nucleotide/lib/src/baseLossExhaustive.js

Deal with nucleotides and molecular formula

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.baseLossExhaustive = baseLossExhaustive;
function baseLossExhaustive(nucleotide) {
    // any residue can loose a base
    let results = [];
    let parts = nucleotide
        .replaceAll(' ', '')
        .replaceAll(/([\d)A-Za-z])(?=[A-Z])/g, '$1 ')
        .split(/ /);
    let counter = 0;
    for (let i = 0; i < parts.length; i++) {
        let part = parts[i];
        let middle = '';
        if (part.match(/^D[acgtu]mp$/)) {
            middle = 'Drmp';
            counter++;
        }
        else if (part.match(/^[ACGTU]mp$/)) {
            middle = 'Rmp';
            counter++;
        }
        else {
            continue;
        }
        let begin = parts.slice(0, i);
        let end = parts.slice(i + 1);
        results.push(`${begin.join('') + middle + end.join('')}$-B${counter}`);
    }
    return results;
}
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