Regular Expressions 101

Group key(?P<key>\b[A-Z][ a-z_()]*)

\ba Unicode word boundary

Character Class[A-Z]

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

Character Class[ a-z_()]*

*matches any number of characters from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

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

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

(the literal ( (40₁₀ / 50₈ / 28₁₆)

)the literal ) (41₁₀ / 51₈ / 29₁₆)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

*the literal (32₁₀ / 40₈ / 20₁₆) , repeated any number of times

Group value(?P<value>.+?)

.+?any Unicode character (except for line terminators), repeated at least once

Positive Lookahead(?=\b[A-Z][ a-z_()]*:|$)

1st Alternative\b[A-Z][ a-z_()]*:

\ba Unicode word boundary

Character Class[A-Z]

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

Character Class[ a-z_()]*

*matches any number of characters from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

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

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

(the literal ( (40₁₀ / 50₈ / 28₁₆)

)the literal ) (41₁₀ / 51₈ / 29₁₆)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

2nd Alternative$

$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

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

(?P<key>\b[A-Z][ a-z_()]*): *(?P<value>.+?)(?=\b[A-Z][ a-z_()]*:|$)

New

Latitude (degrees): 4010.44 Longitude (degrees): 58.000 Radiation database: year month H(h)_m 2005 Jan 57.77 2005 Feb 77.76 2005 Mar 120.58 H(h)_m: Irradiation plane (kWh/m2/mo)