE & htmltags[tag].flags)) + putchar(' '); + + /* Print out the tag name and attributes. */ + + printf("<%s", htmltags[tag].name); + for (i = 0; i < sz; i++) + print_attr(h, htmlattrs[p[i].key], p[i].val); + + /* Add non-overridable attributes. */ + + 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"); + } + + /* Accomodate 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; + return(t); } -/* ARGSUSED */ -static int -html_blocktagargs(struct md_mbuf *mbuf, - const struct md_args *args, int tok, - const int *argc, const char **argv, size_t *res) +static void +print_ctag(struct html *h, enum htmltag tag) { + + printf("", htmltags[tag].name); + if (HTML_CLRLINE & htmltags[tag].flags) { + h->flags |= HTML_NOSPACE; + putchar('\n'); + } +} - return(html_printargs(mbuf, tok, "block", argc, argv, res)); + +void +print_gen_decls(struct html *h) +{ + + print_xmltype(h); + print_doctype(h); } -/* ARGSUSED */ -static int -html_inlinetagargs(struct md_mbuf *mbuf, - const struct md_args *args, int tok, - const int *argc, const char **argv, size_t *res) +static void +print_xmltype(struct html *h) { - return(html_printargs(mbuf, tok, "inline", argc, argv, res)); + if (HTML_XHTML_1_0_STRICT == h->type) + printf(""); } -/* ARGSUSED */ -static int -html_inlinetagname(struct md_mbuf *mbuf, - const struct md_args *args, int tok, size_t *res) +static void +print_doctype(struct html *h) { + const char *doctype; + const char *dtd; + const char *name; - switch (tok) { - case (ROFF_Pp): - return(ml_puts(mbuf, "div", res)); + 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: - return(ml_puts(mbuf, "span", res)); + name = "html"; + doctype = "-//W3C//DTD XHTML 1.0 Strict//EN"; + dtd = "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"; + break; } - return(1); + + printf("\n", + name, doctype, dtd); } -static ssize_t -html_begintag(struct md_mbuf *mbuf, void *data, - const struct md_args *args, enum md_ns ns, - int tok, const int *argc, const char **argv) +void +print_text(struct html *h, const char *p) { - size_t res; - struct htmlq *q; - struct htmlnode *node; - assert(ns != MD_NS_DEFAULT); - res = 0; + if (*p && 0 == *(p + 1)) + switch (*p) { + case('.'): + /* FALLTHROUGH */ + case(','): + /* FALLTHROUGH */ + case(';'): + /* FALLTHROUGH */ + case(':'): + /* FALLTHROUGH */ + case('?'): + /* FALLTHROUGH */ + case('!'): + /* FALLTHROUGH */ + case(')'): + /* FALLTHROUGH */ + case(']'): + if ( ! (HTML_IGNDELIM & h->flags)) + h->flags |= HTML_NOSPACE; + break; + default: + break; + } - assert(data); - q = (struct htmlq *)data; + if ( ! (h->flags & HTML_NOSPACE)) + putchar(' '); - if (NULL == (node = calloc(1, sizeof(struct htmlnode)))) { - warn("calloc"); - return(-1); + assert(p); + if ( ! print_encode(h, p, 0)) + h->flags &= ~HTML_NOSPACE; + + /* + * Note that we don't process the pipe: the parser sees it as + * punctuation, but we don't in terms of typography. + */ + if (*p && 0 == *(p + 1)) + switch (*p) { + case('('): + /* FALLTHROUGH */ + case('['): + h->flags |= HTML_NOSPACE; + break; + default: + break; + } +} + + +void +print_tagq(struct html *h, const struct tag *until) +{ + struct tag *tag; + + while ((tag = h->tags.head) != NULL) { + if (tag == h->metaf) + h->metaf = NULL; + print_ctag(h, tag->tag); + h->tags.head = tag->next; + free(tag); + if (until && tag == until) + return; } +} - node->parent = q->last; - node->tok = tok; - node->ns = ns; - q->last = node; +void +print_stagq(struct html *h, const struct tag *suntil) +{ + struct tag *tag; - switch (ns) { - case (MD_NS_BLOCK): - if ( ! html_blocktagname(mbuf, args, tok, &res)) - return(-1); - if ( ! html_blocktagargs(mbuf, args, tok, - argc, argv, &res)) - return(-1); - break; - case (MD_NS_BODY): - if ( ! html_blockbodytagname(mbuf, args, tok, &res)) - return(-1); - if ( ! html_blockbodytagargs(mbuf, args, tok, - argc, argv, &res)) - return(-1); - break; - case (MD_NS_HEAD): - if ( ! html_blockheadtagname(mbuf, args, tok, &res)) - return(-1); - if ( ! html_blockheadtagargs(mbuf, args, tok, - argc, argv, &res)) - return(-1); - break; - default: - if ( ! html_inlinetagname(mbuf, args, tok, &res)) - return(-1); - if ( ! html_inlinetagargs(mbuf, args, tok, - argc, argv, &res)) - return(-1); - break; + while ((tag = h->tags.head) != NULL) { + if (suntil && tag == suntil) + return; + if (tag == h->metaf) + h->metaf = NULL; + print_ctag(h, tag->tag); + h->tags.head = tag->next; + free(tag); } +} - return((ssize_t)res); + +void +bufinit(struct html *h) +{ + + h->buf[0] = '\0'; + h->buflen = 0; } -static ssize_t -html_endtag(struct md_mbuf *mbuf, void *data, - const struct md_args *args, enum md_ns ns, int tok) +void +bufcat_style(struct html *h, const char *key, const char *val) { - size_t res; - struct htmlq *q; - struct htmlnode *node; - assert(ns != MD_NS_DEFAULT); - res = 0; + bufcat(h, key); + bufncat(h, ":", 1); + bufcat(h, val); + bufncat(h, ";", 1); +} - assert(data); - q = (struct htmlq *)data; - switch (ns) { - case (MD_NS_BLOCK): - if ( ! html_blocktagname(mbuf, args, tok, &res)) - return(-1); - break; - case (MD_NS_BODY): - if ( ! html_blockbodytagname(mbuf, args, tok, &res)) - return(-1); - break; - case (MD_NS_HEAD): - if ( ! html_blockheadtagname(mbuf, args, tok, &res)) - return(-1); - break; - default: - if ( ! html_inlinetagname(mbuf, args, tok, &res)) - return(-1); - break; - } +void +bufcat(struct html *h, const char *p) +{ - node = q->last; - q->last = node->parent; + bufncat(h, p, strlen(p)); +} - htmlnode_free(node); - return((ssize_t)res); +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); } -int -md_line_html(void *data, char *buf) +void +bufncat(struct html *h, const char *p, size_t sz) { - return(mlg_line((struct md_mlg *)data, buf)); + if (h->buflen + sz > BUFSIZ - 1) + sz = BUFSIZ - 1 - h->buflen; + + (void)strncat(h->buf, p, sz); + h->buflen += sz; } -int -md_exit_html(void *data, int flush) +void +buffmt_includes(struct html *h, const char *name) { + const char *p, *pp; - return(mlg_exit((struct md_mlg *)data, flush)); + 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 * -md_init_html(const struct md_args *args, - struct md_mbuf *mbuf, const struct md_rbuf *rbuf) +void +buffmt_man(struct html *h, + const char *name, const char *sec) { - struct htmlq *q; + const char *p, *pp; - if (NULL == (q = calloc(1, sizeof(struct htmlq)))) { - warn("calloc"); - return(NULL); + 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); +} - return(mlg_alloc(args, q, rbuf, mbuf, html_begintag, - html_endtag, html_begin, html_end)); + +void +bufcat_su(struct html *h, const char *p, const struct roffsu *su) +{ + double v; + const char *u; + + v = su->scale; + + switch (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; + } + + /* + * XXX: the CSS spec isn't clear as to which types accept + * integer or real numbers, so we just make them all decimals. + */ + buffmt(h, "%s: %.2f%s;", p, v, u); } + +void +html_idcat(char *dst, const char *src, int sz) +{ + int ssz; + + assert(sz); + + /* Cf. . */ + + for ( ; *dst != '\0' && sz; dst++, sz--) + /* Jump to end. */ ; + + assert(sz > 2); + + /* We can't start with a number (bah). */ + + *dst++ = 'x'; + *dst = '\0'; + sz--; + + for ( ; *src != '\0' && sz > 1; src++) { + ssz = snprintf(dst, (size_t)sz, "%.2x", *src); + sz -= ssz; + dst += ssz; + } +}