Question

我正在寻求帮助，允许我的用户缩小某些文字输出的格式，以符合他们的偏好。

示例：

User list Summary:


Title:
- Big Pink

Student:
- Philip J Fry

Grade:
- A

Issues:
- This issue
- That issue

Improvements:
- This thing
- That thing
- The other thing

我希望能够将单个答案缩短到一行，但只留下多行答案。这样就变成了：

User list Summary:

Title: Big Pink
Student: Philip J Fry
Grade: A
Issues:
- This issue
- That issue
Improvements:
- This thing
- That thing
- The other thing

我到目前为止：https://jsfiddle.net/hematogones/0d4g0akh/

感谢您的帮助！

Answer 1

你可以使用这个，使用负向前瞻来确保你只在冒号之后折叠一个带连字符的行，当没有其他人跟随它时：

text.replace(/:\r?\n-\h*(.*)$(?!\r?\n-)/gm, ": $1" ).replace(/^\s*\r?\n/gm,'');

＆＃13;

const text = $("#outPut").val();
$(".switch").on("click", function(){	
    var text_new = "";
    if (this.id == "switchto"){
        text_new = text.replace(/:\r?\n-\h*(.*)$(?!\r?\n-)/gm, ": $1" ).replace(/^\s*\r?\n/gm,'');
        $("#outPut").val(text_new);
    }
    if (this.id == "switchback"){
        $("#outPut").val(text);
    }
});

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<textarea id="outPut" style="width:60%; min-height:180px">
User list Summary:


Title:
- Big Pink

Student:
- Philip J Fry

Grade:
- A

Issues:
- This issue
- That issue

Improvements:
- This thing
- That thing
- The other thing

+ Final score:
- 78%

</textarea>
<br>
<input type="button" class="switch" id="switchto" value="Switch synoptic">
<input type="button" class="switch" id="switchback" value="Switch back">

＆＃13;

正则表达式删除空行，除非存在多行

1 个答案: