segment: Make negative numbers into single segments.
[pspp] / tests / language / lexer /
drwxr-xr-x   ..
-rw-r--r-- 4062 command-name-test.c
-rw-r--r-- 7505 command-name.at
-rw-r--r-- 3303 lexer.at
-rw-r--r-- 4574 scan-test.c
-rw-r--r-- 16054 scan.at
-rw-r--r-- 10108 segment-test.c
-rw-r--r-- 32658 segment.at
-rw-r--r-- 2128 variable-parser.at