string convertWildcardedExpressionToFse(const string& expression)
{
auto getPackageNameFse = [](const string& packageNameExpression)
{
return format2("package:name(%s)", globToRegexString(packageNameExpression));
};
auto delimiterPosition = expression.find_first_of("/=");
if (delimiterPosition != string::npos)
{
string additionalFseRule;
string packageGlobExpression = expression.substr(0, delimiterPosition);
string remainder = expression.substr(delimiterPosition+1);
if (expression[delimiterPosition] == '/') // distribution
{
static const sregex distributionExpressionRegex = sregex::compile("[a-z-]+");
static smatch m;
if (!regex_match(remainder, m, distributionExpressionRegex))
{
fatal2(__("bad distribution '%s' requested, use archive or codename"), remainder);
}
additionalFseRule = format2("or(release:archive(%s), release:codename(%s))", remainder, remainder);
}
else // exact version string
{
checkVersionString(remainder);
additionalFseRule = format2("version(%s)", globToRegexString(remainder));
}
return format2("%s & %s", getPackageNameFse(packageGlobExpression), additionalFseRule);
}
else
{
return getPackageNameFse(expression);
}
}
sregex globToRegex(const string& glob)
{
return stringToRegex<sregex>(globToRegexString(glob));
}