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Add helper methods for populating dateActionsCache/scandCache in the src/scripting_api/util.js file
Rather than inlining all of that code, by moving it into separate helper methods we can utilize `Map.prototype.getOrInsertComputed()` instead. Also, make a couple of the existing class fields actually private.
This commit is contained in:
Jonas Jenwald
parent
5f181fd8b0
commit
f1f1782f38
@ -17,38 +17,46 @@
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import { PDFObject } from "./pdf_object.js";
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class Util extends PDFObject {
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#createDateActionsBound = this.#createDateActions.bind(this);
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#createScandDataBound = this.#createScandData.bind(this);
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#dateActionsCache = null;
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#scandCache = null;
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#months = [
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"January",
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"February",
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"March",
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"April",
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"May",
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"June",
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"July",
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"August",
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"September",
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"October",
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"November",
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"December",
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];
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#days = [
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"Sunday",
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"Monday",
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"Tuesday",
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"Wednesday",
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"Thursday",
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"Friday",
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"Saturday",
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];
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MILLISECONDS_IN_DAY = 86400000;
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MILLISECONDS_IN_WEEK = 604800000;
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constructor(data) {
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super(data);
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this._scandCache = new Map();
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this._months = [
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"January",
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"February",
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"March",
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"April",
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"May",
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"June",
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"July",
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"August",
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"September",
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"October",
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"November",
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"December",
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];
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this._days = [
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"Sunday",
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"Monday",
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"Tuesday",
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"Wednesday",
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"Thursday",
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"Friday",
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"Saturday",
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];
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this.MILLISECONDS_IN_DAY = 86400000;
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this.MILLISECONDS_IN_WEEK = 604800000;
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// used with crackURL
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this._externalCall = data.externalCall;
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}
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@ -71,7 +79,7 @@ class Util extends PDFObject {
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let i = 0;
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return args[0].replaceAll(
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pattern,
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function (match, nDecSep, cFlags, nWidth, nPrecision, cConvChar) {
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function (_, nDecSep, cFlags, nWidth, nPrecision, cConvChar) {
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// cConvChar must be one of d, f, s, x
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if (
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cConvChar !== "d" &&
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@ -217,12 +225,12 @@ class Util extends PDFObject {
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}
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const handlers = {
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mmmm: data => this._months[data.month],
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mmm: data => this._months[data.month].substring(0, 3),
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mmmm: data => this.#months[data.month],
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mmm: data => this.#months[data.month].substring(0, 3),
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mm: data => (data.month + 1).toString().padStart(2, "0"),
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m: data => (data.month + 1).toString(),
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dddd: data => this._days[data.dayOfWeek],
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ddd: data => this._days[data.dayOfWeek].substring(0, 3),
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dddd: data => this.#days[data.dayOfWeek],
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ddd: data => this.#days[data.dayOfWeek].substring(0, 3),
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dd: data => data.day.toString().padStart(2, "0"),
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d: data => data.day.toString(),
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yyyy: data => data.year.toString().padStart(4, "0"),
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@ -251,7 +259,7 @@ class Util extends PDFObject {
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const patterns =
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/(mmmm|mmm|mm|m|dddd|ddd|dd|d|yyyy|yy|HH|H|hh|h|MM|M|ss|s|tt|t|\\.)/g;
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return cFormat.replaceAll(patterns, function (match, pattern) {
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return cFormat.replaceAll(patterns, function (_, pattern) {
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return pattern in handlers
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? handlers[pattern](data)
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: pattern.charCodeAt(1);
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@ -337,71 +345,77 @@ class Util extends PDFObject {
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return buf.join("");
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}
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#createDateActions(cFormat) {
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const actions = [];
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cFormat.replaceAll(
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/(d+)|(m+)|(y+)|(H+)|(M+)|(s+)/g,
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function (_, d, m, y, H, M, s) {
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if (d) {
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actions.push((n, data) => {
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if (n >= 1 && n <= 31) {
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data.day = n;
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return true;
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}
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return false;
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});
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} else if (m) {
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actions.push((n, data) => {
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if (n >= 1 && n <= 12) {
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data.month = n - 1;
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return true;
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}
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return false;
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});
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} else if (y) {
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actions.push((n, data) => {
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if (n < 50) {
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n += 2000;
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} else if (n < 100) {
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n += 1900;
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}
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data.year = n;
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return true;
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});
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} else if (H) {
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actions.push((n, data) => {
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if (n >= 0 && n <= 23) {
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data.hours = n;
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return true;
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}
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return false;
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});
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} else if (M) {
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actions.push((n, data) => {
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if (n >= 0 && n <= 59) {
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data.minutes = n;
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return true;
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}
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return false;
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});
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} else if (s) {
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actions.push((n, data) => {
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if (n >= 0 && n <= 59) {
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data.seconds = n;
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return true;
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}
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return false;
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});
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}
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return "";
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}
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);
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return actions;
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}
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#tryToGuessDate(cFormat, cDate) {
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// We use the format to know the order of day, month, year, ...
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let actions = (this.#dateActionsCache ||= new Map()).get(cFormat);
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if (!actions) {
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actions = [];
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this.#dateActionsCache.set(cFormat, actions);
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cFormat.replaceAll(
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/(d+)|(m+)|(y+)|(H+)|(M+)|(s+)/g,
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function (_match, d, m, y, H, M, s) {
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if (d) {
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actions.push((n, data) => {
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if (n >= 1 && n <= 31) {
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data.day = n;
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return true;
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}
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return false;
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});
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} else if (m) {
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actions.push((n, data) => {
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if (n >= 1 && n <= 12) {
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data.month = n - 1;
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return true;
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}
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return false;
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});
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} else if (y) {
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actions.push((n, data) => {
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if (n < 50) {
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n += 2000;
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} else if (n < 100) {
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n += 1900;
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}
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data.year = n;
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return true;
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});
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} else if (H) {
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actions.push((n, data) => {
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if (n >= 0 && n <= 23) {
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data.hours = n;
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return true;
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}
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return false;
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});
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} else if (M) {
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actions.push((n, data) => {
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if (n >= 0 && n <= 59) {
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data.minutes = n;
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return true;
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}
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return false;
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});
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} else if (s) {
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actions.push((n, data) => {
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if (n >= 0 && n <= 59) {
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data.seconds = n;
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return true;
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}
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return false;
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});
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}
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return "";
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}
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);
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}
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const actions = (this.#dateActionsCache ??= new Map()).getOrInsertComputed(
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cFormat,
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this.#createDateActionsBound
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);
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const number = /\d+/g;
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let i = 0;
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@ -442,11 +456,159 @@ class Util extends PDFObject {
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return this._scand(cFormat, cDate);
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}
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#createScandData(cFormat) {
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const months = this.#months,
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days = this.#days;
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const handlers = {
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mmmm: {
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pattern: `(${months.join("|")})`,
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action: (value, data) => {
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data.month = months.indexOf(value);
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},
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},
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mmm: {
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pattern: `(${months.map(month => month.substring(0, 3)).join("|")})`,
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action: (value, data) => {
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data.month = months.findIndex(
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month => month.substring(0, 3) === value
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);
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},
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},
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mm: {
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pattern: `(\\d{2})`,
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action: (value, data) => {
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data.month = parseInt(value) - 1;
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},
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},
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m: {
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pattern: `(\\d{1,2})`,
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action: (value, data) => {
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data.month = parseInt(value) - 1;
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},
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},
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dddd: {
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pattern: `(${days.join("|")})`,
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action: (value, data) => {
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data.day = days.indexOf(value);
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},
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},
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ddd: {
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pattern: `(${days.map(day => day.substring(0, 3)).join("|")})`,
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action: (value, data) => {
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data.day = days.findIndex(day => day.substring(0, 3) === value);
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},
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},
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dd: {
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pattern: "(\\d{2})",
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action: (value, data) => {
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data.day = parseInt(value);
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},
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},
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d: {
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pattern: "(\\d{1,2})",
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action: (value, data) => {
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data.day = parseInt(value);
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},
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},
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yyyy: {
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pattern: "(\\d{4})",
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action: (value, data) => {
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data.year = parseInt(value);
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},
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},
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yy: {
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pattern: "(\\d{2})",
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action: (value, data) => {
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data.year = 2000 + parseInt(value);
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},
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},
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HH: {
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pattern: "(\\d{2})",
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action: (value, data) => {
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data.hours = parseInt(value);
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},
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},
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H: {
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pattern: "(\\d{1,2})",
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action: (value, data) => {
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data.hours = parseInt(value);
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},
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},
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hh: {
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pattern: "(\\d{2})",
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action: (value, data) => {
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data.hours = parseInt(value);
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},
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},
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h: {
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pattern: "(\\d{1,2})",
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action: (value, data) => {
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data.hours = parseInt(value);
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},
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},
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MM: {
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pattern: "(\\d{2})",
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action: (value, data) => {
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data.minutes = parseInt(value);
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},
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},
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M: {
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pattern: "(\\d{1,2})",
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action: (value, data) => {
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data.minutes = parseInt(value);
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},
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},
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ss: {
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pattern: "(\\d{2})",
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action: (value, data) => {
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data.seconds = parseInt(value);
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},
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},
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s: {
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pattern: "(\\d{1,2})",
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action: (value, data) => {
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data.seconds = parseInt(value);
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},
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},
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tt: {
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pattern: "([aApP][mM])",
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action: (value, data) => {
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const char = value.charAt(0);
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data.am = char === "a" || char === "A";
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},
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},
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t: {
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pattern: "([aApP])",
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action: (value, data) => {
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data.am = value === "a" || value === "A";
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},
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},
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};
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// escape the string
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const escapedFormat = cFormat.replaceAll(/[.*+\-?^${}()|[\]\\]/g, "\\$&");
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const patterns =
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/(mmmm|mmm|mm|m|dddd|ddd|dd|d|yyyy|yy|HH|H|hh|h|MM|M|ss|s|tt|t)/g;
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const actions = [];
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const re = escapedFormat.replaceAll(patterns, function (_, patternElement) {
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const { pattern, action } = handlers[patternElement];
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actions.push(action);
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// If the format is "Hm", then /\d{1,2}\d{1,2}/ is ambiguous so we use
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// a lookahead to ensure that we match the longest possible sequence.
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return pattern.includes(",")
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? `(?=${pattern})\\${actions.length}`
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: pattern;
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});
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return [re, actions];
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}
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_scand(cFormat, cDate, strict = false) {
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if (typeof cDate !== "string") {
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return new Date(cDate);
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}
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if (cDate === "") {
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return new Date();
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}
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@ -460,159 +622,10 @@ class Util extends PDFObject {
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return this.scand("m/d/yy h:MM:ss tt", cDate);
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}
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if (!this._scandCache.has(cFormat)) {
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const months = this._months;
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const days = this._days;
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const handlers = {
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mmmm: {
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pattern: `(${months.join("|")})`,
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action: (value, data) => {
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data.month = months.indexOf(value);
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},
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},
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mmm: {
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pattern: `(${months.map(month => month.substring(0, 3)).join("|")})`,
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action: (value, data) => {
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data.month = months.findIndex(
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month => month.substring(0, 3) === value
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);
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},
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},
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mm: {
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pattern: `(\\d{2})`,
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action: (value, data) => {
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data.month = parseInt(value) - 1;
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},
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},
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m: {
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pattern: `(\\d{1,2})`,
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action: (value, data) => {
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data.month = parseInt(value) - 1;
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},
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},
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dddd: {
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pattern: `(${days.join("|")})`,
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action: (value, data) => {
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data.day = days.indexOf(value);
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},
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},
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ddd: {
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pattern: `(${days.map(day => day.substring(0, 3)).join("|")})`,
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action: (value, data) => {
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data.day = days.findIndex(day => day.substring(0, 3) === value);
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},
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},
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dd: {
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pattern: "(\\d{2})",
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action: (value, data) => {
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data.day = parseInt(value);
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},
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},
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d: {
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pattern: "(\\d{1,2})",
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action: (value, data) => {
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data.day = parseInt(value);
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},
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},
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yyyy: {
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pattern: "(\\d{4})",
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action: (value, data) => {
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data.year = parseInt(value);
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},
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},
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yy: {
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pattern: "(\\d{2})",
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action: (value, data) => {
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data.year = 2000 + parseInt(value);
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},
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},
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HH: {
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pattern: "(\\d{2})",
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action: (value, data) => {
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data.hours = parseInt(value);
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},
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},
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H: {
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pattern: "(\\d{1,2})",
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action: (value, data) => {
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data.hours = parseInt(value);
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},
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},
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hh: {
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pattern: "(\\d{2})",
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action: (value, data) => {
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data.hours = parseInt(value);
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},
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},
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h: {
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pattern: "(\\d{1,2})",
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action: (value, data) => {
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data.hours = parseInt(value);
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},
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},
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MM: {
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pattern: "(\\d{2})",
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action: (value, data) => {
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data.minutes = parseInt(value);
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},
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},
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M: {
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pattern: "(\\d{1,2})",
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action: (value, data) => {
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data.minutes = parseInt(value);
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},
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},
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ss: {
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pattern: "(\\d{2})",
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action: (value, data) => {
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data.seconds = parseInt(value);
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},
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},
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s: {
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||||
pattern: "(\\d{1,2})",
|
||||
action: (value, data) => {
|
||||
data.seconds = parseInt(value);
|
||||
},
|
||||
},
|
||||
tt: {
|
||||
pattern: "([aApP][mM])",
|
||||
action: (value, data) => {
|
||||
const char = value.charAt(0);
|
||||
data.am = char === "a" || char === "A";
|
||||
},
|
||||
},
|
||||
t: {
|
||||
pattern: "([aApP])",
|
||||
action: (value, data) => {
|
||||
data.am = value === "a" || value === "A";
|
||||
},
|
||||
},
|
||||
};
|
||||
|
||||
// escape the string
|
||||
const escapedFormat = cFormat.replaceAll(/[.*+\-?^${}()|[\]\\]/g, "\\$&");
|
||||
const patterns =
|
||||
/(mmmm|mmm|mm|m|dddd|ddd|dd|d|yyyy|yy|HH|H|hh|h|MM|M|ss|s|tt|t)/g;
|
||||
const actions = [];
|
||||
|
||||
const re = escapedFormat.replaceAll(
|
||||
patterns,
|
||||
function (match, patternElement) {
|
||||
const { pattern, action } = handlers[patternElement];
|
||||
actions.push(action);
|
||||
// If the format is "Hm", then /\d{1,2}\d{1,2}/ is ambiguous so we use
|
||||
// a lookahead to ensure that we match the longest possible sequence.
|
||||
return pattern.includes(",")
|
||||
? `(?=${pattern})\\${actions.length}`
|
||||
: pattern;
|
||||
}
|
||||
);
|
||||
|
||||
this._scandCache.set(cFormat, [re, actions]);
|
||||
}
|
||||
|
||||
const [re, actions] = this._scandCache.get(cFormat);
|
||||
const [re, actions] = (this.#scandCache ??= new Map()).getOrInsertComputed(
|
||||
cFormat,
|
||||
this.#createScandDataBound
|
||||
);
|
||||
|
||||
const matches = new RegExp(`^${re}$`, "g").exec(cDate);
|
||||
if (!matches || matches.length !== actions.length + 1) {
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user