Common-Output-Formats.md

+## Namelists
+
+- Documentation
+  - https://cyber.dabamos.de/programming/modernfortran/namelists.html
+  - http://jules-lsm.github.io/vn4.2/namelists/intro.html
+  - https://www.cenapad.unicamp.br/parque/manuais/Xlf/lr96.HTM
+
+```
+NameList: '&' ID '\n' ListOfParameter '/'
+ListOfParameter: Parameter | ListOfParameter Parameter
+Parameter: ID ('.' ID)? '=' ValueSequence
+ValueSequence: Value | ValueSequence Value
+Value: INT | FLOAT | STRING | BOOLEAN
+```
+
+Comments start with `!` and end at `\n` 
+
+## CPP Header Files
+
+- Header
+- Footer
+- Set of `#define` or `#undef` entries