Mercurial > p > roundup > code
annotate roundup/cgi/TAL/TALParser.py @ 5132:0142b4fb5a2d
issue2550648 - partial fix for problem in this issue. Ezio Melotti
reported that the expression editor allowed the user to generate an
expression using retired values. To align the expression editor with
the simple dropdown search item, retired values are now removed from
the expression editor.
Do we really want this though? Supposed a keyword is retired and I
want to search for an issue with that retired keyword? Do we have a
best policy document that says to remove retired keywords from all
places it could possibly be used? It could be argued that the simple
search dropdown is wrong and should allow selecting retired values.
| author | John Rouillard <rouilj@ieee.org> |
|---|---|
| date | Fri, 08 Jul 2016 19:31:02 -0400 |
| parents | 8c2402a78bb0 |
| children | 12fe83f90f0d |
| rev | line source |
|---|---|
| 1049 | 1 ############################################################################## |
| 2 # | |
| 3 # Copyright (c) 2001, 2002 Zope Corporation and Contributors. | |
| 4 # All Rights Reserved. | |
|
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5 # |
| 1049 | 6 # This software is subject to the provisions of the Zope Public License, |
| 7 # Version 2.0 (ZPL). A copy of the ZPL should accompany this distribution. | |
| 8 # THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED | |
| 9 # WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
| 10 # WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS | |
|
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11 # FOR A PARTICULAR PURPOSE. |
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12 # |
| 1049 | 13 ############################################################################## |
| 14 """ | |
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15 Parse XML and compile to TALInterpreter intermediate code. |
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parents:
2005
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16 """ |
| 1049 | 17 |
| 18 from XMLParser import XMLParser | |
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19 from TALDefs import XML_NS, ZOPE_I18N_NS, ZOPE_METAL_NS, ZOPE_TAL_NS |
| 1049 | 20 from TALGenerator import TALGenerator |
| 21 | |
| 22 class TALParser(XMLParser): | |
| 23 | |
| 24 ordered_attributes = 1 | |
| 25 | |
| 26 def __init__(self, gen=None): # Override | |
| 27 XMLParser.__init__(self) | |
| 28 if gen is None: | |
| 29 gen = TALGenerator() | |
| 30 self.gen = gen | |
| 31 self.nsStack = [] | |
| 32 self.nsDict = {XML_NS: 'xml'} | |
| 33 self.nsNew = [] | |
| 34 | |
| 35 def getCode(self): | |
| 36 return self.gen.getCode() | |
| 37 | |
| 38 def getWarnings(self): | |
| 39 return () | |
| 40 | |
| 41 def StartNamespaceDeclHandler(self, prefix, uri): | |
| 42 self.nsStack.append(self.nsDict.copy()) | |
| 43 self.nsDict[uri] = prefix | |
| 44 self.nsNew.append((prefix, uri)) | |
| 45 | |
| 46 def EndNamespaceDeclHandler(self, prefix): | |
| 47 self.nsDict = self.nsStack.pop() | |
| 48 | |
| 49 def StartElementHandler(self, name, attrs): | |
| 50 if self.ordered_attributes: | |
| 51 # attrs is a list of alternating names and values | |
| 52 attrlist = [] | |
| 53 for i in range(0, len(attrs), 2): | |
| 54 key = attrs[i] | |
| 55 value = attrs[i+1] | |
| 56 attrlist.append((key, value)) | |
| 57 else: | |
| 58 # attrs is a dict of {name: value} | |
| 59 attrlist = attrs.items() | |
| 60 attrlist.sort() # For definiteness | |
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61 name, attrlist, taldict, metaldict, i18ndict \ |
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62 = self.process_ns(name, attrlist) |
| 1049 | 63 attrlist = self.xmlnsattrs() + attrlist |
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64 self.gen.emitStartElement(name, attrlist, taldict, metaldict, i18ndict) |
| 1049 | 65 |
| 66 def process_ns(self, name, attrlist): | |
| 67 taldict = {} | |
| 68 metaldict = {} | |
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69 i18ndict = {} |
| 1049 | 70 fixedattrlist = [] |
| 71 name, namebase, namens = self.fixname(name) | |
| 72 for key, value in attrlist: | |
| 73 key, keybase, keyns = self.fixname(key) | |
| 74 ns = keyns or namens # default to tag namespace | |
| 75 item = key, value | |
| 76 if ns == 'metal': | |
| 77 metaldict[keybase] = value | |
| 78 item = item + ("metal",) | |
| 79 elif ns == 'tal': | |
| 80 taldict[keybase] = value | |
| 81 item = item + ("tal",) | |
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82 elif ns == 'i18n': |
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2005
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83 assert 0, "dealing with i18n: " + `(keybase, value)` |
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84 i18ndict[keybase] = value |
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parents:
2005
diff
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85 item = item + ('i18n',) |
| 1049 | 86 fixedattrlist.append(item) |
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parents:
2005
diff
changeset
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87 if namens in ('metal', 'tal', 'i18n'): |
| 1049 | 88 taldict['tal tag'] = namens |
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parents:
2005
diff
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89 return name, fixedattrlist, taldict, metaldict, i18ndict |
| 1049 | 90 |
| 91 def xmlnsattrs(self): | |
| 92 newlist = [] | |
| 93 for prefix, uri in self.nsNew: | |
| 94 if prefix: | |
| 95 key = "xmlns:" + prefix | |
| 96 else: | |
| 97 key = "xmlns" | |
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parents:
2005
diff
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98 if uri in (ZOPE_METAL_NS, ZOPE_TAL_NS, ZOPE_I18N_NS): |
| 1049 | 99 item = (key, uri, "xmlns") |
| 100 else: | |
| 101 item = (key, uri) | |
| 102 newlist.append(item) | |
| 103 self.nsNew = [] | |
| 104 return newlist | |
| 105 | |
| 106 def fixname(self, name): | |
| 107 if ' ' in name: | |
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parents:
2005
diff
changeset
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108 uri, name = name.split(' ') |
| 1049 | 109 prefix = self.nsDict[uri] |
| 110 prefixed = name | |
| 111 if prefix: | |
| 112 prefixed = "%s:%s" % (prefix, name) | |
| 113 ns = 'x' | |
| 114 if uri == ZOPE_TAL_NS: | |
| 115 ns = 'tal' | |
| 116 elif uri == ZOPE_METAL_NS: | |
| 117 ns = 'metal' | |
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parents:
2005
diff
changeset
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118 elif uri == ZOPE_I18N_NS: |
|
8c2402a78bb0
beginning getting ZPT up to date: TAL first
Richard Jones <richard@users.sourceforge.net>
parents:
2005
diff
changeset
|
119 ns = 'i18n' |
| 1049 | 120 return (prefixed, name, ns) |
| 121 return (name, name, None) | |
| 122 | |
| 123 def EndElementHandler(self, name): | |
| 124 name = self.fixname(name)[0] | |
| 125 self.gen.emitEndElement(name) | |
| 126 | |
| 127 def DefaultHandler(self, text): | |
| 128 self.gen.emitRawText(text) | |
| 129 | |
| 130 def test(): | |
| 131 import sys | |
| 132 p = TALParser() | |
| 133 file = "tests/input/test01.xml" | |
| 134 if sys.argv[1:]: | |
| 135 file = sys.argv[1] | |
| 136 p.parseFile(file) | |
| 137 program, macros = p.getCode() | |
| 138 from TALInterpreter import TALInterpreter | |
| 139 from DummyEngine import DummyEngine | |
| 140 engine = DummyEngine(macros) | |
| 141 TALInterpreter(program, macros, engine, sys.stdout, wrap=0)() | |
| 142 | |
| 143 if __name__ == "__main__": | |
| 144 test() |