Message-ID: <003701be81ec$a23e2800$46003bd4@default>
From: "Laurynas Biveinis" <lauras AT softhome DOT net>
To: <djgpp-workers AT delorie DOT com>
Subject: New fn isblank() in <ctype.h>
Date: Thu, 8 Apr 1999 20:01:54 +0200
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Reply-To: djgpp-workers AT delorie DOT com

It returns non-zero, if arg is ' ' or '\t'
Very small function - but requires
two patches and two new files:

File isblank.c:
---------------------
/* Copyright (C) 1999 Laurynas Biveinis, see COPYING.DJ for details */
#include <ctype.h>
#include <inlines/ctype.ha>

int (isblank)(int c)
{
  return isblank(c);
}
---------------------
File isblank.txh:
---------------------
@c ----------------------------------------------------------------------
@node isblank, ctype
@subheading Syntax

@example
#include <ctype.h>

int isalnum(int c);
@end example

@subheading Description

Tells if @var{c} is one of standard blank characters (space or horizontal
tab).

@subheading Return Value

Nonzero if @var{c} is a standard blank character, else zero.



@subheading Portability

@portability ansi, posix


---------------------------------------------------
*** ctype.h Wed Dec  7 02:02:10 1994
--- ctype2.h Thu Apr  8 18:21:40 1999
***************
*** 10,15 ****
--- 10,16 ----
  
  int isalnum(int c);
  int isalpha(int c);
+ int isblank(int c);
  int iscntrl(int c);
  int isdigit(int c);
  int isgraph(int c);

-----------------------------------------------------------
*** ct_flags.c Mon Jul 24 02:18:06 1995
--- ct_flags2.c Thu Apr  8 18:30:06 1999
***************
*** 13,19 ****
    __dj_ISCNTRL,           /* CTRL+F, 0x06 */
    __dj_ISCNTRL,           /* CTRL+G, 0x07 */
    __dj_ISCNTRL,           /* CTRL+H, 0x08 */
!   __dj_ISCNTRL | __dj_ISSPACE,         /* CTRL+I, 0x09 */
    __dj_ISCNTRL | __dj_ISSPACE,         /* CTRL+J, 0x0a */
    __dj_ISCNTRL | __dj_ISSPACE,         /* CTRL+K, 0x0b */
    __dj_ISCNTRL | __dj_ISSPACE,         /* CTRL+L, 0x0c */
--- 13,19 ----
    __dj_ISCNTRL,           /* CTRL+F, 0x06 */
    __dj_ISCNTRL,           /* CTRL+G, 0x07 */
    __dj_ISCNTRL,           /* CTRL+H, 0x08 */
!   __dj_ISCNTRL | __dj_ISSPACE | __dj_ISBLANK,       /* CTRL+I, 0x09 */
    __dj_ISCNTRL | __dj_ISSPACE,         /* CTRL+J, 0x0a */
    __dj_ISCNTRL | __dj_ISSPACE,         /* CTRL+K, 0x0b */
    __dj_ISCNTRL | __dj_ISSPACE,         /* CTRL+L, 0x0c */
***************
*** 36,42 ****
    __dj_ISCNTRL,           /* CTRL+], 0x1d */
    __dj_ISCNTRL,           /* CTRL+^, 0x1e */
    __dj_ISCNTRL,           /* CTRL+_, 0x1f */
!   __dj_ISPRINT | __dj_ISSPACE,         /* ` ', 0x20 */
    __dj_ISGRAPH | __dj_ISPRINT | __dj_ISPUNCT,       /* `!', 0x21 */
    __dj_ISGRAPH | __dj_ISPRINT | __dj_ISPUNCT,       /* 0x22 */
    __dj_ISGRAPH | __dj_ISPRINT | __dj_ISPUNCT,       /* `#', 0x23 */
--- 36,42 ----
    __dj_ISCNTRL,           /* CTRL+], 0x1d */
    __dj_ISCNTRL,           /* CTRL+^, 0x1e */
    __dj_ISCNTRL,           /* CTRL+_, 0x1f */
!   __dj_ISPRINT | __dj_ISSPACE | __dj_ISBLANK,       /* ` ', 0x20 */
    __dj_ISGRAPH | __dj_ISPRINT | __dj_ISPUNCT,       /* `!', 0x21 */
    __dj_ISGRAPH | __dj_ISPRINT | __dj_ISPUNCT,       /* 0x22 */
    __dj_ISGRAPH | __dj_ISPRINT | __dj_ISPUNCT,       /* `#', 0x23 */