class GameLanguage
Constants
- Racc_arg
- Racc_debug_parser
- Racc_token_to_s_table
Attributes
filename[R]
lineno[R]
state[RW]
Public Instance Methods
_next_token()
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# File lib/interpreter/gameLexer.rb, line 54 def _next_token text = @ss.peek(1) @lineno += 1 if text == "\n" token = case @state when nil case when (text = @ss.scan(/[ \t]+[a-z]+|[ \t]+[A-Z][a-z]+|[ \t]+[a-z]+\d+|[ \t]+[A-Z][a-z]+\d+/)) action { [:WORD, text.gsub!(/[\ \t]+/,'')] } when (text = @ss.scan(/[ \t]+/)) ; when (text = @ss.scan(/\d+|-\d+/)) action {[:NUMBER, text.to_i]} when (text = @ss.scan(/\d+\.\d+|-\d+\.\d+/)) action {[:FLOAT, test.to_f]} when (text = @ss.scan(/\w+/)) action {[:FUNCTION, text]} else text = @ss.string[@ss.pos .. -1] raise ScanError, "can not match: '" + text + "'" end # if else raise ScanError, "undefined state: '" + state.to_s + "'" end # case state token end
_reduce_none(val, _values, result)
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# File lib/interpreter/gameParser.rb, line 168 def _reduce_none(val, _values, result) val[0] end
action() { || ... }
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# File lib/interpreter/gameLexer.rb, line 23 def action yield end
load_file( filename )
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# File lib/interpreter/gameLexer.rb, line 33 def load_file( filename ) @filename = filename open(filename, "r") do |f| scan_setup(f.read) end end
next_token()
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# File lib/interpreter/gameLexer.rb, line 46 def next_token return if @ss.eos? # skips empty actions until token = _next_token or @ss.eos?; end token end
scan_file( filename )
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# File lib/interpreter/gameLexer.rb, line 40 def scan_file( filename ) load_file(filename) do_parse end
scan_setup(str)
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# File lib/interpreter/gameLexer.rb, line 17 def scan_setup(str) @ss = StringScanner.new(str) @lineno = 1 @state = nil end
scan_str(str)
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# File lib/interpreter/gameLexer.rb, line 27 def scan_str(str) scan_setup(str) do_parse end
Also aliased as: scan
tokenize(code)
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# File lib/interpreter/gameLexer.rb, line 86 def tokenize(code) scan_setup(code) tokens = [] while token = next_token tokens << token end tokens end