'cpoptions': "_" flag to toggle cw behaviour #6235

`cw` and `cW` behave like `ce` and `cE` respectively. This is
inconsistent compared to `dw` and `dW`.
Introduce a new cpoptions flag "_" to toggle the Vi behavior.

Closes #6234
Patch-by: Christian Brabandt <cblists@256bit.org>

References:
https://github.com/chrisbra/vim-mq-patches/blob/master/cpo_changeword
https://groups.google.com/d/msg/vim_use/aaBqT6ECkA4/ALf4odKzEDgJ
https://groups.google.com/d/msg/vim_dev/Dpn3xtUF16I/T6JcOPKN6usJ
http://www.reddit.com/r/vim/comments/26nut8/why_does_cw_work_like_ce/
This commit is contained in:
raichoo 2017-03-07 23:26:21 +01:00 committed by Justin M. Keyes
parent 59ea30adda
commit 1743df82f9
5 changed files with 13 additions and 7 deletions

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@ -401,8 +401,7 @@ a range of folded lines. "b" and "B" move to the start of the first word or
WORD before the fold.
Special case: "cw" and "cW" are treated like "ce" and "cE" if the cursor is
on a non-blank. This is because "cw" is interpreted as change-word, and a
word does not include the following white space.
on a non-blank. This is Vi-compatible, see |cpo-_| to change the behavior.
Another special case: When using the "w" motion in combination with an
operator and the last word moved over is at the end of a line, the end of

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@ -1829,6 +1829,9 @@ A jump table for the options with a short description can be found at |Q_op|.
character, the cursor won't move. When not included,
the cursor would skip over it and jump to the
following occurrence.
*cpo-_*
_ When using |cw| on a word, do not include the
whitespace following the word in the motion.
*'cscopepathcomp'* *'cspc'*
'cscopepathcomp' 'cspc' number (default 0)

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@ -108,6 +108,7 @@ Some `CTRL-SHIFT-...` key chords are distinguished from `CTRL-...` variants
<C-Tab>, <C-S-Tab>, <C-BS>, <C-S-BS>, <C-Enter>, <C-S-Enter>
Options:
'cpoptions' flags: |cpo-_|
'inccommand' shows interactive results for |:substitute|-like commands
'statusline' supports unlimited alignment sections
'tabline' %@Func@foo%X can call any function on mouse-click

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@ -7193,8 +7193,10 @@ static void nv_wordcmd(cmdarg_T *cap)
// Another strangeness: When standing on the end of a word "ce" will
// change until the end of the next word, but "cw" will change only one
// character! This is done by setting "flag".
cap->oap->inclusive = true;
word_end = true;
if (vim_strchr(p_cpo, CPO_CHANGEW) != NULL) {
cap->oap->inclusive = true;
word_end = true;
}
flag = true;
}
}

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@ -129,9 +129,10 @@
#define CPO_REGAPPEND '>' /* insert NL when appending to a register */
#define CPO_SCOLON ';' /* using "," and ";" will skip over char if
* cursor would not move */
/* default values for Vim and Vi */
#define CPO_VIM "aABceFs"
#define CPO_VI "aAbBcCdDeEfFiIJkKlLmMnoOpPqrRsStuvWxXyZ$!%+<>;"
#define CPO_CHANGEW '_' // "cw" special-case
// default values for Vim and Vi
#define CPO_VIM "aABceFs_"
#define CPO_VI "aAbBcCdDeEfFiIJkKlLmMnoOpPqrRsStuvWxXyZ$!%+<>;_"
/* characters for p_ww option: */
#define WW_ALL "bshl<>[],~"