@zsnout/ithkuil/parse/referential/referent-list.js

A set of tools which can generate and parse romanized Ithkuil text and which can generate Ithkuil script from text and JSON data.

import { ALL_REFERENTS, REFERENT_TO_ITHKUIL_MAP, } from "../../generate/referential/referent/referent.js";
const ALL_REFERENTS_REVERSED = /* @__PURE__ */ ALL_REFERENTS.slice().reverse();
const PERSPECTIVES = [
    ["ļ", "G"],
    ["tļ", "G"],
    ["ç", "N"],
    ["x", "N"],
    ["w", "A"],
    ["y", "A"],
];
/**
 * Parses a referent list (e.g. `"sml"`).
 *
 * @param list The referent list to be parsed.
 * @returns The parsed `ReferentList`.
 */
export function parseReferentList(list) {
    const output = [];
    outer: while (list.length) {
        for (const referent of ALL_REFERENTS_REVERSED) {
            const value = REFERENT_TO_ITHKUIL_MAP.false[referent];
            if (list.startsWith(value)) {
                output.push(referent);
                list = list.slice(value.length);
                continue outer;
            }
        }
        throw new Error("Invalid referent: " + list + ".");
    }
    if (output.length == 0) {
        throw new Error("Invalid referent: " + list + ".");
    }
    return output;
}
/**
 * Parses a referent list along with an optional perspective (e.g. `"smlx"`).
 *
 * @param list The referent list and perspective to be parsed.
 * @param isReferentialAffix Whether the referent list is from a referential
 *   affix.
 * @returns An array containing two items: an array of parsed referents, and an
 *   optional perspective.
 */
export function parseReferentListAndPerspective(list, isReferentialAffix) {
    let perspective;
    for (const [value, persp] of PERSPECTIVES) {
        if (isReferentialAffix && persp == "A") {
            continue;
        }
        if (list.startsWith(value)) {
            list = list.slice(value.length);
            perspective = persp;
            break;
        }
        if (list.endsWith(value)) {
            list = list.slice(0, -value.length);
            perspective = persp;
            break;
        }
    }
    const output = [];
    outer: while (list.length) {
        for (const referent of ALL_REFERENTS_REVERSED) {
            const value = REFERENT_TO_ITHKUIL_MAP[`${isReferentialAffix}`][referent];
            if (list.startsWith(value)) {
                output.push(referent);
                list = list.slice(value.length);
                continue outer;
            }
        }
        throw new Error("Invalid referent: " + list + ".");
    }
    if (output.length == 0) {
        throw new Error("Invalid referent: " + list + ".");
    }
    return [output, perspective];
}