def organize_js(js, HEADER=DEFAULT_HEADER):
parser = pyjsparser.PyJsParser()
parsed = parser.parse(js) # js to esprima syntax tree
# Another way of doing that would be with my auto esprima translation but its much slower and causes import problems:
# parsed = esprima.parse(js).to_dict()
translating_nodes.clean_stacks()
translating_nodes.trans(parsed) # syntax tree to python code
print(translating_nodes.root_scope.toJSON())
return translating_nodes.root_scope
def translate_js(js, HEADER=DEFAULT_HEADER, use_compilation_plan=False):
"""js has to be a javascript source code.
returns equivalent python code."""
if use_compilation_plan and not '//' in js and not '/*' in js:
return translate_js_with_compilation_plan(js, HEADER=HEADER)
parser = pyjsparser.PyJsParser()
parsed = parser.parse(js) # js to esprima syntax tree
# Another way of doing that would be with my auto esprima translation but its much slower and causes import problems:
# parsed = esprima.parse(js).to_dict()
translating_nodes.clean_stacks()
return HEADER + translating_nodes.trans(parsed) # syntax tree to python code
def translate_js(js, HEADER=DEFAULT_HEADER, use_compilation_plan=False):
"""js has to be a javascript source code.
returns equivalent python code."""
if use_compilation_plan and not '//' in js and not '/*' in js:
return translate_js_with_compilation_plan(js, HEADER=HEADER)
parser = pyjsparser.PyJsParser()
parsed = parser.parse(js) # js to esprima syntax tree
# Another way of doing that would be with my auto esprima translation but its much slower and causes import problems:
# parsed = esprima.parse(js).to_dict()
translating_nodes.clean_stacks()
return HEADER + translating_nodes.trans(parsed) # syntax tree to python code
def translate_js_with_compilation_plan(js, HEADER=DEFAULT_HEADER):
"""js has to be a javascript source code.
returns equivalent python code.
compile plans only work with the following restrictions:
- only enabled for oneliner expressions
- when there are comments in the js code string substitution is disabled
- when there nested escaped quotes string substitution is disabled, so
cacheable:
Q1 == 1 && name == 'harry'
not cacheable:
Q1 == 1 && name == 'harry' // some comment
not cacheable:
Q1 == 1 && name == 'o\'Reilly'
not cacheable:
Q1 == 1 && name /* some comment */ == 'o\'Reilly'
"""
match_increaser_str, match_increaser_num, compilation_plan = get_compilation_plan(
js)
cp_hash = hashlib.md5(compilation_plan.encode('utf-8')).digest()
try:
python_code = cache[cp_hash]['proto_python_code']
except:
parser = pyjsparser.PyJsParser()
parsed = parser.parse(compilation_plan) # js to esprima syntax tree
# Another way of doing that would be with my auto esprima translation but its much slower and causes import problems:
# parsed = esprima.parse(js).to_dict()
translating_nodes.clean_stacks()
python_code = translating_nodes.trans(
parsed) # syntax tree to python code
cache[cp_hash] = {
'compilation_plan': compilation_plan,
'proto_python_code': python_code,
}
python_code = match_increaser_str.wrap_up(python_code)
python_code = match_increaser_num.wrap_up(python_code)
return HEADER + python_code
def translate_js_with_compilation_plan(js, HEADER=DEFAULT_HEADER):
"""js has to be a javascript source code.
returns equivalent python code.
compile plans only work with the following restrictions:
- only enabled for oneliner expressions
- when there are comments in the js code string substitution is disabled
- when there nested escaped quotes string substitution is disabled, so
cacheable:
Q1 == 1 && name == 'harry'
not cacheable:
Q1 == 1 && name == 'harry' // some comment
not cacheable:
Q1 == 1 && name == 'o\'Reilly'
not cacheable:
Q1 == 1 && name /* some comment */ == 'o\'Reilly'
"""
match_increaser_str, match_increaser_num, compilation_plan = get_compilation_plan(
js)
cp_hash = hashlib.md5(compilation_plan.encode('utf-8')).digest()
try:
python_code = cache[cp_hash]['proto_python_code']
except:
parser = pyjsparser.PyJsParser()
parsed = parser.parse(compilation_plan) # js to esprima syntax tree
# Another way of doing that would be with my auto esprima translation but its much slower and causes import problems:
# parsed = esprima.parse(js).to_dict()
translating_nodes.clean_stacks()
python_code = translating_nodes.trans(
parsed) # syntax tree to python code
cache[cp_hash] = {
'compilation_plan': compilation_plan,
'proto_python_code': python_code,
}
python_code = match_increaser_str.wrap_up(python_code)
python_code = match_increaser_num.wrap_up(python_code)
return HEADER + python_code
def pyjsparser_parse_fn(code):
parser = pyjsparser.PyJsParser()
return parser.parse(code)