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Ricky Stewart
765242ebd6
The license used to be LGPL so the code lived in other-licenses, but it was changed to BSD eleven years ago. Let's move it over to third_party/python/ply where it belongs.
./mach vendor python ply==3.10
`diff -r` between the original `ply` directory and the new one only comes up with the new file `third_party/python/ply/CHANGES` which isn't relevant to the functionality of the code, so this should be a no-op all told.
Differential Revision: https://phabricator.services.mozilla.com/D73341
40 lines
1.4 KiB
Plaintext
40 lines
1.4 KiB
Plaintext
January 31, 2017
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Announcing : PLY-3.10 (Python Lex-Yacc)
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http://www.dabeaz.com/ply
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I'm pleased to announce PLY-3.10--a pure Python implementation of the
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common parsing tools lex and yacc. PLY-3.10 is a minor bug fix
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release. It supports both Python 2 and Python 3.
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If you are new to PLY, here are a few highlights:
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- PLY is closely modeled after traditional lex/yacc. If you know how
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to use these or similar tools in other languages, you will find
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PLY to be comparable.
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- PLY provides very extensive error reporting and diagnostic
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information to assist in parser construction. The original
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implementation was developed for instructional purposes. As
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a result, the system tries to identify the most common types
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of errors made by novice users.
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- PLY provides full support for empty productions, error recovery,
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precedence rules, and ambiguous grammars.
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- Parsing is based on LR-parsing which is fast, memory efficient,
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better suited to large grammars, and which has a number of nice
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properties when dealing with syntax errors and other parsing
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problems. Currently, PLY can build its parsing tables using
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either SLR or LALR(1) algorithms.
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More information about PLY can be obtained on the PLY webpage at:
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http://www.dabeaz.com/ply
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PLY is freely available.
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Cheers,
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David Beazley (http://www.dabeaz.com) |