Regular Expressions 101

Explanation
Pro

ver="the literal text ver=" (case sensitive)

Group 1(ok_[0-9]+)

ok_the literal text ok_ (case sensitive)

Character Class[0-9]+

+matches at least one character from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

" label="the literal text " label=" (case sensitive)

Group 2([a-zA-Z[\] ]*)

Character Class[a-zA-Z[\] ]*

*matches any number of characters from the set below:

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

[the literal [ (91₁₀ / 133₈ / 5B₁₆)

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

the literal (32₁₀ / 40₈ / 20₁₆)

"the literal " (34₁₀ / 42₈ / 22₁₆)

.*any character (except for line terminators), repeated any number of times

h_groupName="the literal text h_groupName=" (case sensitive)

Group 3([a-zA-Z0-9_]*)

Character Class[a-zA-Z0-9_]*

*matches any number of characters from the set below:

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

0-9one character from 0 (48₁₀) to 9 (57₁₀)

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

"the literal " (34₁₀ / 42₈ / 22₁₆)

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

Detailed match information will be displayed here automatically.

25 tokens

ver="(ok_[0-9]+)" label="([a-zA-Z[\] ]*)".*h_groupName="([a-zA-Z0-9_]*)"