Re: Problem with named directories

[Peter Stephenson <pws@csr.com>]

Peter Stephenson wrote:
> I think it might be better to prune the name of the directory when it is
> assigned.

On second thoughts, probably safer not to prune initial slashes, in case
// is special.

Index: ChangeLog
===================================================================
RCS file: /cvsroot/zsh/zsh/ChangeLog,v
retrieving revision 1.2528
diff -u -r1.2528 ChangeLog
--- ChangeLog	22 Feb 2005 13:12:35 -0000	1.2528
+++ ChangeLog	22 Feb 2005 18:13:31 -0000
@@ -1,5 +1,9 @@
 2005-02-22  Peter Stephenson  <pws@csr.com>
 
+	* 20843: Doc/Zsh/expn.yo, Src/utils.c: named directories always
+	have trailing slashes pruned.  Any related parameter remains
+	unmodified.
+
 	* Andrey Borzenkov: 20838 with minor tweaks: Src/system.h,
 	Src/Zle/zle.h, Src/Zle/zle_main.c, Src/Zle/zle_misc.c,
 	Src/Zle/zle_tricky.c, Src/Zle/zle_utils.c: fixes to
Index: Doc/Zsh/expn.yo
===================================================================
RCS file: /cvsroot/zsh/zsh/Doc/Zsh/expn.yo,v
retrieving revision 1.50
diff -u -r1.50 expn.yo
--- Doc/Zsh/expn.yo	10 Jan 2005 17:31:25 -0000	1.50
+++ Doc/Zsh/expn.yo	22 Feb 2005 18:13:31 -0000
@@ -1138,6 +1138,8 @@
 Named directories are typically home directories for users on the system.
 They may also be defined if the text after the `tt(~)' is the name
 of a string shell parameter whose value begins with a `tt(/)'.
+Note that trailing slashes will be removed from the path to the directory
+(though the original parameter is not modified).
 It is also possible to define directory names using the tt(-d) option to the
 tt(hash) builtin.
 
Index: Src/utils.c
===================================================================
RCS file: /cvsroot/zsh/zsh/Src/utils.c,v
retrieving revision 1.72
diff -u -r1.72 utils.c
--- Src/utils.c	1 Feb 2005 10:53:18 -0000	1.72
+++ Src/utils.c	22 Feb 2005 18:13:32 -0000
@@ -525,6 +525,7 @@
 adduserdir(char *s, char *t, int flags, int always)
 {
     Nameddir nd;
+    char *eptr;
 
     /* We don't maintain a hash table in non-interactive shells. */
     if (!interact)
@@ -558,7 +559,18 @@
     /* add the name */
     nd = (Nameddir) zshcalloc(sizeof *nd);
     nd->flags = flags;
-    nd->dir = ztrdup(t);
+    eptr = t + strlen(t);
+    while (eptr > t && eptr[-1] == '/')
+	eptr--;
+    if (eptr == t) {
+	/*
+	 * Don't abbreviate multiple slashes at the start of a
+	 * named directory, since these are sometimes used for
+	 * special purposes.
+	 */
+	nd->dir = ztrdup(t);
+    } else
+	nd->dir = ztrduppfx(t, eptr - t);
     /* The variables PWD and OLDPWD are not to be displayed as ~PWD etc. */
     if (!strcmp(s, "PWD") || !strcmp(s, "OLDPWD"))
 	nd->flags |= ND_NOABBREV;

-- 
Peter Stephenson <pws@csr.com>                  Software Engineer
CSR PLC, Churchill House, Cambridge Business Park, Cowley Road
Cambridge, CB4 0WZ, UK                          Tel: +44 (0)1223 692070


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