diff options
| -rw-r--r-- | parsebib.el | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/parsebib.el b/parsebib.el index 33e75a3..d66b39a 100644 --- a/parsebib.el +++ b/parsebib.el @@ -151,8 +151,14 @@ combination, the field inherits from the same-name field in the cross-referenced entry. If no inheritance should take place, the target field is set to the symbol `none'.") -(defconst parsebib--bibtex-identifier "[^^\"@\\&$#%',={}() \t\n\f]+" "Regexp describing a licit BibTeX identifier.") -(defconst parsebib--key-regexp "[^^\"@\\&$#%',={} \t\n\f]+" "Regexp describing a licit key.") +;; Regexes describing BibTeX identifiers and keys. Note that while $ ^ & are +;; valid in BibTeX keys, they may nonetheless be problematic, because they are +;; special for TeX. The difference between `parsebib--bibtex-identifier' and +;; `parsebib--key-regexp' are the parentheses (), which are valid in keys. It may in +;; fact not be necessary (or desirable) to distinguish the two, but until +;; someone complains, I'll keep it this way. +(defconst parsebib--bibtex-identifier "[^\"@\\#%',={}() \t\n\f]+" "Regexp describing a licit BibTeX identifier.") +(defconst parsebib--key-regexp "[^\"@\\#%',={} \t\n\f]+" "Regexp describing a licit key.") (defconst parsebib--entry-start "^[ \t]*@" "Regexp describing the start of an entry.") ;; Emacs 24.3 compatibility code. |