Module pyparsing :: Class Regex |
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# Class Regex

source code

       object --+
                |
    ParserElement --+
                    |
                Token --+
                        |
                       Regex

Token for matching strings that match a given regular expression. Defined with string specifying the regular expression in a form recognized by the inbuilt Python re module. If the given regex contains named groups (defined using `(?P<name>...)`), these will be preserved as named parse results.

Example:

       realnum = Regex(r"[+-]?\d+\.\d*")
       date = Regex(r'(?P<year>\d{4})-(?P<month>\d\d)-(?P<day>\d\d)')
       # ref: http://stackoverflow.com/questions/267399/how-do-you-match-only-valid-roman-numerals-with-a-regular-expression
       roman = Regex(r"M{0,4}(CM|CD|D?C{0,3})(XC|XL|L?X{0,3})(IX|IV|V?I{0,3})")

Nested Classes
| compiledREtype Compiled regular expression objects

Instance Methods
__init__(self, pattern, flags=0) The parameters `pattern` and `flags` are passed to the `re.compile()` function as-is. | source code
parseImpl(self, instring, loc, doActions=True) | source code
__str__(self) str(x) | source code
Inherited from `ParserElement`: `__add__`, `__and__`, `__call__`, `__eq__`, `__hash__`, `__invert__`, `__mul__`, `__ne__`, `__or__`, `__radd__`, `__rand__`, `__repr__`, `__req__`, `__rmul__`, `__rne__`, `__ror__`, `__rsub__`, `__rxor__`, `__sub__`, `__xor__`, `addCondition`, `addParseAction`, `canParseNext`, `checkRecursion`, `copy`, `ignore`, `leaveWhitespace`, `matches`, `parseFile`, `parseString`, `parseWithTabs`, `postParse`, `preParse`, `runTests`, `scanString`, `searchString`, `setBreak`, `setDebug`, `setDebugActions`, `setFailAction`, `setName`, `setParseAction`, `setResultsName`, `setWhitespaceChars`, `split`, `streamline`, `suppress`, `transformString`, `tryParse`, `validate` Inherited from `object`: `__delattr__`, `__format__`, `__getattribute__`, `__new__`, `__reduce__`, `__reduce_ex__`, `__setattr__`, `__sizeof__`, `__subclasshook__`

Static Methods
Inherited from `ParserElement`: `enablePackrat`, `inlineLiteralsUsing`, `resetCache`, `setDefaultWhitespaceChars`

Class Variables
| __slotnames__ = ``[``]``
Inherited from `ParserElement`: `DEFAULT_WHITE_CHARS`, `packrat_cache`, `packrat_cache_lock`, `packrat_cache_stats`, `verbose_stacktrace`

Properties
Inherited from `object`: `__class__`

Method Details

### __init__(self, pattern, flags=0) (Constructor) | source code
The parameters `pattern` and `flags` are passed to the `re.compile()` function as-is. See the Python `re` module for an explanation of the acceptable patterns and flags. Overrides: object.__init__

### parseImpl(self, instring, loc, doActions=True) | source code
Overrides: ParserElement.parseImpl

### __str__(self) (Informal representation operator) | source code
str(x) Overrides: object.__str__ (inherited documentation)