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#include <Formats/verbosePrintString.h>
#include <base/hex.h>
#include <IO/Operators.h>
namespace DB
{
void verbosePrintString(const char * begin, const char * end, WriteBuffer & out)
{
if (end == begin)
{
out << "<EMPTY>";
return;
}
out << "\"";
for (const char * pos = begin; pos < end; ++pos)
{
switch (*pos)
{
case '\0':
out << "<ASCII NUL>";
break;
case '\b':
out << "<BACKSPACE>";
break;
case '\f':
out << "<FORM FEED>";
break;
case '\n':
out << "<LINE FEED>";
break;
case '\r':
out << "<CARRIAGE RETURN>";
break;
case '\t':
out << "<TAB>";
break;
case '\\':
out << "<BACKSLASH>";
break;
case '"':
out << "<DOUBLE QUOTE>";
break;
case '\'':
out << "<SINGLE QUOTE>";
break;
default:
{
if (static_cast<unsigned char>(*pos) < 32) /// ASCII control characters
out << "<0x" << hexDigitUppercase(*pos / 16) << hexDigitUppercase(*pos % 16) << ">";
else
out << *pos;
}
}
}
out << "\"";
}
}
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