[Python-checkins] CVS: python/dist/src/Doc/ref ref5.tex,1.31,1.32

[Skip Montanaro]

Update of /cvsroot/python/python/dist/src/Doc/ref
In directory slayer.i.sourceforge.net:/tmp/cvs-serv9983/Doc/ref

Modified Files:
	ref5.tex 
Log Message:
list comprehensions.  see

    http://sourceforge.net/patch/?func=detailpatch&patch_id=100654&group_id=5470

for details.



Index: ref5.tex
===================================================================
RCS file: /cvsroot/python/python/dist/src/Doc/ref/ref5.tex,v
retrieving revision 1.31
retrieving revision 1.32
diff -C2 -r1.31 -r1.32
*** ref5.tex	2000/07/31 20:08:23	1.31
--- ref5.tex	2000/08/12 18:09:50	1.32
***************
*** 153,163 ****
  
  \begin{verbatim}
! list_display:   "[" [expression_list] "]"
  \end{verbatim}
  
! A list display yields a new list object.  If it has no expression
! list, the list object has no items.  Otherwise, the elements of the
! expression list are evaluated from left to right and inserted in the
! list object in that order.
  \obindex{list}
  \indexii{empty}{list}
--- 153,172 ----
  
  \begin{verbatim}
! list_display:   "[" [expression_list [list_iter]] "]"
! list_iter:   list_for | list_if
! list_for:    "for" expression_list "in" testlist [list_iter]
! list_if:     "if" test [list_iter]
  \end{verbatim}
  
! A list display yields a new list object.  Its contents are specified
! by providing either a list of expressions or a list comprehension.
! When a comma-separated list of expressions is supplied, its elements are
! evaluated from left to right and placed into the list object in that
! order.  When a list comprehension is supplied, it consists of a
! single expression followed by one or more "for" or "if" clauses.  In this
! case, the elements of the new list are those that would be produced
! by considering each of the "for" or "if" clauses a block, nesting from
! left to right, and evaluating the expression to produce a list element
! each time the innermost block is reached.
  \obindex{list}
  \indexii{empty}{list}