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| # ----------------------------------------------------------------------
| # ctokens.py
| #
| # Token specifications for symbols in ANSI C and C++. This file is
| # meant to be used as a library in other tokenizers.
| # ----------------------------------------------------------------------
|
| # Reserved words
|
| tokens = [
| # Literals (identifier, integer constant, float constant, string constant, char const)
| 'ID', 'TYPEID', 'INTEGER', 'FLOAT', 'STRING', 'CHARACTER',
|
| # Operators (+,-,*,/,%,|,&,~,^,<<,>>, ||, &&, !, <, <=, >, >=, ==, !=)
| 'PLUS', 'MINUS', 'TIMES', 'DIVIDE', 'MODULO',
| 'OR', 'AND', 'NOT', 'XOR', 'LSHIFT', 'RSHIFT',
| 'LOR', 'LAND', 'LNOT',
| 'LT', 'LE', 'GT', 'GE', 'EQ', 'NE',
|
| # Assignment (=, *=, /=, %=, +=, -=, <<=, >>=, &=, ^=, |=)
| 'EQUALS', 'TIMESEQUAL', 'DIVEQUAL', 'MODEQUAL', 'PLUSEQUAL', 'MINUSEQUAL',
| 'LSHIFTEQUAL','RSHIFTEQUAL', 'ANDEQUAL', 'XOREQUAL', 'OREQUAL',
|
| # Increment/decrement (++,--)
| 'INCREMENT', 'DECREMENT',
|
| # Structure dereference (->)
| 'ARROW',
|
| # Ternary operator (?)
| 'TERNARY',
|
| # Delimeters ( ) [ ] { } , . ; :
| 'LPAREN', 'RPAREN',
| 'LBRACKET', 'RBRACKET',
| 'LBRACE', 'RBRACE',
| 'COMMA', 'PERIOD', 'SEMI', 'COLON',
|
| # Ellipsis (...)
| 'ELLIPSIS',
| ]
|
| # Operators
| t_PLUS = r'\+'
| t_MINUS = r'-'
| t_TIMES = r'\*'
| t_DIVIDE = r'/'
| t_MODULO = r'%'
| t_OR = r'\|'
| t_AND = r'&'
| t_NOT = r'~'
| t_XOR = r'\^'
| t_LSHIFT = r'<<'
| t_RSHIFT = r'>>'
| t_LOR = r'\|\|'
| t_LAND = r'&&'
| t_LNOT = r'!'
| t_LT = r'<'
| t_GT = r'>'
| t_LE = r'<='
| t_GE = r'>='
| t_EQ = r'=='
| t_NE = r'!='
|
| # Assignment operators
|
| t_EQUALS = r'='
| t_TIMESEQUAL = r'\*='
| t_DIVEQUAL = r'/='
| t_MODEQUAL = r'%='
| t_PLUSEQUAL = r'\+='
| t_MINUSEQUAL = r'-='
| t_LSHIFTEQUAL = r'<<='
| t_RSHIFTEQUAL = r'>>='
| t_ANDEQUAL = r'&='
| t_OREQUAL = r'\|='
| t_XOREQUAL = r'\^='
|
| # Increment/decrement
| t_INCREMENT = r'\+\+'
| t_DECREMENT = r'--'
|
| # ->
| t_ARROW = r'->'
|
| # ?
| t_TERNARY = r'\?'
|
| # Delimeters
| t_LPAREN = r'\('
| t_RPAREN = r'\)'
| t_LBRACKET = r'\['
| t_RBRACKET = r'\]'
| t_LBRACE = r'\{'
| t_RBRACE = r'\}'
| t_COMMA = r','
| t_PERIOD = r'\.'
| t_SEMI = r';'
| t_COLON = r':'
| t_ELLIPSIS = r'\.\.\.'
|
| # Identifiers
| t_ID = r'[A-Za-z_][A-Za-z0-9_]*'
|
| # Integer literal
| t_INTEGER = r'\d+([uU]|[lL]|[uU][lL]|[lL][uU])?'
|
| # Floating literal
| t_FLOAT = r'((\d+)(\.\d+)(e(\+|-)?(\d+))? | (\d+)e(\+|-)?(\d+))([lL]|[fF])?'
|
| # String literal
| t_STRING = r'\"([^\\\n]|(\\.))*?\"'
|
| # Character constant 'c' or L'c'
| t_CHARACTER = r'(L)?\'([^\\\n]|(\\.))*?\''
|
| # Comment (C-Style)
| def t_COMMENT(t):
| r'/\*(.|\n)*?\*/'
| t.lexer.lineno += t.value.count('\n')
| return t
|
| # Comment (C++-Style)
| def t_CPPCOMMENT(t):
| r'//.*\n'
| t.lexer.lineno += 1
| return t
|
|
|
|
|
