-/* $Id: html.c,v 1.29 2009/09/16 09:41:24 kristaps Exp $ */
+/* $Id: html.c,v 1.84 2009/11/12 08:21:05 kristaps Exp $ */
/*
* Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
*
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
+#include <sys/types.h>
+
#include <assert.h>
-#include <err.h>
+#include <ctype.h>
+#include <stdarg.h>
#include <stdio.h>
+#include <stdint.h>
#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "out.h"
+#include "chars.h"
+#include "html.h"
+#include "main.h"
-#include "mdoc.h"
-#include "man.h"
+#define UNCONST(a) ((void *)(uintptr_t)(const void *)(a))
#define DOCTYPE "-//W3C//DTD HTML 4.01//EN"
#define DTD "http://www.w3.org/TR/html4/strict.dtd"
-enum htmltag {
- TAG_HTML,
- TAG_HEAD,
- TAG_BODY,
- TAG_META,
- TAG_TITLE,
- TAG_DIV,
- TAG_H1,
- TAG_H2,
- TAG_P,
- TAG_SPAN,
- TAG_LINK,
- TAG_MAX
-};
-
-enum htmlattr {
- ATTR_HTTPEQUIV,
- ATTR_CONTENT,
- ATTR_NAME,
- ATTR_REL,
- ATTR_HREF,
- ATTR_TYPE,
- ATTR_MEDIA,
- ATTR_CLASS,
- ATTR_MAX
-};
-
struct htmldata {
- char *name;
+ const char *name;
int flags;
-#define HTML_BLOCK (1 << 0)
+#define HTML_CLRLINE (1 << 0)
+#define HTML_NOSTACK (1 << 1)
};
static const struct htmldata htmltags[TAG_MAX] = {
- {"html", HTML_BLOCK}, /* TAG_HTML */
- {"head", HTML_BLOCK}, /* TAG_HEAD */
- {"body", HTML_BLOCK}, /* TAG_BODY */
- {"meta", HTML_BLOCK}, /* TAG_META */
- {"title", HTML_BLOCK}, /* TAG_TITLE */
- {"div", HTML_BLOCK}, /* TAG_DIV */
+ {"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_BLOCK}, /* TAG_P */
+ {"p", HTML_CLRLINE}, /* TAG_P */
{"span", 0}, /* TAG_SPAN */
- {"link", HTML_BLOCK}, /* TAG_LINK */
+ {"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 */
};
-static const char *const htmlattrs[ATTR_MAX] = {
+static const char *const htmlattrs[ATTR_MAX] = {
"http-equiv",
"content",
"name",
"href",
"type",
"media",
- "class"
-};
-
-struct htmlpair {
- enum htmlattr key;
- char *val;
+ "class",
+ "style",
+ "width",
+ "valign",
+ "target",
+ "id",
+ "summary",
};
-struct html {
- int flags;
-#define HTML_NOSPACE (1 << 0)
-};
+#ifdef __linux__
+extern int getsubopt(char **, char * const *, char **);
+#endif
-#define MDOC_ARGS const struct mdoc_meta *m, \
- const struct mdoc_node *n, \
- struct html *h
-#define MAN_ARGS const struct man_meta *m, \
- const struct man_node *n, \
- struct html *h
-struct htmlmdoc {
- int (*pre)(MDOC_ARGS);
- void (*post)(MDOC_ARGS);
-};
-static void print_gen_doctype(struct html *);
-static void print_gen_head(struct html *);
-static void print_mdoc(MDOC_ARGS);
-static void print_mdoc_head(MDOC_ARGS);
-static void print_mdoc_node(MDOC_ARGS);
-static void print_man(MAN_ARGS);
-static void print_man_head(MAN_ARGS);
-static void print_man_body(MAN_ARGS);
-static void print_otag(struct html *, enum htmltag,
- int, const struct htmlpair *);
+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_encode(const char *);
-static void print_text(struct html *, const char *);
-static int mdoc_root_pre(MDOC_ARGS);
-static void mdoc_root_post(MDOC_ARGS);
-
-static int mdoc_nd_pre(MDOC_ARGS);
-static int mdoc_nm_pre(MDOC_ARGS);
-static void mdoc_nm_post(MDOC_ARGS);
-static int mdoc_pp_pre(MDOC_ARGS);
-static int mdoc_sh_pre(MDOC_ARGS);
-static void mdoc_sh_post(MDOC_ARGS);
-static int mdoc_ss_pre(MDOC_ARGS);
-static void mdoc_ss_post(MDOC_ARGS);
-
-static const struct htmlmdoc mdocs[MDOC_MAX] = {
- {NULL, NULL}, /* Ap */
- {NULL, NULL}, /* Dd */
- {NULL, NULL}, /* Dt */
- {NULL, NULL}, /* Os */
- {mdoc_sh_pre, mdoc_sh_post }, /* Sh */
- {mdoc_ss_pre, mdoc_ss_post }, /* Ss */
- {mdoc_pp_pre, NULL}, /* Pp */
- {NULL, NULL}, /* D1 */
- {NULL, NULL}, /* Dl */
- {NULL, NULL}, /* Bd */
- {NULL, NULL}, /* Ed */
- {NULL, NULL}, /* Bl */
- {NULL, NULL}, /* El */
- {NULL, NULL}, /* It */
- {NULL, NULL}, /* Ad */
- {NULL, NULL}, /* An */
- {NULL, NULL}, /* Ar */
- {NULL, NULL}, /* Cd */
- {NULL, NULL}, /* Cm */
- {NULL, NULL}, /* Dv */
- {NULL, NULL}, /* Er */
- {NULL, NULL}, /* Ev */
- {NULL, NULL}, /* Ex */
- {NULL, NULL}, /* Fa */
- {NULL, NULL}, /* Fd */
- {NULL, NULL}, /* Fl */
- {NULL, NULL}, /* Fn */
- {NULL, NULL}, /* Ft */
- {NULL, NULL}, /* Ic */
- {NULL, NULL}, /* In */
- {NULL, NULL}, /* Li */
- {mdoc_nd_pre, NULL}, /* Nd */
- {mdoc_nm_pre, mdoc_nm_post}, /* Nm */
- {NULL, NULL}, /* Op */
- {NULL, NULL}, /* Ot */
- {NULL, NULL}, /* Pa */
- {NULL, NULL}, /* Rv */
- {NULL, NULL}, /* St */
- {NULL, NULL}, /* Va */
- {NULL, NULL}, /* Vt */
- {NULL, NULL}, /* Xr */
- {NULL, NULL}, /* %A */
- {NULL, NULL}, /* %B */
- {NULL, NULL}, /* %D */
- {NULL, NULL}, /* %I */
- {NULL, NULL}, /* %J */
- {NULL, NULL}, /* %N */
- {NULL, NULL}, /* %O */
- {NULL, NULL}, /* %P */
- {NULL, NULL}, /* %R */
- {NULL, NULL}, /* %T */
- {NULL, NULL}, /* %V */
- {NULL, NULL}, /* Ac */
- {NULL, NULL}, /* Ao */
- {NULL, NULL}, /* Aq */
- {NULL, NULL}, /* At */
- {NULL, NULL}, /* Bc */
- {NULL, NULL}, /* Bf */
- {NULL, NULL}, /* Bo */
- {NULL, NULL}, /* Bq */
- {NULL, NULL}, /* Bsx */
- {NULL, NULL}, /* Bx */
- {NULL, NULL}, /* Db */
- {NULL, NULL}, /* Dc */
- {NULL, NULL}, /* Do */
- {NULL, NULL}, /* Dq */
- {NULL, NULL}, /* Ec */
- {NULL, NULL}, /* Ef */
- {NULL, NULL}, /* Em */
- {NULL, NULL}, /* Eo */
- {NULL, NULL}, /* Fx */
- {NULL, NULL}, /* Ms */
- {NULL, NULL}, /* No */
- {NULL, NULL}, /* Ns */
- {NULL, NULL}, /* Nx */
- {NULL, NULL}, /* Ox */
- {NULL, NULL}, /* Pc */
- {NULL, NULL}, /* Pf */
- {NULL, NULL}, /* Po */
- {NULL, NULL}, /* Pq */
- {NULL, NULL}, /* Qc */
- {NULL, NULL}, /* Ql */
- {NULL, NULL}, /* Qo */
- {NULL, NULL}, /* Qq */
- {NULL, NULL}, /* Re */
- {NULL, NULL}, /* Rs */
- {NULL, NULL}, /* Sc */
- {NULL, NULL}, /* So */
- {NULL, NULL}, /* Sq */
- {NULL, NULL}, /* Sm */
- {NULL, NULL}, /* Sx */
- {NULL, NULL}, /* Sy */
- {NULL, NULL}, /* Tn */
- {NULL, NULL}, /* Ux */
- {NULL, NULL}, /* Xc */
- {NULL, NULL}, /* Xo */
- {NULL, NULL}, /* Fo */
- {NULL, NULL}, /* Fc */
- {NULL, NULL}, /* Oo */
- {NULL, NULL}, /* Oc */
- {NULL, NULL}, /* Bk */
- {NULL, NULL}, /* Ek */
- {NULL, NULL}, /* Bt */
- {NULL, NULL}, /* Hf */
- {NULL, NULL}, /* Fr */
- {NULL, NULL}, /* Ud */
- {NULL, NULL}, /* Lb */
- {NULL, NULL}, /* Lp */
- {NULL, NULL}, /* Lk */
- {NULL, NULL}, /* Mt */
- {NULL, NULL}, /* Brq */
- {NULL, NULL}, /* Bro */
- {NULL, NULL}, /* Brc */
- {NULL, NULL}, /* %C */
- {NULL, NULL}, /* Es */
- {NULL, NULL}, /* En */
- {NULL, NULL}, /* Dx */
- {NULL, NULL}, /* %Q */
- {NULL, NULL}, /* br */
- {NULL, NULL}, /* sp */
-};
+static void print_encode(struct html *, const char *);
-int
-html_mdoc(void *arg, const struct mdoc *m)
-{
- struct html *h;
-
- h = (struct html *)arg;
-
- print_gen_doctype(h);
- print_otag(h, TAG_HTML, 0, NULL);
- print_mdoc(mdoc_meta(m), mdoc_node(m), h);
- print_ctag(h, TAG_HTML);
- printf("\n");
- return(1);
-}
-
-
-int
-html_man(void *arg, const struct man *m)
+void *
+html_alloc(char *outopts)
{
struct html *h;
+ const char *toks[4];
+ char *v;
+
+ toks[0] = "style";
+ toks[1] = "man";
+ toks[2] = "includes";
+ toks[3] = NULL;
+
+ h = calloc(1, sizeof(struct html));
+ if (NULL == h) {
+ perror(NULL);
+ exit(EXIT_FAILURE);
+ }
- h = (struct html *)arg;
-
- print_gen_doctype(h);
- print_otag(h, TAG_HTML, 0, NULL);
- print_man(man_meta(m), man_node(m), h);
- print_ctag(h, TAG_HTML);
- printf("\n");
- return(1);
-}
-
+ h->tags.head = NULL;
+ h->ords.head = NULL;
+ h->symtab = chars_init(CHARS_HTML);
-void *
-html_alloc(void)
-{
+ while (outopts && *outopts)
+ switch (getsubopt(&outopts, UNCONST(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(calloc(1, sizeof(struct html)));
+ return(h);
}
void
html_free(void *p)
{
+ struct tag *tag;
+ struct ord *ord;
+ struct html *h;
- free(p);
-}
+ h = (struct html *)p;
+ while ((ord = h->ords.head) != NULL) {
+ h->ords.head = ord->next;
+ free(ord);
+ }
-static void
-print_mdoc(MDOC_ARGS)
-{
+ while ((tag = h->tags.head) != NULL) {
+ h->tags.head = tag->next;
+ free(tag);
+ }
+
+ if (h->symtab)
+ chars_free(h->symtab);
- print_otag(h, TAG_HEAD, 0, NULL);
- print_mdoc_head(m, n, h);
- print_ctag(h, TAG_HEAD);
- print_otag(h, TAG_BODY, 0, NULL);
- print_mdoc_node(m, n, h);
- print_ctag(h, TAG_BODY);
+ free(h);
}
-static void
+void
print_gen_head(struct html *h)
{
- struct htmlpair meta0[2];
- struct htmlpair meta1[2];
- struct htmlpair link[4];
-
- meta0[0].key = ATTR_HTTPEQUIV;
- meta0[0].val = "Content-Type";
- meta0[1].key = ATTR_CONTENT;
- meta0[1].val = "text/html; charest-utf-8";
-
- meta1[0].key = ATTR_NAME;
- meta1[0].val = "resource-type";
- meta1[1].key = ATTR_CONTENT;
- meta1[1].val = "document";
-
- link[0].key = ATTR_REL;
- link[0].val = "stylesheet";
- link[1].key = ATTR_HREF;
- link[1].val = "style.css";
- link[2].key = ATTR_TYPE;
- link[2].val = "text/css";
- link[3].key = ATTR_MEDIA;
- link[3].val = "all";
-
- print_otag(h, TAG_META, 2, meta0);
- print_otag(h, TAG_META, 2, meta1);
- print_otag(h, TAG_LINK, 4, link);
-}
-
-
-static void
-print_mdoc_head(MDOC_ARGS)
-{
-
- print_gen_head(h);
- print_otag(h, TAG_TITLE, 0, NULL);
- print_encode(m->title);
- print_ctag(h, TAG_TITLE);
-}
-
-
-static int
-mdoc_root_pre(MDOC_ARGS)
-{
- struct htmlpair div;
-
- div.key = ATTR_CLASS;
- div.val = "body";
-
- print_otag(h, TAG_DIV, 1, &div);
- return(1);
-}
-
-
-static void
-mdoc_root_post(MDOC_ARGS)
-{
-
- print_ctag(h, TAG_DIV);
-}
-
-
-static int
-mdoc_ss_pre(MDOC_ARGS)
-{
-
- if (MDOC_BODY == n->type)
- print_otag(h, TAG_P, 0, NULL);
- if (MDOC_HEAD == n->type)
- print_otag(h, TAG_H2, 0, NULL);
- return(1);
+ 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);
+ }
}
static void
-mdoc_ss_post(MDOC_ARGS)
-{
-
- if (MDOC_BODY == n->type)
- print_ctag(h, TAG_P);
- if (MDOC_HEAD == n->type)
- print_ctag(h, TAG_H2);
-}
-
-
-static int
-mdoc_pp_pre(MDOC_ARGS)
-{
-
- print_otag(h, TAG_P, 0, NULL);
- return(0);
-}
-
-
-static int
-mdoc_nd_pre(MDOC_ARGS)
-{
-
- if (MDOC_BODY == n->type)
- print_text(h, "--");
- return(1);
-}
-
-
-static int
-mdoc_nm_pre(MDOC_ARGS)
+print_spec(struct html *h, const char *p, size_t len)
{
- struct htmlpair class;
-
- class.key = ATTR_CLASS;
- class.val = "name";
+ const char *rhs;
+ size_t sz;
- print_otag(h, TAG_SPAN, 1, &class);
- if (NULL == n->child)
- print_text(h, m->name);
+ rhs = chars_a2ascii(h->symtab, p, len, &sz);
- return(1);
+ if (NULL == rhs)
+ return;
+ fwrite(rhs, 1, sz, stdout);
}
static void
-mdoc_nm_post(MDOC_ARGS)
+print_res(struct html *h, const char *p, size_t len)
{
+ const char *rhs;
+ size_t sz;
- print_ctag(h, TAG_SPAN);
-}
-
-
-static int
-mdoc_sh_pre(MDOC_ARGS)
-{
+ rhs = chars_a2res(h->symtab, p, len, &sz);
- if (MDOC_BODY == n->type)
- print_otag(h, TAG_P, 0, NULL);
- if (MDOC_HEAD == n->type)
- print_otag(h, TAG_H1, 0, NULL);
- return(1);
+ if (NULL == rhs)
+ return;
+ fwrite(rhs, 1, sz, stdout);
}
static void
-mdoc_sh_post(MDOC_ARGS)
+print_encode(struct html *h, const char *p)
{
+ size_t sz;
+ int len;
+ const char *seq;
+ enum roffdeco deco;
+
+ for (; *p; p++) {
+ sz = strcspn(p, "\\<>&");
+
+ fwrite(p, 1, sz, stdout);
+ p += /* LINTED */
+ sz;
+
+ if ('<' == *p) {
+ printf("<");
+ continue;
+ } else if ('>' == *p) {
+ printf(">");
+ continue;
+ } else if ('&' == *p) {
+ printf("&");
+ continue;
+ } else if ('\0' == *p)
+ break;
- if (MDOC_BODY == n->type)
- print_ctag(h, TAG_P);
- if (MDOC_HEAD == n->type)
- print_ctag(h, TAG_H1);
-}
-
-
-static void
-print_mdoc_node(MDOC_ARGS)
-{
- int child;
-
- child = 1;
+ seq = ++p;
+ len = a2roffdeco(&deco, &seq, &sz);
- switch (n->type) {
- case (MDOC_ROOT):
- child = mdoc_root_pre(m, n, h);
- break;
- case (MDOC_TEXT):
- print_text(h, n->string);
- break;
- default:
- if (mdocs[n->tok].pre)
- child = (*mdocs[n->tok].pre)(m, n, h);
- break;
- }
+ switch (deco) {
+ case (DECO_RESERVED):
+ print_res(h, seq, sz);
+ break;
+ case (DECO_SPECIAL):
+ print_spec(h, seq, sz);
+ break;
+ default:
+ break;
+ }
- if (child && n->child)
- print_mdoc_node(m, n->child, h);
+ p += len - 1;
- switch (n->type) {
- case (MDOC_ROOT):
- mdoc_root_post(m, n, h);
- break;
- case (MDOC_TEXT):
- break;
- default:
- if (mdocs[n->tok].post)
- (*mdocs[n->tok].post)(m, n, h);
- break;
+ if (DECO_NOSPACE == deco && '\0' == *(p + 1))
+ h->flags |= HTML_NOSPACE;
}
-
- if (n->next)
- print_mdoc_node(m, n->next, h);
-}
-
-
-static void
-print_man(MAN_ARGS)
-{
-
- print_otag(h, TAG_HEAD, 0, NULL);
- print_man_head(m, n, h);
- print_ctag(h, TAG_HEAD);
- print_otag(h, TAG_BODY, 0, NULL);
- print_man_body(m, n, h);
- print_ctag(h, TAG_BODY);
-}
-
-
-static void
-print_man_head(MAN_ARGS)
-{
-
- print_gen_head(h);
- print_otag(h, TAG_TITLE, 0, NULL);
- print_encode(m->title);
- print_ctag(h, TAG_TITLE);
-}
-
-
-static void
-print_man_body(MAN_ARGS)
-{
-}
-
-
-static void
-print_encode(const char *p)
-{
-
- printf("%s", p); /* XXX */
}
-static void
+struct tag *
print_otag(struct html *h, enum htmltag tag,
int sz, const struct htmlpair *p)
{
int i;
+ struct tag *t;
+
+ 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_BLOCK & htmltags[tag].flags))
- printf(" ");
+ if ( ! (HTML_CLRLINE & htmltags[tag].flags))
+ putchar(' ');
printf("<%s", htmltags[tag].name);
for (i = 0; i < sz; i++) {
printf(" %s=\"", htmlattrs[p[i].key]);
assert(p->val);
- print_encode(p[i].val);
- printf("\"");
+ print_encode(h, p[i].val);
+ putchar('\"');
}
- printf(">");
+ putchar('>');
h->flags |= HTML_NOSPACE;
+ if (HTML_CLRLINE & htmltags[tag].flags)
+ h->flags |= HTML_NEWLINE;
+ else
+ h->flags &= ~HTML_NEWLINE;
+ return(t);
}
{
printf("</%s>", htmltags[tag].name);
- if (HTML_BLOCK & htmltags[tag].flags)
+ if (HTML_CLRLINE & htmltags[tag].flags) {
h->flags |= HTML_NOSPACE;
+ h->flags |= HTML_NEWLINE;
+ putchar('\n');
+ } else
+ h->flags &= ~HTML_NEWLINE;
}
/* ARGSUSED */
-static void
+void
print_gen_doctype(struct html *h)
{
- printf("<!DOCTYPE HTML PUBLIC \"%s\" \"%s\">\n", DOCTYPE, DTD);
+ printf("<!DOCTYPE HTML PUBLIC \"%s\" \"%s\">", DOCTYPE, DTD);
}
-static void
+void
print_text(struct html *h, const char *p)
{
case(']'):
/* FALLTHROUGH */
case('}'):
- h->flags |= HTML_NOSPACE;
+ if ( ! (HTML_IGNDELIM & h->flags))
+ h->flags |= HTML_NOSPACE;
+ break;
default:
break;
}
if ( ! (h->flags & HTML_NOSPACE))
- printf(" ");
+ putchar(' ');
+
h->flags &= ~HTML_NOSPACE;
+ h->flags &= ~HTML_NEWLINE;
if (p)
- print_encode(p);
+ print_encode(h, p);
if (*p && 0 == *(p + 1))
switch (*p) {
/* 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) {
+ 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;
+ 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;
+ 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;
+ }
+
+ if (su->pt)
+ buffmt(h, "%s: %f%s;", p, v, u);
+ else
+ /* LINTED */
+ buffmt(h, "%s: %d%s;", p, (int)v, u);
+}
+
+
+void
+html_idcat(char *dst, const char *src, int sz)
+{
+ int ssz;
+
+ assert(sz);
+
+ /* Cf. <http://www.w3.org/TR/html4/types.html#h-6.2>. */
+
+ 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;
+ }
+}
git.ckatri.com / mandoc.git / blobdiff