Fix indexer printing newlines when parsing math.
Fix indexer printing newlines when parsing math.

Prevent newline from failing through in some start conditions.
e.g. "\text{" will start a <ign> condition and in this condition
\n is going to be printed out because we were not handling it.

t-k-/the-day-after-tomorrow,t-k-/the-day-after-tomorrow,t-k-/the-day-after-tomorrow,approach0/search-engine,yzhan018/the-day-after-tomorrow,t-k-/the-day-after-tomorrow,t-k-/the-day-after-tomorrow,yzhan018/the-day-after-tomorrow,yzhan018/the-day-after-tomorrow,t-k-/the-day-after-tomorrow,yzhan018/the-day-after-tomorrow,approach0/search-engine,approach0/search-engine,t-k-/the-day-after-tomorrow,yzhan018/the-day-after-tomorrow,yzhan018/the-day-after-tomorrow,approach0/search-engine,yzhan018/the-day-after-tomorrow