struct::stack - Create and manipulate stack objects

       This  document,  and  the package it describes, will undoubtedly contain bugs and other problems.  Please
       report    such    in    the    category    struct::stack     of     the     TcllibTrackers
       [http://core.tcl.tk/tcllib/reportlist].   Please  also report any ideas for enhancements you may have for
       either package and/or documentation.

       When proposing code changes, please provide unifieddiffs, i.e the output of diff-u.

       Note further that attachments are strongly preferred over inlined patches. Attachments  can  be  made  by
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       Data structures

tcllib                                                1.5.4                                  struct::stack(3tcl)

       The ::struct namespace contains a commands for processing finite stacks.

       It  exports  a  single command, ::struct::stack. All functionality provided here can be reached through a
       subcommand of this command.

       Note: As of  version  1.3.3  of  this  package  a  critcl  based  C  implementation  is  available.  This
       implementation however requires Tcl 8.4 to run.

       The  ::struct::stack  command creates a new stack object with an associated global Tcl command whose name
       is stackName.  This command may be used to invoke various operations on the stack.  It has the  following
       general form:

       stackNameoption ?argarg...?
              Option  and  the  args  determine  the  exact behavior of the command.  The following commands are
              possible for stack objects:

       stackNameclear
              Remove all items from the stack.

       stackNamedestroy
              Destroy the stack, including its storage space and associated command.

       stackNameget
              Returns the whole contents of the stack as a list, without removing them from the stack.

       stackNamegetr
              A variant of get, which returns the contents in reversed order.

       stackNamepeek ?count?
              Return the top count items of the stack, without removing them from the stack.  If  count  is  not
              specified,  it  defaults  to  1.  If count is 1, the result is a simple string; otherwise, it is a
              list.  If specified, count must be greater than or equal to 1.  If there are not enoughs items  on
              the stack to fulfull the request, this command will throw an error.

       stackNamepeekr ?count?
              A variant of peek, which returns the items in reversed order.

       stackNametrim ?newsize?
              Shrinks  the  stack to contain at most newsize elements and returns a list containing the elements
              which were removed. Nothing is done if the stack is already at the specified size, or smaller.  In
              that case the result is the empty list.

       stackNametrim* ?newsize?
              A variant of trim which performs the shrinking, but does not return the removed elements.

       stackNamepop ?count?
              Return  the  top  count  items  of  the  stack,  and  remove them from the stack.  If count is not
              specified, it defaults to 1.  If count is 1, the result is a simple string;  otherwise,  it  is  a
              list.   If specified, count must be greater than or equal to 1.  If there are not enoughs items on
              the stack to fulfull the request, this command will throw an error.

       stackNamepushitem ?item...?
              Push the item or items specified onto the stack.  If more than one item is  given,  they  will  be
              pushed in the order they are listed.

       stackNamesize
              Return the number of items on the stack.

       graph, matrix, queue, tree

       struct::stack - Create and manipulate stack objects

       package require Tcl8.59

       package require struct::stack?1.5.4?stackNameoption ?argarg...?

       stackNameclearstackNamedestroystackNamegetstackNamegetrstackNamepeek ?count?

       stackNamepeekr ?count?

       stackNametrim ?newsize?

       stackNametrim* ?newsize?

       stackNamepop ?count?

       stackNamepushitem ?item...?

       stackNamesize

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