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11.28.2008 at 09:02AM PST, ID: 23942511
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8.2

regexp problem understanding execute-option

Asked by ventumsolve in Perl Programming Language

I have lines like this one

<covl pAOs="ro_uadcAOs1" txwr="ro_uadctxw1" IGeo="x_29_l_1_l_4_l_0_D_276.0_D_-94.07_D_262.0_D_-94.07_D_290.0_D_-94.07_l_0_D_301.06_D_-119.02_D_301.06_D_-105.04_D_301.06_D_-133.08_l_0_D_276.0_D_-145.06_D_290.0_D_-145.06_D_262.0_D_-145.06_l_0_D_250.04_D_-119.02_D_250.04_D_-133.08_D_250.04_D_-105.04_b_f_D_250.04_D_-145.06_D_301.06_D_-94.07_D_1_D_0_D_0_D_1_D_119.05_D_119.03"

I'm trying to create a number of geometries for inddesign (inx) by doing something like
s/_D_(-?)(\d{1,3})/_D_($1)$2+10/eg;

but can only make this work:

s/(\d{1,3})/$1+10/eg;

Problem is that I dont fully understand the /e - option. Anyone knows a good site where this part of regexp is explained? (and please dont give me perldoc perlre)

I want my pattern to be _D_ which will mark the coordinates, then there might be a sign for negative coordinates and then 1 to 3 digits. In the matching part the _D_ and sign remains the same but I want to increase the value by a given factor.

How will that look?


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[+][-]11.28.2008 at 02:53PM PST, ID: 23057799

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[+][-]11.28.2008 at 03:00PM PST, ID: 23057817

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Zone: Perl Programming Language
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Solution Provided By: ozo
Participating Experts: 1
Solution Grade: A
 
 
 
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