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# E. Grammar

Someday I hope to expand this to include a semi-formal description of Octave's language.

E.1 Keywords |  |

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## E.1 Keywords

The following identifiers are keywords, and may not be used as variable or function names:

    all_va_args             endwhile
    break                   for
    case                    function
    catch                   global
    continue                gplot
    else                    gsplot
    elseif                  if
    end                     otherwise
    end_try_catch           return
    end_unwind_protect      switch
    endfor                  try
    endfunction             unwind_protect
    endif                   unwind_protect_cleanup
    endswitch               while

The following command-like functions are also speical. They may be used as simple variable names, but not as formal parameters for functions, or as the names of structure variables. Failed assignments leave them undefined (you can recover the orginal definition as a function using clear).

    casesen       echo          load          show
    cd            edit_history  ls            type
    chdir         format        more          which
    clear         help          run_history   who
    diary         history       save          whos
    dir           hold          set

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This document was generated by John W. Eaton on March, 28 2005 using texi2html