Tip: speeding up taglist()

I just discovered that when using the taglist() function to search
for an exact tag, bracketing the tag with '^' and '$' can make a
tremendous difference in execution speed. I am currently developing
code in a project that has a 1.5 GB tags file. Using taglist() to
search for a file name without using those anchors takes 19 seconds;
with them, 0.03 seconds.

The ":help taglist()" entry mentions using '^' and '$' to get an
exact match, but says nothing about performance. Is this something
that should be included in the documentation, or would it just lead
to documentation bloat?

Regards,
Gary

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