regex101: PCRE (Legacy) Match Workspace

Pro

(?m)applies the following effective flags to the remainder of the pattern: gm

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

\ban ASCII word boundary

Application Name:the literal text Application Name: (case sensitive)

\s*any whitespace character, repeated any number of times

Group 1(.+)

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

Non-Capturing Group(?:\n(?!\s*={3,}\r?$).*)*

*repeats the group contents below any number of times:

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

Negative Lookahead(?!\s*={3,}\r?$)

\s*any whitespace character, repeated any number of times

={3,}the literal = (61₁₀ / 75₈ / 3D₁₆) , repeated at least 3 times

\r?optionally matches a carriage return (ASCII 13)

$end of line

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

^start of line

\s*any whitespace character, repeated any number of times

Secret Key:the literal text Secret Key: (case sensitive)

\s*any whitespace character, repeated any number of times

Group 2(.+)

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

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

25 tokens

Regular Expression

(?m)\bApplication Name:\s*(.+)(?:\n(?!\s*={3,}\r?$).*)*^\s*Secret Key:\s*(.+)

New

Application Details for the XYZ application:
    =========================================================

    Application Name:       XYXZW1
    Application Id:         XYZ353WERX

Application Details for the XYZ application:
    =========================================================

    Application Name:       XYXZW2
    Application Id:         XYZ353WERX

Application Details for the XYZ application:
    =========================================================
 
    Application Name:       XYXZW3
    Application Id:         XYZ353WERX
    Secret Key:             XYZ86JBHHSD

Application Details for the XYZ application:
    =========================================================

    Application Name:       XYXZW4
    Application Id:         XYZ353WERX
    Secret Key:             XYZ86JBHHSD