Notepad++ does not do it on mouseover, but does pretty much what you want while typing if autocomplete is on, so typing in spl offers split or splice, while split( offers four formats, the first of which is split(/PATTERN/). Notepadqq is pretty close and available on Linux, which Notepad++ is not. I haven't looked to see whether qq offers the same autocomplete options.

Regards,

John Davies

In reply to Re: Which IDE's show tooltips for Perl builtins? by davies
in thread Which IDE's show tooltips for Perl builtins? by LanX

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