Author: larry Date: Mon Mar 31 10:00:05 2008 New Revision: 14530 Modified: doc/trunk/design/syn/S02.pod
Log: Clarify what is meant by evaluating subscripts in list context. Modified: doc/trunk/design/syn/S02.pod ============================================================================== --- doc/trunk/design/syn/S02.pod (original) +++ doc/trunk/design/syn/S02.pod Mon Mar 31 10:00:05 2008 @@ -12,9 +12,9 @@ Maintainer: Larry Wall <[EMAIL PROTECTED]> Date: 10 Aug 2004 - Last Modified: 17 Mar 2008 + Last Modified: 31 Mar 2008 Number: 2 - Version: 130 + Version: 131 This document summarizes Apocalypse 2, which covers small-scale lexical items and typological issues. (These Synopses also contain @@ -1366,6 +1366,12 @@ The context in which a subscript is evaluated is no longer controlled by the sigil either. Subscripts are always evaluated in list context. +(More specifically, they are evaluated in a variant of list context +known as I<slice> context, which preserves dimensional information +so that you can do multi-dimensional slices using semicolons. However, +each slice dimension evaluates its sublist in normal list context, +so functions called as part of a subscript don't see a slice context. +See S09 for more on slice context.) If you need to force inner context to item (scalar), we now have convenient single-character context specifiers such as + for numbers and ~ for strings:
