Viewing github.com/alecthomas/chroma/lexers/embedded/objective-c.xml

```
<lexer>
```
```
  <config>
```
```
    <name>Objective-C</name>
```
```
    <alias>objective-c</alias>
```
```
    <alias>objectivec</alias>
```
```
    <alias>obj-c</alias>
```
```
    <alias>objc</alias>
```
```
    <filename>*.m</filename>
```
```
    <filename>*.h</filename>
```

    <mime_type>text/x-objective-c</mime_type>

```
  </config>
```
```
  <rules>
```
```
    <state name="macro">
```

      <rule pattern="(include)(\s*(?:/[*].*?[*]/\s*)?)([^\n]+)">

```
        <bygroups>
```

          <token type="CommentPreproc"/>

```
          <token type="Text"/>
```

          <token type="CommentPreprocFile"/>

```
        </bygroups>
```
```
      </rule>
```
```
      <rule pattern="[^/\n]+">
```
```
        <token type="CommentPreproc"/>
```
```
      </rule>
```

      <rule pattern="/[*](.|\n)*?[*]/">

        <token type="CommentMultiline"/>

```
      </rule>
```
```
      <rule pattern="//.*?\n">
```
```
        <token type="CommentSingle"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
      <rule pattern="/">
```
```
        <token type="CommentPreproc"/>
```
```
      </rule>
```
```
      <rule pattern="(?&lt;=\\)\n">
```
```
        <token type="CommentPreproc"/>
```
```
      </rule>
```
```
      <rule pattern="\n">
```
```
        <token type="CommentPreproc"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="literal_number">
```
```
      <rule pattern="\(">
```
```
        <token type="Punctuation"/>
```

        <push state="literal_number_inner"/>

```
      </rule>
```
```
      <rule pattern="\)">
```
```
        <token type="Literal"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
      <rule>
```
```
        <include state="statement"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="if0">
```

      <rule pattern="^\s*#if.*?(?&lt;!\\)\n">

```
        <token type="CommentPreproc"/>
```
```
        <push/>
```
```
      </rule>
```

      <rule pattern="^\s*#el(?:se|if).*\n">

```
        <token type="CommentPreproc"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```

      <rule pattern="^\s*#endif.*?(?&lt;!\\)\n">

```
        <token type="CommentPreproc"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
      <rule pattern=".*?\n">
```
```
        <token type="Comment"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="root">
```

      <rule pattern="^([-+])(\s*)(\(.*?\))?(\s*)([a-zA-Z$_][\w$]*:?)">

```
        <bygroups>
```
```
          <token type="Punctuation"/>
```
```
          <token type="Text"/>
```
```
          <usingself state="root"/>
```
```
          <token type="Text"/>
```
```
          <token type="NameFunction"/>
```
```
        </bygroups>
```
```
        <push state="method"/>
```
```
      </rule>
```
```
      <rule>
```
```
        <include state="whitespace"/>
```
```
      </rule>
```

      <rule pattern="((?:[\w*\s])+?(?:\s|[*]))([a-zA-Z_]\w*)(\s*\([^;]*?\))([^;{]*)(\{)">

```
        <bygroups>
```
```
          <usingself state="root"/>
```
```
          <token type="NameFunction"/>
```
```
          <usingself state="root"/>
```
```
          <usingself state="root"/>
```
```
          <token type="Punctuation"/>
```
```
        </bygroups>
```
```
        <push state="function"/>
```
```
      </rule>
```

      <rule pattern="((?:[\w*\s])+?(?:\s|[*]))([a-zA-Z_]\w*)(\s*\([^;]*?\))([^;]*)(;)">

```
        <bygroups>
```
```
          <usingself state="root"/>
```
```
          <token type="NameFunction"/>
```
```
          <usingself state="root"/>
```
```
          <usingself state="root"/>
```
```
          <token type="Punctuation"/>
```
```
        </bygroups>
```
```
      </rule>
```
```
      <rule>
```
```
        <push state="statement"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="statements">
```
```
      <rule pattern="@&#34;">
```
```
        <token type="LiteralString"/>
```
```
        <push state="string"/>
```
```
      </rule>
```
```
      <rule pattern="@(YES|NO)">
```
```
        <token type="LiteralNumber"/>
```
```
      </rule>
```

      <rule pattern="@&#39;(\\.|\\[0-7]{1,3}|\\x[a-fA-F0-9]{1,2}|[^\\\&#39;\n])&#39;">

        <token type="LiteralStringChar"/>

```
      </rule>
```

      <rule pattern="@(\d+\.\d*|\.\d+|\d+)[eE][+-]?\d+[lL]?">

        <token type="LiteralNumberFloat"/>

```
      </rule>
```

      <rule pattern="@(\d+\.\d*|\.\d+|\d+[fF])[fF]?">

        <token type="LiteralNumberFloat"/>

```
      </rule>
```

      <rule pattern="@0x[0-9a-fA-F]+[Ll]?">

        <token type="LiteralNumberHex"/>

```
      </rule>
```
```
      <rule pattern="@0[0-7]+[Ll]?">
```

        <token type="LiteralNumberOct"/>

```
      </rule>
```
```
      <rule pattern="@\d+[Ll]?">
```

        <token type="LiteralNumberInteger"/>

```
      </rule>
```
```
      <rule pattern="@\(">
```
```
        <token type="Literal"/>
```
```
        <push state="literal_number"/>
```
```
      </rule>
```
```
      <rule pattern="@\[">
```
```
        <token type="Literal"/>
```
```
        <push state="literal_array"/>
```
```
      </rule>
```
```
      <rule pattern="@\{">
```
```
        <token type="Literal"/>
```

        <push state="literal_dictionary"/>

```
      </rule>
```

      <rule pattern="(unsafe_unretained|__bridge_transfer|@autoreleasepool|__autoreleasing|@synchronized|@synthesize|@protected|@selector|@required|@optional|readwrite|@property|nonatomic|@finally|__bridge|@dynamic|__strong|readonly|@private|__block|@public|@encode|release|assign|retain|atomic|@throw|@catch|__weak|setter|getter|typeof|strong|inout|class|@try|@end|weak|copy|out|in)\b">

```
        <token type="Keyword"/>
```
```
      </rule>
```

      <rule pattern="(instancetype|IBOutlet|IBAction|unichar|Class|BOOL|IMP|SEL|id)\b">

```
        <token type="KeywordType"/>
```
```
      </rule>
```

      <rule pattern="@(true|false|YES|NO)\n">

```
        <token type="NameBuiltin"/>
```
```
      </rule>
```

      <rule pattern="(YES|NO|nil|self|super)\b">

```
        <token type="NameBuiltin"/>
```
```
      </rule>
```

      <rule pattern="(Boolean|UInt8|SInt8|UInt16|SInt16|UInt32|SInt32)\b">

```
        <token type="KeywordType"/>
```
```
      </rule>
```
```
      <rule pattern="(TRUE|FALSE)\b">
```
```
        <token type="NameBuiltin"/>
```
```
      </rule>
```

      <rule pattern="(@interface|@implementation)(\s+)">

```
        <bygroups>
```
```
          <token type="Keyword"/>
```
```
          <token type="Text"/>
```
```
        </bygroups>
```

        <push state="#pop" state="oc_classname"/>

```
      </rule>
```

      <rule pattern="(@class|@protocol)(\s+)">

```
        <bygroups>
```
```
          <token type="Keyword"/>
```
```
          <token type="Text"/>
```
```
        </bygroups>
```

        <push state="#pop" state="oc_forward_classname"/>

```
      </rule>
```
```
      <rule pattern="@">
```
```
        <token type="Punctuation"/>
```
```
      </rule>
```
```
      <rule pattern="(L?)(&#34;)">
```
```
        <bygroups>
```

          <token type="LiteralStringAffix"/>

          <token type="LiteralString"/>

```
        </bygroups>
```
```
        <push state="string"/>
```
```
      </rule>
```

      <rule pattern="(L?)(&#39;)(\\.|\\[0-7]{1,3}|\\x[a-fA-F0-9]{1,2}|[^\\\&#39;\n])(&#39;)">

```
        <bygroups>
```

          <token type="LiteralStringAffix"/>

          <token type="LiteralStringChar"/>

          <token type="LiteralStringChar"/>

          <token type="LiteralStringChar"/>

```
        </bygroups>
```
```
      </rule>
```

      <rule pattern="(\d+\.\d*|\.\d+|\d+)[eE][+-]?\d+[LlUu]*">

        <token type="LiteralNumberFloat"/>

```
      </rule>
```

      <rule pattern="(\d+\.\d*|\.\d+|\d+[fF])[fF]?">

        <token type="LiteralNumberFloat"/>

```
      </rule>
```

      <rule pattern="0x[0-9a-fA-F]+[LlUu]*">

        <token type="LiteralNumberHex"/>

```
      </rule>
```
```
      <rule pattern="0[0-7]+[LlUu]*">
```

        <token type="LiteralNumberOct"/>

```
      </rule>
```
```
      <rule pattern="\d+[LlUu]*">
```

        <token type="LiteralNumberInteger"/>

```
      </rule>
```
```
      <rule pattern="\*/">
```
```
        <token type="Error"/>
```
```
      </rule>
```

      <rule pattern="[~!%^&amp;*+=|?:&lt;&gt;/-]">

```
        <token type="Operator"/>
```
```
      </rule>
```
```
      <rule pattern="[()\[\],.]">
```
```
        <token type="Punctuation"/>
```
```
      </rule>
```

      <rule pattern="(restricted|volatile|continue|register|default|typedef|struct|extern|switch|sizeof|static|return|union|while|const|break|goto|enum|else|case|auto|for|asm|if|do)\b">

```
        <token type="Keyword"/>
```
```
      </rule>
```

      <rule pattern="(bool|int|long|float|short|double|char|unsigned|signed|void)\b">

```
        <token type="KeywordType"/>
```
```
      </rule>
```

      <rule pattern="(typename|__inline|restrict|_inline|thread|inline|naked)\b">

        <token type="KeywordReserved"/>

```
      </rule>
```

      <rule pattern="(__m(128i|128d|128|64))\b">

        <token type="KeywordReserved"/>

```
      </rule>
```

      <rule pattern="__(forceinline|identifier|unaligned|declspec|fastcall|finally|stdcall|wchar_t|assume|except|int32|cdecl|int16|leave|based|raise|int64|noop|int8|w64|try|asm)\b">

        <token type="KeywordReserved"/>

```
      </rule>
```

      <rule pattern="(true|false|NULL)\b">

```
        <token type="NameBuiltin"/>
```
```
      </rule>
```

      <rule pattern="([a-zA-Z_]\w*)(\s*)(:)(?!:)">

```
        <bygroups>
```
```
          <token type="NameLabel"/>
```
```
          <token type="Text"/>
```
```
          <token type="Punctuation"/>
```
```
        </bygroups>
```
```
      </rule>
```
```
      <rule pattern="[a-zA-Z_]\w*">
```
```
        <token type="Name"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="method">
```
```
      <rule>
```
```
        <include state="whitespace"/>
```
```
      </rule>
```
```
      <rule pattern=",">
```
```
        <token type="Punctuation"/>
```
```
      </rule>
```
```
      <rule pattern="\.\.\.">
```
```
        <token type="Punctuation"/>
```
```
      </rule>
```

      <rule pattern="(\(.*?\))(\s*)([a-zA-Z$_][\w$]*)">

```
        <bygroups>
```
```
          <usingself state="root"/>
```
```
          <token type="Text"/>
```
```
          <token type="NameVariable"/>
```
```
        </bygroups>
```
```
      </rule>
```

      <rule pattern="[a-zA-Z$_][\w$]*:">

```
        <token type="NameFunction"/>
```
```
      </rule>
```
```
      <rule pattern=";">
```
```
        <token type="Punctuation"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
      <rule pattern="\{">
```
```
        <token type="Punctuation"/>
```
```
        <push state="function"/>
```
```
      </rule>
```
```
      <rule>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="literal_array">
```
```
      <rule pattern="\[">
```
```
        <token type="Punctuation"/>
```

        <push state="literal_array_inner"/>

```
      </rule>
```
```
      <rule pattern="\]">
```
```
        <token type="Literal"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
      <rule>
```
```
        <include state="statement"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="oc_classname">
```

      <rule pattern="([a-zA-Z$_][\w$]*)(\s*:\s*)([a-zA-Z$_][\w$]*)?(\s*)(\{)">

```
        <bygroups>
```
```
          <token type="NameClass"/>
```
```
          <token type="Text"/>
```
```
          <token type="NameClass"/>
```
```
          <token type="Text"/>
```
```
          <token type="Punctuation"/>
```
```
        </bygroups>
```

        <push state="#pop" state="oc_ivars"/>

```
      </rule>
```

      <rule pattern="([a-zA-Z$_][\w$]*)(\s*:\s*)([a-zA-Z$_][\w$]*)?">

```
        <bygroups>
```
```
          <token type="NameClass"/>
```
```
          <token type="Text"/>
```
```
          <token type="NameClass"/>
```
```
        </bygroups>
```
```
        <pop depth="1"/>
```
```
      </rule>
```

      <rule pattern="([a-zA-Z$_][\w$]*)(\s*)(\([a-zA-Z$_][\w$]*\))(\s*)(\{)">

```
        <bygroups>
```
```
          <token type="NameClass"/>
```
```
          <token type="Text"/>
```
```
          <token type="NameLabel"/>
```
```
          <token type="Text"/>
```
```
          <token type="Punctuation"/>
```
```
        </bygroups>
```

        <push state="#pop" state="oc_ivars"/>

```
      </rule>
```

      <rule pattern="([a-zA-Z$_][\w$]*)(\s*)(\([a-zA-Z$_][\w$]*\))">

```
        <bygroups>
```
```
          <token type="NameClass"/>
```
```
          <token type="Text"/>
```
```
          <token type="NameLabel"/>
```
```
        </bygroups>
```
```
        <pop depth="1"/>
```
```
      </rule>
```

      <rule pattern="([a-zA-Z$_][\w$]*)(\s*)(\{)">

```
        <bygroups>
```
```
          <token type="NameClass"/>
```
```
          <token type="Text"/>
```
```
          <token type="Punctuation"/>
```
```
        </bygroups>
```

        <push state="#pop" state="oc_ivars"/>

```
      </rule>
```

      <rule pattern="([a-zA-Z$_][\w$]*)">

```
        <token type="NameClass"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="function">
```
```
      <rule>
```
```
        <include state="whitespace"/>
```
```
      </rule>
```
```
      <rule>
```
```
        <include state="statements"/>
```
```
      </rule>
```
```
      <rule pattern=";">
```
```
        <token type="Punctuation"/>
```
```
      </rule>
```
```
      <rule pattern="\{">
```
```
        <token type="Punctuation"/>
```
```
        <push/>
```
```
      </rule>
```
```
      <rule pattern="\}">
```
```
        <token type="Punctuation"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="whitespace">
```
```
      <rule pattern="^#if\s+0">
```
```
        <token type="CommentPreproc"/>
```
```
        <push state="if0"/>
```
```
      </rule>
```
```
      <rule pattern="^#">
```
```
        <token type="CommentPreproc"/>
```
```
        <push state="macro"/>
```
```
      </rule>
```

      <rule pattern="^(\s*(?:/[*].*?[*]/\s*)?)(#if\s+0)">

```
        <bygroups>
```
```
          <usingself state="root"/>
```

          <token type="CommentPreproc"/>

```
        </bygroups>
```
```
        <push state="if0"/>
```
```
      </rule>
```

      <rule pattern="^(\s*(?:/[*].*?[*]/\s*)?)(#)">

```
        <bygroups>
```
```
          <usingself state="root"/>
```

          <token type="CommentPreproc"/>

```
        </bygroups>
```
```
        <push state="macro"/>
```
```
      </rule>
```
```
      <rule pattern="\n">
```
```
        <token type="Text"/>
```
```
      </rule>
```
```
      <rule pattern="\s+">
```
```
        <token type="Text"/>
```
```
      </rule>
```
```
      <rule pattern="\\\n">
```
```
        <token type="Text"/>
```
```
      </rule>
```

      <rule pattern="//(\n|[\w\W]*?[^\\]\n)">

```
        <token type="CommentSingle"/>
```
```
      </rule>
```

      <rule pattern="/(\\\n)?[*][\w\W]*?[*](\\\n)?/">

        <token type="CommentMultiline"/>

```
      </rule>
```

      <rule pattern="/(\\\n)?[*][\w\W]*">

        <token type="CommentMultiline"/>

```
      </rule>
```
```
    </state>
```

    <state name="literal_number_inner">

```
      <rule pattern="\(">
```
```
        <token type="Punctuation"/>
```
```
        <push/>
```
```
      </rule>
```
```
      <rule pattern="\)">
```
```
        <token type="Punctuation"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
      <rule>
```
```
        <include state="statement"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="statement">
```
```
      <rule>
```
```
        <include state="whitespace"/>
```
```
      </rule>
```
```
      <rule>
```
```
        <include state="statements"/>
```
```
      </rule>
```
```
      <rule pattern="[{}]">
```
```
        <token type="Punctuation"/>
```
```
      </rule>
```
```
      <rule pattern=";">
```
```
        <token type="Punctuation"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
    </state>
```

    <state name="oc_forward_classname">

      <rule pattern="([a-zA-Z$_][\w$]*)(\s*,\s*)">

```
        <bygroups>
```
```
          <token type="NameClass"/>
```
```
          <token type="Text"/>
```
```
        </bygroups>
```

        <push state="oc_forward_classname"/>

```
      </rule>
```

      <rule pattern="([a-zA-Z$_][\w$]*)(\s*;?)">

```
        <bygroups>
```
```
          <token type="NameClass"/>
```
```
          <token type="Text"/>
```
```
        </bygroups>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="literal_array_inner">
```
```
      <rule pattern="\[">
```
```
        <token type="Punctuation"/>
```
```
        <push/>
```
```
      </rule>
```
```
      <rule pattern="\]">
```
```
        <token type="Punctuation"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
      <rule>
```
```
        <include state="statement"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="literal_dictionary">
```
```
      <rule pattern="\}">
```
```
        <token type="Literal"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
      <rule>
```
```
        <include state="statement"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="oc_ivars">
```
```
      <rule>
```
```
        <include state="whitespace"/>
```
```
      </rule>
```
```
      <rule>
```
```
        <include state="statements"/>
```
```
      </rule>
```
```
      <rule pattern=";">
```
```
        <token type="Punctuation"/>
```
```
      </rule>
```
```
      <rule pattern="\{">
```
```
        <token type="Punctuation"/>
```
```
        <push/>
```
```
      </rule>
```
```
      <rule pattern="\}">
```
```
        <token type="Punctuation"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="string">
```
```
      <rule pattern="&#34;">
```
```
        <token type="LiteralString"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```

      <rule pattern="\\([\\abfnrtv&#34;\&#39;]|x[a-fA-F0-9]{2,4}|u[a-fA-F0-9]{4}|U[a-fA-F0-9]{8}|[0-7]{1,3})">

        <token type="LiteralStringEscape"/>

```
      </rule>
```
```
      <rule pattern="[^\\&#34;\n]+">
```
```
        <token type="LiteralString"/>
```
```
      </rule>
```
```
      <rule pattern="\\\n">
```
```
        <token type="LiteralString"/>
```
```
      </rule>
```
```
      <rule pattern="\\">
```
```
        <token type="LiteralString"/>
```
```
      </rule>
```
```
    </state>
```
```
  </rules>
```
```
</lexer>
```