rushs/tinyprintf/simple_fnmatch/simple_fnmatch.c


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#include "simple_fnmatch.h"

int simple_fnmatch(const char *pattern, const char *string)
{
    if (!pattern || !string)
        return FNM_NOMATCH;
    if (*pattern == '*' && pattern[1] == '\0')
        return 0;
    while (*pattern && *string)
    {
        if (*pattern == '?')
        {
            pattern++;
            string++;
        }
        else if (*pattern == '\\')
        {
            pattern++;
            if (!pattern || *pattern != *string)
                return FNM_NOMATCH;
            string++;
            pattern++;
        }
        else if (*pattern == '*')
        {
            pattern++;
            while (*string && simple_fnmatch(pattern, string))
                string++;
            if (*string)
                return 0;
        }
        else if (*pattern != *string)
            return FNM_NOMATCH;
        else
        {
            string++;
            pattern++;
        }
    }

    if (*pattern == '*' && pattern[1] == '\0')
        return 0;
    if (*string || *pattern)
        return FNM_NOMATCH;
    return 0;
}