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Diffstat (limited to 'contrib/texinfo/makeinfo/cmds.c')
| -rw-r--r-- | contrib/texinfo/makeinfo/cmds.c | 1121 |
1 files changed, 1121 insertions, 0 deletions
diff --git a/contrib/texinfo/makeinfo/cmds.c b/contrib/texinfo/makeinfo/cmds.c new file mode 100644 index 000000000000..65d382e8d4ba --- /dev/null +++ b/contrib/texinfo/makeinfo/cmds.c @@ -0,0 +1,1121 @@ +/* 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 ("•"); + 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 ("©"); + 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 ("<<code>"); + else + add_word ("</code>>"); + } + else + if (arg == START) + add_word ("<"); + else + add_word (">"); +} + +void +cm_key (arg) + int arg; +{ + if (html) + add_word (arg == START ? "<" : ">"); + 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 ? "=>" : "=>"); +} + +/* What an expression expands to. */ +void +cm_expansion (arg) + int arg; +{ + if (arg == END) + add_word (html ? "==>" : "==>"); +} + +/* 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-->" : "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); +} |