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#include <iostream>
#include "src/codegen/print.h"
#include "src/globals.h"
namespace re2c
{
bool is_print (uint32_t c)
{
return c >= 0x20 && c < 0x7F;
}
bool is_space (uint32_t c)
{
switch (c)
{
case '\t':
case '\f':
case '\v':
case '\n':
case '\r':
case ' ':
return true;
default:
return false;
}
}
char hexCh(uint32_t c)
{
static const char * sHex = "0123456789ABCDEF";
return sHex[c & 0x0F];
}
void prtChOrHex(std::ostream& o, uint32_t c)
{
if (opts->encoding.type () != Enc::EBCDIC
&& (is_print (c) || is_space (c)))
{
o << '\'';
prtCh(o, c);
o << '\'';
}
else
{
prtHex(o, c);
}
}
void prtHex(std::ostream& o, uint32_t c)
{
o << "0x";
const uint32_t cunit_size = opts->encoding.szCodeUnit ();
if (cunit_size >= 4)
{
o << hexCh (c >> 28u)
<< hexCh (c >> 24u)
<< hexCh (c >> 20u)
<< hexCh (c >> 16u);
}
if (cunit_size >= 2)
{
o << hexCh (c >> 12u)
<< hexCh (c >> 8u);
}
o << hexCh (c >> 4u)
<< hexCh (c);
}
void prtCh(std::ostream& o, uint32_t c)
{
const bool dot = opts->target == opt_t::DOT;
switch (c)
{
case '\'':
o << (dot ? "'" : "\\'");
break;
case '"':
o << (dot ? "\\\"" : "\"");
break;
case '\n':
o << (dot ? "\\\\n" : "\\n");
break;
case '\t':
o << (dot ? "\\\\t" : "\\t");
break;
case '\v':
o << (dot ? "\\\\v" : "\\v");
break;
case '\b':
o << (dot ? "\\\\b" : "\\b");
break;
case '\r':
o << (dot ? "\\\\r" : "\\r");
break;
case '\f':
o << (dot ? "\\\\f" : "\\f");
break;
case '\a':
o << (dot ? "\\\\a" :"\\a");
break;
case '\\':
o << "\\\\"; // both .dot and C/C++ code expect "\\"
break;
default:
o << static_cast<char> (c);
break;
}
}
void prtChOrHexForSpan(std::ostream& o, uint32_t c)
{
if (opts->encoding.type () != Enc::EBCDIC
&& is_print (c)
&& (c != ']'))
{
prtCh(o, c);
}
else
{
prtHex(o, c);
}
}
void printSpan(std::ostream& o, uint32_t lb, uint32_t ub)
{
o << "[";
if ((ub - lb) == 1)
{
prtChOrHexForSpan(o, lb);
}
else
{
prtChOrHexForSpan(o, lb);
o << "-";
prtChOrHexForSpan(o, ub - 1);
}
o << "]";
}
} // end namespace re2c
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