library/cpp/string_utils/indent_text/indent_text.cpp


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#include "indent_text.h"

#include <util/stream/str.h> 
 
TString IndentText(TStringBuf text, TStringBuf indent) {
    if (text.empty()) 
        return TString();
 
    TStringStream ss; 
    ss.Reserve(text.size() + 20);
 
    char pc = 0; 
    for (size_t i = 0; i < text.size(); ++i) { 
        if (i == 0 || pc == '\n') 
            ss << indent; 
 
        char c = text.at(i); 
        ss << c; 
        pc = c; 
    } 
    if (pc != '\n') 
        ss << '\n'; 
 
    return ss.Str(); 
}