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40 lines
960 B
Ruby
40 lines
960 B
Ruby
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require "rexml/child"
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module REXML
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module DTD
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class NotationDecl < Child
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START = "<!NOTATION"
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START_RE = /^\s*#{START}/um
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PUBLIC = /^\s*#{START}\s+(\w[\w-]*)\s+(PUBLIC)\s+((["']).*?\4)\s*>/um
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SYSTEM = /^\s*#{START}\s+(\w[\w-]*)\s+(SYSTEM)\s+((["']).*?\4)\s*>/um
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def initialize src
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super()
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if src.match( PUBLIC )
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md = src.match( PUBLIC, true )
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elsif src.match( SYSTEM )
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md = src.match( SYSTEM, true )
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else
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raise ParseException.new( "error parsing notation: no matching pattern", src )
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end
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@name = md[1]
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@middle = md[2]
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@rest = md[3]
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end
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def to_s
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"<!NOTATION #@name #@middle #@rest>"
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end
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def write( output, indent )
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output << (' '*indent) if indent > 0
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output << to_s
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end
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def NotationDecl.parse_source source, listener
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md = source.match( PATTERN_RE, true )
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thing = md[0].squeeze " \t\n\r"
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listener.send inspect.downcase, thing
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end
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end
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end
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end
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