Hey Jonathan,
I agree with you, there is no obvious reasons why these rules are not already available for XML. You may perfectly want to define things to do or fix on some manually crafted XML files.
I consequently created the following tickets to implements these 2 new rules:
- SONARXML-89 - Rule S1134: Track uses of “FIXME” tags
- SONARXML-90 - Rule S1135: Track uses of “TODO” tags
Cheers,
Michael