66 lines
1.3 KiB
Ruby
66 lines
1.3 KiB
Ruby
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require 'hammer/hammer_ext'
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require 'hammer/internal'
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require 'hammer/parser'
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require 'hammer/parser_builder'
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# TODO:
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# Probably need to rename this file to 'hammer-parser.rb', so
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# people can use "require 'hammer-parser'" in their code.
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# TODO: Put tests in test/ directory.
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parser = Hammer::Parser.build do
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token 'blah'
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ch 'a'
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choice {
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sequence {
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token 'abc'
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}
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token 'def'
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}
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end
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p parser
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if parser
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p parser.parse 'blahaabcd'
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p parser.parse 'blahadefd'
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p parser.parse 'blahablad'
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p parser.parse 'blaha'
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p parser.parse 'blah'
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end
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parser = Hammer::Parser::Sequence.new(
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Hammer::Parser::Token.new('Hello '),
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Hammer::Parser::Choice.new(
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Hammer::Parser::Token.new('Mom'),
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Hammer::Parser::Token.new('Dad')
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),
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Hammer::Parser::Token.new('!')
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)
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p parser.parse 'Hello Mom!'
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parser = Hammer::Parser.build {
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token 'Hello '
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choice {
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token 'Mom'
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token 'Dad'
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}
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token '!'
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}
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p parser.parse 'Hello Mom!'
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parser = Hammer::ParserBuilder.new
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.token('Hello ')
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.choice(Hammer::Parser::Token.new('Mom'), Hammer::Parser::Token.new('Dad'))
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.token('!')
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.build
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p parser.parse 'Hello Mom!'
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# not yet working
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#h = Hammer::Parser
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#parser = h.sequence(h.token('Hello'), h.choice(h.token('Mom'), h.token('Dad')), h.token('!'))
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#p parser.parse 'Hello Mom!'
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