Sascha Brawer
1f2fadc864
[feaLib] Parse language statements
2015-08-10 16:30:10 +02:00
Sascha Brawer
4ab6e6b169
[feaLib] Parse script statement
2015-08-10 11:30:47 +02:00
Sascha Brawer
4bcdc60ca8
[feaLib] Remove write() methods
...
For now, it looks like we won't need them for anything; removing this
code makes the codebase a little bit less complicated.
2015-08-10 11:24:24 +02:00
Sascha Brawer
bc8279bab1
[feaLib] Parse ignore sub and ignore substitute statements
2015-08-10 11:17:52 +02:00
Sascha Brawer
482c498943
[feaLib] Improve unit tests for subtitution rules
2015-08-10 11:17:52 +02:00
Sascha Brawer
08d01bb24d
[feaLib] Parse substitution rules for LookupTypes 1 and 3
...
The parsed representation should handle most of other LookupTypes
as well, but the parser cannot recognize them yet.
2015-08-10 11:17:52 +02:00
Sascha Brawer
37fa652fa9
[feaLib] Add unit test for scoping of valueRecordDef statements
2015-08-10 11:17:52 +02:00
Sascha Brawer
402726f02c
[feaLib] Clarify an error message
2015-08-10 11:17:52 +02:00
Sascha Brawer
5270a978a9
[feaLib] Support hexadecimal numbers
...
The OpenType Feature File specification does not specify hex numbers
as explicit token type, but they appear several times in the examples
given by the spec.
2015-08-10 11:17:52 +02:00
Sascha Brawer
c06a377aa3
[feaLib] Implement valueRecordDef statements
2015-08-10 11:17:52 +02:00
Sascha Brawer
4169e584cc
[feaLib] Clarify error message for malformed glyph class references
...
The new message makes clearer what exactly the parser was looking for
when processing a glyph class reference.
2015-08-10 11:17:52 +02:00
Sascha Brawer
bb5a7e7caf
[feaLib] Make symbol tables separate objects
...
For example, named value records follow the same scoping rules
as named glyph classes.
2015-08-10 11:17:52 +02:00
Sascha Brawer
944fab8a5f
[feaLib] Implement parsing of feature blocks
2015-08-10 11:17:52 +02:00
Sascha Brawer
3936e334f1
[feaLib] Resolve references to glyph classes
2015-08-10 11:17:52 +02:00
Sascha Brawer
a0bbd5fab9
[feaLib] Detect duplicate glyph class definitions
2015-08-10 11:17:52 +02:00
Sascha Brawer
d72aac035e
[feaLib] Restrict length of glyph class names to 30 characters
...
This is required by the OpenType Feature File specification,
section 2.g.ii "Named glyph classes".
2015-08-10 11:17:52 +02:00
Sascha Brawer
ba238344b1
[feaLib] Implement top-level glyph class definitions
2015-08-10 11:17:52 +02:00
Sascha Brawer
b86e30d7c6
[feaLib] Rename features.py to ast.py, for Abstract Syntax Tree
2015-08-10 11:17:52 +02:00
Sascha Brawer
23997cfd95
[feaLib] Prevent deprecation warnings on Python 3
...
In Python 3, the method unittest.TestCase.assertRaisesRegexp
has been renamed to "assertRaisesRegex", and the frameworks spits
out deprecation warnings when using the method name from Python 2.
2015-08-10 11:17:52 +02:00
Sascha Brawer
05fe077654
[feaLib] Parse languagesystem
2015-08-10 11:17:52 +02:00
Sascha Brawer
f4ed6b5a85
Make pretty error messages for LexerError
2015-08-10 11:17:52 +02:00
Sascha Brawer
efbcba79a4
Handle inclusion of OpenType feature files
2015-08-10 11:17:52 +02:00
Sascha Brawer
ac700b0af5
Support FILENAME tokens when lexing OpenType feature files
...
When the lexer encounters the "include" keyword, it now enters
a special mode for scanning file names. After having scanned over
the file name, the lexer goes back to normal. The exact format
of file name strings is not defined by the OpenType feature file
specification, so we accept any character that is not a closing
parenthesis.
2015-08-10 11:17:52 +02:00
Sascha Brawer
612d2122ad
Store file path in Lexer
...
This simplifies the implementation of the parser for
OpenType feature files, since it can now just keep
token locations returned by the lexer. Before this
change, the parser had to un-pack the location tuples
and build new tuples that included the file path.
2015-08-10 11:17:52 +02:00
Sascha Brawer
da29d22748
Add lexer for OpenType feature files
2015-08-10 11:17:52 +02:00
