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b8313b58
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2023-12-26T21:59:08
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xpath: Rewrite substring-before and substring-after
Don't use buffers. Check malloc failures.
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608c65bb
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2023-01-18T15:15:41
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xpath: number('-') should return NaN
Fixes https://gitlab.gnome.org/GNOME/libxslt/-/issues/81
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57b81c20
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2022-03-05T18:20:29
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Normalize XPath strings in-place
Simplify the code and fix a potential memory leak.
Fixes #343.
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30a6533e
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2019-03-08T12:15:17
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Fix float casts in xmlXPathSubstringFunction
Rewrite conversion of double to int in xmlXPathSubstringFunction, adding
range checks to avoid undefined behavior. Make sure to add start and
length as floating-point numbers before converting to int. Fix a bug
when rounding negative start indices.
Remove unneeded calls to xmlXPathIs{Inf,NaN} and rely on IEEE math
instead. Avoid computing the string length. xmlUTF8Strsub works as
expected if the length of the requested substring exceeds the input.
Found with libFuzzer and UBSan.
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7482f41f
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2017-06-01T22:00:19
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Check for integer overflow in xmlXPathFormatNumber
Check for overflow before casting double to int.
Found with afl-fuzz and UBSan.
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f4029cd4
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2016-04-21T16:37:26
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Check XPath exponents for overflow
Avoid undefined behavior and wrong results with huge exponents.
Found with afl-fuzz and UBSan.
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a851868a
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2017-05-29T20:14:42
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Parse small XPath numbers more accurately
Don't count leading zeros towards the fraction size limit. This allows
to parse numbers like
0.0000000000000000000000000000000000000000000000000000000001
which is the only standard-conformant way to represent such numbers, as
scientific notation isn't allowed in XPath 1.0. (It is allowed in XPath
2.0 and in libxml2 as an extension, though.)
Overall accuracy is still bad, see bug 783238.
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4bebb030
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2016-04-21T13:41:09
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Rework XPath rounding functions
Use the C library's floor and ceil functions. The old code was overly
complicated for no apparent reason and could result in undefined
behavior when handling NaNs (found with afl-fuzz and UBSan).
Fix wrong comment in xmlXPathRoundFunction. The implementation was
already following the spec and rounding half up.
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839689a9
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2016-04-27T18:00:12
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Don't recurse into OP_VALUEs in xmlXPathOptimizeExpression
The ch1 slot of OP_VALUEs contains an invalid value. Ignore it.
Fixes bug #760325:
https://bugzilla.gnome.org/show_bug.cgi?id=760325
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e2893903
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2016-04-21T19:19:23
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Fix parsing of NCNames in XPath
The NCName parser would allow any NameChar as start character. For
example, the following XPath expressions would compile:
self::-abc
self::0abc
self::.abc
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fdc9156a
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2002-07-01T21:52:03
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applied patch from Richard Jinks for the namespace axis + fixed a memory
* xpath.c: applied patch from Richard Jinks for the namespace
axis + fixed a memory error.
* parser.c parserInternals.c: applied patches from Peter Jacobi
removing ctxt->token for good.
* xmlschemas.c xmlschemastypes.c: fixed a few memory leaks
popped out by the regression tests.
* Makefile.am: patch for threads makefile from Gary Pennington
Daniel
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9e412302
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2002-06-10T15:59:44
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patch from Richard Jinks for XPath substring() function new set of tests
* xpath.c: patch from Richard Jinks for XPath substring() function
* result/XPath/expr/strings test/XPath/expr/strings: new set of tests
Daniel
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eca82810
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2002-04-24T11:42:02
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another XPath conformance patch from Richard Jinks Daniel
* test/XPath/expr/floats test/XPath/expr/functions
result/XPath/expr/floats result/XPath/expr/functions
xpath.c: another XPath conformance patch from Richard Jinks
Daniel
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0eafdef9
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2002-04-10T16:14:34
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another patch from Richard Jinks for substring conformance update of the
* xpath.c: another patch from Richard Jinks for substring conformance
* test/XPath/expr/floats test/XPath/expr/strings
result/XPath/expr/floats result/XPath/expr/strings: update of the
test suite to check those.
Daniel
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21458c85
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2002-03-27T16:12:22
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more patches from Richard Jinks Updated tests though they show a
* trionan.c trionan.h xpath.c: more patches from Richard Jinks
* test/XPath/expr/compare test/XPath/expr/equality
test/XPath/expr/floats test/XPath/expr/functions
test/XPath/expr/strings result/XPath/expr/compare
result/XPath/expr/equality result/XPath/expr/floats
result/XPath/expr/functions result/XPath/expr/strings: Updated
tests though they show a divergence on Linux
Daniel
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70a9da54
|
2001-04-21T16:57:29
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trio upgrade and integration
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4b637079
|
2001-02-21T21:52:55
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- xpath.c: finally implemented xmlXPathCompareNodeSets
- test/XPath/expr/floats results/XPath/expr/floats: added
a test for float expressions
Daniel
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7c1206fc
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1999-10-14T09:10:25
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Revamped HTML parsing, lots of bug fixes for HTML stuff,
Added xmlValidGetValidElements and xmlValidGetPotentialChildren,
Completed and cleaned up the tests,
Added doc for new modules gnome-xml-xmlmemory.html and gnome-xml-nanohttp.html,
Daniel
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1566d3a9
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1999-07-15T14:24:29
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Added XPath code (http://www.w3.org/TR/xpath), updated HTML support and docs, Daniel
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