IBM provides standard POSIX compliant regular expression functions that are available both for classic z/OS and UNIX. Similarly, such services are available in all POSIX compliant Linux implementations. I gave developed a set of COPYBOOKS that provide standard API between COBOL and those services. My demo program compiles on IBM Enterprise COBOL 5.1 and demonstrates the use under classic z/OS. I attempted to create similar copybooks to use with GNU COBOL under Linux, but there appears to be a bug in GNU COBOL call sequence. The GNU COBOL team is aware about the situation and will try to fix the issue. The package is available on CBTTAPE, file 928 as well as on my website (zaconsultants.net) Ze'ev Atlas
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