add CURSOR_CH, NOT_DIGIT_CH
tree6ba1832aab2def3128d9c43dd893f5edce863c26
-rw-r--r-- 6651 README
drwxr-xr-x - common
drwxr-xr-x - docs
drwxr-xr-x - ex
drwxr-xr-x - vi