feat: add input abbreviations for heavy angle brackets ❰❱#782
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`h<` → ❰, `h>` → ❱, `h<>` → ❰$CURSOR❱, following the existing `f<`/`f>`/`f<>` pattern for French/single-arrow brackets `‹›`. The "h" prefix matches the Unicode names HEAVY LEFT/RIGHT- POINTING ANGLE BRACKET ORNAMENT (U+2770, U+2771). These characters are used by batteries' `proof_wanted` and `construction_wanted` commands (leanprover-community/batteries#1814) as a bracket syntax for referencing earlier wanted declarations. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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This PR adds input abbreviations for
❰(U+2770, HEAVY LEFT-POINTING ANGLE BRACKET ORNAMENT) and❱(U+2771, HEAVY RIGHT-POINTING ANGLE BRACKET ORNAMENT), following the existing pattern for French/single-arrow brackets (f<,f>,f<>for‹›):\h<→❰\h>→❱\h<>→❰$CURSOR❱The
hprefix matches the "HEAVY" in the Unicode names. The paired form lives next to the existing paired brackets at the top of the file; the singletons live next tof</f>further down.Motivation
Batteries'
proof_wantedandconstruction_wantedcommands (leanprover-community/batteries#1814 and stacked PRs) use❰foo❱as a bracket syntax for referencing earlier wanted declarations. Without an input abbreviation, users have to copy-paste the characters or set up their own — these PRs aren't really usable without a way to type the brackets.🤖 Prepared with Claude Code