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PDP-10 / its

Incompatible Timesharing System
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SYS1; TS FINIT #1265

Open eswenson1 opened 6 years ago

eswenson1 commented 6 years ago

Not sure what it does nor where the source is, but ES/PI has it. It seems to take JCL and without it, the first thing is does is renames a file \;_^RSV > to \;_^RSV SAVE. Not finding that file, it exits. But if there does exist such a file, it invokes EMACS on that file (after having renamed it). So it appears to edit the default file (of JCL-specified file) after having made a backup. It doesn't edit the file as XXX >, but rather XXX \ where \ is the latest version (>). Thus, it allows you to edit the latest version of file without, when you save, creating a new version, but still having a backup of the one you edit.

Or something like that. I just did a little debugging to see what it would do.

Actually, when I exited emacs, there was no _^RSV SAVE file, so perhaps this is deleted after emacs is exited.

My guess is this is kind of a "create me a file" program, which launches emacs on the specified file. Not sure what this buys you over just invoking emacs with jcl, but maybe it is the version handling.

larsbrinkhoff commented 6 years ago

Maybe .TECO.; FINIT 15?

larsbrinkhoff commented 5 years ago

It is FINIT 15, which is a short MIDAS file. There's a clue:


;INITS TECO ^R-TYPE SECRETARY SAVE FILES