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/* $id$
$Locker: $ $Name: $ $State: Exp $
* split - splits a line up into separate arguments, deliminators
* are spaces and /'s
* Each option is placed into one individual argument.
* The passed in string is preserved.
This file bases on CMDLINE.C of FreeCOM v0.81 beta 1.
$Log: split.c,v $
Revision 1.2 2003/03/09 12:09:40 skaus
bugfix: split(): out-of-mem condition during building argument array
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 <stdlib.h>
#include "../include/cmdline.h"
static int addArg(char ***Xarg, int *argc, char *sBeg, char **sEnd)
{ char **arg;
assert(Xarg);
assert(argc);
assert(sEnd);
assert(sBeg);
*sEnd = skip_word(sBeg); /* find end of argument */
/* Because *start != '\0' && !isargdelim(*start) ==> s != start */
assert(*sEnd > sBeg);
/* add new entry for new argument */
if((arg = realloc(*Xarg, (*argc + 2) * sizeof(char *))) == 0) {
freep(*Xarg);
return 1;
}
/* create new entry */
if((arg[*argc] = unquote(sBeg, *sEnd)) == 0) {
freep(arg);
return 1;
}
arg[++*argc] = 0; /* keep it a correct argv[] array if a freep()
is triggered above */
*Xarg = arg;
return 0;
}
char **split(char *s, int *args)
{
char **arg,
*start;
int ac;
assert(args);
arg = malloc(sizeof(char *));
if (!arg)
return 0;
ac = 0;
/* skip to next argument */
if(s) while (*(start = skipdm(s)) != '\0')
{
if(addArg(&arg, &ac, start, &s))
return 0;
}
arg[*args = ac] = 0;
return arg;
}
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