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: / var / www / cdcdhaka.org / node_modules / tailwindcss / lib / value-parser /
Filename : unit.js
back
"use strict";
var minus = "-".charCodeAt(0);
var plus = "+".charCodeAt(0);
var dot = ".".charCodeAt(0);
var exp = "e".charCodeAt(0);
var EXP = "E".charCodeAt(0);
// Check if three code points would start a number
// https://www.w3.org/TR/css-syntax-3/#starts-with-a-number
function likeNumber(value) {
    var code = value.charCodeAt(0);
    var nextCode;
    if (code === plus || code === minus) {
        nextCode = value.charCodeAt(1);
        if (nextCode >= 48 && nextCode <= 57) {
            return true;
        }
        var nextNextCode = value.charCodeAt(2);
        if (nextCode === dot && nextNextCode >= 48 && nextNextCode <= 57) {
            return true;
        }
        return false;
    }
    if (code === dot) {
        nextCode = value.charCodeAt(1);
        if (nextCode >= 48 && nextCode <= 57) {
            return true;
        }
        return false;
    }
    if (code >= 48 && code <= 57) {
        return true;
    }
    return false;
}
// Consume a number
// https://www.w3.org/TR/css-syntax-3/#consume-number
module.exports = function(value) {
    var pos = 0;
    var length = value.length;
    var code;
    var nextCode;
    var nextNextCode;
    if (length === 0 || !likeNumber(value)) {
        return false;
    }
    code = value.charCodeAt(pos);
    if (code === plus || code === minus) {
        pos++;
    }
    while(pos < length){
        code = value.charCodeAt(pos);
        if (code < 48 || code > 57) {
            break;
        }
        pos += 1;
    }
    code = value.charCodeAt(pos);
    nextCode = value.charCodeAt(pos + 1);
    if (code === dot && nextCode >= 48 && nextCode <= 57) {
        pos += 2;
        while(pos < length){
            code = value.charCodeAt(pos);
            if (code < 48 || code > 57) {
                break;
            }
            pos += 1;
        }
    }
    code = value.charCodeAt(pos);
    nextCode = value.charCodeAt(pos + 1);
    nextNextCode = value.charCodeAt(pos + 2);
    if ((code === exp || code === EXP) && (nextCode >= 48 && nextCode <= 57 || (nextCode === plus || nextCode === minus) && nextNextCode >= 48 && nextNextCode <= 57)) {
        pos += nextCode === plus || nextCode === minus ? 3 : 2;
        while(pos < length){
            code = value.charCodeAt(pos);
            if (code < 48 || code > 57) {
                break;
            }
            pos += 1;
        }
    }
    return {
        number: value.slice(0, pos),
        unit: value.slice(pos)
    };
};