const Language* Config::findLanguage(const std::string &filepath) const {
const Language* lang = nullptr;
namespace fs = boost::filesystem;
fs::path path(filepath);
std::wstring filename = path.filename().wstring();
std::wstring extension = path.extension().wstring();
// remove dot
extension.erase(0, 1);
// search
auto langIt = boost::find_if(languages, [extension, filename](const Language &lang){
auto extIt = boost::find_if(lang.extensions, [extension, filename](const std::string &ext){
std::wstring wext(ext.begin(), ext.end());
return wext == extension || wext == filename;
});
return extIt != std::end(lang.extensions);
});
if (langIt != std::end(languages)) {
lang = &(*langIt);
}
return lang;
}
/*
* AS R63 Appl. Statist. (1986) Vol. 35, No.2
*
* A remark on AS 181
*
* Calculates Sheppard Cdhc_corrected version of W test.
*
* Auxiliary functions required: Cdhc_alnorm = algorithm AS 66, and PPND =
* algorithm AS 111 (or Cdhc_ppnd7 from AS 241).
*/
void Cdhc_wgp(double x[], int n, double ssq, double gp, double h, double a[],
int n2, double eps, double w, double u, double p, int *ifault)
{
double zbar, zsd, an1, hh;
zbar = 0.0;
zsd = 1.0;
*ifault = 1;
if (n < 7)
return;
if (gp > 0.0) { /* No Cdhc_correction applied if gp=0. */
an1 = (double)(n - 1);
/* Cdhc_correct ssq and find standardized grouping interval (h) */
ssq = ssq - an1 * gp * gp / 12.0;
h = gp / sqrt(ssq / an1);
*ifault = 4;
if (h > 1.5)
return;
}
wext(x, n, ssq, a, n2, eps, &w, &p, ifault);
if (*ifault != 0)
return;
if (!(p > 0.0 && p < 1.0)) {
u = 5.0 - 10.0 * p;
return;
}
if (gp > 0.0) {
/* Cdhc_correct u for grouping interval (n<=100 and n>100 separately) */
hh = sqrt(h);
if (n <= 100) {
zbar = -h * (1.07457 + hh * (-2.8185 + hh * 1.8898));
zsd = 1.0 + h * (0.50933 + hh * (-0.98305 + hh * 0.7408));
}
else {
zbar = -h * (0.96436 + hh * (-2.1300 + hh * 1.3196));
zsd = 1.0 + h * (0.2579 + h * 0.15225);
}
}
/* ppnd is AS 111 (Beasley and Springer, 1977) */
u = (-ppnd16(p) - zbar) / zsd;
/* Cdhc_alnorm is AS 66 (Hill, 1973) */
p = Cdhc_alnorm(u, 1);
return;
}