Minor xml.el tweaks

* lisp/xml.el (xml-name-start-char-re, xml-name-char-re):
No need to call concat.
(xml-name-char-re): Use \u escapes rather than chars inline,
so that the code matches the comments better and is easier
to audit.

diff --git a/lisp/xml.el b/lisp/xml.el
index 44506b971aaf76c026e4ff4d0e0b178a7a7228ed..2337952f0640a081695af1331bc2731463cb150c 100644 (file)
--- a/lisp/xml.el
+++ b/lisp/xml.el
@@ -176,11 +176,11 @@ See also `xml-get-attribute-or-nil'."
 
 ;; [4] NameStartChar
 ;; See the definition of word syntax in `xml-syntax-table'.
-(defconst xml-name-start-char-re (concat "[[:word:]:_]"))
+(defconst xml-name-start-char-re "[[:word:]:_]")
 
 ;; [4a] NameChar ::= NameStartChar | "-" | "." | [0-9] | #xB7
 ;;                 | [#x0300-#x036F] | [#x203F-#x2040]
-(defconst xml-name-char-re (concat "[-0-9.[:word:]:_·̀-ͯ‿⁀]"))
+(defconst xml-name-char-re "[[:word:]:_.0-9\u00B7\u0300-\u036F\u203F\u2040-]")
 
 ;; [5] Name     ::= NameStartChar (NameChar)*
 (defconst xml-name-re (concat xml-name-start-char-re xml-name-char-re "*"))