iframe-proxy | Sunbelt Computer Software

Repository navigation

History

#!/usr/bin/env python

# -*- coding: utf-8 -*-

# This file is part of KDevelop

# Licensed under the GNU GPL

# This script once was used for parsing documents; that implementation is long gone.

# It's just kept for looking at the AST created by some code quickly; you can do this:

# echo 'foo = baz.bar(3, "str")' |./pythonpythonparser.py

# or similar to quickly see the AST for that code.

import ast

from xml.dom.minidom import Document

from lxml import etree

import types

import sys

import re

class KDevelopNodeVisitor(ast.NodeVisitor):

basenode = etree.Element("pythonast")

currentnode = None

nodecnt = 0

childNodeMap = {}

def __init__(self, *arg, **args):

super(KDevelopNodeVisitor, self).__init__(*arg, **args)

self.currentnode = self.basenode

def generic_visit(self, node):

self.nodecnt += 1

#self.childNodeMap[self.nodecnt] = node

self.childNodeMap[node] = self.nodecnt

node_xmlrepr = etree.Element(node.__class__.__name__ + "Ast")

node_xmlrepr.set('nodecnt', str(self.nodecnt))

self.currentnode.append(node_xmlrepr)

save_currentnode = self.currentnode

self.currentnode = node_xmlrepr

fields = list(node._attributes)

fields.extend(list(node._fields))

searching_locally = []

for field in fields:

value = getattr(node, field)

if type(value) not in [type(0), type(""), type(0.0), type(False)]:

continue

try:

node_xmlrepr.set(field.lower(), str(value))

except:

sys.stderr.write("Warning: Invalid string literal replaced by empty string!\n")

node_xmlrepr.set(field.lower(), "")

super(KDevelopNodeVisitor, self).generic_visit(node)

key = ''

for field in fields:

multiple_keys = []

value = getattr(node, field)

if type(value) not in [type(0), type(""), type(0.0), type(False)]:

if type(value) == type([]):

for currentValue in value:

try:

multiple_keys.append(str(self.childNodeMap[currentValue]))

except KeyError:

sys.stderr.write("Warning: missing key on node " + str(node) + "\n")

multiple_keys.append('')

key = ','.join(multiple_keys)

node_xmlrepr.set("NRLST_" + field.lower(), str(key))

else:

try:

key = self.childNodeMap[value]

except KeyError:

key = ''

node_xmlrepr.set("NR_" + field.lower(), str(key))

self.currentnode = save_currentnode

f = sys.stdin.read()

v = KDevelopNodeVisitor()

try:

parsetree = ast.parse(f)

except Exception as e:

try:

sys.stderr.write(str(e.lineno) + ':::' + str(e.offset))

sys.stderr.write(":::" + str(type(e)).replace('<type \'exceptions.', '').replace('\'>', '') + ':::' + str(e.msg) + ": \"" + str(e.text).replace("\n", "") + "\"")

except:

sys.stderr.write('?:::?:::'+str(e)+':::?')

else:

v.visit(parsetree)

print(str(etree.tostring(v.basenode, xml_declaration=True, pretty_print=True, encoding='UTF-8')).replace('\\n', '\n'))

Sunbelt Computer Software

PL/B Language Development and Support

Navigation Menu

Repository navigation

pythonpythonparser.py

pythonpythonparser.py

Sunbelt Computer Software

PL/B Language Development and Support

FilesExpand file tree

pythonpythonparser.py

Latest commit

History

pythonpythonparser.py

File metadata and controls