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authorQt by Nokia <qt-info@nokia.com>2011-04-27 12:05:43 +0200
committeraxis <qt-info@nokia.com>2011-04-27 12:05:43 +0200
commit38be0d13830efd2d98281c645c3a60afe05ffece (patch)
tree6ea73f3ec77f7d153333779883e8120f82820abe /util/local_database/xpathlite.py
Initial import from the monolithic Qt.
This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
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+#!/usr/bin/env python
+#############################################################################
+##
+## Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+## All rights reserved.
+## Contact: Nokia Corporation (qt-info@nokia.com)
+##
+## This file is part of the test suite of the Qt Toolkit.
+##
+## $QT_BEGIN_LICENSE:LGPL$
+## No Commercial Usage
+## This file contains pre-release code and may not be distributed.
+## You may use this file in accordance with the terms and conditions
+## contained in the Technology Preview License Agreement accompanying
+## this package.
+##
+## GNU Lesser General Public License Usage
+## Alternatively, this file may be used under the terms of the GNU Lesser
+## General Public License version 2.1 as published by the Free Software
+## Foundation and appearing in the file LICENSE.LGPL included in the
+## packaging of this file. Please review the following information to
+## ensure the GNU Lesser General Public License version 2.1 requirements
+## will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+##
+## In addition, as a special exception, Nokia gives you certain additional
+## rights. These rights are described in the Nokia Qt LGPL Exception
+## version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+##
+## If you have questions regarding the use of this file, please contact
+## Nokia at qt-info@nokia.com.
+##
+##
+##
+##
+##
+##
+##
+##
+## $QT_END_LICENSE$
+##
+#############################################################################
+
+import sys
+import os
+import xml.dom.minidom
+
+doc_cache = {}
+
+class DraftResolution:
+ # See http://www.unicode.org/cldr/process.html for description
+ unconfirmed = 'unconfirmed'
+ provisional = 'provisional'
+ contributed = 'contributed'
+ approved = 'approved'
+ _values = { unconfirmed : 1, provisional : 2, contributed : 3, approved : 4 }
+ def __init__(self, resolution):
+ self.resolution = resolution
+ def toInt(self):
+ return DraftResolution._values[self.resolution]
+
+class Error:
+ def __init__(self, msg):
+ self.msg = msg
+ def __str__(self):
+ return self.msg
+
+def findChild(parent, tag_name, arg_name=None, arg_value=None, draft=None):
+ for node in parent.childNodes:
+ if node.nodeType != node.ELEMENT_NODE:
+ continue
+ if node.nodeName != tag_name:
+ continue
+ if arg_value:
+ if not node.attributes.has_key(arg_name):
+ continue
+ if node.attributes[arg_name].nodeValue != arg_value:
+ continue
+ if draft:
+ if not node.attributes.has_key('draft'):
+ # if draft is not specified then it's approved
+ return node
+ value = node.attributes['draft'].nodeValue
+ value = DraftResolution(value).toInt()
+ exemplar = DraftResolution(draft).toInt()
+ if exemplar > value:
+ continue
+ return node
+ return False
+
+def findTagsInFile(file, path):
+ doc = False
+ if doc_cache.has_key(file):
+ doc = doc_cache[file]
+ else:
+ doc = xml.dom.minidom.parse(file)
+ doc_cache[file] = doc
+
+ elt = doc.documentElement
+ tag_spec_list = path.split("/")
+ last_entry = None
+ for i in range(len(tag_spec_list)):
+ tag_spec = tag_spec_list[i]
+ tag_name = tag_spec
+ arg_name = 'type'
+ arg_value = ''
+ left_bracket = tag_spec.find('[')
+ if left_bracket != -1:
+ tag_name = tag_spec[:left_bracket]
+ arg_value = tag_spec[left_bracket+1:-1].split("=")
+ if len(arg_value) == 2:
+ arg_name = arg_value[0]
+ arg_value = arg_value[1]
+ else:
+ arg_value = arg_value[0]
+ elt = findChild(elt, tag_name, arg_name, arg_value)
+ if not elt:
+ return None
+ ret = []
+ if elt.childNodes:
+ for node in elt.childNodes:
+ if node.attributes:
+ element = [node.nodeName, None]
+ element[1] = node.attributes.items()
+ ret.append(element)
+ else:
+ if elt.attributes:
+ element = [elt.nodeName, None]
+ element[1] = elt.attributes.items()
+ ret.append(element)
+ return ret
+
+def _findEntryInFile(file, path, draft=None, attribute=None):
+ doc = False
+ if doc_cache.has_key(file):
+ doc = doc_cache[file]
+ else:
+ doc = xml.dom.minidom.parse(file)
+ doc_cache[file] = doc
+
+ elt = doc.documentElement
+ tag_spec_list = path.split("/")
+ last_entry = None
+ for i in range(len(tag_spec_list)):
+ tag_spec = tag_spec_list[i]
+ tag_name = tag_spec
+ arg_name = 'type'
+ arg_value = ''
+ left_bracket = tag_spec.find('[')
+ if left_bracket != -1:
+ tag_name = tag_spec[:left_bracket]
+ arg_value = tag_spec[left_bracket+1:-1].split("=")
+ if len(arg_value) == 2:
+ arg_name = arg_value[0]
+ arg_value = arg_value[1]
+ else:
+ arg_value = arg_value[0]
+ alias = findChild(elt, 'alias')
+ if alias and alias.attributes['source'].nodeValue == 'locale':
+ path = alias.attributes['path'].nodeValue
+ aliaspath = tag_spec_list[:i] + path.split("/")
+ def resolve(x, y):
+ if y == '..':
+ return x[:-1]
+ return x + [y]
+ # resolve all dot-dot parts of the path
+ aliaspath = reduce(resolve, aliaspath, [])
+ # remove attribute specification that our xpathlite doesnt support
+ aliaspath = map(lambda x: x.replace("@type=", "").replace("'", ""), aliaspath)
+ # append the remaining path
+ aliaspath = aliaspath + tag_spec_list[i:]
+ aliaspath = "/".join(aliaspath)
+ # "locale" aliases are special - we need to start lookup from scratch
+ return (None, aliaspath)
+ elt = findChild(elt, tag_name, arg_name, arg_value, draft)
+ if not elt:
+ return ("", None)
+ if attribute is not None:
+ if elt.attributes.has_key(attribute):
+ return (elt.attributes[attribute].nodeValue, None)
+ return (None, None)
+ return (elt.firstChild.nodeValue, None)
+
+def findAlias(file):
+ if not doc_cache.has_key(file):
+ return False
+ doc = doc_cache[file]
+ alias_elt = findChild(doc.documentElement, "alias")
+ if not alias_elt:
+ return False
+ if not alias_elt.attributes.has_key('source'):
+ return False
+ return alias_elt.attributes['source'].nodeValue
+
+def _findEntry(base, path, draft=None, attribute=None):
+ file = base
+ if base.endswith(".xml"):
+ filename = base
+ base = base[:-4]
+ else:
+ file = base + ".xml"
+ (dirname, filename) = os.path.split(base)
+ items = filename.split("_")
+ # split locale name into items and iterate through them from back to front
+ # example: az_Latn_AZ => [az_Latn_AZ, az_Latn, az]
+ items = reversed(map(lambda x: "_".join(items[:x+1]), range(len(items))))
+ for item in items:
+ file = dirname + "/" + item + ".xml"
+ if os.path.isfile(file):
+ alias = findAlias(file)
+ if alias:
+ # if alias is found we should follow it and stop processing current file
+ # see http://www.unicode.org/reports/tr35/#Common_Elements
+ aliasfile = os.path.dirname(file) + "/" + alias + ".xml"
+ if not os.path.isfile(aliasfile):
+ raise Error("findEntry: fatal error: found an alias '%s' to '%s', but the alias file couldnt be found" % (filename, alias))
+ # found an alias, recurse into parsing it
+ result = _findEntry(aliasfile, path, draft, attribute)
+ return result
+ (result, aliaspath) = _findEntryInFile(file, path, draft, attribute)
+ if aliaspath:
+ # start lookup again because of the alias source="locale"
+ return _findEntry(base, aliaspath, draft, attribute)
+ if result:
+ return result
+ return None
+
+def findEntry(base, path, draft=None, attribute=None):
+ file = base
+ if base.endswith(".xml"):
+ file = base
+ base = base[:-4]
+ else:
+ file = base + ".xml"
+ (dirname, filename) = os.path.split(base)
+
+ result = None
+ while path:
+ result = _findEntry(base, path, draft, attribute)
+ if result:
+ return result
+ (result, aliaspath) = _findEntryInFile(dirname + "/root.xml", path, draft, attribute)
+ if result:
+ return result
+ if not aliaspath:
+ raise Error("findEntry: fatal error: %s: did not found key %s" % (filename, path))
+ path = aliaspath
+
+ return result
+