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- /*
- * Copyright (c) 1980 Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
- #ifndef lint
- static char sccsid[] = "@(#)getpar.c 4.8 (Berkeley) 6/1/90";
- #endif /* not lint */
-
- # include <stdio.h>
- # include "getpar.h"
-
- /**
- ** get integer parameter
- **/
-
- getintpar(s)
- char *s;
- {
- register int i;
- int n;
-
- while (1)
- {
- if (testnl() && s)
- printf("%s: ", s);
- i = scanf("%d", &n);
- if (i < 0)
- exit(1);
- if (i > 0 && testterm())
- return (n);
- printf("invalid input; please enter an integer\n");
- skiptonl(0);
- }
- }
-
- /**
- ** get floating parameter
- **/
-
- double getfltpar(s)
- char *s;
- {
- register int i;
- double d;
-
- while (1)
- {
- if (testnl() && s)
- printf("%s: ", s);
- i = scanf("%lf", &d);
- if (i < 0)
- exit(1);
- if (i > 0 && testterm())
- return (d);
- printf("invalid input; please enter a double\n");
- skiptonl(0);
- }
- }
-
- /**
- ** get yes/no parameter
- **/
-
- struct cvntab Yntab[] =
- {
- "y", "es", (int (*)())1, 0,
- "n", "o", (int (*)())0, 0,
- 0
- };
-
- getynpar(s)
- char *s;
- {
- struct cvntab *r;
-
- r = getcodpar(s, Yntab);
- return ((int) r->value);
- }
-
-
- /**
- ** get coded parameter
- **/
-
- struct cvntab *getcodpar(s, tab)
- char *s;
- struct cvntab tab[];
- {
- char input[100];
- register struct cvntab *r;
- int flag;
- register char *p, *q;
- int c;
- int f;
-
- flag = 0;
- while (1)
- {
- flag |= (f = testnl());
- if (flag)
- printf("%s: ", s);
- if (f)
- cgetc(0); /* throw out the newline */
- scanf("%*[ \t;]");
- if ((c = scanf("%[^ \t;\n]", input)) < 0)
- exit(1);
- if (c == 0)
- continue;
- flag = 1;
-
- /* if command list, print four per line */
- if (input[0] == '?' && input[1] == 0)
- {
- c = 4;
- for (r = tab; r->abrev; r++)
- {
- concat(r->abrev, r->full, input);
- printf("%14.14s", input);
- if (--c > 0)
- continue;
- c = 4;
- printf("\n");
- }
- if (c != 4)
- printf("\n");
- continue;
- }
-
- /* search for in table */
- for (r = tab; r->abrev; r++)
- {
- p = input;
- for (q = r->abrev; *q; q++)
- if (*p++ != *q)
- break;
- if (!*q)
- {
- for (q = r->full; *p && *q; q++, p++)
- if (*p != *q)
- break;
- if (!*p || !*q)
- break;
- }
- }
-
- /* check for not found */
- if (!r->abrev)
- {
- printf("invalid input; ? for valid inputs\n");
- skiptonl(0);
- }
- else
- return (r);
- }
- }
-
-
- /**
- ** get string parameter
- **/
-
- getstrpar(s, r, l, t)
- char *s;
- char *r;
- int l;
- char *t;
- {
- register int i;
- char format[20];
- register int f;
-
- if (t == 0)
- t = " \t\n;";
- (void)sprintf(format, "%%%d[^%s]", l, t);
- while (1)
- {
- if ((f = testnl()) && s)
- printf("%s: ", s);
- if (f)
- cgetc(0);
- scanf("%*[\t ;]");
- i = scanf(format, r);
- if (i < 0)
- exit(1);
- if (i != 0)
- return;
- }
- }
-
-
- /**
- ** test if newline is next valid character
- **/
-
- testnl()
- {
- register char c;
-
- while ((c = cgetc(0)) != '\n')
- if ((c >= '0' && c <= '9') || c == '.' || c == '!' ||
- (c >= 'A' && c <= 'Z') ||
- (c >= 'a' && c <= 'z') || c == '-')
- {
- ungetc(c, stdin);
- return(0);
- }
- ungetc(c, stdin);
- return (1);
- }
-
-
- /**
- ** scan for newline
- **/
-
- skiptonl(c)
- char c;
- {
- while (c != '\n')
- if (!(c = cgetc(0)))
- return;
- ungetc('\n', stdin);
- return;
- }
-
-
- /**
- ** test for valid terminator
- **/
-
- testterm()
- {
- register char c;
-
- if (!(c = cgetc(0)))
- return (1);
- if (c == '.')
- return (0);
- if (c == '\n' || c == ';')
- ungetc(c, stdin);
- return (1);
- }
-
-
- /*
- ** TEST FOR SPECIFIED DELIMETER
- **
- ** The standard input is scanned for the parameter. If found,
- ** it is thrown away and non-zero is returned. If not found,
- ** zero is returned.
- */
-
- readdelim(d)
- char d;
- {
- register char c;
-
- while (c = cgetc(0))
- {
- if (c == d)
- return (1);
- if (c == ' ')
- continue;
- ungetc(c, stdin);
- break;
- }
- return (0);
- }
-