PATCH: find .pod files for perldoc better

[Peter Stephenson <p.w.stephenson@ntlworld.com>]

This enhances completion for perldoc so that it locates .pod files in
the include path.  Currently only .pm files are searched for.  However,
followers of Perl 6 will note files with names like Perl6/Overview.pod
are appearing, and perldoc will locate them.

Passing arguments to completion functions is unnecessarily difficult; as
I noted in _perforce:

  # Hack: if there is a job view, it is at the end.
  # This is nasty, it's really unnecessarily difficult to
  # pass arguments within completion functions...

I think, therefore, the way I've done it here is the most likely to
work.

Index: Completion/Unix/Command/_perldoc
===================================================================
RCS file: /cvsroot/zsh/zsh/Completion/Unix/Command/_perldoc,v
retrieving revision 1.4
diff -u -r1.4 _perldoc
--- Completion/Unix/Command/_perldoc	8 Jun 2005 12:45:35 -0000	1.4
+++ Completion/Unix/Command/_perldoc	2 Aug 2006 22:13:31 -0000
@@ -49,7 +49,7 @@
           _files -g "*.(pod|pm)(-.)" && ret=0
     else
       _alternative \
-	'modules:module: _perl_modules' \
+	'modules:module: _perl_modules -tP' \
 	'pods:base pod: _perl_basepods' \
 	'files:module or .pod file:_files -g "*.(pod|pm)(-.)"' && ret=0
     fi
Index: Completion/Unix/Type/_perl_modules
===================================================================
RCS file: /cvsroot/zsh/zsh/Completion/Unix/Type/_perl_modules,v
retrieving revision 1.4
diff -u -r1.4 _perl_modules
--- Completion/Unix/Type/_perl_modules	8 Jun 2005 12:45:36 -0000	1.4
+++ Completion/Unix/Type/_perl_modules	2 Aug 2006 22:13:31 -0000
@@ -6,7 +6,12 @@
 #
 # Calculate all installed Perl modules.  The result is cached
 # for future use.
-#
+# 
+# Options:
+# 
+# -t[types]: indicate file types; currently the only one is -tP,
+# to include .pod files as well as modules.
+# 
 # Available styles:
 #
 # * try-to-use-pminst
@@ -20,22 +25,28 @@
 _perl_modules () {
   # Set a sensible default caching policy.  This has to be done inside
   # this function otherwise we wouldn't know the context for the style.
-  local update_policy
+  local update_policy sufpat=".pm" with_pod
   zstyle -s ":completion:${curcontext}:" cache-policy update_policy
   if [[ -z "$update_policy" ]]; then
     zstyle ":completion:${curcontext}:" cache-policy \
       _perl_modules_caching_policy
   fi
 
+  if [[ $argv[-1] = -tP ]]; then
+    argv=("${(@)argv[1,-2]}")
+    sufpat="(.pm|.pod)"
+    with_pod=_with_pod
+  fi
+
   local perl=${words[1]%doc} perl_modules
   if whence $perl >/dev/null; then
-    perl_modules=_${${perl//[^[:alnum:]]/_}#_}_modules
+    perl_modules=_${${perl//[^[:alnum:]]/_}#_}_modules$with_pod
   elif (( ${+commands[perl]} )); then
     perl=perl
-    perl_modules=_perl_modules
+    perl_modules=_perl_modules$with_pod
   else
     perl=
-    perl_modules=_unknown_perl_modules
+    perl_modules=_unknown_perl_modules$with_pod
   fi
 
   if ( [[ ${(P)+perl_modules} -eq 0 ]] || _cache_invalid $perl_modules ) &&
@@ -68,7 +79,7 @@
 
         # Find all modules
         if [[ -d $libdir && -x $libdir ]]; then
-          new_pms=( $libdir/{[A-Z]*/***/,}*.pm~*blib* )
+          new_pms=( $libdir/{[A-Z]*/***/,}*${~sufpat}~*blib* )
           new_pms=( "${(@)new_pms##$libdir/##}" )
         fi
 


-- 
Peter Stephenson <p.w.stephenson@ntlworld.com>
Web page now at http://homepage.ntlworld.com/p.w.stephenson/