c++ - file name matching with wildcard

Question

I need to implement something like my own file system. One operation would be the FindFirstFile. I need to check, if the caller passed something like ., sample*.cpp or so. My "file system" implementation provides the list of "files names" as a array of char*.

Is there any Windows function or any source code that implements this file name matching?

Answer 1

For wildcard name matching using '*' and '?' try this (if you want to avoid boost, use std::tr1::regex):

#include <boost/regex.hpp>
#include <boost/algorithm/string/replace.hpp>

using std::string;

bool MatchTextWithWildcards(const string &text, string wildcardPattern, bool caseSensitive /*= true*/)
{
    // Escape all regex special chars
    EscapeRegex(wildcardPattern);

    // Convert chars '*?' back to their regex equivalents
    boost::replace_all(wildcardPattern, "\?", ".");
    boost::replace_all(wildcardPattern, "\*", ".*");

    boost::regex pattern(wildcardPattern, caseSensitive ? regex::normal : regex::icase);

    return regex_match(text, pattern);
}

void EscapeRegex(string &regex)
{
    boost::replace_all(regex, "", "");
    boost::replace_all(regex, "^", "\^");
    boost::replace_all(regex, ".", "\.");
    boost::replace_all(regex, "$", "\$");
    boost::replace_all(regex, "|", "\|");
    boost::replace_all(regex, "(", "\(");
    boost::replace_all(regex, ")", "\)");
    boost::replace_all(regex, "{", "\{");
    boost::replace_all(regex, "{", "\}");
    boost::replace_all(regex, "[", "\[");
    boost::replace_all(regex, "]", "\]");
    boost::replace_all(regex, "*", "\*");
    boost::replace_all(regex, "+", "\+");
    boost::replace_all(regex, "?", "\?");
    boost::replace_all(regex, "/", "\/");
}