Commit Graph

673 Commits

Author SHA1 Message Date
Yorick Peterse b3ffc28cc7 Removed shift/reduce conflict in the xpath parser. 2014-06-17 20:09:44 +02:00
Yorick Peterse 497f57ccd2 Basic parser setup for XPath function calls. 2014-06-17 19:57:17 +02:00
Yorick Peterse 894de7f909 Lex all XPath expressions in a single machine.
This allows literal values such as strings and numbers to be used as function
arguments.
2014-06-17 19:56:57 +02:00
Yorick Peterse a222bccd43 Only run Travis on the master branch. 2014-06-17 19:32:02 +02:00
Yorick Peterse bb7af98257 Updated used ASTs for all XPath parser specs. 2014-06-17 18:51:33 +02:00
Yorick Peterse 2298ef618b Reworked handling of relative vs absolute XPaths. 2014-06-16 20:19:39 +02:00
Yorick Peterse a733869f53 Use (name) nodes for @foo axes. 2014-06-13 18:00:55 +02:00
Yorick Peterse ce23cce9bd Added XPath parser specs for all axes. 2014-06-13 16:20:53 +02:00
Yorick Peterse 3ff9057858 Renamed the XPath axes_spec file. 2014-06-13 09:32:46 +02:00
Yorick Peterse 99615d72f9 Simple benchmarks for the XPath lexer. 2014-06-13 00:49:24 +02:00
Yorick Peterse e75cd0ede8 Namespaced the profile directories. 2014-06-13 00:33:53 +02:00
Yorick Peterse 61d553be34 Namespaced benchmarks per parser category. 2014-06-13 00:25:39 +02:00
Yorick Peterse f557aaef76 Lexer specs for the various XPath axes. 2014-06-13 00:16:40 +02:00
Yorick Peterse eba2d9954d Support for parsing basic XPath expressions. 2014-06-12 00:20:46 +02:00
Yorick Peterse 70f3b7fa92 Lex XPath operators using individual tokens.
Instead of lexing every operator as T_OP they now use individual tokens such as
T_EQ and T_LT.
2014-06-09 23:35:54 +02:00
Yorick Peterse 7244e28eec Corrected docs of the xpath lexer. 2014-06-04 19:33:46 +02:00
Yorick Peterse 114bc0d6e8 Upgrade to RSpec 3.0.
For this I've enabled both the old expectation and stubbing/mocking syntax. The
old syntax is much more compact and to me reads nicer. For example, consider
the following:

    lex('<foo></foo>').should == [...]

To me this reads much nicer than this:

    expect(lex('<foo></foo>')).to eq([...])
2014-06-02 12:09:38 +02:00
Yorick Peterse 1d2f9e6db6 Added T_STAR as an XPath parser token. 2014-06-02 09:27:25 +02:00
Yorick Peterse e11b9ed32c Basic XPath parser setup. 2014-06-01 23:02:28 +02:00
Yorick Peterse 54de2df0c7 Support for lexing XPath wildcard expressions.
To support this we need to require whitespace around the "*" operator. This is
not ideal but it will do for now.
2014-06-01 23:01:24 +02:00
Yorick Peterse 48bf1a0628 Tweak Gemspec file list a bit.
This ensures it also takes files such as "Rakefile" into account when needed.
2014-06-01 22:16:55 +02:00
Yorick Peterse b7855c124f XPath lexer test for predicates using axes. 2014-06-01 19:49:37 +02:00
Yorick Peterse 88b06e247d Added a few more XPath lexer tests. 2014-06-01 19:43:36 +02:00
Yorick Peterse 8dd8d7a519 Basic working XPath lexer.
This doesn't lex everything of the XPath specification just yet and needs more
tests.
2014-06-01 19:24:35 +02:00
Yorick Peterse a50b76a2d8 Cleaned up XPath lexer boilerplate a bit. 2014-05-29 19:25:49 +02:00
Yorick Peterse e0b07332d9 Boilerplate for the XPath lexer. 2014-05-29 19:25:49 +02:00
Yorick Peterse be3f8fb494 Removed the on_newline XML lexer callback. 2014-05-29 14:21:48 +02:00
Yorick Peterse ead5c71fee Cleaned up the XML parser grammar.
This resolves all shift/reduce and reduce/reduce conflicts that were previously
present.
2014-05-29 01:37:19 +02:00
Yorick Peterse 49780e2b04 Fix for useless XML parser rules.
Something tells me that using : and | in your syntax might not be the best
decision.
2014-05-28 21:36:06 +02:00
Yorick Peterse 28edc7726f Rewind IO input upon resetting the lexer. 2014-05-26 00:33:20 +02:00
Yorick Peterse c81c6db74e Benchmarks/profilers for IO inputs in the lexer. 2014-05-26 00:31:15 +02:00
Yorick Peterse 629dcd3fe6 Support for IO inputs in the lexer.
Using IO/StringIO objects one can parse large XML files without first having to
read the entire file into memory. This can potentially save a lot of memory at
the cost of a slightly slower runtime.

For IO like instances the lexer will consume the input line by line. If a
String is given it's consumed as a whole instead. A small side effect of
reading the input line by line is that text such as "foo\nbar" will be lexed as
two tokens instead of one.

Fixes #19.
2014-05-26 00:30:39 +02:00
Yorick Peterse 6b9d65923a Use a method for getting input in the XML lexer.
Instead of directly accessing the `data` instance variable the C/Java code now
uses the method `read_data`. This is part of one of the various steps required
to allow Oga to read data from IO like instances. It also means I can freely
change the name of the instance variable without also having to change the
C/Java code.
2014-05-21 00:27:23 +02:00
Yorick Peterse 418b4ef498 Cleaned up documentation of the XML lexer. 2014-05-21 00:21:21 +02:00
Yorick Peterse 3a8582030d Removed remaining fhold call in the XML lexer.
There's no particular need any more for this fhold call so we're getting rid of
it.
2014-05-21 00:11:39 +02:00
Yorick Peterse 4542f06d0f Replaced fcall/fret with fnext in the XML lexer.
With the rules being cleaned up/moved around a bit we can drop the use of
fcall/fret. This saves the need of having to maintain a stack (position).
2014-05-21 00:08:48 +02:00
Yorick Peterse c56b0395e4 Moved various rules around for the XML lexer.
This moves the element related rules to the element_head machine (where they
belong). This in turn makes it possible to lex ">" as a text node, previously
this was impossible.
2014-05-21 00:04:53 +02:00
Yorick Peterse feaf28d423 Remove dedicated string machine in the XML lexer.
This removes the need for another fcall/fret combination.
2014-05-19 20:26:07 +02:00
Yorick Peterse 93b9718406 Cleaned up the XML lexer documentation. 2014-05-19 09:39:35 +02:00
Yorick Peterse cd0f3380c4 Merge multiple CDATA tokens into a single token.
The tokens T_CDATA_START, T_TEXT and T_CDATA_END have been merged together into
T_CDATA.
2014-05-19 09:36:19 +02:00
Yorick Peterse a4fb5c1299 Merge multiple comment tokens into a single one.
The tokens T_COMMENT_START, T_TEXT and T_COMMENT_END have been merged into a
single token: T_COMMENT. This simplifies both the lexer and the parser.
2014-05-19 09:30:30 +02:00
Yorick Peterse c891dd88cb Removed useless code from the XML parser. 2014-05-18 23:30:26 +02:00
Yorick Peterse 31ec76c90a Fixed guard in the lexer header. 2014-05-18 16:51:17 +02:00
Yorick Peterse 81a81f0ab0 Don't create Arrays when not needed. 2014-05-16 17:05:42 +02:00
Yorick Peterse 854936f30b Added average benchmarks for the parser. 2014-05-16 16:38:27 +02:00
Yorick Peterse ad67cd708f Only include debug info when DEBUG is set. 2014-05-15 20:43:48 +02:00
Yorick Peterse fd2f727183 Only set explicit ivars in the lexer. 2014-05-15 19:48:18 +02:00
Yorick Peterse 44bf1dd1ca Split up handling of element names/namespaces.
This is now split up on Ragel level, simplifying the corresponding Ruby code.
2014-05-15 10:22:05 +02:00
Yorick Peterse 723a273e4f Enforce symbols for element attributes.
This comes with a little bit of memory overhead but this should be minor in
most cases.
2014-05-15 01:04:26 +02:00
Yorick Peterse f4b9bbd4ac Removed lazy way of setting instance variables.
This process is quite a bit slower compared to setting instance variables
directly.
2014-05-15 00:43:13 +02:00