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Generic code generator from WebIDL interfaces.

Project description

PyWIdl
======

Generic code generator from WebIDL interfaces.

pywidl parses WebIDL code using PLY, builds the interface object model and emits
whatever code using user's mako templates or even user's native python module.


WebIDL object model
-------------------
Defined in pywidl/model.py

Common usage in tests/idl.py



Example usage
-------------

$ cat fragment.idl

exception GraphicsException {
DOMString reason;
};

interface Paint { };

interface SolidColor : Paint {
attribute float red;
attribute float green;
attribute float blue;
};

interface Pattern : Paint {
attribute DOMString imageURL;
};

[Constructor]
interface GraphicalWindow {
readonly attribute unsigned long width;
readonly attribute unsigned long height;

attribute Paint currentPaint;

void drawRectangle(float x, float y, float width, float height);

void drawText(float x, float y, DOMString text);
};

$ cat mako.tpl

// ${foo}
% for definition in definitions:
${definition.name}
% endfor

$ pywidl -m -o fragment.txt -t mako.tpl fragment.idl -- --foo=bar

$ cat fragment.txt

// bar
GraphicsException
Paint
SolidColor
Pattern
GraphicalWindow

$ cat native.py

def render(definitions=[], source=None, output=None,
template=None, template_type=None, foo=None, **kwargs):

with open(output, 'w') as out:
print >>out, "// %s" % foo
for definition in definitions:
print >>out, definition.name

$ PYTHONPATH=".:$PYTHONPATH"
pywidl -n -o fragment.txt -t native fragment.idl-- --foo=bar

$ cat fragment.txt

// bar
GraphicsException
Paint
SolidColor
Pattern
GraphicalWindow

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0.1

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