patternSearch.c File Reference

#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include "patternSearch.h"

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Functions
uint32_t	PatternSearch (char *text, char *pattern)
	PatSearch is a Function to search for specific patterns in a text. (Be aware that its case sensitive!)

Function Documentation

PatternSearch()

uint32_t PatternSearch	(	char *	text,
		char *	pattern )

PatSearch is a Function to search for specific patterns in a text. (Be aware that its case sensitive!)

Parameters

text	Input as a char array / as a string
pattern	Input as a char array / as a string

Returns

int returns the position of the match or -1 if no match was found

Definition at line 16 of file patternSearch.c.

{
    uint32_t t = strlen(text);
    uint32_t p = strlen(pattern);
 
    for (uint32_t i = 0; i < t - p; i++)
    {
        uint32_t j;
        for (j = 0; j < p; j++)
            if (text[i + j] != pattern[j])
                break;
 
        if (j == p)
            return i + 1;
    }
    return -1;
}

Referenced by FunctionCall().

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