util/string/strip.cpp


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#include "strip.h" 
#include "ascii.h" 
 
#include <util/string/reverse.h>

bool Collapse(const TString& from, TString& to, size_t maxLen) {
    return CollapseImpl<TString, bool (*)(unsigned char)>(from, to, maxLen, IsAsciiSpace);
} 
 
void CollapseText(const TString& from, TString& to, size_t maxLen) {
    Collapse(from, to, maxLen);
    StripInPlace(to);
    if (to.size() >= maxLen) {
        to.remove(maxLen - 5); // " ..."
        ReverseInPlace(to);
        size_t pos = to.find_first_of(" .,;"); 
        if (pos != TString::npos && pos < 32) { 
            to.remove(0, pos + 1); 
        } 
        ReverseInPlace(to);
        to.append(" ..."); 
    } 
}