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Indexing of columns #1

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opened 2025-09-14 13:45:02 +01:00 by jonathan · 1 comment
jonathan commented 2025-09-14 13:45:02 +01:00
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What I don't yet have in the new model is a mechanism for indexing into columns. I already discussed this in this Github issue comment. Coming back to that discussion, the thrust of it was that [] should support a second "argument" that indexes into a column and that this necessitates being able to pass some default first argument for selecting all columns. The obvious syntax for this would be an open-ended range, a la ...

To support open-ended ranges, I am going to need a range value type and to extend all of the numeric processing code to support these.

What I don't yet have in the new model is a mechanism for indexing into columns. I already discussed this in [this Github issue comment](https://github.com/jonathanhogg/flitter/issues/16#issuecomment-1785730374). Coming back to that discussion, the thrust of it was that `[]` should support a second "argument" that indexes into a column and that this necessitates being able to pass some default first argument for selecting all columns. The obvious syntax for this would be an open-ended range, a la `..`. To support open-ended ranges, I am going to need a range value type and to extend all of the numeric processing code to support these.
jonathan commented 2025-09-15 22:07:28 +01:00
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Range value types added as of 52d9b1540c. I need to work on the ternary form of slicing next…

Range value types added as of 52d9b1540c. I need to work on the ternary form of slicing next…
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