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📁 ..
📄 __init__.py(247 B)
📄 __init__.pyc(181 B)
📄 __init__.pyo(181 B)
📄 _ast_util.py(25.01 KB)
📄 _ast_util.pyc(32.86 KB)
📄 _ast_util.pyo(33.1 KB)
📄 ast.py(5.53 KB)
📄 ast.pyc(5.21 KB)
📄 ast.pyo(5.28 KB)
📄 cache.py(7.55 KB)
📄 cache.pyc(8.04 KB)
📄 cache.pyo(8.05 KB)
📄 codegen.py(47.73 KB)
📄 codegen.pyc(36.47 KB)
📄 codegen.pyo(36.93 KB)
📄 exceptions.py(11.92 KB)
📄 exceptions.pyc(12.91 KB)
📄 exceptions.pyo(12.99 KB)
📁 ext
📄 filters.py(5.65 KB)
📄 filters.pyc(7.2 KB)
📄 filters.pyo(7.24 KB)
📄 lexer.py(16.38 KB)
📄 lexer.pyc(12.35 KB)
📄 lexer.pyo(12.51 KB)
📄 lookup.py(12.58 KB)
📄 lookup.pyc(11.28 KB)
📄 lookup.pyo(11.28 KB)
📄 parsetree.py(19.91 KB)
📄 parsetree.pyc(23.68 KB)
📄 parsetree.pyo(23.92 KB)
📄 pygen.py(9.26 KB)
📄 pygen.pyc(7.22 KB)
📄 pygen.pyo(7.29 KB)
📄 pyparser.py(18.16 KB)
📄 pyparser.pyc(22.55 KB)
📄 pyparser.pyo(22.72 KB)
📄 runtime.py(26.11 KB)
📄 runtime.pyc(31.72 KB)
📄 runtime.pyo(31.93 KB)
📄 template.py(24.28 KB)
📄 template.pyc(21.26 KB)
📄 template.pyo(21.33 KB)
📄 util.py(12.58 KB)
📄 util.pyc(16.56 KB)
📄 util.pyo(16.67 KB)

Editing: ast.py

# mako/ast.py
# Copyright (C) 2006-2012 the Mako authors and contributors <see AUTHORS file>
#
# This module is part of Mako and is released under
# the MIT License: http://www.opensource.org/licenses/mit-license.php

"""utilities for analyzing expressions and blocks of Python
code, as well as generating Python from AST nodes"""

from mako import exceptions, pyparser, util
import re

class PythonCode(object):
    """represents information about a string containing Python code"""
    def __init__(self, code, **exception_kwargs):
        self.code = code

# represents all identifiers which are assigned to at some point in
        # the code
        self.declared_identifiers = set()

# represents all identifiers which are referenced before their
        # assignment, if any
        self.undeclared_identifiers = set()

# note that an identifier can be in both the undeclared and declared
        # lists.

# using AST to parse instead of using code.co_varnames,
        # code.co_names has several advantages:
        # - we can locate an identifier as "undeclared" even if
        # its declared later in the same block of code
        # - AST is less likely to break with version changes
        # (for example, the behavior of co_names changed a little bit
        # in python version 2.5)
        if isinstance(code, basestring):
            expr = pyparser.parse(code.lstrip(), "exec", **exception_kwargs)
        else:
            expr = code

f = pyparser.FindIdentifiers(self, **exception_kwargs)
        f.visit(expr)

class ArgumentList(object):
    """parses a fragment of code as a comma-separated list of expressions"""
    def __init__(self, code, **exception_kwargs):
        self.codeargs = []
        self.args = []
        self.declared_identifiers = set()
        self.undeclared_identifiers = set()
        if isinstance(code, basestring):
            if re.match(r"\S", code) and not re.match(r",\s*$", code):
                # if theres text and no trailing comma, insure its parsed
                # as a tuple by adding a trailing comma
                code  += ","
            expr = pyparser.parse(code, "exec", **exception_kwargs)
        else:
            expr = code

f = pyparser.FindTuple(self, PythonCode, **exception_kwargs)
        f.visit(expr)

class PythonFragment(PythonCode):
    """extends PythonCode to provide identifier lookups in partial control
    statements

e.g.
        for x in 5:
        elif y==9:
        except (MyException, e):
    etc.
    """
    def __init__(self, code, **exception_kwargs):
        m = re.match(r'^(\w+)(?:\s+(.*?))?:\s*(#|$)', code.strip(), re.S)
        if not m:
            raise exceptions.CompileException(
                          "Fragment '%s' is not a partial control statement" %
                          code, **exception_kwargs)
        if m.group(3):
            code = code[:m.start(3)]
        (keyword, expr) = m.group(1,2)
        if keyword in ['for','if', 'while']:
            code = code + "pass"
        elif keyword == 'try':
            code = code + "pass\nexcept:pass"
        elif keyword == 'elif' or keyword == 'else':
            code = "if False:pass\n" + code + "pass"
        elif keyword == 'except':
            code = "try:pass\n" + code + "pass"
        elif keyword == 'with':
            code = code + "pass"
        else:
            raise exceptions.CompileException(
                                "Unsupported control keyword: '%s'" %
                                keyword, **exception_kwargs)
        super(PythonFragment, self).__init__(code, **exception_kwargs)

class FunctionDecl(object):
    """function declaration"""
    def __init__(self, code, allow_kwargs=True, **exception_kwargs):
        self.code = code
        expr = pyparser.parse(code, "exec", **exception_kwargs)

f = pyparser.ParseFunc(self, **exception_kwargs)
        f.visit(expr)
        if not hasattr(self, 'funcname'):
            raise exceptions.CompileException(
                              "Code '%s' is not a function declaration" % code,
                              **exception_kwargs)
        if not allow_kwargs and self.kwargs:
            raise exceptions.CompileException(
                                "'**%s' keyword argument not allowed here" %
                                self.argnames[-1], **exception_kwargs)

def get_argument_expressions(self, include_defaults=True):
        """return the argument declarations of this FunctionDecl as a printable
        list."""

namedecls = []
        defaults = [d for d in self.defaults]
        kwargs = self.kwargs
        varargs = self.varargs
        argnames = [f for f in self.argnames]
        argnames.reverse()
        for arg in argnames:
            default = None
            if kwargs:
                arg = "**" + arg
                kwargs = False
            elif varargs:
                arg = "*" + arg
                varargs = False
            else:
                default = len(defaults) and defaults.pop() or None
            if include_defaults and default:
                namedecls.insert(0, "%s=%s" %
                            (arg,
                            pyparser.ExpressionGenerator(default).value()
                            )
                        )
            else:
                namedecls.insert(0, arg)
        return namedecls

class FunctionArgs(FunctionDecl):
    """the argument portion of a function declaration"""

def __init__(self, code, **kwargs):
        super(FunctionArgs, self).__init__("def ANON(%s):pass" % code,
                **kwargs)

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Editing: ast.py

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