nucleotide/lib/src/furanThreeTerm.js

Deal with nucleotides and molecular formula

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.furanThreeTerm = furanThreeTerm;
function furanThreeTerm(nucleotide) {
    // last residue should become a furan
    let parts = nucleotide
        .replaceAll(' ', '')
        .replaceAll(/([\d)a-z])([A-Z][a-z](?=[a-z]))/g, '$1 $2')
        .split(/ /);
    let last = parts.pop();
    if (!last.match(/D[acgt]mp(.*)$/)) {
        // eslint-disable-next-line no-console
        console.warn(`furanThreeTerm can not remove a non monophosphate nucleic acid: ${last}`);
        return parts.join('') + last;
    }
    return parts.join('') + last.replace(/D[acgt]mp(.*)$/, 'Furp');
}
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