From 3edb670600b0b243a2353d4d912b5d4f1aa050ae Mon Sep 17 00:00:00 2001
From: Alex 'AdUser' Z <ad_user@runbox.com>
Date: Mon, 13 Apr 2015 10:06:35 +1000
Subject: [PATCH] + Text::Dokuwiki

---
 lib/Text/Dokuwiki.pm | 123 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 123 insertions(+)
 create mode 100644 lib/Text/Dokuwiki.pm

diff --git a/lib/Text/Dokuwiki.pm b/lib/Text/Dokuwiki.pm
new file mode 100644
index 0000000..08aae92
--- /dev/null
+++ b/lib/Text/Dokuwiki.pm
@@ -0,0 +1,123 @@
+package Text::Dokuwiki;
+
+use strict;
+use warnings;
+use feature qw/ switch /;
+use utf8;
+
+use Data::Dumper;
+
+sub new {
+  my ($class) = @_;
+  my $self = {};
+
+  return bless($self, $class);
+}
+
+sub parse {
+  my ($self, $text) = @_;
+  my ($tree, $mode, $attrs, $buf) = ([], 'text', '', '');
+
+  my @lines = split /\r?\n/o, $text;
+  my $linenum = 0;
+
+  foreach my $line (@lines) {
+    $linenum++;
+
+    given ($mode) {
+      when ("codeblk") {
+        if ($line =~ m{^\s*</code>}o) {
+          push @{ $tree }, [code => $attrs, 0 => $buf];
+          ($buf, $attrs, $mode) = ('', {}, undef); next;
+        }
+        $buf .= $line . "\n";
+      }
+      when ("code") {
+        if ($line =~ m/^\s{2}(.+)/o) {
+          $buf .= $line . "\n"; next;
+        } else {
+          push @{ $tree }, [pre => {}, 0 => $buf];
+          ($buf, $attrs, $mode) = ('', {}, undef); continue;
+        }
+      }
+      when ("list") {
+        if ($line =~ m/^\s{2}([\*-])\s+(.+)/o) {
+          push @{ $buf }, [li => {}, 0 => $2];
+          next;
+        } else {
+          push @{ $tree }, [ul => {}, @$buf]; # TODO: lost list type
+          ($buf, $attrs, $mode) = ('', {}, undef); continue;
+        }
+      }
+      when ("table") {
+        ...
+      }
+    }
+
+
+    given ($line) {
+      # header
+      when (m/^\s?(={1,6}) (.+) \g{1}\s*/o) {
+        my $level = $1 =~ tr/=/=/;
+        $level = 7 - $level; # invert
+        push @{ $tree }, ["h$level" => {}, 0 => $2];
+        next;
+      }
+      # code block
+      when (m/^\s?<code\s*(\S+)?>\s*$/o) {
+        $attrs = ($2) ? {class => $2} : {};
+        $mode = "codeblk";
+        next;
+      }
+      # lists
+      when (m/^\s{2}([\*-])\s+(.+)/o) {
+        $mode = 'list';
+        $buf  = [];
+        push @{ $buf }, [li => {}, 0 => $2];
+        next;
+      }
+      # table
+      when (m/^\s?[\|\^]/o) {
+        $mode = 'table';
+        $buf = $line . "\n"; # render later
+        next;
+      }
+      # code idented with two spaces
+      when (m/^\s{2}(\S.+)/o) {
+        $mode = 'code';
+        $buf = $line . "\n";
+        next;
+      }
+      # nonempty line
+      when (m/^\s?(\S.+)/o) {
+        push @{ $tree }, [p => {}, 0 => $1];
+        next;
+      }
+      # empty lines;
+      when (m/^\s*$/) {
+        push @{ $tree }, [br => {}];
+        $mode = undef;
+        next;
+      }
+      # catchall
+      default {
+        printf "Unmatched % 3d: %s\n", $linenum, $line;
+        continue;
+      }
+    }
+  }
+
+  return $tree;
+}
+
+1;
+
+__END__
+
+[div => {class => 'block'},           # <div class='block'>
+  0 => 'text1',                       #   Hello!
+  [strong => {}, 0 => 'bold text'],   #   <strong>user</strong>
+  0 => ', this is converted text.',   #   , this is converted text.
+  [br => {}],                         #   <br/>
+  [p => {}, 0 => 'Second paragraph']  #   <p>Second paragraph</p>
+]                                     # </div>