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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE language SYSTEM "language.dtd">
<!--
   This file is part of the KDE project
   Copyright (C) 2001, 2002, 2003, 2004 Anders Lund <anders@alweb.dk>

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License version 2 as published by the Free Software Foundation.

   This library 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
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public License
   along with this library; see the file COPYING.LIB.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
   Boston, MA 02110-1301, USA.

   *** NOTICE ***
   This file is maintained by Anders Lund <anders@alweb.dk>
   Please do not commit changes without checking with me.

   *** TODO ***

   Work on the comment support in the REPLACEMENT part of s/// - we may support
   the comment, if the line remainder does not contain the delimiter char.

   Try to support ?PATTERN? (at least in one line, like if "\?(?=.*\?)" matches).

   parse code behind '<<HEREDELIMITER' as code, or at least ignore it, to eol.
   Requires the ability to pass the delimiter through a context level.

   find a here delimiter like '*END*' (Shell.pm). Requires that when a regex is
   inserting a dynamic string, it escapes [*(){}$[]

   support for more regex extensions, such as (?>), (?{}), (?(cond)yes|no)

   Enhance tr/// and y/// support.
-->
<language name="Perl" version="1.23" kateversion="2.4" section="Scripts" extensions="*.pl;*.pm" mimetype="application/x-perl;text/x-perl" author="Anders Lund (anders@alweb.dk)" license="LGPL">
  <highlighting>
    <list name="keywords">
      <item> if </item>
      <item> unless </item>
      <item> else </item>
      <item> elsif </item>
      <item> while </item>
      <item> until </item>
      <item> for </item>
      <item> each </item>
      <item> foreach </item>
      <item> next </item>
      <item> last </item>
      <item> break </item>
      <item> continue </item>
      <item> return </item>
      <item> use </item>
      <item> no </item>
      <item> require </item>
      <item> my </item>
      <item> our </item>
      <item> local </item>
      <item> BEGIN </item>
      <item> END </item>
      <item>require</item>
      <item> package </item>
      <item> sub </item>
      <item> do </item>
      <item> __END__ </item>
      <item> __DATA__ </item>
      <item> __FILE__ </item>
      <item> __LINE__ </item>
      <item> __PACKAGE__ </item>
    </list>
    <list name="operators">
      <item> = </item>
      <item> != </item>
      <item> ~= </item>
      <item> += </item>
      <item> -= </item>
      <item> *= </item>
      <item> /= </item>
      <item> **= </item>
      <item> |= </item>
      <item> ||= </item>
      <item> &amp;= </item>
      <item> &amp;&amp;= </item>
      <item> ?= </item>
      <item> + </item>
      <item> - </item>
      <item> * </item>
     <!-- <item> / </item>//-->
      <item> % </item>
      <item> || </item>
      <item> &amp;&amp; </item>
      <item> | </item>
      <item> &amp; </item>
      <item> &lt; </item>
      <item> &lt;&lt; </item>
      <item> &gt; </item>
      <item> &gt;&gt; </item>
      <item> ^ </item>
      <item> -&gt; </item>
      <item> =&gt; </item>
      <item> . </item>
      <item> , </item>
      <item> ; </item>
      <item> :: </item>
      <item> \ </item>
      <item> and </item>
      <item> or </item>
      <item> not </item>
      <item> eq </item>
      <item> ne </item>
      <item> lt </item>
      <item> gt </item>
      <item> le </item>
      <item> ge </item>
      <item> cmp </item>
    </list>
    <list name="functions">
      <item>abs</item>
      <item>accept</item>
      <item>alarm</item>
      <item>atan2</item>
      <item>bind</item>
      <item>binmode</item>
      <item>bless</item>
      <item>caller</item>
      <item>chdir</item>
      <item>chmod</item>
      <item>chomp</item>
      <item>chop</item>
      <item>chown</item>
      <item>chr</item>
      <item>chroot</item>
      <item>close</item>
      <item>closedir</item>
      <item>connect</item>
      <item>cos</item>
      <item>crypt</item>
      <item>dbmclose</item>
      <item>dbmopen</item>
      <item>defined</item>
      <item>delete</item>
      <item>die</item>
      <item>dump</item>
      <item>endgrent</item>
      <item>endhostent</item>
      <item>endnetent</item>
      <item>endprotoent</item>
      <item>endpwent</item>
      <item>endservent</item>
      <item>eof</item>
      <item>eval</item>
      <item>exec</item>
      <item>exists</item>
      <item>exit</item>
      <item>exp</item>
      <item>fcntl</item>
      <item>fileno</item>
      <item>flock</item>
      <item>fork</item>
      <item>format</item>
      <item>formline</item>
      <item>getc</item>
      <item>getgrent</item>
      <item>getgrgid</item>
      <item>getgrnam</item>
      <item>gethostbyaddr</item>
      <item>gethostbyname</item>
      <item>gethostent</item>
      <item>getlogin</item>
      <item>getnetbyaddr</item>
      <item>getnetbyname</item>
      <item>getnetent</item>
      <item>getpeername</item>
      <item>getpgrp</item>
      <item>getppid</item>
      <item>getpriority</item>
      <item>getprotobyname</item>
      <item>getprotobynumber</item>
      <item>getprotoent</item>
      <item>getpwent</item>
      <item>getpwnam</item>
      <item>getpwuid</item>
      <item>getservbyname</item>
      <item>getservbyport</item>
      <item>getservent</item>
      <item>getsockname</item>
      <item>getsockopt</item>
      <item>glob</item>
      <item>gmtime</item>
      <item>goto</item>
      <item>grep</item>
      <item>hex</item>
      <item>import</item>
      <item>index</item>
      <item>int</item>
      <item>ioctl</item>
      <item>join</item>
      <item>keys</item>
      <item>kill</item>
      <item>last</item>
      <item>lc</item>
      <item>lcfirst</item>
      <item>length</item>
      <item>link</item>
      <item>listen</item>
      <item>localtime</item>
      <item>lock</item>
      <item>log</item>
      <item>lstat</item>
      <item>map</item>
      <item>mkdir</item>
      <item>msgctl</item>
      <item>msgget</item>
      <item>msgrcv</item>
      <item>msgsnd</item>
      <item>oct</item>
      <item>open</item>
      <item>opendir</item>
      <item>ord</item>
      <item>pack</item>
      <item>package</item>
      <item>pipe</item>
      <item>pop</item>
      <item>pos</item>
      <item>print</item>
      <item>printf</item>
      <item>prototype</item>
      <item>push</item>
      <item>quotemeta</item>
      <item>rand</item>
      <item>read</item>
      <item>readdir</item>
      <item>readline</item>
      <item>readlink</item>
      <item>recv</item>
      <item>redo</item>
      <item>ref</item>
      <item>rename</item>
      <item>reset</item>
      <item>return</item>
      <item>reverse</item>
      <item>rewinddir</item>
      <item>rindex</item>
      <item>rmdir</item>
      <item>scalar</item>
      <item>seek</item>
      <item>seekdir</item>
      <item>select</item>
      <item>semctl</item>
      <item>semget</item>
      <item>semop</item>
      <item>send</item>
      <item>setgrent</item>
      <item>sethostent</item>
      <item>setnetent</item>
      <item>setpgrp</item>
      <item>setpriority</item>
      <item>setprotoent</item>
      <item>setpwent</item>
      <item>setservent</item>
      <item>setsockopt</item>
      <item>shift</item>
      <item>shmctl</item>
      <item>shmget</item>
      <item>shmread</item>
      <item>shmwrite</item>
      <item>shutdown</item>
      <item>sin</item>
      <item>sleep</item>
      <item>socket</item>
      <item>socketpair</item>
      <item>sort</item>
      <item>splice</item>
      <item>split</item>
      <item>sprintf</item>
      <item>sqrt</item>
      <item>srand</item>
      <item>stat</item>
      <item>study</item>
      <item>sub</item>
      <item>substr</item>
      <item>symlink</item>
      <item>syscall</item>
      <item>sysread</item>
      <item>sysseek</item>
      <item>system</item>
      <item>syswrite</item>
      <item>tell</item>
      <item>telldir</item>
      <item>tie</item>
      <item>time</item>
      <item>times</item>
      <item>truncate</item>
      <item>uc</item>
      <item>ucfirst</item>
      <item>umask</item>
      <item>undef</item>
      <item>unlink</item>
      <item>unpack</item>
      <item>unshift</item>
      <item>untie</item>
      <item>utime</item>
      <item>values</item>
      <item>vec</item>
      <item>wait</item>
      <item>waitpid</item>
      <item>wantarray</item>
      <item>warn</item>
      <item>write</item>
    </list>
    <list name="pragmas">
      <item>strict</item>
      <item>english</item>
      <item>warnings</item>
      <item>vars</item>
      <item>subs</item>
      <item>utf8</item>
      <item>sigtrap</item>
      <item>locale</item>
      <item>open</item>
      <item>less</item>
      <item>integer</item>
      <item>filetest</item>
      <item>constant</item>
      <item>bytes</item>
      <item>diagnostics</item>
    </list>
    <contexts>
      <context name="normal" attribute="Normal Text" lineEndContext="#stay">
        <RegExpr attribute="Keyword" context="#stay" String="^#!\/.*" />
        <StringDetect attribute="Keyword" context="data_handle" String="__DATA__" firstNonSpace="true" />
        <StringDetect attribute="Keyword" context="#stay" String="__END__" firstNonSpace="true"/>
        <RegExpr attribute="Keyword" context="sub_name_def" String="\bsub\s+" />
        <keyword attribute="Keyword" context="#stay" String="keywords" />
        <keyword attribute="Operator" context="#stay" String="operators" />
        <keyword attribute="Function" context="#stay" String="functions" />
        <keyword attribute="Pragma" context="#stay" String="pragmas" />
        <RegExpr attribute="Pod" context="pod" String="\=(?:head[1-6]|over|back|item|for|begin|end|pod)(\s|$)" column="0" beginRegion="POD"/>
        <DetectSpaces />
        <DetectChar attribute="Comment" context="comment" char="#" />

        <HlCOct attribute="Octal" context="slash_safe_escape" />
        <HlCHex attribute="Hex" context="slash_safe_escape" />
        <Float attribute="Float" context="slash_safe_escape" />
        <Int attribute="Decimal" context="slash_safe_escape" />

        <RegExpr attribute="Normal Text" context="#stay" String="\\([&quot;'])[^\1]" />
        <Detect2Chars attribute="Normal Text" context="#stay" char="&amp;" char1="'" /><!-- ??? -->
        <DetectChar attribute="Operator" context="ip_string" char="&quot;" beginRegion="String" />
        <DetectChar attribute="Operator" context="string" char="'"  beginRegion="String"/>
        <DetectChar attribute="Operator" context="Backticked" char="`" />

        <RegExpr attribute="Normal Text" context="find_variable" String="(?:[$@]\S|%[\w{]|\*[^\d\*{\$@%=(])" lookAhead="true" />

        <RegExpr attribute="Keyword" context="#stay" String="&lt;[A-Z0-9_]+&gt;" />

        <RegExpr attribute="Operator" context="find_here_document" String="\s*&lt;&lt;(?=\w+|\s*[&quot;'])" beginRegion="HereDocument" />

        <RegExpr attribute="Normal Text" context="#stay" String="\s*\}\s*/" endRegion="Block"/>
        <RegExpr attribute="Normal Text" context="#stay" String="\s*[)]\s*/" />
        <RegExpr attribute="Function" context="sub_name_def" String="\w+::" />
        <RegExpr attribute="Normal Text" context="#stay" String="\w+[=]" />

        <RegExpr attribute="Operator" context="find_quoted" String="\bq(?=[qwx]?\s*[^\w\s])" />
        <RegExpr attribute="Operator" context="find_subst" String="\bs(?=\s*[^\w\s\]})])" />
        <RegExpr attribute="Operator" context="tr" String="\b(?:tr|y)\s*(?=[^\w\s\]})])" />

        <RegExpr attribute="Operator" context="find_pattern" String="\b(?:m|qr)(?=\s*[^\w\s\]})])" />

        <RegExpr attribute="Normal Text" context="#stay" String="[\w_]+\s*/" />
        <RegExpr attribute="Normal Text" context="#stay" String="[&lt;&gt;&quot;':]/" />
        <DetectChar attribute="Operator" context="pattern_slash" char="/" beginRegion="Pattern" />
        <RegExpr attribute="Operator" context="#stay" String="-[rwxoRWXOeszfdlpSbctugkTBMAC]" />

        <DetectChar attribute="Normal Text" context="#stay" char="{" beginRegion="Block" />
        <DetectChar attribute="Normal Text" context="#stay" char="}" endRegion="Block" />
      </context>

      <!-- ====== quoted construct central ===== -->
      <context name="find_quoted" attribute="Normal Text" lineEndContext="#stay" >
        <!-- NOTE - qx'not interpolated regex' does not cover newline between "qr" and "'" -->
        <RegExpr attribute="Operator" context="string_6" String="x\s*(')" beginRegion="String" />
        <AnyChar attribute="Operator" context="find_qqx" String="qx" />
        <DetectChar attribute="Operator" context="find_qw" char="w" />
        <DetectChar attribute="Operator" context="string_2" char="(" beginRegion="String" />
        <DetectChar attribute="Operator" context="string_3" char="{" beginRegion="String" />
        <DetectChar attribute="Operator" context="string_4" char="[" beginRegion="String" />
        <DetectChar attribute="Operator" context="string_5" char="&lt;" beginRegion="String" />
        <RegExpr attribute="Operator" context="string_6" String="([^a-zA-Z0-9_\s[\]{}()])" beginRegion="String" />
        <RegExpr attribute="Comment" context="#stay" String="\s+#.*" /><!-- q[qwx] # == comment, look for the delim on the next line -->
      </context>
      <context name="find_qqx" attribute="Normal Text" lineEndContext="#stay" >
        <DetectChar attribute="Operator" context="ip_string_2" char="(" beginRegion="String" />
        <DetectChar attribute="Operator" context="ip_string_3" char="{" beginRegion="String" />
        <DetectChar attribute="Operator" context="ip_string_4" char="[" beginRegion="String" />
        <DetectChar attribute="Operator" context="ip_string_5" char="&lt;" beginRegion="String" />
        <RegExpr attribute="Operator" context="ip_string_6" String="([^a-zA-Z0-9_\s[\]{}()])" beginRegion="String" />
        <RegExpr attribute="Comment" context="#stay" String="\s+#.*" /><!-- q[qwx] # == comment, look for the delim on the next line -->
      </context>
      <context name="find_qw" attribute="Normal Text" lineEndContext="#stay" >
        <DetectChar attribute="Operator" context="quote_word_paren" char="(" beginRegion="Wordlist" />
        <DetectChar attribute="Operator" context="quote_word_brace" char="{" beginRegion="Wordlist" />
        <DetectChar attribute="Operator" context="quote_word_bracket" char="[" beginRegion="Wordlist" />
        <RegExpr attribute="Operator" context="quote_word" String="([^a-zA-Z0-9_\s[\]{}()])" beginRegion="Wordlist" />
        <RegExpr attribute="Comment" context="#stay" String="\s+#.*" /><!-- q[qwx] # == comment, look for the delim on the next line -->
      </context>

      <!-- ====== Contexts for strings ===== -->
      <context name="ipstring_internal" attribute="String (interpolated)" lineEndContext="#stay">
        <DetectIdentifier />
        <RegExpr attribute="String Special Character" context="#stay" String="\\[UuLlEtnaefr]" />
        <RegExpr attribute="String (interpolated)" context="#stay" String="\\." />
        <RegExpr attribute="Normal Text" context="find_variable_unsafe" String="(?:[\$@]\S|%[\w{])" lookAhead="true" />
      </context>
      <context name="ip_string" attribute="String (interpolated)" lineEndContext="#stay">
        <DetectChar attribute="Operator" context="#pop" char="&quot;" endRegion="String"/>
        <IncludeRules context="ipstring_internal" />
      </context>
      <context name="ip_string_2" attribute="String (interpolated)" lineEndContext="#stay">
        <RangeDetect attribute="String (interpolated)" context="#stay" char="(" char1=")" />
        <DetectChar attribute="Operator" context="#pop#pop#pop" char=")" endRegion="String" />
        <IncludeRules context="ipstring_internal" />
      </context>
      <context name="ip_string_3" attribute="String (interpolated)" lineEndContext="#stay">
        <RangeDetect attribute="String (interpolated)" context="#stay" char="{" char1="}" />
        <DetectChar attribute="Operator" context="#pop#pop#pop" char="}" endRegion="String" />
        <IncludeRules context="ipstring_internal" />
      </context>
      <context name="ip_string_4" attribute="String (interpolated)" lineEndContext="#stay">
        <RangeDetect attribute="String (interpolated)" context="#stay" char="[" char1="]" />
        <DetectChar attribute="Operator" context="#pop#pop#pop" char="]" endRegion="String" />
        <IncludeRules context="ipstring_internal" />
      </context>
      <context name="ip_string_5" attribute="String (interpolated)" lineEndContext="#stay">
        <RangeDetect attribute="String (interpolated)" context="#stay" char="&lt;" char1="&gt;" />
        <DetectChar attribute="Operator" context="#pop#pop#pop" char="&gt;" endRegion="String" />
        <IncludeRules context="ipstring_internal" />
      </context>
      <context name="ip_string_6" attribute="String (interpolated)" lineEndContext="#stay" dynamic="true">
        <RegExpr attribute="String (interpolated)" context="#stay" String="\%1" dynamic="true" />
        <DetectChar attribute="Operator" context="#pop#pop#pop" char="1" dynamic="true"  endRegion="String"/>
        <IncludeRules context="ipstring_internal" />
      </context>

      <context name="string" attribute="String" lineEndContext="#stay">
        <DetectIdentifier />
        <Detect2Chars attribute="String Special Character" context="#stay" char="\" char1="'" />
        <Detect2Chars attribute="String Special Character" context="#stay" char="\" char1="\" />
        <DetectChar attribute="Operator" context="#pop" char="'" endRegion="String" />
      </context>
      <context name="string_2" attribute="String" lineEndContext="#stay">
        <DetectIdentifier />
        <Detect2Chars attribute="String Special Character" context="#stay" char="\" char1=")" />
        <Detect2Chars attribute="String Special Character" context="#stay" char="\" char1="\" />
        <RangeDetect attribute="String" context="#stay" char="(" char1=")" />
        <DetectChar attribute="Operator" context="#pop#pop" char=")" endRegion="String" />
      </context>
      <context name="string_3" attribute="String" lineEndContext="#stay">
        <DetectIdentifier />
        <Detect2Chars attribute="String Special Character" context="#stay" char="\" char1="}" />
        <Detect2Chars attribute="String Special Character" context="#stay" char="\" char1="\" />
        <RangeDetect attribute="String" context="#stay" char="{" char1="}" />
        <DetectChar attribute="Operator" context="#pop#pop" char="}" endRegion="String" />
      </context>
      <context name="string_4" attribute="String" lineEndContext="#stay">
        <DetectIdentifier />
        <Detect2Chars attribute="String Special Character" context="#stay" char="\" char1="]" />
        <Detect2Chars attribute="String Special Character" context="#stay" char="\" char1="\" />
        <RangeDetect attribute="String" context="#stay" char="[" char1="]" />
        <DetectChar attribute="Operator" context="#pop#pop" char="]" endRegion="String" />
      </context>
      <context name="string_5" attribute="String" lineEndContext="#stay">
        <DetectIdentifier />
        <Detect2Chars attribute="String Special Character" context="#stay" char="\" char1="&lt;" />
        <Detect2Chars attribute="String Special Character" context="#stay" char="\" char1="\" />
        <Detect2Chars attribute="String" context="#stay" char="\" char1="&gt;" />
        <RangeDetect attribute="String" context="#stay" char="&lt;" char1="&gt;" />
        <DetectChar attribute="Operator" context="#pop#pop" char="&gt;" endRegion="String" />
      </context>
      <context name="string_6" attribute="String" lineEndContext="#stay" dynamic="true">
        <DetectIdentifier />
        <Detect2Chars attribute="String Special Character" context="#stay" char="\" char1="\" />
        <RegExpr attribute="String Special Character" context="#stay" String="\%1" dynamic="true"/>
        <DetectChar attribute="Operator" context="#pop#pop" char="1" dynamic="true" endRegion="String" />
      </context>

      <!-- ====== contexts for  s/// ====== -->
      <context name="find_subst" attribute="Normal Text" lineEndContext="#stay" >
        <RegExpr attribute="Comment" context="#stay" String="\s+#.*" /><!-- s # == comment, look for the delim on the next line -->
        <DetectChar attribute="Operator" context="subst_curlybrace_pattern" char="{" beginRegion="Pattern" />
        <DetectChar attribute="Operator" context="subst_paren_pattern" char="(" beginRegion="Pattern" />
        <DetectChar attribute="Operator" context="subst_bracket_pattern" char="[" beginRegion="Pattern" />
        <DetectChar attribute="Operator" context="subst_sq_pattern" char="'" beginRegion="Pattern" />
        <RegExpr attribute="Operator" context="subst_slash_pattern" String="([^\w\s[\]{}()])" beginRegion="Pattern" />
      </context>

      <!-- Fully parse s {} {}.
           This means that
           - comments are legal between PATTERN and REPLACEMENT
           - REPLACEMENT can contain resursive {} blocks -->
      <context name="subst_curlybrace_pattern" attribute="Pattern" lineEndContext="#stay">
        <RegExpr attribute="Comment" context="#stay" String="\s+#.*$" />
        <IncludeRules context="regex_pattern_internal_ip" />
        <DetectChar attribute="Operator" context="subst_curlybrace_middle" char="}" endRegion="Pattern" />
      </context>
      <context name="subst_curlybrace_middle" attribute="Normal Text" lineEndContext="#stay" >
        <RegExpr attribute="Comment" context="#stay" String="#.*$" />
        <DetectChar attribute="Operator" context="subst_curlybrace_replace" char="{" beginRegion="Replacement" />
      </context>
      <context name="subst_curlybrace_replace" attribute="String (interpolated)" lineEndContext="#stay">
        <IncludeRules context="ipstring_internal" />
        <DetectChar attribute="Normal Text" context="subst_curlybrace_replace_recursive" char="{" beginRegion="Block" />
        <RegExpr attribute="Operator" context="#pop#pop#pop#pop" String="\}[cegimosx]*" endRegion="Replacement" />
      </context>
      <context name="subst_curlybrace_replace_recursive" attribute="String (interpolated)" lineEndContext="#stay" >
        <DetectChar attribute="String (interpolated)" context="subst_curlybrace_replace_recursive" char="{" beginRegion="Block" />
        <DetectChar attribute="Normal Text" context="#pop" char="}" endRegion="Block" />
        <IncludeRules context="ipstring_internal" />
      </context>

      <context name="subst_paren_pattern" attribute="Pattern" lineEndContext="#stay">
        <RegExpr attribute="Comment" context="#stay" String="\s+#.*$" />
        <IncludeRules context="regex_pattern_internal_ip" />
        <DetectChar attribute="Operator" context="subst_paren_replace" char="}" endRegion="Pattern" />
      </context>
      <context name="subst_paren_replace" attribute="String (interpolated)" lineEndContext="#stay">
        <IncludeRules context="ipstring_internal" />
        <DetectChar attribute="Operator" context="#stay" char="(" beginRegion="Replacement" />
        <RegExpr attribute="Operator" context="#pop#pop#pop" String="\)[cegimosx]*" endRegion="Replacement" />
      </context>

      <context name="subst_bracket_pattern" attribute="Pattern" lineEndContext="#stay">
        <RegExpr attribute="Comment" context="#stay" String="\s+#.*$" />
        <IncludeRules context="regex_pattern_internal_ip" />
        <DetectChar attribute="Operator" context="subst_bracket_replace" char="]" endRegion="Pattern" />
      </context>
      <context name="subst_bracket_replace" attribute="String (interpolated)" lineEndContext="#stay">
        <IncludeRules context="ipstring_internal" />
        <DetectChar attribute="Operator" context="#stay" char="[" beginRegion="Replacement" />
        <RegExpr attribute="Operator" context="#pop#pop#pop" String="\][cegimosx]*" endRegion="Replacement" />
      </context>

      <context name="subst_slash_pattern" attribute="Pattern" lineEndContext="#stay" dynamic="true">
        <RegExpr attribute="Pattern Internal Operator" context="#stay" String="\$(?=%1)" dynamic="true" />
        <RegExpr attribute="Operator" context="subst_slash_replace" String="(%1)" dynamic="true" endRegion="Pattern" beginRegion="Replacement" />
        <IncludeRules context="regex_pattern_internal_ip" />
      </context>
      <context name="subst_slash_replace" attribute="String (interpolated)" lineEndContext="#stay" dynamic="true">
        <RegExpr attribute="Operator" context="#pop#pop#pop" String="%1[cegimosx]*" dynamic="true" endRegion="Replacement" />
        <IncludeRules context="ipstring_internal" />

      </context>

      <context name="subst_sq_pattern" attribute="Pattern" lineEndContext="#stay">
        <RegExpr attribute="Comment" context="#stay" String="\s+#.*$" />
        <IncludeRules context="regex_pattern_internal" />
        <DetectChar attribute="Operator" context="subst_sq_replace" char="'" endRegion="Pattern" beginRegion="Pattern" />
      </context>
      <context name="subst_sq_replace" attribute="String" lineEndContext="#stay">
        <RegExpr attribute="Operator" context="#pop#pop#pop" String="'[cegimosx]*" endRegion="Replacement" />
      </context>

      <context name="tr" attribute="Pattern" lineEndContext="#pop" fallthrough="true" fallthroughContext="#pop" >
        <RegExpr attribute="Pattern" context="#pop" String="([^)]*\)\s*\(?:[^)]*\)" />
        <RegExpr attribute="Pattern" context="#pop" String="{[^}]*\}\s*\{[^}]*\}" />
        <RegExpr attribute="Pattern" context="#pop" String="\[[^}]*\]\s*\[[^\]]*\]" />
        <RegExpr attribute="Pattern" context="#pop" String="([^a-zA-Z0-9_\s[\]{}()]).*\1.*\1" minimal="true"/>
      </context>

      <!-- ====== PATTERNs ====== -->
      <context name="find_pattern" attribute="Pattern" lineEndContext="#stay">
        <RegExpr attribute="Comment" context="#stay" String="\s+#.*" /><!-- s # == comment, look for the delim on the next line -->
        <DetectChar attribute="Operator" context="pattern_brace" char="{" beginRegion="Pattern" />
        <DetectChar attribute="Operator" context="pattern_paren" char="(" beginRegion="Pattern" />
        <DetectChar attribute="Operator" context="pattern_bracket" char="[" beginRegion="Pattern" />
        <DetectChar attribute="Operator" context="pattern_sq" char="'" beginRegion="Pattern" />
        <RegExpr attribute="Operator" context="pattern" String="([^\w\s])" beginRegion="Pattern" />
      </context>
      <context name="pattern_slash" attribute="Pattern" lineEndContext="#stay">
        <RegExpr attribute="Pattern Internal Operator" context="#stay" String="\$(?=/)" />
        <IncludeRules context="regex_pattern_internal_ip" />
        <RegExpr attribute="Operator" context="#pop" String="/[cgimosx]*" endRegion="Pattern" />
      </context>
      <context name="pattern" attribute="Pattern" lineEndContext="#stay" dynamic="true">
        <RegExpr attribute="Pattern Internal Operator" context="#stay" String="\$(?=%1)" dynamic="true" />
        <RegExpr attribute="Operator" context="#pop#pop" String="%1[cgimosx]*" dynamic="true" endRegion="Pattern" />
        <IncludeRules context="regex_pattern_internal_ip" />
        <RegExpr attribute="Pattern Internal Operator" context="#stay" String="\$(?=\%1)" dynamic="true" />
      </context>
      <context name="pattern_brace" attribute="Pattern" lineEndContext="#stay">
        <RegExpr attribute="Operator" context="#pop#pop" String="\}[cgimosx]*" endRegion="Pattern" />
        <IncludeRules context="regex_pattern_internal_ip" />
      </context>
      <context name="pattern_bracket" attribute="Pattern" lineEndContext="#stay">
        <RegExpr attribute="Operator" context="#pop#pop" String="\][cgimosx]*" endRegion="Pattern" />
        <IncludeRules context="regex_pattern_internal_ip" />
      </context>
      <context name="pattern_paren" attribute="Pattern" lineEndContext="#stay">
        <RegExpr attribute="Operator" context="#pop#pop" String="\)[cgimosx]*" endRegion="Pattern" />
        <IncludeRules context="regex_pattern_internal_ip" />
      </context>
      <context name="pattern_sq" attribute="Pattern" lineEndContext="#stay">
        <RegExpr attribute="Operator" context="#pop#pop" String="'[cgimosx]*" endRegion="Pattern" />
        <IncludeRules context="regex_pattern_internal" />
      </context>

      <!-- rules internal stuff wrt regex patterns -->
      <context name="regex_pattern_internal_rules_1" lineEndContext="#stay">
        <RegExpr attribute="Comment" context="#stay" String="#.*$" firstNonSpace="true" />
        <RegExpr attribute="Pattern Character Class" context="#stay" String="\\[anDdSsWw]" />
        <RegExpr attribute="Pattern Internal Operator" context="#stay" String="\\[ABbEGLlNUuQdQZz]" />
        <RegExpr attribute="Special Variable" context="#stay" String="\\[\d]+" />
        <RegExpr attribute="Pattern" context="#stay" String="\\." />
      </context>
      <context name="regex_pattern_internal_rules_2" lineEndContext="#stay">
        <Detect2Chars attribute="Pattern Internal Operator" context="pat_ext" char="(" char1="?" />
        <DetectChar attribute="Pattern Internal Operator" context="pat_char_class" char="[" />
        <RegExpr attribute="Pattern Internal Operator" context="#stay" String="[()?^*+|]" />
        <RegExpr attribute="Pattern Internal Operator" context="#stay" String="\{[\d, ]+\}" />
        <DetectChar attribute="Pattern Internal Operator" context="#stay" char="$" />
        <RegExpr attribute="Comment" context="#stay" String="\s{3,}#.*$" />
      </context>
      <context name="regex_pattern_internal" attribute="Pattern" lineEndContext="#stay">
        <IncludeRules context="regex_pattern_internal_rules_1" />
        <IncludeRules context="regex_pattern_internal_rules_2" />
      </context>
      <context name="regex_pattern_internal_ip" attribute="Pattern" lineEndContext="#stay" >
        <IncludeRules context="regex_pattern_internal_rules_1" />
        <!-- NOTE the below means that the special variables $' $], $} and $> are not supported
             within interpolated PATTERNs (apart from $(, $) and ${ and $| not supported by perl).
             This is because perl considers
             s{foo$} {bar} OK as well as s{foo$}} {bar}, and detecting that is a huge work overload
             for something that is unlikely to happen. -->
        <RegExpr attribute="Data Type" context="find_variable_unsafe" String="[$@][^]\s{}()|&gt;']" lookAhead="true" />
        <IncludeRules context="regex_pattern_internal_rules_2" />
      </context>
      <context name="pat_ext" attribute="Pattern Internal Operator" lineEndContext="#stay">
        <RegExpr attribute="Comment" context="#pop" String="\#[^)]*" />
        <RegExpr attribute="Pattern Internal Operator" context="#pop" String="[:=!&gt;&lt;]+" />
        <DetectChar attribute="Pattern Internal Operator" context="#pop" char=")" />
      </context>
      <context name="pat_char_class" attribute="Pattern Character Class" lineEndContext="#stay">
        <DetectChar attribute="Pattern Internal Operator" context="#stay" char="^" />
        <Detect2Chars attribute="Pattern Character Class" context="#stay" char="\" char1="\" />
        <Detect2Chars attribute="Pattern Character Class" context="#stay" char="\" char1="]" />
        <RegExpr attribute="Pattern Character Class" context="#stay" String="\[:^?[a-z]+:\]" />
        <DetectChar attribute="Pattern Internal Operator" context="#pop" char="]" />
      </context>

      <!-- ====== Variables ====== -->
      <context name="find_variable" attribute="Data Type" lineEndContext="#pop" fallthrough="true" fallthroughContext="#pop" >
        <RegExpr attribute="Special Variable" context="var_detect" String="\$[0-9]+" />
        <RegExpr attribute="Special Variable" context="var_detect" String="[@\$](?:[\+\-_]\B|ARGV\b|INC\b)" />
        <RegExpr attribute="Special Variable" context="var_detect" String="[%\$](?:INC\b|ENV\b|SIG\b)" />
        <RegExpr attribute="Data Type" context="var_detect" String="\$\$[\$\w_]" />
        <RegExpr attribute="Data Type" context="var_detect" String="\$[#_][\w_]" />
        <RegExpr attribute="Data Type" context="var_detect" String="\$+::" />
        <RegExpr attribute="Special Variable" context="#stay" String="\$[^a-zA-Z0-9\s{][A-Z]?" />
        <RegExpr attribute="Data Type" context="var_detect" String="[\$@%]\{[\w_]+\}" />
        <AnyChar attribute="Data Type" context="var_detect" String="$@%" />
        <RegExpr attribute="Data Type" context="var_detect" String="\*[a-zA-Z_]+" />
        <RegExpr attribute="Special Variable" context="#stay" String="\*[^a-zA-Z0-9\s{][A-Z]?" />
        <!-- this should be a rare case! -->
        <AnyChar attribute="Operator" context="#pop" String="$@%*" />
      </context>
      <!-- This does not check fo a trailing slash, for usage in strings. -->
      <context name="find_variable_unsafe" attribute="Data Type" lineEndContext="#pop" fallthrough="true" fallthroughContext="#pop" >
        <RegExpr attribute="Special Variable" context="var_detect_unsafe" String="\$[0-9]+" />
        <RegExpr attribute="Special Variable" context="var_detect_unsafe" String="[@\$](?:[\+\-_]\B|ARGV\b|INC\b)" />
        <RegExpr attribute="Special Variable" context="var_detect_unsafe" String="[%\$](?:INC\b|ENV\b|SIG\b)" />
        <RegExpr attribute="Data Type" context="var_detect_unsafe" String="\$\$[\$\w_]" />
        <RegExpr attribute="Data Type" context="var_detect_unsafe" String="\$[#_][\w_]" />
        <RegExpr attribute="Data Type" context="var_detect_unsafe" String="\$+::" />
        <RegExpr attribute="Special Variable" context="#stay" String="\$[^a-zA-Z0-9\s{][A-Z]?" />
        <RegExpr attribute="Data Type" context="var_detect_unsafe" String="[\$@%]\{[\w_]+\}" />
        <RegExpr attribute="Data Type" context="var_detect_unsafe" String="[\$@%]" />
        <RegExpr attribute="Data Type" context="var_detect_unsafe" String="\*\w+" />
        <AnyChar attribute="Operator" context="#pop" String="$@%*" />
      </context>
      <context name="var_detect"  attribute="Data Type" lineEndContext="#pop#pop" fallthrough="true" fallthroughContext="#pop#pop">
        <IncludeRules context="var_detect_rules" />
        <IncludeRules context="slash_safe_escape" />
      </context>
      <context name="var_detect_unsafe"  attribute="Data Type" lineEndContext="#pop#pop" fallthrough="true" fallthroughContext="#pop#pop">
        <IncludeRules context="var_detect_rules" />
      </context>
      <context name="var_detect_rules" attribute="Data Type" lineEndContext="#pop#pop" >
        <RegExpr attribute="Data Type" context="#stay" String="[\w_]+" />
        <Detect2Chars attribute="Normal Text" context="#stay" char=":" char1=":" />
        <DetectChar attribute="Operator" context="#stay" char="'" />
        <Detect2Chars attribute="Normal Text" context="#stay" char="-" char1="&gt;" />
        <!-- safe with operator / -->
        <Detect2Chars attribute="Normal Text" context="#stay" char="+" char1="+" />
        <Detect2Chars attribute="Normal Text" context="#stay" char="-" char1="-" />
      </context>


      <!-- ====== Word lists ====== -->
      <context name="quote_word" attribute="Normal Text" lineEndContext="#stay" dynamic="true">
        <DetectSpaces />
        <DetectIdentifier />
        <RegExpr attribute="Normal Text" context="#stay" String="\\%1" dynamic="true" />
        <DetectChar attribute="Operator" context="#pop#pop#pop" char="1" dynamic="true" endRegion="Wordlist" />
      </context>
      <context name="quote_word_paren" attribute="Normal Text" lineEndContext="#stay">
        <DetectSpaces />
        <DetectIdentifier />
        <Detect2Chars attribute="Normal Text" context="#stay" char="\" char1=")" />
        <DetectChar attribute="Operator" context="#pop#pop#pop" char=")" endRegion="Wordlist" />
      </context>
      <context name="quote_word_brace" attribute="Normal Text" lineEndContext="#stay">
        <DetectSpaces />
        <DetectIdentifier />
        <Detect2Chars attribute="Normal Text" context="#stay" char="\" char1="}" />
        <DetectChar attribute="Operator" context="#pop#pop#pop" char="}" endRegion="Wordlist" />
      </context>
      <context name="quote_word_bracket" attribute="Normal Text" lineEndContext="#stay">
        <DetectSpaces />
        <DetectIdentifier />
        <Detect2Chars attribute="Normal Text" context="#stay" char="\" char1="]" />
        <DetectChar attribute="Operator" context="#pop#pop#pop" char="]" endRegion="Wordlist" />
      </context>

      <!-- ====== Here Documents ====== -->
      <context name="find_here_document" attribute="Normal Text" lineEndContext="#pop" >
        <RegExpr attribute="Keyword" context="here_document" String="(\w+)\s*;?" />
        <RegExpr attribute="Keyword" context="here_document" String="\s*&quot;([^&quot;]+)&quot;\s*;?" />
        <RegExpr attribute="Keyword" context="here_document" String="\s*`([^`]+)`\s*;?" />
        <RegExpr attribute="Keyword" context="here_document_dumb" String="\s*'([^']+)'\s*;?" />
      </context>
      <context name="here_document" attribute="String (interpolated)" lineEndContext="#stay" dynamic="true">
        <DetectSpaces />
        <RegExpr attribute="Keyword" context="#pop#pop" String="%1" column="0" dynamic="true" endRegion="HereDocument"/>
        <RegExpr attribute="Keyword" context="here_document" String="\=\s*&lt;&lt;\s*[&quot;']?([A-Z0-9_\-]+)[&quot;']?" beginRegion="HEREDoc" />
        <IncludeRules context="ipstring_internal" />
      </context>
      <context name="here_document_dumb" attribute="Normal Text" lineEndContext="#stay" dynamic="true">
        <DetectSpaces />
        <RegExpr attribute="Keyword" context="#pop#pop" String="%1" column="0" dynamic="true" endRegion="HereDocument"/>
        <DetectIdentifier />
      </context>

      <!-- ====== Misc ====== -->
      <context name="data_handle" attribute="Data" lineEndContext="#stay">
        <RegExpr attribute="Pod" context="pod" String="\=(?:head[1-6]|over|back|item|for|begin|end|pod)\s+.*" column="0" beginRegion="POD"/>
        <StringDetect attribute="Keyword" context="normal" String="__END__" firstNonSpace="true" />
      </context>
      <context name="end_handle" attribute="Nothing" lineEndContext="#stay">
        <RegExpr attribute="Pod" context="pod" String="^\=(?:head[1-6]|over|back|item|for|begin|end|pod)\s*.*"/>
        <StringDetect attribute="Keyword" context="data_handle" String="__DATA__" firstNonSpace="true" />
      </context>

      <context name="Backticked" attribute="String (interpolated)" lineEndContext="#stay">
        <IncludeRules context="ipstring_internal"/>
        <DetectChar attribute="Operator" context="#pop" char="`"/>
      </context>

      <context name="slash_safe_escape" attribute="Normal Text" lineEndContext="#pop" fallthrough="true" fallthroughContext="#pop">
        <RegExpr attribute="Normal Text" context="#pop" String="\s*\]?\s*/" />
        <RegExpr attribute="Normal Text" context="#pop" String="\s*\}?\s*/" endRegion="Block" />
        <RegExpr attribute="Normal Text" context="#pop" String="\s*\)?\s*/" />
        <keyword attribute="Keyword" context="#pop" String="keywords" />
      </context>

      <context name="package_qualified_blank" attribute="Normal Text" lineEndContext="#stay">
        <RegExpr attribute="Normal Text" context="#pop" String="[\w_]+" />
      </context>

      <context name="sub_name_def" attribute="Normal Text" lineEndContext="#pop" fallthrough="true" fallthroughContext="#pop">
        <RegExpr attribute="Function" context="#stay" String="\w+" />
        <RegExpr attribute="Normal Text" context="find_variable" String="\$\S" lookAhead="true" />
        <RegExpr attribute="Normal Text" context="sub_arg_definition" String="\s*\(" />
        <Detect2Chars attribute="Normal Text" context="#stay" char=":" char1=":" />
      </context>

      <context name="sub_arg_definition" attribute="Normal Text" lineEndContext="#stay" fallthrough="true" fallthroughContext="#pop#pop">
        <AnyChar attribute="Data Type" context="#stay" String="*$@%" />
        <AnyChar attribute="Normal Text" context="#stay" String="&amp;\[];" />
        <DetectChar attribute="Normal Text" context="slash_safe_escape" char=")" />
      </context>

      <context name="pod" attribute="Pod" lineEndContext="#stay">
        <DetectSpaces />
        <DetectIdentifier />
        <RegExpr attribute="Pod" context="#stay" String="\=(?:head[1-6]|over|back|item|for|begin|end|pod)\s*.*" column="0" beginRegion="POD" endRegion="POD"/>
        <RegExpr attribute="Pod" context="#pop" String="\=cut.*$" column="0" endRegion="POD"/>
      </context>

      <context name="comment" attribute="Comment" lineEndContext="#pop">
        <DetectSpaces />
        <IncludeRules context="##Alerts" />
        <DetectIdentifier />
      </context>

    </contexts>
    <itemDatas>
      <itemData name="Normal Text"               defStyleNum="dsNormal" />
      <itemData name="Keyword"                   defStyleNum="dsKeyword" />
      <itemData name="Pragma"                    defStyleNum="dsKeyword" />
      <itemData name="Function"                  defStyleNum="dsFunction" />
      <itemData name="Operator"                  defStyleNum="dsKeyword" color="#008000"/>
      <itemData name="Data Type"                 defStyleNum="dsDataType" />
      <itemData name="Special Variable"          defStyleNum="dsDataType" color="#C00000" selColor="#C00000" bold="0" italic="0" />
      <itemData name="Decimal"                   defStyleNum="dsDecVal" />
      <itemData name="Octal"                     defStyleNum="dsBaseN" />
      <itemData name="Hex"                       defStyleNum="dsBaseN" />
      <itemData name="Float"                     defStyleNum="dsFloat" />
      <itemData name="String"                    defStyleNum="dsString" color="#FF6C6C" selColor="#FF6C6C" bold="0" italic="0" />
      <itemData name="String (interpolated)"     defStyleNum="dsString" />
      <itemData name="String Special Character"  defStyleNum="dsChar" />
      <itemData name="Pattern"                   defStyleNum="dsOthers" />
      <itemData name="Pattern Internal Operator" defStyleNum="dsChar" />
      <itemData name="Pattern Character Class"   defStyleNum="dsBaseN" />
      <itemData name="Data"                      defStyleNum="dsNormal" />
      <itemData name="Comment"                   defStyleNum="dsComment" />
      <itemData name="Pod"                       defStyleNum="dsComment" />
      <itemData name="Nothing"                   defStyleNum="dsComment" />
    </itemDatas>
  </highlighting>
  <general>
    <comments>
      <comment name="singleLine" start="#" />
    </comments>
    <keywords casesensitive="1" />
  </general>
</language>
<!-- kate: space-indent on; indent-width 2; replace-tabs on; -->