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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

go.lua (2363B)

    

  1. -- Copyright 2006-2024 Mitchell. See LICENSE.
  2. -- Go LPeg lexer.
  4. local lexer = lexer
  5. local P, S = lpeg.P, lpeg.S
  7. local lex = lexer.new(...)
  9. -- Keywords.
  10. lex:add_rule('keyword', lex:tag(lexer.KEYWORD, lex:word_match(lexer.KEYWORD)))
  12. -- Constants.
  13. lex:add_rule('constant', lex:tag(lexer.CONSTANT_BUILTIN, lex:word_match(lexer.CONSTANT_BUILTIN)))
  15. -- Types.
  16. lex:add_rule('type', lex:tag(lexer.TYPE, lex:word_match(lexer.TYPE)))
  18. -- Functions.
  19. local builtin_func = -lpeg.B('.') *
  20.   lex:tag(lexer.FUNCTION_BUILTIN, lex:word_match(lexer.FUNCTION_BUILTIN))
  21. local func = lex:tag(lexer.FUNCTION, lexer.word)
  22. local method = lpeg.B('.') * lex:tag(lexer.FUNCTION_METHOD, lexer.word)
  23. lex:add_rule('function', (builtin_func + method + func) * #(lexer.space^0 * '('))
  25. -- Identifiers.
  26. lex:add_rule('identifier', lex:tag(lexer.IDENTIFIER, lexer.word))
  28. -- Strings.
  29. local sq_str = lexer.range("'", true)
  30. local dq_str = lexer.range('"', true)
  31. local raw_str = lexer.range('`', false, false)
  32. lex:add_rule('string', lex:tag(lexer.STRING, sq_str + dq_str + raw_str))
  34. -- Comments.
  35. local line_comment = lexer.to_eol('//')
  36. local block_comment = lexer.range('/*', '*/')
  37. lex:add_rule('comment', lex:tag(lexer.COMMENT, line_comment + block_comment))
  39. -- Numbers.
  40. lex:add_rule('number', lex:tag(lexer.NUMBER, lexer.number * P('i')^-1))
  42. -- Operators.
  43. lex:add_rule('operator', lex:tag(lexer.OPERATOR, S('+-*/%&|^<>=!~:;.,()[]{}')))
  45. -- Fold points.
  46. lex:add_fold_point(lexer.OPERATOR, '{', '}')
  47. lex:add_fold_point(lexer.COMMENT, '/*', '*/')
  49. -- Word lists.
  50. lex:set_word_list(lexer.KEYWORD, {
  51.   'break', 'case', 'chan', 'const', 'continue', 'default', 'defer', 'else', 'fallthrough', 'for',
  52.   'func', 'go', 'goto', 'if', 'import', 'interface', 'map', 'package', 'range', 'return', 'select',
  53.   'struct', 'switch', 'type', 'var'
  54. })
  56. lex:set_word_list(lexer.CONSTANT_BUILTIN, 'true false iota nil')
  58. lex:set_word_list(lexer.TYPE, {
  59.   'any', 'bool', 'byte', 'comparable', 'complex64', 'complex128', 'error', 'float32', 'float64',
  60.   'int', 'int8', 'int16', 'int32', 'int64', 'rune', 'string', 'uint', 'uint8', 'uint16', 'uint32',
  61.   'uint64', 'uintptr'
  62. })
  64. lex:set_word_list(lexer.FUNCTION_BUILTIN, {
  65.   'append', 'cap', 'close', 'complex', 'copy', 'delete', 'imag', 'len', 'make', 'new', 'panic',
  66.   'print', 'println', 'real', 'recover'
  67. })
  69. lexer.property['scintillua.comment'] = '//'
  71. return lex