使用JS Script

Question

我想使用Photoshop

将文件名添加到图像中

示例文件名

  

image 123-back.jpg   image 123-front.jpg

我希望从添加到图像的名称中删除-back和-front

到目前为止，我可以添加文件名但无法删除-back和-front

这是我到目前为止的代码

// this script is a variation of the script addTimeStamp.js that is installed with PH7

if ( documents.length > 0 )
{
    var originalDialogMode = app.displayDialogs;
    app.displayDialogs = DialogModes.ERROR;
    var originalRulerUnits = preferences.rulerUnits;
    preferences.rulerUnits = Units.PIXELS;

    try
    {
        var docRef = activeDocument;

        // Now create a text layer at the front
        var myLayerRef = docRef.artLayers.add();
        myLayerRef.kind = LayerKind.TEXT;
        myLayerRef.name = "Filename";

        var myTextRef = myLayerRef.textItem;

        // strip the extension off
        var fileNameNoExtension = docRef.name;
        fileNameNoExtension = fileNameNoExtension.split( "." );
        if ( fileNameNoExtension.length > 1 ) {
            fileNameNoExtension.length--;
        }
        fileNameNoExtension = fileNameNoExtension.join(".");

        myTextRef.contents = '*' + fileNameNoExtension +'*';

        // Set the position of the text  percentages from left first, then from top
        myTextRef.position = new Array( docRef.width / 2.5, docRef.height / 6 );
        myTextRef.size = 15.76;
    }
    catch( e )
    {
        // An error occurred. Restore ruler units, then propagate the error back
        // to the user
        preferences.rulerUnits = originalRulerUnits;
        app.displayDialogs = originalDialogMode;
        throw e;
    }

    // Everything went Ok. Restore ruler units
    preferences.rulerUnits = originalRulerUnits;
    app.displayDialogs = originalDialogMode;
}
else
{
    alert( "You must have a document open to add the filename!" );
}

Answer 1

PhotoShop的JavaScript实现支持String replace()方法。这可以用来满足您的要求。

1）使用replace()

的示例

以下代码段显示了replace()方法的工作原理。

var string1 = "image 123-front"
var result1 = string1.replace("-front", "");
// --> The value for result1 equals: "image 123"

var string2 = "image 123-back"
var result2 = string2.replace("-back", "");
// --> The value for result2 equals: "image 123"

2）将replace()与正则表达式

一起使用的示例

还可以为要匹配的字符串指定Regular Expression，如下所示：

var string3 = "image XYZ-front 123-back"
var result3 = string3.replace(/-(front|back)/g, "");
// --> The value for result3 equals: "image XYZ 123"

正则表达式部分/-(front|back)/g与-front和-back都匹配。

可以找到此正则表达式的进一步说明here。

3）在您的脚本中实施replace()

为清楚起见，您的脚本可以修改如下。它利用上面例2中解释的解决方案：

if ( documents.length > 0 )
{
    var originalDialogMode = app.displayDialogs;
    app.displayDialogs = DialogModes.ERROR;
    var originalRulerUnits = preferences.rulerUnits;
    preferences.rulerUnits = Units.PIXELS;

    try
    {
        var docRef = activeDocument;

        // Now create a text layer at the front
        var myLayerRef = docRef.artLayers.add();
        myLayerRef.kind = LayerKind.TEXT;
        myLayerRef.name = "Filename";

        var myTextRef = myLayerRef.textItem;

        // strip the extension off
        var fileNameNoExtension = docRef.name;
        fileNameNoExtension = fileNameNoExtension.split( "." );
        if ( fileNameNoExtension.length > 1 ) {
            fileNameNoExtension.length--;
        }
        fileNameNoExtension = fileNameNoExtension.join(".");

        // Remove -front and -back from filename
        fileNameNoExtension = fileNameNoExtension.replace(/-(front|back)/g, "");

        myTextRef.contents = '*' + fileNameNoExtension +'*';

        // Set the position of the text  percentages from left first, then from top
        myTextRef.position = new Array( docRef.width / 2.5, docRef.height / 6 );
        myTextRef.size = 15.76;
    }
    catch( e )
    {
        // An error occurred. Restore ruler units, then propagate the error back
        // to the user
        preferences.rulerUnits = originalRulerUnits;
        app.displayDialogs = originalDialogMode;
        throw e;
    }

    // Everything went Ok. Restore ruler units
    preferences.rulerUnits = originalRulerUnits;
    app.displayDialogs = originalDialogMode;
}
else
{
    alert( "You must have a document open to add the filename!" );
}

注意：从第一行开始27仅添加了以下代码段：

// Remove -front and -back from filename
fileNameNoExtension = fileNameNoExtension.replace(/-(front|back)/g, "");