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37
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1 local Luan = require "luan:Luan.luan"
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2 local error = Luan.error
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3 local String = require "luan:String.luan"
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4 local to_number = String.to_number or error()
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5 local new_menu_item = require("luan:swing/Menu_item.luan").new or error()
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6 local new_check_box_menu_item = require("luan:swing/Check_box_menu_item.luan").new or error()
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7 local new_menu_bar = require("luan:swing/Menu_bar.luan").new or error()
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8 local Menu = require "luan:swing/Menu.luan"
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9 local new_menu = Menu.new or error()
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10 local separator = Menu.separator or error()
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11 local Option_pane = require "luan:swing/Option_pane.luan"
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12 local show_message_dialog = Option_pane.show_message_dialog or error()
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13 local show_input_dialog = Option_pane.show_input_dialog or error()
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14 local Spell_checker = require "classpath:luan_editor/Spell_checker.luan"
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15 local spell_check = Spell_checker.spell_check or error()
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16
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17
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18 local function action_listener(fn)
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19 return function(_)
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20 fn()
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21 end
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22 end
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23
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24 local function add_menu_bar(window)
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25 local text_area = window.text_area
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26 local document = text_area.document
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27 local status_bar = window.status_bar
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28 local revert = new_menu_item{
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29 text = "Revert"
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30 enabled = window.has_file
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31 action_listener = action_listener(window.revert)
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32 }
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33 local undo = new_menu_item{
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34 text = "Undo"
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35 accelerator = "meta Z"
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36 action_listener = action_listener(document.undo)
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37 }
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38 local redo = new_menu_item{
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39 text = "Redo"
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40 accelerator = "meta shift Z"
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41 action_listener = action_listener(document.redo)
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42 }
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43 local function update_undo_redo()
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44 undo.set_enabled(document.can_undo())
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45 redo.set_enabled(document.can_redo())
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46 end
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47 window.update_undo_redo = update_undo_redo -- dont gc
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48 update_undo_redo()
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49 document.add_undo_listener(update_undo_redo)
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50
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51 local find_menu_item = new_check_box_menu_item{
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52 text = "Find and Replace"
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53 accelerator = "meta F"
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54 action_listener = function(event)
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55 window.show_find_panel(event.source.state)
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56 end
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57 }
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58 window.find_menu_item = find_menu_item
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59
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60 local menu_bar = new_menu_bar{
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61 menus = {
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62 new_menu{
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63 text = "File"
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64 menu_items = {
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65 new_menu_item{
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66 text = "New File"
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67 accelerator = "meta N"
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68 action_listener = action_listener(window.new)
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69 }
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70 new_menu_item{
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71 text = "Open..."
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72 accelerator = "meta O"
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73 action_listener = action_listener(window.open)
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74 }
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75 new_menu_item{
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76 text = "Save"
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77 accelerator = "meta S"
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78 action_listener = function(_)
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79 if window.save() then
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80 revert.set_enabled(true)
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81 end
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82 end
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83 }
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84 new_menu_item{
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85 text = "Print"
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86 action_listener = action_listener(text_area.print)
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87 }
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88 revert
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89 --[[
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90 new_menu_item{
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91 text = "Test"
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92 action_listener = function(_)
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93 local location = window.frame.location
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94 location.y = location.y - 20
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95 window.frame.location = location
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96 end
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97 }
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98 ]]
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99 }
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100 }
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101 new_menu{
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102 text = "Edit"
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103 menu_items = {
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104 undo
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105 redo
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106 separator
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107 new_menu_item{
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108 text = "Cut"
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109 accelerator = "meta X"
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110 action_listener = action_listener(text_area.cut)
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111 }
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112 new_menu_item{
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113 text = "Copy"
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114 accelerator = "meta C"
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115 action_listener = action_listener(text_area.copy)
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116 }
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117 new_menu_item{
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118 text = "Paste"
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119 accelerator = "meta V"
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120 action_listener = action_listener(text_area.paste)
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121 }
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122 separator
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123 new_menu_item{
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124 text = "Indent"
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125 accelerator = "meta CLOSE_BRACKET"
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126 action_listener = action_listener(window.indent)
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127 }
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128 new_menu_item{
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129 text = "Unindent"
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130 accelerator = "meta OPEN_BRACKET"
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131 action_listener = action_listener(window.unindent)
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132 }
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133 separator
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134 new_menu_item{
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135 text = "Select All"
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136 accelerator = "meta A"
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137 action_listener = action_listener(text_area.select_all)
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138 }
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139 }
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140 }
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141 new_menu{
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142 text = "Find"
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143 menu_items = {
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144 find_menu_item
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145 new_menu_item{
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146 text = "Find Case Insensitive"
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147 action_listener = window.find_case_insensitive
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148 }
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149 new_menu_item{
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150 text = "Convert Leading Tabs to Spaces"
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151 action_listener = window.tabs_to_spaces
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152 }
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153 new_menu_item{
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154 text = "Convert Leading Spaces to Tabs"
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155 action_listener = window.spaces_to_tabs
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156 }
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157 }
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158 }
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159 new_menu{
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160 text = "View"
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161 menu_items = {
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162 new_check_box_menu_item{
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163 text = "Word Wrap"
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164 state = text_area.line_wrap
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165 action_listener = function(event)
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166 window.set_line_wrap(event.source.state)
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167 end
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168 }
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169 new_check_box_menu_item{
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170 text = "Show Whitespace"
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171 accelerator = "meta W"
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172 state = text_area.whitespace_visible
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173 action_listener = function(event)
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174 window.set_whitespace_visible(event.source.state)
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175 end
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176 }
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177 new_check_box_menu_item{
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178 text = "Spell Check"
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179 accelerator = "meta SEMICOLON"
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180 action_listener = function(event)
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181 spell_check(text_area,event.source.state)
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182 end
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183 }
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184 new_menu_item{
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185 text = "Cursor Column"
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186 accelerator = "meta B"
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187 action_listener = function(_)
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188 status_bar.text = "Cursor Column: "..window.cursor_column()
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189 end
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190 }
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191 new_menu_item{
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192 text = "Goto Line"
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193 accelerator = "meta G"
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194 action_listener = function(_)
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195 local input = show_input_dialog( window.frame, "Goto line" )
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196 if input == nil then
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197 return
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198 end
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199 local line = to_number(input)
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200 try
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201 window.goto(line)
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202 status_bar.text = "Went to line "..line
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203 catch e
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204 status_bar.text = "Invalid line: "..input
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205 end
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206 end
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207 }
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208 new_menu_item{
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209 text = "Tab Size"
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210 action_listener = function(_)
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211 local input = show_input_dialog( window.frame, "Tab size", text_area.tab_size )
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212 if input == nil then
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213 return
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214 end
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215 local size = to_number(input)
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216 try
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217 window.set_tab_size(size)
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218 status_bar.text = "Set tab size to "..size
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219 catch e
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220 status_bar.text = "Invalid tab size: "..input
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221 end
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222 end
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223 }
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224 }
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225 }
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226 }
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227 }
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228 window.frame.set_menu_bar(menu_bar)
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229 end
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230
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231 return add_menu_bar
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