请求修改Adobe InDesign JS脚本适配英式日期格式（dd/MM/yyyy）

需求：将英式日期格式（dd/MM/yyyy，如25/12/2022）转换为“日 月份全称 年”格式（如25 December 2022），原脚本仅支持美式日期（mm/DD/yyyy），需调整适配英式格式。

修改思路 #

原脚本直接用new Date(date)解析日期时，会默认把/分隔的日期识别为美式格式，导致英式日期解析错误。需要手动拆分日期字符串，交换日和月的位置后再创建日期对象，确保月份解析正确。

修改后的完整脚本 #

//DESCRIPTION: Convert date format - finds 25/12/2022 and replace it with 25 December 2022
#target indesign;

/*
    by Oleh Melnyk at 5 April 2017
    modified to support dd/MM/yyyy (British date format)
*/

//> START OF doUndoWraper
if (parseFloat(app.version) < 6) // "app.version < 6" if it's running under an earlier version than CS4, as earlier versions don't support "Undo" in scripts
    doUndoWrapper();
else
    app.doScript(doUndoWrapper, ScriptLanguage.JAVASCRIPT, undefined, UndoModes.ENTIRE_SCRIPT, "Change Date Format");
//< END OF doUndoWraper

function doUndoWrapper(){
    function toUnique(a, b, c) { //array,placeholder,placeholder
        b = a.length;
        while (c = --b)
            while (c--) a[b] !== a[c] || a.splice(c, 1);
        return a // not needed ;)
    }
    
   function convertDateFormat(dateStr){
        // 拆分英式日期字符串：dd/MM/yyyy
        const [day, month, year] = dateStr.split('/');
        // JS的Date月份为0-11，需将月份值减1
        var objDate = new Date(year, month - 1, day);
        var monthName = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];
        return  ("0" + objDate.getDate()).slice(-2) + " " + monthName[objDate.getMonth()] + " " + objDate.getFullYear();
    }

    app.findGrepPreferences = app.changeGrepPreferences = NothingEnum.nothing; // clear settings

    app.findChangeGrepOptions.includeLockedLayersForFind = false; // search in Locked Layers
    app.findChangeGrepOptions.includeLockedStoriesForFind = false; // search in Locked Stories
    app.findChangeGrepOptions.includeHiddenLayers = false; // search in HiddenLayers
    app.findChangeGrepOptions.includeMasterPages = false; // search in Master Pages
    app.findChangeGrepOptions.includeFootnotes = true; // search in Footnotes

    app.findGrepPreferences.findWhat = "\\d{2}\\/\\d{2}\\/\\d{4}";

    var whereToSearch = app.activeDocument; // default - search in entire document
    var foundPrep = whereToSearch.findGrep();
    
    var foundElements = [];
    for(var x = 0; x < foundPrep.length; x++){
         foundElements.push(foundPrep[x].contents); 
    }

    var foundUnique = toUnique(foundElements);

    for(var i = 0; i < foundUnique.length; i++){                
        var option = foundUnique[i];                
        app.findGrepPreferences.findWhat = option;           
        app.changeGrepPreferences.changeTo = convertDateFormat(option);        
        whereToSearch.changeGrep();        
        app.findGrepPreferences = app.changeGrepPreferences = NothingEnum.nothing; // clear find what and change to field        
    } 
}

关键修改点 #

• 重写convertDateFormat函数：手动拆分英式日期为日、月、年，按年, 月-1, 日的顺序传入Date构造函数（适配JS日期的0索引月份规则）。
• 更新脚本描述，明确标注支持英式日期格式。

内容的提问来源于stack exchange，提问作者pt-t