Back in the mini and mainframe days of the 80s and 90s, I co-designed a commercial 4GL and wrote its language translator; it generated structured COBOL-85 with support for various TP monitors like Tuxedo as well as several dialects of embedded SQL. From time to time, some of that knowledge comes in handy. One of my comp.compilers newsgroup posts from that time (there weren't many) persists in the archives.
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