projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 2b1a705e TL |
1 | # include "stdio.h" |
| 2 | # include "assert.h" | |
| 3 | # define unopen(fil) {if (fil!=NULL) {fclose(fil); fil=NULL;}} | |
| 4 | extern long indexdate, gdate(); | |
| 5 | extern FILE *iopen(); | |
| 6 | runbib (s) | |
| 7 | char *s; | |
| 8 | { | |
| 9 | /* make a file suitable for fgrep */ | |
| 10 | char tmp[200]; | |
| 11 | sprintf(tmp, "/usr/lib/refer/mkey %s >%s.ig", s,s); | |
| 12 | system(tmp); | |
| 13 | } | |
| 14 | makefgrep(indexname) | |
| 15 | char *indexname; | |
| 16 | { | |
| 17 | FILE *fa, *fb; | |
| 18 | if (ckexist(indexname, ".ig")) | |
| 19 | { | |
| 20 | /* existing gfrep -type index */ | |
| 21 | # if D1 | |
| 22 | fprintf(stderr, "found fgrep\n"); | |
| 23 | # endif | |
| 24 | fa = iopen(indexname, ".ig"); | |
| 25 | fb = iopen(indexname, ""); | |
| 26 | if (gdate(fb)>gdate(fa)) | |
| 27 | { | |
| 28 | fclose(fa); | |
| 29 | runbib(indexname); | |
| 30 | fa= iopen(indexname, ".ig"); | |
| 31 | } | |
| 32 | indexdate = gdate(fa); | |
| 33 | unopen(fa); unopen(fb); | |
| 34 | } | |
| 35 | else | |
| 36 | if (ckexist(indexname, "")) | |
| 37 | { | |
| 38 | /* make fgrep */ | |
| 39 | # if D1 | |
| 40 | fprintf(stderr, "make fgrep\n"); | |
| 41 | # endif | |
| 42 | runbib(indexname); | |
| 43 | time(&indexdate); | |
| 44 | unopen(fb); | |
| 45 | } | |
| 46 | else /* failure */ | |
| 47 | return(0); | |
| 48 | return(1); /* success */ | |
| 49 | } | |
| 50 | ckexist(s, t) | |
| 51 | char *s, *t; | |
| 52 | { | |
| 53 | char fnam[100]; | |
| 54 | strcpy (fnam, s); | |
| 55 | strcat (fnam, t); | |
| 56 | return (access(fnam, 04) != -1); | |
| 57 | } | |
| 58 | FILE * | |
| 59 | iopen (s, t) | |
| 60 | char *s, *t; | |
| 61 | { | |
| 62 | char fnam[100]; | |
| 63 | FILE *f; | |
| 64 | strcpy (fnam, s); | |
| 65 | strcat (fnam, t); | |
| 66 | f = fopen (fnam, "r"); | |
| 67 | if (f == NULL) | |
| 68 | { | |
| 69 | err("Missing expected file %s", fnam); | |
| 70 | exit(1); | |
| 71 | } | |
| 72 | return(f); | |
| 73 | } |