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# $Id: amsmath.perl,v 1.23 2003/12/31 13:03:32 RRM Exp $
# amsmath.perl by Ross Moore <ross@mpce.mq.edu.au> 9-30-96
#
# Extension to LaTeX2HTML to load features from AMS-LaTeX
# amsfonts, amssymb, eucal, eufrak or euscript.
#
# Change Log:
# ===========
#
# $Log: amsmath.perl,v $
# Revision 1.23 2003/12/31 13:03:32 RRM
# -- the date was occurring twice with a single author; now fixed
#
# Revision 1.22 2003/12/31 11:57:02 RRM
# -- added support for multiple authors
# -- many more math symbols are declared for images
#
# Revision 1.21 2000/11/04 03:32:17 RRM
# -- fixed typo where $t_author should be $t_address
# thanks to Bruce Miller for reporting this
#
# Revision 1.20 1999/06/11 09:57:25 RRM
# -- removed unnecessary tagging for ommitted information on title-page
#
# Revision 1.19 1999/06/03 05:37:41 RRM
# -- added proper revision control
# -- fixed error in previous commit
#
# Revision 1.18 1999/06/02 11:15:53 RRM
# -- the \author and \address commands were not reading their argument
# safely --- looping could result; now fixed.
#
# Revision 1.17 1998/07/22 02:03:22 RRM
# -- implemented {proof} environment and \qed and \qedsymbol
# -- amsthm now fully implemented, no longer gets a warning message
#
# Revision 1.16 1998/06/01 08:15:23 latex2html
# -- bringing up-to-date with amstex.perl
#
# Revision 1.19 1998/05/29 09:46:44 latex2html
# -- removed unneeded declarations
# -- added declaration for \operatornamewithlimits
# -- load more_amsmath.perl under more circumstances; with less parsing
# aligned environments can now have images of whole table-cells
#
# Revision 1.18 1998/05/06 11:11:50 latex2html
# -- implemented the righttag option
# -- suppressed 'No implementation ...' messages
# -- included CD in %AMSenvs
#
# Revision 1.17 1998/05/04 12:14:16 latex2html
# -- included %EQNO <num> in LaTeX code that constructs image containing
# equation-numbering, to avoid incorrect image-reuse
# -- removed ALIGN attributes when using HTML 2.0
#
# Revision 1.16 1998/02/20 22:06:57 latex2html
# added log
#
# ----------------------------
# revision 1.15
# date: 1998/02/13 12:57:33; author: latex2html; state: Exp; lines: +11 -0
# -- images of {subequations} have the correct numbering and alignment
# ----------------------------
# revision 1.14
# date: 1998/02/06 22:57:13; author: latex2html; state: Exp; lines: +39 -2
# -- copied &get_eqn_number from the more_amsmath file
# ----------------------------
# revision 1.13
# date: 1998/01/27 11:33:22; author: RRM; state: Exp; lines: +30 -16
# -- \title needed updating, in line with changes in latex2html
# ----------------------------
# revision 1.12
# date: 1998/01/19 08:52:29; author: RRM; state: Exp; lines: +3 -746
# That part of amstex.perl and amsmath.perl that needs the `math'
# extension has been split-off into more_amsmath.perl .
# This is loaded automatically with switches:
# -no_math -html_version ...,math
# ----------------------------
# revision 1.11
# date: 1997/12/19 11:36:00; author: RRM; state: Exp; lines: +16 -7
# -- use a specified WIDTH="10%" for equation-numbering cells
# (thanks to Bruce Miller for highlighting the problem)
# ----------------------------
# revision 1.10
# date: 1997/12/18 11:18:31; author: RRM; state: Exp; lines: +14 -9
# -- removed do_cmd_numberwithin which is in the latex2html script
# -- added support for CLASS="MATH" with $USING_STYLES
# ----------------------------
# revision 1.9
# date: 1997/12/17 10:19:19; author: RRM; state: Exp; lines: +30 -16
# -- appended environment names to the new $display_env_rx variable
# -- removed the need for `math' extension to be loaded
# -- removed a redundant closing-tag `>' --- thanks Bruce Miller
# -- fixed the missing equation-numbers when on the right-hand side
# ----------------------------
# revision 1.8
# date: 1997/12/11 02:42:44; author: RRM; state: Exp; lines: +1 -1
# -- missing `;' inserted at end of %AMSenvs array (thanks Bruce Miller)
# ----------------------------
# revision 1.7
# date: 1997/10/10 13:15:30; author: RRM; state: Exp; lines: +10 -2
# -- made loading of some new environments depend on having the `math'
# extension loaded. This probably should be made a requirement ?
# ----------------------------
# revision 1.6
# date: 1997/10/04 07:26:37; author: RRM; state: Exp; lines: +742 -17
# -- handles most of the amsmath alignment macros/environments
# -- supports leqno/reqno options
# -- support for more of the AMSbook/art internal commands, that
# can also be used externally; e.g. \chapterrunhead, etc.
#
# Note: not *all* of the amsmath package is fully supported in the
# best possible way; we are still working on it.
# ----------------------------
# revision 1.5
# date: 1997/07/11 11:28:57; author: RRM; state: Exp; lines: +1 -1
# - replace (.*) patterns with something allowing \n s included
# ----------------------------
# revision 1.4
# date: 1997/07/09 13:28:38; author: RRM; state: Exp; lines: +18 -18
# Too many commas in assoc-array, Oops --- thanks Michel, well spotted
# ----------------------------
# revision 1.3
# date: 1997/05/19 13:27:50; author: RRM; state: Exp; lines: +29 -28
# - AmS-TeX style environment delimiters need a `\\' .
# ----------------------------
# revision 1.2
# date: 1997/05/02 04:08:16; author: RRM; state: Exp; lines: +189 -16
# Extensive changes, preparatory to complete support for AmS-LaTeX.
# This work is not yet complete.
# ----------------------------
# revision 1.1
# date: 1997/03/05 00:27:17; author: RRM; state: Exp;
# Support for American Math Society (AMS) packages.
# Mostly just recognises options to the AMS packages, to suppress warnings.
package main;
#
# unknown environments: alignedat, gathered, alignat, multline
# \gather([^* ])...\endgather
# \align([^* ])...\endalign
$abstract_name = "Abstract";
$keywords_name = "Keywords";
$subjclassname = "1991 Subject Classification";
$date_name = "Date published";
$Proof_name = "Proof";
sub do_cmd_title {
local($_) = @_;
local($text,$s_title,$rest);
if (/\\endtitle/) {
$rest = $';
$t_title = $text = &translate_commands($`);
$t_title =~ s/(^\s*|\s*$)//g;
$s_title = &simplify($text);
$TITLE = (($s_title)? $s_title : $default_title);
return($rest);
}
&get_next_optional_argument;
$text = &missing_braces
unless ((s/$next_pair_pr_rx//o)&&($text = $2));
$t_title = &translate_environments($text);
$t_title = &translate_commands($t_title);
$s_title = &simplify(&translate_commands($text));
$TITLE = (($s_title)? $s_title : $default_title);
$_
}
# local($rest) = $_;
# $rest =~ s/$next_pair_pr_rx//o;
# $_ = &translate_commands($&);
# &extract_pure_text("liberal");
# s/([\w\W]*)(<A.*><\/A>)([\w\W]*)/$1$3/; # HWS: Remove embedded anchors
# ($t_title) = $_;
# $TITLE = $t_title if ($TITLE eq $default_title);
# $TITLE =~ s/<P>//g; # Remove Newlines
# $TITLE =~ s/\s+/ /g; # meh - remove empty lines
# $rest;
#}
sub do_cmd_author {
local($_) = @_;
&get_next_optional_argument;
my $next;
my $after = '';
if (/\\endauthor/) {
$next = $`;
$after = $';
} else {
$next = &missing_braces unless (
(s/$next_pair_pr_rx/$next = $2;''/seo)
||(s/$next_pair_rx/$next = $2;''/seo));
$after = $_;
}
if ($next =~ /\\and/i) {
my @author_list = split(/\s*\\and\s*/i, $next);
my $t_author, $t_affil, $t_address;
foreach (@author_list) {
$t_author = &translate_environments($_);
$t_author =~ s/\s+/ /g;
$t_author = &simplify(&translate_commands($t_author));
($t_author,$t_affil,$t_address) = split (/\s*<BR>s*/, $t_author, 3);
push @authors, $t_author;
push @affils, $t_affil;
push @addresses, $t_address;
}
} else {
$_ = &translate_environments($next);
$next = &translate_commands($_);
($t_author) = &simplify($next);
($t_author,$t_affil,$t_address) = split (/\s*<BR>s*/, $t_author, 3);
push @authors, $t_author;
push @affils, $t_affil if $t_affil;
push @addresses, $t_address if $t_address;
}
$after;
}
sub do_cmd_address {
local($_) = @_;
if (/\\endaddress/) {
$t_address = &translate_commands($`);
$t_address =~ s/(^\s*|\s*$)//g;
push @addresses, $t_address;
return($');
}
&get_next_optional_argument;
local($rest) = $_;
$t_address = &missing_braces unless (
($rest =~ s/$next_pair_pr_rx/$t_address=$&;''/eo)
||($rest =~ s/$next_pair_rx/$t_address=$&;''/eo));
($t_address) = &translate_commands($t_address);
push @addresses, $t_address;
$rest;
}
sub do_cmd_curraddr {
local($_) = @_;
&get_next_optional_argument;
local($rest) = $_;
$rest =~ s/$next_pair_pr_rx//o;
($t_curraddr) = &translate_commands($&);
push @curraddr, $t_curraddr;
$rest;
}
sub do_cmd_affil {
local($_) = @_;
if (/\\endaffil/) {
$t_affil = &translate_commands($`);
$t_affil =~ s/(^\s*|\s*$)//g;
push @affils, $t_affil;
return($');
}
&get_next_optional_argument;
local($rest) = $_;
$rest =~ s/$next_pair_pr_rx//o;
($t_affil) = &translate_commands($&);
push @affils, $t_affil;
$rest;
}
sub do_cmd_dedicatory {
local($_) = @_;
&get_next_optional_argument;
local($rest) = $_;
$rest =~ s/$next_pair_pr_rx//o;
($t_dedic) = &translate_commands($&);
$rest;
}
sub do_cmd_date {
local($_) = @_;
s/$next_pair_pr_rx//o;
($t_date) = &translate_commands($&);
$_;
}
sub do_cmd_email {
local($_) = @_;
&get_next_optional_argument;
local($rest) = $_;
$rest =~ s/$next_pair_pr_rx//o;
($t_email) = &make_href("mailto:$2","$2");
push @emails, $t_email;
$rest;
}
sub do_cmd_urladdr {
local($_) = @_;
s/$next_pair_pr_rx//o;
($t_authorURL) = &translate_commands($2);
push @authorURLs, $t_authorURL;
$_;
}
sub do_cmd_keywords {
local($_) = @_;
s/$next_pair_pr_rx//o;
($t_keywords) = &translate_commands($2);
$_;
}
sub do_cmd_subjclass {
local($_) = @_;
s/$next_pair_pr_rx//o;
($t_subjclass) = &translate_commands($2);
$_;
}
sub do_cmd_translator {
local($_) = @_;
s/$next_pair_pr_rx//o;
($t_translator) = &translate_commands($2);
$_;
}
sub do_cmd_MR {
local($_) = @_;
s/$next_pair_pr_rx//o;
($t_math_rev) = &translate_commands($2);
$_;
}
sub do_cmd_PII {
local($_) = @_;
s/$next_pair_pr_rx//o;
($t_publ_index) = &translate_commands($2);
$_;
}
sub do_cmd_copyrightinfo {
local($_) = @_;
s/$next_pair_pr_rx//o;
($t_copyright_year) = &translate_commands($2);
s/$next_pair_pr_rx//o;
($t_copyright_holder) = &translate_commands($2);
$_;
}
sub do_cmd_AmS {
local($_) = @_;
"<i>AmS</i>".$_;
}
sub do_cmd_AmSTeX {
local($_) = @_;
"<i>AmS-TeX</i>" . $_;
}
sub do_cmd_maketitle {
local($after) = @_;
local($the_title) = '';
if ($t_title) {
$the_title = "<H1 class=\"CENTER\">$t_title</H1>\n";
} else { &write_warnings("This document has no title."); }
if (($#authors > 0)||$MULTIPLE_AUTHOR_TABLE) {
$the_title .= &make_multipleauthors_title($alignc,$alignl);
} else {
$the_title .= &make_singleauthor_title($alignc,$alignl,$t_author
, $t_affil,$t_institute,$t_date,$t_address,$t_email,$t_authorURL);
}
if (($t_translator)&&!($t_translator=~/^\s*(($O|$OP)\d+($C|$CP))\s*\1\s*$/)) {
$the_title .= "<BR><P class=\"CENTER\">Translated by $t_translator</P>\n";}
if (($t_date)&&!($t_date=~/^\s*(($O|$OP)\d+($C|$CP))\s*\1\s*$/)) {
$the_title .= "<BR><P class=\"CENTER\"><B>Date:</B> $t_date</P>\n";}
if ($t_keywords) {
$the_title .= "<BR><P><P class=\"LEFT\"><SMALL>".
"Key words and phrases: $t_keywords</SMALL></P>\n";}
if ($t_subjclass) {
$the_title .= "<BR><P><P class=\"LEFT\"><SMALL>".
"1991 Mathematics Subject Classification: $t_subjclass</SMALL></P>\n";}
join("\n", $the_title, "<HR>", $after);
}
sub make_singleauthor_title{
local($alignc,$alignl,$t_author,$t_affil,$t_institute,$t_date,
$t_address,$t_email,$t_authorURL) = @_;
my $the_title = '';
if ($t_author) {
$the_title .= "<P class=\"CENTER\"><STRONG>$t_author</STRONG>\n";
} else { &write_warnings("There is no author for this document."); }
if (($t_affil)&&!($t_affil=~/^\s*(($O|$OP)\d+($C|$CP))\s*\1\s*$/)) {
$the_title .= "<BR>$t_affil\n";}
if ($t_address&&!($t_address=~/^\s*(($O|$OP)\d+($C|$CP))\s*\1\s*$/)) {
$the_title .= "<BR>$t_address\n"}
if ($t_email&&!($t_email=~/^\s*(($O|$OP)\d+($C|$CP))\s*\1\s*$/)) {
$the_title .= "<BR>$t_email</P>\n";
} else { $the_title .= "</P>" }
$the_title;
}
sub do_cmd_boldsymbol {
local($_) = @_;
s/$next_pair_pr_rx//o;
$_ = join('',"<B><I>$2</I></B>",$_);
$_;
}
# some simplifying macros that like
# to existing LaTeX constructions.
# are defined already in latex2html
#sub do_cmd_eqref {
# local($_) = @_;
# join('','(',&process_ref($cross_ref_mark,$cross_ref_mark,'',')'));
#}
#sub do_cmd_numberwithin {
# local(*_) = @_;
# local($ctr, $within);
# $ctr = &get_next(1);
# $within = &get_next(1);
# &addto_dependents($within,$ctr) if ($within);
# $_;
#}
######### for equation-numbers and tags ###############
sub get_eqn_number {
local($outer_num, $scan) = @_;
# an explicit \tag overrides \notag , \nonumber or *-variant
local($labels,$tag);
($scan,$labels) = &extract_labels($scan); # extract labels
# $scan =~ s/\n//g;
if ($scan =~ s/\\tag(\*|star\b)?\s*(($O|$OP)\d+($C|$CP))(.*)\2//s) {
local($star) = $1; $tag = $5;
$tag = &translate_environments($tag) if ($tag =~ /\\begin/);
$tag = &translate_commands($tag) if ($tag =~ /\\/);
$tag = (($star)? $tag : $EQNO_START.$tag.$EQNO_END );
} elsif (($outer_num)&&(!($scan)||!($scan =~ s/\\no(tag|number)//))
&&(!($scan =~ /^\s*\\begin(<(<|#)\d+(>|#)>)($outer_math_rx)/))
) {
$global{'eqn_number'}++ ;
if ($subequation_level) {
local($sub_tag) = &get_counter_value('equation');
$tag = join('', $EQNO_START
, $eqno_prefix
, &falph($sub_tag)
, $EQNO_END);
} else {
$tag = join('', $EQNO_START
, &simplify(&translate_commands("\\theequation"))
, $EQNO_END);
}
} else { $tag = ';SPMnbsp;' }
if ($labels) {
$labels =~ s/$anchor_mark/$tag/o;
($labels , $scan);
} else { ($tag , $scan) }
}
### Special environments, for mathematics
sub do_env_equationstar {
local($no_eqn_numbers) = 1;
&do_env_displaymath(@_);
}
sub do_env_subequations {
local($_) = @_;
local($align);
$align = join('', " ALIGN=\""
, (($EQN_TAGS =~ /L/)? 'LEFT' : 'RIGHT'), "\"")
unless ($HTML_VERSION < 2.2);
$latex_body .= join('', "\n\\setcounter{equation}{"
, $global{'eqn_number'} , "}\n");
$_ .= "%EQNO:".$global{'eqn_number'}."\n";
$global{'eqn_number'}++;
local($this) = &process_undefined_environment('subequations'
, ++$global{'max_id'}, $_);
local($div) = (($HTML_VERSION < 3.2)? 'P' : 'DIV');
join('', "<$div$align>\n" , $this, "<BR></$div>" )
}
sub do_cmd_proofname { ($prf_name ? $prf_name : 'Proof') . @_[0] }
sub do_cmd_qed {
local($env) = 'tex2html_wrap_inline';
join('', &process_math_in_latex('','',0,"\\qedsymbol"), @_[0]) }
sub do_env_proof {
local($proof_contents) = @_;
local($bproof, $eproof);
local($proof_name,$br_id);
if ((defined &do_cmd_proofname)||$new_command{'proofname'}) {
$br_id=++$global{'max_id'};
$proof_name = &translate_environments("$O$br_id$C\\itshape\\proofname$O$br_id$C");
} else { $proof_name = '<EM>'.$prf_name.'</EM>' }
$bproof = (($HTML_VERSION > 3.1)? "<DIV$env_id>" : '<P>');
$eproof = (($HTML_VERSION > 3.1)? '</DIV>' : '</P>') . '<P></P>';
local($qed);
if ($new_command{'qed'}) {
$br_id = ++$global{'max_id'};
$qed = &translate_commands(&translate_environments("$O$br_id$C\\qed$O$br_id$C"));
} else { $qed = &do_cmd_qed() }
$br_id = ++$global{'max_id'};
join ('', "<P></P>\n", $bproof , $proof_name.".\n"
, &translate_commands(&translate_environments("$O$br_id$C$proof_contents$O$br_id$C "))
, $qed , "\n".$eproof."\n" )
}
# Suppress the possible options to \usepackage[....]{amstex}
# and {amsmath} {amsopn} {amsthm}
sub do_amstex_leqno { $EQN_TAGS = 'L'; }
sub do_amstex_reqno { $EQN_TAGS = 'R'; }
sub do_amsmath_leqno { $EQN_TAGS = 'L'; }
sub do_amsmath_reqno { $EQN_TAGS = 'R'; }
sub do_amsmath_fleqn {}
sub do_amstex_centereqn {
}
sub do_amstex_centertags {
}
sub do_amstex_tbtags {
}
sub do_amstex_righttag { $EQN_TAGS = 'R'; }
sub do_amstex_ctagsplt {
}
%styles_loaded = ( %styles_loaded
, 'amsbsy' , 1 , 'amscd' , 1 , 'amsfonts' , 1 , 'amsthm' , 1
, 'amssymb' , 1 , 'amstext' , 1 , 'amsfonts' , 1 , 'amsopn' , 1
, 'amstex_noamsfonts' , 1 , 'amsmath_noamsfonts' , 1
, 'amstex_psamsfonts' , 1 , 'amsmath_psamsfonts' , 1
, 'amstex_intlim' , 1 , 'amsmath_intlim' , 1
, 'amstex_nonamelm' , 1 , 'amsmath_nonamelm' , 1
, 'amstex_nosumlim' , 1 , 'amsmath_nosumlim' , 1
);
%AMSenvs = (
'cases' , 'endcases'
, 'matrix' , 'endmatrix'
, 'bmatrix' , 'endbmatrix'
, 'Bmatrix' , 'endBmatrix'
, 'pmatrix' , 'endpmatrix'
, 'vmatrix' , 'endvmatrix'
, 'Vmatrix' , 'endVmatrix'
, 'smallmatrix' , 'endsmallmatrix'
, 'align' , 'endalign'
, 'alignat' , 'endalignat'
, 'xalignat' , 'endxalignat'
, 'xxalignat', 'endxxalignat'
, 'aligned' , 'endaligned'
, 'topaligned' , 'endtopaligned'
, 'botaligned' , 'endbotaligned'
, 'alignedat', 'endalignedat'
, 'flalign' , 'endflalign'
, 'gather' , 'endgather'
, 'multline' , 'endmultline'
, 'heading' , 'endheading'
, 'proclaim' , 'endproclaim'
, 'demo' , 'enddemo'
, 'roster' , 'endroster'
, 'ref' , 'endref'
, 'CD' , 'endCD'
);
&ignore_commands( <<_IGNORED_CMDS_);
comment # <<\\endcomment>>
displaybreak
allowdisplaybreak
allowdisplaybreaks
spreadlines
overlong
allowtthyphens
hyphenation
BlackBoxes
NoBlackBoxes
split
operatorname
operatornamewithlimits
qopname # {} # {}
text
thetag
mspace # {}
smash # []
topsmash
botsmash
medspace
negmedspace
thinspace
negthinspace
thickspace
negthickspace
hdots
hdotsfor # &ignore_numeric_argument
hcorrection # &ignore_numeric_argument
vcorrection # &ignore_numeric_argument
delimiterfactor # &ignore_numeric_argument
topmatter
endtopmatter
overlong
nofrills
phantom # {}
hphantom # {}
vphantom # {}
minCDarrowwidth # {}
chapterrunhead # {} # {} # {}
sectionrunhead # {} # {} # {}
partrunhead # {} # {} # {}
_IGNORED_CMDS_
&process_commands_in_tex (<<_RAW_ARG_CMDS_);
#overset # {} # {}
#sideset # {} # {} # {}
#underset # {} # {}
overleftarrow # {}
underleftarrow # {}
overrightarrow # {}
underrightarrow # {}
overleftrightarrow # {}
underleftrightarrow # {}
xleftarrow # [] # {}
xrightarrow # [] # {}
#oversetbrace # <<\\to>> # {}
#undersetbrace # <<\\to>> # {}
genfrac # {} # {} # {} # {} # {} # {}
cfrac # [] # {} # {}
#cfrac # <<\\endcfrac>>
lcfrac # <<\\endcfrac>>
rcfrac # <<\\endcfrac>>
CD # <<\\endCD>>
fracwithdelims # &ignore_numeric_argument(); # {} # {}
thickfrac # <<\\thickness>> # &ignore_numeric_argument(); # {} # {}
thickfracwithdelims # <<\\thickness>> # &ignore_numeric_argument(); # {} # {}
boxed # {}
mathbb # {}
mathfrak # {}
Hat # {}
Breve # {}
Grave # {}
Bar # {}
Dot # {}
Check # {}
Acute # {}
Tilde # {}
Vec # {}
Ddot # {}
dddot # {}
ddddot # {}
_RAW_ARG_CMDS_
&process_commands_inline_in_tex (<<_RAW_ARG_CMDS_);
qedsymbol
_RAW_ARG_CMDS_
&process_commands_nowrap_in_tex (<<_RAW_ARG_NOWRAP_CMDS_);
numberwithin # {} # {}
_RAW_ARG_NOWRAP_CMDS_
# add later extensions, which require `math' to be loaded
if (($NO_SIMPLE_MATH)&&(defined &make_math)) {
&do_require_package('more_amsmath');
} elsif ($HTML_VERSION > 3.1) {
require "$LATEX2HTMLVERSIONS${dd}math.pl";
$NO_MATH_PARSING = $NO_SIMPLE_MATH = 1;
&do_require_package('more_amsmath');
}
1; # This must be the last line