javascript - 拉丁语中第一个字符的正则表达式不起作用。 为什么？ [重复](Regular expression with first character in latin is not working. Why? [duplicate])

Question

(This question already has answers here) :

((这个问题已经在这里有了答案)

：)

Why can't I use accented characters next to a word boundary?

(为什么我不能在单词边界旁使用带重音符号的字符？)

(5 answers)

(（5个答案）)

Javascript RegExp + Word boundaries + unicode characters (9 answers)

(Javascript RegExp +单词边界+ Unicode字符 （9个答案）)

Javascript - regex - word boundary (\b) issue (3 answers)

(Javascript-正则表达式-单词边界（\ b）问题 （3个答案）)

Closed 7 hours ago .

(7小时前关闭。)

I have a text where I would like to find different words.

(我有一个想在其中找到其他单词的文本。)

The following text is in Portuguese, Brazil, and serves only as a test case:

(以下文本是巴西葡萄牙语，仅用作测试用例：)

Um dia eu conheci Pedro álvares Cabral, e descobri muitas informa??es interessantes.

To find any of the words in the text, I am using the following regular expression:

(要查找文本中的任何单词，我使用以下正则表达式：)

/(Cabral)/i // Finds Cabral
/(dia)/i    // Finds dia
/(Pedro)/i  // Finds Pedro
Etc...

If I need to find more than one word, I do as follows:

(如果需要查找多个单词，请执行以下操作：)

/(informa??es|muitas)/ig

I am testing the functionality of the expression in both JavaScript and using this online utility .

(我正在JavaScript和使用此在线实用程序中测试表达式的功能。)

JavaScript code example:

(JavaScript代码示例：)

 var input = "Um dia eu conheci Pedro álvares Cabral, e descobri muitas informa??es interessantes." var matchRegExp = new RegExp("\\b(coNHECi)\\b", "i"); if(regs = matchRegExp.exec(input)) { console.log('OK'); } else { console.log('NOPE'); } 

THE PROBLEM(问题)

All the words I put into the expression are found, except álvares .

(找到我在表达式中输入的所有单词，除了álvares 。)

For example, I cannot find the word with the following expression:

(例如，我找不到具有以下表达式的单词：)

/(álvares)/i

If I remove the á character, lvares is found.

(如果删除á字符， lvares找到lvares 。)

I would like to:

(我想要：)

1. To know why and for what reason I can't find álvares .

   (要知道为什么以及为什么找不到álvares 。)

2. To know how I can find any word in a text that has the following characters: áàa?áà??éèêéèêíì?íì?óò??óò??úù?úù????? regardless of whether these characters represent the first, last, or any letter of a word.

   (要知道如何在具有以下字符的文本中找到任何单词：áà?áà?ééêééêeêíì??íì?óò??ò??ò??ú?úù??úù??????，无论这些字符代表单词的第一个，最后一个还是任何一个字母。)

  ask by Loa translate from so

Answer 1

等待大神答复