正则表达式pspad基于其他模式的包含替换行中的项目
[英]Regex pspad to replace item in line based on inclusion of other pattern
问题描述
I need to match an item in a line that, upon finding this, will replace another item in the line. 
我需要匹配一行中的一个项目，找到该项目后，它将替换该行中的另一个项目。 Ex: 例如：
Find all lines containing: code="ap" Replace: quant="*****" with quant="0" 查找包含以下内容的所有行： code="ap" quant="*****"用quant="0"替换quant="*****" quant="0"
Note that the quant field I will need to replace could have multiple variables between the quotes. 请注意，我将需要替换的量子字段在引号之间可能有多个变量。
I tried from another thread: Need: replace "BBB" with "CCC" but only in lines that contain the word "AAA" 我从另一个线程尝试过：需要：用“ CCC”替换“ BBB”，但仅在包含单词“ AAA”的行中
Search: ((?=.*?AAA)[^\\r\\n]*)(BBB) 搜索： ((?=.*?AAA)[^\\r\\n]*)(BBB)
Replace: $1CCC 替换： $1CCC
However, I'm not sure if it will work with the quotes included in my find or how to enter the variable data in the initial quant replace. 但是，我不确定它是否适用于我的发现中包含的引号，或者如何在初始定量替换中输入变量数据。
1 个解决方案
解决方案1
1 2016-05-14 03:04:05
Description 描述
This regex will do the following: 此正则表达式将执行以下操作：
- validate the line contains
code="ap", if the line does not contain this string then no replacements will be made on the line验证该行包含code="ap"，如果该行不包含此字符串，则该行将不进行替换 - find the first
quantity="somevalue"string and replace withquantity="0"找到第一个quantity="somevalue"字符串并替换为quantity="0" - allow
quantity's value to be any value, to include spaces and other special characters允许quantity的值是任何值，包括空格和其他特殊字符 - avoid difficult edge cases 避免困难的情况
- allow the
codeandquantitykey names to appear in any order on the line允许code和quantity键名称以任意顺序显示在行上 - allow the values to be surrounded by single or double quotes or no quotes 允许值用单引号或双引号或不带引号引起来
The Regular Expression 正则表达式
For this regex I used the case insenstive and multiline flags 对于此正则表达式，我使用了区分大小写和多行标记
^(?=(?:[^=\r\n]|='[^']*'|="[^"]*"|=[^'"][^\s]*)*?code=(['"]?)ap\1)((?:[^=\r\n]|='[^']*'|="[^"]*"|=[^'"][^\s]*)*?quantity=)(?:"[^"]*"|'[^']*'|[^\s\n\r]*)(.*?)$
Replace with: 用。。。来代替：
$2"0"$3
Note: to see the image better right click and select open in new window 注意：要更好地查看图像，请右键单击并选择在新窗口中打开
Examples 例子
Source Text 源文本
Note the difficult edge case in the last several lines. 注意最后几行中的困难情况。
code="ap" quantity="SomeValue" other="values"
code="Not ap" quantity="SomeValue"
code="ap" quantity="SomeValue"
quantity="AlsoSomeValue2" code="ap"
code="ap" other=' quantity="Save this value" ' quantity="SomeValue"
code="Not ap" quantity="SomeValue" other=' Code="ap" '
After Replace 更换后
code="ap" quantity="0" other="values"
code="Not ap" quantity="SomeValue"
code="ap" quantity="0"
quantity="0" code="ap"
code="ap" other=' quantity="Save this value" ' quantity="0"
code="Not ap" quantity="SomeValue" other=' Code="ap" '
Explanation 说明
NODE EXPLANATION
----------------------------------------------------------------------
^ the beginning of a "line"
----------------------------------------------------------------------
(?= look ahead to see if there is:
----------------------------------------------------------------------
(?: group, but do not capture (0 or more
times (matching the least amount
possible)):
----------------------------------------------------------------------
[^=\r\n] any character except: '=', '\r'
(carriage return), '\n' (newline)
----------------------------------------------------------------------
| OR
----------------------------------------------------------------------
=' '=\''
----------------------------------------------------------------------
[^']* any character except: ''' (0 or more
times (matching the most amount
possible))
----------------------------------------------------------------------
' '\''
----------------------------------------------------------------------
| OR
----------------------------------------------------------------------
=" '="'
----------------------------------------------------------------------
[^"]* any character except: '"' (0 or more
times (matching the most amount
possible))
----------------------------------------------------------------------
" '"'
----------------------------------------------------------------------
| OR
----------------------------------------------------------------------
= '='
----------------------------------------------------------------------
[^'"] any character except: ''', '"'
----------------------------------------------------------------------
[^\s]* any character except: whitespace (\n,
\r, \t, \f, and " ") (0 or more times
(matching the most amount possible))
----------------------------------------------------------------------
)*? end of grouping
----------------------------------------------------------------------
code= 'code='
----------------------------------------------------------------------
( group and capture to \1:
----------------------------------------------------------------------
['"]? any character of: ''', '"' (optional
(matching the most amount possible))
----------------------------------------------------------------------
) end of \1
----------------------------------------------------------------------
ap 'ap'
----------------------------------------------------------------------
\1 what was matched by capture \1
----------------------------------------------------------------------
) end of look-ahead
----------------------------------------------------------------------
( group and capture to \2:
----------------------------------------------------------------------
(?: group, but do not capture (0 or more
times (matching the least amount
possible)):
----------------------------------------------------------------------
[^=\r\n] any character except: '=', '\r'
(carriage return), '\n' (newline)
----------------------------------------------------------------------
| OR
----------------------------------------------------------------------
=' '=\''
----------------------------------------------------------------------
[^']* any character except: ''' (0 or more
times (matching the most amount
possible))
----------------------------------------------------------------------
' '\''
----------------------------------------------------------------------
| OR
----------------------------------------------------------------------
=" '="'
----------------------------------------------------------------------
[^"]* any character except: '"' (0 or more
times (matching the most amount
possible))
----------------------------------------------------------------------
" '"'
----------------------------------------------------------------------
| OR
----------------------------------------------------------------------
= '='
----------------------------------------------------------------------
[^'"] any character except: ''', '"'
----------------------------------------------------------------------
[^\s]* any character except: whitespace (\n,
\r, \t, \f, and " ") (0 or more times
(matching the most amount possible))
----------------------------------------------------------------------
)*? end of grouping
----------------------------------------------------------------------
quantity= 'quantity='
----------------------------------------------------------------------
) end of \2
----------------------------------------------------------------------
(?: group, but do not capture:
----------------------------------------------------------------------
" '"'
----------------------------------------------------------------------
[^"]* any character except: '"' (0 or more
times (matching the most amount
possible))
----------------------------------------------------------------------
" '"'
----------------------------------------------------------------------
| OR
----------------------------------------------------------------------
' '\''
----------------------------------------------------------------------
[^']* any character except: ''' (0 or more
times (matching the most amount
possible))
----------------------------------------------------------------------
' '\''
----------------------------------------------------------------------
| OR
----------------------------------------------------------------------
[^\s\n\r]* any character except: whitespace (\n,
\r, \t, \f, and " "), '\n' (newline),
'\r' (carriage return) (0 or more times
(matching the most amount possible))
----------------------------------------------------------------------
) end of grouping
----------------------------------------------------------------------
( group and capture to \3:
----------------------------------------------------------------------
.*? any character except \n (0 or more times
(matching the least amount possible))
----------------------------------------------------------------------
) end of \3
----------------------------------------------------------------------
$ before an optional \n, and the end of a
"line"
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