在句子中查找确切的字符串 [英] Find Exact String of Characters in Sentence

问题描述

我正在尝试为聊天程序替换字符串中的笑脸字符，并将其替换为正确的图像.我以为我可以使用它，但前提是它是字符串中唯一的字符.我怎样才能找到一个句子中的字符，有 也完全匹配.

I'm trying to replace smiley characters in a string for my chat program and replace them with the correct image.  I thought I had it working but only if it is the only characters in the string.  How can I find the characters in a sentence, has to match exactly too.

这是我当前的正则表达式

This is my current regex

       str1 ="^ \< \:\-O $"；
        var re = new RegExp(str1，"g");
        cleanmsg = cleanmsg.replace(re，'< img类=笑脸" src =" smileys/'+ smileys [index] +'.png''alt ='+ index +'">)')

        str1 = "^\<\:\-O$";
        var re = new RegExp(str1, "g");
        cleanmsg = cleanmsg.replace(re, '<img class="smiley" src="smileys/'+smileys[index]+'.png" alt="'+index+'">')

 

我想做的事的例子:

测试句子:-)在这里找到多个:-)

test sentence :-) find multiple :-) here

返回

测试语句< img>查找多个< img>这里

test sentence <img> find multiple <img> here

推荐答案

那是JavaScript-这是一个.NET-论坛...

that's JavaScript - this is a .NET - Forum...

 

无论如何，使用^可以在输入的开头搜索字符串，而

Whatever, with ^ you search for a string at the beginning of the input and

则是输入的结尾.从图案中删除这些字符.

is the end of the input. Remove these characters from your pattern.

我不知道您与其余\\< \:-O匹配什么，但是如果它是唯一的字符，如果它与您想要的匹配，那么就没有^和

I don't know, what you match with the rest \<\:-O, but if it matches what you want if it's the only characters, then without ^ and

它匹配任何句子中出现的任何内容.

it matches any occurence in any sentence. 

问候，

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