Rename Cretonne to Cranelift!

cranelift/docs/clif_lexer.py

@@ -0,0 +1,69 @@
+# -*- coding: utf-8 -*-
+#
+# Pygments lexer for Cranelift.
+from __future__ import absolute_import
+
+from pygments.lexer import RegexLexer, bygroups, words
+from pygments.token import Comment, String, Keyword, Whitespace, Number, Name
+from pygments.token import Operator, Punctuation, Text
+
+
+def keywords(*args):
+    return words(args, prefix=r'\b', suffix=r'\b')
+
+
+class CraneliftLexer(RegexLexer):
+    name = 'Cranelift'
+    aliases = ['clif']
+    filenames = ['*.clif']
+
+    tokens = {
+        'root': [
+            # Test header lines.
+            (r'^(test|isa|set)(?:( +)([-\w]+)' +
+             r'(?:(=)(?:(\d+)|(yes|no|true|false|on|off)|(\w+)))?)*' +
+             r'( *)$',
+                bygroups(Keyword.Namespace, Whitespace, Name.Attribute,
+                         Operator, Number.Integer, Keyword.Constant,
+                         Name.Constant, Whitespace)),
+            # Comments with filecheck or other test directive.
+            (r'(; *)([a-z]+:)(.*?)$',
+                bygroups(Comment.Single, Comment.Special, Comment.Single)),
+            # Plain comments.
+            (r';.*?$', Comment.Single),
+            # Strings are prefixed by % or # with hex.
+            (r'%\w+|#[0-9a-fA-F]*', String),
+            # Numbers.
+            (r'[-+]?0[xX][0-9a-fA-F_]+', Number.Hex),
+            (r'[-+]?0[xX][0-9a-fA-F_]*\.[0-9a-fA-F_]*([pP]\d+)?', Number.Hex),
+            (r'[-+]?([0-9_]+\.[0-9_]+([eE]\d+)?|s?NaN|Inf)', Number.Float),
+            (r'[-+]?[0-9_]+', Number.Integer),
+            # Known attributes.
+            (keywords('uext', 'sext'), Name.Attribute),
+            # Well known value types.
+            (r'\b(b\d+|i\d+|f32|f64)(x\d+)?\b', Keyword.Type),
+            # v<nn> = value
+            # ss<nn> = stack slot
+            # jt<nn> = jump table
+            (r'(v|ss|gv|jt|fn|sig|heap)\d+', Name.Variable),
+            # ebb<nn> = extended basic block
+            (r'(ebb)\d+', Name.Label),
+            # Match instruction names in context.
+            (r'(=)( *)([a-z]\w*)',
+                bygroups(Operator, Whitespace, Name.Function)),
+            (r'^( *)([a-z]\w*\b)(?! *[,=])',
+                bygroups(Whitespace, Name.Function)),
+            # Other names: results and arguments
+            (r'[a-z]\w*', Name),
+            (r'->|=|:', Operator),
+            (r'[{}(),.]', Punctuation),
+            (r'[ \t]+', Text),
+        ],
+    }
+
+
+def setup(app):
+    """Setup Sphinx extension."""
+    app.add_lexer('clif', CraneliftLexer())
+
+    return {'version': '0.1'}