Parse initial column from path to open argument

src/browser/atom-application.coffee

@@ -301,10 +301,12 @@ class AtomApplication
   #   :windowDimensions - Object with height and width keys.
   openPath: ({pathToOpen, pidToKillWhenClosed, newWindow, devMode, windowDimensions}={}) ->
     if pathToOpen
-      [basename, initialLine] = path.basename(pathToOpen).split(':')
-      if initialLine
-        pathToOpen = "#{path.dirname(pathToOpen)}/#{basename}"
-        initialLine -= 1 # Convert line numbers to a base of 0
+      [basename, initialLine, initialColumn] = path.basename(pathToOpen).split(':')
+      pathToOpen = "#{path.dirname(pathToOpen)}/#{basename}" if initialLine
+
+      # Convert line numbers to a base of 0
+      initialLine -= 1 if initialLine
+      initialColumn -= 1 if initialColumn
 
     unless devMode
       existingWindow = @windowForPath(pathToOpen) unless pidToKillWhenClosed or newWindow
@@ -320,7 +322,7 @@ class AtomApplication
 
       bootstrapScript ?= require.resolve('../window-bootstrap')
       resourcePath ?= @resourcePath
-      openedWindow = new AtomWindow({pathToOpen, initialLine, bootstrapScript, resourcePath, devMode, windowDimensions})
+      openedWindow = new AtomWindow({pathToOpen, initialLine, initialColumn, bootstrapScript, resourcePath, devMode, windowDimensions})
 
     if pidToKillWhenClosed?
       @pidsToOpenWindows[pidToKillWhenClosed] = openedWindow

src/browser/atom-window.coffee

@@ -20,7 +20,7 @@ class AtomWindow
   isSpec: null
 
   constructor: (settings={}) ->
-    {@resourcePath, pathToOpen, initialLine, @isSpec, @exitWhenDone} = settings
+    {@resourcePath, pathToOpen, initialLine, initialColumn, @isSpec, @exitWhenDone} = settings
     global.atomApplication.addWindow(this)
 
     @browserWindow = new BrowserWindow show: false, title: 'Atom', icon: @constructor.iconPath
@@ -47,7 +47,7 @@ class AtomWindow
     @browserWindow.loadUrl @getUrl(loadSettings)
     @browserWindow.focusOnWebView() if @isSpec
 
-    @openPath(pathToOpen, initialLine)
+    @openPath(pathToOpen, initialLine, initialColumn)
 
   getUrl: (loadSettingsObj) ->
     # Ignore the windowState when passing loadSettings via URL, since it could
@@ -113,12 +113,12 @@ class AtomWindow
       @browserWindow.on 'blur', =>
         @browserWindow.focusOnWebView()
 
-  openPath: (pathToOpen, initialLine) ->
+  openPath: (pathToOpen, initialLine, initialColumn) ->
     if @loaded
       @focus()
-      @sendCommand('window:open-path', {pathToOpen, initialLine})
+      @sendCommand('window:open-path', {pathToOpen, initialLine, initialColumn})
     else
-      @browserWindow.once 'window:loaded', => @openPath(pathToOpen, initialLine)
+      @browserWindow.once 'window:loaded', => @openPath(pathToOpen, initialLine, initialColumn)
 
   sendCommand: (command, args...) ->
     if @isSpecWindow()

src/window-event-handler.coffee

@@ -27,9 +27,9 @@ class WindowEventHandler
 
     @subscribe $(window), 'blur', -> $("body").addClass('is-blurred')
 
-    @subscribe $(window), 'window:open-path', (event, {pathToOpen, initialLine}) ->
+    @subscribe $(window), 'window:open-path', (event, {pathToOpen, initialLine, initialColumn}) ->
       unless fs.isDirectorySync(pathToOpen)
-        atom.workspaceView?.open(pathToOpen, {initialLine})
+        atom.workspaceView?.open(pathToOpen, {initialLine, initialColumn})
 
     @subscribe $(window), 'beforeunload', =>
       confirmed = atom.workspaceView?.confirmClose()