fix iosxr_banner (#27378)

Signed-off-by: Trishna Guha <trishnaguha17@gmail.com>

lib/ansible/modules/network/iosxr/iosxr_banner.py

@@ -87,6 +87,8 @@ commands:
     - string
 """
 
+import re
+
 from ansible.module_utils.basic import AnsibleModule
 from ansible.module_utils.iosxr import get_config, load_config
 from ansible.module_utils.iosxr import iosxr_argument_spec, check_args
@@ -97,12 +99,13 @@ def map_obj_to_commands(updates, module):
     want, have = updates
     state = module.params['state']
 
-    if state == 'absent' or (state == 'absent' and
-                             'text' in have.keys() and have['text']):
-        commands.append('no banner %s' % module.params['banner'])
+    if state == 'absent':
+        if have.get('state') != 'absent' and ('text' in have.keys() and have['text']):
+            commands.append('no banner %s' % module.params['banner'])
 
     elif state == 'present':
-        if want['text'] and (want['text'] != have.get('text')):
+        if (want['text'] and
+                want['text'].encode().decode('unicode_escape').strip("'") != have.get('text')):
             banner_cmd = 'banner %s ' % module.params['banner']
             banner_cmd += want['text'].strip()
             commands.append(banner_cmd)
@@ -113,9 +116,17 @@ def map_obj_to_commands(updates, module):
 def map_config_to_obj(module):
     flags = 'banner %s' % module.params['banner']
     output = get_config(module, flags=[flags])
+
+    match = re.search(r'banner (\S+) (.*)', output, re.DOTALL)
+    if match:
+        text = match.group(2).strip("'")
+    else:
+        text = None
+
     obj = {'banner': module.params['banner'], 'state': 'absent'}
+
     if output:
-        obj['text'] = output
+        obj['text'] = text
         obj['state'] = 'present'
 
     return obj
@@ -124,7 +135,7 @@ def map_config_to_obj(module):
 def map_params_to_obj(module):
     text = module.params['text']
     if text:
-        text = str(text).strip()
+        text = "%r" % (str(text).strip())
 
     return {
         'banner': module.params['banner'],