pegjs

History

David Majda a56d3ac94f Fix error messages in certain cases with trailing input In case the generated parser parsed successfully part of input and left some input unparsed (trailing input), the error message produced was sometimes wrong. The code worked correctly only if there were no match failures in the successfully parsed part (highly unlikely). This commit fixes things by explicitly triggering a match failure with the following expectation at the end of the successfully parsed part of the input: peg$fail({ type: "end", description: "end of input" }); This change also made it possible to simplify the \|buildMessage\| function, which can now ignore the case of no expectations. Fixes #119.		2013-12-08 14:50:22 +01:00
..
compiler/passes	Renumber bytecode instructions to make them sequential	2013-12-07 15:58:26 +01:00
vendor/jasmine	Upgrade jasmine and jasmine-node	2013-08-22 09:07:19 +02:00
generated-parser.spec.js	Fix error messages in certain cases with trailing input	2013-12-08 14:50:22 +01:00
helpers.js
index.html
parser.spec.js	Fix \|oneRuleGrammar\| invocation	2013-12-07 09:36:33 +01:00
README

README

PEG.js Spec Suite
=================

This is the PEG.js spec suite. It ensures PEG.js works correctly. All specs
should always pass on all supported platforms.

Running in a browser
--------------------

  1. Make sure you have Node.js and all the development dependencies specified
     in package.json installed.

  2. Run the following command in the PEG.js root directory (one level up from
     this one):

       make browser

  3. Start a web server and make it serve the PEG.js root directory.

  4. Point your browser to an URL corresponding to the index.html file.

  5. Watch the specs pass (or fail).

If you have Python installed, you can fulfill steps 3 and 4 by running the
following command in the PEG.js root directory

  python -m SimpleHTTPServer

and loading http://localhost:8000/spec/index.html in your browser.

Running from a command-line
---------------------------

  1. Make sure you have Node.js and all the development dependencies specified
     in package.json installed.

  2. Run the following command in the PEG.js root directory (one level up from
     this one):

       make spec

  3. Watch the specs pass (or fail).