Added examples to readme

Author: cavaliercoder

README.md

@@ -7,10 +7,6 @@ import a Zabbix v3.2 template into Zabbix v2.0.
 The script works by applying conversion rules to a template, which manipulate
 the template XML to match the desired Zabbix version template format.
 
-To convert a Zabbix 3.2 template for import into v2.0:
-
-    $ zabbix-template-convertor -o 2.0 my_template.xml > my_template-2.0.xml
-
 __WARNING__: This project is still under active development and not ready for
              release.
 
@@ -35,6 +31,37 @@ optional arguments:
 ```
 
 
+## Example
+
+To convert a Zabbix 3.2 template for import into v2.0:
+
+    $ zabbix-template-convertor -o 2.0 my_template.xml > my_template-2.0.xml
+
+A number of transformations will take place. For example, Discovery Rule
+filters will be downgraded from the multiple-filter format introduced in Zabbix 2.4, to a single filter expression as follows:
+
+```xml
+<filter>
+    <evaltype>0</evaltype>
+    <formula/>
+    <conditions>
+        <condition>
+            <macro>{#IFNAME}</macro>
+            <value>@Network interfaces for discovery</value>
+            <operator>8</operator>
+            <formulaid>A</formulaid>
+        </condition>
+    </conditions>
+</filter>
+```
+
+Becomes:
+
+```xml
+<filter>{#IFNAME}:@Network interfaces for discovery</filter>
+```
+
+
 ## Coverage
 
 This project relies heavily on the community to report incompatability problems

zabbix-template-convertor

@@ -3,7 +3,7 @@ import xml.etree.ElementTree as ET
 import argparse
 import re
 
-__version__ = '1.1.0'
+__version__ = '1.0.0'
 
 # parse cmdline args
 parser = argparse.ArgumentParser(description='Migrate Zabbix templates between versions')
@@ -168,7 +168,7 @@ class FixDiscoveryRuleFilters(ConversionRule):
 
 				elif len(conditions) > 1:
 					# multi-filter has too many conditions
-					warn('filter for discovery rule \'%s\' has multiple conditions and cannot be converted - dropping' % discovery_rule_name)
+					warn('Filter for discovery rule \'%s\' has multiple conditions and cannot be converted - dropping' % discovery_rule_name)
 					node.clear()
 
 				else:
@@ -231,12 +231,10 @@ class FixSNMPDiscovery(ConversionRule):
 				m = re.search(r"^discovery\[(.*?,)([^,\]]+)", node.text)
 				if m is not None and len(m.groups()) == 2:
 					node.text = m.group(2)
-					if node.text.startswith('disc'):
-						warn(node.text)
 				else:
 					raise ValueError('Unrecognised SNMP OID for discovery rule \'%s\'' % discovery_rule.findtext('name'))
 
-class FixTriggerPrototypesDependencies(ConversionRule):
+class FixTriggerPrototypeDependencies(ConversionRule):
 	"""
 	Rule to ensure trigger prototype dependencies are not exported before 2.5.0.
 	See: ZBXNEXT-1229