Mercurial > vim
annotate runtime/doc/if_ruby.txt @ 4267:22adc26aaa9f v7.3.884
updated for version 7.3.884
Problem: Compiler warning for variable shadowing another. (John Little)
Solution: Rename the variable. (Christian Brabandt)
| author | Bram Moolenaar <bram@vim.org> |
|---|---|
| date | Sat, 06 Apr 2013 14:30:40 +0200 |
| parents | 536aa8b0c934 |
| children | 6ec6b7ff2d43 |
| rev | line source |
|---|---|
| 3750 | 1 *if_ruby.txt* For Vim version 7.3. Last change: 2012 Aug 02 |
| 7 | 2 |
| 3 | |
| 4 VIM REFERENCE MANUAL by Shugo Maeda | |
| 5 | |
| 6 The Ruby Interface to Vim *ruby* *Ruby* | |
| 7 | |
| 8 | |
| 9 1. Commands |ruby-commands| | |
| 10 2. The VIM module |ruby-vim| | |
| 11 3. VIM::Buffer objects |ruby-buffer| | |
| 12 4. VIM::Window objects |ruby-window| | |
| 13 5. Global variables |ruby-globals| | |
| 557 | 14 6. Dynamic loading |ruby-dynamic| |
| 7 | 15 |
| 16 {Vi does not have any of these commands} | |
| 17 *E266* *E267* *E268* *E269* *E270* *E271* *E272* *E273* | |
| 18 | |
| 19 The Ruby interface only works when Vim was compiled with the |+ruby| feature. | |
| 20 | |
| 21 The home page for ruby is http://www.ruby-lang.org/. You can find links for | |
| 22 downloading Ruby there. | |
| 23 | |
| 24 ============================================================================== | |
| 25 1. Commands *ruby-commands* | |
| 26 | |
| 27 *:ruby* *:rub* | |
| 3750 | 28 :rub[y] {cmd} Execute Ruby command {cmd}. A command to try it out: > |
| 29 :ruby print "Hello" | |
| 7 | 30 |
| 31 :rub[y] << {endpattern} | |
| 32 {script} | |
| 33 {endpattern} | |
| 34 Execute Ruby script {script}. | |
| 35 {endpattern} must NOT be preceded by any white space. | |
| 36 If {endpattern} is omitted, it defaults to a dot '.' | |
| 236 | 37 like for the |:append| and |:insert| commands. This |
| 7 | 38 form of the |:ruby| command is mainly useful for |
| 39 including ruby code in vim scripts. | |
| 40 Note: This command doesn't work when the Ruby feature | |
| 41 wasn't compiled in. To avoid errors, see | |
| 42 |script-here|. | |
| 43 | |
| 44 Example Vim script: > | |
| 45 | |
| 46 function! RedGem() | |
| 47 ruby << EOF | |
| 48 class Garnet | |
| 49 def initialize(s) | |
| 50 @buffer = VIM::Buffer.current | |
| 51 vimputs(s) | |
| 52 end | |
| 53 def vimputs(s) | |
| 54 @buffer.append(@buffer.count,s) | |
| 55 end | |
| 56 end | |
| 57 gem = Garnet.new("pretty") | |
| 58 EOF | |
| 59 endfunction | |
| 60 < | |
| 61 | |
| 62 *:rubydo* *:rubyd* *E265* | |
| 63 :[range]rubyd[o] {cmd} Evaluate Ruby command {cmd} for each line in the | |
| 64 [range], with $_ being set to the text of each line in | |
| 236 | 65 turn, without a trailing <EOL>. Setting $_ will change |
| 7 | 66 the text, but note that it is not possible to add or |
| 67 delete lines using this command. | |
| 68 The default for [range] is the whole file: "1,$". | |
| 69 | |
| 70 *:rubyfile* *:rubyf* | |
| 71 :rubyf[ile] {file} Execute the Ruby script in {file}. This is the same as | |
| 72 ":ruby load 'file'", but allows file name completion. | |
| 73 | |
| 74 Executing Ruby commands is not possible in the |sandbox|. | |
| 75 | |
| 76 ============================================================================== | |
| 77 2. The VIM module *ruby-vim* | |
| 78 | |
| 79 Ruby code gets all of its access to vim via the "VIM" module. | |
| 80 | |
| 81 Overview > | |
| 809 | 82 print "Hello" # displays a message |
|
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83 VIM.command(cmd) # execute an Ex command |
| 809 | 84 num = VIM::Window.count # gets the number of windows |
| 85 w = VIM::Window[n] # gets window "n" | |
| 86 cw = VIM::Window.current # gets the current window | |
| 87 num = VIM::Buffer.count # gets the number of buffers | |
| 88 b = VIM::Buffer[n] # gets buffer "n" | |
| 89 cb = VIM::Buffer.current # gets the current buffer | |
| 90 w.height = lines # sets the window height | |
| 91 w.cursor = [row, col] # sets the window cursor position | |
| 92 pos = w.cursor # gets an array [row, col] | |
| 93 name = b.name # gets the buffer file name | |
| 94 line = b[n] # gets a line from the buffer | |
| 95 num = b.count # gets the number of lines | |
| 96 b[n] = str # sets a line in the buffer | |
| 97 b.delete(n) # deletes a line | |
| 98 b.append(n, str) # appends a line after n | |
| 99 line = VIM::Buffer.current.line # gets the current line | |
| 100 num = VIM::Buffer.current.line_number # gets the current line number | |
| 101 VIM::Buffer.current.line = "test" # sets the current line number | |
| 7 | 102 < |
| 103 | |
| 104 Module Functions: | |
| 105 | |
| 106 *ruby-message* | |
| 107 VIM::message({msg}) | |
| 108 Displays the message {msg}. | |
| 109 | |
| 110 *ruby-set_option* | |
| 111 VIM::set_option({arg}) | |
| 112 Sets a vim option. {arg} can be any argument that the ":set" command | |
| 113 accepts. Note that this means that no spaces are allowed in the | |
| 114 argument! See |:set|. | |
| 115 | |
| 116 *ruby-command* | |
| 117 VIM::command({cmd}) | |
| 118 Executes Ex command {cmd}. | |
| 119 | |
| 120 *ruby-evaluate* | |
| 121 VIM::evaluate({expr}) | |
| 122 Evaluates {expr} using the vim internal expression evaluator (see | |
| 236 | 123 |expression|). Returns the expression result as a string. |
| 714 | 124 A |List| is turned into a string by joining the items and inserting |
| 125 line breaks. | |
| 7 | 126 |
| 127 ============================================================================== | |
| 128 3. VIM::Buffer objects *ruby-buffer* | |
| 129 | |
| 130 VIM::Buffer objects represent vim buffers. | |
| 131 | |
| 132 Class Methods: | |
| 133 | |
| 134 current Returns the current buffer object. | |
| 135 count Returns the number of buffers. | |
| 236 | 136 self[{n}] Returns the buffer object for the number {n}. The first number |
| 7 | 137 is 0. |
| 138 | |
| 139 Methods: | |
| 140 | |
| 141 name Returns the name of the buffer. | |
| 142 number Returns the number of the buffer. | |
| 143 count Returns the number of lines. | |
| 144 length Returns the number of lines. | |
| 145 self[{n}] Returns a line from the buffer. {n} is the line number. | |
| 146 self[{n}] = {str} | |
| 147 Sets a line in the buffer. {n} is the line number. | |
| 148 delete({n}) Deletes a line from the buffer. {n} is the line number. | |
| 149 append({n}, {str}) | |
| 150 Appends a line after the line {n}. | |
| 856 | 151 line Returns the current line of the buffer if the buffer is |
| 809 | 152 active. |
| 153 line = {str} Sets the current line of the buffer if the buffer is active. | |
| 154 line_number Returns the number of the current line if the buffer is | |
| 155 active. | |
| 7 | 156 |
| 157 ============================================================================== | |
| 158 4. VIM::Window objects *ruby-window* | |
| 159 | |
| 160 VIM::Window objects represent vim windows. | |
| 161 | |
| 162 Class Methods: | |
| 163 | |
| 164 current Returns the current window object. | |
| 165 count Returns the number of windows. | |
| 236 | 166 self[{n}] Returns the window object for the number {n}. The first number |
| 7 | 167 is 0. |
| 168 | |
| 169 Methods: | |
| 170 | |
| 171 buffer Returns the buffer displayed in the window. | |
| 172 height Returns the height of the window. | |
| 173 height = {n} Sets the window height to {n}. | |
| 502 | 174 width Returns the width of the window. |
| 175 width = {n} Sets the window width to {n}. | |
| 7 | 176 cursor Returns a [row, col] array for the cursor position. |
| 177 cursor = [{row}, {col}] | |
| 178 Sets the cursor position to {row} and {col}. | |
| 179 | |
| 180 ============================================================================== | |
| 557 | 181 5. Global variables *ruby-globals* |
| 7 | 182 |
| 183 There are two global variables. | |
| 184 | |
| 185 $curwin The current window object. | |
| 186 $curbuf The current buffer object. | |
| 187 | |
| 188 ============================================================================== | |
| 557 | 189 6. Dynamic loading *ruby-dynamic* |
| 190 | |
| 2625 | 191 On MS-Windows and Unix the Ruby library can be loaded dynamically. The |
| 192 |:version| output then includes |+ruby/dyn|. | |
| 557 | 193 |
| 2625 | 194 This means that Vim will search for the Ruby DLL file or shared library only |
| 195 when needed. When you don't use the Ruby interface you don't need it, thus | |
| 196 you can use Vim even though this library file is not on your system. | |
| 557 | 197 |
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198 You need to install the right version of Ruby for this to work. You can find |
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199 the package to download from: |
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200 http://www.garbagecollect.jp/ruby/mswin32/en/download/release.html |
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201 Currently that is ruby-1.9.1-p429-i386-mswin32.zip |
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202 |
| 557 | 203 To use the Ruby interface the Ruby DLL must be in your search path. In a |
| 204 console window type "path" to see what directories are used. | |
| 205 | |
| 206 The name of the DLL must match the Ruby version Vim was compiled with. | |
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207 Currently the name is "msvcrt-ruby191.dll". That is for Ruby 1.9.1. To know |
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parents:
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208 for sure edit "gvim.exe" and search for "ruby\d*.dll\c". |
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f6540762173d
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parents:
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209 |
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parents:
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210 If you want to build Vim with Ruby 1.9.1, you need to edit the config.h file |
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parents:
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211 and comment-out the check for _MSC_VER. |
| 3750 | 212 You may also need to rename the include directory name to match the version, |
| 213 strangely for Ruby 1.9.3 the directory is called 1.9.1. | |
| 557 | 214 |
| 215 ============================================================================== | |
| 7 | 216 vim:tw=78:ts=8:ft=help:norl: |