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Allow XPath idents to start with an underscore. 

This is valid in XML so XPath should support it as well.
This commit is contained in:
Yorick Peterse 2014-11-05 00:35:47 +01:00
parent eb3a3e7630
commit f1316c50fb
2 changed files with 5 additions and 1 deletions
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2
lib/oga/xpath/lexer.rl
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@ -194,7 +194,7 @@ module Oga
# Identifiers are used for element names, namespaces, attribute names, # Identifiers are used for element names, namespaces, attribute names,
# etc. Identifiers have to start with a letter. # etc. Identifiers have to start with a letter.
identifier = '*' | [a-zA-Z*]+ [a-zA-Z\-_0-9]*; identifier = '*' | [a-zA-Z*_]+ [a-zA-Z\-_0-9]*;
action emit_identifier { action emit_identifier {
emit(:T_IDENT, ts, te) emit(:T_IDENT, ts, te)

4
spec/oga/xpath/lexer/general_spec.rb
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@ -6,6 +6,10 @@ describe Oga::XPath::Lexer do
lex_xpath('/foo').should == [[:T_SLASH, nil], [:T_IDENT, 'foo']] lex_xpath('/foo').should == [[:T_SLASH, nil], [:T_IDENT, 'foo']]
end end
example 'lex a simple expression with a test starting with an underscore' do
lex_xpath('/_foo').should == [[:T_SLASH, nil], [:T_IDENT, '_foo']]
end
example 'lex a node test using a namespace' do example 'lex a node test using a namespace' do
lex_xpath('/foo:bar').should == [ lex_xpath('/foo:bar').should == [
[:T_SLASH, nil], [:T_SLASH, nil],