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2016-11-22vis-lua: also emit save events when writing to stdoutMarc André Tanner1-0/+6
The path argument will be nil.
2016-11-22vis-lua: introduce pre-save hookMarc André Tanner1-0/+5
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 Tanner1-1/+1
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 Tanner1-1/+1
Indicating that the event is triggered *after* a successfull write.
2016-11-21sam: change default addresses used for commands in normal modeMarc André Tanner1-11/+12
Except for special commands like `w` and `wq` treat the cursor as an implicit one character selection to which the command is applied.
2016-11-19sam: change default address of "s" command to current lineMarc André Tanner1-1/+1
2016-11-16sam: use default shell command for <, >, | and ! when applicapleMarc André Tanner1-3/+9
If the shell command is omitted, the last shell command (of any type) is substituted. The most recently used shell command is stored in a new register currently named `!`.
2016-11-16sam: support an empty regex as an alias for the most recently used oneMarc André Tanner1-3/+2
As in sam if an empty regex // is provided we substitute in the most recently used one. 0/regexp/// Will match the second occurrence in the fie.
2016-11-15sam: make `:w` and `:wq` honor their given rangeMarc André Tanner1-17/+27
As in visual mode write commands have to be forced with ! if the changes are destructive i.e. only parts of the file are written.
2016-11-15sam: `e`, `q`, `X`, `Y`, `!` and all vi commands should not take addressesMarc André Tanner1-23/+23
2016-11-15sam: reformat command definition block to avoid overly long namesMarc André Tanner1-50/+131
No functional changes.
2016-11-15vis: overhaul and unify event generation codeMarc André Tanner1-2/+1
Add another layer of indirection, move actual event generation code to a dedicated function.
2016-11-15vis: generalize special stdin handlingMarc André Tanner1-2/+2
In preparation to move argument parsing code out of vis.c.
2016-11-11vis: add `:set shell` optionMarc André Tanner1-0/+6
2016-11-11sam: fix range for line zeroMarc André Tanner1-0/+2
:0 < echo "Should be inserted at the start of the file" :1 < echo "Should replace the first line"
2016-11-10vis: split `:set show <option>` into separate optionsMarc André Tanner1-5/+17
It was the only command option which needed `=` to assign a value to. This unifies the argument parsing logic and adds the possibility to specify a per-option help text. You might want to adapt your visrc.lua configuration accordingly.
2016-11-10vis: add help texts for :set option valuesMarc André Tanner1-11/+56
2016-11-08sam: fix default value handling of +/- addressesMarc André Tanner1-3/+6
We need to distinguish between an explicit given zero and an omitted value which should default to 1. This should fix the following constructs which rounds up/down an existing selection to whole lines -0,+0 and -0+,+0-
2016-11-08sam: dispose primary cursor at end of groupMarc André Tanner1-0/+2
Something like :{ x/pattern/ } should not leave the original cursor around.
2016-11-04sam: y should also loop over empty trailing matchesMarc André Tanner1-1/+5
The following x/example/ y/e/ i/-/ should produce `-e-xample-` where before it would wrongly result in `-e-xample`.
2016-11-02sam: improve cursor positioning after command executionMarc André Tanner1-7/+28
Previously something like :x/pattern :c/replacement would cause all cursors to disappear because the location they were placed on was deleted beneath them.
2016-11-02sam: fix default command handling at end of a groupMarc André Tanner1-1/+1
Something like :{ x/pattern/ } should select all occurrences of pattern.
2016-11-02sam: ignore white space between commands of a groupMarc André Tanner1-2/+1
2016-11-02sam: fix command name parsingMarc André Tanner1-2/+2
Any white space should terminate the command name. In particular multi-line commands as part of a group were not handled correctly.
2016-11-02sam: improve escape parsing logicMarc André Tanner1-22/+16
\\ should not be treated specially when parsing regular expressions.
2016-10-05sam: show error message on failed writeChristian Hesse1-2/+4
2016-09-30sam: simplify :r command implementaionMarc André Tanner1-13/+6
Avoid intermediate shell.
2016-09-29sam: consistent argument handling for :r, :w, :e commandsMarc André Tanner1-23/+17
:e without any argument can be used to reload the file from disk whereas before a "Filename expected" error would be displayed.
2016-09-27sam: allow non-latin command namesMarc André Tanner1-1/+1
Close #387
2016-09-25sam: change license headerMarc André Tanner1-3/+14
We use an adapted variant of sam's structural regular expression based command language. The initial implementation was partially based upon the following functions from sam / acme: * parse.h / edit.h (struct definitions) * cmd.c / edit.c (functions parsecmd, simpleaddr, compoundaddr) * xec.c / ecmd.c (cmdexec) * address.c / addr.c (address) It turns out the relevant code can be traced back to the initial X11 port of sam which is distributed under an ISC-like license instead of the Lucent Public License Version 1.02 used for Plan 9, plan9port and 9base. http://www.netlib.org/research/ http://www.netlib.org/research/sam.shar Hence we switch to the simpler license variant. Close #238
2016-09-19vis: also list :set options in :help outputMarc André Tanner1-0/+44
The help formatting could probably be improved, short single line help texts are still missing. Patches welcome. Close #283
2016-09-19vis: add rudimentary builtin help for :-commandsMarc André Tanner1-49/+49
2016-09-19vis: do not invoke file save event for internal filesMarc André Tanner1-1/+1
2016-08-07sam: do not change cursor position after :! commandMarc André Tanner1-1/+1
Fixes #364
2016-08-07sam: improve quoted argument parsingMarc André Tanner1-33/+28
Handling of unbalanced quotes could probably still be improved. Closes #344
2016-05-29sam: use more suitable error message if no command is givenMarc André Tanner1-1/+3
2016-05-26vis: use normalized absolute file names as internal representationMarc André Tanner1-4/+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.
2016-05-18vis: add an interactive mode to vis_pipe{,_collect}(...)Marc André Tanner1-2/+2
Previously the interactive mode was implicitly enabled by passing an invalid range. However for some use cases (e.g. completion) we need to be able to pipe a given text range to an external process without also redirecting stderr (which is used to draw the slmenu interface on top of vis).
2016-05-14vis: allow :commands with a hyphen in the nameMarc André Tanner1-1/+1
This fixes the argument parsing for the :{un,}map-window commands.
2016-05-05sam: avoid taking snapshots within the filter command implementationMarc André Tanner1-18/+1
This has the effect that multiple filter commands can be undone together.
2016-04-29vis: do not crash when processing :-commands and no window is activeMarc André Tanner1-3/+29
This is needed to make the vis.event.start Lua callback useful, setting global options should be possible even if no windows exist yet. The :set command options should probably be cleaned up further, some of them apply only to the currently active window while others have a global effect.
2016-04-21vis: add infrastructure to register custom :-commandsMarc André Tanner1-1/+5
2016-04-21vis: do not lazy allocate :-commandsMarc André Tanner1-9/+11
The built in commands should always be available.
2016-04-20vis: handle termination from within win_open event gracefullyMarc André Tanner1-9/+10
2016-04-17sam: except for visual mode, apply :w to whole fileMarc André Tanner1-16/+57
Also in visual mode, warn if :w is not forced by ! because the file will be reduced to the active selection.
2016-04-13sam: improve ^ matching start of lineMarc André Tanner1-4/+10
There are some nasty differences between the meaning of ^ in Plan 9's regexp library and POSIX when using REG_NEWLINE. The former only matches at the beginning of a line wheras the latter matches the zero-length string immediately after a newline character \n. As a result this also matches after the very last newline at the end of the file. This is undesired behavior for a command like :x/^/c/#/ Hence we try to filter out this last match. Close #264
2016-04-13Use view_cursors_new_force where appropriateMarc André Tanner1-14/+2
Close #263
2016-04-11sam.c: fix some typos in commentSteven Noonan1-2/+2
Signed-off-by: Steven Noonan <steven@uplinklabs.net>
2016-04-08sam: change default address of < and | commandsMarc André Tanner1-11/+16
If no address is provided these commands no longer apply to the whole line, but instead will insert the output of the external program at the current cursor location.
2016-04-06sam: include limits.h for PATH_MAXMarc André Tanner1-0/+1
Close #220
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