cppstring GTextUtils::MatchSubString(const cppstring & sFullName, const cppstring & sFormat, const cppstring & sSubName)
{
// MatchSubString determines whether sFullName matches sFormat (allowing sSubName to stand for a wildcard)
// For example, if the format is "Run %n" and "%n" is the wildcard, then "Run 1" will match and return "1".
cppstring sSubString;
// Find the starting character of the wildcard string (assume 0 if wildcard isn't found)
unsigned int nStartSub = sFormat.find(sSubName), nEndSub;
if (nStartSub != cppstring::npos)
{
nEndSub = nStartSub + sSubName.length();
// Break the format into two chunks surrounding the wildcard
cppstring sBeginFormat = sFormat.substr(0, nStartSub);
cppstring sEndFormat = sFormat.substr(nEndSub, sFormat.length() - sSubName.length());
// Now match the beginning and ending formats and extract the wildcard string
unsigned int nStartMatch = sFullName.find(sBeginFormat), nEndMatch;
if (nStartMatch != cppstring::npos)
{
nStartMatch += sBeginFormat.length();
nEndMatch = sFullName.rfind(sEndFormat);
if (nEndMatch != cppstring::npos)
sSubString = sFullName.substr(nStartMatch, nEndMatch - nStartMatch);
}
}
return sSubString;
}
