mirror of
https://github.com/RustPython/RustPython.git
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Kwak Byoung Min
fe7993572c
* Restore pyexpat lexical callback compatibility Forward processing instructions, comments, and CDATA boundaries already emitted by xml-rs so registered Python handlers observe CPython-compatible events. Constraint: Reuse existing xml-rs events without changing the dependency Confidence: high Scope-risk: narrow Tested: prek; test_pyexpat; test_sax; 402 extra tests; workspace tests; clippy Assisted-by: Codex:gpt-5.6-sol * Recognize XML compatibility restored by lexical events Remove stale expected-failure markers for CPython XML tests now satisfied by pyexpat lexical-event forwarding, and simplify parser event error propagation. Constraint: CPython test edits are limited to removing stale expectedFailure markers Confidence: high Scope-risk: narrow Directive: Keep parser event dispatch aligned with pyexpat handler behavior Tested: user-verified full suite; prek run --all-files; cargo run --release -- -m test test_pyexpat test_xml_etree test_xml_etree_c test_minidom test_sax Assisted-by: Codex:gpt-5.6-sol
69 lines
1.9 KiB
Python
69 lines
1.9 KiB
Python
import xml.sax
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from xml.parsers import expat
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from testutils import assert_raises
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assert expat.XML_PARAM_ENTITY_PARSING_NEVER == 0
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assert expat.XML_PARAM_ENTITY_PARSING_UNLESS_STANDALONE == 1
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assert expat.XML_PARAM_ENTITY_PARSING_ALWAYS == 2
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parser = expat.ParserCreate()
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for value in (0, 1, 2, 3, -1, True):
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assert parser.SetParamEntityParsing(value) == 1
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for value in ("x", None):
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with assert_raises(TypeError):
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parser.SetParamEntityParsing(value)
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with assert_raises(OverflowError):
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parser.SetParamEntityParsing(2**100)
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assert parser.GetBase() is None
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assert parser.SetBase("example.xml") is None
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assert parser.GetBase() == "example.xml"
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for value in (b"example.xml", None, 123):
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with assert_raises(TypeError):
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parser.SetBase(value)
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class Handler(xml.sax.handler.ContentHandler):
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def __init__(self):
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self.events = []
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def startElement(self, name, attrs):
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self.events.append(("start", name))
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def endElement(self, name):
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self.events.append(("end", name))
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handler = Handler()
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xml.sax.parseString("<main><child /></main>", handler)
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assert handler.events == [
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("start", "main"),
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("start", "child"),
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("end", "child"),
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("end", "main"),
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]
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events = []
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parser = expat.ParserCreate()
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parser.ProcessingInstructionHandler = lambda target, data: events.append(
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("processing-instruction", target, data)
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)
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parser.CommentHandler = lambda data: events.append(("comment", data))
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parser.StartCdataSectionHandler = lambda: events.append(("start-cdata",))
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parser.CharacterDataHandler = lambda data: events.append(("characters", data))
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parser.EndCdataSectionHandler = lambda: events.append(("end-cdata",))
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parser.Parse(
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"<?target data?><?empty?><root><!--comment--><![CDATA[text]]></root>", True
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)
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assert events == [
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("processing-instruction", "target", "data"),
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("processing-instruction", "empty", ""),
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("comment", "comment"),
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("start-cdata",),
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("characters", "text"),
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("end-cdata",),
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]
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