tartrazine/lexers/ballerina.xml

<lexer>
  <config>
    <name>Ballerina</name>
    <alias>ballerina</alias>
    <filename>*.bal</filename>
    <mime_type>text/x-ballerina</mime_type>
    <dot_all>true</dot_all>
  </config>
  <rules>
    <state name="root">
      <rule pattern="[^\S\n]+">
        <token type="Text"/>
      </rule>
      <rule pattern="//.*?\n">
        <token type="CommentSingle"/>
      </rule>
      <rule pattern="/\*.*?\*/">
        <token type="CommentMultiline"/>
      </rule>
      <rule pattern="(break|catch|continue|done|else|finally|foreach|forever|fork|if|lock|match|return|throw|transaction|try|while)\b">
        <token type="Keyword"/>
      </rule>
      <rule pattern="((?:(?:[^\W\d]|\$)[\w.\[\]$&lt;&gt;]*\s+)+?)((?:[^\W\d]|\$)[\w$]*)(\s*)(\()">
        <bygroups>
          <usingself state="root"/>
          <token type="NameFunction"/>
          <token type="Text"/>
          <token type="Operator"/>
        </bygroups>
      </rule>
      <rule pattern="@[^\W\d][\w.]*">
        <token type="NameDecorator"/>
      </rule>
      <rule pattern="(annotation|bind|but|endpoint|error|function|object|private|public|returns|service|type|var|with|worker)\b">
        <token type="KeywordDeclaration"/>
      </rule>
      <rule pattern="(boolean|byte|decimal|float|int|json|map|nil|record|string|table|xml)\b">
        <token type="KeywordType"/>
      </rule>
      <rule pattern="(true|false|null)\b">
        <token type="KeywordConstant"/>
      </rule>
      <rule pattern="(import)(\s+)">
        <bygroups>
          <token type="KeywordNamespace"/>
          <token type="Text"/>
        </bygroups>
        <push state="import"/>
      </rule>
      <rule pattern="&#34;(\\\\|\\&#34;|[^&#34;])*&#34;">
        <token type="LiteralString"/>
      </rule>
      <rule pattern="&#39;\\.&#39;|&#39;[^\\]&#39;|&#39;\\u[0-9a-fA-F]{4}&#39;">
        <token type="LiteralStringChar"/>
      </rule>
      <rule pattern="(\.)((?:[^\W\d]|\$)[\w$]*)">
        <bygroups>
          <token type="Operator"/>
          <token type="NameAttribute"/>
        </bygroups>
      </rule>
      <rule pattern="^\s*([^\W\d]|\$)[\w$]*:">
        <token type="NameLabel"/>
      </rule>
      <rule pattern="([^\W\d]|\$)[\w$]*">
        <token type="Name"/>
      </rule>
      <rule pattern="([0-9][0-9_]*\.([0-9][0-9_]*)?|\.[0-9][0-9_]*)([eE][+\-]?[0-9][0-9_]*)?[fFdD]?|[0-9][eE][+\-]?[0-9][0-9_]*[fFdD]?|[0-9]([eE][+\-]?[0-9][0-9_]*)?[fFdD]|0[xX]([0-9a-fA-F][0-9a-fA-F_]*\.?|([0-9a-fA-F][0-9a-fA-F_]*)?\.[0-9a-fA-F][0-9a-fA-F_]*)[pP][+\-]?[0-9][0-9_]*[fFdD]?">
        <token type="LiteralNumberFloat"/>
      </rule>
      <rule pattern="0[xX][0-9a-fA-F][0-9a-fA-F_]*[lL]?">
        <token type="LiteralNumberHex"/>
      </rule>
      <rule pattern="0[bB][01][01_]*[lL]?">
        <token type="LiteralNumberBin"/>
      </rule>
      <rule pattern="0[0-7_]+[lL]?">
        <token type="LiteralNumberOct"/>
      </rule>
      <rule pattern="0|[1-9][0-9_]*[lL]?">
        <token type="LiteralNumberInteger"/>
      </rule>
      <rule pattern="[~^*!%&amp;\[\](){}&lt;&gt;|+=:;,./?-]">
        <token type="Operator"/>
      </rule>
      <rule pattern="\n">
        <token type="Text"/>
      </rule>
    </state>
    <state name="import">
      <rule pattern="[\w.]+">
        <token type="NameNamespace"/>
        <pop depth="1"/>
      </rule>
    </state>
  </rules>
</lexer>