From ecd6911b13179d49e8ddd56f393f8775047d3251 Mon Sep 17 00:00:00 2001
From: Andrew Stubbs <andrew.stubbs@st.com>
Date: Tue, 21 Feb 2006 19:46:48 +0000
Subject: 2006-02-21  Andrew Stubbs  <andrew.stubbs@st.com>

	* defs.h (directory_switch): Add prototype.
	* main.c (captured_main): Use directory_switch() instead of
	directory_command() to add directories from the -d switch.
	* source.c (directory_switch): New function.
	(add_path): Use buildargv() to parse spaces in filenames properly.
	Strip multiple trailing '/' rather than just one.
---
 gdb/source.c | 81 +++++++++++++++++++++++++++++++++++++++---------------------
 1 file changed, 53 insertions(+), 28 deletions(-)

(limited to 'gdb/source.c')

diff --git a/gdb/source.c b/gdb/source.c
index f9f7dd1914e..3b93362b5e3 100644
--- a/gdb/source.c
+++ b/gdb/source.c
@@ -378,6 +378,15 @@ directory_command (char *dirname, int from_tty)
   forget_cached_source_info ();
 }
 
+/* Add a path given with the -d command line switch.
+   This will not be quoted so we must not treat spaces as separators.  */
+
+void
+directory_switch (char *dirname, int from_tty)
+{
+  add_path (dirname, &source_path, 0);
+}
+
 /* Add zero or more directories to the front of an arbitrary path.  */
 
 void
@@ -397,56 +406,72 @@ add_path (char *dirname, char **which_path, int parse_separators)
 {
   char *old = *which_path;
   int prefix = 0;
+  char **argv = NULL;
+  char *arg;
+  int argv_index = 0;
 
   if (dirname == 0)
     return;
 
-  dirname = xstrdup (dirname);
-  make_cleanup (xfree, dirname);
+  if (parse_separators)
+    {
+      /* This will properly parse the space and tab separators
+	 and any quotes that may exist. DIRNAME_SEPARATOR will
+	 be dealt with later.  */
+      argv = buildargv (dirname);
+      make_cleanup_freeargv (argv);
+
+      if (argv == NULL)
+	nomem (0);
+
+      arg = argv[0];
+    }
+  else
+    {
+      arg = xstrdup (dirname);
+      make_cleanup (xfree, arg);
+    }
 
   do
     {
-      char *name = dirname;
+      char *name = arg;
       char *p;
       struct stat st;
 
       {
 	char *separator = NULL;
-	char *space = NULL;
-	char *tab = NULL;
 
+	/* Spaces and tabs will have been removed by buildargv().
+	   The directories will there be split into a list but
+	   each entry may still contain DIRNAME_SEPARATOR.  */
 	if (parse_separators)
-	  {
-	    separator = strchr (name, DIRNAME_SEPARATOR);
-	    space = strchr (name, ' ');
-	    tab = strchr (name, '\t');
-	  }
+	  separator = strchr (name, DIRNAME_SEPARATOR);
 
-	if (separator == 0 && space == 0 && tab == 0)
-	  p = dirname = name + strlen (name);
+	if (separator == 0)
+	  p = arg = name + strlen (name);
 	else
 	  {
-	    p = 0;
-	    if (separator != 0 && (p == 0 || separator < p))
-	      p = separator;
-	    if (space != 0 && (p == 0 || space < p))
-	      p = space;
-	    if (tab != 0 && (p == 0 || tab < p))
-	      p = tab;
-	    dirname = p + 1;
-	    while (*dirname == DIRNAME_SEPARATOR
-		   || *dirname == ' '
-		   || *dirname == '\t')
-	      ++dirname;
+	    p = separator;
+	    arg = p + 1;
+	    while (*arg == DIRNAME_SEPARATOR)
+	      ++arg;
 	  }
+
+	/* If there are no more directories in this argument then start
+	   on the next argument next time round the loop (if any).  */
+	if (*arg == '\0')
+	  arg = parse_separators ? argv[++argv_index] : NULL;
       }
 
-      if (!(IS_DIR_SEPARATOR (*name) && p <= name + 1)	 /* "/" */
+      /* name is the start of the directory.
+	 p is the separator (or null) following the end.  */
+
+      while (!(IS_DIR_SEPARATOR (*name) && p <= name + 1)	/* "/" */
 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
       /* On MS-DOS and MS-Windows, h:\ is different from h: */
-	  && !(p == name + 3 && name[1] == ':') 	 /* "d:/" */
+	     && !(p == name + 3 && name[1] == ':')		/* "d:/" */
 #endif
-	  && IS_DIR_SEPARATOR (p[-1]))
+	     && IS_DIR_SEPARATOR (p[-1]))
 	/* Sigh. "foo/" => "foo" */
 	--p;
       *p = '\0';
@@ -577,7 +602,7 @@ add_path (char *dirname, char **which_path, int parse_separators)
       }
     skip_dup:;
     }
-  while (*dirname != '\0');
+  while (arg != NULL);
 }
 
 
-- 
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