4.21. Convert Tabs to Spaces

Converts all the tabs within the current line to spaces. Enter the tab width to be used (typically 8) within the dialog box. The conversion preserves column positions of the text correctly. In other words, this filter does not do a dumb replace of the tab character by the specified number of space characters, but rather attempts to do what most editors do: which is to replace the tabs with spaces correctly preserving the column positions in the text.