File: [cvsweb.bsd.lv] / mandoc / html.h (download)
Revision 1.110, Fri Jun 24 11:15:53 2022 UTC (22 months ago) by schwarze
Branch: MAIN
Changes since 1.109: +2 -1 lines
Improve accessibility of -T html -O toc output by using the <nav> element
in the DPUB-ARIA doc-toc role.
Patch from Anna Vyalkova <cyber at sysrq dot in> slightly tweaked by me.
This is hopefully the start of a collaboration to improve accessibility
of Unix manual pages using the WAI-ARIA, HTML-ARIA, and DPUB-ARIA standards.
Progress appears to be possible without changing *anything* with respect to
the way manual pages are written. Instead, it seems sufficient to properly
translate semantic cues already implied by existing mdoc(7) markup into the
appropriate HTML elements and ARIA attributes. Overall, the total length
of HTML output is likely to increase slightly, but not much.
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/* $Id: html.h,v 1.110 2022/06/24 11:15:53 schwarze Exp $ */
/*
* Copyright (c) 2017, 2018, 2019, 2020 Ingo Schwarze <schwarze@openbsd.org>
* Copyright (c) 2008-2011, 2014 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.
*
* Internal interfaces for mandoc(1) HTML formatters.
* For use by the individual HTML formatters only.
*/
enum htmltag {
TAG_HTML,
TAG_HEAD,
TAG_META,
TAG_LINK,
TAG_STYLE,
TAG_TITLE,
TAG_BODY,
TAG_DIV,
TAG_SECTION,
TAG_NAV,
TAG_TABLE,
TAG_TR,
TAG_TD,
TAG_LI,
TAG_UL,
TAG_OL,
TAG_DL,
TAG_DT,
TAG_DD,
TAG_H1,
TAG_H2,
TAG_P,
TAG_PRE,
TAG_A,
TAG_B,
TAG_CITE,
TAG_CODE,
TAG_I,
TAG_SMALL,
TAG_SPAN,
TAG_VAR,
TAG_BR,
TAG_HR,
TAG_MARK,
TAG_MATH,
TAG_MROW,
TAG_MI,
TAG_MN,
TAG_MO,
TAG_MSUP,
TAG_MSUB,
TAG_MSUBSUP,
TAG_MFRAC,
TAG_MSQRT,
TAG_MFENCED,
TAG_MTABLE,
TAG_MTR,
TAG_MTD,
TAG_MUNDEROVER,
TAG_MUNDER,
TAG_MOVER,
TAG_MAX
};
struct tag {
struct tag *next;
int refcnt;
int closed;
enum htmltag tag;
};
struct html {
int flags;
#define HTML_NOSPACE (1 << 0) /* suppress next space */
#define HTML_IGNDELIM (1 << 1)
#define HTML_KEEP (1 << 2)
#define HTML_PREKEEP (1 << 3)
#define HTML_NONOSPACE (1 << 4) /* never add spaces */
#define HTML_SKIPCHAR (1 << 6) /* skip the next character */
#define HTML_NOSPLIT (1 << 7) /* do not break line before .An */
#define HTML_SPLIT (1 << 8) /* break line before .An */
#define HTML_NONEWLINE (1 << 9) /* No line break in nofill mode. */
#define HTML_BUFFER (1 << 10) /* Collect a word to see if it fits. */
#define HTML_TOCDONE (1 << 11) /* The TOC was already written. */
size_t indent; /* current output indentation level */
int noindent; /* indent disabled by <pre> */
size_t col; /* current output byte position */
size_t bufcol; /* current buf byte position */
char buf[80]; /* output buffer */
struct tag *tag; /* last open tag */
struct rofftbl tbl; /* current table */
struct tag *tblt; /* current open table scope */
char *base_man1; /* bases for manpage href */
char *base_man2;
char *base_includes; /* base for include href */
char *style; /* style-sheet URI */
struct tag *metaf; /* current open font scope */
enum mandoc_esc metal; /* last used font */
enum mandoc_esc metac; /* current font mode */
int oflags; /* output options */
#define HTML_FRAGMENT (1 << 0) /* don't emit HTML/HEAD/BODY */
#define HTML_TOC (1 << 1) /* emit a table of contents */
};
struct roff_node;
struct tbl_span;
struct eqn_box;
void roff_html_pre(struct html *, const struct roff_node *);
void print_gen_comment(struct html *, struct roff_node *);
void print_gen_decls(struct html *);
void print_gen_head(struct html *);
struct tag *print_otag(struct html *, enum htmltag, const char *, ...);
struct tag *print_otag_id(struct html *, enum htmltag, const char *,
struct roff_node *);
void print_tagq(struct html *, const struct tag *);
void print_stagq(struct html *, const struct tag *);
void print_tagged_text(struct html *, const char *,
struct roff_node *);
void print_text(struct html *, const char *);
void print_tblclose(struct html *);
void print_tbl(struct html *, const struct tbl_span *);
void print_eqn(struct html *, const struct eqn_box *);
void print_endline(struct html *);
void html_close_paragraph(struct html *);
enum roff_tok html_fillmode(struct html *, enum roff_tok);
char *html_make_id(const struct roff_node *, int);
int html_setfont(struct html *, enum mandoc_esc);