[x3d-public] X3D Regex

[Don Brutzman]

great to see the dialog and scrutiny, thanks!

intent is to allow legal/standard content but disallow (or at least diagnose) broken/problematic/nonstandard content.

for MFInt32,

- legal: 0 1 2 30 -0 -1 -2 -30

- illegal: 010 -020 (leading zeroes also an indicator that intermediate whitespace was dropped)

- single comma OK between numbers, but multiple commas an indicator that an intermediate number was dropped

I have the O'Reilly books on this topic, they often give good/adaptable "cookbook recipes" worth considering.  can look further next week.

it is helpful to be very wary of any conclusions whatsoever without testing a regex.

if alternatives are found, great - we can test with online tools, with Netbeans/X3D-Edit, and with regression testing of the X3D Examples Archive.

all the best, Don
-- 
Don Brutzman  Naval Postgraduate School, Code USW/Br       brutzman at nps.edu
Watkins 270,  MOVES Institute, Monterey CA 93943-5000 USA   +1.831.656.2149
X3D graphics, virtual worlds, navy robotics http://faculty.nps.edu/brutzman