Regular expression Replace replace operation

Replace substitution operation
Replaces the string to which it is matched.

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Description
$ ~ $999

Represents the content captured by a capturing group. If the capturing group number is greater than the maximum capturing group number in the expression, then DEELX reduces the number of digits so that the capturing group number is less than or equal to the maximum number, while the remaining digits are treated as string constants.

Example:

The current maximum capturing group number is 20, so specifying "$999" will be treated as "$" + "99", and specifying "$" to represent the 15th capturing group will be replaced. If you originally wanted to use "5" as a string constant ("$" + "5"), you could have used $0015 to represent a maximum of 3-bit 10-digit digits. DEELX

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${name}

Represents the content captured by the specified named grouping.

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$$

Represents a $ symbol.

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$&

Represents each match to the content.

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$`

Represents the string that precedes the content in the original string. $ ' Medium ' is the symbol below the top left corner of the keyboard.

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$'

A string that represents the content that is matched to in the original string. The $ ' Medium ' symbol is a single quote.

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$+

Represents the group with the largest number in all "have captures" groupings.

For example: "aaa (b +) |CCC (b +)" When matching "aaabbb", although the largest group is the 2nd group, but the largest "have capture" is the 1th group, at this time the $+ represents $.

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$_

Represents the entire string being replaced. "_" is an underscore.