static int
rgb2xterm (uint8_t r, uint8_t g, uint8_t b)
{
static bool tableInit = false;
double dst, dtmp;
int best, i;
if (!tableInit) {
for (i=0; i<=253; ++i)
colourTable_G[i] = xterm2rgb (i);
tableInit = true;
}
best = 0;
dst = 10000000000.0;
for (i=0; i<=253; ++i) {
dtmp = pow (colourTable_G[i].r - r, 2.0) +
pow (colourTable_G[i].g - g, 2.0) +
pow (colourTable_G[i].b - b, 2.0);
if (dtmp < dst) {
dst = dtmp;
best = i;
}
}
return best;
}
int main()
{
int i = 16;
unsigned char c[3];
puts("GIMP Palette");
puts("Name: xterm-256color");
puts("Columns: 12");
puts("#");
for (; i < 256; i ++)
{
xterm2rgb(i, c);
printf("%3d %3d %3d #%d, ", c[0], c[1], c[2], i);
if (i < 232)
printf("color cube (%d, %d, %d)\n",
((i - 16) / 36) % 6, ((i - 16) / 6) % 6, (i - 16) % 6);
else
printf("grey ramp (%d)\n", i - 232);
}
return 0;
}
bool CodeGenerator::parseSequence(const string& line, size_t begin, size_t end)
{
if (end-begin>2 && line[begin]!=0x1b && line[begin+1]!=0x5b)
{
return false;
}
int ansiCode=0;
int colorCode=0;
unsigned char colorValues[3]={0};
char colorString[10]={0};
string codes=line.substr(begin+2, end-begin-2);
vector<string> codeVector = StringTools::splitString(codes, ';');
if (codes.empty()){ // fix empty grep --color ending sequence
elementStyle.setReset(true);
return true;
}
std::vector<std::string>::iterator itVectorData = codeVector.begin();
while( itVectorData != codeVector.end())
{
StringTools::str2num<int>(ansiCode, *(itVectorData), std::dec);
elementStyle.setReset(false);
switch (ansiCode)
{
case 0: //Reset
elementStyle.setReset(true);
break;
case 1: //Bold
elementStyle.setBold(true);
break;
case 2: //Faint
break;
case 3: //italic
elementStyle.setItalic(true);
break;
case 5: //Blink
case 6: //Blink fast
elementStyle.setBlink(true);
break;
case 8: // Conceal
elementStyle.setConceal(true);
break;
case 4:// Underline Single
case 21: // Underline double
elementStyle.setUnderline(true);
break;
case 7: // image negative
elementStyle.imageMode(true);
break;
case 22: // not bold, not faint
elementStyle.setBold(false);
break;
case 24: //no underline
elementStyle.setUnderline(false);
break;
case 25: //no blink
elementStyle.setBlink(false);
break;
case 27: // image positive
elementStyle.imageMode(false);
break;
case 28: // Reveal
elementStyle.setConceal(false);
break;
case 30:
elementStyle.setFgColour(ColorBlack);
break;
case 31:
elementStyle.setFgColour(ColorRed);
break;
case 32:
elementStyle.setFgColour(ColorGreen);
break;
case 33:
elementStyle.setFgColour(ColorYellow);
break;
case 34:
elementStyle.setFgColour(ColorBlue);
break;
case 35:
elementStyle.setFgColour(ColorMagenta);
break;
case 36:
elementStyle.setFgColour(ColorCyan);
break;
case 37:
elementStyle.setFgColour(ColorWhite);
break;
case 38: // xterm 256 foreground color mode \033[38;5;<color>
itVectorData++;
if (itVectorData == codeVector.end()) break;
if(*(itVectorData)!="5") break;
itVectorData++;
if (itVectorData == codeVector.end()) break;
StringTools::str2num<int>(colorCode, *(itVectorData), std::dec);
xterm2rgb((unsigned char)colorCode, colorValues);
sprintf(colorString, "#%02x%02x%02x",
colorValues[0], colorValues[1], colorValues[2]);
elementStyle.setFgColour(colorString);
break;
case 39:
elementStyle.setReset(true);
break;
case 40:
elementStyle.setBgColour(ColorBlack);
break;
case 41:
elementStyle.setBgColour(ColorRed);
break;
case 42:
elementStyle.setBgColour(ColorGreen);
break;
case 43:
elementStyle.setBgColour(ColorYellow);
break;
case 44:
elementStyle.setBgColour(ColorBlue);
break;
case 45:
elementStyle.setBgColour(ColorMagenta);
break;
case 46:
elementStyle.setBgColour(ColorCyan);
break;
case 47:
elementStyle.setBgColour(ColorWhite);
break;
case 48: // xterm 256 background color mode \033[48;5;<color>
itVectorData++;
if (itVectorData == codeVector.end()) break;
if(*(itVectorData)!="5") break;
itVectorData++;
if (itVectorData == codeVector.end()) break;
StringTools::str2num<int>(colorCode, *(itVectorData), std::dec);
xterm2rgb((unsigned char)colorCode, colorValues);
sprintf(colorString, "#%02x%02x%02x",
colorValues[0], colorValues[1], colorValues[2]);
elementStyle.setBgColour(colorString);
break;
case 49:
elementStyle.setReset(true);
break;
}
if (ansiCode>=30 and ansiCode <40)
elementStyle.setFgColourID(ansiCode-30);
if (ansiCode>=40 and ansiCode <50)
elementStyle.setBgColourID(ansiCode-40);
if (itVectorData != codeVector.end()) itVectorData++;
}
return true;
}
