Automatic compilation of electronic telecommunications system message generation code
View Patent ↗A method and apparatus of generating code for producing messages in a processor; the messages being in conformance with the ASN.1 (Abstract Syntax Notation.1). Standards of the International Telecommunications Union (ITU), and the International Standards Organization (ISO). An ASYN software tool uses input describing protocol in the ASN.1 Standard, and uses a general script input to describe the rules for manipulating the ASN.1 inputs. The output of ASYN tool is used together with Application Programmer input describing the requirements for a specific application as inputs to a CASE (Computer Aided Software Engineering) software tool development environment. The output of the CASE tool development environment is then used by a Compiler for the Object Processor which provides the messages. Advantageously, changes in the Application Programmer input can be compiled without further manual effort. Advantageously, once the general script input file has been created, changes in the ASN.1 input file can be compiled without further manual effort.
1. A method of generating compiled code for producing messages in conformance with an ASN (Abstract Syntax Notation) Standard, comprising the steps of:
using a syntax analysis process, compiling an ASN input file describing rules of said ASN Standard into an ASN Data Repository comprising a data structure of said ASN input file;
generating a file of general script lexemes using a lexical analysis of a general script source containing rules for creating information in said ASN Data Repository;
using a syntax analyzer, analyzing said general script lexemes to create a file of general script precompiled functions;
using a general script Executor to act upon entries in said ASN Data Repository with said general script precompiled functions to produce an output file; and
using an Application Programmer input file describing requirements for messages for a particular application, and said output file as inputs to a CASE tool to generate outputs for use by a compiler for a particular processor.
2. The method of claim 1 , further comprising the step of:
compiling code for said particular processor using said output of said CASE tool in said compiler for said particular processor.
3. The method of claim 1 , wherein the step of compiling said ASN input file into said ASN Data Repository, comprises the steps of:
generating said ASN input file through a lexical analysis of ASN source statements to generate a file of ASN lexemes; and
using a syntax analyzer to compile said ASN lexemes into said ASN Data Repository.
4. Apparatus for compiling code for producing messages in conformance with an ASN (Abstract Syntax Notation) Standard, comprising:
a data processing system, operative under program control for executing the following steps:
using a syntax analysis process, compiling an ASN input file, describing rules of said ASN Standard into an ASN Data Repository comprising a data structure of said ASN input file;
generating a file of general script lexemes using a lexical analysis of a general script source containing rules for creating information in said ASN Data Repository;
using a syntax analyzer, analyzing said general script lexemes to create a file of general script precompiled functions;
using a general script Executor to act upon entries in said ASN Data Repository with said general script precompiled functions to produce an output file; and
using an Application Programmer input file describing requirements for messages for a particular application, and said output file as inputs to a CASE tool to generate outputs for use by a compiler for a particular processor.
5. The apparatus of claim 4 , wherein said data processing system is further operative under program control to execute the step of:
compiling code for said particular processor using said output of said CASE tool in said compiler for said particular processor.
6. The apparatus of claim 4 , wherein said data processing system is further operative under program control for executing the step of compiling said ASN input file into said ASN Data Repository by executing the steps of:
generating said ASN input file through a lexical analysis of ASN source statements to generate a file of ASN lexemes; and
using a syntax analyzer to compile said ASN lexemes into said ASN Data Repository.