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oasis-root

Compiled tree of Oasis Linux based on own branch at <https://hacktivis.me/git/oasis/> git clone https://anongit.hacktivis.me/git/oasis-root.git

chuck.lua (3444B)

    

  1. -- Copyright 2010-2024 Martin Morawetz. See LICENSE.
  2. -- ChucK LPeg lexer.
  4. local lexer = lexer
  5. local word_match = lexer.word_match
  6. local P, S = lpeg.P, lpeg.S
  8. local lex = lexer.new(...)
  10. -- Keywords.
  11. lex:add_rule('keyword', lex:tag(lexer.KEYWORD, lex:word_match(lexer.KEYWORD)))
  13. -- Constants.
  14. lex:add_rule('constant', lex:tag(lexer.CONSTANT_BUILTIN, lex:word_match(lexer.CONSTANT_BUILTIN)))
  16. -- Types.
  17. lex:add_rule('type', lex:tag(lexer.TYPE, lex:word_match(lexer.TYPE)))
  19. -- Classes.
  20. lex:add_rule('class', lex:tag(lexer.CLASS, lex:word_match(lexer.CLASS)))
  22. -- Functions.
  23. local std = 'Std.' * lex:word_match(lexer.FUNCTION_BUILTIN)
  24. local machine = 'Machine.' * lex:word_match(lexer.FUNCTION_BUILTIN .. '.machine')
  25. local math = 'Math.' * lex:word_match(lexer.FUNCTION_BUILTIN .. '.math')
  26. local func = lex:tag(lexer.FUNCTION, lexer.word) * #P('(')
  27. lex:add_rule('function', lex:tag(lexer.FUNCTION_BUILTIN, std + machine + math) + func)
  29. -- Constants.
  30. lex:add_rule('constant', lex:tag(lexer.CONSTANT_BUILTIN,
  31.   'Math.' * lex:word_match(lexer.CONSTANT_BUILTIN .. '.math')))
  33. -- Global ugens.
  34. lex:add_rule('ugen', lex:tag(lexer.CONSTANT_BUILTIN .. '.ugen', word_match('dac adc blackhole')))
  36. -- Times.
  37. lex:add_rule('time', lex:tag(lexer.NUMBER, word_match('samp ms second minute hour day week')))
  39. -- Special special value.
  40. lex:add_rule('now', lex:tag(lexer.CONSTANT_BUILTIN .. '.now', word_match('now')))
  42. -- Strings.
  43. local sq_str = P('L')^-1 * lexer.range("'", true)
  44. local dq_str = P('L')^-1 * lexer.range('"', true)
  45. lex:add_rule('string', lex:tag(lexer.STRING, sq_str + dq_str))
  47. -- Identifiers.
  48. lex:add_rule('identifier', lex:tag(lexer.IDENTIFIER, lexer.word))
  50. -- Comments.
  51. local line_comment = lexer.to_eol('//', true)
  52. local block_comment = lexer.range('/*', '*/')
  53. lex:add_rule('comment', lex:tag(lexer.COMMENT, line_comment + block_comment))
  55. -- Numbers.
  56. lex:add_rule('number', lex:tag(lexer.NUMBER, lexer.number))
  58. -- Operators.
  59. lex:add_rule('operator', lex:tag(lexer.OPERATOR, S('+-/*%<>!=^&|?~:;.()[]{}@')))
  61. -- Word lists.
  62. lex:set_word_list(lexer.KEYWORD, {
  63.   -- Control structures.
  64.   'break', 'continue', 'else', 'for', 'if', 'repeat', 'return', 'switch', 'until', 'while',
  65.   -- Other chuck keywords.
  66.   'function', 'fun', 'spork', 'const', 'new'
  67. })
  69. lex:set_word_list(lexer.CONSTANT_BUILTIN, {
  70.   'false', 'maybe', 'me', 'null', 'NULL', 'pi', 'true' -- special values
  71. })
  73. lex:set_word_list(lexer.TYPE, 'float int time dur void same')
  75. -- Class keywords.
  76. lex:set_word_list(lexer.CLASS, {
  77.   'class', 'extends', 'implements', 'interface', 'private', 'protected', 'public', 'pure', 'static',
  78.   'super', 'this'
  79. })
  81. lex:set_word_list(lexer.FUNCTION_BUILTIN, {
  82.   'abs', 'fabs', 'sgn', 'system', 'atoi', 'atof', 'getenv', 'setenv', 'mtof', 'ftom', 'powtodb',
  83.   'rmstodb', 'dbtopow', 'dbtorms'
  84. })
  86. lex:set_word_list(lexer.FUNCTION_BUILTIN .. '.machine', {
  87.   'add', 'spork', 'remove', 'replace', 'status', 'crash'
  88. })
  90. lex:set_word_list(lexer.FUNCTION_BUILTIN .. '.math', {
  91.   'sin', 'cos', 'tan', 'asin', 'acos', 'atan', 'atan2', 'sinh', 'cosh', 'tanh', 'hypot', 'pow',
  92.   'sqrt', 'exp', 'log', 'log2', 'log10', 'random', 'random2', 'randomf', 'random2f', 'srandom',
  93.   'floor', 'ceil', 'round', 'trunc', 'fmod', 'remainder', 'min', 'max', 'nextpow2', 'isinf', 'isnan'
  94. })
  96. lex:set_word_list(lexer.CONSTANT_BUILTIN .. '.math', {
  97.   'PI', 'TWO_PI', 'e', 'E', 'i', 'I', 'j', 'J', 'RANDOM_MAX'
  98. })
  100. lexer.property['scintillua.comment'] = '//'
  102. return lex