regex101: PCRE2 (PHP) Match Workspace

Pro

1st Alternative(?|(?:\G(?!\A)(?<=\|)|^\|\h*\[x\]\h*\|)\h*\K([^|\n]+)(?<=\S)\h*\||\[x]\h*\K([^|\s!]+(?:\h*[^|\s]+)*))

Branch Reset Group(?|(?:\G(?!\A)(?<=\|)|^\|\h*\[x\]\h*\|)\h*\K([^|\n]+)(?<=\S)\h*\||\[x]\h*\K([^|\s!]+(?:\h*[^|\s]+)*))

1st Alternative(?:\G(?!\A)(?<=\|)|^\|\h*\[x\]\h*\|)\h*\K([^|\n]+)(?<=\S)\h*\|

Non-Capturing Group(?:\G(?!\A)(?<=\|)|^\|\h*\[x\]\h*\|)

1st Alternative\G(?!\A)(?<=\|)

\Gstart of current search

Negative Lookahead(?!\A)

\Astart of string

Positive Lookbehind(?<=\|)

\|the literal | (124₁₀ / 174₈ / 7C₁₆)

2nd Alternative^\|\h*\[x\]\h*\|

^start of line

\|the literal | (124₁₀ / 174₈ / 7C₁₆)

\h*any horizontal whitespace character, repeated any number of times

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

xthe literal x (120₁₀ / 170₈ / 78₁₆) (case sensitive)

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

\h*any horizontal whitespace character, repeated any number of times

\|the literal | (124₁₀ / 174₈ / 7C₁₆)

\h*any horizontal whitespace character, repeated any number of times

\Kresets the starting point of the reported match. Any previously consumed characters are no longer included in the final match

Group 1([^|\n]+)

Negated Character Class[^|\n]+

+matches at least one character outside the set below:

|the literal | (124₁₀ / 174₈ / 7C₁₆)

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

Positive Lookbehind(?<=\S)

\Sany non-whitespace character

\h*any horizontal whitespace character, repeated any number of times

\|the literal | (124₁₀ / 174₈ / 7C₁₆)

2nd Alternative\[x]\h*\K([^|\s!]+(?:\h*[^|\s]+)*)

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

x]the literal text x] (case sensitive)

\h*any horizontal whitespace character, repeated any number of times

\Kresets the starting point of the reported match. Any previously consumed characters are no longer included in the final match

Group 1([^|\s!]+(?:\h*[^|\s]+)*)

Negated Character Class[^|\s!]+

+matches at least one character outside the set below:

|the literal | (124₁₀ / 174₈ / 7C₁₆)

\sany whitespace character

!the literal ! (33₁₀ / 41₈ / 21₁₆)

Non-Capturing Group(?:\h*[^|\s]+)*

*repeats the group contents below any number of times:

\h*any horizontal whitespace character, repeated any number of times

Negated Character Class[^|\s]+

+matches at least one character outside the set below:

|the literal | (124₁₀ / 174₈ / 7C₁₆)

\sany whitespace character

2nd Alternative (?|(?:\G(?!\A)\||^\|\h*\[x]\h*!\h*\|)\h*\K([^|\n]+)(?<=\S)\h*|\[x]\h*!\h*\K([^|\s]+(?:\h*[^|\s]+)*))

Branch Reset Group(?|(?:\G(?!\A)\||^\|\h*\[x]\h*!\h*\|)\h*\K([^|\n]+)(?<=\S)\h*|\[x]\h*!\h*\K([^|\s]+(?:\h*[^|\s]+)*))

1st Alternative(?:\G(?!\A)\||^\|\h*\[x]\h*!\h*\|)\h*\K([^|\n]+)(?<=\S)\h*

Non-Capturing Group(?:\G(?!\A)\||^\|\h*\[x]\h*!\h*\|)

1st Alternative\G(?!\A)\|

\Gstart of current search

Negative Lookahead(?!\A)

\Astart of string

\|the literal | (124₁₀ / 174₈ / 7C₁₆)

2nd Alternative^\|\h*\[x]\h*!\h*\|

^start of line

\|the literal | (124₁₀ / 174₈ / 7C₁₆)

\h*any horizontal whitespace character, repeated any number of times

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

x]the literal text x] (case sensitive)

\h*any horizontal whitespace character, repeated any number of times

!the literal ! (33₁₀ / 41₈ / 21₁₆)

\h*any horizontal whitespace character, repeated any number of times

\|the literal | (124₁₀ / 174₈ / 7C₁₆)

\h*any horizontal whitespace character, repeated any number of times

\Kresets the starting point of the reported match. Any previously consumed characters are no longer included in the final match

Group 2([^|\n]+)

Negated Character Class[^|\n]+

+matches at least one character outside the set below:

|the literal | (124₁₀ / 174₈ / 7C₁₆)

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

Positive Lookbehind(?<=\S)

\h*any horizontal whitespace character, repeated any number of times

2nd Alternative\[x]\h*!\h*\K([^|\s]+(?:\h*[^|\s]+)*)

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

x modifier: extended. Ignores unescaped whitespace and comments outside character classes

25 tokens

Regular Expression

(?|(?:\G(?!\A)(?<=\|)|^\|\h*\[x\]\h*\|)\h*\K([^|\n]+)(?<=\S)\h*\||\[x]\h*\K([^|\s!]+(?:\h*[^|\s]+)*))|
(?|(?:\G(?!\A)\||^\|\h*\[x]\h*!\h*\|)\h*\K([^|\n]+)(?<=\S)\h*|\[x]\h*!\h*\K([^|\s]+(?:\h*[^|\s]+)*))

New

Test cases where it should match.
- [x] Example task. | Task ends. [x] Another task.
- [x] ! Example task. | This ends. [x] ! Another task.
- [x] Example task! | Task ends. [x] Another task!
- [x] ! Example task! | This ends. [x] ! Another task!

This is a sentence. [x] Task is here.
Other text. Another [x] ! Task is here.

Must not match in the table.
|       | Task name     |    Plan     |   Actual    |      File      |
| :---- | :-------------| :---------: | :---------: | :------------: |
| [x]   | Task example. | 08:00-08:45  | 08:00-09:00 |  [[task-one]]  |
| [x] ! | Task example. | 08:00-08:45 | 08:00-09:00 |  [[task-one]]  |

Groups expected:
$1: all text after [x]
$2: all text after [x] !

Regex for each group:
$1: [^\|\s]\s*\[x\]\s*\K[^!|\n]*
$2: [^\|\s]\s*\[x\]\s*\!\s*\K[^|\n]*

With the not-capturing group applied:
$1: (?:[^\|\s]\s*\[x\]\s*\K[^!|\n]*)
$2: (?:[^\|\s]\s*\[x\]\s*\!\s*\K[^|\n]*)

The combined expression:
(?:[^\|\s]\s*\[x\]\s*\K([^!|\n]*))|(?:[^\|\s]\s*\[x\]\s*\!\s*\K([^|\n]*))