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# Copyright (c) 1997-2024
# Ewgenij Gawrilow, Michael Joswig, and the polymake team
# Technische Universität Berlin, Germany
# https://polymake.org
#
# 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: http://www.gnu.org/licenses/gpl.txt.
#
# 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.
#-------------------------------------------------------------------------------
# Functions defined here deliver filters for comparing output files produced by various visualisation functions
# with specimen files.
# The purpose of these filters is to remove variable parts of the output like timestamps or
# architecture-dependent values like point coordinates computed by spring embedder.
# Each filter is an anonymous subroutine expecting the current line in $_.
###################################################################################
sub filter_JVX {
sub {
s{(^\s*<meta (?:date|generator)=)".*?"(\s*/>)}{$1"XXX"$2};
}
}
sub filter_JVX_random_points {
my $dim=shift;
--$dim;
( filter_JVX(),
sub {
s{(^\s* <p (?:\s+ name=".*?")? >) [0-9.e+-]+ (?:\s+ [0-9.e+-]+){$dim} (</p>)}{${1}XXX${2}}x;
}
)
}
###################################################################################
sub filter_OFF_random_points {
my $dim=shift;
--$dim;
my $active=0;
sub {
if ($active==0) {
$active=-1 if /SKEL|COFF/;
} elsif ($active<0) {
($active)=/^(\d+)/; # number of points on the following lines
} else {
--$active;
s{^ [0-9.e+-]+ (?:\s+ [0-9.e+-]+){$dim} $}{XXX}x;
}
}
}
###################################################################################
sub filter_Java_random_points {
my $dim=shift;
--$dim;
sub {
s{\{ [0-9.e+-]+ (?:, [0-9.e+-]+){$dim} \}}{{XXX}}x;
}
}
###################################################################################
sub filter_PS_random_points {
sub {
s{(%%(?:Page)?BoundingBox:)(?: [0-9.]+){4}$}{$1 X Y X Y}
or
s{(?: [0-9.]+){4} (edge)$}{X Y X Y $1}
or
s{(?: [0-9.]+){2} (CenteredLabel)$}{X Y $1}
}
}
###################################################################################
sub filter_MP {
sub {
s{^(% (?:produced by polymake for|date:)) .*}{$1 XXX};
}
}
sub filter_MP_random_points {
my $dim=shift;
--$dim;
( filter_MP(),
sub {
s{(^\s* p\[\d+\] \s* := \s* \() [0-9.-]+ (?:, [0-9.-]+){$dim} (\))}{${1}XXX${2}}x;
}
)
}
###################################################################################
sub filter_graphviz {
# remove name
sub {
s{^(di)*graph\s+"(.*)"\s+}{};
}
}
###################################################################################
sub filter_POV {
# remove absolute paths
sub {
s{(?:/[^/]+)+?(/povray/)}{/XXX$1};
}
}
sub filter_POV_random_points {
my $dim=shift;
--$dim;
( filter_POV(),
sub {
s{< [0-9.e+-]+ (?:, [0-9.e+-]+){$dim} >}{XXX}x;
}
)
}
###################################################################################
sub filter_sketch {
# remove comments and take care of floating errors
sub {
s{^%.*}{};
s{\.(\d{4})\d+}{\.$1}g;
s{(\d+)\.9999}{$1+1}e;
s{(\d+)\.0000}{$1};
s{-0([^.])}{0$1};
}
}
###################################################################################
sub filter_svg {
my ($nocoord) = @_;
my $comment = 0;
# remove comments and take care of floating errors
sub {
if ($_ =~ s{^\s*<!--.*$}{}) {
$comment = 1;
return;
}
if ($_ =~ s{^\s*-->}{}) {
$comment = 0;
return;
}
if ($comment) {
undef $_;
return;
}
if (/style="([^"]*)"/) {
my $style = join("; ", sort(split(/;\s*/,$1)));
s{style="([^"]*)"}{style="$style"}g;
}
s{<(\w+)\s+>}{<$1>}g;
s{<!--.*-->}{}g;
if ($nocoord) {
s{"(?:-?\d+(?:\.\d+)? ?)+"}{X.XXX}g;
} else {
s{\.(\d{1})\d+}{\.$1}g;
s{(\d+)\.9}{$1+1}e;
s{(\d+)\.0}{$1};
}
}
}
sub filter_svg_random_points {
filter_svg(true);
}
###################################################################################
sub filter_threejs {
my ($nocoord) = @_;
my $in_common_code_block = 0;
# remove comments, timestamp and code that does not depend on the object to visualize and take care of floating errors
sub {
if ($_ =~ s{^// COMMON_CODE_BLOCK_BEGIN\b\K.*$}{}) {
$in_common_code_block = 1;
return;
}
if ($_ =~ s{^// COMMON_CODE_BLOCK_END\b\K.*$}{}) {
$in_common_code_block = 0;
return;
}
if ($in_common_code_block) {
undef $_;
return;
}
s{^//.*}{};
s{<!--.*-->}{}g;
if ($nocoord) {
s{new PMPoint\(\K(\s*-?\d+(?:\.\d+)\s*),(?-1),(?-1)(?=\))}{XXX,XXX,XXX}g;
}
s{\.(\d{2})\d+}{\.$1}g;
s{(\d+)\.99}{$1+1}e;
s{(\d+)\.00}{$1};
s{-0([^.])}{0$1};
s{^polymake for .*$}{};
s{^(Mon|Tue|Wed|Thu|Fri|Sat|Sun) \w{3} .*$}{};
s{^<div id=\"model[0-9]*\"></div>}{<div id=\"model\"></div>};
# strip absolute paths from resource links
s{src='\K/.*?/(?=js/)}{};
}
}
sub filter_threejs_random_points {
filter_threejs(true);
}
# Local Variables:
# mode: perl
# cperl-indent-level:3
# End:
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