Method format

src/helpers/parser.js:15–44

(sources)

    }

    format(sources) {
        let str = "Error: " + this.message;
        if (this.location) {
            let src = null;
            const st = sources.find(s => s.source === this.location.source);
            if (st) {
                src = st.text.split(/\r\n|\n|\r/g);
            }
            const s = this.location.start;
            const offset_s = (this.location.source && (typeof this.location.source.offset === "function"))
                ? this.location.source.offset(s)
                : s;
            const loc = this.location.source + ":" + offset_s.line + ":" + offset_s.column;
            if (src) {
                const e = this.location.end;
                const filler = "".padEnd(offset_s.line.toString().length, " ");
                const line = src[s.line - 1];
                const last = s.line === e.line ? e.column : line.length + 1;
                const hatLen = (last - s.column) || 1;
                str += "\n --> " + loc + "\n"
            + filler + " |\n"
            + offset_s.line + " | " + line + "\n"
            + filler + " | " + "".padEnd(s.column - 1, " ")
            + "".padEnd(hatLen, "^");
            } else {
                str += "\n at " + loc;
            }
        }
        return str;
    }

    static buildMessage(expected, found) {
        function hex(ch) {