使用replaceText(searchPattern，替换)替换第一次出现的文本 [英] Replace first occurrence of text using replaceText(searchPattern, replacement)

问题描述

我正在尝试使用函数replaceText(searchPattern, replacement)替换Google Doc中第一个出现的段落，但是我似乎找不到正确的RegEx表达式. 如果有人可以帮助我，我将非常感激.

I am trying to replace the first occurrence of a paragraph in Google Doc using the function replaceText(searchPattern, replacement), but I can't seem to find the right RegEx expression. If someone could help me I would really appreciate it.

body.replaceText("^"+paragraph.getText()+"$"," ");

推荐答案

body.ReplaceText()函数替换模式的所有实例，而不仅仅是第一个实例(

The body.ReplaceText() function replaces all instances of a pattern, not just the first instance ( link ).

更好的选择可能是遍历段落以查找具有匹配文本的第一个段落，例如:

A better option may be to loop through the paragraphs to find the first with matching text, like so:

function deleteParagraph(textToRemove) {
  var body = DocumentApp.getActiveDocument().getBody();
 // gets all paragraphs as an array
  var paragraphs = body.getParagraphs()
  for (var i = 0; i < paragraphs.length; i++){
    if (paragraphs[i].getText() === textToRemove){
      paragraphs[i].clear()
      Logger.log(textToRemove + " was removed")
      //stops it looping through any more paragraphs
      break;
    }
  }
}

如果您想使用正则表达式练习，那么www.regexr.com非常方便.

If you want to practice with regular expressions then www.regexr.com is very handy.

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