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Sat, 05 Sep 2015 13:28:45 -0700 (PDT) | |
Date: | Sat, 5 Sep 2015 23:28:43 +0300 |
From: | "Vladimir Zhbanov (vzhbanov AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com> |
To: | geda-user AT delorie DOT com |
Subject: | Re: [geda-user] gschem question about internals |
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References: | <alpine DOT DEB DOT 2 DOT 00 DOT 1509051754320 DOT 6924 AT igor2priv> |
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On Sat, Sep 05, 2015 at 05:57:59PM +0200, gedau AT igor2 DOT repo DOT hu wrote: > Hi all, > > is there any cache or data structure gschem or libgeda builds from pin > names? Something I could refer to if I wanted to find U1-2 (refdes is U1, > pin is U2) fast. > > TIA, > > Igor2 > Hi, Igor. All objects have the same type OBJECT (struct st_object) defined in libgeda/include/libgeda/struct.h. It has pointers to "substructures". The substructure for components is COMPLEX, for pins it is LINE in essence. The struct COMPLEX (st_complex) has a member named prim_objs which is a list of component primitives. Text objects are attributes if their text is in the form 'name=value'. If an object is an attribute, the st_object member attached_to shows the object where the attribute is attached (if it is attached). The lowlevel logic of working with attributes is in libgeda/src/o_attrib.c. HTH, Vladimir
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