.. _zprint-command-label:

==============
ZPRINT Command
==============

Material prepared from `M Programming Book`_ (Page 208) [WALTERS1997]_ and `GT.M Programmer's Guide`_

Command
#######

ZPRINT "routine" prints lines of source code, from starting and ending labels::

    ZPRINT <position1>:[position2]

Position1 is given as a label to start at, possibly with an offset.  Position2 (optional) is where to end.  If position2 is not provided, will only print the line at position1.

Examples
########

Here is one typical use of this command, on a routine named "helloworld1"::

    GTM>zprint fib^helloworld1
    fib ; fibonacci

    GTM>zprint fib^helloworld1:fib+5
    fib ; fibonacci
     s a=1 w a,!
     s b=2 w b,!
     for i=1:1:100 do
     . s c=a+b w c,!
     . s a=b s b=c

    GTM>zprint fib+-5^helloworld1:fib
     for i=1:1:10 do
     . write i
     . write "--",!
     quit

    fib ; fibonacci


.. _M Programming book: http://books.google.com/books?id=jo8_Mtmp30kC&printsec=frontcover&dq=M+Programming&hl=en&sa=X&ei=2mktT--GHajw0gHnkKWUCw&ved=0CDIQ6AEwAA#v=onepage&q=M%20Programming&f=false
.. _$ZPRINT page at GT.M Programmer's Guide: http://tinco.pair.com/bhaskar/gtm/doc/books/pg/UNIX_manual/ch06s15.html


Related
#######

*  :ref:`zedit-command-label`
*  :ref:`zlink-command-label`


References
##########

`ZPRINT page at GT.M Programmer's Guide`_


.. _M Programming book: http://books.google.com/books?id=jo8_Mtmp30kC&printsec=frontcover&dq=M+Programming&hl=en&sa=X&ei=2mktT--GHajw0gHnkKWUCw&ved=0CDIQ6AEwAA#v=onepage&q=M%20Programming&f=false
.. _GT.M Programmer's Guide: http://tinco.pair.com/bhaskar/gtm/doc/books/pg/UNIX_manual/index.html
.. _ZPRINT page at GT.M Programmer's Guide: http://tinco.pair.com/bhaskar/gtm/doc/books/pg/UNIX_manual/ch06s41.html