Fix bugs found by 2019-09-29 regexp scanner

Problems reported by Mattias Engdegård in:
https://lists.gnu.org/r/emacs-devel/2019-09/threads.html
* lisp/calendar/iso8601.el (iso8601--year-match)
(iso8601--full-date-match, iso8601--without-day-match)
(iso8601--week-date-match, iso8601--ordinal-date-match)
(iso8601--zone-match):
* lisp/textmodes/rst.el (rst-re-alist-def):
Put ‘-’ at the end of bracketed ranges, following the style
suggestion in the Elisp manual.
(iso8601--time-match): Use \([0-9]*\) instead of \([0-9]+\)?
to pacify the regexp scanner.
(iso8601-parse-time): Adjust accordingly.
* lisp/language/burmese.el (burmese-composable-pattern):
* lisp/language/indian.el (devanagari-composable-pattern)
(bengali-composable-pattern, gurmukhi-composable-pattern)
(gujarati-composable-pattern, oriya-composable-pattern)
(telugu-composable-pattern, kannada-composable-pattern)
(malayalam-composable-pattern):
Prefer [ab] to [a-b] when the characters differ by 1,
to pacify the regexp scanner.
* lisp/language/burmese.el (burmese-composable-pattern):
Fix missing-‘\u’ typos.
* lisp/language/indian.el (gurmukhi-composable-pattern):
Fix missing-‘\’ typo.
* lisp/language/tibetan.el (tibetan-regexp):
Quote ‘+’ in regexp to pacify the regexp scanner.  Simplify.
* lisp/textmodes/rst.el (rst-re-alist-def): Fix ‘[]-'...]’
typo by putting the ‘-’ at end of the bracketed expression.

1 files changed, 4 insertions, 4 deletions

diff --git a/lisp/textmodes/rst.el b/lisp/textmodes/rst.el
index 88c44c06da0..b7438fbb109 100644
--- a/lisp/textmodes/rst.el
+++ b/lisp/textmodes/rst.el
@@ -388,8 +388,8 @@ in parentheses follows the development revision and the time stamp.")
                                         ; item tag.
 
     ;; Inline markup (`ilm')
-    (ilm-pfx (:alt "^" hws-prt "[-'\"([{<‘“«’/:]"))
-    (ilm-sfx (:alt "$" hws-prt "[]-'\")}>’”»/:.,;!?\\]"))
+    (ilm-pfx (:alt "^" hws-prt "['\"([{<‘“«’/:-]"))
+    (ilm-sfx (:alt "$" hws-prt "[]'\")}>’”»/:.,;!?\\-]"))
 
     ;; Inline markup content (`ilc')
     (ilcsgl-tag "\\S ") ; A single non-white character.
@@ -431,7 +431,7 @@ in parentheses follows the development revision and the time stamp.")
     (fld-tag ":" fldnam-tag ":") ; A field marker.
 
     ;; Options (`opt')
-    (optsta-tag (:alt "[-+/]" "--")) ; Start of an option.
+    (optsta-tag (:alt "[+/-]" "--")) ; Start of an option.
     (optnam-tag "\\sw" (:alt "-" "\\sw") "*") ; Name of an option.
     (optarg-tag (:shy "[ =]\\S +")) ; Option argument.
     (optsep-tag (:shy "," hws-prt)) ; Separator between options.
@@ -457,7 +457,7 @@ in parentheses follows the development revision and the time stamp.")
                                        ; tag.
 
     ;; Symbol (`sym')
-    (sym-prt "[-+.:_]") ; Non-word part of a symbol.
+    (sym-prt "[+.:_-]") ; Non-word part of a symbol.
     (sym-tag (:shy "\\sw+" (:shy sym-prt "\\sw+") "*"))
 
     ;; URIs (`uri')