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* Fatal-on-data-error `mlr -x` option [WIP] * arithmetic.go error-reason propagation * more * more * more * renames * doc page * namefix * fix broken test * make dev |
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| mlrcli_parse.go | ||
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| README.md | ||
Logic for parsing the Miller command line.
internal/pkg/climainis the flag-parsing logic for supporting Miller's command-line interface. When you type something likemlr --icsv --ojson put '$sum = $a + $b' then filter '$sum > 1000' myfile.csv, it's the CLI parser which makes it possible for Miller to construct a CSV record-reader, a transformer chain ofputthenfilter, and a JSON record-writer.internal/pkg/clicontains datatypes for the CLI-parser, which was split out to avoid a Go package-import cycle.- I don't use the Go
flagpackage. Theflagpackage is quite fine; Miller's command-line processing is multi-purpose between serving CLI needs per se as well as for manpage/docfile generation, and I found it simplest to roll my own command-line handling here. More importantly, some Miller verbs such assorttake flags more than once --mlr sort -f field1 -n field2 -f field3-- which is not supported by theflagpackage.