Backslash cleanup in Elisp source files

This patch should not change behavior.  It typically omits backslashes
where they are redundant (e.g., in the string literal "^\$").
In a few places, insert backslashes where they make regular
expressions clearer: e.g., replace "^\*" (equivalent to "^*") with
"^\\*", which has the same effect as a regular expression.
Also, use ‘\ %’ instead of ‘\%’ when avoiding confusion with SCCS IDs,
and similarly use ‘\ $’ instead of ‘\$’ when avoiding confusion with
RCS IDs, as that makes it clearer that the backslash is intended.

1 files changed, 4 insertions, 4 deletions

diff --git a/lisp/language/japan-util.el b/lisp/language/japan-util.el
index 2871ec8f974..bdd8853d4dc 100644
--- a/lisp/language/japan-util.el
+++ b/lisp/language/japan-util.el
@@ -102,7 +102,7 @@ HANKAKU-KATAKANA belongs to `japanese-jisx0201-kana'.")
     (?$B!-(B ?') (?$B!.(B ?`) (?$B!0(B ?^) (?$B!2(B ?_) (?$B!<(B ?- ?(I0(B) (?$B!=(B ?-) (?$B!>(B ?-)
     (?$B!?(B ?/) (?$B!@(B ?\\) (?$B!A(B ?~)  (?$B!C(B ?|) (?$B!F(B ?`) (?$B!G(B ?') (?$B!H(B ?\") (?$B!I(B ?\")
     (?\$B!J(B ?\() (?\$B!K(B ?\)) (?\$B!N(B ?[) (?\$B!O(B ?]) (?\$B!P(B ?{) (?\$B!Q(B ?})
-    (?$B!R(B ?<) (?$B!S(B ?>) (?\$B!V(B nil ?\(I"(B) (?\$B!W(B nil ?\(I#(B) 
+    (?$B!R(B ?<) (?$B!S(B ?>) (?\$B!V(B nil ?\(I"(B) (?\$B!W(B nil ?\(I#(B)
     (?$B!\(B ?+) (?$B!](B ?-) (?$B!a(B ?=) (?$B!c(B ?<) (?$B!d(B ?>)
     (?$B!l(B ?') (?$B!m(B ?\") (?$B!o(B ?\\) (?$B!p(B ?$) (?$B!s(B ?%) (?$B!t(B ?#) (?$B!u(B ?&) (?$B!v(B ?*)
     (?$B!w(B ?@)
@@ -175,9 +175,9 @@ belongs to `japanese-jisx0208', ASCII belongs to `ascii'.")
 The argument may be a character or string.  The result has the same type.
 The argument object is not altered--the value is a copy.
 Optional argument HANKAKU t means to convert to `hankaku' Katakana
- \(`japanese-jisx0201-kana'), in which case return value
- may be a string even if OBJ is a character if two Katakanas are
- necessary to represent OBJ."
+\(`japanese-jisx0201-kana'), in which case return value
+may be a string even if OBJ is a character if two Katakanas are
+necessary to represent OBJ."
   (if (stringp obj)
       (japanese-string-conversion obj 'japanese-katakana-region hankaku)
     (or (get-char-code-property obj (if hankaku 'jisx0201 'katakana))