Gri Mode: command completion

Chapters: 1: Introduction 2: Simple example 3: Invocation 4: Finer Control 5: X-Y Plots 6: Contour Plots 7: Image Plots 8: Examples 9: Gri Commands 10: Programming 11: Environment 12: Emacs Mode 13: History 14: Installation 15: Gri Bugs 16: Test Suite 17: Gri in Press 18: Acknowledgments 19: License Indices: Concepts Commands Variables | ### 12.4.3: Command name abbreviation gri-mode uses command name abbreviations in a non-Unix way in that all words that compose the command name may be abbreviated (and not only the word preceding the cursor). For example, one can type in
    dr x a`M-tab'
and it will expand1 all the words to
    draw x axis [at bottom|top|{.y. [cm]} [lower|upper]]
This is reminiscent of VMS, which the author was used to when gri-mode.el was initially created. It's likely that a gri-mode.el rewritten from scratch wouldn't have this feature since it's not part of the Unix mindset.