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Zoho Deluge: Convert Hex to RGB

Zoho Deluge: Convert Hex to RGB

Category: Zoho Deluge
Hits: 14687
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What?
A quick article to document a Zoho Deluge function converting a hexadecimal color reference to a Red Green Blue value (RGB).

Why?
It's likely that Zoho will avail their color picker at some point as an input but at the time of print, this hasn't happened yet. Here's a function in deluge that takes a 3 or 6 character hexadecimal color and returns the RGB values for you.

How?
Very quickly, we take each character from the given string and convert it to its RGB value. Replace letters A to F with their numeric equivalents. Made up of 2 characters to convert to an RGB subset, the 1st value is to be multiplied by 16 and then added to the value of the 2nd; this equals the RGB value.

Given #00FF00
copyraw 
// 
// given value
v_HexGiven = "#00FF00";
//
// transform or format the submitted value
v_HexValue = v_HexGiven.replaceAll("#", "").toUpperCase();
//
// using a regular expression: split into pairs of characters or if short hex given, then split into 3 characters
l_HexParts = v_HexValue.replaceAll("(?)",",",false).toList().subList(1,4);
if(v_HexGiven.toString().len()>4)
{
	l_HexParts = v_HexValue.replaceAll("(?<=\\G..)",",",false).toList().subList(0,3);
}
//
// declare our output variable and map the characters to a value
l_RgbResult = List();
m_HexMap = {"0":0,"1":1,"2":2,"3":3,"4":4,"5":5,"6":6,"7":7,"8":8,"9":9,"A":10,"B":11,"C":12,"D":13,"E":14,"F":15};
//
// loop through the 3 parts of the given hex and add to a list
for each v_HexPart in l_HexParts
{
	v_HexConvert = if(v_HexPart.toString().len()==1, v_HexPart.toString() + v_HexPart.toString(), v_HexPart).toString();
	v_Rgb_1 = m_HexMap.get(v_HexConvert.subString(0,1)) * 16;
	v_Rgb_2 = m_HexMap.get(v_HexConvert.subString(1,2));
	v_Rgb_Sum = v_Rgb_1 + v_Rgb_2;
	l_RgbResult.add(v_Rgb_Sum);
}
//
// output
info "rgb(" + l_RgbResult.toList() + ")";
// yields rgb(0,255,0)
  1.  // 
  2.  // given value 
  3.  v_HexGiven = "#00FF00"; 
  4.  // 
  5.  // transform or format the submitted value 
  6.  v_HexValue = v_HexGiven.replaceAll("#", "").toUpperCase(); 
  7.  // 
  8.  // using a regular expression: split into pairs of characters or if short hex given, then split into 3 characters 
  9.  l_HexParts = v_HexValue.replaceAll("(?)",",",false).toList().subList(1,4); 
  10.  if(v_HexGiven.toString().len()>4) 
  11.  { 
  12.      l_HexParts = v_HexValue.replaceAll("(?<=\\G..)",",",false).toList().subList(0,3); 
  13.  } 
  14.  // 
  15.  // declare our output variable and map the characters to a value 
  16.  l_RgbResult = List(); 
  17.  m_HexMap = {"0":0,"1":1,"2":2,"3":3,"4":4,"5":5,"6":6,"7":7,"8":8,"9":9,"A":10,"B":11,"C":12,"D":13,"E":14,"F":15}; 
  18.  // 
  19.  // loop through the 3 parts of the given hex and add to a list 
  20.  for each v_HexPart in l_HexParts 
  21.  { 
  22.      v_HexConvert = if(v_HexPart.toString().len()==1, v_HexPart.toString() + v_HexPart.toString(), v_HexPart).toString(); 
  23.      v_Rgb_1 = m_HexMap.get(v_HexConvert.subString(0,1)) * 16; 
  24.      v_Rgb_2 = m_HexMap.get(v_HexConvert.subString(1,2)); 
  25.      v_Rgb_Sum = v_Rgb_1 + v_Rgb_2; 
  26.      l_RgbResult.add(v_Rgb_Sum); 
  27.  } 
  28.  // 
  29.  // output 
  30.  info "rgb(" + l_RgbResult.toList() + ")"; 
  31.  // yields rgb(0,255,0) 

Note(s):
If using this in CRM, note that the regular expression here needs the escaping(-escaping) backslash to be omitted:
copyraw 
l_HexParts = v_HexValue.replaceAll("(?<=\G..)",",",false).toList().subList(0,3);
  1.  l_HexParts = v_HexValue.replaceAll("(?<=\G..)",",",false).toList().subList(0,3); 

Testing it out
copyraw 
v_HexGiven = "#0f0";
// yields: rgb(0,255,0)

v_HexGiven = "#dcf02c";
// yields: rgb(220,240,44)
  1.  v_HexGiven = "#0f0"; 
  2.  // yields: rgb(0,255,0) 
  3.   
  4.  v_HexGiven = "#dcf02c"; 
  5.  // yields: rgb(220,240,44) 

Broken Down / Simplified:
copyraw 
v_1stHex = v_HexGiven.subString(0,2);
v_2ndHex = v_HexGiven.subString(2,4);
v_3rdHex = v_HexGiven.subString(4,6);
//
v_Rgb_1 = m_HexNumbers.get(v_1stHex.subString(0,1)) * 16;
v_Rgb_2 = m_HexNumbers.get(v_1stHex.subString(1,2));
v_1stRgb = v_Rgb_1 + v_Rgb_2;
//
v_Rgb_1 = m_HexNumbers.get(v_2ndHex.subString(0,1)) * 16;
v_Rgb_2 = m_HexNumbers.get(v_2ndHex.subString(1,2));
v_2ndRgb = v_Rgb_1 + v_Rgb_2;
//
v_Rgb_1 = m_HexNumbers.get(v_3rdHex.subString(0,1)) * 16;
v_Rgb_2 = m_HexNumbers.get(v_3rdHex.subString(1,2));
v_3rdRgb = v_Rgb_1 + v_Rgb_2;
//
info "rgb(" + v_1stRgb + "," + v_2ndRgb + "," + v_3rdRgb + ")";
  1.  v_1stHex = v_HexGiven.subString(0,2); 
  2.  v_2ndHex = v_HexGiven.subString(2,4); 
  3.  v_3rdHex = v_HexGiven.subString(4,6); 
  4.  // 
  5.  v_Rgb_1 = m_HexNumbers.get(v_1stHex.subString(0,1)) * 16; 
  6.  v_Rgb_2 = m_HexNumbers.get(v_1stHex.subString(1,2)); 
  7.  v_1stRgb = v_Rgb_1 + v_Rgb_2; 
  8.  // 
  9.  v_Rgb_1 = m_HexNumbers.get(v_2ndHex.subString(0,1)) * 16; 
  10.  v_Rgb_2 = m_HexNumbers.get(v_2ndHex.subString(1,2)); 
  11.  v_2ndRgb = v_Rgb_1 + v_Rgb_2; 
  12.  // 
  13.  v_Rgb_1 = m_HexNumbers.get(v_3rdHex.subString(0,1)) * 16; 
  14.  v_Rgb_2 = m_HexNumbers.get(v_3rdHex.subString(1,2)); 
  15.  v_3rdRgb = v_Rgb_1 + v_Rgb_2; 
  16.  // 
  17.  info "rgb(" + v_1stRgb + "," + v_2ndRgb + "," + v_3rdRgb + ")"; 

Vice-Versa: Code Snippet to convert RGB to Hex
Even easier than our Hex to RGB, same as above but in reverse:
copyraw 
// 
// given value (note that a list of 3 values are submitted to this)
l_RgbRequest = ifnull(p_RGB,{0,0,0});
// 
// list to map the value to a character
l_RgbList = {0,1,2,3,4,5,6,7,8,9,"A","B","C","D","E","F"};
// 
// loop through the 3 parts of the given hex and add to a list 
v_HexResult = "#";
for each  v_RgbPart in l_RgbRequest
{
	//
	// quotient: divide rgb by 16 for 1st character
	v_Hex_1 = floor(v_RgbPart / 16);
	//
	// remainder/modulus: get remainder from division of rgb by 16
	v_Hex_2 = v_RgbPart % 16;
	//
	// concatenate these 2 characters to our output string
	v_HexResult = v_HexResult + l_RgbList.get(v_Hex_1).toString() + l_RgbList.get(v_Hex_2).toString();
}
// 
// output 
return v_HexResult;
  1.  // 
  2.  // given value (note that a list of 3 values are submitted to this) 
  3.  l_RgbRequest = ifnull(p_RGB,{0,0,0}); 
  4.  // 
  5.  // list to map the value to a character 
  6.  l_RgbList = {0,1,2,3,4,5,6,7,8,9,"A","B","C","D","E","F"}; 
  7.  // 
  8.  // loop through the 3 parts of the given hex and add to a list 
  9.  v_HexResult = "#"; 
  10.  for each  v_RgbPart in l_RgbRequest 
  11.  { 
  12.      // 
  13.      // quotient: divide rgb by 16 for 1st character 
  14.      v_Hex_1 = floor(v_RgbPart / 16); 
  15.      // 
  16.      // remainder/modulus: get remainder from division of rgb by 16 
  17.      v_Hex_2 = v_RgbPart % 16; 
  18.      // 
  19.      // concatenate these 2 characters to our output string 
  20.      v_HexResult = v_HexResult + l_RgbList.get(v_Hex_1).toString() + l_RgbList.get(v_Hex_2).toString(); 
  21.  } 
  22.  // 
  23.  // output 
  24.  return v_HexResult; 
If put in a function:
copyraw 
// given
l_Given = {11,255,128};
info thisapp.Color_Picker.fn_RGBToHex(l_Given);
// yields #0BFF80
  1.  // given 
  2.  l_Given = {11,255,128}; 
  3.  info thisapp.Color_Picker.fn_RGBToHex(l_Given); 
  4.  // yields #0BFF80 


Category: Zoho Deluge :: Article: 413

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