![]() Nonterminal ::= itemlist where itemlist is a list of terminals and nonterminals.Ĭharacters that appear within single quotes make up a literal string which appears directly in the file. It uses the following conventions: A production is of the form This format provides an interface for third-party applications, and represents P-CAD PCB designs, Schematic designs, and P-CAD libraries.ĭocument Syntax Conventions This document uses a modified BNF (Backus-Naur Form) syntax to describe the P-CAD ASCII fileformat. Because it is keyword-oriented, design files are easy to read, and not position-oriented. P-CAD ASCII is a keyword-oriented structured language which represents a complete electrical design in a human-readable and fully documented machine-readable format. This is the P-CAD ASCII Reference Manual. Version 7.5 ASCII.doc Copyright 1991-2006 Altium, Inc.
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