ctype.c File Reference

ctype(3) wrapper functions More...

#include <ctype.h>
#include <stdbool.h>

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Functions
bool	mutt_isalnum (int arg)
	Wrapper for isalnum(3).
bool	mutt_isalpha (int arg)
	Wrapper for isalpha(3).
bool	mutt_isdigit (int arg)
	Wrapper for isdigit(3).
bool	mutt_ispunct (int arg)
	Wrapper for ispunct(3).
bool	mutt_isspace (int arg)
	Wrapper for isspace(3).
bool	mutt_isxdigit (int arg)
	Wrapper for isxdigit(3).
int	mutt_tolower (int arg)
	Wrapper for tolower(3).
int	mutt_toupper (int arg)
	Wrapper for toupper(3).

Detailed Description

ctype(3) wrapper functions

Authors

• Thomas Klausner
• Richard Russon

Copyright

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.

Definition in file ctype.c.

Function Documentation

mutt_isalnum()

bool mutt_isalnum

(

int

arg

)

Wrapper for isalnum(3).

Parameters

arg	Character to test

Return values

true	Character is alphanumeric

Definition at line 40 of file ctype.c.

{
  if (isascii(arg))
    return isalnum(arg);
 
  return false;
}

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mutt_isalpha()

bool mutt_isalpha

(

int

arg

)

Wrapper for isalpha(3).

Parameters

arg	Character to test

Return values

true	Character is alphabetic

Definition at line 53 of file ctype.c.

{
  if (isascii(arg))
    return isalpha(arg);
 
  return false;
}

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mutt_isdigit()

bool mutt_isdigit

(

int

arg

)

Wrapper for isdigit(3).

Parameters

arg	Character to test

Return values

true	Character is a digit (0 through 9)

Definition at line 66 of file ctype.c.

{
  if (isascii(arg))
    return isdigit(arg);
 
  return false;
}

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mutt_ispunct()

bool mutt_ispunct

(

int

arg

)

Wrapper for ispunct(3).

Parameters

arg	Character to test

Return values

true	Character is printable but is not a space or alphanumeric

Definition at line 79 of file ctype.c.

{
  if (isascii(arg))
    return ispunct(arg);
 
  return false;
}

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mutt_isspace()

bool mutt_isspace

(

int

arg

)

Wrapper for isspace(3).

Parameters

arg	Character to test

Return values

true	Character is white-space

In the "C" and "POSIX" locales, these are: space, form-feed ('\f'), newline ('\n'), carriage return ('\r'), horizontal tab ('\t'), and vertical tab ('\v').

Definition at line 96 of file ctype.c.

{
  if (isascii(arg))
    return isspace(arg);
 
  return false;
}

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mutt_isxdigit()

bool mutt_isxdigit

(

int

arg

)

Wrapper for isxdigit(3).

Parameters

arg	Character to test

Return values

true	Character is a hexadecimal digits

That is, one of 0 1 2 3 4 5 6 7 8 9 a b c d e f A B C D E F.

Definition at line 111 of file ctype.c.

{
  if (isascii(arg))
    return isxdigit(arg);
 
  return false;
}

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mutt_tolower()

int mutt_tolower

(

int

arg

)

Wrapper for tolower(3).

Parameters

arg	Character to lowercase

Return values

num	Success: Lower-case character
arg	Failure: Original character

Definition at line 125 of file ctype.c.

{
  if (isascii(arg))
    return tolower(arg);
 
  return arg;
}

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mutt_toupper()

int mutt_toupper

(

int

arg

)

Wrapper for toupper(3).

Parameters

arg	Character to uppercase

Return values

num	Success: Upper-case character
arg	Failure: Original character

Definition at line 139 of file ctype.c.

{
  if (isascii(arg))
    return toupper(arg);
 
  return arg;
}

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