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333 Commits (f47da5c6828ac072646b89c99e6398006a434628)
 

Author SHA1 Message Date
David Majda f47da5c682 Fix a bug in param name fixup code for sequences 12 years ago
David Majda 4d5b1d58aa AST: Store rules in an array instead of an object 
This simplifies the code a bit and makes the AST more regular (each node
type has a fixed set of properties). The latter may get useful later
when generalizing visitors.
 12 years ago
David Majda bc5abfef5c Replace Jakefile with Makefile 
Doing scripting tasks in JavaScript is painful.
 12 years ago
David Majda ed45a1808e Fix |quote| visibility in generated parsers 
|quote| is used outside of the |parse| function so it must be defined in
more outer scope.

Fixes a problem (introduced in e9d8dc8eba)
where construction of some error messages could throw an error.
 12 years ago
David Majda a2af1fe612 Semantic predicates now have access to preceding labels 
Part of a fix for GH-69.
 12 years ago
David Majda 4cf50bcf9f Move param computations from the emitter into a separate pass 
This has two main benefits:

  1. The knowledge about scoping params in at one designated place,
     making all future adjustments in this area easier.

  2. Action-related code does not handle sequences specially anymore.
     Such knowledge/behavior doesn't belong there.
 12 years ago
David Majda efc38eef9b Consolidate all variable name computations into one compiler pass 
Before this change, knowledge about variable names was spread between
the |computeStackDepths| pass and the code emitter code. For example,
the fact that the |&...| expression needs one variable to store a
position was represented in both places.

This changes consolidates that knowledge and introduces a new
|computeVarNames| pass. This pass replaces old |computeStackDepths|
pass, does all computations realted to variable names and stores the
results in the AST. Note that some knowledge about variables
(inevitably) remained in emitter code templates.

Beside DRYing things up, this change simplifies the emitter
significantly. By storing variable names in the AST it also allows
introduction of a pass that will identify parameters passed to actions
using proper symbol tables. Right now, this is done in a hackish way
directly in the emitter, which won't work well with changes planned in
GH-69.
 12 years ago
David Majda 9d96e1e303 README.md: Update compatibility information 12 years ago
David Majda d002cd6ff6 Remove comment about IE in |quoteForRegexpClass| 
We escape null for general compatibility (see comment at the top of the
function), not only because of IE.
 12 years ago
David Majda a0898388fb /bin/pegjs: Avoid calling |process.openStdin| 
While |process.openStdin| is not officially deprecated, it's no longer
documented and just using |process.stdin| and resuming it seems to be
the official way.
 12 years ago
David Majda de256105eb /bin/pegjs: Don't close standard output 
Avoids "Error: process.stdout cannot be closed" error when invoked
without file arguments.
 12 years ago
David Majda 70e4166bb2 Fix typo in a comment in JavaScript example grammar 12 years ago
David Majda 46b2eaf3e3 Add |expected| and |found| properties to exceptions thrown by parsers 
Based on a patch by Marcin Stefaniuk (marcin@stefaniuk.info).
 12 years ago
David Majda e9d8dc8eba More responsibility for building an error message into |SyntaxError| 12 years ago
David Majda 21c6d9ccd3 Add |offset| property to exceptions thrown by parsers 
Based on a patch by Marcin Stefaniuk (marcin@stefaniuk.info).
 12 years ago
David Majda 8ae3eea7c4 Fix typo in JavaScript example grammar 
Fixes GH-62.
 12 years ago
David Majda 433c278e5d Merge pull request #59 from jasondavies/typo 
Fix typo in comment.
 12 years ago
David Majda 791c495aec Update embedded Codie to version 1.0.1 12 years ago
David Majda fb5028eb90 Use |util| module instead of |sys| 
|sys| emits a warning in Node.js 0.6.x.
 12 years ago
David Majda fa1523b651 Update version of Node.js and development dependencies in package.json 
The new versions are the ones I test with.
 12 years ago
Jason Davies d386d3a351 Fix typo in comment. 13 years ago
David Majda 47969a2f61 Replace |for| loop iterating over sequence elements with |each| 13 years ago
David Majda a19ea83ffa Replace |for| loop iterating over compiler passes with |each| 13 years ago
David Majda cd5490dee4 Make pass list customizable via |PEG.compiler.appliedPassNames| property 13 years ago
David Majda 8a0276ffb7 Unify checks and passes 
There is no real reason to have them separated.
 13 years ago
David Majda 6cd5bdc5e6 Passes now do not return anything (they always modify the AST in-place) 13 years ago
David Majda 3983f46d5d Rename |reportMissingReferencedRules| check to |reportMissingRules| 
The new name is shorter, there is no real loss of meaning.
 13 years ago
David Majda 64d26e5db2 Make names of compiler checks and passes verbs 13 years ago
David Majda 2a82d863e5 Regenerate src/parser.js (forgot to do it in previous commit) 13 years ago
David Majda 8acea01525 Fix reported error position when part of the input is not consumed 
Closes GH-48.
 13 years ago
David Majda c90e7f369b Fix regexp for detecting command-line options in /bin/pegjs 
Closes GH-51.
 13 years ago
David Majda 5013f79e8d Make "jake clean" and "jake distclean" check deleted directory existence 
Closes GH-52.
 13 years ago
David Majda 211a1116e4 Fix stack depth computations for empty sequences 
Part of a fix for GH-53.
 13 years ago
David Majda afdcb6fc4f Fix |posStackDepth| computation for rules 
Rules by themselves do not need any variable for storing position.

Part of a fix for GH-53.
 13 years ago
David Majda 756b6fc473 Fix |resultStackDepth| computation for sequences 
The |1 + ...| was wrong -- sequence does not need its own variable since
it reuses the one used by the first item.

Part of a fix for GH-53.
 13 years ago
David Majda 9c3da347cc Fix string parsing tests 
The tests were wrong because the |string| rule is not used to parse
literals but rule names.
 13 years ago
David Majda 3421bdb813 Test trailing characters for strings and literals at correct places 13 years ago
David Majda c639c1fc83 PEG.js grammar: Replace two instances of |string / ""| by |string?| 13 years ago
David Majda c04af99df8 Implament case-insensitive class matching 13 years ago
David Majda b540b2d460 Implement case-insensitive literal matching 13 years ago
David Majda 88c50a3e33 Add tests for zero- and one-char literals 
We optimize these cases in the emitter so we should better test them.
 13 years ago
David Majda 1c11e4aaa3 Split |literal| rule in the PEG.js grammar to |literal| and |string| 
This is just a formality now but it will make sense later when literals
(but not strings) will allow "i" flag for case-insensitive matching.
 13 years ago
David Majda 950cc80738 Few small README.md fixes 13 years ago
David Majda da12c2f5d4 Compile Codie templates only once 13 years ago
David Majda a5af9611a2 Introduce |context.delta| function to make creating contexts more DRY 13 years ago
David Majda be3b87ec71 Refactor "grammar" emitter function a bit 13 years ago
David Majda 2b09a7116d Refactor "rule" emitter function a bit 13 years ago
David Majda 131b6dd01f Refactor "sequence" emitter function a bit 13 years ago
David Majda f29ff236b8 Refactor "simple_and" emitter function a bit 13 years ago
David Majda 506d8107a1 Refactor "simple_not" emitter function a bit 13 years ago