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Commita137d14

Browse files
kovidgoyalgsnedders
authored andcommitted
Preserve attribute order when parsing
1 parent0a885c6 commita137d14

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7 files changed

+100
-92
lines changed

7 files changed

+100
-92
lines changed

‎README.rst

Lines changed: 0 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -116,10 +116,6 @@ functionality:
116116
- ``chardet`` can be used as a fallback when character encoding cannot
117117
be determined.
118118

119-
- ``ordereddict`` can be used under Python 2.6
120-
(``collections.OrderedDict`` is used instead on later versions) to
121-
serialize attributes in alphabetical order.
122-
123119

124120
Bugs
125121
----

‎html5lib/constants.py

Lines changed: 67 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -437,6 +437,73 @@
437437
(namespaces["mathml"],"mtext")
438438
])
439439

440+
adjustSVGAttributes= {
441+
"attributename":"attributeName",
442+
"attributetype":"attributeType",
443+
"basefrequency":"baseFrequency",
444+
"baseprofile":"baseProfile",
445+
"calcmode":"calcMode",
446+
"clippathunits":"clipPathUnits",
447+
"contentscripttype":"contentScriptType",
448+
"contentstyletype":"contentStyleType",
449+
"diffuseconstant":"diffuseConstant",
450+
"edgemode":"edgeMode",
451+
"externalresourcesrequired":"externalResourcesRequired",
452+
"filterres":"filterRes",
453+
"filterunits":"filterUnits",
454+
"glyphref":"glyphRef",
455+
"gradienttransform":"gradientTransform",
456+
"gradientunits":"gradientUnits",
457+
"kernelmatrix":"kernelMatrix",
458+
"kernelunitlength":"kernelUnitLength",
459+
"keypoints":"keyPoints",
460+
"keysplines":"keySplines",
461+
"keytimes":"keyTimes",
462+
"lengthadjust":"lengthAdjust",
463+
"limitingconeangle":"limitingConeAngle",
464+
"markerheight":"markerHeight",
465+
"markerunits":"markerUnits",
466+
"markerwidth":"markerWidth",
467+
"maskcontentunits":"maskContentUnits",
468+
"maskunits":"maskUnits",
469+
"numoctaves":"numOctaves",
470+
"pathlength":"pathLength",
471+
"patterncontentunits":"patternContentUnits",
472+
"patterntransform":"patternTransform",
473+
"patternunits":"patternUnits",
474+
"pointsatx":"pointsAtX",
475+
"pointsaty":"pointsAtY",
476+
"pointsatz":"pointsAtZ",
477+
"preservealpha":"preserveAlpha",
478+
"preserveaspectratio":"preserveAspectRatio",
479+
"primitiveunits":"primitiveUnits",
480+
"refx":"refX",
481+
"refy":"refY",
482+
"repeatcount":"repeatCount",
483+
"repeatdur":"repeatDur",
484+
"requiredextensions":"requiredExtensions",
485+
"requiredfeatures":"requiredFeatures",
486+
"specularconstant":"specularConstant",
487+
"specularexponent":"specularExponent",
488+
"spreadmethod":"spreadMethod",
489+
"startoffset":"startOffset",
490+
"stddeviation":"stdDeviation",
491+
"stitchtiles":"stitchTiles",
492+
"surfacescale":"surfaceScale",
493+
"systemlanguage":"systemLanguage",
494+
"tablevalues":"tableValues",
495+
"targetx":"targetX",
496+
"targety":"targetY",
497+
"textlength":"textLength",
498+
"viewbox":"viewBox",
499+
"viewtarget":"viewTarget",
500+
"xchannelselector":"xChannelSelector",
501+
"ychannelselector":"yChannelSelector",
502+
"zoomandpan":"zoomAndPan"
503+
}
504+
505+
adjustMathMLAttributes= {"definitionurl":"definitionURL"}
506+
440507
adjustForeignAttributes= {
441508
"xlink:actuate": ("xlink","actuate",namespaces["xlink"]),
442509
"xlink:arcrole": ("xlink","arcrole",namespaces["xlink"]),

‎html5lib/html5parser.py

Lines changed: 21 additions & 83 deletions
Original file line numberDiff line numberDiff line change
@@ -1,8 +1,13 @@
11
from __future__importabsolute_import,division,unicode_literals
2-
fromsiximportwith_metaclass
2+
fromsiximportwith_metaclass,viewkeys,PY3
33

44
importtypes
55

6+
try:
7+
fromcollectionsimportOrderedDict
8+
exceptImportError:
9+
fromordereddictimportOrderedDict
10+
611
from .importinputstream
712
from .importtokenizer
813

@@ -17,6 +22,7 @@
1722
namespaces,
1823
htmlIntegrationPointElements,mathmlTextIntegrationPointElements,
1924
adjustForeignAttributesasadjustForeignAttributesMap,
25+
adjustMathMLAttributes,adjustSVGAttributes,
2026
E,
2127
ReparseException
2228
)
@@ -273,96 +279,18 @@ def normalizeToken(self, token):
273279
""" HTML5 specific normalizations to the token stream """
274280

275281
iftoken["type"]==tokenTypes["StartTag"]:
276-
token["data"]=dict(token["data"][::-1])
282+
token["data"]=OrderedDict(token['data'][::-1])
277283

278284
returntoken
279285

280286
defadjustMathMLAttributes(self,token):
281-
replacements= {"definitionurl":"definitionURL"}
282-
fork,vinreplacements.items():
283-
ifkintoken["data"]:
284-
token["data"][v]=token["data"][k]
285-
deltoken["data"][k]
287+
adjust_attributes(token,adjustMathMLAttributes)
286288

287289
defadjustSVGAttributes(self,token):
288-
replacements= {
289-
"attributename":"attributeName",
290-
"attributetype":"attributeType",
291-
"basefrequency":"baseFrequency",
292-
"baseprofile":"baseProfile",
293-
"calcmode":"calcMode",
294-
"clippathunits":"clipPathUnits",
295-
"contentscripttype":"contentScriptType",
296-
"contentstyletype":"contentStyleType",
297-
"diffuseconstant":"diffuseConstant",
298-
"edgemode":"edgeMode",
299-
"externalresourcesrequired":"externalResourcesRequired",
300-
"filterres":"filterRes",
301-
"filterunits":"filterUnits",
302-
"glyphref":"glyphRef",
303-
"gradienttransform":"gradientTransform",
304-
"gradientunits":"gradientUnits",
305-
"kernelmatrix":"kernelMatrix",
306-
"kernelunitlength":"kernelUnitLength",
307-
"keypoints":"keyPoints",
308-
"keysplines":"keySplines",
309-
"keytimes":"keyTimes",
310-
"lengthadjust":"lengthAdjust",
311-
"limitingconeangle":"limitingConeAngle",
312-
"markerheight":"markerHeight",
313-
"markerunits":"markerUnits",
314-
"markerwidth":"markerWidth",
315-
"maskcontentunits":"maskContentUnits",
316-
"maskunits":"maskUnits",
317-
"numoctaves":"numOctaves",
318-
"pathlength":"pathLength",
319-
"patterncontentunits":"patternContentUnits",
320-
"patterntransform":"patternTransform",
321-
"patternunits":"patternUnits",
322-
"pointsatx":"pointsAtX",
323-
"pointsaty":"pointsAtY",
324-
"pointsatz":"pointsAtZ",
325-
"preservealpha":"preserveAlpha",
326-
"preserveaspectratio":"preserveAspectRatio",
327-
"primitiveunits":"primitiveUnits",
328-
"refx":"refX",
329-
"refy":"refY",
330-
"repeatcount":"repeatCount",
331-
"repeatdur":"repeatDur",
332-
"requiredextensions":"requiredExtensions",
333-
"requiredfeatures":"requiredFeatures",
334-
"specularconstant":"specularConstant",
335-
"specularexponent":"specularExponent",
336-
"spreadmethod":"spreadMethod",
337-
"startoffset":"startOffset",
338-
"stddeviation":"stdDeviation",
339-
"stitchtiles":"stitchTiles",
340-
"surfacescale":"surfaceScale",
341-
"systemlanguage":"systemLanguage",
342-
"tablevalues":"tableValues",
343-
"targetx":"targetX",
344-
"targety":"targetY",
345-
"textlength":"textLength",
346-
"viewbox":"viewBox",
347-
"viewtarget":"viewTarget",
348-
"xchannelselector":"xChannelSelector",
349-
"ychannelselector":"yChannelSelector",
350-
"zoomandpan":"zoomAndPan"
351-
}
352-
fororiginalNameinlist(token["data"].keys()):
353-
iforiginalNameinreplacements:
354-
svgName=replacements[originalName]
355-
token["data"][svgName]=token["data"][originalName]
356-
deltoken["data"][originalName]
290+
adjust_attributes(token,adjustSVGAttributes)
357291

358292
defadjustForeignAttributes(self,token):
359-
replacements=adjustForeignAttributesMap
360-
361-
fororiginalNameintoken["data"].keys():
362-
iforiginalNameinreplacements:
363-
foreignName=replacements[originalName]
364-
token["data"][foreignName]=token["data"][originalName]
365-
deltoken["data"][originalName]
293+
adjust_attributes(token,adjustForeignAttributesMap)
366294

367295
defreparseTokenNormal(self,token):
368296
# pylint:disable=unused-argument
@@ -2791,6 +2719,16 @@ def processEndTag(self, token):
27912719
}
27922720

27932721

2722+
defadjust_attributes(token,replacements):
2723+
ifPY3orutils.PY27:
2724+
needs_adjustment=viewkeys(token['data'])&viewkeys(replacements)
2725+
else:
2726+
needs_adjustment=frozenset(token['data'])&frozenset(replacements)
2727+
ifneeds_adjustment:
2728+
token['data']=OrderedDict((replacements.get(k,k),v)
2729+
fork,vintoken['data'].items())
2730+
2731+
27942732
defimpliedTagToken(name,type="EndTag",attributes=None,
27952733
selfClosing=False):
27962734
ifattributesisNone:

‎html5lib/tests/test_parser2.py

Lines changed: 7 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -49,3 +49,10 @@ def test_namespace_html_elements_1_etree():
4949

5050
deftest_unicode_file():
5151
assertparse(io.StringIO("a"))isnotNone
52+
53+
54+
deftest_duplicate_attribute():
55+
# This is here because we impl it in parser and not tokenizer
56+
doc=parse('<p class=a class=b>')
57+
el=doc[1][0]
58+
assertel.get("class")=="a"

‎html5lib/utils.py

Lines changed: 4 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,6 @@
11
from __future__importabsolute_import,division,unicode_literals
22

3+
importsys
34
fromtypesimportModuleType
45

56
fromsiximporttext_type
@@ -12,9 +13,11 @@
1213

1314
__all__= ["default_etree","MethodDispatcher","isSurrogatePair",
1415
"surrogatePairToCodepoint","moduleFactoryFactory",
15-
"supports_lone_surrogates"]
16+
"supports_lone_surrogates","PY27"]
1617

1718

19+
PY27=sys.version_info[0]==2andsys.version_info[1]>=7
20+
1821
# Platforms not supporting lone surrogates (\uD800-\uDFFF) should be
1922
# caught by the below test. In general this would be any platform
2023
# using UTF-16 as its encoding of unicode strings, such as

‎requirements-optional.txt

Lines changed: 0 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -15,7 +15,3 @@ lxml ; platform_python_implementation == 'CPython'
1515
# DATrie can be used in place of our Python trie implementation for
1616
# slightly better parsing performance.
1717
datrie ; platform_python_implementation == 'CPython'
18-
19-
# Can be used to force attributes to be serialized in alphabetical
20-
# order.
21-
ordereddict ; python_version < '2.7'

‎requirements.txt

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -1,2 +1,3 @@
11
six
22
webencodings
3+
ordereddict ;python_version<'2.7'

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