[gnome-builder] create-project: improve name validation

[Christian Hergert <chergert src gnome org>]

commit 4cf83eb22604181c1290d475a1776807adb4d74e
Author: Christian Hergert <chergert redhat com>
Date:   Fri Sep 9 19:46:36 2016 -0700

    create-project: improve name validation
    
    Don't allow names starting with a digit, nor names containing whitespace.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=771143

 plugins/create-project/gbp-create-project-widget.c |    9 +++++++++
 .../create-project/gbp-create-project-widget.ui    |    2 +-
 2 files changed, 10 insertions(+), 1 deletions(-)
---
diff --git a/plugins/create-project/gbp-create-project-widget.c 
b/plugins/create-project/gbp-create-project-widget.c
index c915180..d943393 100644
--- a/plugins/create-project/gbp-create-project-widget.c
+++ b/plugins/create-project/gbp-create-project-widget.c
@@ -99,10 +99,19 @@ gbp_create_project_widget_add_languages (GbpCreateProjectWidget *self,
 static gboolean
 validate_name (const gchar *name)
 {
+  if (name == NULL)
+    return FALSE;
+
+  if (g_unichar_isdigit (g_utf8_get_char (name)))
+    return FALSE;
+
   for (; *name; name = g_utf8_next_char (name))
     {
       gunichar ch = g_utf8_get_char (name);
 
+      if (g_unichar_isspace (ch))
+        return FALSE;
+
       if (ch == '/')
         return FALSE;
     }
diff --git a/plugins/create-project/gbp-create-project-widget.ui 
b/plugins/create-project/gbp-create-project-widget.ui
index e247a78..5b3bf01 100644
--- a/plugins/create-project/gbp-create-project-widget.ui
+++ b/plugins/create-project/gbp-create-project-widget.ui
@@ -109,7 +109,7 @@
                             <property name="wrap">true</property>
                             <property name="visible">true</property>
                             <property name="max-width-chars">60</property>
-                            <property name="label" translatable="yes">Unique name that is used for your 
project's folder and other technical resources. Should be in lower case without spaces.</property>
+                            <property name="label" translatable="yes">Unique name that is used for your 
project's folder and other technical resources. Should be in lower case without spaces and may not start with 
a number.</property>
                             <style>
                               <class name="dim-label"/>
                             </style>