harmonized all word-movement and deletion commands: they move/delete until the beginning of words now

* All commands and their documentations were inconsistent.
  * ^W rubbed out to the beginning of words.
  * Shift+Right (fnkeys.tes) moved to the beginning of the next word if
    invoked at the beginning of a word and to the end of the next word otherwise.
  * <W> (and <V> and <Y> by extension) moved to the end of the next word.
  * The cheat sheet would claim that <W> moves to the beginning of the next word.
* Video TECO's <W> command would differ again from everything else.
  With positive arguments, it moved to the beginning of words, while
  with negative it moved to end of words.
  I decided not to copy this behavior.
* It has been decided to adopt a consistent beginning-of-words policy.
  -W therefore differs from Video TECO in moving to the beginning of the
  current or previous word.
* teco_find_words() is now based on parsing the document pointer, instead
  of relying on SCI_WORDENDPOSITION, since the latter cannot actually be
  used to skip strictly non-word characters.
  This requires a constant amount of Scintilla messages but will require fewer
  messages only when moving for more than 3 words.
* The semantics of <W> are therefore now consistent with Vim and Emacs as well.
* Shift+Right/Left is still based on SCI_WORDENDPOSITION, so it's behavior
  differs slightly from <W> for instance at the end of lines, as it will
  stop at linebreaks.
* Unfortunately, these changes will break lots of macros, among others
  the M#rf, M#sp and git.blame macros ("Useful macros" from the wiki).

1 files changed, 6 insertions, 5 deletions

diff --git a/tests/testsuite.at b/tests/testsuite.at
index 1c42fe9..c76c4c5 100644
--- a/tests/testsuite.at
+++ b/tests/testsuite.at
@@ -114,14 +114,15 @@ AT_CHECK([$SCITECO -e "@I/1^J2^J3/J 2^QC :^Q-3\"N(0/0)'"], 0, ignore, ignore)
 AT_CLEANUP
 
 AT_SETUP([Moving by words])
-AT_CHECK([$SCITECO -e "Z= 3J 2W .-11\"N(0/0)'" "$WORDS_EXAMPLE"], 0, ignore, ignore)
+AT_CHECK([$SCITECO -e "Z= 3J 2W .-18\"N(0/0)'" "$WORDS_EXAMPLE"], 0, ignore, ignore)
+AT_CHECK([$SCITECO -e "@I/foo ^J bar/ JW .-6\"N(0/0)'"], 0, ignore, ignore)
 # FIXME: Sooner or later, there will be a shortcut for -W.
-AT_CHECK([$SCITECO -e "Z-4J -2W .-17\"N(0/0)'" "$WORDS_EXAMPLE"], 0, ignore, ignore)
+AT_CHECK([$SCITECO -e "Z-4J -3W .-12\"N(0/0)'" "$WORDS_EXAMPLE"], 0, ignore, ignore)
 AT_CLEANUP
 
 AT_SETUP([Deleting words])
-AT_CHECK([$SCITECO -e "3J 2V .-3\"N(0/0)' Z-20\"N(0/0)'" "$WORDS_EXAMPLE"], 0, ignore, ignore)
-AT_CHECK([$SCITECO -e "Z-4J 2Y .-17\"N(0/0)' Z-21\"N(0/0)'" "$WORDS_EXAMPLE"], 0, ignore, ignore)
+AT_CHECK([$SCITECO -e "3J 2V .-3\"N(0/0)' Z-13\"N(0/0)'" "$WORDS_EXAMPLE"], 0, ignore, ignore)
+AT_CHECK([$SCITECO -e "Z-4J 2Y .-18\"N(0/0)' Z-22\"N(0/0)'" "$WORDS_EXAMPLE"], 0, ignore, ignore)
 AT_CLEANUP
 
 AT_SETUP([Searches])
@@ -171,7 +172,7 @@ AT_CLEANUP
 AT_SETUP([Unicode])
 AT_CHECK([$SCITECO -e "8594@I/Здравствуй, мир!/ Z-17\"N(0/0)' J0A-8594\"N(0/0)'"], 0, ignore, ignore)
 AT_CHECK([$SCITECO -e "8594@^Ua/Здравствуй, мир!/ :Qa-17\"N(0/0)' 0Qa-8594\"N(0/0)'"], 0, ignore, ignore)
-AT_CHECK([$SCITECO -e "@I/Здравствуй, мир!/ JW .-10\"N(0/0)' ^E-20\"N(0/0)' 204:EE .-10\"N(0/0)'"], 0, ignore, ignore)
+AT_CHECK([$SCITECO -e "@I/Здравствуй, мир!/ JW .-12\"N(0/0)' ^E-22\"N(0/0)' 204:EE .-12\"N(0/0)'"], 0, ignore, ignore)
 AT_CHECK([$SCITECO -e "@I/TEST/ @EW/юникод.txt/"], 0, ignore, ignore)
 AT_CHECK([test -f юникод.txt], 0, ignore, ignore)
 AT_CHECK([$SCITECO -e "^^ß-223\"N(0/0) 23Uъ Q[Ъ]-23\"N(0/0)'"], 0, ignore, ignore)