Issue854: Regular expression construct for matching beginning and end of symbol is missing

classification

Title	Regular expression construct for matching beginning and end of symbol is missing
Type	feature	Module	core code 21.5
Severity	some work obstructed	Platform	N/A
Keywords	GNU compatibility	Nosy List	matsl

explanation

process

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Status	new	Reason
Superseder
Priority	normal	Assigned To

Created on 2013-04-13.23:06:26 by matsl, last changed 2013-04-13.23:06:26 by matsl.

msg2483

[hidden] ([hidden])

Date: 2013-04-13.23:06:25

GNU has \_< and  \_> that matches the empty string, but only at the beginning or 
end of a symbol. 

The doc string for \_< reads: A symbol is a sequence of one or more symbol-
constituent characters.  A symbol-constituent character is a character whose 
syntax is either `w' or `_'.  `\_<' matches at the beginning of the buffer only 
if a symbol-constituent character follows.

\_> has the corresponding description for the end of a symbol.

History
Date	User	Action	Args
2013-04-13 23:06:26	matsl	create