New ex commands: 'tcd', 'tchdir'
Changed Vimscript functions: 'haslocaldir', 'getcwd'
The ex-commands ':tcd' and ':tchdir' are the tab-local equivalents of
':lcd' and ':lchdir'. There are no new Vimscript functions introduced,
instead the functions 'haslocaldir' and 'getcwd' take in optional
arguments. See the documentation for details
Since there is now different levels of local directory a simple boolean
at source level is no longer sufficient; a new enumeration type is used
for the scope-level from now on.
The documentation has been accommodated for these new commands and
functional tests have been written to test the feature.
Also removes a note regarding the performance of `empty(long_list)` vs
`len(long_list) == 0` because this has nothing to do with the actual state:
first checks that list is not NULL and pointer to its first element is also not
NULL, second gets length by comparing list with NULL and falls back to
`tv->vval.v_list->lv_len` if not. `len(long_list)` *may* still be *slightly*
slower, but the slow down has nothing to do with the length of the list, is
hardly noticeable and depends on how good compiler is at inlining and what
exactly have author of the plugin written (I mean `len(long_list) == 0` vs
`empty(long_list)` vs `!len(long_list)`).
The previous defaults were including the nvim suffix, causing it to
apear twice in the final paths.
kXDGDataHome and kXDGConfigHome are now set as %LOCALAPPDATA%,
kXDGCacheHome is set as $TEMP.
In Windows there is no distinction between configuration and data
storage, but we don't want to place all files under the same path.
get_xdg_home() now appends a different path suffix for kXDGDataHome.
- Configuration files are saved under %LOCALAPPDATA%\nvim
- Data files are saved under %LOCALAPPDATA%\nvim-data
Add an extra argument to these functions to set w:quickfix_title.
This is a modified version of a patch from vim_dev. Discussion here:
https://groups.google.com/forum/#!topic/vim_dev/X7VVPd4Do5s
Credits go to Christian "chrisbra" Brabandt and Daniel "blueyed" Hahler.
