Summary:
Change NumberParse.parse to return not just the parsed number but also information it gathered along the way about how the input string was formatted.
Use this in the new NumberParse.guessOptions to guess the actual widget options based on an array of strings.
Use NumberParse.guessOptions in TypeConversion (for when a user explicitly chooses to change type) and in ValueGuesser (for guesses about strings entered into empty columns).
Test Plan: Adds unit tests for NumberParse and ValueGuesser and updates the TypeChange2 nbrowser test.
Reviewers: georgegevoian
Reviewed By: georgegevoian
Differential Revision: https://phab.getgrist.com/D3294
Summary:
Added NumberParse.ts, counterpart of NumberFormat.ts.
Contains generic functionality for parsing numbers formatted by Intl.NumberFormat, not tied to documents or anything.
This doesn't change any actual behaviour, applying this parsing when pasting/typing in numeric columns will be a separate diff.
Test Plan: New file with extensive unit tests.
Reviewers: dsagal
Reviewed By: dsagal
Subscribers: jarek
Differential Revision: https://phab.getgrist.com/D3078
