I'm trying to parse a section of a large file with Java's Scanner library, but I'm having a hard time trying to determine the best route to parse this text. 

```
SECTOR 199
FLAGS 0x1000
AMBIENT LIGHT 0.67
EXTRA LIGHT 0.00
COLORMAP 0
TINT 0.00 0.00 0.00
BOUNDBOX 7.399998 8.200002 6.199998 9.399998 8.500000 7.099998
COLLIDEBOX 7.605121 8.230770 6.200000 9.399994 8.469233 7.007693
CENTER 8.399998 8.350001 6.649998
RADIUS 1.106797
VERTICES 12
0: 1810
1: 1976
2: 1977
3: 1812
4: 1978
5: 1979
6: 1820
7: 1980
8: 1821
9: 1981
10: 1982
11: 1811
SURFACES 1893 8

```

It has some optional fields that(SOUND, COLLIDEBOX), so I can't parse in a particular order like I've been doing with the previous part of the file. I'm unsure how to go about doing this without making it terribly inefficient, at the moment I've been thinking about parsing each line, then splitting it with the String.split("\s+") to get the values, but I'm curious what other options I may have. :\