schema: Don't validate paths

https://bugzilla.redhat.com/show_bug.cgi?id=1353296

On UNIX like systems there are no constraints on what characters
can be in file/dir names (except for NULL, obviously). Moreover,
some values that we think of as paths (e.g. disk source) are not
necessarily paths at all. For instance, some hypervisors take
that as an arbitrary identifier and corresponding file is then
looked up by hypervisor in its table. Instead of trying to fix
our regular expressions (and forgetting to include yet another
character there), lets drop the validation completely.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

docs/schemas/basictypes.rng

@@ -247,25 +247,25 @@
 
   <define name="filePath">
     <data type="string">
-      <param name="pattern">[a-zA-Z0-9_\.\+\-\\&amp;&quot;&apos;&lt;&gt;/%]+</param>
+      <param name="pattern">.+</param>
     </data>
   </define>
 
   <define name="dirPath">
     <data type="string">
-      <param name="pattern">[a-zA-Z0-9_\.\+\-\\&amp;&quot;&apos;&lt;&gt;/%]+</param>
+      <param name="pattern">.+</param>
     </data>
   </define>
 
   <define name="absFilePath">
     <data type="string">
-      <param name="pattern">/[a-zA-Z0-9_\.\+\-\\&amp;&quot;&apos;&lt;&gt;/%,:]+</param>
+      <param name="pattern">/.+</param>
     </data>
   </define>
 
   <define name="absDirPath">
     <data type="string">
-      <param name="pattern">/[a-zA-Z0-9_\.\+\-\\&amp;&quot;&apos;&lt;&gt;/%]*</param>
+      <param name="pattern">/.*</param>
     </data>
   </define>
 

tests/domainschemadata/domain-disk-source-space.xml

+<domain type='kvm'>
+  <name>dummy</name>
+  <uuid>aa86471a-e67b-41b1-8d7d-2dc37c2ac5ec</uuid>
+  <memory unit='KiB'>2097152</memory>
+  <currentMemory unit='KiB'>2097152</currentMemory>
+  <vcpu placement='static'>4</vcpu>
+  <os>
+    <type arch='x86_64' machine='pc-i440fx-2.5'>hvm</type>
+  </os>
+  <features>
+    <acpi/>
+    <apic/>
+  </features>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>restart</on_crash>
+  <pm>
+    <suspend-to-mem enabled='no'/>
+    <suspend-to-disk enabled='no'/>
+  </pm>
+  <devices>
+    <emulator>/usr/bin/qemu-system-x86_64</emulator>
+    <disk type='file' device='cdrom'>
+      <driver name='qemu' type='raw'/>
+      <source file='/a/path/with some space in it.iso'/>
+      <target dev='hda' bus='ide'/>
+      <readonly/>
+      <boot order='1'/>
+      <address type='drive' controller='0' bus='0' target='0' unit='0'/>
+    </disk>
+    <controller type='pci' index='0' model='pci-root'/>
+    <controller type='ide' index='0'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
+    </controller>
+  </devices>
+</domain>