view pyink/extensions.py @ 1401:2fc1f54a1a3b

Mainly fix the clone_from_subtree to update the children of the parent node. We need to clearify all related codes in the future to make the logic more clear.
author wycc
date Sun, 03 Apr 2011 18:12:42 +0800
parents 2d56ed5b0995
children
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import pybExtension
import html5css3, mbbbox

_all_extensions = [html5css3.extension, mbbbox.extension]

_DEBUG_FLAG_NAME = 'PYINK_EXT_DBG_ENABLE'

def _reg_extensions():
    import os

    if os.environ.has_key(_DEBUG_FLAG_NAME):
        debug_level = int(os.environ[_DEBUG_FLAG_NAME])
    else:
        debug_level = 0
        pass
    
    if debug_level > 0:
        print 'Loading extensions'
        pass
    
    for ext_imp, ext_id, ext_name, ioe_name, ioe_items in _all_extensions:
        if debug_level > 0:
            print '    register %s -- %s' % (ext_id, ext_name)
            pass
        
        #
        # ioe_items is description items for input, output, and effect.
        #
        if ioe_name not in ('input', 'output', 'effect'):
            raise ValueError, 'invalid extension type (%s)' % (ioe_name)
        
        kws = {ioe_name: ioe_items}
        pybExtension.register_extension(ext_imp, ext_id, ext_name, **kws)
        pass
    pass

def initial():
    _reg_extensions()
    pass