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#!/usr/bin/perl -w
#############################################################################
# This example is a bit outdated, please use the new bin/grapheasy script -
# which is after "make install" available in your system as simple as
# "grapheasy" on any command line prompt.
#############################################################################
# This script tries to generate graphs from all the files in t/syntax/
# and outputs the result as an HTML page.
# Use it like:
# examples/syntax.pl >test.html
# and then open test.html in your favourite browser.
BEGIN
{
chdir 'examples' if -d 'examples';
use lib '../lib';
}
use strict;
use warnings;
use Graph::Easy::Parser;
my $parser = Graph::Easy::Parser->new( debug => 0);
my ($name, $template, $sep, @dirs) = @ARGV;
$name = 'Graph::Easy Test page' unless $name;
$template = 'syntax.tpl' unless $template;
my @toc = ();
open FILE, $template or die ("Cannot read 'syntax.tpl': $!");
local $/ = undef;
my $html = <FILE>;
close FILE;
my $output = ''; my $ID = '0';
# generate the parts and push their names into @toc
gen_graphs($parser, @dirs);
my $toc = '<ul>';
for my $t (@toc)
{
$toc .= " <li><a href='#$t->[0]'>$t->[1]</a>\n";
}
$toc .= "</ul>\n";
# insert the TOC
$html =~ s/##TOC##/ $toc /;
$html =~ s/##NAME##/ $name /;
$html =~ s/##HTML##/ $output /;
$html =~ s/##time##/ scalar localtime() /eg;
$html =~ s/##version##/$Graph::Easy::VERSION/eg;
print $html;
# all done;
1;
#############################################################################
sub gen_graphs
{
# for all files in a dir, generate a graph from it
my $parser = shift;
@dirs = qw/syntax stress/ unless @dirs;
foreach my $dir (@dirs)
{
_for_all_files($parser, $dir);
}
}
sub _for_all_files
{
my ($parser, $dir) = @_;
opendir DIR, "../t/$dir" or die ("Cannot read dir '../t/$dir': $!");
my @files = readdir DIR;
closedir DIR;
foreach my $file (sort @files)
{
my $f = "../t/$dir/" . $file;
next unless -f $f; # not a file?
print STDERR "# at file $f\n";
open FILE, "$f" or die ("Cannot read '$f': $!");
local $/ = undef;
my $input = <FILE>;
close FILE;
my $graph = $parser->from_text( $input );
if (!defined $graph)
{
my $error = $parser->error();
$output .=
"<h2>$dir/$file</h2>" .
"<a class='top' href='#top' title='Go to the top'>Top -^</a>\n".
"<div class='text'>\n".
"Error: Could not parse input from $file: <b style='color: red;'>$error</b>".
"<br>Input was:\n" .
"<pre>$input</pre>\n".
"</div>\n";
next;
}
$graph->timeout(100);
$graph->layout();
if ($graph->error())
{
my $error = $graph->error();
$output .=
"<h2>$dir/$file</h2>" .
"<a class='top' href='#top' title='Go to the top'>Top -^</a>\n".
"<div class='text'>\n".
"Error: $error</b>".
"<br>Input was:\n" .
"<pre>$input</pre>\n".
"</div>\n";
next;
}
$output .= out ($input, $graph, 'html', $dir, $file);
}
}
sub out
{
my ($txt,$graph,$method,$dir, $file) = @_;
$method = 'as_' . $method;
# set unique ID for CSS
$graph->id($ID++);
my $t = $graph->nodes() . ' Nodes, ' . $graph->edges . ' Edges';
my $n = $dir."_$file";
$dir = ucfirst($dir);
# get comment
$txt =~ /^\s*#\s*(.*)/;
my $comment = ucfirst($1 || '');
my $link;
$link = $1 if $txt =~ /\n#\s*(http.*)/;
my $name = $comment || $t;
push @toc, [ $n, $name ];
my $out =
"<style type='text/css'>\n" .
"<!--\n" .
$graph->css() .
"-->\n" .
"</style>\n";
if (!$sep)
{
$out .=
"<a name=\"$n\"></a><h2>$dir: $name</h2>\n" .
"<a class='top' href='#top' title='Go to the top'>Top -^</a>\n".
"<div class='text'>\n";
$out .= "<span style='color: red; font-weight: bold;'>Error: </span>" .
$graph->error() if $graph->error();
my $input =
"<div style='float: left;'>\n" .
" <h3>Input</h3>\n" .
" <pre>$txt</pre>\n</div>" .
"<div style='float: left;'>\n" .
" <h3>As Text</h3>\n" .
"<pre>" . $graph->as_txt() . "</pre>\n</div>";
$out .= $input .
"<div style='float: left;'>\n" .
"<h3>As HTML:</h3>\n" .
$graph->$method() . "\n</div>\n";
$out .= "<div class='clear'> </div></div>\n\n";
}
else
{
$out .=
"<a name=\"$n\"></a><h3>$name</h3>\n";
$out .= "<a class='top' href='#top' title='Go to the top'>Top -^</a>\n";
$out .= "<a class='top' href='$link' style='color: red;'>Source</a>\n" if $link;
$out .= "<span style='color: red; font-weight: bold;'>Error: </span> " .
$graph->error() if $graph->error();
$out .= $graph->$method() . "\n" .
"<div class='clear'></div>\n\n";
# write out the input/text
}
$out;
}
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