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Revision 1.39, Thu Jan 13 14:30:13 2011 UTC (13 years, 2 months ago) by kristaps
Branch: MAIN
Changes since 1.38: +4 -1 lines

Change how -Thtml behaves with tables: use multiple rows, with widths
set by COL, until an external macro is encountered.  At this point in
time, close out the table and process the macro.  When the first table
row is again re-encountered, re-start the table.  This requires a bit of
tracking added to "struct html", but the change is very small and
follows the logic of meta-fonts.  This all follows a bug-report by
joerg@.

/*	$Id: html.h,v 1.39 2011/01/13 14:30:13 kristaps Exp $ */
/*
 * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
 *
 * 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
 * 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.
 */
#ifndef HTML_H
#define HTML_H

__BEGIN_DECLS

enum	htmltag {
	TAG_HTML,
	TAG_HEAD,
	TAG_BODY,
	TAG_META,
	TAG_TITLE,
	TAG_DIV,
	TAG_H1,
	TAG_H2,
	TAG_SPAN,
	TAG_LINK,
	TAG_BR,
	TAG_A,
	TAG_TABLE,
	TAG_TBODY,
	TAG_COL,
	TAG_TR,
	TAG_TD,
	TAG_LI,
	TAG_UL,
	TAG_OL,
	TAG_DL,
	TAG_DT,
	TAG_DD,
	TAG_BLOCKQUOTE,
	TAG_P,
	TAG_PRE,
	TAG_B,
	TAG_I,
	TAG_CODE,
	TAG_SMALL,
	TAG_MAX
};

enum	htmlattr {
	ATTR_HTTPEQUIV,
	ATTR_CONTENT,
	ATTR_NAME,
	ATTR_REL,
	ATTR_HREF,
	ATTR_TYPE,
	ATTR_MEDIA,
	ATTR_CLASS,
	ATTR_STYLE,
	ATTR_WIDTH,
	ATTR_ID,
	ATTR_SUMMARY,
	ATTR_ALIGN,
	ATTR_COLSPAN,
	ATTR_MAX
};

enum	htmlfont {
	HTMLFONT_NONE = 0,
	HTMLFONT_BOLD,
	HTMLFONT_ITALIC,
	HTMLFONT_MAX
};

struct	tag {
	struct tag	 *next;
	enum htmltag	  tag;
};

struct tagq {
	struct tag	 *head;
};

struct	htmlpair {
	enum htmlattr	  key;
	const char	 *val;
};

#define	PAIR_INIT(p, t, v) \
	do { \
		(p)->key = (t); \
		(p)->val = (v); \
	} while (/* CONSTCOND */ 0)

#define	PAIR_ID_INIT(p, v)	PAIR_INIT(p, ATTR_ID, v)
#define	PAIR_CLASS_INIT(p, v)	PAIR_INIT(p, ATTR_CLASS, v)
#define	PAIR_HREF_INIT(p, v)	PAIR_INIT(p, ATTR_HREF, v)
#define	PAIR_STYLE_INIT(p, h)	PAIR_INIT(p, ATTR_STYLE, (h)->buf)
#define	PAIR_SUMMARY_INIT(p, v)	PAIR_INIT(p, ATTR_SUMMARY, v)

enum	htmltype {
	HTML_HTML_4_01_STRICT,
	HTML_XHTML_1_0_STRICT
};

struct	html {
	int		  flags;
#define	HTML_NOSPACE	 (1 << 0)
#define	HTML_IGNDELIM	 (1 << 1)
#define	HTML_KEEP	 (1 << 2)
#define	HTML_PREKEEP	 (1 << 3)
#define	HTML_NONOSPACE	 (1 << 4)
	struct tagq	  tags; /* stack of open tags */
	struct rofftbl	  tbl; /* current table */
	struct tag	 *tblt; /* current open table scope */
	void		 *symtab; /* character-escapes */
	char		 *base_man; /* base for manpage href */
	char		 *base_includes; /* base for include href */
	char		 *style; /* style-sheet URI */
	char		  buf[BUFSIZ]; /* see bufcat and friends */
	size_t		  buflen;
	struct tag	 *metaf; /* current open font scope */
	enum htmlfont	  metal; /* last used font */
	enum htmlfont	  metac; /* current font mode */
	enum htmltype	  type;
};

void		  print_gen_decls(struct html *);
void		  print_gen_head(struct html *);
struct tag	 *print_otag(struct html *, enum htmltag, 
				int, const struct htmlpair *);
void		  print_tagq(struct html *, const struct tag *);
void		  print_stagq(struct html *, const struct tag *);
void		  print_text(struct html *, const char *);
void		  print_tblclose(struct html *);
void		  print_tbl(struct html *, const struct tbl_span *);

void		  bufcat_su(struct html *, const char *, 
			const struct roffsu *);
void		  buffmt_man(struct html *, 
			const char *, const char *);
void		  buffmt_includes(struct html *, const char *);
void		  buffmt(struct html *, const char *, ...);
void		  bufcat(struct html *, const char *);
void		  bufcat_style(struct html *, 
			const char *, const char *);
void		  bufncat(struct html *, const char *, size_t);
void		  bufinit(struct html *);

void		  html_idcat(char *, const char *, int);

__END_DECLS

#endif /*!HTML_H*/