php - Regex starts with x or x prefixed or suffixed -


i'm trying pattern match string following convert every line list item <li>:

-give on result &second new text -the third text  paragraph without list.  -new list here

in natural language: match every string starts - , ended new line sign \n

i tried following pattern works fine:

/^([-|-]\w+\s*.*)?\n*$/gum

of course can write without square brackets ^(-\w+\s*.*)?\n*$ debugging used described.

in example above, when replaces second - & ^([-|&]\w+\s*.*)?\n*$ works fine , mtaches the second line of smaple string. however, not able make matches - prefixed white space or suffixed white space.

i changed sample string to:

- give on result &second new text  -the third text  paragraph without list.  -new list here

and tried following pattern:

/^([-|\- |&| -]\w+\s*.*)?\n*$/gum

however, failed match suffixed or prefixed - white space.

here are live demo original working pattern:

^(\h*(?:-|&)\h*\w+\s*.*)\n*$

you can try this.| inside [] has no special meaning.see demo.

https://regex101.com/r/ns2lt4/3

a string may start whitespace, should have either - or & may have spaces ahead. should have @ least 1 alphanumeric characters may have space ahead. can have or nothing. in end, eat newlines consume or none if can't.


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