214 lines
10 KiB
Python
214 lines
10 KiB
Python
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"""
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pygments.lexers.fortran
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~~~~~~~~~~~~~~~~~~~~~~~
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Lexers for Fortran languages.
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:copyright: Copyright 2006-2022 by the Pygments team, see AUTHORS.
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:license: BSD, see LICENSE for details.
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"""
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import re
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from pygments.lexer import RegexLexer, bygroups, include, words, using, default
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from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
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Number, Punctuation, Generic
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__all__ = ['FortranLexer', 'FortranFixedLexer']
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class FortranLexer(RegexLexer):
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"""
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Lexer for FORTRAN 90 code.
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.. versionadded:: 0.10
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"""
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name = 'Fortran'
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url = 'https://fortran-lang.org/'
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aliases = ['fortran', 'f90']
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filenames = ['*.f03', '*.f90', '*.F03', '*.F90']
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mimetypes = ['text/x-fortran']
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flags = re.IGNORECASE | re.MULTILINE
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# Data Types: INTEGER, REAL, COMPLEX, LOGICAL, CHARACTER and DOUBLE PRECISION
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# Operators: **, *, +, -, /, <, >, <=, >=, ==, /=
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# Logical (?): NOT, AND, OR, EQV, NEQV
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# Builtins:
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# http://gcc.gnu.org/onlinedocs/gcc-3.4.6/g77/Table-of-Intrinsic-Functions.html
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tokens = {
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'root': [
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(r'^#.*\n', Comment.Preproc),
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(r'!.*\n', Comment),
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include('strings'),
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include('core'),
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(r'[a-z][\w$]*', Name),
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include('nums'),
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(r'[\s]+', Text.Whitespace),
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],
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'core': [
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# Statements
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(r'\b(DO)(\s+)(CONCURRENT)\b', bygroups(Keyword, Text.Whitespace, Keyword)),
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(r'\b(GO)(\s*)(TO)\b', bygroups(Keyword, Text.Whitespace, Keyword)),
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(words((
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'ABSTRACT', 'ACCEPT', 'ALL', 'ALLSTOP', 'ALLOCATABLE', 'ALLOCATE',
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'ARRAY', 'ASSIGN', 'ASSOCIATE', 'ASYNCHRONOUS', 'BACKSPACE', 'BIND',
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'BLOCK', 'BLOCKDATA', 'BYTE', 'CALL', 'CASE', 'CLASS', 'CLOSE',
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'CODIMENSION', 'COMMON', 'CONTIGUOUS', 'CONTAINS',
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'CONTINUE', 'CRITICAL', 'CYCLE', 'DATA', 'DEALLOCATE', 'DECODE',
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'DEFERRED', 'DIMENSION', 'DO', 'ELEMENTAL', 'ELSE', 'ENCODE', 'END',
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'ENDASSOCIATE', 'ENDBLOCK', 'ENDDO', 'ENDENUM', 'ENDFORALL',
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'ENDFUNCTION', 'ENDIF', 'ENDINTERFACE', 'ENDMODULE', 'ENDPROGRAM',
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'ENDSELECT', 'ENDSUBMODULE', 'ENDSUBROUTINE', 'ENDTYPE', 'ENDWHERE',
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'ENTRY', 'ENUM', 'ENUMERATOR', 'EQUIVALENCE', 'ERROR STOP', 'EXIT',
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'EXTENDS', 'EXTERNAL', 'EXTRINSIC', 'FILE', 'FINAL', 'FORALL', 'FORMAT',
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'FUNCTION', 'GENERIC', 'IF', 'IMAGES', 'IMPLICIT',
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'IMPORT', 'IMPURE', 'INCLUDE', 'INQUIRE', 'INTENT', 'INTERFACE',
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'INTRINSIC', 'IS', 'LOCK', 'MEMORY', 'MODULE', 'NAMELIST', 'NULLIFY',
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'NONE', 'NON_INTRINSIC', 'NON_OVERRIDABLE', 'NOPASS', 'ONLY', 'OPEN',
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'OPTIONAL', 'OPTIONS', 'PARAMETER', 'PASS', 'PAUSE', 'POINTER', 'PRINT',
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'PRIVATE', 'PROGRAM', 'PROCEDURE', 'PROTECTED', 'PUBLIC', 'PURE', 'READ',
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'RECURSIVE', 'RESULT', 'RETURN', 'REWIND', 'SAVE', 'SELECT', 'SEQUENCE',
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'STOP', 'SUBMODULE', 'SUBROUTINE', 'SYNC', 'SYNCALL', 'SYNCIMAGES',
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'SYNCMEMORY', 'TARGET', 'THEN', 'TYPE', 'UNLOCK', 'USE', 'VALUE',
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'VOLATILE', 'WHERE', 'WRITE', 'WHILE'), prefix=r'\b', suffix=r'\s*\b'),
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Keyword),
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# Data Types
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(words((
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'CHARACTER', 'COMPLEX', 'DOUBLE PRECISION', 'DOUBLE COMPLEX', 'INTEGER',
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'LOGICAL', 'REAL', 'C_INT', 'C_SHORT', 'C_LONG', 'C_LONG_LONG',
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'C_SIGNED_CHAR', 'C_SIZE_T', 'C_INT8_T', 'C_INT16_T', 'C_INT32_T',
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'C_INT64_T', 'C_INT_LEAST8_T', 'C_INT_LEAST16_T', 'C_INT_LEAST32_T',
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'C_INT_LEAST64_T', 'C_INT_FAST8_T', 'C_INT_FAST16_T', 'C_INT_FAST32_T',
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'C_INT_FAST64_T', 'C_INTMAX_T', 'C_INTPTR_T', 'C_FLOAT', 'C_DOUBLE',
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'C_LONG_DOUBLE', 'C_FLOAT_COMPLEX', 'C_DOUBLE_COMPLEX',
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'C_LONG_DOUBLE_COMPLEX', 'C_BOOL', 'C_CHAR', 'C_PTR', 'C_FUNPTR'),
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prefix=r'\b', suffix=r'\s*\b'),
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Keyword.Type),
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# Operators
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(r'(\*\*|\*|\+|-|\/|<|>|<=|>=|==|\/=|=)', Operator),
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(r'(::)', Keyword.Declaration),
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(r'[()\[\],:&%;.]', Punctuation),
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# Intrinsics
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(words((
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'Abort', 'Abs', 'Access', 'AChar', 'ACos', 'ACosH', 'AdjustL',
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'AdjustR', 'AImag', 'AInt', 'Alarm', 'All', 'Allocated', 'ALog',
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'AMax', 'AMin', 'AMod', 'And', 'ANInt', 'Any', 'ASin', 'ASinH',
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'Associated', 'ATan', 'ATanH', 'Atomic_Define', 'Atomic_Ref',
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'BesJ', 'BesJN', 'Bessel_J0', 'Bessel_J1', 'Bessel_JN', 'Bessel_Y0',
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'Bessel_Y1', 'Bessel_YN', 'BesY', 'BesYN', 'BGE', 'BGT', 'BLE',
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'BLT', 'Bit_Size', 'BTest', 'CAbs', 'CCos', 'Ceiling', 'CExp',
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'Char', 'ChDir', 'ChMod', 'CLog', 'Cmplx', 'Command_Argument_Count',
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'Complex', 'Conjg', 'Cos', 'CosH', 'Count', 'CPU_Time', 'CShift',
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'CSin', 'CSqRt', 'CTime', 'C_Loc', 'C_Associated',
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'C_Null_Ptr', 'C_Null_Funptr', 'C_F_Pointer', 'C_F_ProcPointer',
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'C_Null_Char', 'C_Alert', 'C_Backspace', 'C_Form_Feed', 'C_FunLoc',
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'C_Sizeof', 'C_New_Line', 'C_Carriage_Return',
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'C_Horizontal_Tab', 'C_Vertical_Tab', 'DAbs', 'DACos', 'DASin',
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'DATan', 'Date_and_Time', 'DbesJ', 'DbesJN', 'DbesY',
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'DbesYN', 'Dble', 'DCos', 'DCosH', 'DDiM', 'DErF',
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'DErFC', 'DExp', 'Digits', 'DiM', 'DInt', 'DLog', 'DMax',
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'DMin', 'DMod', 'DNInt', 'Dot_Product', 'DProd', 'DSign', 'DSinH',
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'DShiftL', 'DShiftR', 'DSin', 'DSqRt', 'DTanH', 'DTan', 'DTime',
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'EOShift', 'Epsilon', 'ErF', 'ErFC', 'ErFC_Scaled', 'ETime',
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'Execute_Command_Line', 'Exit', 'Exp', 'Exponent', 'Extends_Type_Of',
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'FDate', 'FGet', 'FGetC', 'FindLoc', 'Float', 'Floor', 'Flush',
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'FNum', 'FPutC', 'FPut', 'Fraction', 'FSeek', 'FStat', 'FTell',
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'Gamma', 'GError', 'GetArg', 'Get_Command', 'Get_Command_Argument',
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'Get_Environment_Variable', 'GetCWD', 'GetEnv', 'GetGId', 'GetLog',
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'GetPId', 'GetUId', 'GMTime', 'HostNm', 'Huge', 'Hypot', 'IAbs',
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'IAChar', 'IAll', 'IAnd', 'IAny', 'IArgC', 'IBClr', 'IBits',
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'IBSet', 'IChar', 'IDate', 'IDiM', 'IDInt', 'IDNInt', 'IEOr',
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'IErrNo', 'IFix', 'Imag', 'ImagPart', 'Image_Index', 'Index',
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'Int', 'IOr', 'IParity', 'IRand', 'IsaTty', 'IShft', 'IShftC',
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'ISign', 'Iso_C_Binding', 'Is_Contiguous', 'Is_Iostat_End',
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'Is_Iostat_Eor', 'ITime', 'Kill', 'Kind', 'LBound', 'LCoBound',
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'Len', 'Len_Trim', 'LGe', 'LGt', 'Link', 'LLe', 'LLt', 'LnBlnk',
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'Loc', 'Log', 'Log_Gamma', 'Logical', 'Long', 'LShift', 'LStat',
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'LTime', 'MaskL', 'MaskR', 'MatMul', 'Max', 'MaxExponent',
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'MaxLoc', 'MaxVal', 'MClock', 'Merge', 'Merge_Bits', 'Move_Alloc',
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'Min', 'MinExponent', 'MinLoc', 'MinVal', 'Mod', 'Modulo', 'MvBits',
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'Nearest', 'New_Line', 'NInt', 'Norm2', 'Not', 'Null', 'Num_Images',
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'Or', 'Pack', 'Parity', 'PError', 'Precision', 'Present', 'Product',
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'Radix', 'Rand', 'Random_Number', 'Random_Seed', 'Range', 'Real',
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'RealPart', 'Rename', 'Repeat', 'Reshape', 'RRSpacing', 'RShift',
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'Same_Type_As', 'Scale', 'Scan', 'Second', 'Selected_Char_Kind',
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'Selected_Int_Kind', 'Selected_Real_Kind', 'Set_Exponent', 'Shape',
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'ShiftA', 'ShiftL', 'ShiftR', 'Short', 'Sign', 'Signal', 'SinH',
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'Sin', 'Sleep', 'Sngl', 'Spacing', 'Spread', 'SqRt', 'SRand',
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'Stat', 'Storage_Size', 'Sum', 'SymLnk', 'System', 'System_Clock',
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'Tan', 'TanH', 'Time', 'This_Image', 'Tiny', 'TrailZ', 'Transfer',
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'Transpose', 'Trim', 'TtyNam', 'UBound', 'UCoBound', 'UMask',
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'Unlink', 'Unpack', 'Verify', 'XOr', 'ZAbs', 'ZCos', 'ZExp',
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'ZLog', 'ZSin', 'ZSqRt'), prefix=r'\b', suffix=r'\s*\b'),
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Name.Builtin),
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# Booleans
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(r'\.(true|false)\.', Name.Builtin),
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# Comparing Operators
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(r'\.(eq|ne|lt|le|gt|ge|not|and|or|eqv|neqv)\.', Operator.Word),
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],
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'strings': [
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(r'"(\\[0-7]+|\\[^0-7]|[^"\\])*"', String.Double),
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(r"'(\\[0-7]+|\\[^0-7]|[^'\\])*'", String.Single),
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],
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'nums': [
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(r'\d+(?![.e])(_([1-9]|[a-z]\w*))?', Number.Integer),
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(r'[+-]?\d*\.\d+([ed][-+]?\d+)?(_([1-9]|[a-z]\w*))?', Number.Float),
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(r'[+-]?\d+\.\d*([ed][-+]?\d+)?(_([1-9]|[a-z]\w*))?', Number.Float),
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(r'[+-]?\d+(\.\d*)?[ed][-+]?\d+(_([1-9]|[a-z]\w*))?', Number.Float),
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],
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}
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class FortranFixedLexer(RegexLexer):
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"""
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Lexer for fixed format Fortran.
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.. versionadded:: 2.1
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"""
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name = 'FortranFixed'
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aliases = ['fortranfixed']
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filenames = ['*.f', '*.F']
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flags = re.IGNORECASE
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def _lex_fortran(self, match, ctx=None):
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"""Lex a line just as free form fortran without line break."""
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lexer = FortranLexer()
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text = match.group(0) + "\n"
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for index, token, value in lexer.get_tokens_unprocessed(text):
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value = value.replace('\n', '')
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if value != '':
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yield index, token, value
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tokens = {
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'root': [
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(r'[C*].*\n', Comment),
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(r'#.*\n', Comment.Preproc),
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(r' {0,4}!.*\n', Comment),
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(r'(.{5})', Name.Label, 'cont-char'),
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(r'.*\n', using(FortranLexer)),
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],
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'cont-char': [
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(' ', Text, 'code'),
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('0', Comment, 'code'),
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('.', Generic.Strong, 'code'),
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],
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'code': [
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(r'(.{66})(.*)(\n)',
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bygroups(_lex_fortran, Comment, Text.Whitespace), 'root'),
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(r'(.*)(\n)', bygroups(_lex_fortran, Text.Whitespace), 'root'),
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default('root'),
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]
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}
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