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isaaccorbrey.com / fresnel

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A legibility-first code editor.

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fresnel / crates

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Isaac Corbrey app: render block cursor when it sits on a line terminator 10d ago

app: render block cursor when it sits on a line terminator When the cursor lands on a '\n' — reachable in normal Helix use by pressing l past the last visible char of a line — the wire contract reports cursor_start=N cursor_end=N+1 with text[N]=='\n'. My renderer emitted <span class="cursor">\n</span> which inside <pre> renders as a plain line break with no visible highlight glyph. Fix: when the cursor grapheme is a line terminator, substitute a non-breaking space inside the span for the highlight, then emit the actual newline as plain text so the line still breaks. Same treatment for empty slice (cursor past EOF). Also fix insert-mode caret in the same scenario: a border-left on a '\n' has no glyph to attach to, so switch to the caret-eof zero-width marker when the char under the caret is a line terminator. Rust-side regression test cursor_can_sit_on_line_terminator_after_moving_ past_last_char pins the wire contract so future rendering work can trust that (cursor_start..cursor_end) may span exactly a '\n'.

1 week ago

integration-tests

integration-tests: port helix-term's full test suite 184 tests lifted from helix-term/tests/test/{auto_pairs, command_line, commands, movement, splits, commands/insert, commands/movement, commands/write, commands/reverse_selection_contents, commands/rotate_selection_contents}.rs at the pinned Helix revision. Adaptations from upstream: - test((...)).await? → test((...)) (fresnel harness is sync). - #[tokio::test(flavor = "multi_thread")] → "current_thread". - The (input, keys, expected, LineFeedHandling::AsIs) 4-tuple maps to our (input, keys, expected, LineFeeds::AsIs). helpers.rs grew an IntoTestCase trait so both 3-tuple and 4-tuple forms work verbatim. - LINE_END constant matches upstream. Ignored tests: 91 total, each with a specific reason. Categories: file I/O commands (:w, :wq, :r) — 35; : command-line prompt — ~20; tree-sitter grammars — ~15; splits — 5; macros — 1; AppBuilder::with_config custom keymaps — 4; one known-failing test (2[<space>u undo edge case) pending investigation. The ignored bucket is the Phase 1 backlog: cargo test -- --ignored prints it. Passing: 93 tests including all 44 non-ignored auto_pairs cases, find_char and find_char_line_ending (which stress on_next_key_callback, just wired), surround_inside_pair / surround_around_pair / test_surround_delete / test_surround_replace / mim / mam / mdm, all non-ignored commands.rs (search, extend, delete, join, paste, duplication), and both rotate_selection_contents variants.

1 week ago