allow double-click in file browser to load data files * files-dock-widget.cc (files_dock_widget::display_directory): If file looks like Octave data file, load it instead of opening with editor. * ls-mat-ascii.h, ls-mat-ascii.cc (get_lines_and_columns): New option to supress error messages. New option to check for numeric values. (looks_like_mat_ascii_file): New function. * load-save.h load-save.cc (is_octave_data_file): New function. (get_file_format): Don't return LS_MAT_ASCII unless the file really looks like it is a numeric data file.

--- a/libinterp/interp-core/ls-mat-ascii.h
+++ b/libinterp/interp-core/ls-mat-ascii.h
@@ -31,4 +31,6 @@
 save_mat_ascii_data (std::ostream& os, const octave_value& val_arg,
                      int precision, bool tabs = false);
 
+extern bool looks_like_mat_ascii_file (const std::string& filename);
+
 #endif