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5 Commits (12c169e7b5b39e29aae9ae8f70e416403b61cc86)

Author SHA1 Message Date
Arlo Breault 12c169e7b5 Convert PEG.js code to strict mode 
* Issues #323
 9 years ago
David Majda eaca5f0acf Add location information to |GrammarError| 
This means all errors thrown by |PEG.buildParser| now have associated
location information.
 9 years ago
David Majda 6ce97457bf Fix left recursion detection 
So far, left recursion detector assumed that left recursion occurs only
when the recursive rule is at the very left-hand side of rule's
expression:

  start = start

This didn't catch cases like this:

  start = "a"? start

In general, if a rule reference can be reached without consuming any
input, it can lead to left recursion. This commit fixes the detector to
consider that.

Fixes #190.
 9 years ago
David Majda 850ddf5889 Specs cleanup: Simplify compiler passes specs 
After 898a7b5a2d the specs mostly tested
the visitor implementation, not actual code in the passes.
 10 years ago
David Majda 3d637173ee Specs cleanup: Split specs into unit and API specs 
Unit specs are unit tests of internal stuff. API specs are tests of the
user-visible APIs and behavior.

I think it makes sense to make this distinction because then the public
API line is more clearly visible e.g. when using the specs as
documentation.
 10 years ago