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It is no longer possible to change the used syntax by assigning to the
`win.syntax = name` field, instead the function win:set_syntax(name)`
should be called.
The distinction between filetype and syntax lexer to use should probably
be clarified/cleaned up at some point.
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Use pull instead of push based model for display code. Previously view.c
was calling into the ui frontend code, with the new scheme this switches
around: the necessary data is fetched by the ui as necessary.
The UI independent display code is moved out of view.c/ui-curses.c into
vis.c. The cell styles are now directly embedded into the Cell struct.
New UI styles are introduced for:
- status bar (focused / non-focused)
- info message
- window separator
- EOF symbol
You will have to update your color themes.
The terminal output code is further abstracted into a generic ui-terminal.c
part which keeps track of the whole in-memory cell matrix and #includes
ui-terminal-curses.c for the actual terminal output. This architecture
currently assumes that there are no overlapping windows. It will also
allow non-curses based terminal user interfaces.
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The macro replay code has since been refactored, making this
obsolete. There is only ever one input queue from which keys
are interpreted.
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$ ./configure --disable-help
shrinks the binary by about 20K on a x86_64 system.
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Some motions should fail (i.e. keep the initial position) when
the specified count can not be satisfied exactly.
Examples include t, f, T, and F.
Fix #497
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Fix `gN` and delimited inner variants when given a count.
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Rather than inserting a newline and then looking for leading white space
of the previous line we now gather the white space before newline insertion.
Also we no longer indent empty lines.
Close #472
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This esentially performs an insertion sort. Rather than iterating the list
from the start every time keep track of the latest change and optmize for
monotonically increasing file positions.
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Terminal.app sets $TERM=xterm-256color and ships a corresponding
terminfo description advocating that it is capable of color changes
to the 256 color palette when in fact it can not.
We introduce a new boolean option "change-256colors" which is
true by default but can be used to disable color changes. It is
automatically set if Terminal.app is detected using $TERM_PROGRAM.
This should fix display artifacts as described in #456.
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Currently the key handling functions do not know through which mapping
they were invoked. As an example the `count` handler exploits the
implementation detail that the input queue is stored in contiguous
memory, meaning `keys[-1]` gives access to the digit being pressed.
This adds infrastructure to keep track of the two most recently processed
keys of the input queue.
The information is guaranteed to be accurate for the initial invocation
of the key handler but will be overwritten in case new keys are pushed
to the input queue (e.g. through vis_keys_feed).
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Fix #372
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The vis_keys_feed function is currently unaffected by this change.
It still creates individual undo points. While this is probably
undesirable from an API point of view, it keeps the lua based tests
that use undo points working.
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For some reason we ended up with two identical functions: buffer_{clear,terminate}.
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The handling of :unmap needs to be revisited at some point.
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Specifies how the current file should be saved, `atomic` which uses
rename(2) to atomically replace the file, `inplace` which truncates the
file and then rewrites it or `auto` which tries the former before falling
back to the latter. The rename method fails for symlinks, hardlinks,
in case of insufficient directory permissions or when either the file
owner, group, POSIX ACL or SELinux labels can not be restored.
The option defaults to `auto`.
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Properly detect unbalanced curly braces and spurious output at the
end of a group.
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Move all signal handling code out of "library" code into user application.
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The first argument is the file object while the second argument denotes
the full path to which it will be written. Path might be `nil` if the
file is going to be written to stdout.
The Lua function is expected to return a boolean value indicating whether
the write operation should proceed or be aborted.
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Indicating that the event is triggered *after* a successfull write.
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We need to push keys individually to the input queue such that
the state machine can advance and record keys into the operator
macro if necessary.
Previously feeding the following input:
isome text<Escape>.
would not work as expected because the complete key stream
was pushed to the input queue at the same time during which
the operator macro was not yet active. Thus the dot command
at the end would have nothing to repeat.
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Do not initalize curses UI before it is actually needed.
Move vis command line argument parsing logic into main.c.
This fixes `vis -v` output and exit status.
Fix #351
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Add another layer of indirection, move actual event generation
code to a dedicated function.
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In preparation to move argument parsing code out of vis.c.
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We first try $SHELL and then fall back to the shell field of the password
file entry (/etc/passwd).
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They both perform a motion before changing mode.
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The language map translation should not take modifiers into account.
For example if `a` is mapped to `b` then `<M-a>` should also be mapped
to `<M-b>`.
Fix #404
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The character following the `r` command in normal mode should be
treated as regular input given in insert/replace mode, that is no
tranformation should be applied. Temporarily disable the language
map for this reason.
Close #382
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Do not override implicit operator macro in command mode.
Fix #334
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Let vis_keys_feed always have an immediate effect. Previously,
if called from a key input handler the keys would just be added
to the input queue and processed once the current key handler
returned.
This also affects the exposed Lua API.
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This is a not yet successful attempt to reduce terminal flickering
when resizing windows as is for example the case when entering
command mode.
UI related debug output can be enabled with:
$ make CFLAGS=-DDEBUG_UI=1
$ ./vis > log
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Try to display a shorthand version in the status bar, this currently
only works for files below the current working directory of the editor
process.
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Displaying an error might create a new window which in turn can
trigger new events (all other windows are resized+redrawn) which
might again cause errors.
There is still no sane way to exit the editor in this case, but
at least the error messages should be readable.
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This caused issues on OpenBSD where it crashed the terminal.
Also on Mac OS X suspend via ^Z (Ctrl-Z) was missing a \r i.e.
the shell prompt was not properly redrawn.
While in principle user interfaces should not have to depend on
libtermkey, in practice this won't be an issue unless we are
adding a non-terminal based UI (which won't happen anytime soon).
This reverts commit 8f92b98848f9366e78c7aa824615bade83971513.
Close #311
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A concrete user interface implementation should not have to depend
on libtermkey. Therefore the vis core now uses an independent instance
to parse keys.
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They behave like an inclusive motion, but only if they are also
linewise (which they are by default).
This should make `yjp` and `ykp` yank both the current and
the next/previous line when the cursor is at the start of
a line.
See also 532f52e9e52b98dc5749396f7353295418e0227a and #237
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This means no event handlers are run for it, hence there is no chance
for recursive errors.
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