Parse function names from PHP source using PHP regex?

Question

I'm using ctags on linux to create tags for source code using vim and the Tlist plug-in. The current ctags function parsing for PHP is woeful so i've downloaded the source for ctags and im going to change the regex that parses the functions.

Because i'm dealing with lots of code that has functions declared in many different ways i need a regex to reliably parse the function names properly.

Do you have one you could share that parses a php function name from a line of source code?

This is the ~~current~~ patched and 'improved' one from the ctags source which misses many functions, especially those marked as final or static first.

(^[ \t]*)(public[ \t]+|protected[ \t]+|private[ \t]+)?(static[ \t]+)?function[ \t]+&?[ \t]*([" ALPHA "_][" ALNUM "_]*)

All of your [ \t] should be \s+. public \n function is perfectly valid. — user229044
– user229044 ♦, Commented Sep 15, 2011 at 21:37
It's not mine it's from the source, i'm working to find more robust solution. I'd though i'd ask before writing a monster ;) — Gary Willoughby
– Gary Willoughby, Commented Sep 15, 2011 at 21:41

rrehbein · Accepted Answer · 2011-09-15 21:49:15Z

1

Would just adding static and final to the possible list of words to ignore, and making it match more then one of the keywords be close enough?

(^[ \t]*)((public|protected|private|static|final)[ \t]*)*function[ \t]+&?[ \t]*([" ALPHA "_][" ALNUM "_]*)

Would mean it would accept junk like 'public public static final function bogus()', but php's syntax checking will reject it, and therefore shouldn't be a significant issue.

answered Sep 15, 2011 at 21:49

rrehbein

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David Chan · Accepted Answer · 2011-09-15 21:59:17Z

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s/^.*\sfunction\s([^\(]*)\(.*$/\1/i

i tested it with some sed

grep -Ri function *| head -10 | sed 's/^.*\sfunction\s\([^\(]*\)(.*$/\1/i'

answered Sep 15, 2011 at 21:59

David Chan

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Gary Willoughby Over a year ago

yeah, just the function name. That's pretty much what i came up with, i think the keywords on the front are just gonna have to be ignored and just check for anything.

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