reftex-index-phrases-phrase-regexp1

reftex-index-phrases-phrase-regexp1 is a variable defined in `reftex-index.el'.
Its value is

"^\\(\\S-?\\)\\(	\\)\\([^	
]*\\S-\\)\\([ 	]*\\)$"

• This variable may be risky if used as a file-local variable.

Documentation:
Regular expression matching phrases which have no separate index key.