-/* $Id: html.c,v 1.218 2017/07/14 16:28:38 schwarze Exp $ */
+/* $Id: html.c,v 1.239 2018/08/16 13:54:06 schwarze Exp $ */
/*
* Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
- * Copyright (c) 2011-2015, 2017 Ingo Schwarze <schwarze@openbsd.org>
+ * 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
#include <assert.h>
#include <ctype.h>
#include <stdarg.h>
+#include <stddef.h>
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <unistd.h>
#include "mandoc_aux.h"
+#include "mandoc_ohash.h"
#include "mandoc.h"
#include "roff.h"
#include "out.h"
{"meta", HTML_NOSTACK | HTML_AUTOCLOSE | HTML_NLALL},
{"title", HTML_NLAROUND},
{"div", HTML_NLAROUND},
+ {"div", 0},
{"h1", HTML_NLAROUND},
{"h2", HTML_NLAROUND},
{"span", 0},
{"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},
{"mover", 0},
};
-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 */
-};
+/* 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 *);
if (outopts->fragment)
h->oflags |= HTML_FRAGMENT;
+ mandoc_ohash_init(&id_unique, 4, 0);
+
return h;
}
{
struct tag *tag;
struct html *h;
+ char *cp;
+ unsigned int slot;
h = (struct html *)p;
-
while ((tag = h->tag) != NULL) {
h->tag = tag->next;
free(tag);
}
-
free(h);
+
+ cp = ohash_first(&id_unique, &slot);
+ while (cp != NULL) {
+ free(cp);
+ cp = ohash_next(&id_unique, &slot);
+ }
+ ohash_delete(&id_unique);
}
void
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 default style-sheet.
+ * Print a minimal embedded style sheet.
*/
t = print_otag(h, TAG_STYLE, "");
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);
-
- if (h->style)
- print_otag(h, TAG_LINK, "?h??", "rel", "stylesheet",
- h->style, "type", "text/css", "media", "all");
}
static void
}
char *
-html_make_id(const struct roff_node *n)
+html_make_id(const struct roff_node *n, int unique)
{
const struct roff_node *nch;
- char *buf, *cp;
+ char *buf, *bufs, *cp;
+ unsigned int slot;
+ int suffix;
for (nch = n->child; nch != NULL; nch = nch->next)
if (nch->type != ROFFT_TEXT)
buf = NULL;
deroff(&buf, n);
+ if (buf == NULL)
+ return NULL;
- /* http://www.w3.org/TR/html5/dom.html#the-id-attribute */
+ /*
+ * In ID attributes, only use ASCII characters that are
+ * permitted in URL-fragment strings according to the
+ * explicit list at:
+ * https://url.spec.whatwg.org/#url-fragment-string
+ */
for (cp = buf; *cp != '\0'; cp++)
- if (*cp == ' ')
+ if (isalnum((unsigned char)*cp) == 0 &&
+ strchr("!$&'()*+,-./:;=?@_~", *cp) == NULL)
*cp = '_';
- return buf;
-}
-
-int
-html_strlen(const char *cp)
-{
- 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--;
+ 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;
}
- 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;
+ mandoc_asprintf(&bufs, "%s_%d", buf, suffix);
+ slot = ohash_qlookup(&id_unique, bufs);
+ cp = ohash_find(&id_unique, slot);
}
+ free(buf);
+ buf = bufs;
}
- return sz;
+ ohash_insert(&id_unique, slot, buf);
+ return buf;
}
static int
if (c <= 0)
continue;
break;
+ case ESCAPE_DEVICE:
+ print_word(h, "html");
+ continue;
case ESCAPE_BREAK:
breakline = 1;
continue;
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;
+ int tflags;
tflags = htmltags[tag].flags;
va_start(ap, fmt);
- have_style = 0;
while (*fmt != '\0') {
- if (*fmt == 's') {
- have_style = 1;
- fmt++;
- break;
- }
- /* Parse a non-style attribute and its arguments. */
+ /* Parse attributes and arguments. */
arg1 = va_arg(ap, char *);
+ arg2 = NULL;
switch (*fmt++) {
case 'c':
attr = "class";
case 'i':
attr = "id";
break;
+ case 's':
+ attr = "style";
+ arg2 = va_arg(ap, char *);
+ break;
case '?':
attr = arg1;
arg1 = va_arg(ap, char *);
default:
abort();
}
- arg2 = NULL;
if (*fmt == 'M')
arg2 = va_arg(ap, char *);
if (arg1 == NULL)
continue;
- /* Print the non-style attributes. */
+ /* Print the attributes. */
print_byte(h, ' ');
print_word(h, attr);
fmt++;
break;
default:
- print_encode(h, arg1, NULL, 1);
- break;
- }
- print_byte(h, '"');
- }
-
- /* Print out styles. */
-
- while (*fmt != '\0') {
- arg1 = NULL;
- su = NULL;
-
- /* First letter: input argument type. */
-
- 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) {
- if (*fmt == '+')
- fmt++;
- if (*fmt == '-')
- fmt++;
- break;
- }
- su = &mysu;
- a2width(arg2, su);
- if (*fmt == '+') {
- /* Increase to make even bold text fit. */
- su->scale *= 1.2;
- /* Add padding. */
- su->scale += 3.0;
- fmt++;
- }
- if (*fmt == '-') {
- su->scale *= -1.0;
- fmt++;
+ if (arg2 == NULL)
+ print_encode(h, arg1, NULL, 1);
+ else {
+ print_word(h, arg1);
+ print_byte(h, ':');
+ print_byte(h, ' ');
+ print_word(h, arg2);
+ print_byte(h, ';');
}
break;
- default:
- abort();
}
-
- /* 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;
- }
- if (have_style == 2)
print_byte(h, '"');
-
+ }
va_end(ap);
/* Accommodate for "well-formed" singleton escaping. */
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 *word)
{
while (*cp != '\0')
print_byte(h, *cp++);
}
-
-/*
- * 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