| 1 |
greg |
2.1 |
#ifndef lint
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| 2 |
schorsch |
2.5 |
static const char RCSid[] = "$Id: fgetval.c,v 2.4 2003/02/25 02:47:21 greg Exp $";
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| 3 |
greg |
2.1 |
#endif
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| 4 |
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/*
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| 5 |
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* Read white space separated values from stream
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| 6 |
greg |
2.3 |
*
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| 7 |
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* External symbols declared in standard.h
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| 8 |
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*/
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| 9 |
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| 10 |
greg |
2.4 |
#include "copyright.h"
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| 11 |
greg |
2.1 |
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| 12 |
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#include <stdio.h>
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| 13 |
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#include <math.h>
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| 14 |
greg |
2.3 |
#include <stdlib.h>
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| 15 |
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#include <string.h>
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| 16 |
greg |
2.1 |
#include <ctype.h>
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| 17 |
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| 18 |
schorsch |
2.5 |
#include "standard.h"
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| 19 |
greg |
2.1 |
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| 20 |
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int
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| 21 |
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fgetval(fp, ty, vp) /* get specified data word */
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| 22 |
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register FILE *fp;
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| 23 |
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int ty;
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| 24 |
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char *vp;
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| 25 |
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{
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| 26 |
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char wrd[64];
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| 27 |
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register char *cp;
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| 28 |
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register int c;
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| 29 |
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/* elide comments (# to EOL) */
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| 30 |
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do {
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| 31 |
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while ((c = getc(fp)) != EOF && isspace(c))
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| 32 |
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;
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| 33 |
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if (c == '#')
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| 34 |
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while ((c = getc(fp)) != EOF && c != '\n')
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| 35 |
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;
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| 36 |
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} while (c == '\n');
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| 37 |
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if (c == EOF)
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| 38 |
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return(EOF);
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| 39 |
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/* get word */
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| 40 |
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cp = wrd;
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| 41 |
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do {
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| 42 |
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*cp++ = c;
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| 43 |
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if (cp - wrd >= sizeof(wrd))
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| 44 |
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return(0);
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| 45 |
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} while ((c = getc(fp)) != EOF && !isspace(c) && c != '#');
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| 46 |
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if (c != EOF)
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| 47 |
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ungetc(c, fp);
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| 48 |
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*cp = '\0';
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| 49 |
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switch (ty) { /* check and convert it */
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| 50 |
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case 'h': /* short */
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| 51 |
greg |
2.2 |
if (!isint(wrd))
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| 52 |
greg |
2.1 |
return(0);
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| 53 |
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*(short *)vp = c = atoi(wrd);
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| 54 |
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if (*(short *)vp != c)
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| 55 |
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return(0);
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| 56 |
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return(1);
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| 57 |
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case 'i': /* integer */
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| 58 |
greg |
2.2 |
if (!isint(wrd))
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| 59 |
greg |
2.1 |
return(0);
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| 60 |
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*(int *)vp = atoi(wrd);
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| 61 |
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return(1);
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| 62 |
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case 'l': /* long */
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| 63 |
greg |
2.2 |
if (!isint(wrd))
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| 64 |
greg |
2.1 |
return(0);
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| 65 |
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*(long *)vp = atol(wrd);
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| 66 |
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return(1);
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| 67 |
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case 'f': /* float */
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| 68 |
greg |
2.2 |
if (!isflt(wrd))
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| 69 |
greg |
2.1 |
return(0);
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| 70 |
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*(float *)vp = atof(wrd);
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| 71 |
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return(1);
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| 72 |
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case 'd': /* double */
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| 73 |
greg |
2.2 |
if (!isflt(wrd))
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| 74 |
greg |
2.1 |
return(0);
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| 75 |
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*(double *)vp = atof(wrd);
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| 76 |
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return(1);
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| 77 |
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case 's': /* string */
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| 78 |
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strcpy(vp, wrd);
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| 79 |
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return(1);
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| 80 |
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default: /* unsupported type */
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| 81 |
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return(0);
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| 82 |
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}
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| 83 |
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}
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