Regular Expressions 101

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`
<span[^>]+class="[^"]*\btxt_arial_8pt_black\b[^"]*"[^>]*>(.*)</span>
`
gs
<span
matches the characters <span literally (case sensitive)
Match a single character not present in the list below
[^>]
+ matches the previous token between one and unlimited times, as many times as possible, giving back as needed (greedy)
> matches the character > with index 6210 (3E16 or 768) literally (case sensitive)
class="
matches the characters class=" literally (case sensitive)
Match a single character not present in the list below
[^"]
* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)
" matches the character " with index 3410 (2216 or 428) literally (case sensitive)
\b assert position at a word boundary: (^\w|\w$|\W\w|\w\W)
txt_arial_8pt_black
matches the characters txt_arial_8pt_black literally (case sensitive)
\b assert position at a word boundary: (^\w|\w$|\W\w|\w\W)
Match a single character not present in the list below
[^"]
* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)
" matches the character " with index 3410 (2216 or 428) literally (case sensitive)
" matches the character " with index 3410 (2216 or 428) literally (case sensitive)
Match a single character not present in the list below
[^>]
* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)
> matches the character > with index 6210 (3E16 or 768) literally (case sensitive)
> matches the character > with index 6210 (3E16 or 768) literally (case sensitive)
1st Capturing Group
(.*)
.
matches any character
* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)
</span>
matches the characters </span> literally (case sensitive)
Global pattern flags
g modifier: global. All matches (don't return after first match)
s modifier: single line. Dot matches newline characters
Your regular expression does not match the subject string.Try launching the debugger to find out why.

Regular Expression
No Match

`
`
gs

Test String