OpenEuphoria

1. alpha = ^"a^" .. ^"z^" | ^"A^" .. ^"Z^"

2. digit = ^"0^" .. ^"9^"

3. uscore = ^"_^"

4. eol = ^"new_line_character^"

5. name = ( alpha₁ | uscore₃ ) { alpha₁ | digit₂ | uscore₃ }

6. spacename = name₅ ^":^"

7. identifier = [ spacename₆ ] name₅

8. atom = atom_integer_lit₉ | atom_real_lit₁₀

9. atom_integer_lit = ^"-2^53" .. ^"+2^53" | ^"-9.007e15^" .. ^"+9.007e15^"

10. atom_real_lit = ^"-2¹⁰²⁴+1^" .. ^"+2¹⁰²⁴-1^" | ^"-1.798e308+1^" .. ^"+1.798e308-1^"

11. integer = integer_lit₁₂

12. integer_lit = ^"-2^30" .. ^"+2³⁰-1^" | ^"-1_073_741_824^" .. ^"+1_073_741_823^"

13. sequence = ^"{^" [ object₁₄ ] { ^",^" object₁₄ } [ ^",^{" "}$^" ] ^"}^"

14. object = atom₈ | integer₁₁ | sequence₁₃

15. expression = atomexpr₁₆ | intexpr₁₇ | strexpr₁₈ | seqexpr₁₉ | boolexpr₂₁

16. atomexpr = atom₈

17. intexpr = integer₁₁

18. strexpr = ^"an_expression_that_evaluates_to_a_string^"

19. seqexpr = sequence₁₃

20. bool_lit = ^"0^" | ^"1^" | ^"0^" | ^"!0^"

21. boolexpr = ^"atom_zero_represents_falsehood_and_non-zero_represents_truth^"

22. relationop = ^"<^" | ^">^" | ^"<=^" | ^">=^" | ^"=^" | ^"!=^"

23. binaryexpr = { expression₁₅ binop₂₄ expression₁₅ }

24. binop = ^"and^" | ^"or^" | ^"xor^" | ^"+^" | ^"-^" | ^"*^" | ^"/^" | ^"&^"

25. unaryexpr = { unaryop₂₆ expression₁₅ }

26. unaryop = ^"not^" | ^"-^" | ^"+^"

27. seqenceop = ^"{^" [ item₂₉ | { headitem₂₈ } item₂₉ ] [ lastitem₃₀ ] ^"}^"

28. headitem = object₁₄ ^",^"

29. item = object₁₄

30. lastitem = ^",^{" "}$^"

31. statement = ^"complete_unit_of_code_executed_by_the_interpreter^"

32. stmblk = statement₃₁ { statement₃₁ }

33. label = ^"label^" stringlit₃₅

34. listdelim = ^",^"

35. stringlit = simplestringlit₃₆ | rawstringlit₄₂

36. simplestringlit = sslitstart₃₇ { char₃₉ | escchar₄₀ } sslitend₃₈

37. sslitstart = ^"\"^"

38. sslitend = ^"\"^"

39. char = ^"any_byte_value^"

40. escchar = esclead₄₁ ( ^"t^" | ^"n^" | ^"r^" | <sup>"

"</sup> )

41. esclead = ^"
"

42. rawstringlit = dqrawstring₄₃ | bqrawstring₄₄

43. dqrawstring = ^"\"\"\"^" [ marginstr₄₅ ] { char₃₉ } ^"\"\"\"^"

44. bqrawstring = ^"`<sup>"</sup> [ marginstr<sub>45</sub> ] { char<sub>39</sub> } <sup>"</sup>`^"

45. marginstr = ^"_^"

46. scopemodifier = ^"global^" | ^"public^" | ^"export^" | ^"override^"

47. datatype = ^"atom^" | ^"integer^" | ^"sequence^" | ^"object^" | identifier₇

48. includestmt = ^"include^" fileref₄₉ [ ^"as^" namespaceid₅₀ ] eol₄

49. fileref = ^"file_path_that_may_be_enclosed_in_double-quotes^"

50. namespaceid = identifier₇

51. slice = slicestart₅₂ intexpr₁₇ slicedelim₅₃ ( intexpr₁₇ | ^"$^" ) sliceend₅₄

52. slicestart = ^"[^"

53. slicedelim = ^"..^"

54. sliceend = ^"]^"

55. ifstmt = iftest₅₆ { elsif₅₇ } [ else₅₈ ] endif₅₉

56. iftest = ^"if^" atomexpr₁₆ [ label₃₃ ] ^"then^" [ stmblk₃₂ ]

57. elsif = ^"elsif^" atomexpr₁₆ ^"then^" [ stmblk₃₂ ]

58. else = ^"else^" [ stmblk₃₂ ]

59. endif = ^"end^{" "}if^"

60. ifdefstmt = ifdeftest₆₁ [ elsdefif₆₂ { char₃₉ } ] [ elsedef₆₃ ] enddefif₆₄

61. ifdeftest = ^"ifdef^" defexpr₆₅ ^"then^" [ stmblk₃₂ ]

62. elsdefif = ^"elsifedf^" defexpr₆₅ ^"then^" [ stmblk₃₂ ]

63. elsedef = ^"elsede^" [stmblk]"

64. enddefif = ^"end^{" "}ifdef^"

65. defexpr = defterm₆₆ [ defop₆₇ defterm₆₆ ]

66. defterm = [ ^"not^" identifier₇ ]

67. defop = ^"and^" | ^"or^"

68. switchstmt = switchtest₆₉ case₇₁ { case₇₁ } [ caseelse₇₃ ] [ endswitch₇₄ ]

69. switchtest = ^"switch^" expression₁₅ [ withfall₇₀ ] [ label₃₃ ] ^"do^"

70. withfall = ( ^"with^" | ^"without^" ) ^"fallthru^"

71. case = ^"case^" caselist₇₂ ^"then^" [ stmblk₃₂ ]

72. caselist = expression₁₅ { listdelim₃₄ expression₁₅ }

73. caseelse = ^"case^{" "}else^"

74. endswitch = ^"end^{" "}switch^"

75. breakstmt = ^"break^" [ stringlit₃₅ ]

76. continuestmt = ^"continue^" [ stringlit₃₅ ]

77. retrystmt = ^"retry^" [ stringlit₃₅ ]

78. exitstmt = ^"exit^" [ stringlit₃₅ ]

79. fallthrustmt = ^"fallthru^"

80. forstmt = ^"for^" foridx₈₁ [ label₃₃ ] ^"do^" [ stmblk₃₂ ] ^"end^{" "}for^"

81. foridx = identifier₇ ^"=^" atomexpr₁₆ ^"to^" atomexpr₁₆ [ ^"by^" atomexpr₁₆ ]

82. whilestmt = ^"while^" boolexpr₂₁ [ withentry₈₃ ] [ label₃₃ ] ^"do^" stmblk₃₂ [ entry₈₄ ] ^"end^{" "}while^"

83. withentry = ^"with^{" "}entry^"

84. entry = ^"entry^" [ stmblk₃₂ ]

85. loopstmt = ^"loop^" [ withentry₈₃ ] [ label₃₃ ] ^"do^" stmblk₃₂ [ entry₈₄ ] ^"until^" boolexpr₂₁ ^"end^{" "}loop^"

86. gotostmt = ^"goto^" label₃₃

87. vardeclare = [ scopemodifier₄₆ ] datatype₄₇ identlist₈₈

88. identlist = ident₈₉ [ ^",^" identlist₈₈ ]

89. ident = identifier₇ [ ^"=^" expression₁₅ ]

90. constdeclare = [ scopemodifier₄₆ ] ^"constant^" identlist₈₈

91. enumdeclare = [ scopemodifier₄₆ ] [ enumval₉₂ | enumtype₉₄ ]

92. enumval = ^"enum^" [ ^"by^" enumdelta₉₃ ] identlist₈₈

93. enumdelta = [ ^"+^" | ^"-^" | ^"*^" | ^"/^" ] atomexpr₁₆

94. enumtype = ^"enum^{" "}type^" [ ^"by^" enumdelta₉₃ ] identlist₈₈ ^"end^{" "}type^"

95. call = identifier₇ ^"(^" [ arglist₉₆ ] ^")^"

96. arglist = argument₉₇ [ ^",^" arglist₉₆ ]

97. argument = expression₁₅

98. procdeclare = [ scopemodifier₄₆ ] ^"procedure^" identifier₇ ^"(^" [ paramlist₉₉ ] ^")^" [ stmblk₃₂ ] ^"end^{" "}procedure^"

99. paramlist = parameter₁₀₀ [ ^",^" paramlist₉₉ ]

100. parameter = datatype₄₇ identifier₇

101. funcdeclare = [ scopemodifier₄₆ ] ^"function^" identifier₇ ^"(^" [ paramlist₉₉ ] ^")^" [ stmblk₃₂ ] ^"end^{" "}function^"

102. typedeclar = [ scopemodifier₄₆ ] ^"type^" identifier₇ ^"(^" parameter₁₀₀ ^")^" [ stmblk₃₂ ] ^"end^{" "}type^"

103. return = ^"return^" expression₁₅

104. namespace = ^"namespace^" identifier₇ eol₄

105. withstmt = [ ^"with^" | ^"without^" ] withoption₁₀₆

106. withoption = [ ^"profile^" | ^"profile_time^" | ^"trace^" | ^"batch^" | ^"type_check^" | ^"indirect_includes^" | ^"inline^" | withwarning₁₀₇ ]

107. withwarning = ^"warning^" [ warnopt₁₀₈ ]

108. warnopt = setwarn₁₀₉ | addwarn? | savewarn₁₁₀ | restorewarn₁₁₁ | strictwarn₁₁₂

109. setwarn = [ ^"+=^" | ^"&=^" ] ^"{^" warnlist? ^"}^"

110. savewarn = ^"save^"

111. restorewarn = ^"restore^"

112. strictwarn = ^"strict^"

113. subscripting = identifier₇ { index₁₁₄ }

114. index = ^"[^" intexpr₁₇ ^"]^"

115. assignmono = identifier₇ ^"=^" expression₁₅

116. assignmulti = ^"{^" identifier₇ [ { ^",^" identifier₇ } ] ^"}^{" "}=^" expression₁₅ | ^"{^" expression₁₅ [ { ^",^" expression₁₅ } ] ^"}^"

117. assignwithop = identifier₇ ( ^"+^" | ^"-^" | ^"/^" | ^"*^" | ^"&^" ) ^"=^" expression₁₅