vim: runtime/doc/if_lua.txt annotate

annotate runtime/doc/if_lua.txt @ 20430:df50f7b7830d

Added tag v8.2.0769 for changeset c88ebfcbab03779711238a16cc13586e4511b1cd

author	Bram Moolenaar <Bram@vim.org>
date	Sat, 16 May 2020 16:15:04 +0200
parents	04ef2ccf2519
children	86dde5c4b375

rev	line source
18879 af69c9335223 Vim 8.2 release Bram Moolenaar <Bram@vim.org> parents: 17571 diff changeset	1 if_lua.txt For Vim version 8.2. Last change: 2019 Jul 21
2320 966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	2
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	3
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	4 VIM REFERENCE MANUAL by Luis Carvalho
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	5
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	6
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	7 The Lua Interface to Vim lua Lua
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	8
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	9 1. Commands \|lua-commands\|
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	10 2. The vim module \|lua-vim\|
3450 b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	11 3. List userdata \|lua-list\|
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	12 4. Dict userdata \|lua-dict\|
16076 a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	13 5. Blob userdata \|lua-blob\|
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	14 6. Funcref userdata \|lua-funcref\|
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	15 7. Buffer userdata \|lua-buffer\|
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	16 8. Window userdata \|lua-window\|
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	17 9. luaeval() Vim function \|lua-luaeval\|
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	18 10. Dynamic loading \|lua-dynamic\|
2320 966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	19
16553 0e473e9e70c2 patch 8.1.1280: remarks about functionality not in Vi clutters the help Bram Moolenaar <Bram@vim.org> parents: 16076 diff changeset	20 {only available when Vim was compiled with the \|+lua\| feature}
2320 966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	21
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	22 ==============================================================================
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	23 1. Commands lua-commands
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	24
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	25 :lua
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	26 :[range]lua {chunk}
16553 0e473e9e70c2 patch 8.1.1280: remarks about functionality not in Vi clutters the help Bram Moolenaar <Bram@vim.org> parents: 16076 diff changeset	27 Execute Lua chunk {chunk}.
2320 966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	28
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	29 Examples:
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	30 >
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	31 :lua print("Hello, Vim!")
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	32 :lua local curbuf = vim.buffer() curbuf[7] = "line #7"
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	33 <
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	34
20045 04ef2ccf2519 patch 8.2.0578: heredoc for interfaces does not support "trim" Bram Moolenaar <Bram@vim.org> parents: 18879 diff changeset	35 :[range]lua << [trim] [{endmarker}]
2320 966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	36 {script}
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	37 {endmarker}
16553 0e473e9e70c2 patch 8.1.1280: remarks about functionality not in Vi clutters the help Bram Moolenaar <Bram@vim.org> parents: 16076 diff changeset	38 Execute Lua script {script}.
2320 966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	39 Note: This command doesn't work when the Lua
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	40 feature wasn't compiled in. To avoid errors, see
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	41 \|script-here\|.
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	42
17571 2704c4e3e20a Update runtime files. Bram Moolenaar <Bram@vim.org> parents: 16553 diff changeset	43 If [endmarker] is omitted from after the "<<", a dot '.' must be used after
20045 04ef2ccf2519 patch 8.2.0578: heredoc for interfaces does not support "trim" Bram Moolenaar <Bram@vim.org> parents: 18879 diff changeset	44 {script}, like for the \|:append\| and \|:insert\| commands. Refer to
04ef2ccf2519 patch 8.2.0578: heredoc for interfaces does not support "trim" Bram Moolenaar <Bram@vim.org> parents: 18879 diff changeset	45 \|:let-heredoc\| for more information.
17571 2704c4e3e20a Update runtime files. Bram Moolenaar <Bram@vim.org> parents: 16553 diff changeset	46
2320 966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	47 This form of the \|:lua\| command is mainly useful for including Lua code
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	48 in Vim scripts.
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	49
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	50 Example:
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	51 >
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	52 function! CurrentLineInfo()
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	53 lua << EOF
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	54 local linenr = vim.window().line
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	55 local curline = vim.buffer()[linenr]
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	56 print(string.format("Current line [%d] has %d chars",
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	57 linenr, #curline))
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	58 EOF
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	59 endfunction
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	60 <
10153 715d6c5707b8 commit https://github.com/vim/vim/commit/abd468ed0fbcba391e7833feeaa7de3ced841455 Christian Brabandt <cb@256bit.org> parents: 8673 diff changeset	61 To see what version of Lua you have: >
715d6c5707b8 commit https://github.com/vim/vim/commit/abd468ed0fbcba391e7833feeaa7de3ced841455 Christian Brabandt <cb@256bit.org> parents: 8673 diff changeset	62 :lua print(_VERSION)
715d6c5707b8 commit https://github.com/vim/vim/commit/abd468ed0fbcba391e7833feeaa7de3ced841455 Christian Brabandt <cb@256bit.org> parents: 8673 diff changeset	63
715d6c5707b8 commit https://github.com/vim/vim/commit/abd468ed0fbcba391e7833feeaa7de3ced841455 Christian Brabandt <cb@256bit.org> parents: 8673 diff changeset	64 If you use LuaJIT you can also use this: >
715d6c5707b8 commit https://github.com/vim/vim/commit/abd468ed0fbcba391e7833feeaa7de3ced841455 Christian Brabandt <cb@256bit.org> parents: 8673 diff changeset	65 :lua print(jit.version)
715d6c5707b8 commit https://github.com/vim/vim/commit/abd468ed0fbcba391e7833feeaa7de3ced841455 Christian Brabandt <cb@256bit.org> parents: 8673 diff changeset	66 <
2320 966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	67
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	68 :luado
3465 161d01cbb165 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3450 diff changeset	69 :[range]luado {body} Execute Lua function "function (line, linenr) {body}
161d01cbb165 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3450 diff changeset	70 end" for each line in the [range], with the function
161d01cbb165 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3450 diff changeset	71 argument being set to the text of each line in turn,
161d01cbb165 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3450 diff changeset	72 without a trailing <EOL>, and the current line number.
161d01cbb165 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3450 diff changeset	73 If the value returned by the function is a string it
161d01cbb165 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3450 diff changeset	74 becomes the text of the line in the current turn. The
161d01cbb165 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3450 diff changeset	75 default for [range] is the whole file: "1,$".
2320 966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	76
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	77 Examples:
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	78 >
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	79 :luado return string.format("%s\t%d", line:reverse(), #line)
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	80
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	81 :lua require"lpeg"
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	82 :lua -- balanced parenthesis grammar:
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	83 :lua bp = lpeg.P{ "(" * ((1 - lpeg.S"()") + lpeg.V(1))^0 * ")" }
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	84 :luado if bp:match(line) then return "-->\t" .. line end
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	85 <
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	86
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	87 :luafile
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	88 :[range]luafile {file}
16553 0e473e9e70c2 patch 8.1.1280: remarks about functionality not in Vi clutters the help Bram Moolenaar <Bram@vim.org> parents: 16076 diff changeset	89 Execute Lua script in {file}.
2320 966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	90 The whole argument is used as a single file name.
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	91
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	92 Examples:
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	93 >
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	94 :luafile script.lua
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	95 :luafile %
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	96 <
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	97
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	98 All these commands execute a Lua chunk from either the command line (:lua and
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	99 :luado) or a file (:luafile) with the given line [range]. Similarly to the Lua
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	100 interpreter, each chunk has its own scope and so only global variables are
3450 b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	101 shared between command calls. All Lua default libraries are available. In
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	102 addition, Lua "print" function has its output redirected to the Vim message
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	103 area, with arguments separated by a white space instead of a tab.
2320 966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	104
2337 a0f87fc19d1d Better conceal in help. (partly by Dominique Pelle) Bram Moolenaar <bram@vim.org> parents: 2320 diff changeset	105 Lua uses the "vim" module (see \|lua-vim\|) to issue commands to Vim
2320 966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	106 and manage buffers (\|lua-buffer\|) and windows (\|lua-window\|). However,
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	107 procedures that alter buffer content, open new buffers, and change cursor
2337 a0f87fc19d1d Better conceal in help. (partly by Dominique Pelle) Bram Moolenaar <bram@vim.org> parents: 2320 diff changeset	108 position are restricted when the command is executed in the \|sandbox\|.
2320 966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	109
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	110
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	111 ==============================================================================
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	112 2. The vim module lua-vim
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	113
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	114 Lua interfaces Vim through the "vim" module. The first and last line of the
2373 f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	115 input range are stored in "vim.firstline" and "vim.lastline" respectively. The
2320 966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	116 module also includes routines for buffer, window, and current line queries,
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	117 Vim evaluation and command execution, and others.
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	118
4911 78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	119 vim.list([arg]) Returns an empty list or, if "arg" is a Lua
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	120 table with numeric keys 1, ..., n (a
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	121 "sequence"), returns a list l such that l[i] =
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	122 arg[i] for i = 1, ..., n (see \|List\|).
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	123 Non-numeric keys are not used to initialize
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	124 the list. See also \|lua-eval\| for conversion
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	125 rules. Example: >
14298 4a588e3afd4a Update runtime files, add Danish translations. Christian Brabandt <cb@256bit.org> parents: 14239 diff changeset	126 :lua t = {math.pi, false, say = 'hi'}
4a588e3afd4a Update runtime files, add Danish translations. Christian Brabandt <cb@256bit.org> parents: 14239 diff changeset	127 :echo luaeval('vim.list(t)')
4a588e3afd4a Update runtime files, add Danish translations. Christian Brabandt <cb@256bit.org> parents: 14239 diff changeset	128 :" [3.141593, v:false], 'say' is ignored
4911 78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	129 <
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	130 vim.dict([arg]) Returns an empty dictionary or, if "arg" is a
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	131 Lua table, returns a dict d such that d[k] =
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	132 arg[k] for all string keys k in "arg" (see
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	133 \|Dictionary\|). Number keys are converted to
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	134 strings. Keys that are not strings are not
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	135 used to initialize the dictionary. See also
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	136 \|lua-eval\| for conversion rules. Example: >
14298 4a588e3afd4a Update runtime files, add Danish translations. Christian Brabandt <cb@256bit.org> parents: 14239 diff changeset	137 :lua t = {math.pi, false, say = 'hi'}
4a588e3afd4a Update runtime files, add Danish translations. Christian Brabandt <cb@256bit.org> parents: 14239 diff changeset	138 :echo luaeval('vim.dict(t)')
4a588e3afd4a Update runtime files, add Danish translations. Christian Brabandt <cb@256bit.org> parents: 14239 diff changeset	139 :" {'1': 3.141593, '2': v:false,
4a588e3afd4a Update runtime files, add Danish translations. Christian Brabandt <cb@256bit.org> parents: 14239 diff changeset	140 :" 'say': 'hi'}
4911 78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	141 <
16076 a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	142 vim.blob([arg]) Returns an empty blob or, if "arg" is a Lua
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	143 string, returns a blob b such that b is
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	144 equivalent to "arg" as a byte string.
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	145 Examples: >
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	146 :lua s = "12ab\x00\x80\xfe\xff"
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	147 :echo luaeval('vim.blob(s)')
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	148 :" 0z31326162.0080FEFF
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	149 <
4911 78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	150 vim.funcref({name}) Returns a Funcref to function {name} (see
14298 4a588e3afd4a Update runtime files, add Danish translations. Christian Brabandt <cb@256bit.org> parents: 14239 diff changeset	151 \|Funcref\|). It is equivalent to Vim's
4a588e3afd4a Update runtime files, add Danish translations. Christian Brabandt <cb@256bit.org> parents: 14239 diff changeset	152 function().
2320 966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	153
2373 f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	154 vim.buffer([arg]) If "arg" is a number, returns buffer with
f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	155 number "arg" in the buffer list or, if "arg"
f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	156 is a string, returns buffer whose full or short
f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	157 name is "arg". In both cases, returns 'nil'
f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	158 (nil value, not string) if the buffer is not
f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	159 found. Otherwise, if "toboolean(arg)" is
f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	160 'true' returns the first buffer in the buffer
f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	161 list or else the current buffer.
2320 966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	162
2373 f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	163 vim.window([arg]) If "arg" is a number, returns window with
f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	164 number "arg" or 'nil' (nil value, not string)
f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	165 if not found. Otherwise, if "toboolean(arg)"
f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	166 is 'true' returns the first window or else the
f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	167 current window.
2320 966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	168
3450 b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	169 vim.type({arg}) Returns the type of {arg}. It is equivalent to
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	170 Lua's "type" function, but returns "list",
4911 78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	171 "dict", "funcref", "buffer", or "window" if
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	172 {arg} is a list, dictionary, funcref, buffer,
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	173 or window, respectively. Examples: >
3450 b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	174 :lua l = vim.list()
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	175 :lua print(type(l), vim.type(l))
14239 7457bf2db968 patch 8.1.0136: Lua tests don't cover new features Christian Brabandt <cb@256bit.org> parents: 13963 diff changeset	176 :" list
3450 b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	177 <
2373 f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	178 vim.command({cmd}) Executes the vim (ex-mode) command {cmd}.
2320 966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	179 Examples: >
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	180 :lua vim.command"set tw=60"
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	181 :lua vim.command"normal ddp"
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	182 <
2373 f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	183 vim.eval({expr}) Evaluates expression {expr} (see \|expression\|),
2320 966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	184 converts the result to Lua, and returns it.
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	185 Vim strings and numbers are directly converted
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	186 to Lua strings and numbers respectively. Vim
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	187 lists and dictionaries are converted to Lua
3450 b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	188 userdata (see \|lua-list\| and \|lua-dict\|).
2320 966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	189 Examples: >
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	190 :lua tw = vim.eval"&tw"
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	191 :lua print(vim.eval"{'a': 'one'}".a)
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	192 <
2373 f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	193 vim.line() Returns the current line (without the trailing
2320 966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	194 <EOL>), a Lua string.
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	195
2373 f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	196 vim.beep() Beeps.
2320 966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	197
2373 f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	198 vim.open({fname}) Opens a new buffer for file {fname} and
2320 966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	199 returns it. Note that the buffer is not set as
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	200 current.
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	201
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	202
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	203 ==============================================================================
3450 b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	204 3. List userdata lua-list
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	205
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	206 List userdata represent vim lists, and the interface tries to follow closely
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	207 Vim's syntax for lists. Since lists are objects, changes in list references in
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	208 Lua are reflected in Vim and vice-versa. A list "l" has the following
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	209 properties and methods:
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	210
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	211 Properties
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	212 ----------
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	213 o "#l" is the number of items in list "l", equivalent to "len(l)"
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	214 in Vim.
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	215 o "l[k]" returns the k-th item in "l"; "l" is zero-indexed, as in Vim.
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	216 To modify the k-th item, simply do "l[k] = newitem"; in
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	217 particular, "l[k] = nil" removes the k-th item from "l".
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	218 o "l()" returns an iterator for "l".
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	219
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	220 Methods
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	221 -------
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	222 o "l:add(item)" appends "item" to the end of "l".
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	223 o "l:insert(item[, pos])" inserts "item" at (optional)
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	224 position "pos" in the list. The default value for "pos" is 0.
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	225
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	226 Examples:
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	227 >
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	228 :let l = [1, 'item']
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	229 :lua l = vim.eval('l') -- same 'l'
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	230 :lua l:add(vim.list())
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	231 :lua l[0] = math.pi
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	232 :echo l[0] " 3.141593
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	233 :lua l[0] = nil -- remove first item
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	234 :lua l:insert(true, 1)
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	235 :lua print(l, #l, l[0], l[1], l[-1])
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	236 :lua for item in l() do print(item) end
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	237 <
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	238
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	239 ==============================================================================
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	240 4. Dict userdata lua-dict
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	241
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	242 Similarly to list userdata, dict userdata represent vim dictionaries; since
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	243 dictionaries are also objects, references are kept between Lua and Vim. A dict
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	244 "d" has the following properties:
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	245
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	246 Properties
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	247 ----------
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	248 o "#d" is the number of items in dict "d", equivalent to "len(d)"
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	249 in Vim.
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	250 o "d.key" or "d['key']" returns the value at entry "key" in "d".
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	251 To modify the entry at this key, simply do "d.key = newvalue"; in
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	252 particular, "d.key = nil" removes the entry from "d".
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	253 o "d()" returns an iterator for "d" and is equivalent to "items(d)" in
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	254 Vim.
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	255
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	256 Examples:
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	257 >
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	258 :let d = {'n':10}
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	259 :lua d = vim.eval('d') -- same 'd'
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	260 :lua print(d, d.n, #d)
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	261 :let d.self = d
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	262 :lua for k, v in d() do print(d, k, v) end
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	263 :lua d.x = math.pi
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	264 :lua d.self = nil -- remove entry
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	265 :echo d
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	266 <
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	267
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	268 ==============================================================================
16076 a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	269 5. Blob userdata lua-blob
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	270
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	271 Blob userdata represent vim blobs. A blob "b" has the following properties:
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	272
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	273 Properties
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	274 ----------
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	275 o "#b" is the length of blob "b", equivalent to "len(b)" in Vim.
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	276 o "b[k]" returns the k-th item in "b"; "b" is zero-indexed, as in Vim.
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	277 To modify the k-th item, simply do "b[k] = number"; in particular,
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	278 "b[#b] = number" can append a byte to tail.
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	279
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	280 Methods
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	281 -------
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	282 o "b:add(bytes)" appends "bytes" to the end of "b".
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	283
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	284 Examples:
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	285 >
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	286 :let b = 0z001122
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	287 :lua b = vim.eval('b') -- same 'b'
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	288 :lua print(b, b[0], #b)
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	289 :lua b[1] = 32
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	290 :lua b[#b] = 0x33 -- append a byte to tail
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	291 :lua b:add("\x80\x81\xfe\xff")
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	292 :echo b
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	293 <
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	294
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	295 ==============================================================================
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	296 6. Funcref userdata lua-funcref
4911 78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	297
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	298 Funcref userdata represent funcref variables in Vim. Funcrefs that were
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	299 defined with a "dict" attribute need to be obtained as a dictionary key
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	300 in order to have "self" properly assigned to the dictionary (see examples
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	301 below.) A funcref "f" has the following properties:
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	302
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	303 Properties
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	304 ----------
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	305 o "#f" is the name of the function referenced by "f"
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	306 o "f(...)" calls the function referenced by "f" (with arguments)
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	307
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	308 Examples:
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	309 >
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	310 :function I(x)
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	311 : return a:x
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	312 : endfunction
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	313 :let R = function('I')
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	314 :lua i1 = vim.funcref('I')
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	315 :lua i2 = vim.eval('R')
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	316 :lua print(#i1, #i2) -- both 'I'
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	317 :lua print(i1, i2, #i2(i1) == #i1(i2))
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	318 :function Mylen() dict
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	319 : return len(self.data)
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	320 : endfunction
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	321 :let mydict = {'data': [0, 1, 2, 3]}
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	322 :lua d = vim.eval('mydict'); d.len = vim.funcref('Mylen')
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	323 :echo mydict.len()
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	324 :lua l = d.len -- assign d as 'self'
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	325 :lua print(l())
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	326 <
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	327
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	328 ==============================================================================
16076 a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	329 7. Buffer userdata lua-buffer
2320 966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	330
2373 f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	331 Buffer userdata represent vim buffers. A buffer userdata "b" has the following
2320 966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	332 properties and methods:
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	333
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	334 Properties
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	335 ----------
2373 f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	336 o "b()" sets "b" as the current buffer.
f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	337 o "#b" is the number of lines in buffer "b".
f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	338 o "b[k]" represents line number k: "b[k] = newline" replaces line k
f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	339 with string "newline" and "b[k] = nil" deletes line k.
f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	340 o "b.name" contains the short name of buffer "b" (read-only).
f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	341 o "b.fname" contains the full name of buffer "b" (read-only).
f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	342 o "b.number" contains the position of buffer "b" in the buffer list
2320 966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	343 (read-only).
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	344
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	345 Methods
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	346 -------
2373 f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	347 o "b:insert(newline[, pos])" inserts string "newline" at (optional)
f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	348 position "pos" in the buffer. The default value for "pos" is
f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	349 "#b + 1". If "pos == 0" then "newline" becomes the first line in
f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	350 the buffer.
f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	351 o "b:next()" returns the buffer next to "b" in the buffer list.
f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	352 o "b:previous()" returns the buffer previous to "b" in the buffer
f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	353 list.
f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	354 o "b:isvalid()" returns 'true' (boolean) if buffer "b" corresponds to
f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	355 a "real" (not freed from memory) Vim buffer.
2320 966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	356
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	357 Examples:
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	358 >
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	359 :lua b = vim.buffer() -- current buffer
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	360 :lua print(b.name, b.number)
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	361 :lua b[1] = "first line"
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	362 :lua b:insert("FIRST!", 0)
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	363 :lua b[1] = nil -- delete top line
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	364 :lua for i=1,3 do b:insert(math.random()) end
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	365 :3,4lua for i=vim.lastline,vim.firstline,-1 do b[i] = nil end
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	366 :lua vim.open"myfile"() -- open buffer and set it as current
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	367
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	368 function! ListBuffers()
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	369 lua << EOF
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	370 local b = vim.buffer(true) -- first buffer in list
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	371 while b ~= nil do
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	372 print(b.number, b.name, #b)
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	373 b = b:next()
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	374 end
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	375 vim.beep()
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	376 EOF
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	377 endfunction
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	378 <
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	379
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	380 ==============================================================================
16076 a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	381 8. Window userdata lua-window
2320 966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	382
2373 f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	383 Window objects represent vim windows. A window userdata "w" has the following
2320 966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	384 properties and methods:
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	385
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	386 Properties
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	387 ----------
2373 f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	388 o "w()" sets "w" as the current window.
f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	389 o "w.buffer" contains the buffer of window "w" (read-only).
f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	390 o "w.line" represents the cursor line position in window "w".
f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	391 o "w.col" represents the cursor column position in window "w".
f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	392 o "w.width" represents the width of window "w".
f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	393 o "w.height" represents the height of window "w".
2320 966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	394
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	395 Methods
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	396 -------
2373 f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	397 o "w:next()" returns the window next to "w".
f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	398 o "w:previous()" returns the window previous to "w".
f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	399 o "w:isvalid()" returns 'true' (boolean) if window "w" corresponds to
f149bb1cf5be Make it possible to load Lua dynamically on Unix. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: 2345 diff changeset	400 a "real" (not freed from memory) Vim window.
2320 966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	401
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	402 Examples:
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	403 >
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	404 :lua w = vim.window() -- current window
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	405 :lua print(w.buffer.name, w.line, w.col)
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	406 :lua w.width = w.width + math.random(10)
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	407 :lua w.height = 2 * math.random() * w.height
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	408 :lua n,w = 0,vim.window(true) while w~=nil do n,w = n + 1,w:next() end
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	409 :lua print("There are " .. n .. " windows")
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	410 <
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	411
966a5609669e Added Lua interfae. (Luis Carvalho) Bram Moolenaar <bram@vim.org> parents: diff changeset	412 ==============================================================================
16076 a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	413 9. luaeval() Vim function lua-luaeval lua-eval
3450 b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	414
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	415 The (dual) equivalent of "vim.eval" for passing Lua values to Vim is
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	416 "luaeval". "luaeval" takes an expression string and an optional argument and
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	417 returns the result of the expression. It is semantically equivalent in Lua to:
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	418 >
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	419 local chunkheader = "local _A = select(1, ...) return "
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	420 function luaeval (expstr, arg)
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	421 local chunk = assert(loadstring(chunkheader .. expstr, "luaeval"))
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	422 return chunk(arg) -- return typval
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	423 end
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	424 <
4911 78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	425 Note that "_A" receives the argument to "luaeval". Lua numbers, strings, and
16076 a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	426 list, dict, blob, and funcref userdata are converted to their Vim respective
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	427 types, while Lua booleans are converted to numbers. An error is thrown if
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	428 conversion of any of the remaining Lua types, including userdata other than
a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	429 lists, dicts, blobs, and funcrefs, is attempted.
4911 78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	430
78c318784090 Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 3682 diff changeset	431 Examples: >
3450 b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	432
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	433 :echo luaeval('math.pi')
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	434 :lua a = vim.list():add('newlist')
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	435 :let a = luaeval('a')
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	436 :echo a[0] " 'newlist'
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	437 :function Rand(x,y) " random uniform between x and y
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	438 : return luaeval('(_A.y-_A.x)*math.random()+_A.x', {'x':a:x,'y':a:y})
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	439 : endfunction
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	440 :echo Rand(1,10)
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	441
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	442
b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	443 ==============================================================================
16076 a2f0e93a5857 patch 8.1.1043: Lua interface does not support Blob Bram Moolenaar <Bram@vim.org> parents: 14298 diff changeset	444 10. Dynamic loading lua-dynamic
7196 42717d048817 commit https://github.com/vim/vim/commit/d94464ee294a351ce7b6ba18e8bd3f24f1bef920 Christian Brabandt <cb@256bit.org> parents: 5340 diff changeset	445
42717d048817 commit https://github.com/vim/vim/commit/d94464ee294a351ce7b6ba18e8bd3f24f1bef920 Christian Brabandt <cb@256bit.org> parents: 5340 diff changeset	446 On MS-Windows and Unix the Lua library can be loaded dynamically. The
42717d048817 commit https://github.com/vim/vim/commit/d94464ee294a351ce7b6ba18e8bd3f24f1bef920 Christian Brabandt <cb@256bit.org> parents: 5340 diff changeset	447 \|:version\| output then includes \|+lua/dyn\|.
42717d048817 commit https://github.com/vim/vim/commit/d94464ee294a351ce7b6ba18e8bd3f24f1bef920 Christian Brabandt <cb@256bit.org> parents: 5340 diff changeset	448
42717d048817 commit https://github.com/vim/vim/commit/d94464ee294a351ce7b6ba18e8bd3f24f1bef920 Christian Brabandt <cb@256bit.org> parents: 5340 diff changeset	449 This means that Vim will search for the Lua DLL or shared library file only
42717d048817 commit https://github.com/vim/vim/commit/d94464ee294a351ce7b6ba18e8bd3f24f1bef920 Christian Brabandt <cb@256bit.org> parents: 5340 diff changeset	450 when needed. When you don't use the Lua interface you don't need it, thus
42717d048817 commit https://github.com/vim/vim/commit/d94464ee294a351ce7b6ba18e8bd3f24f1bef920 Christian Brabandt <cb@256bit.org> parents: 5340 diff changeset	451 you can use Vim without this file.
42717d048817 commit https://github.com/vim/vim/commit/d94464ee294a351ce7b6ba18e8bd3f24f1bef920 Christian Brabandt <cb@256bit.org> parents: 5340 diff changeset	452
8673 ed7251c3e2d3 commit https://github.com/vim/vim/commit/e18c0b39815c5a746887a509c2cd9f11fadaba07 Christian Brabandt <cb@256bit.org> parents: 7196 diff changeset	453
ed7251c3e2d3 commit https://github.com/vim/vim/commit/e18c0b39815c5a746887a509c2cd9f11fadaba07 Christian Brabandt <cb@256bit.org> parents: 7196 diff changeset	454 MS-Windows ~
7196 42717d048817 commit https://github.com/vim/vim/commit/d94464ee294a351ce7b6ba18e8bd3f24f1bef920 Christian Brabandt <cb@256bit.org> parents: 5340 diff changeset	455
8673 ed7251c3e2d3 commit https://github.com/vim/vim/commit/e18c0b39815c5a746887a509c2cd9f11fadaba07 Christian Brabandt <cb@256bit.org> parents: 7196 diff changeset	456 To use the Lua interface the Lua DLL must be in your search path. In a
ed7251c3e2d3 commit https://github.com/vim/vim/commit/e18c0b39815c5a746887a509c2cd9f11fadaba07 Christian Brabandt <cb@256bit.org> parents: 7196 diff changeset	457 console window type "path" to see what directories are used. The 'luadll'
ed7251c3e2d3 commit https://github.com/vim/vim/commit/e18c0b39815c5a746887a509c2cd9f11fadaba07 Christian Brabandt <cb@256bit.org> parents: 7196 diff changeset	458 option can be also used to specify the Lua DLL. The version of the DLL must
ed7251c3e2d3 commit https://github.com/vim/vim/commit/e18c0b39815c5a746887a509c2cd9f11fadaba07 Christian Brabandt <cb@256bit.org> parents: 7196 diff changeset	459 match the Lua version Vim was compiled with.
ed7251c3e2d3 commit https://github.com/vim/vim/commit/e18c0b39815c5a746887a509c2cd9f11fadaba07 Christian Brabandt <cb@256bit.org> parents: 7196 diff changeset	460
ed7251c3e2d3 commit https://github.com/vim/vim/commit/e18c0b39815c5a746887a509c2cd9f11fadaba07 Christian Brabandt <cb@256bit.org> parents: 7196 diff changeset	461
ed7251c3e2d3 commit https://github.com/vim/vim/commit/e18c0b39815c5a746887a509c2cd9f11fadaba07 Christian Brabandt <cb@256bit.org> parents: 7196 diff changeset	462 Unix ~
ed7251c3e2d3 commit https://github.com/vim/vim/commit/e18c0b39815c5a746887a509c2cd9f11fadaba07 Christian Brabandt <cb@256bit.org> parents: 7196 diff changeset	463
ed7251c3e2d3 commit https://github.com/vim/vim/commit/e18c0b39815c5a746887a509c2cd9f11fadaba07 Christian Brabandt <cb@256bit.org> parents: 7196 diff changeset	464 The 'luadll' option can be used to specify the Lua shared library file instead
ed7251c3e2d3 commit https://github.com/vim/vim/commit/e18c0b39815c5a746887a509c2cd9f11fadaba07 Christian Brabandt <cb@256bit.org> parents: 7196 diff changeset	465 of DYNAMIC_LUA_DLL file what was specified at compile time. The version of
ed7251c3e2d3 commit https://github.com/vim/vim/commit/e18c0b39815c5a746887a509c2cd9f11fadaba07 Christian Brabandt <cb@256bit.org> parents: 7196 diff changeset	466 the shared library must match the Lua version Vim was compiled with.
7196 42717d048817 commit https://github.com/vim/vim/commit/d94464ee294a351ce7b6ba18e8bd3f24f1bef920 Christian Brabandt <cb@256bit.org> parents: 5340 diff changeset	467
42717d048817 commit https://github.com/vim/vim/commit/d94464ee294a351ce7b6ba18e8bd3f24f1bef920 Christian Brabandt <cb@256bit.org> parents: 5340 diff changeset	468
42717d048817 commit https://github.com/vim/vim/commit/d94464ee294a351ce7b6ba18e8bd3f24f1bef920 Christian Brabandt <cb@256bit.org> parents: 5340 diff changeset	469 ==============================================================================
3450 b067b8b81be9 updated for version 7.3.490 Bram Moolenaar <bram@vim.org> parents: 2572 diff changeset	470 vim:tw=78:ts=8:noet:ft=help:norl:

Mercurial > vim

annotate runtime/doc/if_lua.txt @ 20430:df50f7b7830d