freebsd-dev/contrib/texinfo/makeinfo/cmds.c
2000-01-17 10:39:58 +00:00

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/* cmds.c -- Texinfo commands.
$Id: cmds.c,v 1.57 1999/09/19 16:39:35 karl Exp $
Copyright (C) 1998, 99 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "system.h"
#include "cmds.h"
#include "defun.h"
#include "files.h"
#include "footnote.h"
#include "insertion.h"
#include "lang.h"
#include "macro.h"
#include "makeinfo.h"
#include "node.h"
#include "sectioning.h"
#include "toc.h"
#ifdef TM_IN_SYS_TIME
#include <sys/time.h>
#else
#include <time.h>
#endif
void insert_self (), insert_space (), cm_ignore_line (), cm_ignore_arg ();
void
cm_TeX (), cm_acronym (), cm_asterisk (), cm_b (), cm_bullet (), cm_cite (),
cm_code (), cm_copyright (), cm_ctrl (), cm_dfn (), cm_dircategory (),
cm_direntry (), cm_dmn (), cm_dots (), cm_emph (), cm_enddots (), cm_i (),
cm_image (), cm_kbd (), cm_key (), cm_no_op (),
cm_novalidate (), cm_not_fixed_width (), cm_r (),
cm_strong (), cm_var (), cm_sc (), cm_w (), cm_email (), cm_url ();
void
cm_anchor (), cm_node (), cm_menu (), cm_xref (), cm_ftable (),
cm_vtable (), cm_pxref (), cm_inforef (), cm_uref (), cm_email (),
cm_quotation (), cm_display (), cm_smalldisplay (), cm_itemize (),
cm_enumerate (), cm_tab (), cm_table (), cm_itemx (), cm_noindent (),
cm_setfilename (), cm_br (), cm_sp (), cm_page (), cm_group (),
cm_center (), cm_ref (), cm_include (), cm_bye (), cm_item (), cm_end (),
cm_kindex (), cm_cindex (), cm_findex (), cm_pindex (), cm_vindex (),
cm_tindex (), cm_synindex (), cm_printindex (), cm_minus (),
cm_example (), cm_smallexample (), cm_smalllisp (), cm_lisp (),
cm_format (), cm_smallformat (), cm_exdent (), cm_defindex (),
cm_defcodeindex (), cm_result (), cm_expansion (), cm_equiv (),
cm_print (), cm_error (), cm_point (), cm_today (), cm_flushleft (),
cm_flushright (), cm_finalout (), cm_cartouche (), cm_detailmenu (),
cm_multitable (), cm_settitle (), cm_titlefont (), cm_tt ();
/* Conditionals. */
void cm_set (), cm_clear (), cm_ifset (), cm_ifclear ();
void cm_value (), cm_ifeq ();
/* Options. */
static void cm_paragraphindent (), cm_exampleindent ();
/* Internals. */
static void cm_obsolete ();
/* A random string. */
static const char small_tag[] = "small";
/* The dispatch table. */
COMMAND command_table[] = {
{ "\t", insert_space, NO_BRACE_ARGS },
{ "\n", insert_space, NO_BRACE_ARGS },
{ " ", insert_self, NO_BRACE_ARGS },
{ "!", insert_self, NO_BRACE_ARGS },
{ "\"", cm_accent_umlaut, MAYBE_BRACE_ARGS },
{ "'", cm_accent_acute, MAYBE_BRACE_ARGS },
{ "*", cm_asterisk, NO_BRACE_ARGS },
{ ",", cm_accent_cedilla, MAYBE_BRACE_ARGS },
{ "-", cm_no_op, NO_BRACE_ARGS },
{ ".", insert_self, NO_BRACE_ARGS },
{ ":", cm_no_op, NO_BRACE_ARGS },
{ "=", cm_accent, MAYBE_BRACE_ARGS },
{ "?", insert_self, NO_BRACE_ARGS },
{ "@", insert_self, NO_BRACE_ARGS },
{ "^", cm_accent_hat, MAYBE_BRACE_ARGS },
{ "`", cm_accent_grave, MAYBE_BRACE_ARGS },
{ "{", insert_self, NO_BRACE_ARGS },
{ "|", cm_no_op, NO_BRACE_ARGS },
{ "}", insert_self, NO_BRACE_ARGS },
{ "~", cm_accent_tilde, MAYBE_BRACE_ARGS },
{ "AA", cm_special_char, BRACE_ARGS },
{ "AE", cm_special_char, BRACE_ARGS },
{ "H", cm_accent, MAYBE_BRACE_ARGS },
{ "L", cm_special_char, BRACE_ARGS },
{ "O", cm_special_char, BRACE_ARGS },
{ "OE", cm_special_char, BRACE_ARGS },
{ "TeX", cm_TeX, BRACE_ARGS },
{ "aa", cm_special_char, BRACE_ARGS },
{ "acronym", cm_acronym, BRACE_ARGS },
{ "ae", cm_special_char, BRACE_ARGS },
{ "afourpaper", cm_ignore_line, NO_BRACE_ARGS },
{ "alias", cm_alias, NO_BRACE_ARGS },
{ "anchor", cm_anchor, BRACE_ARGS },
{ "appendix", cm_appendix, NO_BRACE_ARGS },
{ "appendixsection", cm_appendixsec, NO_BRACE_ARGS },
{ "appendixsec", cm_appendixsec, NO_BRACE_ARGS },
{ "appendixsubsec", cm_appendixsubsec, NO_BRACE_ARGS },
{ "appendixsubsubsec", cm_appendixsubsubsec, NO_BRACE_ARGS },
{ "asis", cm_no_op, BRACE_ARGS },
{ "b", cm_b, BRACE_ARGS },
{ "bullet", cm_bullet, BRACE_ARGS },
{ "bye", cm_bye, NO_BRACE_ARGS },
{ "c", cm_ignore_line, NO_BRACE_ARGS },
{ "cartouche", cm_cartouche, NO_BRACE_ARGS },
{ "center", cm_center, NO_BRACE_ARGS },
{ "centerchap", cm_unnumbered, NO_BRACE_ARGS },
{ "chapheading", cm_chapheading, NO_BRACE_ARGS },
{ "chapter", cm_chapter, NO_BRACE_ARGS },
{ "cindex", cm_cindex, NO_BRACE_ARGS },
{ "cite", cm_cite, BRACE_ARGS },
{ "clear", cm_clear, NO_BRACE_ARGS },
{ "code", cm_code, BRACE_ARGS },
{ "command", cm_code, BRACE_ARGS },
{ "comment", cm_ignore_line, NO_BRACE_ARGS },
{ "contents", cm_contents, NO_BRACE_ARGS },
{ "copyright", cm_copyright, BRACE_ARGS },
{ "ctrl", cm_obsolete, BRACE_ARGS },
{ "defcodeindex", cm_defcodeindex, NO_BRACE_ARGS },
{ "defcv", cm_defun, NO_BRACE_ARGS },
{ "defcvx", cm_defun, NO_BRACE_ARGS },
{ "deffn", cm_defun, NO_BRACE_ARGS },
{ "deffnx", cm_defun, NO_BRACE_ARGS },
{ "defindex", cm_defindex, NO_BRACE_ARGS },
{ "definfoenclose", cm_definfoenclose, NO_BRACE_ARGS },
{ "defivar", cm_defun, NO_BRACE_ARGS },
{ "defivarx", cm_defun, NO_BRACE_ARGS },
{ "defmac", cm_defun, NO_BRACE_ARGS },
{ "defmacx", cm_defun, NO_BRACE_ARGS },
{ "defmethod", cm_defun, NO_BRACE_ARGS },
{ "defmethodx", cm_defun, NO_BRACE_ARGS },
{ "defop", cm_defun, NO_BRACE_ARGS },
{ "defopt", cm_defun, NO_BRACE_ARGS },
{ "defoptx", cm_defun, NO_BRACE_ARGS },
{ "defopx", cm_defun, NO_BRACE_ARGS },
{ "defspec", cm_defun, NO_BRACE_ARGS },
{ "defspecx", cm_defun, NO_BRACE_ARGS },
{ "deftp", cm_defun, NO_BRACE_ARGS },
{ "deftpx", cm_defun, NO_BRACE_ARGS },
{ "deftypefn", cm_defun, NO_BRACE_ARGS },
{ "deftypefnx", cm_defun, NO_BRACE_ARGS },
{ "deftypefun", cm_defun, NO_BRACE_ARGS },
{ "deftypefunx", cm_defun, NO_BRACE_ARGS },
{ "deftypeivar", cm_defun, NO_BRACE_ARGS },
{ "deftypeivarx", cm_defun, NO_BRACE_ARGS },
{ "deftypemethod", cm_defun, NO_BRACE_ARGS },
{ "deftypemethodx", cm_defun, NO_BRACE_ARGS },
{ "deftypeop", cm_defun, NO_BRACE_ARGS },
{ "deftypeopx", cm_defun, NO_BRACE_ARGS },
{ "deftypevar", cm_defun, NO_BRACE_ARGS },
{ "deftypevarx", cm_defun, NO_BRACE_ARGS },
{ "deftypevr", cm_defun, NO_BRACE_ARGS },
{ "deftypevrx", cm_defun, NO_BRACE_ARGS },
{ "defun", cm_defun, NO_BRACE_ARGS },
{ "defunx", cm_defun, NO_BRACE_ARGS },
{ "defvar", cm_defun, NO_BRACE_ARGS },
{ "defvarx", cm_defun, NO_BRACE_ARGS },
{ "defvr", cm_defun, NO_BRACE_ARGS },
{ "defvrx", cm_defun, NO_BRACE_ARGS },
{ "detailmenu", cm_detailmenu, NO_BRACE_ARGS },
{ "dfn", cm_dfn, BRACE_ARGS },
{ "dircategory", cm_dircategory, NO_BRACE_ARGS },
{ "direntry", cm_direntry, NO_BRACE_ARGS },
{ "display", cm_display, NO_BRACE_ARGS },
{ "dmn", cm_no_op, BRACE_ARGS },
{ "documentencoding", cm_documentencoding, NO_BRACE_ARGS },
{ "documentlanguage", cm_documentlanguage, NO_BRACE_ARGS },
{ "dotaccent", cm_accent, MAYBE_BRACE_ARGS },
{ "dotless", cm_dotless, BRACE_ARGS },
{ "dots", cm_dots, BRACE_ARGS },
{ "email", cm_email, BRACE_ARGS },
{ "emph", cm_emph, BRACE_ARGS },
{ "end", cm_end, NO_BRACE_ARGS },
{ "enddots", cm_enddots, BRACE_ARGS },
{ "enumerate", cm_enumerate, NO_BRACE_ARGS },
{ "env", cm_code, BRACE_ARGS },
{ "equiv", cm_equiv, BRACE_ARGS },
{ "error", cm_error, BRACE_ARGS },
{ "example", cm_example, NO_BRACE_ARGS },
{ "exampleindent", cm_exampleindent, NO_BRACE_ARGS },
{ "exclamdown", cm_special_char, BRACE_ARGS },
{ "exdent", cm_exdent, NO_BRACE_ARGS },
{ "expansion", cm_expansion, BRACE_ARGS },
{ "file", cm_code, BRACE_ARGS },
{ "finalout", cm_no_op, NO_BRACE_ARGS },
{ "findex", cm_findex, NO_BRACE_ARGS },
{ "flushleft", cm_flushleft, NO_BRACE_ARGS },
{ "flushright", cm_flushright, NO_BRACE_ARGS },
{ "footnote", cm_footnote, NO_BRACE_ARGS}, /* self-arg eater */
{ "footnotestyle", cm_footnotestyle, NO_BRACE_ARGS },
{ "format", cm_format, NO_BRACE_ARGS },
{ "ftable", cm_ftable, NO_BRACE_ARGS },
{ "group", cm_group, NO_BRACE_ARGS },
{ "heading", cm_heading, NO_BRACE_ARGS },
{ "headings", cm_ignore_line, NO_BRACE_ARGS },
{ "html", cm_html, NO_BRACE_ARGS },
{ "hyphenation", cm_ignore_arg, BRACE_ARGS },
{ "i", cm_i, BRACE_ARGS },
{ "ifclear", cm_ifclear, NO_BRACE_ARGS },
{ "ifeq", cm_ifeq, NO_BRACE_ARGS },
{ "ifhtml", cm_ifhtml, NO_BRACE_ARGS },
{ "ifinfo", cm_ifinfo, NO_BRACE_ARGS },
{ "ifnothtml", cm_ifnothtml, NO_BRACE_ARGS },
{ "ifnotinfo", cm_ifnotinfo, NO_BRACE_ARGS },
{ "ifnottex", cm_ifnottex, NO_BRACE_ARGS },
{ "ifset", cm_ifset, NO_BRACE_ARGS },
{ "iftex", cm_iftex, NO_BRACE_ARGS },
{ "ignore", command_name_condition, NO_BRACE_ARGS },
{ "image", cm_image, BRACE_ARGS },
{ "include", cm_include, NO_BRACE_ARGS },
{ "inforef", cm_inforef, BRACE_ARGS },
{ "item", cm_item, NO_BRACE_ARGS },
{ "itemize", cm_itemize, NO_BRACE_ARGS },
{ "itemx", cm_itemx, NO_BRACE_ARGS },
{ "kbd", cm_kbd, BRACE_ARGS },
{ "kbdinputstyle", cm_ignore_line, NO_BRACE_ARGS },
{ "key", cm_key, BRACE_ARGS },
{ "kindex", cm_kindex, NO_BRACE_ARGS },
{ "l", cm_special_char, BRACE_ARGS },
{ "lisp", cm_lisp, NO_BRACE_ARGS },
{ "lowersections", cm_lowersections, NO_BRACE_ARGS },
{ "macro", cm_macro, NO_BRACE_ARGS },
{ "majorheading", cm_majorheading, NO_BRACE_ARGS },
{ "math", cm_no_op, BRACE_ARGS },
{ "menu", cm_menu, NO_BRACE_ARGS },
{ "minus", cm_minus, BRACE_ARGS },
{ "multitable", cm_multitable, NO_BRACE_ARGS },
{ "need", cm_ignore_line, NO_BRACE_ARGS },
{ "node", cm_node, NO_BRACE_ARGS },
{ "noindent", cm_noindent, NO_BRACE_ARGS },
{ "noindent", cm_novalidate, NO_BRACE_ARGS },
{ "nwnode", cm_node, NO_BRACE_ARGS },
{ "o", cm_special_char, BRACE_ARGS },
{ "oe", cm_special_char, BRACE_ARGS },
{ "option", cm_code, BRACE_ARGS },
{ "page", cm_no_op, NO_BRACE_ARGS },
{ "pagesizes", cm_ignore_line, NO_BRACE_ARGS },
{ "paragraphindent", cm_paragraphindent, NO_BRACE_ARGS },
{ "pindex", cm_pindex, NO_BRACE_ARGS },
{ "point", cm_point, BRACE_ARGS },
{ "pounds", cm_special_char, BRACE_ARGS },
{ "print", cm_print, BRACE_ARGS },
{ "printindex", cm_printindex, NO_BRACE_ARGS },
{ "pxref", cm_pxref, BRACE_ARGS },
{ "questiondown", cm_special_char, BRACE_ARGS },
{ "quotation", cm_quotation, NO_BRACE_ARGS },
{ "r", cm_r, BRACE_ARGS },
{ "raisesections", cm_raisesections, NO_BRACE_ARGS },
{ "ref", cm_ref, BRACE_ARGS },
{ "refill", cm_no_op, NO_BRACE_ARGS },
{ "result", cm_result, BRACE_ARGS },
{ "ringaccent", cm_accent, MAYBE_BRACE_ARGS },
{ "rmacro", cm_rmacro, NO_BRACE_ARGS },
{ "samp", cm_code, BRACE_ARGS },
{ "sc", cm_sc, BRACE_ARGS },
{ "section", cm_section, NO_BRACE_ARGS },
{ "set", cm_set, NO_BRACE_ARGS },
{ "setchapternewpage", cm_ignore_line, NO_BRACE_ARGS },
{ "setchapterstyle", cm_obsolete, NO_BRACE_ARGS },
{ "setcontentsaftertitlepage", cm_no_op, NO_BRACE_ARGS },
{ "setfilename", cm_setfilename, NO_BRACE_ARGS },
{ "setshortcontentsaftertitlepage", cm_no_op, NO_BRACE_ARGS },
{ "settitle", cm_settitle, NO_BRACE_ARGS },
{ "shortcontents", cm_shortcontents, NO_BRACE_ARGS },
{ "shorttitlepage", cm_ignore_line, NO_BRACE_ARGS },
{ "smallbook", cm_ignore_line, NO_BRACE_ARGS },
{ "smalldisplay", cm_smalldisplay, NO_BRACE_ARGS },
{ "smallexample", cm_smallexample, NO_BRACE_ARGS },
{ "smallformat", cm_smallformat, NO_BRACE_ARGS },
{ "smalllisp", cm_smalllisp, NO_BRACE_ARGS },
{ "sp", cm_sp, NO_BRACE_ARGS },
{ "ss", cm_special_char, BRACE_ARGS },
{ "strong", cm_strong, BRACE_ARGS },
{ "subheading", cm_subheading, NO_BRACE_ARGS },
{ "subsection", cm_subsection, NO_BRACE_ARGS },
{ "subsubheading", cm_subsubheading, NO_BRACE_ARGS },
{ "subsubsection", cm_subsubsection, NO_BRACE_ARGS },
{ "summarycontents", cm_no_op, NO_BRACE_ARGS },
{ "syncodeindex", cm_synindex, NO_BRACE_ARGS },
{ "synindex", cm_synindex, NO_BRACE_ARGS },
{ "t", cm_tt, BRACE_ARGS },
{ "tab", cm_tab, NO_BRACE_ARGS },
{ "table", cm_table, NO_BRACE_ARGS },
{ "tex", cm_tex, NO_BRACE_ARGS },
{ "tieaccent", cm_accent, MAYBE_BRACE_ARGS },
{ "tindex", cm_tindex, NO_BRACE_ARGS },
{ "titlefont", cm_titlefont, BRACE_ARGS },
{ "titlepage", command_name_condition, NO_BRACE_ARGS },
{ "today", cm_today, BRACE_ARGS },
{ "top", cm_top, NO_BRACE_ARGS },
{ "u", cm_accent, MAYBE_BRACE_ARGS },
{ "ubaraccent", cm_accent, MAYBE_BRACE_ARGS },
{ "udotaccent", cm_accent, MAYBE_BRACE_ARGS },
{ "unmacro", cm_unmacro, NO_BRACE_ARGS },
{ "unnumbered", cm_unnumbered, NO_BRACE_ARGS },
{ "unnumberedsec", cm_unnumberedsec, NO_BRACE_ARGS },
{ "unnumberedsubsec", cm_unnumberedsubsec, NO_BRACE_ARGS },
{ "unnumberedsubsubsec", cm_unnumberedsubsubsec, NO_BRACE_ARGS },
{ "uref", cm_uref, BRACE_ARGS },
{ "url", cm_url, BRACE_ARGS },
{ "v", cm_accent, MAYBE_BRACE_ARGS },
{ "value", cm_value, BRACE_ARGS },
{ "var", cm_var, BRACE_ARGS },
{ "vindex", cm_vindex, NO_BRACE_ARGS },
{ "vtable", cm_vtable, NO_BRACE_ARGS },
{ "w", cm_w, BRACE_ARGS },
{ "xref", cm_xref, BRACE_ARGS },
/* Deprecated commands. These used to be for italics. */
{ "iappendix", cm_ideprecated, NO_BRACE_ARGS },
{ "iappendixsec", cm_ideprecated, NO_BRACE_ARGS },
{ "iappendixsection", cm_ideprecated, NO_BRACE_ARGS },
{ "iappendixsubsec", cm_ideprecated, NO_BRACE_ARGS },
{ "iappendixsubsubsec", cm_ideprecated, NO_BRACE_ARGS },
{ "ichapter", cm_ideprecated, NO_BRACE_ARGS },
{ "isection", cm_ideprecated, NO_BRACE_ARGS },
{ "isubsection", cm_ideprecated, NO_BRACE_ARGS },
{ "isubsubsection", cm_ideprecated, NO_BRACE_ARGS },
{ "iunnumbered", cm_ideprecated, NO_BRACE_ARGS },
{ "iunnumberedsec", cm_ideprecated, NO_BRACE_ARGS },
{ "iunnumberedsubsec", cm_ideprecated, NO_BRACE_ARGS },
{ "iunnumberedsubsubsec", cm_ideprecated, NO_BRACE_ARGS },
/* Now @include does what this was used to. */
{ "infoinclude", cm_obsolete, NO_BRACE_ARGS },
{ "titlespec", cm_obsolete, NO_BRACE_ARGS },
{ NULL, NULL, NO_BRACE_ARGS }
};
/* The bulk of the Texinfo commands. */
/* Commands which insert their own names. */
void
insert_self (arg)
int arg;
{
if (arg == START)
add_word (command);
}
void
insert_space (arg)
int arg;
{
if (arg == START)
add_char (' ');
}
/* Force a line break in the output. */
void
cm_asterisk ()
{
if (html)
add_word ("<br>");
else
{
close_single_paragraph ();
cm_noindent ();
}
}
/* Insert ellipsis. */
void
cm_dots (arg)
int arg;
{
if (arg == START)
add_word (html ? "<small>...</small>" : "...");
}
/* Insert ellipsis for sentence end. */
void
cm_enddots (arg)
int arg;
{
if (arg == START)
add_word (html ? "<small>...</small>." : "....");
}
void
cm_bullet (arg)
int arg;
{
if (arg == START)
{
if (html)
add_word ("&#149;");
else
add_char ('*');
}
}
void
cm_minus (arg)
int arg;
{
if (arg == START)
add_char ('-');
}
/* Insert "TeX". */
void
cm_TeX (arg)
int arg;
{
if (arg == START)
add_word ("TeX");
}
/* Copyright symbol. */
void
cm_copyright (arg)
int arg;
{
if (arg == START)
if (html)
add_word ("&copy;");
else
add_word ("(C)");
}
void
cm_today (arg)
int arg;
{
static char *months[12] =
{ N_("January"), N_("February"), N_("March"), N_("April"), N_("May"),
N_("June"), N_("July"), N_("August"), N_("September"), N_("October"),
N_("November"), N_("December") };
if (arg == START)
{
time_t timer = time (0);
struct tm *ts = localtime (&timer);
add_word_args ("%d %s %d", ts->tm_mday, _(months[ts->tm_mon]),
ts->tm_year + 1900);
}
}
void
cm_acronym (arg)
int arg;
{
if (html)
insert_html_tag (arg, small_tag);
}
void
cm_tt (arg)
int arg;
{
/* @t{} is a no-op in Info. */
if (html)
insert_html_tag (arg, "tt");
}
void
cm_code (arg)
int arg;
{
extern int printing_index;
if (arg == START)
{
in_fixed_width_font++;
if (html)
insert_html_tag (arg, "code");
else if (!printing_index)
add_char ('`');
}
else if (html)
insert_html_tag (arg, "code");
else
{
if (!printing_index)
add_meta_char ('\'');
}
}
void
cm_kbd (arg)
int arg;
{
if (html)
{ /* Seems like we should increment in_fixed_width_font for Info
format too, but then the quote-omitting special case gets
confused. Punt. */
if (arg == START)
in_fixed_width_font++;
insert_html_tag (arg, "kbd");
}
else
{ /* People use @kbd in an example to get the "user input" font.
We don't want quotes in that case. */
if (!in_fixed_width_font)
cm_code (arg);
}
}
void
cm_url (arg, start, end)
{
if (html)
{
if (arg == START)
add_word ("&lt;<code>");
else
add_word ("</code>&gt;");
}
else
if (arg == START)
add_word ("<");
else
add_word (">");
}
void
cm_key (arg)
int arg;
{
if (html)
add_word (arg == START ? "&lt;" : "&gt;");
else
add_char (arg == START ? '<' : '>');
}
/* Handle a command that switches to a non-fixed-width font. */
void
not_fixed_width (arg)
int arg;
{
if (arg == START)
in_fixed_width_font = 0;
}
/* @var in makeinfo just uppercases the text. */
void
cm_var (arg, start_pos, end_pos)
int arg, start_pos, end_pos;
{
not_fixed_width (arg);
if (html)
insert_html_tag (arg, "var");
else if (arg == END)
{
while (start_pos < end_pos)
{
unsigned char c = output_paragraph[start_pos];
if (strchr ("[](),", c))
warning (_("unlikely character %c in @var"), c);
output_paragraph[start_pos] = coerce_to_upper (c);
start_pos++;
}
}
}
void
cm_sc (arg, start_pos, end_pos)
int arg, start_pos, end_pos;
{
not_fixed_width (arg);
if (arg == START)
{
if (html)
insert_html_tag (arg, small_tag);
}
else
{
int all_upper = 1;
if (html)
start_pos += sizeof (small_tag) + 2 - 1; /* skip <small> */
while (start_pos < end_pos)
{
unsigned char c = output_paragraph[start_pos];
if (!isupper (c))
all_upper = 0;
output_paragraph[start_pos] = coerce_to_upper (c);
start_pos++;
}
if (all_upper)
warning (_("@sc argument all uppercase, thus no effect"));
if (html)
insert_html_tag (arg, small_tag);
}
}
void
cm_dfn (arg, position)
int arg, position;
{
if (html)
insert_html_tag (arg, "dfn");
else if (arg == START)
add_char ('"');
else
add_meta_char ('"');
}
void
cm_emph (arg)
int arg;
{
if (html)
insert_html_tag (arg, "em");
else
add_char ('_');
}
void
cm_strong (arg, position)
int arg, position;
{
if (html)
insert_html_tag (arg, "strong");
else
add_char ('*');
}
void
cm_cite (arg, position)
int arg, position;
{
if (html)
insert_html_tag (arg, "cite");
else
{
if (arg == START)
add_char ('`');
else
add_char ('\'');
}
}
/* No highlighting, but argument switches fonts. */
void
cm_not_fixed_width (arg, start, end)
int arg, start, end;
{
not_fixed_width (arg);
}
void
cm_i (arg)
int arg;
{
if (html)
insert_html_tag (arg, "i");
else
not_fixed_width (arg);
}
void
cm_b (arg)
int arg;
{
if (html)
insert_html_tag (arg, "b");
else
not_fixed_width (arg);
}
void
cm_r (arg)
int arg;
{
extern int printing_index;
/* People use @r{} in index entries like this:
@findex foo@r{, some text}
This is supposed to produce output as if the entry were saying
"@code{foo}, some text", since the "fn" index is typeset as
@code. The following attempts to do the same in HTML. Note that
this relies on the fact that only @code bumps up the variable
in_fixed_width_font while processing index entries in HTML mode. */
if (html && printing_index)
{
int level = in_fixed_width_font;
while (level--)
insert_html_tag (arg == START ? END : START, "code");
}
not_fixed_width (arg);
}
void
cm_titlefont (arg)
int arg;
{
not_fixed_width (arg);
}
/* Various commands are no-op's. */
void
cm_no_op ()
{
}
/* For proofing single chapters, etc. */
void
cm_novalidate ()
{
validating = 0;
}
/* Prevent the argument from being split across two lines. */
void
cm_w (arg, start, end)
int arg, start, end;
{
if (arg == START)
non_splitting_words++;
else
non_splitting_words--;
}
/* Explain that this command is obsolete, thus the user shouldn't
do anything with it. */
static void
cm_obsolete (arg, start, end)
int arg, start, end;
{
if (arg == START)
warning (_("%c%s is obsolete"), COMMAND_PREFIX, command);
}
/* This says to inhibit the indentation of the next paragraph, but
not of following paragraphs. */
void
cm_noindent ()
{
if (!inhibit_paragraph_indentation)
inhibit_paragraph_indentation = -1;
}
/* I don't know exactly what to do with this. Should I allow
someone to switch filenames in the middle of output? Since the
file could be partially written, this doesn't seem to make sense.
Another option: ignore it, since they don't *really* want to
switch files. Finally, complain, or at least warn. It doesn't
really matter, anyway, since this doesn't get executed. */
void
cm_setfilename ()
{
char *filename;
get_rest_of_line (1, &filename);
/* warning ("`@%s %s' encountered and ignored", command, filename); */
free (filename);
}
void
cm_settitle ()
{
get_rest_of_line (0, &title);
}
/* Ignore argument in braces. */
void
cm_ignore_arg (arg, start_pos, end_pos)
int arg, start_pos, end_pos;
{
if (arg == END)
output_paragraph_offset = start_pos;
}
/* Ignore argument on rest of line. */
void
cm_ignore_line ()
{
discard_until ("\n");
}
/* Insert the number of blank lines passed as argument. */
void
cm_sp ()
{
int lines;
char *line;
get_rest_of_line (1, &line);
if (sscanf (line, "%d", &lines) != 1 || lines <= 0)
line_error (_("@sp requires a positive numeric argument, not `%s'"), line);
else
{ /* Must disable filling since otherwise multiple newlines is like
multiple spaces. Must close paragraph since that's what the
manual says and that's what TeX does. */
int save_filling_enabled = filling_enabled;
filling_enabled = 0;
close_paragraph ();
while (lines--)
{
if (html)
insert_string ("<br><p>\n");
else
add_char ('\n');
}
filling_enabled = save_filling_enabled;
}
free (line);
}
/* @dircategory LINE outputs INFO-DIR-SECTION LINE, unless --no-headers. */
void
cm_dircategory ()
{
char *line;
if (html)
cm_ignore_line ();
else
{
get_rest_of_line (1, &line);
if (!no_headers && !html)
{
kill_self_indent (-1); /* make sure there's no indentation */
insert_string ("INFO-DIR-SECTION ");
insert_string (line);
insert ('\n');
}
free (line);
}
}
/* Start a new line with just this text on it.
Then center the line of text.
This always ends the current paragraph. */
void
cm_center ()
{
int i, start, length;
unsigned char *line;
int save_indented_fill = indented_fill;
int save_filling_enabled = filling_enabled;
int fudge_factor = 1;
close_paragraph ();
filling_enabled = indented_fill = 0;
cm_noindent ();
start = output_paragraph_offset;
if (html)
add_word ("<p align=\"center\">");
inhibit_output_flushing ();
get_rest_of_line (0, (char **)&line);
execute_string ("%s", (char *)line);
free (line);
uninhibit_output_flushing ();
if (html)
add_word ("</p>");
else
{
i = output_paragraph_offset - 1;
while (i > (start - 1) && output_paragraph[i] == '\n')
i--;
output_paragraph_offset = ++i;
length = output_paragraph_offset - start;
if (length < (fill_column - fudge_factor))
{
line = xmalloc (1 + length);
memcpy (line, (char *)(output_paragraph + start), length);
i = (fill_column - fudge_factor - length) / 2;
output_paragraph_offset = start;
while (i--)
insert (' ');
for (i = 0; i < length; i++)
insert (line[i]);
free (line);
}
}
insert ('\n');
close_paragraph ();
filling_enabled = save_filling_enabled;
indented_fill = save_indented_fill;
}
/* Show what an expression returns. */
void
cm_result (arg)
int arg;
{
if (arg == END)
add_word (html ? "=&gt;" : "=>");
}
/* What an expression expands to. */
void
cm_expansion (arg)
int arg;
{
if (arg == END)
add_word (html ? "==&gt;" : "==>");
}
/* Indicates two expressions are equivalent. */
void
cm_equiv (arg)
int arg;
{
if (arg == END)
add_word ("==");
}
/* What an expression may print. */
void
cm_print (arg)
int arg;
{
if (arg == END)
add_word ("-|");
}
/* An error signaled. */
void
cm_error (arg)
int arg;
{
if (arg == END)
add_word (html ? "error--&gt;" : "error-->");
}
/* The location of point in an example of a buffer. */
void
cm_point (arg)
int arg;
{
if (arg == END)
add_word ("-!-");
}
/* @exdent: Start a new line with just this text on it.
The text is outdented one level if possible. */
void
cm_exdent ()
{
char *line;
int save_indent = current_indent;
int save_in_fixed_width_font = in_fixed_width_font;
/* Read argument */
get_rest_of_line (0, &line);
/* Exdent the output. Actually this may be a no-op. */
if (current_indent)
current_indent -= default_indentation_increment;
/* @exdent arg is supposed to be in roman. */
in_fixed_width_font = 0;
/* The preceding newline already inserted the `current_indent'.
Remove one level's worth. */
kill_self_indent (default_indentation_increment);
if (html)
add_word ("<br>");
/* Can't close_single_paragraph, then we lose preceding blank lines. */
flush_output ();
execute_string ("%s", line);
free (line);
if (html)
add_word ("<br>");
close_single_paragraph ();
current_indent = save_indent;
in_fixed_width_font = save_in_fixed_width_font;
}
/* Remember this file, and move onto the next. */
void
cm_include ()
{
char *filename;
if (macro_expansion_output_stream && !executing_string)
me_append_before_this_command ();
close_paragraph ();
get_rest_of_line (0, &filename);
if (macro_expansion_output_stream && !executing_string)
remember_itext (input_text, input_text_offset);
pushfile ();
/* In verbose mode we print info about including another file. */
if (verbose_mode)
{
int i = 0;
FSTACK *stack = filestack;
for (i = 0, stack = filestack; stack; stack = stack->next, i++);
i *= 2;
printf ("%*s", i, "");
printf ("%c%s %s\n", COMMAND_PREFIX, command, filename);
fflush (stdout);
}
if (!find_and_load (filename))
{
extern int errno;
popfile ();
line_number--;
/* Cannot "@include foo", in line 5 of "/wh/bar". */
line_error ("%c%s %s: %s", COMMAND_PREFIX, command, filename,
strerror (errno));
free (filename);
return;
}
else
{
if (macro_expansion_output_stream && !executing_string)
remember_itext (input_text, input_text_offset);
reader_loop ();
}
free (filename);
popfile ();
}
/* @bye: Signals end of processing. Easy to make this happen. */
void
cm_bye ()
{
discard_braces (); /* should not have any unclosed braces left */
flush_output ();
input_text_offset = input_text_length;
}
/* @paragraphindent */
static void
cm_paragraphindent ()
{
char *arg;
get_rest_of_line (1, &arg);
if (set_paragraph_indent (arg) != 0)
line_error (_("Bad argument to %c%s"), COMMAND_PREFIX, command);
free (arg);
}
/* @exampleindent: change indentation of example-like environments. */
static int
set_default_indentation_increment (string)
char *string;
{
if (strcmp (string, "asis") == 0 || strcmp (string, _("asis")) == 0)
;
else if (strcmp (string, "none") == 0 || strcmp (string, _("none")) == 0)
default_indentation_increment = 0;
else if (sscanf (string, "%d", &default_indentation_increment) != 1)
return -1;
return 0;
}
static void
cm_exampleindent ()
{
char *arg;
get_rest_of_line (1, &arg);
if (set_default_indentation_increment (arg) != 0)
line_error (_("Bad argument to %c%s"), COMMAND_PREFIX, command);
free (arg);
}