| System: Linux srv913213 5.15.0-190-generic #200-Ubuntu SMP Fri Aug 7 15:06:04 UTC 2026 x86_64 Current Path : /var/www/talentgenesis_admin_backend/node_modules/juice/lib/ |
| Current File : /var/www/talentgenesis_admin_backend/node_modules/juice/lib/variables.js |
'use strict';
const uniqueString = (string) => {
let str = '';
do{
str = (Math.random() + 1).toString(36).substring(2);
}while(string.indexOf(str) !== -1);
return str;
}
/**
* Replace css variables with their value
*/
const replaceVariables = (el,value) => {
// find non-nested css function calls
// eg: rgb(...), drop-shadow(...)
let funcReg = /([a-z\-]+)\s*\(\s*([^\(\)]*?)\s*(?:,\s*([^\(\)]*?)\s*)?\s*\)/i;
let replacements = [];
let match;
let uniq = uniqueString(value);
while( (match = funcReg.exec(value)) !== null ){
let i = `${replacements.length}`;
// attempt to resolve variables
if( match[1].toLowerCase() == 'var' ){
const varValue = findVariableValue(el, match[2]);
// found variable value
if( varValue ){
value = value.replace(match[0],varValue);
continue;
}
// use default value
// var(--name , default-value)
if( match[3] ){
value = value.replace(match[0],match[3]);
continue;
}
}
let placeholder = `${uniq}${i.padStart(5,'-')}`;
value = value.replace(match[0],placeholder);
replacements.push({placeholder,replace:match[0]});
}
for( var i = replacements.length-1; i >=0; i--){
const replacement = replacements[i];
value = value.replace(replacement.placeholder,replacement.replace);
}
return value;
}
const findVariableValue = (el, variable) => {
while (el) {
if (el.styleProps && variable in el.styleProps) {
return el.styleProps[variable].value;
}
var el = el.pseudoElementParent || el.parent;
}
}
module.exports = { replaceVariables, findVariableValue };