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2017-03-19Fix errors and add ANS Forth 2012 keywordsstutonk1-17/+31
Added all ANS Forth 2012 keywords as defined at http://lars.nocrew.org/forth2012/core.html and removed keywords that were not part of the standard. This necessitated rewriting most of the Strings rules as well as removing some rules not consistent with the standard. Only the s\" form should allow escaping. The list of characters which may appear as part of a keyword has also been expanded where appropriate. Because '.' is a keyword as well as the first chatacter in a string pattern, strings must now be given parsing precedence over keywords to ensure proper highlighting. A few errors were also fixed such as moving the true (which should make keywords case-insensitive) within the word_match function's closing paren. Parens have been removed from the operator list and moved to their correct place as the delimiters for block comments.
2017-03-18Recognize additional Forth filetypestutonk1-1/+1
2017-03-15Make Vis' Solarized theme match the official Vim one.Tim Allen1-2/+2
2017-03-14Restructure display codeMarc André Tanner4-1/+21
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.
2017-03-07lua: add filetype detection for Plan9 rc and derivativesDavid B. Lamkins1-0/+3
Close #513
2017-03-05lua: fix more luacheck warningsMarc André Tanner2-4/+16
2017-03-05lua: reimplement word and file name completion in luaMarc André Tanner3-0/+47
The file name completion does not yet behave the same way as the previous C code because the completion prefix is currently simply calculated using the `iw` text object which does not handle common path elements (e.g. `.`, `/`, `~`, etc).
2017-03-02lua: fix luacheck warnings in pluginsMarc André Tanner1-3/+0
2017-03-02lua: use goto label to mimic continue statementMarc André Tanner1-41/+36
This is a Lua 5.2 feature supported by LuaJIT.
2017-03-02lua: let number increment/decrement handle next numberMarc André Tanner1-37/+47
Operate on the next number to the right of the cursor, for now the matches are not restricted to the current line. Based on a patch from Denis Warsow. Close #509
2017-03-01lua: return nil for invalid text objectsMarc André Tanner1-2/+2
2017-03-01vis-lua: make cursor.pos return nil if cursor position is invalidMarc André Tanner1-1/+3
It remains to be seen whether that is a good idea, but at least it will reveal possible bugs.
2017-02-28lua: reimplement number increment <C-a> and decrement <C-x>Marc André Tanner2-0/+55
Based on a patch by Denis Warsow. Stuff which could probably be improved: - in vim the cursor does not need to be on top of the number, it suffices to be on the same line. - decrementing beyond zero does not work for hexadecimal and octal numbers, vim seems to wrap around in this case. 0x00000000 <C-x> becomes 0xffffffff Close #506
2017-02-28lua: move digraph handling to separate 'plugin'Marc André Tanner3-24/+27
Load a standard plugins directly from vis-std.lua.
2017-02-25lexers: sync with scintillua changeset 594 rev 6e29a8d2a783Marc André Tanner26-60/+71
Stuff which was left out / our local changes include: - lexer.lua: different loading mechanism and style handling - ansi_c.lua: for now we keep the separate token definitions with references to the respective standards. This should highlight file names after #include directives. It will also treat simple, non-nested occurrences of #if 0 ... #endif as a comment. - pkgbuild.lua: the arch specific fields have been kept - all scintilla $(style variables) have been replaced
2017-02-23vis-lua: use shorter type namesMarc André Tanner1-1/+1
2017-02-22lua: add file:match_at method to match LPeg pattern around a positionMarc André Tanner1-0/+31
2017-02-22lua: expose vis:module_exist method, load lexer and lpeg module during startupMarc André Tanner2-21/+25
2017-02-07Allow {} to be nested in shell variablesS. Gilles1-1/+1
This allows lines like : ${FOO:="${bar}/baz"} to be highlighted correctly.
2017-02-02lexer: fix scheme token rule orderingMarc André Tanner1-1/+1
This should fix #412 properly.
2017-02-02update comment and readme about lua pathChristian Hesse1-1/+2
Commit 3570869c removed the lexers sub directory from the Lua search path. Update the comment and readme to reflect this change.
2017-01-31vis: add workaround for broken color handling in Terminal.appMarc André Tanner1-0/+3
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.
2017-01-27vis-digraph: add utility to handle digraphsjosuah1-0/+24
Hook it up via Lua to <C-k> in insert and replace mode. Close #460 #475
2017-01-19lexer: sync with scintillua changeset 582 rev d70a5ee43d38Marc André Tanner106-119/+131
2017-01-19lexer: update READMEMarc André Tanner1-12/+18
2017-01-19lexer: update C lexer to C11 and add POSIX errno constantsMarc André Tanner1-6/+50
The most apparent change is that NULL is now also highlighted, the themes might need to be tweaked a bit. Based on an initial patch by Christian Hesse. Close #307
2017-01-18lexer: add lexer for Parallax Spin languageDavid B. Lamkins2-0/+138
Close #466
2017-01-05lua: adjust C lexer to recognize POSIX typesS. Gilles1-3/+6
2017-01-05theme: pretend that specifying color numbers doesn't workS. Gilles1-16/+16
2016-12-29Add rc lexerMichael Forney1-0/+65
2016-12-14lua: make sure we always load a default themeMarc André Tanner2-1/+2
2016-12-14lua: improve error message when failing to load lpeg/lexer moduleMarc André Tanner2-9/+22
Differentiate between the case where the module is not found and the case where an error occured while loading it. This should make it easier to debug cases in which there is a Lua version mismatch between vis and lpeg.
2016-12-14lua: avoid errors if no theme is setMarc André Tanner1-7/+7
Close #429
2016-12-14lua: add crontab file type and configure it to save in-placeMarc André Tanner1-0/+4
This should fix isses with `crontab -e` editing.
2016-12-14lua: allow per file type :commands being executedMarc André Tanner1-3/+11
2016-12-14lua: use Lua patterns to match file extensionsMarc André Tanner1-125/+120
2016-12-09vis-lua: add comment about possibly outdated Lua API documentationMarc André Tanner1-1/+1
2016-12-09lua: add more mime types for file type detectionMarc André Tanner1-0/+21
2016-12-09vis-lua: expose input key event in insert and replace modesMarc André Tanner1-0/+2
2016-12-08vis-lua: move mode constants from vis.MODE_* to vis.modes.*Marc André Tanner2-11/+11
2016-12-08vis-lua: add optional help parameter to mapping functionsMarc André Tanner2-10/+12
2016-12-08vis-lua: expose init event and use it to set default themeMarc André Tanner3-5/+5
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 Tanner5-19/+115
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.
2016-12-07lua: move non-core code out of vis.luaMarc André Tanner5-591/+585
The following structure is adapted: * visrc.lua entry point for all Lua code * vis.lua only implements the Lua part of the core API * vis-std.lua registers standard event handlers (e.g. syntax highlighting, statusbar handling, theme changes etc). It is sourced from vis.lua. * plugins/* non essential editor functionality, needs to be explicitly enabled by loading it from visrc.lua
2016-12-07Move all lua related files to lua/ subfolderMarc André Tanner138-0/+14858
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.
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