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1 *if_ruby.txt* For Vim version 7.0aa. Last change: 2004 Mar 14
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4 VIM REFERENCE MANUAL by Shugo Maeda
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6 The Ruby Interface to Vim *ruby* *Ruby*
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8
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9 1. Commands |ruby-commands|
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10 2. The VIM module |ruby-vim|
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11 3. VIM::Buffer objects |ruby-buffer|
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12 4. VIM::Window objects |ruby-window|
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13 5. Global variables |ruby-globals|
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14
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15 {Vi does not have any of these commands}
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16 *E266* *E267* *E268* *E269* *E270* *E271* *E272* *E273*
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17
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18 The Ruby interface only works when Vim was compiled with the |+ruby| feature.
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19
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20 The home page for ruby is http://www.ruby-lang.org/. You can find links for
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21 downloading Ruby there.
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22
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23 ==============================================================================
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24 1. Commands *ruby-commands*
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25
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26 *:ruby* *:rub*
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27 :rub[y] {cmd} Execute Ruby command {cmd}.
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28
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29 :rub[y] << {endpattern}
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30 {script}
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31 {endpattern}
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32 Execute Ruby script {script}.
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33 {endpattern} must NOT be preceded by any white space.
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34 If {endpattern} is omitted, it defaults to a dot '.'
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35 like for the |:append| and |:insert| commands. This
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36 form of the |:ruby| command is mainly useful for
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37 including ruby code in vim scripts.
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38 Note: This command doesn't work when the Ruby feature
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39 wasn't compiled in. To avoid errors, see
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40 |script-here|.
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41
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42 Example Vim script: >
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43
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44 function! RedGem()
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45 ruby << EOF
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46 class Garnet
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47 def initialize(s)
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48 @buffer = VIM::Buffer.current
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49 vimputs(s)
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50 end
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51 def vimputs(s)
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52 @buffer.append(@buffer.count,s)
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53 end
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54 end
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55 gem = Garnet.new("pretty")
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56 EOF
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57 endfunction
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58 <
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59
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60 *:rubydo* *:rubyd* *E265*
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61 :[range]rubyd[o] {cmd} Evaluate Ruby command {cmd} for each line in the
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62 [range], with $_ being set to the text of each line in
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63 turn, without a trailing <EOL>. Setting $_ will change
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64 the text, but note that it is not possible to add or
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65 delete lines using this command.
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66 The default for [range] is the whole file: "1,$".
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67
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68 *:rubyfile* *:rubyf*
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69 :rubyf[ile] {file} Execute the Ruby script in {file}. This is the same as
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70 ":ruby load 'file'", but allows file name completion.
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71
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72 Executing Ruby commands is not possible in the |sandbox|.
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73
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74 ==============================================================================
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75 2. The VIM module *ruby-vim*
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76
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77 Ruby code gets all of its access to vim via the "VIM" module.
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78
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79 Overview >
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80 print "Hello" # displays a message
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81 VIM.command(cmd) # execute an ex command
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82 num = VIM::Window.count # gets the number of windows
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83 w = VIM::Window[n] # gets window "n"
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84 cw = VIM::Window.current # gets the current window
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85 num = VIM::Buffer.count # gets the number of buffers
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86 b = VIM::Buffer[n] # gets buffer "n"
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87 cb = VIM::Buffer.current # gets the current buffer
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88 w.height = lines # sets the window height
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89 w.cursor = [row, col] # sets the window cursor position
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90 pos = w.cursor # gets an array [row, col]
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91 name = b.name # gets the buffer file name
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92 line = b[n] # gets a line from the buffer
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93 num = b.count # gets the number of lines
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94 b[n] = str # sets a line in the buffer
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95 b.delete(n) # deletes a line
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96 b.append(n, str) # appends a line after n
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97 <
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98
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99 Module Functions:
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100
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101 *ruby-message*
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102 VIM::message({msg})
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103 Displays the message {msg}.
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104
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105 *ruby-set_option*
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106 VIM::set_option({arg})
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107 Sets a vim option. {arg} can be any argument that the ":set" command
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108 accepts. Note that this means that no spaces are allowed in the
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109 argument! See |:set|.
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110
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111 *ruby-command*
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112 VIM::command({cmd})
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113 Executes Ex command {cmd}.
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114
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115 *ruby-evaluate*
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116 VIM::evaluate({expr})
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117 Evaluates {expr} using the vim internal expression evaluator (see
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118 |expression|). Returns the expression result as a string.
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119
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120 ==============================================================================
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121 3. VIM::Buffer objects *ruby-buffer*
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122
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123 VIM::Buffer objects represent vim buffers.
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124
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125 Class Methods:
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126
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127 current Returns the current buffer object.
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128 count Returns the number of buffers.
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129 self[{n}] Returns the buffer object for the number {n}. The first number
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130 is 0.
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131
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132 Methods:
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133
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134 name Returns the name of the buffer.
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135 number Returns the number of the buffer.
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136 count Returns the number of lines.
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137 length Returns the number of lines.
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138 self[{n}] Returns a line from the buffer. {n} is the line number.
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139 self[{n}] = {str}
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140 Sets a line in the buffer. {n} is the line number.
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141 delete({n}) Deletes a line from the buffer. {n} is the line number.
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142 append({n}, {str})
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143 Appends a line after the line {n}.
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144
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145 ==============================================================================
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146 4. VIM::Window objects *ruby-window*
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147
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148 VIM::Window objects represent vim windows.
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149
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150 Class Methods:
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151
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152 current Returns the current window object.
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153 count Returns the number of windows.
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154 self[{n}] Returns the window object for the number {n}. The first number
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155 is 0.
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156
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157 Methods:
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158
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159 buffer Returns the buffer displayed in the window.
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160 height Returns the height of the window.
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161 height = {n} Sets the window height to {n}.
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162 cursor Returns a [row, col] array for the cursor position.
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163 cursor = [{row}, {col}]
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164 Sets the cursor position to {row} and {col}.
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165
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166 ==============================================================================
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167 4. Global variables *ruby-globals*
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168
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169 There are two global variables.
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170
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171 $curwin The current window object.
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172 $curbuf The current buffer object.
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173
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174 ==============================================================================
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175 vim:tw=78:ts=8:ft=help:norl:
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