- If you turn on this powerful verb, you'll be able to follow the
- activity of the **parser** -- that part of the library which tries to
- make sense of what the player types -- and this will indeed be a
- wonderful moment of gratitude that someone else took the trouble of
- writing it. Since the parser does so many things, you can decide the
- level of detail about the displayed information with the *number*
- parameter, which can go from 1 (minimum info) to 5 (maximum info). By
- default, TRACE ON and TRACE with no number sets level 1. Trace level
- 1 shows the grammar line that the parser is thinking about, while
- level 2 shows each individual token on each grammar line that it
- tries. The information displayed with higher levels may become quite
- hacky, and you are advised to use this feature only if nothing else
- helps.
-
+ If you turn on this powerful verb, you'll be able to follow the activity
+ of the :term:`parser` -- that part of the library which tries to make
+ sense of what the player types -- and this will indeed be a wonderful
+ moment of gratitude that someone else took the trouble of writing
+ it. Since the parser does so many things, you can decide the level of
+ detail about the displayed information with the *number* parameter, which
+ can go from 1 (minimum info) to 5 (maximum info). By default, TRACE ON
+ and TRACE with no number sets level 1. Trace level 1 shows the grammar
+ line that the parser is thinking about, while level 2 shows each
+ individual token on each grammar line that it tries. The information
+ displayed with higher levels may become quite hacky, and you are advised
+ to use this feature only if nothing else helps.