我试图在Apple脚本编辑器中编写一个JXA脚本,该脚本使用LZ算法压缩字符串并将其写入文本(JSON)文件:
var story = "Once upon a time in Silicon Valley..."
var storyC = LZString.compress(story)
var data_to_write = "{\x22test\x22\x20:\x20\x22"+storyC+"\x22}"
app.displayAlert(data_to_write)
var desktopString = app.pathTo("desktop").toString()
var file = `${desktopString}/test.json`
writeTextToFile(data_to_write, file, true)
一切正常,除了LZ压缩的字符串只是转换为一组“?”到达输出文件 test.json 的时间。
它应该像这样:
{"test" : "㲃냆Њޱᐈ攀렒삶퓲ٔ쀛䳂䨀푖㢈Ӱນꀀ"}
相反,它看起来像:
{"test" : "????????????????????"}
我感觉转换是在 writeTextToFile()函数使用的 app.write 命令中进行的(我从{{3} }):
var app = Application.currentApplication()
app.includeStandardAdditions = true
function writeTextToFile(text, file, overwriteExistingContent) {
try {
// Convert the file to a string
var fileString = file.toString()
// Open the file for writing
var openedFile = app.openForAccess(Path(fileString), { writePermission: true })
// Clear the file if content should be overwritten
if (overwriteExistingContent) {
app.setEof(openedFile, { to: 0 })
}
// Write the new content to the file
app.write(text, { to: openedFile, startingAt: app.getEof(openedFile) })
// Close the file
app.closeAccess(openedFile)
// Return a boolean indicating that writing was successful
return true
}
catch(error) {
try {
// Close the file
app.closeAccess(file)
}
catch(error) {
// Report the error is closing failed
console.log(`Couldn't close file: ${error}`)
}
// Return a boolean indicating that writing was successful
return false
}
}
是否有 app.write 的替代命令来维护LZ压缩字符串/更好的方式来完成我想做的事情?
此外,我正在使用 readFile()函数(也来自Apple's Mac Automation Scripting Guide)将LZ字符串重新加载到脚本中:
function readFile(file) {
// Convert the file to a string
var fileString = file.toString()
// Read the file and return its contents
return app.read(Path(fileString))
}
但不返回:
{"test" : "㲃냆Њޱᐈ攀렒삶퓲ٔ쀛䳂䨀푖㢈Ӱນꀀ"}
正在返回:
"{\"test\" : \"㲃냆੠Њޱᐈ攀렒삶퓲ٔ쀛䳂䨀푖㢈Ӱນꀀ\"}"
有人也知道解决办法吗?
我知道可以Scripting Guide,所以解决方案就在其中吗?
我刚开始使用JavaScript,所以我承认尝试掌握Objective-C或Swift远远超出了我的范围。
我期待您可能提供给我的任何解决方案和/或指示。预先感谢!
答案 0 :(得分:0)
经过进一步的Googl'ing操作后,我遇到了以下两个帖子:
因此,我相应地更改了脚本。
writeTextToFile()现在看起来像:
function writeTextToFile(text, file) {
// source: https://stackoverflow.com/a/44293869/11616368
var nsStr = $.NSString.alloc.initWithUTF8String(text)
var nsPath = $(file).stringByStandardizingPath
var successBool = nsStr.writeToFileAtomicallyEncodingError(nsPath, false, $.NSUTF8StringEncoding, null)
if (!successBool) {
throw new Error("function writeFile ERROR:\nWrite to File FAILED for:\n" + file)
}
return successBool
};
readFile()如下:
ObjC.import('Foundation')
const readFile = function (path, encoding) {
// source: https://github.com/JXA-Cookbook/JXA-Cookbook/issues/25#issuecomment-271204038
pathString = path.toString()
!encoding && (encoding = $.NSUTF8StringEncoding)
const fm = $.NSFileManager.defaultManager
const data = fm.contentsAtPath(pathString)
const str = $.NSString.alloc.initWithDataEncoding(data, encoding)
return ObjC.unwrap(str)
};
都使用Objective-C来克服 app.write 和 app.read 无法处理UTF-8的问题。