[glib] gshell: Fix parsing of comments in command lines.

[Matthias Clasen <matthiasc src gnome org>]

commit 6e4acf44b3a943906432a2bf55223ac107d8e0c2
Author: Dominique Leuenberger <dimstar opensuse org>
Date:   Fri Aug 17 11:10:41 2012 +0200

    gshell: Fix parsing of comments in command lines.
    
    Fixes bug 562907

 glib/gshell.c      |   18 ++++++++++++++++++
 glib/tests/shell.c |    2 ++
 2 files changed, 20 insertions(+), 0 deletions(-)
---
diff --git a/glib/gshell.c b/glib/gshell.c
index 32cb334..6b166e1 100644
--- a/glib/gshell.c
+++ b/glib/gshell.c
@@ -520,6 +520,24 @@ tokenize_command_line (const gchar *command_line,
               /* FALL THRU */
               
             case '#':
+              if (p == command_line)
+	        { /* '#' was the first char */
+                  current_quote = *p;
+                  break;
+                }
+              switch(*(p-1))
+                {
+                  case ' ':
+                  case '\n':
+                  case '\0':
+                    current_quote = *p;
+                    break;
+                  default:
+                    ensure_token (&current_token);
+                    g_string_append_c (current_token, *p);
+		    break;
+                }
+              break;
             case '\\':
               current_quote = *p;
               break;
diff --git a/glib/tests/shell.c b/glib/tests/shell.c
index c1862b6..08fd3fe 100644
--- a/glib/tests/shell.c
+++ b/glib/tests/shell.c
@@ -59,6 +59,8 @@ static CmdlineTest cmdline_tests[] =
   { "foo \"yada yada \\$\\\"\"", 2, { "foo", "yada yada $\"", NULL }, -1 },
   { "foo \"c:\\\\\"", 2, { "foo", "c:\\", NULL }, -1 },
   { "foo # bla bla bla\n bar", 2, { "foo", "bar", NULL }, -1 },
+  { "foo a#b", 2, { "foo", "a#b", NULL }, -1 },
+  { "#foo", 0, { NULL }, -1 },
   { "foo bar \\", 0, { NULL }, G_SHELL_ERROR_BAD_QUOTING },
   { "foo 'bar baz", 0, { NULL }, G_SHELL_ERROR_BAD_QUOTING },
   { "foo '\"bar\" baz", 0, { NULL }, G_SHELL_ERROR_BAD_QUOTING },