Text.Parsec.Char · parsec-3.1.18.0

valueoneOf :: Stream s m Char => [Char] -> ParsecT s u m Char

oneOf cs succeeds if the current character is in the supplied list of characters cs. Returns the parsed character. See also satisfy.

  vowel  = oneOf "aeiou"

valuenoneOf :: Stream s m Char => [Char] -> ParsecT s u m Char

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As the dual of oneOf, noneOf cs succeeds if the current character not in the supplied list of characters cs. Returns the parsed character.

 consonant = noneOf "aeiou"

valuespaces :: Stream s m Char => ParsecT s u m ()

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Skips zero or more white space characters. See also skipMany.

valuespace :: Stream s m Char => ParsecT s u m Char

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Parses a white space character (any character which satisfies isSpace) Returns the parsed character.

valuenewline :: Stream s m Char => ParsecT s u m Char

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Parses a newline character ('\n'). Returns a newline character.

valuecrlf :: Stream s m Char => ParsecT s u m Char

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Parses a carriage return character ('\r') followed by a newline character ('\n'). Returns a newline character.

valueendOfLine :: Stream s m Char => ParsecT s u m Char

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Parses a CRLF (see crlf) or LF (see newline) end-of-line. Returns a newline character ('\n').

endOfLine = newline <|> crlf

valuetab :: Stream s m Char => ParsecT s u m Char

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Parses a tab character ('\t'). Returns a tab character.

valueupper :: Stream s m Char => ParsecT s u m Char

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Parses an upper case letter (according to isUpper). Returns the parsed character.

valuelower :: Stream s m Char => ParsecT s u m Char

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Parses a lower case character (according to isLower). Returns the parsed character.

valuealphaNum :: Stream s m Char => ParsecT s u m Char

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Parses a alphabetic or numeric Unicode characters according to isAlphaNum. Returns the parsed character.

Note that numeric digits outside the ASCII range (such as arabic-indic digits like e.g. "٤" or U+0664), as well as numeric characters which aren't digits, are parsed by this function but not by digit.

valueletter :: Stream s m Char => ParsecT s u m Char

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Parses an alphabetic Unicode characters (lower-case, upper-case and title-case letters, plus letters of caseless scripts and modifiers letters according to isAlpha). Returns the parsed character.

valuedigit :: Stream s m Char => ParsecT s u m Char

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Parses an ASCII digit. Returns the parsed character.

valuehexDigit :: Stream s m Char => ParsecT s u m Char

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Parses a hexadecimal digit (a digit or a letter between 'a' and 'f' or 'A' and 'F'). Returns the parsed character.

valueoctDigit :: Stream s m Char => ParsecT s u m Char

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Parses an octal digit (a character between '0' and '7'). Returns the parsed character.

valuechar :: Stream s m Char => Char -> ParsecT s u m Char

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char c parses a single character c. Returns the parsed character (i.e. c).

 semiColon  = char ';'

valueanyChar :: Stream s m Char => ParsecT s u m Char

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This parser succeeds for any character. Returns the parsed character.

valuesatisfy :: Stream s m Char => (Char -> Bool) -> ParsecT s u m Char

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The parser satisfy f succeeds for any character for which the supplied function f returns True. Returns the character that is actually parsed.

valuestring :: Stream s m Char => String -> ParsecT s u m String

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string s parses a sequence of characters given by s. Returns the parsed string (i.e. s).

 divOrMod    =   string "div"
             <|> string "mod"

Consider using string'.

valuestring' :: Stream s m Char => String -> ParsecT s u m String

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string' s parses a sequence of characters given by s. Doesn't consume matching prefix.

 carOrCdr    =   string' "car"
             <|> string' "cdr"