Regular Expressions 101

1st Alternative<(?:textarea|select)[\s\S]*?({{variable:system_version}})[\s\S]*?<\/(?:textarea|select)>

<the literal < (60₁₀ / 74₈ / 3C₁₆)

Non-Capturing Group(?:textarea|select)

1st Alternativetextarea

textareathe literal text textarea (case sensitive)

2nd Alternativeselect

selectthe literal text select (case sensitive)

Character Class[\s\S]*?

*?matches any number of characters from the set below:

\sany whitespace character

\Sany non-whitespace character

Group 1({{variable:system_version}})

{{variable:system_version}}the literal text {{variable:system_version}} (case sensitive)

Character Class[\s\S]*?

*?matches any number of characters from the set below:

\sany whitespace character

\Sany non-whitespace character

<the literal < (60₁₀ / 74₈ / 3C₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Non-Capturing Group(?:textarea|select)

1st Alternativetextarea

textareathe literal text textarea (case sensitive)

2nd Alternativeselect

selectthe literal text select (case sensitive)

>the literal > (62₁₀ / 76₈ / 3E₁₆)

2nd Alternative<(?:input)[\s\S]*?({{variable:system_version}})[\s\S]*?>

<the literal < (60₁₀ / 74₈ / 3C₁₆)

Non-Capturing Group(?:input)

inputthe literal text input (case sensitive)

Character Class[\s\S]*?

*?matches any number of characters from the set below:

\sany whitespace character

\Sany non-whitespace character

Group 2({{variable:system_version}})

{{variable:system_version}}the literal text {{variable:system_version}} (case sensitive)

Character Class[\s\S]*?

*?matches any number of characters from the set below:

\sany whitespace character

\Sany non-whitespace character

>the literal > (62₁₀ / 76₈ / 3E₁₆)

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

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Search reference

Regular Expression

<(?:textarea|select)[\s\S]*?({{variable:system_version}})[\s\S]*?<\/(?:textarea|select)>|<(?:input)[\s\S]*?({{variable:system_version}})[\s\S]*?>

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