I need to match a float inside a very long string (about 5000 chars) with sscanf. (I trimmed the string in this example.) I can't seem to match all the chars that come before and after the float.
Code:
int main(void)
{
char A[5000] = "";
strcat(A, " hello world! WORD' name='5.3498' hello world! ");
float B = 0;
sscanf(A, "WORD' name='%f", &B); // how can I match all chars before WORD and after the float ?
printf("%f\n", B);
return 0;
}
remember: you asked sscanf to match a pattern, and it will ;
what sscanf will not do, is to search (crawl) for a pattern, for this is the purpose of strstr ... see below:
Code:
#include <stdio.h>
#include <string.h>
int main(void) {
char A[5000] = "";
float B = 0;
char * begin;
strcat(A, " hello world! WORD' name='5.3498' hello world! ");
begin = strstr (A, "WORD'") ;
sscanf(begin, "WORD' name='%f", &B); // how can I match all chars before WORD and after the float ?
printf("%f\n", B);
return 0;
}
- strstr will actually find the beginning of the pattern to match, and sscanf will do what it does best: just scan ...
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