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* Add named profile sections to .mlrrc, selected via --profile / -P (#358) .mlrrc files may now contain INI-style named sections ("profiles"): # Global settings, applied always: icsv [j] ojson jvstack [tsvout] otsv Lines before any section header are global settings, applied always, so existing .mlrrc files behave exactly as before. The new main flag --profile {name} (alias -P {name}) applies the settings from the [name] section after the global settings; without it, sections are ignored entirely (their lines aren't even parsed). It's a fatal error if a requested profile has no matching section in any .mlrrc file processed, if no .mlrrc file was found at all, or if --profile is combined with --norc or MLRRC=__none__. Also fixes the regression-tester to restore per-case environment variables to their prior values after each case, rather than setting them to the empty string -- needed so cases pointing MLRRC at a test file don't clobber the suite-wide MLRRC=__none__ guard. Includes unit tests, regression-test cases, and doc/man-page updates. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * Reject --profile / -P within .mlrrc files (#358) Per maintainer feedback on the PR: profiles are selected on the mlr command line, not from within a .mlrrc file, so --profile / -P inside a .mlrrc file is now a parse error -- the same way --prepipe is rejected there -- rather than being silently ignored. Adds a unit test, a should-fail regression case, and a docs bullet. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> --------- Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
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MLRRC=test/input/mlrrc-with-profiles
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