Marc Mintel
5397309103
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91 lines
3.0 KiB
Plaintext
91 lines
3.0 KiB
Plaintext
import "@formatjs/icu-skeleton-parser";
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import { isArgumentElement, isDateElement, isLiteralElement, isNumberElement, isPluralElement, isPoundElement, isSelectElement, isTagElement, isTimeElement, SKELETON_TYPE, TYPE } from "./types.js";
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export function printAST(ast) {
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return doPrintAST(ast, false);
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}
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export function doPrintAST(ast, isInPlural) {
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const printedNodes = ast.map((el, i) => {
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if (isLiteralElement(el)) {
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return printLiteralElement(el, isInPlural, i === 0, i === ast.length - 1);
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}
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if (isArgumentElement(el)) {
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return printArgumentElement(el);
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}
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if (isDateElement(el) || isTimeElement(el) || isNumberElement(el)) {
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return printSimpleFormatElement(el);
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}
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if (isPluralElement(el)) {
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return printPluralElement(el);
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}
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if (isSelectElement(el)) {
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return printSelectElement(el);
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}
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if (isPoundElement(el)) {
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return "#";
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}
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if (isTagElement(el)) {
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return printTagElement(el);
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}
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});
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return printedNodes.join("");
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}
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function printTagElement(el) {
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return `<${el.value}>${printAST(el.children)}</${el.value}>`;
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}
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function printEscapedMessage(message) {
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return message.replace(/([{}](?:[\s\S]*[{}])?)/, `'$1'`);
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}
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function printLiteralElement({ value }, isInPlural, isFirstEl, isLastEl) {
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let escaped = value;
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// If this literal starts with a ' and its not the 1st node, this means the node before it is non-literal
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// and the `'` needs to be unescaped
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if (!isFirstEl && escaped[0] === `'`) {
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escaped = `''${escaped.slice(1)}`;
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}
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// Same logic but for last el
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if (!isLastEl && escaped[escaped.length - 1] === `'`) {
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escaped = `${escaped.slice(0, escaped.length - 1)}''`;
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}
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escaped = printEscapedMessage(escaped);
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return isInPlural ? escaped.replace("#", "'#'") : escaped;
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}
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function printArgumentElement({ value }) {
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return `{${value}}`;
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}
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function printSimpleFormatElement(el) {
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return `{${el.value}, ${TYPE[el.type]}${el.style ? `, ${printArgumentStyle(el.style)}` : ""}}`;
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}
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function printNumberSkeletonToken(token) {
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const { stem, options } = token;
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return options.length === 0 ? stem : `${stem}${options.map((o) => `/${o}`).join("")}`;
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}
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function printArgumentStyle(style) {
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if (typeof style === "string") {
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return printEscapedMessage(style);
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} else if (style.type === SKELETON_TYPE.dateTime) {
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return `::${printDateTimeSkeleton(style)}`;
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} else {
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return `::${style.tokens.map(printNumberSkeletonToken).join(" ")}`;
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}
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}
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export function printDateTimeSkeleton(style) {
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return style.pattern;
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}
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function printSelectElement(el) {
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const msg = [
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el.value,
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"select",
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Object.keys(el.options).map((id) => `${id}{${doPrintAST(el.options[id].value, false)}}`).join(" ")
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].join(",");
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return `{${msg}}`;
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}
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function printPluralElement(el) {
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const type = el.pluralType === "cardinal" ? "plural" : "selectordinal";
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const msg = [
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el.value,
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type,
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[el.offset ? `offset:${el.offset}` : "", ...Object.keys(el.options).map((id) => `${id}{${doPrintAST(el.options[id].value, true)}}`)].filter(Boolean).join(" ")
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].join(",");
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return `{${msg}}`;
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}
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