author | martin.trojer@nokia.com |
Fri, 31 Jul 2009 15:01:17 +0100 | |
changeset 1 | 2fb8b9db1c86 |
permissions | -rw-r--r-- |
1
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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1 |
# |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
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# ElementTree |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# $Id: ElementPath.py 1858 2004-06-17 21:31:41Z Fredrik $ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# limited xpath support for element trees |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# history: |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# 2003-05-23 fl created |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# 2003-05-28 fl added support for // etc |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# 2003-08-27 fl fixed parsing of periods in element names |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# Copyright (c) 2003-2004 by Fredrik Lundh. All rights reserved. |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# fredrik@pythonware.com |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# http://www.pythonware.com |
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# |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# -------------------------------------------------------------------- |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# The ElementTree toolkit is |
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# |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# Copyright (c) 1999-2004 by Fredrik Lundh |
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# |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# By obtaining, using, and/or copying this software and/or its |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# associated documentation, you agree that you have read, understood, |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# and will comply with the following terms and conditions: |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# Permission to use, copy, modify, and distribute this software and |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# its associated documentation for any purpose and without fee is |
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# hereby granted, provided that the above copyright notice appears in |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# all copies, and that both that copyright notice and this permission |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# notice appear in supporting documentation, and that the name of |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# Secret Labs AB or the author not be used in advertising or publicity |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# pertaining to distribution of the software without specific, written |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# prior permission. |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# SECRET LABS AB AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANT- |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# ABILITY AND FITNESS. IN NO EVENT SHALL SECRET LABS AB OR THE AUTHOR |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# OF THIS SOFTWARE. |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# -------------------------------------------------------------------- |
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|
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# Licensed to PSF under a Contributor Agreement. |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# See http://www.python.org/2.4/license for licensing details. |
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|
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Initial QEMU (symbian-qemu-0.9.1-12) import
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## |
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# Implementation module for XPath support. There's usually no reason |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# to import this module directly; the <b>ElementTree</b> does this for |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# you, if needed. |
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## |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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|
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Initial QEMU (symbian-qemu-0.9.1-12) import
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import re |
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|
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Initial QEMU (symbian-qemu-0.9.1-12) import
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xpath_tokenizer = re.compile( |
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"(::|\.\.|\(\)|[/.*:\[\]\(\)@=])|((?:\{[^}]+\})?[^/:\[\]\(\)@=\s]+)|\s+" |
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).findall |
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|
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Initial QEMU (symbian-qemu-0.9.1-12) import
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class xpath_descendant_or_self: |
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pass |
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|
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## |
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# Wrapper for a compiled XPath. |
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|
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class Path: |
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|
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## |
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# Create an Path instance from an XPath expression. |
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70 |
|
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def __init__(self, path): |
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tokens = xpath_tokenizer(path) |
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# the current version supports 'path/path'-style expressions only |
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self.path = [] |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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self.tag = None |
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if tokens and tokens[0][0] == "/": |
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raise SyntaxError("cannot use absolute path on element") |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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while tokens: |
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op, tag = tokens.pop(0) |
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if tag or op == "*": |
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self.path.append(tag or op) |
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elif op == ".": |
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pass |
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elif op == "/": |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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self.path.append(xpath_descendant_or_self()) |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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continue |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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else: |
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raise SyntaxError("unsupported path syntax (%s)" % op) |
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if tokens: |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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op, tag = tokens.pop(0) |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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if op != "/": |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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raise SyntaxError( |
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"expected path separator (%s)" % (op or tag) |
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) |
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if self.path and isinstance(self.path[-1], xpath_descendant_or_self): |
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raise SyntaxError("path cannot end with //") |
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if len(self.path) == 1 and isinstance(self.path[0], type("")): |
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self.tag = self.path[0] |
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|
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Initial QEMU (symbian-qemu-0.9.1-12) import
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## |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# Find first matching object. |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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102 |
|
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Initial QEMU (symbian-qemu-0.9.1-12) import
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def find(self, element): |
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tag = self.tag |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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if tag is None: |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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nodeset = self.findall(element) |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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if not nodeset: |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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return None |
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Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
109 |
return nodeset[0] |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
110 |
for elem in element: |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
111 |
if elem.tag == tag: |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
112 |
return elem |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
113 |
return None |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
114 |
|
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
115 |
## |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
116 |
# Find text for first matching object. |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
117 |
|
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
118 |
def findtext(self, element, default=None): |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
119 |
tag = self.tag |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
120 |
if tag is None: |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
121 |
nodeset = self.findall(element) |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
122 |
if not nodeset: |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
123 |
return default |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
124 |
return nodeset[0].text or "" |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
125 |
for elem in element: |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
126 |
if elem.tag == tag: |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
127 |
return elem.text or "" |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
128 |
return default |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
129 |
|
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
130 |
## |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
131 |
# Find all matching objects. |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
132 |
|
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
133 |
def findall(self, element): |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
134 |
nodeset = [element] |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
135 |
index = 0 |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
136 |
while 1: |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
137 |
try: |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
138 |
path = self.path[index] |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
139 |
index = index + 1 |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
140 |
except IndexError: |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
141 |
return nodeset |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
142 |
set = [] |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
143 |
if isinstance(path, xpath_descendant_or_self): |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
144 |
try: |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
145 |
tag = self.path[index] |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
146 |
if not isinstance(tag, type("")): |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
147 |
tag = None |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
148 |
else: |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
149 |
index = index + 1 |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
150 |
except IndexError: |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
151 |
tag = None # invalid path |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
152 |
for node in nodeset: |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
153 |
new = list(node.getiterator(tag)) |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
154 |
if new and new[0] is node: |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
155 |
set.extend(new[1:]) |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
156 |
else: |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
157 |
set.extend(new) |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
158 |
else: |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
159 |
for node in nodeset: |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
160 |
for node in node: |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
161 |
if path == "*" or node.tag == path: |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
162 |
set.append(node) |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
163 |
if not set: |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
164 |
return [] |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
165 |
nodeset = set |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
166 |
|
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
167 |
_cache = {} |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
168 |
|
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
169 |
## |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
170 |
# (Internal) Compile path. |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
171 |
|
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
172 |
def _compile(path): |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
173 |
p = _cache.get(path) |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
174 |
if p is not None: |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
175 |
return p |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
176 |
p = Path(path) |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
177 |
if len(_cache) >= 100: |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
178 |
_cache.clear() |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
179 |
_cache[path] = p |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
180 |
return p |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
181 |
|
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
182 |
## |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
183 |
# Find first matching object. |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
184 |
|
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
185 |
def find(element, path): |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
186 |
return _compile(path).find(element) |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
187 |
|
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
188 |
## |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
189 |
# Find text for first matching object. |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
190 |
|
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
191 |
def findtext(element, path, default=None): |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
192 |
return _compile(path).findtext(element, default) |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
193 |
|
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
194 |
## |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
195 |
# Find all matching objects. |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
196 |
|
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
197 |
def findall(element, path): |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
198 |
return _compile(path).findall(element) |