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2016-12-13build: add configure options for built-in lpeg supportMarc André Tanner1-1/+1
2016-12-12Allow building lpeg into visMichael Forney1-0/+9
If lpeg is built statically, this allows for a completely static vis binary that still supports syntax highlighting.
2016-12-09vis-lua: add generic way to expose C text objects to LuaMarc André Tanner1-1/+41
Expose text_object_word as an example.
2016-12-09vis-lua: add comment about possibly outdated Lua API documentationMarc André Tanner1-0/+2
2016-12-09vis-lua: expose input key event in insert and replace modesMarc André Tanner1-1/+34
2016-12-08vis-lua: only fail file_save_pre event if explicitly returned falseMarc André Tanner1-1/+1
Previously we would also interpret a missing return value `nil` as is the case when no pre save event handler is subscribed as failure.
2016-12-08vis-lua: move mode constants from vis.MODE_* to vis.modes.*Marc André Tanner1-33/+33
2016-12-08vis-lua: add optional help parameter to mapping functionsMarc André Tanner1-2/+6
2016-12-08vis-lua: expose init event and use it to set default themeMarc André Tanner1-1/+10
The init event is emitted immediately after `visrc.lua` has been sourced, but before any other events have occured, in particular the command line arguments have not yet been processed. Close #422
2016-12-08lua: add simple event multiplexing mechanismMarc André Tanner1-5/+6
The editor core calls into the functions registered in the `vis.events` table which then multiplex the events to all registered event handlers. The first handler which returns a non `nil` value terminates event propagation.
2016-12-07Move all lua related files to lua/ subfolderMarc André Tanner1-5/+13
Also remove the lexers sub directory from the Lua search path. As a result we attempt to open fewer files during startup: $ strace -e open -o log ./vis +q config.h && wc -l log In order to avoid having to modifiy all lexers which `require('lexer')` we instead place a symlink in the top level directory. $ ./configure --disable-lua $ rm -rf lua Should result in a source tree with most lua specifc functionality removed.
2016-12-06vis-lua: more extensive Lua API documentationMarc André Tanner1-30/+192
2016-12-05vis-lua: add preliminary version of LDoc based Lua API documentationMarc André Tanner1-3/+364
A new Makefile target `luadoc` has been added which generates HTML documentation in the doc subfolder using ldoc(1) from https://stevedonovan.github.io/ldoc/ There are still a few problems to resovle, for example the links (e.g. in parameter lists) to our custom types seem to be broken. At this point only the C part of the Lua API is covered and even that is not yet complete.
2016-11-28vis-lua: add file.path property denoting the absolute path to the fileMarc André Tanner1-0/+5
Close #407
2016-11-27vis-lua: lua_pushtring already takes care of NULL stringMarc André Tanner1-16/+4
2016-11-22vis-lua: introduce pre-save hookMarc André Tanner1-0/+18
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.
2016-11-22vis-lua: pass path as second argument to file_save_post event hookMarc André Tanner1-3/+7
The passed path can be different from file.name for instance when opening a file `a` and then doing `:w b` where file.name will be the former and path the latter.
2016-11-21vis-lua: rename file_save event to file_save_postMarc André Tanner1-3/+3
Indicating that the event is triggered *after* a successfull write.
2016-11-14vis-lua: add vis.ui.colors denoting the number of available colorsMarc André Tanner1-0/+26
2016-11-10vis: fix compilation with Lua support disabledMarc André Tanner1-1/+1
2016-11-10vis: change default status bar indication for Windows style line endingsMarc André Tanner1-2/+2
2016-11-10vis-lua: change misnamed attribute values of `file.newlines`Marc André Tanner1-5/+5
Also rename underlying C code.
2016-11-05vis: display Lua package.cpath in :help outputMarc André Tanner1-4/+10
These paths are used to load the Lua LPeg module (lpeg.so) and are thus helpful when diagnosing setup problems in case syntax highlighting does not work.
2016-10-05Fix various issues reported by coverity scanMarc André Tanner1-1/+1
2016-09-19vis-lua: expose file save event to luaMarc André Tanner1-1/+7
Triggered after the new file content has been written to disk.
2016-09-19vis-lua: expose file open event to luaMarc André Tanner1-0/+7
The event is only triggerred for new files read from disk (e.g. splitting an existing window will not cause an event to be emitted).
2016-08-24vis-lua: add win:draw() functionMarc André Tanner1-0/+8
2016-05-26vis: use normalized absolute file names as internal representationMarc André Tanner1-2/+2
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.
2016-05-24vis-lua: cleanup Lua status bar display codeMarc André Tanner1-1/+10
2016-05-24vis: cleanup C status bar display codeMarc André Tanner1-18/+69
2016-05-24vis-lua: improve error handling when loading visrc.luaMarc André Tanner1-3/+25
If loading fails because visrc.lua is not found, then simply display an information message. However if there is a syntax error, display a complete stack trace. This fixes commit 352155889aad57f8cb6d20317ffef81073fb6533.
2016-05-24vis-lua: add debug infrastructure to trace object lifetimeMarc André Tanner1-16/+108
Output will be printed to stdout and can be enabled by: $ make debug CFLAGS=-DDEBUG_LUA=1 $ ./vis > log This commit also tries to make object creation slightly more robust.
2016-05-22vis: only display mode in status bar of active windowMarc André Tanner1-2/+3
2016-05-22vis-lua: introduce light references for short lived objectsMarc André Tanner1-7/+20
Light object references are used to type check, but contrary to full object references they are not stored in the Lua registry. This means that they are not bound to the object lifetime of their corresponding C object. Hence such objects must not be used after they have been free(3)-ed by the editor core. Such lightweight object references are always re-created, thus custom properties will not be stored across subsequent accesses. For now light object references are only used for cursor objects. This should ix the crashes introduced by the recent changes which make heavy use of the Lua API.
2016-05-22vis-lua: fall back to C status bar handling if the Lua implementation is not ↵Marc André Tanner1-17/+20
available
2016-05-22vis-lua: do not report errors recursivelyMarc André Tanner1-0/+4
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.
2016-05-22vis: refactor status line handlingMarc André Tanner1-0/+52
Make window status bar content configurable via Lua.
2016-05-22vis-lua: add win:status functionMarc André Tanner1-0/+10
2016-05-22vis-lua: add vis.recording propertyMarc André Tanner1-0/+4
2016-05-22vis-lua: add window.{width, height} read only propertiesMarc André Tanner1-0/+10
2016-05-22vis-lua: add vis.VERSION propertyMarc André Tanner1-0/+3
It is a string in `git describe` format, as reporte by `vis -v`.
2016-05-22vis: consider :set horizon setting when syntax highlightingMarc André Tanner1-3/+4
2016-05-22vis: move syntax highlighting to pure Lua codeMarc André Tanner1-2/+32
2016-05-22vis-lua: add window.viewport rangeMarc André Tanner1-0/+7
2016-05-22vis-lua: add bindings for new view style functionsMarc André Tanner1-0/+44
2016-05-22vis-lua: cleanup vis.MODE_* constants handlingMarc André Tanner1-30/+19
2016-05-18vis-lua: fail more silently when visrc.lua can not be loadedMarc André Tanner1-1/+2
This prevents opening a separate window to display a full stack trace and improves usage of a vis binary compiled with lua support on a system without the necessary *.lua files.
2016-05-14vis-lua: add win:map function for window local key mappingsMarc André Tanner1-8/+27
Based on a patch by Josh Wainwright. Close #306
2016-05-13vis: clean up key mapping implementationMarc André Tanner1-15/+1
2016-05-13vis-lua: add more restrictive checks for position argumentsMarc André Tanner1-11/+17
Negative and fractional arguments are rejected.
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