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/* a-tools.c:
some tools from herbert attenberger <herbsl@a-land.de>
*/
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <vdr/plugin.h>
#include "a-tools.h"
char *strsub(char* s, int p, int n) {
char *s1;
int l;
// let's do some checks:
if (s == NULL) {return NULL;}
l = strlen(s);
if (p > l || p < 1 || n < 1) {return NULL;}
if (p + n > l + 1) {n = l - p + 1;}
// point s to the beginning of the substring
s = s + p - 1;
// allocate memory and store the substring in s1
s1 = (char*) malloc(sizeof(char) * (n + 1));
memmove(s1, s, sizeof(char) * n);
s1[n] = '\0';
return s1;
}
char *strcol(char *s,const char *d, int c) {
char *s1, *s2;
int i;
int l, l1;
// let's do some checks:
if (s == NULL) {return NULL;}
if (d == NULL) {return NULL;}
if (c < 1) {return NULL;}
l = strlen(d);
// point s to the beginning of the column
for (i = 1; i < c; i++) {
s = strstr(s, d);
if (s == NULL) {return NULL;}
s = s + l;
}
// point s1 to the end of the column
s1 = strstr(s, d);
if (s1 == NULL) {
// check newline or end of string
s1 = strchr(s, '\n');
if (s1 == NULL) {s1 = strchr(s,'\0');}
}
l1 = s1 -s; // store length of column in l1
// allocate memory and store the column in s2
s2 = (char*) malloc(sizeof(char) * (l1 + 1));
memmove(s2, s, sizeof(char) * l1);
s2[l1] = '\0';
return s2;
}
int strnumcol(const char *s, const char *d) {
const char *s1;
int i, l;
// let's do some checks:
if (s == NULL) {return 0;}
if (d == NULL) {return 0;}
i = 1;
l = strlen(d);
s1 = strstr(s, d);
while (s1 != NULL) {
i++;
s1 = s1 + l;
s1 = strstr(s1, d);
}
return i;
}
char *strgrep(const char *s, FILE *f) {
char *s1 = (char *)"";
size_t i = 0;
// let's do some checks
if (s == NULL) {return NULL;}
// search the line
while (strstr(s1, s) == NULL) {
if (getline(&s1, &i, f) == -1) {
dsyslog("string %s not found !", s);
return NULL;
}
}
return s1;
}
int roundValue(int i, int i1) {return i / i1 * i1;}
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