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gridcraft/crates/numfmt/src
Valentin KleinandClaude Sonnet 5.5 55f3004cb2 Numfmt: one built-in format table, fewer allocations rendering numbers and General (#817) (#820)
* Numfmt: one built-in format table, no dead render arms, fewer allocations (#817)

S1: the built-in format table lives only in gridcraft-xlsx (file formats do not
depend on numfmt); numfmt's unused copy and its exports are removed, xlsx gets
tests pinning its lookup rules.
S3: drop the render_number arm that printed what the fallback prints; literal
text is appended to the output instead of built as a String per call.
O3: render_number keeps pieces, text-before and literal replacements in one
buffer (Parts), fill_int writes digits left to right, Section stores the date
flags (sub-second digits, calendar, AM/PM) computed at parse time, render_date
writes into one buffer.
O4: significant_digits formats into a stack buffer; format_general_fit re-rounds
the 15 digits per width into reused strings.

An equality test compares format_value, TEXT() and format_general_fit with
digests recorded from the previous implementation.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

* xlsx test: builtin ids 42 and 44 are written as custom formats like 5-8

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

* numfmt: push_str for short month/day names (clippy)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

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Co-authored-by: Claude Sonnet 5.5 <noreply@anthropic.com>
2026-11-11 08:57:06 +01:00
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