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

12.4.2: Possible completions of gri command names

When you press `M-tab' to complete a command name (or a variable or synonym name as described below), gri-mode will expand it as much as it can and do nothing further. If you type in nothing more and insist by using `gri-complete' (`M-tab') again, gri-mode will respond by showing all possible completions in the `*completions*' buffer. In this way you can use `gri-complete' word-by-word to abbreviate commands without ever displaying completions, like you would for file completion in emacs or bash.

If a completion is ambiguous, but could be exact, invoke gri-complete a second time to complete it. e.g.

sh`M-tab'

expands to

show

and informs you that 12 possible completions exists; then

show`M-tab'

will display these completions in the completions buffer; then typing `M-tab' again forces completion to a complete but not unique possibility:

show .value.|{rpn ...}|"\text" [.value.|{rpn ...}|text [...]]

Completions are shown immediately (without invoking gri-complete again) if the completions window is already displayed or if there are 3 possibilities or less. In this case they are displayed in the minibuffer.

Note: The `*completions*' window is deleted after a command is fully completed. `gri-complete' uses its own `*completions*' buffer, which is not displayed in the buffer-list to avoid clutter.