postgrejs/esm/util/escape-literal.js

Professional PostgreSQL client NodeJS

// Ported from PostgreSQL 9.2.4 source code in src/interfaces/libpq/fe-exec.c
export function escapeLiteral(str) {
    let backSlash = false;
    let out = "'";
    let i;
    let c;
    const l = str.length;
    for (i = 0; i < l; i++) {
        c = str[i];
        if (c === "'")
            out += c + c;
        else if (c === '\\') {
            out += c + c;
            backSlash = true;
        }
        else
            out += c;
    }
    out += "'";
    if (backSlash)
        out = ' E' + out;
    return out;
}