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Diffstat (limited to 'python/helpers/pydev/third_party/pep8/lib2to3/lib2to3/PatternGrammar.txt')
-rw-r--r-- | python/helpers/pydev/third_party/pep8/lib2to3/lib2to3/PatternGrammar.txt | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/python/helpers/pydev/third_party/pep8/lib2to3/lib2to3/PatternGrammar.txt b/python/helpers/pydev/third_party/pep8/lib2to3/lib2to3/PatternGrammar.txt new file mode 100644 index 000000000000..36bf8148273b --- /dev/null +++ b/python/helpers/pydev/third_party/pep8/lib2to3/lib2to3/PatternGrammar.txt @@ -0,0 +1,28 @@ +# Copyright 2006 Google, Inc. All Rights Reserved. +# Licensed to PSF under a Contributor Agreement. + +# A grammar to describe tree matching patterns. +# Not shown here: +# - 'TOKEN' stands for any token (leaf node) +# - 'any' stands for any node (leaf or interior) +# With 'any' we can still specify the sub-structure. + +# The start symbol is 'Matcher'. + +Matcher: Alternatives ENDMARKER + +Alternatives: Alternative ('|' Alternative)* + +Alternative: (Unit | NegatedUnit)+ + +Unit: [NAME '='] ( STRING [Repeater] + | NAME [Details] [Repeater] + | '(' Alternatives ')' [Repeater] + | '[' Alternatives ']' + ) + +NegatedUnit: 'not' (STRING | NAME [Details] | '(' Alternatives ')') + +Repeater: '*' | '+' | '{' NUMBER [',' NUMBER] '}' + +Details: '<' Alternatives '>' |