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/* $id$
$Locker: $ $Name: $ $State: Exp $
* Returns the position of the first '\n' or '\0' character;
* or NULL if the line overflows the buffer.
* "overflow" means that no '\n' character was found and the line
* is completely full, so, if the very last line has no newline character,
* it is still considered "not overflowed".
This file bases on MISC.C of FreeCOM v0.81 beta 1.
$Log: txtlend.c,v $
Revision 1.1 2001/04/12 00:33:53 skaus
chg: new structure
chg: If DEBUG enabled, no available commands are displayed on startup
fix: PTCHSIZE also patches min extra size to force to have this amount
of memory available on start
bugfix: CALL doesn't reset options
add: PTCHSIZE to patch heap size
add: VSPAWN, /SWAP switch, .SWP resource handling
bugfix: COMMAND.COM A:\
bugfix: CALL: if swapOnExec == ERROR, no change of swapOnExec allowed
add: command MEMORY
bugfix: runExtension(): destroys command[-2]
add: clean.bat
add: localized CRITER strings
chg: use LNG files for hard-coded strings (hangForEver(), init.c)
via STRINGS.LIB
add: DEL.C, COPY.C, CBREAK.C: STRINGS-based prompts
add: fixstrs.c: prompts & symbolic keys
add: fixstrs.c: backslash escape sequences
add: version IDs to DEFAULT.LNG and validation to FIXSTRS.C
chg: splitted code apart into LIB\*.c and CMD\*.c
bugfix: IF is now using error system & STRINGS to report errors
add: CALL: /N
*/
#include "../config.h"
#include <assert.h>
#include "../include/misc.h"
char *textlineEnd(const char * const buf, const size_t buflen)
{ const char *p, *end;
if(!buf) return 0;
end = buflen + (p = buf - 1);
do { if(++p == end) /* The very last byte of the buffer is
hit ==> there ougth to be a '\0' there
==> no '\n' AND no place for further
character ==> overflow */
return 0;
} while(*p && *p != '\n');
return (char *)p; /* strip "const" */
}
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