+++ /dev/null
-#include <amanda.h>
-#include <stdio.h>
-#include <string.h>
-
-/*
- - split - divide a string into fields, like awk split()
- = int split(char *string, char *fields[], int nfields, char *sep);
- */
-int /* number of fields, including overflow */
-split(
- char * string,
- char * fields[], /* list is not NULL-terminated */
- int nfields, /* number of entries available in fields[] */
- char * sep) /* "" white, "c" single char, "ab" [ab]+ */
-{
- register char *p = string;
- register char c; /* latest character */
- register char sepc = sep[0];
- register char sepc2;
- register int fn;
- register char **fp = fields;
- register char *sepp;
- register int trimtrail;
-
- /* white space */
- if (sepc == '\0') {
- while ((c = *p++) == ' ' || c == '\t')
- continue;
- p--;
- trimtrail = 1;
- sep = " \t"; /* note, code below knows this is 2 long */
- sepc = ' ';
- } else
- trimtrail = 0;
- sepc2 = sep[1]; /* now we can safely pick this up */
-
- /* catch empties */
- if (*p == '\0')
- return(0);
-
- /* single separator */
- if (sepc2 == '\0') {
- fn = nfields;
- for (;;) {
- *fp++ = p;
- fn--;
- if (fn == 0)
- break;
- while ((c = *p++) != sepc)
- if (c == '\0')
- return(nfields - fn);
- *(p-1) = '\0';
- }
- /* we have overflowed the fields vector -- just count them */
- fn = nfields;
- for (;;) {
- while ((c = *p++) != sepc)
- if (c == '\0')
- return(fn);
- fn++;
- }
- /* not reached */
- }
-
- /* two separators */
- if (sep[2] == '\0') {
- fn = nfields;
- for (;;) {
- *fp++ = p;
- fn--;
- while ((c = *p++) != sepc && c != sepc2)
- if (c == '\0') {
- if (trimtrail && **(fp-1) == '\0')
- fn++;
- return(nfields - fn);
- }
- if (fn == 0)
- break;
- *(p-1) = '\0';
- while ((c = *p++) == sepc || c == sepc2)
- continue;
- p--;
- }
- /* we have overflowed the fields vector -- just count them */
- fn = nfields;
- while (c != '\0') {
- while ((c = *p++) == sepc || c == sepc2)
- continue;
- p--;
- fn++;
- while ((c = *p++) != '\0' && c != sepc && c != sepc2)
- continue;
- }
- /* might have to trim trailing white space */
- if (trimtrail) {
- p--;
- while ((c = *--p) == sepc || c == sepc2)
- continue;
- p++;
- if (*p != '\0') {
- if (fn == nfields+1)
- *p = '\0';
- fn--;
- }
- }
- return(fn);
- }
-
- /* n separators */
- fn = 0;
- for (;;) {
- if (fn < nfields)
- *fp++ = p;
- fn++;
- for (;;) {
- c = *p++;
- if (c == '\0')
- return(fn);
- sepp = sep;
- while ((sepc = *sepp++) != '\0' && sepc != c)
- continue;
- if (sepc != '\0') /* it was a separator */
- break;
- }
- if (fn < nfields)
- *(p-1) = '\0';
- for (;;) {
- c = *p++;
- sepp = sep;
- while ((sepc = *sepp++) != '\0' && sepc != c)
- continue;
- if (sepc == '\0') /* it wasn't a separator */
- break;
- }
- p--;
- }
-
- /* not reached */
-}
-
-#ifdef TEST_SPLIT
-
-
-/*
- * test program
- * pgm runs regression
- * pgm sep splits stdin lines by sep
- * pgm str sep splits str by sep
- * pgm str sep n splits str by sep n times
- */
-int
-main(
- int argc,
- char * argv[])
-{
- char buf[512];
- register int n;
-# define MNF 10
- char *fields[MNF];
-
- if (argc > 4)
- for (n = atoi(argv[3]); n > 0; n--) {
- strncpy(buf, argv[1], SIZEOF(buf)-1);
- buf[SIZEOF(buf)-1] = '\0';
- }
- else if (argc > 3)
- for (n = atoi(argv[3]); n > 0; n--) {
- strncpy(buf, argv[1], SIZEOF(buf)-1);
- buf[SIZEOF(buf)-1] = '\0';
- (void) split(buf, fields, MNF, argv[2]);
- }
- else if (argc > 2)
- dosplit(argv[1], argv[2]);
- else if (argc > 1)
- while (fgets(buf, (int)sizeof(buf), stdin) != NULL) {
- buf[strlen(buf)-1] = '\0'; /* stomp newline */
- dosplit(buf, argv[1]);
- }
- else
- regress();
-
- exit(0);
-}
-
-int
-dosplit(
- char * string,
- char * seps)
-{
-# define NF 5
- char *fields[NF];
- register int nf;
-
- nf = split(string, fields, NF, seps);
- print(nf, NF, fields);
-}
-
-int
-print(
- int nf,
- int nfp,
- char *fields[])
-{
- register int fn;
- register int bound;
-
- bound = (nf > nfp) ? nfp : nf;
- printf("%d:\t", nf);
- for (fn = 0; fn < bound; fn++)
- printf("\"%s\"%s", fields[fn], (fn+1 < nf) ? ", " : "\n");
-}
-
-#define RNF 5 /* some table entries know this */
-struct {
- char *str;
- char *seps;
- int nf;
- char *fi[RNF];
-} tests[] = {
- "", " ", 0, { "" },
- " ", " ", 2, { "", "" },
- "x", " ", 1, { "x" },
- "xy", " ", 1, { "xy" },
- "x y", " ", 2, { "x", "y" },
- "abc def g ", " ", 5, { "abc", "def", "", "g", "" },
- " a bcd", " ", 4, { "", "", "a", "bcd" },
- "a b c d e f", " ", 6, { "a", "b", "c", "d", "e f" },
- " a b c d ", " ", 6, { "", "a", "b", "c", "d " },
-
- "", " _", 0, { "" },
- " ", " _", 2, { "", "" },
- "x", " _", 1, { "x" },
- "x y", " _", 2, { "x", "y" },
- "ab _ cd", " _", 2, { "ab", "cd" },
- " a_b c ", " _", 5, { "", "a", "b", "c", "" },
- "a b c_d e f", " _", 6, { "a", "b", "c", "d", "e f" },
- " a b c d ", " _", 6, { "", "a", "b", "c", "d " },
-
- "", " _~", 0, { "" },
- " ", " _~", 2, { "", "" },
- "x", " _~", 1, { "x" },
- "x y", " _~", 2, { "x", "y" },
- "ab _~ cd", " _~", 2, { "ab", "cd" },
- " a_b c~", " _~", 5, { "", "a", "b", "c", "" },
- "a b_c d~e f", " _~", 6, { "a", "b", "c", "d", "e f" },
- "~a b c d ", " _~", 6, { "", "a", "b", "c", "d " },
-
- "", " _~-", 0, { "" },
- " ", " _~-", 2, { "", "" },
- "x", " _~-", 1, { "x" },
- "x y", " _~-", 2, { "x", "y" },
- "ab _~- cd", " _~-", 2, { "ab", "cd" },
- " a_b c~", " _~-", 5, { "", "a", "b", "c", "" },
- "a b_c-d~e f", " _~-", 6, { "a", "b", "c", "d", "e f" },
- "~a-b c d ", " _~-", 6, { "", "a", "b", "c", "d " },
-
- "", " ", 0, { "" },
- " ", " ", 2, { "", "" },
- "x", " ", 1, { "x" },
- "xy", " ", 1, { "xy" },
- "x y", " ", 2, { "x", "y" },
- "abc def g ", " ", 4, { "abc", "def", "g", "" },
- " a bcd", " ", 3, { "", "a", "bcd" },
- "a b c d e f", " ", 6, { "a", "b", "c", "d", "e f" },
- " a b c d ", " ", 6, { "", "a", "b", "c", "d " },
-
- "", "", 0, { "" },
- " ", "", 0, { "" },
- "x", "", 1, { "x" },
- "xy", "", 1, { "xy" },
- "x y", "", 2, { "x", "y" },
- "abc def g ", "", 3, { "abc", "def", "g" },
- "\t a bcd", "", 2, { "a", "bcd" },
- " a \tb\t c ", "", 3, { "a", "b", "c" },
- "a b c d e ", "", 5, { "a", "b", "c", "d", "e" },
- "a b\tc d e f", "", 6, { "a", "b", "c", "d", "e f" },
- " a b c d e f ", "", 6, { "a", "b", "c", "d", "e f " },
-
- NULL, NULL, 0, { NULL },
-};
-
-int
-regress(void)
-{
- char buf[512];
- register int n;
- char *fields[RNF+1];
- register int nf;
- register int i;
- register int printit;
- register char *f;
-
- for (n = 0; tests[n].str != NULL; n++) {
- strncpy(buf, tests[n].str, SIZEOF(buf)-1);
- buf[SIZEOF(buf)-1] = '\0';
- fields[RNF] = NULL;
- nf = split(buf, fields, RNF, tests[n].seps);
- printit = 0;
- if (nf != tests[n].nf) {
- printf("split `%s' by `%s' gave %d fields, not %d\n",
- tests[n].str, tests[n].seps, nf, tests[n].nf);
- printit = 1;
- } else if (fields[RNF] != NULL) {
- printf("split() went beyond array end\n");
- printit = 1;
- } else {
- for (i = 0; i < nf && i < RNF; i++) {
- f = fields[i];
- if (f == NULL)
- f = "(NULL)";
- if (strcmp(f, tests[n].fi[i]) != 0) {
- printf("split `%s' by `%s', field %d is `%s', not `%s'\n",
- tests[n].str, tests[n].seps,
- i, fields[i], tests[n].fi[i]);
- printit = 1;
- }
- }
- }
- if (printit)
- print(nf, RNF, fields);
- }
-}
-#endif
projects / debian / amanda / blobdiff