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Code Issues Releases Activity

Add an Alloy lexer (#892)

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Daniel 2023-11-25 13:52:31 -08:00 committed by GitHub
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4 changed files with 152 additions and 1 deletions
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2
README.md
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@ -38,7 +38,7 @@ translators for Pygments lexers and styles.
| Prefix | Language |
| :----: | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| A | ABAP, ABNF, ActionScript, ActionScript 3, Ada, Agda, AL, Angular2, ANTLR, ApacheConf, APL, AppleScript, ArangoDB AQL, Arduino, ArmAsm, AutoHotkey, AutoIt, Awk |
| A | ABAP, ABNF, ActionScript, ActionScript 3, Ada, Agda, AL, Alloy, Angular2, ANTLR, ApacheConf, APL, AppleScript, ArangoDB AQL, Arduino, ArmAsm, AutoHotkey, AutoIt, Awk |
| B | Ballerina, Bash, Bash Session, Batchfile, BibTeX, Bicep, BlitzBasic, BNF, BQN, Brainfuck |
| C | C, C#, C++, Caddyfile, Caddyfile Directives, Cap'n Proto, Cassandra CQL, Ceylon, CFEngine3, cfstatement, ChaiScript, Chapel, Cheetah, Clojure, CMake, COBOL, CoffeeScript, Common Lisp, Coq, Crystal, CSS, Cython |
| D | D, Dart, Dax, Diff, Django/Jinja, dns, Docker, DTD, Dylan |

58
lexers/embedded/alloy.xml Normal file
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@ -0,0 +1,58 @@
<lexer>
<config>
<name>Alloy</name>
<alias>alloy</alias>
<filename>*.als</filename>
<mime_type>text/x-alloy</mime_type>
<dot_all>true</dot_all>
</config>
<rules>
<state name="sig">
<rule pattern="(extends)\b"><token type="Keyword"/><pop depth="1"/></rule>
<rule pattern="[a-zA-Z_][\w]*&quot;*"><token type="Name"/></rule>
<rule pattern="[^\S\n]+"><token type="TextWhitespace"/></rule>
<rule pattern=","><token type="Punctuation"/></rule>
<rule pattern="\{"><token type="Operator"/><pop depth="1"/></rule>
</state>
<state name="module">
<rule pattern="[^\S\n]+"><token type="TextWhitespace"/></rule>
<rule pattern="[a-zA-Z_][\w]*&quot;*"><token type="Name"/><pop depth="1"/></rule>
</state>
<state name="fun">
<rule pattern="[^\S\n]+"><token type="TextWhitespace"/></rule>
<rule pattern="\{"><token type="Operator"/><pop depth="1"/></rule>
<rule pattern="[a-zA-Z_][\w]*&quot;*"><token type="Name"/><pop depth="1"/></rule>
</state>
<state name="fact">
<rule><include state="fun"/></rule>
<rule pattern="&quot;\b(\\\\|\\[^\\]|[^&quot;\\])*&quot;"><token type="LiteralString"/><pop depth="1"/></rule>
</state>
<state name="root">
<rule pattern="--.*?$"><token type="CommentSingle"/></rule>
<rule pattern="//.*?$"><token type="CommentSingle"/></rule>
<rule pattern="/\*.*?\*/"><token type="CommentMultiline"/></rule>
<rule pattern="[^\S\n]+"><token type="TextWhitespace"/></rule>
<rule pattern="(module|open)(\s+)"><bygroups><token type="KeywordNamespace"/><token type="TextWhitespace"/></bygroups><push state="module"/></rule>
<rule pattern="(sig|enum)(\s+)"><bygroups><token type="KeywordDeclaration"/><token type="TextWhitespace"/></bygroups><push state="sig"/></rule>
<rule pattern="(iden|univ|none)\b"><token type="KeywordConstant"/></rule>
<rule pattern="(int|Int)\b"><token type="KeywordType"/></rule>
<rule pattern="(var|this|abstract|extends|set|seq|one|lone|let)\b"><token type="Keyword"/></rule>
<rule pattern="(all|some|no|sum|disj|when|else)\b"><token type="Keyword"/></rule>
<rule pattern="(run|check|for|but|exactly|expect|as|steps)\b"><token type="Keyword"/></rule>
<rule pattern="(always|after|eventually|until|release)\b"><token type="Keyword"/></rule>
<rule pattern="(historically|before|once|since|triggered)\b"><token type="Keyword"/></rule>
<rule pattern="(and|or|implies|iff|in)\b"><token type="OperatorWord"/></rule>
<rule pattern="(fun|pred|assert)(\s+)"><bygroups><token type="Keyword"/><token type="TextWhitespace"/></bygroups><push state="fun"/></rule>
<rule pattern="(fact)(\s+)"><bygroups><token type="Keyword"/><token type="TextWhitespace"/></bygroups><push state="fact"/></rule>
<rule pattern="!|#|&amp;&amp;|\+\+|&lt;&lt;|&gt;&gt;|&gt;=|&lt;=&gt;|&lt;=|\.\.|\.|-&gt;"><token type="Operator"/></rule>
<rule pattern="[-+/*%=&lt;&gt;&amp;!^|~{}\[\]().\&#x27;;]"><token type="Operator"/></rule>
<rule pattern="[a-zA-Z_][\w]*&quot;*"><token type="Name"/></rule>
<rule pattern="[:,]"><token type="Punctuation"/></rule>
<rule pattern="[0-9]+"><token type="LiteralNumberInteger"/></rule>
<rule pattern="&quot;\b(\\\\|\\[^\\]|[^&quot;\\])*&quot;"><token type="LiteralString"/></rule>
<rule pattern="\n"><token type="TextWhitespace"/></rule>
</state>
</rules>
</lexer>

16
lexers/testdata/alloy.actual vendored Normal file
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@ -0,0 +1,16 @@
sig Node {
edges: set Node
}
fact "Connected graph" {
some n: Node | n.*edges = Node
}
fact "No self edges" {
no iden & edges
}
one sig Ball {
-- note the var
var loc: Node
}

77
lexers/testdata/alloy.expected vendored Normal file
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@ -0,0 +1,77 @@
[
{"type":"KeywordDeclaration","value":"sig"},
{"type":"TextWhitespace","value":" "},
{"type":"Name","value":"Node"},
{"type":"TextWhitespace","value":" "},
{"type":"Operator","value":"{"},
{"type":"TextWhitespace","value":"\n "},
{"type":"Name","value":"edges"},
{"type":"Punctuation","value":":"},
{"type":"TextWhitespace","value":" "},
{"type":"Keyword","value":"set"},
{"type":"TextWhitespace","value":" "},
{"type":"Name","value":"Node"},
{"type":"TextWhitespace","value":"\n"},
{"type":"Operator","value":"}"},
{"type":"TextWhitespace","value":"\n\n"},
{"type":"Keyword","value":"fact"},
{"type":"TextWhitespace","value":" "},
{"type":"LiteralString","value":"\"Connected graph\""},
{"type":"TextWhitespace","value":" "},
{"type":"Operator","value":"{"},
{"type":"TextWhitespace","value":"\n "},
{"type":"Keyword","value":"some"},
{"type":"TextWhitespace","value":" "},
{"type":"Name","value":"n"},
{"type":"Punctuation","value":":"},
{"type":"TextWhitespace","value":" "},
{"type":"Name","value":"Node"},
{"type":"TextWhitespace","value":" "},
{"type":"Operator","value":"|"},
{"type":"TextWhitespace","value":" "},
{"type":"Name","value":"n"},
{"type":"Operator","value":".*"},
{"type":"Name","value":"edges"},
{"type":"TextWhitespace","value":" "},
{"type":"Operator","value":"="},
{"type":"TextWhitespace","value":" "},
{"type":"Name","value":"Node"},
{"type":"TextWhitespace","value":"\n"},
{"type":"Operator","value":"}"},
{"type":"TextWhitespace","value":"\n\n"},
{"type":"Keyword","value":"fact"},
{"type":"TextWhitespace","value":" "},
{"type":"LiteralString","value":"\"No self edges\""},
{"type":"TextWhitespace","value":" "},
{"type":"Operator","value":"{"},
{"type":"TextWhitespace","value":"\n "},
{"type":"Keyword","value":"no"},
{"type":"TextWhitespace","value":" "},
{"type":"KeywordConstant","value":"iden"},
{"type":"TextWhitespace","value":" "},
{"type":"Operator","value":"\u0026"},
{"type":"TextWhitespace","value":" "},
{"type":"Name","value":"edges"},
{"type":"TextWhitespace","value":"\n"},
{"type":"Operator","value":"}"},
{"type":"TextWhitespace","value":"\n\n"},
{"type":"Keyword","value":"one"},
{"type":"TextWhitespace","value":" "},
{"type":"KeywordDeclaration","value":"sig"},
{"type":"TextWhitespace","value":" "},
{"type":"Name","value":"Ball"},
{"type":"TextWhitespace","value":" "},
{"type":"Operator","value":"{"},
{"type":"TextWhitespace","value":"\n "},
{"type":"CommentSingle","value":"-- note the var"},
{"type":"TextWhitespace","value":"\n "},
{"type":"Keyword","value":"var"},
{"type":"TextWhitespace","value":" "},
{"type":"Name","value":"loc"},
{"type":"Punctuation","value":":"},
{"type":"TextWhitespace","value":" "},
{"type":"Name","value":"Node"},
{"type":"TextWhitespace","value":"\n"},
{"type":"Operator","value":"}"},
{"type":"TextWhitespace","value":"\n"}
]