Subject:
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Re: regular expressions for DAT file subpart lines
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Newsgroups:
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lugnet.off-topic.geek
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Date:
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Wed, 23 Jun 1999 21:37:12 GMT
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Viewed:
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156 times
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Oops, I forgot a few other odd things. I *think* your expression allows
these, but I'm not sure:
.1
-.1
0.
-0.
001
1E
BTW, the color-code can be in scientific notation. The line-type can't, at
least, it can't in LDLite. I'm betting LDraw would recognize 1E0 as a
valid line-type.
What about line-breaks? LDraw allows those in the middle of the line. And
anything extra after the filename is ignored, I think. At least, on
line-types 2 through 5, anything after the last parameter and before a line
break is ignored.
Steve
On Wed, 23 Jun 1999 17:01:01 GMT, Sproaticus <jsproat@geocities.com> wrote:
> Steve Bliss wrote:
> > On Tue, 22 Jun 1999 22:58:55 GMT, Sproaticus <jsproat@geocities.com> wrote:
> > > Whoops! I need to account for floating point values within the matrix.
> > You sure do. Can your code handle the following:
> > 1 4E0 0 0 0 1E0 0 0 0 1E0 0 0 0 1E0 3001.dat
>
> Arg. Is this allowed? I guess it should be; the original parser was
> implemented using Pascal...
>
> Yes, ugly getting it is, hmmm? :-,
>
> if( $linein =~ m/
> ^
> \s*1
> # indicates a subpart
> \s+([0-9]+)
> # color
> (?:\s+[+-]?[0-9]+(?:\.[0-9]+)?(?:E[+-]?[0-9+])?){3}
> # coordinates
> (?:\s+[+-]?[0-9]+(?:\.[0-9]+)?(?:E[+-]?[0-9+])?){9}
> # 3 x 3 matrix
> \s+(\S+)
> # part name
> \s*$
> /xi ) {
> # $1 = color
> # $2 = part
> }
>
> Cheers,
> - jsproat
>
> --
> Jeremy H. Sproat <jsproat@geocities.com>
> http://www.geocities.com/SiliconValley/Horizon/5249/
> When constabulary duty's to be done, a Jedi Knight's lot is not a happy one
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Message has 1 Reply:
 | | "Well-Formed" LDraw (Was: regular expressions for DAT file subpart lines)
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| (...) Nope, won't take a fraction w/o the integer part; gotta fix that (...) Nope, same reason as above (...) Nope, won't take a fraction w/o the fraction part, gotta fix that (...) Nope, same reason as above (...) Yep! Woo-Hoo!!! :-, (...) Nope, I (...) (25 years ago, 23-Jun-99, to lugnet.off-topic.geek, lugnet.cad.dev)
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