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/* $id$
$Locker: $ $Name: $ $State: Exp $
* Perform an option check and parse value for integer
This file bases on CMDLINE.C of FreeCOM v0.81 beta 1.
$Log: optsi.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 <ctype.h>
#include <stdio.h>
#include "../include/command.h"
#include "../include/cmdline.h"
#include "../err_fcts.h"
#pragma argsused
int optScanInteger_(const char * const optstr, int bool, const char *arg, int *value)
{ int v;
assert(optstr);
assert(value);
if(!arg || !*arg) {
error_opt_noarg(optstr);
return E_Useage;
}
v = 0;
--arg;
while(isdigit(*++arg))
v = v * 10 + *arg - '0';
if(*arg) {
error_invalid_number(optstr);
return E_Useage;
}
*value = v;
return 0;
}
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