<?xml version="1.0" encoding="UTF-8"?>
<!--

This file is part of GtkSourceView

Author: John Luke <jluke@cfl.rr.com>
Copyright (C) 2003 John Luke <jluke@cfl.rr.com>
Copyright (C) 2004 Jeroen Zwartepoorte <jeroen@xs4all.nl>
Copyright (C) 2004 Alessio Frusciante <algol@firenze.linux.it>
Copyright (C) 2005 Brion Vibber <brion@pobox.com>

GtkSourceView is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

GtkSourceView 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
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License
along with this library; if not, see <http://www.gnu.org/licenses/>.

-->
<language id="c-sharp" name="C#" version="2.0" _section="Source">
    <metadata>
        <property name="mimetypes">text/x-csharpsrc;text/x-csharp</property>
        <property name="globs">*.cs</property>
        <property name="line-comment-start">//</property>
        <property name="block-comment-start">/*</property>
        <property name="block-comment-end">*/</property>
        <property name="suggested-suffix">.cs</property>
    </metadata>

    <styles>
        <style id="comment"               name="Comment"               map-to="def:comment"/>
        <style id="error"                 name="Error"                 map-to="def:error"/>
        <style id="type"                  name="Data Type"             map-to="def:type"/>
        <style id="string"                name="String"                map-to="def:string"/>
        <style id="char"                  name="Character"             map-to="def:character"/>
        <style id="escaped-character"     name="Escaped Character"     map-to="def:special-char"/>
        <style id="format"                name="String Format"         map-to="def:special-char"/>
        <style id="keyword"               name="Keyword"               map-to="def:keyword"/>
        <style id="preprocessor"          name="Preprocessor"          map-to="def:preprocessor"/>
        <style id="null-value"            name="Null Value"            map-to="def:special-constant"/>
        <style id="boolean"               name="Boolean value"         map-to="def:boolean"/>
        <style id="decimal"               name="Decimal number"        map-to="def:decimal"/>
        <style id="hexadecimal"           name="Hexadecimal number"    map-to="def:base-n-integer"/>
        <style id="real"                  name="Real number"           map-to="def:floating-point"/>
        <style id="method-calls"          name="Method Calls"          map-to="def:method-calls"/>

    </styles>

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        <context id="method-calls" style-ref="method-calls">
            <match extended="true">
                (\.[\s\n\r]*[\w]+)[\s\n\r]*(?=\(.*\))
            </match>
        </context>

        <context id="line-comment" style-ref="comment" end-at-line-end="true" class="comment" class-disabled="no-spell-check">
            <start>//</start>
            <include>
                <context ref="def:in-line-comment"/>
            </include>
        </context>

        <context id="multiline-comment" style-ref="comment" class="comment" class-disabled="no-spell-check">
            <start>/\*</start>
            <end>\*/</end>
            <include>
                <context ref="def:in-comment"/>
            </include>
        </context>

        <context id="close-comment-outside-comment" style-ref="error">
            <match>\*/(?!\*)</match>
        </context>

        <define-regex id="preproc-start">^\s*#\s*</define-regex>

        <context id="if-false-comment" style-ref="comment">
            <start>\%{preproc-start}if\s*false\b</start>
            <end>\%{preproc-start}(endif|else|elif)\b</end>
            <include>
                <context id="if-in-if-false">
                    <start>\%{preproc-start}if(n?def)?\b</start>
                    <end>\%{preproc-start}endif\b</end>
                    <include>
                        <context ref="if-in-if-false"/>
                        <context ref="def:in-comment"/>
                    </include>
                </context>
                <context ref="def:in-comment"/>
            </include>
        </context>

        <context id="preprocessor" style-ref="preprocessor" end-at-line-end="true">
            <start extended="true">
                \%{preproc-start}
                (define|undef|if(n?def)?|else|elif|endif|line|error|warning|region|endregion)
                \b
            </start>
            <include>
                <context ref="line-comment"/>
                <context ref="multiline-comment"/>
            </include>
        </context>

        <context id="multiline-string" style-ref="string" class="string" class-disabled="no-spell-check">
            <start>@"</start>
            <end>"</end>
        </context>

        <context id="keywords" style-ref="keyword">
            <keyword>async</keyword>
            <keyword>await</keyword>
            <keyword>class</keyword>
            <keyword>delegate</keyword>
            <keyword>enum</keyword>
            <keyword>event</keyword>
            <keyword>interface</keyword>
            <keyword>namespace</keyword>
            <keyword>struct</keyword>
            <keyword>using</keyword>
            <keyword>abstract</keyword>
            <keyword>const</keyword>
            <keyword>explicit</keyword>
            <keyword>extern</keyword>
            <keyword>fixed</keyword>
            <keyword>implicit</keyword>
            <keyword>internal</keyword>
            <keyword>lock</keyword>
            <keyword>out</keyword>
            <keyword>override</keyword>
            <keyword>params</keyword>
            <keyword>partial</keyword>
            <keyword>private</keyword>
            <keyword>protected</keyword>
            <keyword>public</keyword>
            <keyword>record</keyword>
            <keyword>ref</keyword>
            <keyword>sealed</keyword>
            <keyword>static</keyword>
            <keyword>readonly</keyword>
            <keyword>unsafe</keyword>
            <keyword>virtual</keyword>
            <keyword>volatile</keyword>
            <keyword>add</keyword>
            <keyword>as</keyword>
            <keyword>assembly</keyword>
            <keyword>base</keyword>
            <keyword>break</keyword>
            <keyword>case</keyword>
            <keyword>catch</keyword>
            <keyword>checked</keyword>
            <keyword>continue</keyword>
            <keyword>default</keyword>
            <keyword>do</keyword>
            <keyword>else</keyword>
            <keyword>finally</keyword>
            <keyword>for</keyword>
            <keyword>foreach</keyword>
            <keyword>get</keyword>
            <keyword>goto</keyword>
            <keyword>if</keyword>
            <keyword>in</keyword>
            <keyword>init</keyword>
            <keyword>is</keyword>
            <keyword>nameof</keyword>
            <keyword>new</keyword>
            <keyword>remove</keyword>
            <keyword>return</keyword>
            <keyword>set</keyword>
            <keyword>sizeof</keyword>
            <keyword>stackalloc</keyword>
            <keyword>super</keyword>
            <keyword>switch</keyword>
            <keyword>this</keyword>
            <keyword>throw</keyword>
            <keyword>try</keyword>
            <keyword>typeof</keyword>
            <keyword>unchecked</keyword>
            <keyword>value</keyword>
            <keyword>var</keyword>
            <keyword>void</keyword>
            <keyword>while</keyword>
            <keyword>yield</keyword>
        </context>

        <context id="primitives" style-ref="type">
            <keyword>bool</keyword>
            <keyword>byte</keyword>
            <keyword>char</keyword>
            <keyword>decimal</keyword>
            <keyword>double</keyword>
            <keyword>dynamic</keyword>
            <keyword>float</keyword>
            <keyword>int</keyword>
            <keyword>long</keyword>
            <keyword>object</keyword>
            <keyword>operator</keyword>
            <keyword>sbyte</keyword>
            <keyword>short</keyword>
            <keyword>string</keyword>
            <keyword>uint</keyword>
            <keyword>ulong</keyword>
            <keyword>ushort</keyword>
        </context>

        <context id="null-value" style-ref="null-value">
            <keyword>null</keyword>
        </context>

        <context id="boolean" style-ref="boolean">
            <keyword>false</keyword>
            <keyword>true</keyword>
        </context>

        <context id="decimal" style-ref="decimal">
            <match extended="true">
                (?&lt;![\w\.])
                [0-9]+[uUlL]*
                (?![\w\.])
            </match>
        </context>

        <context id="hexadecimal" style-ref="hexadecimal">
            <match extended="true">
                (?&lt;![\w\.])
                0[xX][a-fA-F0-9]+[uUlL]*
                (?![\w\.])
            </match>
        </context>

        <context id="real" style-ref="real">
            <match extended="true">
                (?&lt;![\w\.])
                ((\.[0-9]+|[0-9]+\.[0-9]*)([Ee][+-]?[0-9]*)?[FfDdMm]?|
                ([0-9]+[Ee][+-]?[0-9]*)[FfDdMm]? |
                ([0-9]+)[FfDdMm])
                (?![\w\.])
            </match>
        </context>

        <!-- FIXME Taken from C, is it right? -->
        <define-regex id="escaped-character" extended="true">
            \\(                   # leading backslash
            [\\\"\'nrbtfav\?] |   # escaped character
            [0-7]{1,3} |          # one, two, or three octal digits
            x[0-9A-Fa-f]+         # 'x' followed by hex digits
            )
        </define-regex>

        <context id="string" style-ref="string" end-at-line-end="true" class="string" class-disabled="no-spell-check">
            <start>"</start>
            <end>"</end>
            <include>
                <context id="csharp-format" style-ref="format">
                    <match>{[0-9][0-9:\#\%,./cdefgnrxtsuDTFGMY]*}</match>
                </context>
                <context id="escaped-character" style-ref="escaped-character">
                    <match>\%{escaped-character}</match>
                </context>
                <context ref="def:line-continue"/>
            </include>
        </context>

        <context id="char" style-ref="char">
            <!-- FIXME I don't know C# syntax -->
            <match>'(\%{escaped-character}|.)'</match>
        </context>

        <context id="c-sharp" class="no-spell-check">
            <include>
                <context ref="method-calls"/>
                <context ref="multiline-string"/>
                <context ref="string"/>
                <context ref="char"/>
                <context ref="line-comment"/>
                <context ref="multiline-comment"/>
                <context ref="close-comment-outside-comment"/>
                <context ref="if-false-comment"/>
                <context ref="preprocessor"/>
                <context ref="keywords"/>
                <context ref="primitives"/>
                <context ref="null-value"/>
                <context ref="boolean"/>
                <context ref="decimal"/>
                <context ref="hexadecimal"/>
                <context ref="real"/>
            </include>
        </context>
    </definitions>
</language>
