| Revision: | 2.8 |
| Committed: | Sun Mar 28 20:33:12 2004 UTC (20 years, 7 months ago) by schorsch |
| Content type: | text/plain |
| Branch: | MAIN |
| CVS Tags: | rad5R4, rad5R2, rad4R2P2, rad5R0, rad5R1, rad3R7P2, rad3R7P1, rad4R2, rad4R1, rad4R0, rad3R6, rad3R6P1, rad3R8, rad3R9, rad4R2P1, rad5R3 |
| Changes since 2.7: | +2 -2 lines |
| Log Message: | Continued ANSIfication, and other fixes and clarifications. |
| # | Content |
|---|---|
| 1 | #ifndef lint |
| 2 | static const char RCSid[] = "$Id: fgetval.c,v 2.7 2003/06/27 22:27:45 greg Exp $"; |
| 3 | #endif |
| 4 | /* |
| 5 | * Read white space separated values from stream |
| 6 | * |
| 7 | * External symbols declared in rtio.h |
| 8 | */ |
| 9 | |
| 10 | #include "rtio.h" |
| 11 | |
| 12 | #include <stdlib.h> |
| 13 | #include <math.h> |
| 14 | #include <ctype.h> |
| 15 | |
| 16 | int |
| 17 | fgetval(fp, ty, vp) /* get specified data word */ |
| 18 | register FILE *fp; |
| 19 | int ty; |
| 20 | void *vp; /* type depends on ty */ |
| 21 | { |
| 22 | char wrd[64]; |
| 23 | register char *cp; |
| 24 | register int c; |
| 25 | /* elide comments (# to EOL) */ |
| 26 | do { |
| 27 | while ((c = getc(fp)) != EOF && isspace(c)) |
| 28 | ; |
| 29 | if (c == '#') |
| 30 | while ((c = getc(fp)) != EOF && c != '\n') |
| 31 | ; |
| 32 | } while (c == '\n'); |
| 33 | if (c == EOF) |
| 34 | return(EOF); |
| 35 | /* get word */ |
| 36 | cp = wrd; |
| 37 | do { |
| 38 | *cp++ = c; |
| 39 | if (cp - wrd >= sizeof(wrd)) |
| 40 | return(0); |
| 41 | } while ((c = getc(fp)) != EOF && !isspace(c) && c != '#'); |
| 42 | if (c != EOF) |
| 43 | ungetc(c, fp); |
| 44 | *cp = '\0'; |
| 45 | switch (ty) { /* check and convert it */ |
| 46 | case 'h': /* short */ |
| 47 | if (!isint(wrd)) |
| 48 | return(0); |
| 49 | *(short *)vp = c = atoi(wrd); |
| 50 | if (*(short *)vp != c) |
| 51 | return(0); |
| 52 | return(1); |
| 53 | case 'i': /* integer */ |
| 54 | if (!isint(wrd)) |
| 55 | return(0); |
| 56 | *(int *)vp = atoi(wrd); |
| 57 | return(1); |
| 58 | case 'l': /* long */ |
| 59 | if (!isint(wrd)) |
| 60 | return(0); |
| 61 | *(long *)vp = atol(wrd); |
| 62 | return(1); |
| 63 | case 'f': /* float */ |
| 64 | if (!isflt(wrd)) |
| 65 | return(0); |
| 66 | *(float *)vp = atof(wrd); |
| 67 | return(1); |
| 68 | case 'd': /* double */ |
| 69 | if (!isflt(wrd)) |
| 70 | return(0); |
| 71 | *(double *)vp = atof(wrd); |
| 72 | return(1); |
| 73 | case 's': /* string */ |
| 74 | strcpy(vp, wrd); |
| 75 | return(1); |
| 76 | default: /* unsupported type */ |
| 77 | return(0); |
| 78 | } |
| 79 | } |