tildify.el: Rewrite `tildify-region' and co., add foreach function.

* lisp/textmodes/tildify.el (tildify-foreach-region-outside-env): New
function which calls a callback on portions of the buffer that are
outside of ignored environments.
(tildify-build-regexp): Remove function since it is now
incorporated in `tildify-foreach-region-outside-env' where it is
optimised and simplified by the use of `mapconcat'.
(tildify-tildify): Return number of substitutions made so that…
(tildify-count): …can be removed.
(tildify-find-env): Accept a new PAIRS argument which was
previously looked up in `tildify-ignored-environments-alist' each
time the function was called.  With this change, the lookup is
performed only once in `tildify-foreach-region-outside-env'.
(tildify-region): Greatly simplify the function since now most of
the work is done by `tildify-foreach-region-outside-env'.
(tildify-mode-alist): Simplify slightly by avoiding if and setq
and instead using or.

* tests/automated/tildify-tests.el (tildify-test-find-env-end-re-bug)
(tildify-test-find-env-group-index-bug): Update to support new
signature of the `tildify-foreach-region-outside-env' function.
Namely, it now takes pairs as an argument instead of looking it up in
`tildify-ignored-environments-alist'.

1 files changed, 17 insertions, 0 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 1a6b1cd517c..0abb367f5b8 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,5 +1,22 @@
 2014-06-05  Michal Nazarewicz  <mina86@mina86.com>
 
+        * textmodes/tildify.el (tildify-foreach-region-outside-env): New
+        function which calls a callback on portions of the buffer that are
+        outside of ignored environments.
+        (tildify-build-regexp): Remove function since it is now
+        incorporated in `tildify-foreach-region-outside-env' where it is
+        optimised and simplified by the use of `mapconcat'.
+        (tildify-tildify): Return number of substitutions made so that…
+        (tildify-count): …can be removed.
+        (tildify-find-env): Accept a new PAIRS argument which was
+        previously looked up in `tildify-ignored-environments-alist' each
+        time the function was called.  With this change, the lookup is
+        performed only once in `tildify-foreach-region-outside-env'.
+        (tildify-region): Greatly simplify the function since now most of
+        the work is done by `tildify-foreach-region-outside-env'.
+        (tildify-mode-alist): Simplify slightly by avoiding if and setq
+        and instead using or.
+
         * textmodes/tildify.el (tildify-ignored-environments-alist):
         Optimise environments regexes