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XPath 1.0 Language Support #126

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rhdunn opened this issue Jan 19, 2019 · 0 comments
Open
1 of 9 tasks

XPath 1.0 Language Support #126

rhdunn opened this issue Jan 19, 2019 · 0 comments
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lexer parser

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@rhdunn
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rhdunn commented Jan 19, 2019

  • Create a valid XPath 1.0 EBNF grammar that is written in terms of XPath 2.0 EBNF symbols

Lexer:

  • XPath 1.0 lexer ((: and :) tokens)

Parser:

  • EqualityExpr
  • RelationalExpr
  • MultiplicativeExpr -- operator precedence
  • UnaryExpr -- operator precedence
  • UnionExpr -- operator precedence

Conformance:

  • Extra-grammatical constraint - filter-expr
  • Extra-grammatical constraint - predicate
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