^start of line
<the literal < (6010 / 748 / 3C16)
(?i)applies the following effective flags to the remainder of the pattern: gmi i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters
Non-Capturing Group(?:input|textarea|\\w{0,}TextBox|\\w{0,}Field) inputthe literal text input (case insensitive) textareathe literal text textarea (case insensitive) 3rd Alternative\\w{0,}TextBox \\the literal \ (9210 / 1348 / 5C16)
w{0,}the literal w (11910 / 1678 / 7716) (case insensitive), repeated any number of times
TextBoxthe literal text TextBox (case insensitive) 4th Alternative\\w{0,}Field \\the literal \ (9210 / 1348 / 5C16)
w{0,}the literal w (11910 / 1678 / 7716) (case insensitive), repeated any number of times
Fieldthe literal text Field (case insensitive) .*any character (except for line terminators), repeated any number of times
Non-Capturing Group(?:name|id) namethe literal text name (case insensitive) idthe literal text id (case insensitive) =the literal = (6110 / 758 / 3D16)
Non-Capturing Group(?:\"|\') \"the literal " (3410 / 428 / 2216)
\'the literal ' (3910 / 478 / 2716)
\w+any word character, repeated at least once
Non-Capturing Group(?:\"|\') \"the literal " (3410 / 428 / 2216)
\'the literal ' (3910 / 478 / 2716)
.*any character (except for line terminators), repeated any number of times
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