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|
# -*- mode: Perl -*-
# /=====================================================================\ #
# | psfrag | #
# | Implementation for LaTeXML | #
# |=====================================================================| #
# | Part of LaTeXML: | #
# | Public domain software, produced as part of work done by the | #
# | United States Government & not subject to copyright in the US. | #
# |---------------------------------------------------------------------| #
# | Bruce Miller <bruce.miller@nist.gov> #_# | #
# | http://dlmf.nist.gov/LaTeXML/ (o o) | #
# \=========================================================ooo==U==ooo=/ #
package LaTeXML::Package::Pool;
use strict;
use warnings;
use LaTeXML::Package;
use LaTeXML::Util::Image;
#======================================================================
# Would be lovely to overlay SVG, MathML, Images etc
# but kinda impractical to hope to align things the same way as LaTeX would.
# So, we just punt all of it to LaTeX to create a composite image
# Store fragments for later use
AssignValue(saved_psfragments => Tokens());
AssignValue(psfrag_scan_all => LookupValue('2.09_COMPATIBILITY'));
AssignValue(psfrag_scan => 0);
DeclareOption('209mode', sub { AssignValue(psfrag_scan_all => 1); });
DeclareOption('2emode', sub { AssignValue(psfrag_scan_all => 0); });
DeclareOption('scanall', sub { AssignValue(psfrag_scan_all => 1); });
ProcessOptions();
sub save_psfrag {
my (@stuff) = @_;
return unless @stuff;
# NOT global!!! And defer expansion of the leading CS
AssignValue(saved_psfragments =>
Tokens(LookupValue('saved_psfragments')->unlist, T_CS('\noexpand'), @stuff));
return; }
sub unsave_psfrag {
return Tokens(Digest(LookupValue('saved_psfragments'))->revert); }
# NOT a constructor since probably args should not be digested yet(?)
DefPrimitive('\psfrag OptionalMatch:* Semiverbatim [][][][]{}', sub {
my ($stomach, $star, $a, $b, $c, $d, $e, $f) = @_;
# Guard against empty $$ argument.
my @argt = $f->unlist;
if ((scalar(@argt) == 2) && ($argt[0][1] == CC_MATH) && ($argt[1][1] == CC_MATH)) {
$f = Tokens(); }
save_psfrag(Invocation(T_CS('\lx@delayed@psfrag'), $star, $a, $b, $c, $d, $e, $f));
return; });
DefConstructor('\lx@delayed@psfrag OptionalMatch:* Semiverbatim [][][][]{}', '',
alias => '\psfrag');
DefConstructor('\psfragscanon', '',
afterDigest => sub {
save_psfrag(T_CS('\psfragscanon'));
AssignValue(psfrag_scan => 1); });
DefConstructor('\psfragscanoff', '',
afterDigest => sub {
save_psfrag(T_CS('\psfragscanoff'));
AssignValue(psfrag_scan => 0); });
# AVOID using ltx:picture instead of ltx:graphic
# unless there actually are some psfrags defined, OR embedded fragments was explicitly enabled.
# (faster, probably more reliable image conversion)
sub psfrag_requirepicture {
my (@candidates) = @_;
my $have_ps = 0;
if (scalar(@candidates) == 1) {
my $type = image_type(pathname_absolute($candidates[0], LookupValue('SOURCEDIRECTORY')));
$have_ps = ($type eq 'ps') || ($type eq 'eps'); }
my $have_frags = scalar(LookupValue('saved_psfragments')->unlist);
my $scan_on = LookupValue('psfrag_scan') || LookupValue('psfrag_scan_all');
return $have_ps && ($have_frags || $scan_on); }
# For graphics version of \includegraphics
DefConstructor('\lx@psfrag@includegraphics OptionalMatch:* [][] Semiverbatim',
"?#pic(<ltx:picture width='#width' height='#height' unitlength='#unitlength' tex='#tex'/>)"
. "(<ltx:graphics graphic='#path' candidates='#candidates' options='#options'/>)",
alias => '\includegraphics',
sizer => \&image_graphicx_sizer,
properties => sub {
my ($stomach, $starred, $op1, $op2, $graphic) = @_;
my $options = graphicS_options($starred, $op1, $op2);
my ($path, @candidates) = image_candidates(ToString($graphic));
my $ifpicture = psfrag_requirepicture(@candidates);
(graphic => $path,
candidates => join(',', @candidates),
options => $options,
pic => $ifpicture); },
afterDigest => sub {
my ($stomach, $whatsit) = @_;
my ($w, $h, $d) = $whatsit->getSize;
AssignValue(psfrag_scan => 0, 'global');
my $untex = UnTeX(Tokens(unsave_psfrag(), $whatsit->revert), 1);
$whatsit->setProperties(tex => $untex,
width => $w, height => $h, depth => $d); });
# For graphicx version of \includegraphics
DefConstructor('\lx@psfrag@includegraphicx OptionalMatch:* OptionalKeyVals:Gin Semiverbatim',
"?#pic(<ltx:picture width='#width' height='#height' unitlength='#unitlength' tex='#tex'/>)"
. "(<ltx:graphics graphic='#path' candidates='#candidates' options='#options'/>)",
alias => '\includegraphics',
sizer => \&image_graphicx_sizer,
properties => sub {
my ($stomach, $starred, $kv, $graphic) = @_;
my $options = graphicX_options($starred, $kv);
my ($path, @candidates) = image_candidates(ToString($graphic));
my $ifpicture = psfrag_requirepicture(@candidates);
(path => $path,
candidates => join(',', @candidates),
options => $options,
pic => $ifpicture); },
afterDigest => sub {
my ($stomach, $whatsit) = @_;
my ($w, $h, $d) = $whatsit->getSize;
AssignValue(psfrag_scan => 0, 'global');
my $untex = UnTeX(Tokens(unsave_psfrag(), $whatsit->revert), 1);
$whatsit->setProperties(tex => $untex,
width => $w, height => $h, depth => $d); });
DefConstructor('\lx@psfrag@epsfbox[] Semiverbatim',
"?#pic(<ltx:picture width='#width' height='#height' unitlength='#unitlength' tex='#tex'/>)"
. "(<ltx:graphics graphic='#path' candidates='#candidates' options='#options'/>)",
alias => '\epsfbox',
sizer => \&image_graphicx_sizer,
properties => sub {
my ($stomach, $bb, $graphic) = @_;
my $clip = LookupValue('epsf_clip');
my $options = ($clip ? ($bb ? "viewport=$bb, clip" : "clip") : '');
my ($path, @candidates) = image_candidates(ToString($graphic));
my $ifpicture = psfrag_requirepicture(@candidates);
(graphic => $path,
candidates => join(',', @candidates),
options => $options,
pic => $ifpicture); },
afterDigest => sub {
my ($stomach, $whatsit) = @_;
my ($w, $h, $d) = $whatsit->getSize;
AssignValue(psfrag_scan => 0, 'global');
my $untex = UnTeX(Tokens(unsave_psfrag(), $whatsit->revert), 1);
$whatsit->setProperties(tex => $untex,
width => $w, height => $h, depth => $d); });
# Just for grouping
DefEnvironment('{psfrags}', '#body');
# Note that if psfrag is loaded, ANY eps figure may have embedded TeX
# that needs to be processed by LaTeX, so really needs to end up as ltx:picture
AtBeginDocument(<<'EoTeX');
\@ifundefined{@includegraphics}{}{
\global\let\lx@orig@includegraphics\@includegraphics
\global\let\@includegraphics\lx@psfrag@includegraphics}
\@ifundefined{@includegraphicx}{}{
\global\let\lx@orig@includegraphicx\@includegraphicx
\global\let\@includegraphicx\lx@psfrag@includegraphicx}
\@ifundefined{epsfbox}{}{
\global\let\lx@orig@epsfbox\epsfbox
\global\let\epsfbox\lx@psfrag@epsfbox}
EoTeX
#**********************************************************************
1;
|
