regex101: PCRE (Legacy) Match Workspace

Pro

^start of line

Character Class[\d.]+

+matches at least one character from the set below:

\da digit

.the literal . (46₁₀ / 56₈ / 2E₁₆)

Non-Capturing Group(?:.|[\r\n])*?

*?repeats the group contents below any number of times:

1st Alternative.

.any character (except for line terminators)

2nd Alternative[\r\n]

Character Class[\r\n]

\ra carriage return (ASCII 13)

\na line-feed (newline) character (ASCII 10)

Positive Lookahead(?=[.\x20\t]+\d{2,3}$)

Character Class[.\x20\t]+

+matches at least one character from the set below:

.the literal . (46₁₀ / 56₈ / 2E₁₆)

\x20the literal (20₁₆ / 40₈ / 32₁₀)

\ta tab character (ASCII 9)

\d{2,3}a digit, repeated between 2 and 3 times

$end of line

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

25 tokens

Regular Expression

^[\d.]+(?:.|[\r\n])*?(?=[.\x20\t]+\d{2,3}$)

New

5.2  Initializing the I/O Base Registers  ................................. 51
5.3  Hiding and Function Disable troller Hub (PCH) Internal Devices  52
5.3.1  Fuse Disabled, Static Disabled, Non-Static Function Disable Device
Handling  ................................................................. 53
8.4  SERR# Generation  ..................................................  102
8.5  PCI Firmware Spec 3.0 Support  .....................................  103
8.6  ACPI Table and Methods for PCI Express* Support  ...................  103