When inserting a hyphen character into WORDCHARS in config.h, does the 
character need to be preceded with a backslash? I ask because after 
inserting the character, recompiling and reindexing, searching for 
something like "4d01-4108" brings up the correct hit, but also a document 
with 4d and 4108 in separate places (i.e., not joined by the hyphen).  It 
seems that just adding the character to WORDCHARS is ineffective.

David