Editor Panel of SVN Client
You can open a file for editing in an internal built-in editor. There are default associations between frequently used file types and the internal editors in the File Types preferences panel.
Only one file at a time can be edited in an internal editor. If you try to open another file it will be opened in the same editor window. The editor provides syntax highlighting for known file types. This means that a different color will be used for each recognized token type found in the file. If the file's content type is unknown you will be prompted to choose the proper way the file should be opened.
After editing the content of the file in an internal editor you can save it to disk by using the Save action from the File menu or the Ctrl + S (Command + S on OS X) key shortcut. After saving your file you can see the file changed status in the Working Copy view.
If the internal editor associated with a file type is not the XML Editor, then the encoding set in the preferences for Encoding for non XML files is used for opening and saving a file of that type. This is necessary because in the case of XML files, the encoding is usually declared at the beginning of the XML file in a special declaration or it assumes the default value UTF-8, but in the case of non-XML files, there is no standard mechanism for declaring the encoding for the file.