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/*
* Copyright (c) 1990 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND CARNEGIE MELLON UNIVERSITY
* DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT
* SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
* CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Users of this software agree to return to Carnegie Mellon any
* improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*
* Export of this software is permitted only after complying with the
* regulations of the U.S. Deptartment of Commerce relating to the
* Export of Technical Data.
*/
/* searcharg -- parse string from string table
*
* Usage: i = searcharg (ptr,brk,prompt,table,defalt);
* int i;
* char **ptr,*brk,*prompt,**table,*defalt;
*
* Searcharg parses an argument from the string pointed to by "ptr",
* and bumps ptr to point to the next argument in the string.
* The argument thus parsed is looked up in the string array
* "table", and its index is returned. If the argument is ambiguous
* or not found in the table, getsearch() is used to ask the user
* for a string and look it up.
* "Brk" is the list of characters which may terminate an argument;
* if 0, then " " is used.
*
* The string table might be declared this way:
* char *table[] {"one","two","three",0};
* The last entry must be a zero.
*
* HISTORY
* $Log: searcharg.c,v $
* Revision 1.2 90/12/11 17:58:26 mja
* Add copyright/disclaimer for distribution.
*
* 23-Jan-80 Steven Shafer (sas) at Carnegie-Mellon University
* Created.
*
*
*/
#include <libc.h>
int getsearch(),stabsearch();
char *nxtarg();
int searcharg (ptr,brk,prompt,table,defalt)
char **ptr,*brk,*prompt,**table,*defalt;
{
register char *arg;
register int i;
arg = nxtarg (ptr,brk); /* parse an argument */
fflush (stdout);
if (*arg) { /* if there's an argument */
i = stabsearch (arg,table,0);
}
else {
i = -1;
}
if (i < 0) i = getsearch (prompt,table,defalt);
return (i);
}
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