-/* $Id: html.c,v 1.59 2009/10/07 14:39:00 kristaps Exp $ */
+/* $Id: html.c,v 1.229 2018/05/25 20:23:51 schwarze Exp $ */
/*
- * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
+ * Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2011-2015, 2017, 2018 Ingo Schwarze <schwarze@openbsd.org>
*
* 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.
*
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS 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 "config.h"
+
#include <sys/types.h>
-#include <sys/queue.h>
#include <assert.h>
-#include <err.h>
-#include <stdio.h>
+#include <ctype.h>
#include <stdarg.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
+#include "mandoc_aux.h"
+#include "mandoc_ohash.h"
+#include "mandoc.h"
+#include "roff.h"
#include "out.h"
-#include "chars.h"
#include "html.h"
-
-#define DOCTYPE "-//W3C//DTD HTML 4.01//EN"
-#define DTD "http://www.w3.org/TR/html4/strict.dtd"
+#include "manconf.h"
+#include "main.h"
struct htmldata {
- char *name;
+ const char *name;
int flags;
-#define HTML_CLRLINE (1 << 0)
-#define HTML_NOSTACK (1 << 1)
+#define HTML_NOSTACK (1 << 0)
+#define HTML_AUTOCLOSE (1 << 1)
+#define HTML_NLBEFORE (1 << 2)
+#define HTML_NLBEGIN (1 << 3)
+#define HTML_NLEND (1 << 4)
+#define HTML_NLAFTER (1 << 5)
+#define HTML_NLAROUND (HTML_NLBEFORE | HTML_NLAFTER)
+#define HTML_NLINSIDE (HTML_NLBEGIN | HTML_NLEND)
+#define HTML_NLALL (HTML_NLAROUND | HTML_NLINSIDE)
+#define HTML_INDENT (1 << 6)
+#define HTML_NOINDENT (1 << 7)
};
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}, /* TAG_META */
- {"title", HTML_CLRLINE}, /* TAG_TITLE */
- {"div", HTML_CLRLINE}, /* TAG_DIV */
- {"h1", 0}, /* TAG_H1 */
- {"h2", 0}, /* TAG_H2 */
- {"p", HTML_CLRLINE}, /* TAG_P */
- {"span", 0}, /* TAG_SPAN */
- {"link", HTML_CLRLINE | HTML_NOSTACK}, /* TAG_LINK */
- {"br", HTML_CLRLINE | HTML_NOSTACK}, /* TAG_LINK */
- {"a", 0}, /* TAG_A */
- {"table", HTML_CLRLINE}, /* TAG_TABLE */
- {"col", HTML_CLRLINE | HTML_NOSTACK}, /* 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 */
- {"base", HTML_CLRLINE | HTML_NOSTACK}, /* TAG_BASE */
+ {"html", HTML_NLALL},
+ {"head", HTML_NLALL | HTML_INDENT},
+ {"body", HTML_NLALL},
+ {"meta", HTML_NOSTACK | HTML_AUTOCLOSE | HTML_NLALL},
+ {"title", HTML_NLAROUND},
+ {"div", HTML_NLAROUND},
+ {"div", 0},
+ {"h1", HTML_NLAROUND},
+ {"h2", HTML_NLAROUND},
+ {"span", 0},
+ {"link", HTML_NOSTACK | HTML_AUTOCLOSE | HTML_NLALL},
+ {"br", HTML_NOSTACK | HTML_AUTOCLOSE | HTML_NLALL},
+ {"a", 0},
+ {"table", HTML_NLALL | HTML_INDENT},
+ {"colgroup", HTML_NLALL | HTML_INDENT},
+ {"col", HTML_NOSTACK | HTML_AUTOCLOSE | HTML_NLALL},
+ {"tr", HTML_NLALL | HTML_INDENT},
+ {"td", HTML_NLAROUND},
+ {"li", HTML_NLAROUND | HTML_INDENT},
+ {"ul", HTML_NLALL | HTML_INDENT},
+ {"ol", HTML_NLALL | HTML_INDENT},
+ {"dl", HTML_NLALL | HTML_INDENT},
+ {"dt", HTML_NLAROUND},
+ {"dd", HTML_NLAROUND | HTML_INDENT},
+ {"pre", HTML_NLALL | HTML_NOINDENT},
+ {"var", 0},
+ {"cite", 0},
+ {"b", 0},
+ {"i", 0},
+ {"code", 0},
+ {"small", 0},
+ {"style", HTML_NLALL | HTML_INDENT},
+ {"math", HTML_NLALL | HTML_INDENT},
+ {"mrow", 0},
+ {"mi", 0},
+ {"mn", 0},
+ {"mo", 0},
+ {"msup", 0},
+ {"msub", 0},
+ {"msubsup", 0},
+ {"mfrac", 0},
+ {"msqrt", 0},
+ {"mfenced", 0},
+ {"mtable", 0},
+ {"mtr", 0},
+ {"mtd", 0},
+ {"munderover", 0},
+ {"munder", 0},
+ {"mover", 0},
};
-static const char *const htmlattrs[ATTR_MAX] = {
- "http-equiv",
- "content",
- "name",
- "rel",
- "href",
- "type",
- "media",
- "class",
- "style",
- "width",
- "valign",
- "target",
- "id",
+static const char *const roffscales[SCALE_MAX] = {
+ "cm", /* SCALE_CM */
+ "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 */
};
-#ifdef __linux__
-extern int getsubopt(char **, char * const *, char **);
-#endif
+/* Avoid duplicate HTML id= attributes. */
+static struct ohash id_unique;
+
+static void a2width(const char *, struct roffsu *);
+static void print_byte(struct html *, char);
+static void print_endword(struct html *);
+static void print_indent(struct html *);
+static void print_word(struct html *, const char *);
+
+static void print_ctag(struct html *, struct tag *);
+static int print_escape(struct html *, char);
+static int print_encode(struct html *, const char *, const char *, int);
+static void print_href(struct html *, const char *, const char *, int);
+static void print_metaf(struct html *, enum mandoc_esc);
+
void *
-html_alloc(char *outopts)
+html_alloc(const struct manoutput *outopts)
{
struct html *h;
- char *toks[4], *v;
- toks[0] = "style";
- toks[1] = "man";
- toks[2] = "includes";
- toks[3] = NULL;
+ h = mandoc_calloc(1, sizeof(struct html));
- if (NULL == (h = calloc(1, sizeof(struct html))))
- return(NULL);
+ h->tag = NULL;
+ h->style = outopts->style;
+ h->base_man = outopts->man;
+ h->base_includes = outopts->includes;
+ if (outopts->fragment)
+ h->oflags |= HTML_FRAGMENT;
- SLIST_INIT(&h->tags);
- SLIST_INIT(&h->ords);
+ mandoc_ohash_init(&id_unique, 4, 0);
- if (NULL == (h->symtab = chars_init(CHARS_HTML))) {
- free(h);
- return(NULL);
- }
-
- while (outopts && *outopts)
- switch (getsubopt(&outopts, toks, &v)) {
- case (0):
- h->style = v;
- break;
- case (1):
- h->base_man = v;
- break;
- case (2):
- h->base_includes = v;
- break;
- default:
- break;
- }
-
- return(h);
+ return h;
}
-
void
html_free(void *p)
{
struct tag *tag;
- struct ord *ord;
struct html *h;
+ char *cp;
+ unsigned int slot;
h = (struct html *)p;
-
- while ( ! SLIST_EMPTY(&h->ords)) {
- ord = SLIST_FIRST(&h->ords);
- SLIST_REMOVE_HEAD(&h->ords, entry);
- free(ord);
- }
-
- while ( ! SLIST_EMPTY(&h->tags)) {
- tag = SLIST_FIRST(&h->tags);
- SLIST_REMOVE_HEAD(&h->tags, entry);
+ while ((tag = h->tag) != NULL) {
+ h->tag = tag->next;
free(tag);
}
-
- if (h->symtab)
- chars_free(h->symtab);
-
free(h);
-}
+ cp = ohash_first(&id_unique, &slot);
+ while (cp != NULL) {
+ free(cp);
+ cp = ohash_next(&id_unique, &slot);
+ }
+ ohash_delete(&id_unique);
+}
void
print_gen_head(struct html *h)
{
- struct htmlpair tag[4];
-
- 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);
-
- 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);
+ struct tag *t;
+
+ print_otag(h, TAG_META, "?", "charset", "utf-8");
+ if (h->style != NULL) {
+ print_otag(h, TAG_LINK, "?h??", "rel", "stylesheet",
+ h->style, "type", "text/css", "media", "all");
+ return;
}
-}
+ /*
+ * Print a minimal embedded style sheet.
+ */
+
+ t = print_otag(h, TAG_STYLE, "");
+ print_text(h, "table.head, table.foot { width: 100%; }");
+ print_endline(h);
+ print_text(h, "td.head-rtitle, td.foot-os { text-align: right; }");
+ print_endline(h);
+ print_text(h, "td.head-vol { text-align: center; }");
+ print_endline(h);
+ print_text(h, "div.Pp { margin: 1ex 0ex; }");
+ print_endline(h);
+ print_text(h, "div.Nd, div.Bf, div.Op { display: inline; }");
+ print_endline(h);
+ print_text(h, "span.Pa, span.Ad { font-style: italic; }");
+ print_endline(h);
+ print_text(h, "span.Ms { font-weight: bold; }");
+ print_endline(h);
+ print_text(h, "dl.Bl-diag ");
+ print_byte(h, '>');
+ print_text(h, " dt { font-weight: bold; }");
+ print_endline(h);
+ print_text(h, "code.Nm, code.Fl, code.Cm, code.Ic, "
+ "code.In, code.Fd, code.Fn,");
+ print_endline(h);
+ print_text(h, "code.Cd { font-weight: bold; "
+ "font-family: inherit; }");
+ print_tagq(h, t);
+}
static void
-print_spec(struct html *h, const char *p, int len)
+print_metaf(struct html *h, enum mandoc_esc deco)
{
- const char *rhs;
- int i;
- size_t sz;
+ enum htmlfont font;
- rhs = chars_a2ascii(h->symtab, p, (size_t)len, &sz);
+ switch (deco) {
+ case ESCAPE_FONTPREV:
+ font = h->metal;
+ break;
+ case ESCAPE_FONTITALIC:
+ font = HTMLFONT_ITALIC;
+ break;
+ case ESCAPE_FONTBOLD:
+ font = HTMLFONT_BOLD;
+ break;
+ case ESCAPE_FONTBI:
+ font = HTMLFONT_BI;
+ break;
+ case ESCAPE_FONT:
+ case ESCAPE_FONTROMAN:
+ font = HTMLFONT_NONE;
+ break;
+ default:
+ abort();
+ }
- if (NULL == rhs)
- return;
- for (i = 0; i < (int)sz; i++)
- putchar(rhs[i]);
+ if (h->metaf) {
+ print_tagq(h, h->metaf);
+ h->metaf = NULL;
+ }
+
+ h->metal = h->metac;
+ h->metac = font;
+
+ switch (font) {
+ case HTMLFONT_ITALIC:
+ h->metaf = print_otag(h, TAG_I, "");
+ break;
+ case HTMLFONT_BOLD:
+ h->metaf = print_otag(h, TAG_B, "");
+ break;
+ case HTMLFONT_BI:
+ h->metaf = print_otag(h, TAG_B, "");
+ print_otag(h, TAG_I, "");
+ break;
+ default:
+ break;
+ }
}
+char *
+html_make_id(const struct roff_node *n, int unique)
+{
+ const struct roff_node *nch;
+ char *buf, *bufs, *cp;
+ unsigned int slot;
+ int suffix;
+
+ for (nch = n->child; nch != NULL; nch = nch->next)
+ if (nch->type != ROFFT_TEXT)
+ return NULL;
+
+ buf = NULL;
+ deroff(&buf, n);
+ if (buf == NULL)
+ return NULL;
+
+ /* http://www.w3.org/TR/html5/dom.html#the-id-attribute */
+
+ for (cp = buf; *cp != '\0'; cp++)
+ if (*cp == ' ')
+ *cp = '_';
+
+ if (unique == 0)
+ return buf;
+
+ /* Avoid duplicate HTML id= attributes. */
+
+ bufs = NULL;
+ suffix = 1;
+ slot = ohash_qlookup(&id_unique, buf);
+ cp = ohash_find(&id_unique, slot);
+ if (cp != NULL) {
+ while (cp != NULL) {
+ free(bufs);
+ if (++suffix > 127) {
+ free(buf);
+ return NULL;
+ }
+ mandoc_asprintf(&bufs, "%s_%d", buf, suffix);
+ slot = ohash_qlookup(&id_unique, bufs);
+ cp = ohash_find(&id_unique, slot);
+ }
+ free(buf);
+ buf = bufs;
+ }
+ ohash_insert(&id_unique, slot, buf);
+ return buf;
+}
-static void
-print_res(struct html *h, const char *p, int len)
+int
+html_strlen(const char *cp)
{
- const char *rhs;
- int i;
- size_t sz;
+ size_t rsz;
+ int skip, sz;
+
+ /*
+ * Account for escaped sequences within string length
+ * calculations. This follows the logic in term_strlen() as we
+ * must calculate the width of produced strings.
+ * Assume that characters are always width of "1". This is
+ * hacky, but it gets the job done for approximation of widths.
+ */
+
+ sz = 0;
+ skip = 0;
+ while (1) {
+ rsz = strcspn(cp, "\\");
+ if (rsz) {
+ cp += rsz;
+ if (skip) {
+ skip = 0;
+ rsz--;
+ }
+ sz += rsz;
+ }
+ if ('\0' == *cp)
+ break;
+ cp++;
+ switch (mandoc_escape(&cp, NULL, NULL)) {
+ case ESCAPE_ERROR:
+ return sz;
+ case ESCAPE_UNICODE:
+ case ESCAPE_NUMBERED:
+ case ESCAPE_SPECIAL:
+ case ESCAPE_OVERSTRIKE:
+ if (skip)
+ skip = 0;
+ else
+ sz++;
+ break;
+ case ESCAPE_SKIPCHAR:
+ skip = 1;
+ break;
+ default:
+ break;
+ }
+ }
+ return sz;
+}
- rhs = chars_a2res(h->symtab, p, (size_t)len, &sz);
+static int
+print_escape(struct html *h, char c)
+{
- if (NULL == rhs)
- return;
- for (i = 0; i < (int)sz; i++)
- putchar(rhs[i]);
+ switch (c) {
+ case '<':
+ print_word(h, "<");
+ break;
+ case '>':
+ print_word(h, ">");
+ break;
+ case '&':
+ print_word(h, "&");
+ break;
+ case '"':
+ print_word(h, """);
+ break;
+ case ASCII_NBRSP:
+ print_word(h, " ");
+ break;
+ case ASCII_HYPH:
+ print_byte(h, '-');
+ break;
+ case ASCII_BREAK:
+ break;
+ default:
+ return 0;
+ }
+ return 1;
}
-
-static void
-print_escape(struct html *h, const char **p)
+static int
+print_encode(struct html *h, const char *p, const char *pend, int norecurse)
{
- int j, type;
- const char *wp;
+ char numbuf[16];
+ struct tag *t;
+ const char *seq;
+ size_t sz;
+ int c, len, breakline, nospace;
+ enum mandoc_esc esc;
+ static const char rejs[10] = { ' ', '\\', '<', '>', '&', '"',
+ ASCII_NBRSP, ASCII_HYPH, ASCII_BREAK, '\0' };
- wp = *p;
- type = 1;
+ if (pend == NULL)
+ pend = strchr(p, '\0');
- if (0 == *(++wp)) {
- *p = wp;
- return;
- }
+ breakline = 0;
+ nospace = 0;
- if ('(' == *wp) {
- wp++;
- if (0 == *wp || 0 == *(wp + 1)) {
- *p = 0 == *wp ? wp : wp + 1;
- return;
+ while (p < pend) {
+ if (HTML_SKIPCHAR & h->flags && '\\' != *p) {
+ h->flags &= ~HTML_SKIPCHAR;
+ p++;
+ continue;
}
- print_spec(h, wp, 2);
- *p = ++wp;
- return;
+ for (sz = strcspn(p, rejs); sz-- && p < pend; p++)
+ print_byte(h, *p);
+
+ if (breakline &&
+ (p >= pend || *p == ' ' || *p == ASCII_NBRSP)) {
+ t = print_otag(h, TAG_DIV, "");
+ print_text(h, "\\~");
+ print_tagq(h, t);
+ breakline = 0;
+ while (p < pend && (*p == ' ' || *p == ASCII_NBRSP))
+ p++;
+ continue;
+ }
- } else if ('*' == *wp) {
- if (0 == *(++wp)) {
- *p = wp;
- return;
+ if (p >= pend)
+ break;
+
+ if (*p == ' ') {
+ print_endword(h);
+ p++;
+ continue;
}
- switch (*wp) {
- case ('('):
- wp++;
- if (0 == *wp || 0 == *(wp + 1)) {
- *p = 0 == *wp ? wp : wp + 1;
- return;
- }
+ if (print_escape(h, *p++))
+ continue;
- print_res(h, wp, 2);
- *p = ++wp;
- return;
- case ('['):
- type = 0;
+ esc = mandoc_escape(&p, &seq, &len);
+ if (ESCAPE_ERROR == esc)
break;
+
+ switch (esc) {
+ case ESCAPE_FONT:
+ case ESCAPE_FONTPREV:
+ case ESCAPE_FONTBOLD:
+ case ESCAPE_FONTITALIC:
+ case ESCAPE_FONTBI:
+ case ESCAPE_FONTROMAN:
+ if (0 == norecurse)
+ print_metaf(h, esc);
+ continue;
+ case ESCAPE_SKIPCHAR:
+ h->flags |= HTML_SKIPCHAR;
+ continue;
default:
- print_res(h, wp, 1);
- *p = wp;
- return;
+ break;
}
-
- } else if ('f' == *wp) {
- if (0 == *(++wp)) {
- *p = wp;
- return;
+
+ if (h->flags & HTML_SKIPCHAR) {
+ h->flags &= ~HTML_SKIPCHAR;
+ continue;
}
- switch (*wp) {
- case ('B'):
- /* TODO */
+ switch (esc) {
+ case ESCAPE_UNICODE:
+ /* Skip past "u" header. */
+ c = mchars_num2uc(seq + 1, len - 1);
break;
- case ('I'):
- /* TODO */
+ case ESCAPE_NUMBERED:
+ c = mchars_num2char(seq, len);
+ if (c < 0)
+ continue;
break;
- case ('P'):
- /* FALLTHROUGH */
- case ('R'):
- /* TODO */
+ case ESCAPE_SPECIAL:
+ c = mchars_spec2cp(seq, len);
+ if (c <= 0)
+ continue;
break;
- default:
+ case ESCAPE_BREAK:
+ breakline = 1;
+ continue;
+ case ESCAPE_NOSPACE:
+ if ('\0' == *p)
+ nospace = 1;
+ continue;
+ case ESCAPE_OVERSTRIKE:
+ if (len == 0)
+ continue;
+ c = seq[len - 1];
break;
+ default:
+ continue;
}
+ if ((c < 0x20 && c != 0x09) ||
+ (c > 0x7E && c < 0xA0))
+ c = 0xFFFD;
+ if (c > 0x7E) {
+ (void)snprintf(numbuf, sizeof(numbuf), "&#x%.4X;", c);
+ print_word(h, numbuf);
+ } else if (print_escape(h, c) == 0)
+ print_byte(h, c);
+ }
- *p = wp;
- return;
+ return nospace;
+}
- } else if ('[' != *wp) {
- print_spec(h, wp, 1);
- *p = wp;
- return;
+static void
+print_href(struct html *h, const char *name, const char *sec, int man)
+{
+ const char *p, *pp;
+
+ pp = man ? h->base_man : h->base_includes;
+ while ((p = strchr(pp, '%')) != NULL) {
+ print_encode(h, pp, p, 1);
+ if (man && p[1] == 'S') {
+ if (sec == NULL)
+ print_byte(h, '1');
+ else
+ print_encode(h, sec, NULL, 1);
+ } else if ((man && p[1] == 'N') ||
+ (man == 0 && p[1] == 'I'))
+ print_encode(h, name, NULL, 1);
+ else
+ print_encode(h, p, p + 2, 1);
+ pp = p + 2;
}
+ if (*pp != '\0')
+ print_encode(h, pp, NULL, 1);
+}
+
+struct tag *
+print_otag(struct html *h, enum htmltag tag, const char *fmt, ...)
+{
+ va_list ap;
+ struct roffsu mysu, *su;
+ char numbuf[16];
+ struct tag *t;
+ const char *attr;
+ char *arg1, *arg2;
+ double v;
+ int i, have_style, tflags;
- wp++;
- for (j = 0; *wp && ']' != *wp; wp++, j++)
- /* Loop... */ ;
+ tflags = htmltags[tag].flags;
- if (0 == *wp) {
- *p = wp;
- return;
+ /* Push this tag onto the stack of open scopes. */
+
+ if ((tflags & HTML_NOSTACK) == 0) {
+ t = mandoc_malloc(sizeof(struct tag));
+ t->tag = tag;
+ t->next = h->tag;
+ h->tag = t;
+ } else
+ t = NULL;
+
+ if (tflags & HTML_NLBEFORE)
+ print_endline(h);
+ if (h->col == 0)
+ print_indent(h);
+ else if ((h->flags & HTML_NOSPACE) == 0) {
+ if (h->flags & HTML_KEEP)
+ print_word(h, " ");
+ else {
+ if (h->flags & HTML_PREKEEP)
+ h->flags |= HTML_KEEP;
+ print_endword(h);
+ }
}
- if (type)
- print_spec(h, wp - j, j);
+ if ( ! (h->flags & HTML_NONOSPACE))
+ h->flags &= ~HTML_NOSPACE;
else
- print_res(h, wp - j, j);
+ h->flags |= HTML_NOSPACE;
- *p = wp;
-}
+ /* Print out the tag name and attributes. */
+ print_byte(h, '<');
+ print_word(h, htmltags[tag].name);
-static void
-print_encode(struct html *h, const char *p)
-{
+ va_start(ap, fmt);
- for (; *p; p++) {
- if ('\\' == *p) {
- print_escape(h, &p);
- continue;
+ have_style = 0;
+ while (*fmt != '\0') {
+ if (*fmt == 's') {
+ have_style = 1;
+ fmt++;
+ break;
+ }
+
+ /* Parse a non-style attribute and its arguments. */
+
+ arg1 = va_arg(ap, char *);
+ switch (*fmt++) {
+ case 'c':
+ attr = "class";
+ break;
+ case 'h':
+ attr = "href";
+ break;
+ case 'i':
+ attr = "id";
+ break;
+ case '?':
+ attr = arg1;
+ arg1 = va_arg(ap, char *);
+ break;
+ default:
+ abort();
}
- switch (*p) {
- case ('<'):
- printf("<");
+ arg2 = NULL;
+ if (*fmt == 'M')
+ arg2 = va_arg(ap, char *);
+ if (arg1 == NULL)
+ continue;
+
+ /* Print the non-style attributes. */
+
+ print_byte(h, ' ');
+ print_word(h, attr);
+ print_byte(h, '=');
+ print_byte(h, '"');
+ switch (*fmt) {
+ case 'I':
+ print_href(h, arg1, NULL, 0);
+ fmt++;
+ break;
+ case 'M':
+ print_href(h, arg1, arg2, 1);
+ fmt++;
break;
- case ('>'):
- printf(">");
+ case 'R':
+ print_byte(h, '#');
+ print_encode(h, arg1, NULL, 1);
+ fmt++;
break;
- case ('&'):
- printf("&");
+ case 'T':
+ print_encode(h, arg1, NULL, 1);
+ print_word(h, "\" title=\"");
+ print_encode(h, arg1, NULL, 1);
+ fmt++;
break;
default:
- putchar(*p);
+ print_encode(h, arg1, NULL, 1);
break;
}
+ print_byte(h, '"');
}
-}
+ /* Print out styles. */
-struct tag *
-print_otag(struct html *h, enum htmltag tag,
- int sz, const struct htmlpair *p)
-{
- int i;
- struct tag *t;
+ while (*fmt != '\0') {
+ arg1 = NULL;
+ su = NULL;
- if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {
- if (NULL == (t = malloc(sizeof(struct tag))))
- err(EXIT_FAILURE, "malloc");
- t->tag = tag;
- SLIST_INSERT_HEAD(&h->tags, t, entry);
- } else
- t = NULL;
+ /* First letter: input argument type. */
- if ( ! (HTML_NOSPACE & h->flags))
- if ( ! (HTML_CLRLINE & htmltags[tag].flags))
- printf(" ");
+ switch (*fmt++) {
+ case 'h':
+ i = va_arg(ap, int);
+ su = &mysu;
+ SCALE_HS_INIT(su, i);
+ break;
+ case 's':
+ arg1 = va_arg(ap, char *);
+ break;
+ case 'u':
+ su = va_arg(ap, struct roffsu *);
+ break;
+ case 'w':
+ if ((arg2 = va_arg(ap, char *)) != NULL) {
+ su = &mysu;
+ a2width(arg2, su);
+ }
+ if (*fmt == '*') {
+ if (su != NULL && su->unit == SCALE_EN &&
+ su->scale > 5.9 && su->scale < 6.1)
+ su = NULL;
+ fmt++;
+ }
+ if (*fmt == '+') {
+ if (su != NULL) {
+ /* Make even bold text fit. */
+ su->scale *= 1.2;
+ /* Add padding. */
+ su->scale += 3.0;
+ }
+ fmt++;
+ }
+ if (*fmt == '-') {
+ if (su != NULL)
+ su->scale *= -1.0;
+ fmt++;
+ }
+ break;
+ default:
+ abort();
+ }
- printf("<%s", htmltags[tag].name);
- for (i = 0; i < sz; i++) {
- printf(" %s=\"", htmlattrs[p[i].key]);
- assert(p->val);
- print_encode(h, p[i].val);
- printf("\"");
+ /* Second letter: style name. */
+
+ switch (*fmt++) {
+ case 'h':
+ attr = "height";
+ break;
+ case 'i':
+ attr = "text-indent";
+ break;
+ case 'l':
+ attr = "margin-left";
+ break;
+ case 'w':
+ attr = "width";
+ break;
+ case 'W':
+ attr = "min-width";
+ break;
+ case '?':
+ attr = arg1;
+ arg1 = va_arg(ap, char *);
+ break;
+ default:
+ abort();
+ }
+ if (su == NULL && arg1 == NULL)
+ continue;
+
+ if (have_style == 1)
+ print_word(h, " style=\"");
+ else
+ print_byte(h, ' ');
+ print_word(h, attr);
+ print_byte(h, ':');
+ print_byte(h, ' ');
+ if (su != NULL) {
+ v = su->scale;
+ if (su->unit == SCALE_MM && (v /= 100.0) == 0.0)
+ v = 1.0;
+ else if (su->unit == SCALE_BU)
+ v /= 24.0;
+ (void)snprintf(numbuf, sizeof(numbuf), "%.2f", v);
+ print_word(h, numbuf);
+ print_word(h, roffscales[su->unit]);
+ } else
+ print_word(h, arg1);
+ print_byte(h, ';');
+ have_style = 2;
}
- printf(">");
+ if (have_style == 2)
+ print_byte(h, '"');
- h->flags |= HTML_NOSPACE;
- if (HTML_CLRLINE & htmltags[tag].flags)
- h->flags |= HTML_NEWLINE;
+ va_end(ap);
+
+ /* Accommodate for "well-formed" singleton escaping. */
+
+ if (HTML_AUTOCLOSE & htmltags[tag].flags)
+ print_byte(h, '/');
+
+ print_byte(h, '>');
+
+ if (tflags & HTML_NLBEGIN)
+ print_endline(h);
else
- h->flags &= ~HTML_NEWLINE;
+ h->flags |= HTML_NOSPACE;
- return(t);
-}
+ if (tflags & HTML_INDENT)
+ h->indent++;
+ if (tflags & HTML_NOINDENT)
+ h->noindent++;
+ return t;
+}
-/* ARGSUSED */
static void
-print_ctag(struct html *h, enum htmltag tag)
+print_ctag(struct html *h, struct tag *tag)
{
-
- printf("</%s>", htmltags[tag].name);
- if (HTML_CLRLINE & htmltags[tag].flags)
- h->flags |= HTML_NOSPACE;
- if (HTML_CLRLINE & htmltags[tag].flags)
- h->flags |= HTML_NEWLINE;
- else
- h->flags &= ~HTML_NEWLINE;
+ int tflags;
+
+ /*
+ * 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;
+
+ tflags = htmltags[tag->tag].flags;
+
+ if (tflags & HTML_INDENT)
+ h->indent--;
+ if (tflags & HTML_NOINDENT)
+ h->noindent--;
+ if (tflags & HTML_NLEND)
+ print_endline(h);
+ print_indent(h);
+ print_byte(h, '<');
+ print_byte(h, '/');
+ print_word(h, htmltags[tag->tag].name);
+ print_byte(h, '>');
+ if (tflags & HTML_NLAFTER)
+ print_endline(h);
+
+ h->tag = tag->next;
+ free(tag);
}
-
-/* ARGSUSED */
void
-print_gen_doctype(struct html *h)
+print_gen_decls(struct html *h)
{
-
- printf("<!DOCTYPE HTML PUBLIC \"%s\" \"%s\">", DOCTYPE, DTD);
+ print_word(h, "<!DOCTYPE html>");
+ print_endline(h);
}
+void
+print_gen_comment(struct html *h, struct roff_node *n)
+{
+ int wantblank;
+
+ print_word(h, "<!-- This is an automatically generated file."
+ " Do not edit.");
+ h->indent = 1;
+ wantblank = 0;
+ while (n != NULL && n->type == ROFFT_COMMENT) {
+ if (strstr(n->string, "-->") == NULL &&
+ (wantblank || *n->string != '\0')) {
+ print_endline(h);
+ print_indent(h);
+ print_word(h, n->string);
+ wantblank = *n->string != '\0';
+ }
+ n = n->next;
+ }
+ if (wantblank)
+ print_endline(h);
+ print_word(h, " -->");
+ print_endline(h);
+ h->indent = 0;
+}
void
-print_text(struct html *h, const char *p)
+print_text(struct html *h, const char *word)
{
+ if (h->col && (h->flags & HTML_NOSPACE) == 0) {
+ if ( ! (HTML_KEEP & h->flags)) {
+ if (HTML_PREKEEP & h->flags)
+ h->flags |= HTML_KEEP;
+ print_endword(h);
+ } else
+ print_word(h, " ");
+ }
- if (*p && 0 == *(p + 1))
- switch (*p) {
- case('.'):
- /* FALLTHROUGH */
- 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(NULL == h->metaf);
+ switch (h->metac) {
+ case HTMLFONT_ITALIC:
+ h->metaf = print_otag(h, TAG_I, "");
+ break;
+ case HTMLFONT_BOLD:
+ h->metaf = print_otag(h, TAG_B, "");
+ break;
+ case HTMLFONT_BI:
+ h->metaf = print_otag(h, TAG_B, "");
+ print_otag(h, TAG_I, "");
+ break;
+ default:
+ print_indent(h);
+ break;
+ }
- if ( ! (h->flags & HTML_NOSPACE))
- printf(" ");
+ assert(word);
+ if ( ! print_encode(h, word, NULL, 0)) {
+ if ( ! (h->flags & HTML_NONOSPACE))
+ h->flags &= ~HTML_NOSPACE;
+ h->flags &= ~HTML_NONEWLINE;
+ } else
+ h->flags |= HTML_NOSPACE | HTML_NONEWLINE;
- h->flags &= ~HTML_NOSPACE;
- h->flags &= ~HTML_NEWLINE;
-
- if (p)
- print_encode(h, p);
-
- if (*p && 0 == *(p + 1))
- switch (*p) {
- case('('):
- /* FALLTHROUGH */
- case('['):
- /* FALLTHROUGH */
- case('{'):
- h->flags |= HTML_NOSPACE;
- break;
- default:
- break;
- }
-}
+ if (h->metaf) {
+ print_tagq(h, h->metaf);
+ h->metaf = NULL;
+ }
+ h->flags &= ~HTML_IGNDELIM;
+}
void
print_tagq(struct html *h, const struct tag *until)
{
struct tag *tag;
- while ( ! SLIST_EMPTY(&h->tags)) {
- tag = SLIST_FIRST(&h->tags);
- print_ctag(h, tag->tag);
- SLIST_REMOVE_HEAD(&h->tags, entry);
- free(tag);
+ while ((tag = h->tag) != NULL) {
+ print_ctag(h, tag);
if (until && tag == until)
return;
}
}
-
void
print_stagq(struct html *h, const struct tag *suntil)
{
struct tag *tag;
- while ( ! SLIST_EMPTY(&h->tags)) {
- tag = SLIST_FIRST(&h->tags);
+ while ((tag = h->tag) != NULL) {
if (suntil && tag == suntil)
return;
- print_ctag(h, tag->tag);
- SLIST_REMOVE_HEAD(&h->tags, entry);
- free(tag);
+ print_ctag(h, tag);
}
}
-
void
-bufinit(struct html *h)
+print_paragraph(struct html *h)
{
+ struct tag *t;
- h->buf[0] = '\0';
- h->buflen = 0;
+ t = print_otag(h, TAG_DIV, "c", "Pp");
+ print_tagq(h, t);
}
-void
-bufcat_style(struct html *h, const char *key, const char *val)
-{
+/***********************************************************************
+ * Low level output functions.
+ * They implement line breaking using a short static buffer.
+ ***********************************************************************/
- bufcat(h, key);
- bufncat(h, ":", 1);
- bufcat(h, val);
- bufncat(h, ";", 1);
-}
-
-
-void
-bufcat(struct html *h, const char *p)
+/*
+ * Buffer one HTML output byte.
+ * If the buffer is full, flush and deactivate it and start a new line.
+ * If the buffer is inactive, print directly.
+ */
+static void
+print_byte(struct html *h, char c)
{
+ if ((h->flags & HTML_BUFFER) == 0) {
+ putchar(c);
+ h->col++;
+ return;
+ }
- bufncat(h, p, strlen(p));
-}
-
-
-void
-buffmt(struct html *h, const char *fmt, ...)
-{
- va_list ap;
+ if (h->col + h->bufcol < sizeof(h->buf)) {
+ h->buf[h->bufcol++] = c;
+ return;
+ }
- 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);
+ putchar('\n');
+ h->col = 0;
+ print_indent(h);
+ putchar(' ');
+ putchar(' ');
+ fwrite(h->buf, h->bufcol, 1, stdout);
+ putchar(c);
+ h->col = (h->indent + 1) * 2 + h->bufcol + 1;
+ h->bufcol = 0;
+ h->flags &= ~HTML_BUFFER;
}
-
+/*
+ * If something was printed on the current output line, end it.
+ * Not to be called right after print_indent().
+ */
void
-bufncat(struct html *h, const char *p, size_t sz)
+print_endline(struct html *h)
{
+ if (h->col == 0)
+ return;
- if (h->buflen + sz > BUFSIZ - 1)
- sz = BUFSIZ - 1 - h->buflen;
-
- (void)strncat(h->buf, p, sz);
- h->buflen += sz;
+ if (h->bufcol) {
+ putchar(' ');
+ fwrite(h->buf, h->bufcol, 1, stdout);
+ h->bufcol = 0;
+ }
+ putchar('\n');
+ h->col = 0;
+ h->flags |= HTML_NOSPACE;
+ h->flags &= ~HTML_BUFFER;
}
-
-void
-buffmt_includes(struct html *h, const char *name)
+/*
+ * Flush the HTML output buffer.
+ * If it is inactive, activate it.
+ */
+static void
+print_endword(struct html *h)
{
- const char *p, *pp;
+ if (h->noindent) {
+ print_byte(h, ' ');
+ return;
+ }
- pp = h->base_includes;
- while ((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 ((h->flags & HTML_BUFFER) == 0) {
+ h->col++;
+ h->flags |= HTML_BUFFER;
+ } else if (h->bufcol) {
+ putchar(' ');
+ fwrite(h->buf, h->bufcol, 1, stdout);
+ h->col += h->bufcol + 1;
}
- if (pp)
- bufcat(h, pp);
+ h->bufcol = 0;
}
-
-void
-buffmt_man(struct html *h,
- const char *name, const char *sec)
+/*
+ * If at the beginning of a new output line,
+ * perform indentation and mark the line as containing output.
+ * Make sure to really produce some output right afterwards,
+ * but do not use print_otag() for producing it.
+ */
+static void
+print_indent(struct html *h)
{
- const char *p, *pp;
+ size_t i;
- pp = h->base_man;
- while ((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 (h->col)
+ return;
+
+ if (h->noindent == 0) {
+ h->col = h->indent * 2;
+ for (i = 0; i < h->col; i++)
+ putchar(' ');
}
- if (pp)
- bufcat(h, pp);
+ h->flags &= ~HTML_NOSPACE;
}
-
-void
-bufcat_su(struct html *h, const char *p, const struct roffsu *su)
+/*
+ * Print or buffer some characters
+ * depending on the current HTML output buffer state.
+ */
+static void
+print_word(struct html *h, const char *cp)
{
- int v;
- 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;
- }
+ while (*cp != '\0')
+ print_byte(h, *cp++);
+}
- buffmt(h, "%s: %d%s;", p, v, u);
+/*
+ * Calculate the scaling unit passed in a `-width' argument. This uses
+ * either a native scaling unit (e.g., 1i, 2m) or the string length of
+ * the value.
+ */
+static void
+a2width(const char *p, struct roffsu *su)
+{
+ const char *end;
+
+ end = a2roffsu(p, su, SCALE_MAX);
+ if (end == NULL || *end != '\0') {
+ su->unit = SCALE_EN;
+ su->scale = html_strlen(p);
+ } else if (su->scale < 0.0)
+ su->scale = 0.0;
}
git.ckatri.com / mandoc.git / blobdiff