tartrazine/lexers/bibtex.xml

<lexer>
  <config>
    <name>BibTeX</name>
    <alias>bib</alias>
    <alias>bibtex</alias>
    <filename>*.bib</filename>
    <mime_type>text/x-bibtex</mime_type>
    <case_insensitive>true</case_insensitive>
    <not_multiline>true</not_multiline>
  </config>
  <rules>
    <state name="closing-brace">
      <rule>
        <include state="whitespace"/>
      </rule>
      <rule pattern="[})]">
        <token type="Punctuation"/>
        <pop depth="1"/>
      </rule>
    </state>
    <state name="braced-string">
      <rule pattern="\{">
        <token type="LiteralString"/>
        <push/>
      </rule>
      <rule pattern="\}">
        <token type="LiteralString"/>
        <pop depth="1"/>
      </rule>
      <rule pattern="[^\{\}]+">
        <token type="LiteralString"/>
      </rule>
    </state>
    <state name="whitespace">
      <rule pattern="\s+">
        <token type="Text"/>
      </rule>
    </state>
    <state name="value">
      <rule>
        <include state="whitespace"/>
      </rule>
      <rule pattern="[a-z_@!$&amp;*+\-./:;&lt;&gt;?\[\\\]^`|~][\w@!$&amp;*+\-./:;&lt;&gt;?\[\\\]^`|~]*">
        <token type="NameVariable"/>
      </rule>
      <rule pattern="&#34;">
        <token type="LiteralString"/>
        <push state="quoted-string"/>
      </rule>
      <rule pattern="\{">
        <token type="LiteralString"/>
        <push state="braced-string"/>
      </rule>
      <rule pattern="[\d]+">
        <token type="LiteralNumber"/>
      </rule>
      <rule pattern="#">
        <token type="Punctuation"/>
      </rule>
      <rule>
        <pop depth="1"/>
      </rule>
    </state>
    <state name="quoted-string">
      <rule pattern="\{">
        <token type="LiteralString"/>
        <push state="braced-string"/>
      </rule>
      <rule pattern="&#34;">
        <token type="LiteralString"/>
        <pop depth="1"/>
      </rule>
      <rule pattern="[^\{\&#34;]+">
        <token type="LiteralString"/>
      </rule>
    </state>
    <state name="root">
      <rule>
        <include state="whitespace"/>
      </rule>
      <rule pattern="@comment">
        <token type="Comment"/>
      </rule>
      <rule pattern="@preamble">
        <token type="NameClass"/>
        <push state="closing-brace" state="value" state="opening-brace"/>
      </rule>
      <rule pattern="@string">
        <token type="NameClass"/>
        <push state="closing-brace" state="field" state="opening-brace"/>
      </rule>
      <rule pattern="@[a-z_@!$&amp;*+\-./:;&lt;&gt;?\[\\\]^`|~][\w@!$&amp;*+\-./:;&lt;&gt;?\[\\\]^`|~]*">
        <token type="NameClass"/>
        <push state="closing-brace" state="command-body" state="opening-brace"/>
      </rule>
      <rule pattern=".+">
        <token type="Comment"/>
      </rule>
    </state>
    <state name="command-body">
      <rule>
        <include state="whitespace"/>
      </rule>
      <rule pattern="[^\s\,\}]+">
        <token type="NameLabel"/>
        <push state="#pop" state="fields"/>
      </rule>
    </state>
    <state name="fields">
      <rule>
        <include state="whitespace"/>
      </rule>
      <rule pattern=",">
        <token type="Punctuation"/>
        <push state="field"/>
      </rule>
      <rule>
        <pop depth="1"/>
      </rule>
    </state>
    <state name="=">
      <rule>
        <include state="whitespace"/>
      </rule>
      <rule pattern="=">
        <token type="Punctuation"/>
        <pop depth="1"/>
      </rule>
    </state>
    <state name="field">
      <rule>
        <include state="whitespace"/>
      </rule>
      <rule pattern="[a-z_@!$&amp;*+\-./:;&lt;&gt;?\[\\\]^`|~][\w@!$&amp;*+\-./:;&lt;&gt;?\[\\\]^`|~]*">
        <token type="NameAttribute"/>
        <push state="value" state="="/>
      </rule>
      <rule>
        <pop depth="1"/>
      </rule>
    </state>
    <state name="opening-brace">
      <rule>
        <include state="whitespace"/>
      </rule>
      <rule pattern="[{(]">
        <token type="Punctuation"/>
        <pop depth="1"/>
      </rule>
    </state>
  </rules>
</lexer>