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https://github.com/getpaseo/paseo.git
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Mohamed Boudra
0a549945b5
Shape rows in native Canvas and CoreText, then place clusters on xterm columns so fallback font advances cannot separate text from its cursor. Wait for measured dimensions before attachment and repaint overhanging ink with affected rows. Use Android platform ICU to avoid bundling approximately 14 MB of data; retain and document the Android 10 conjunct limitation.
60 lines
2.6 KiB
JavaScript
60 lines
2.6 KiB
JavaScript
// Terminal output covering the scripts and styles the native renderer must place on the grid.
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// Each entry is one line of output; `ruler` is drawn with full blocks so the harness can read
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// the grid origin and cell width from pixels, independent of the renderer under test.
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const ESC = "\u001b";
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const sgr = (codes, text) => `${ESC}[${codes}m${text}${ESC}[0m`;
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export const RULER_CELLS = 20;
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/** A foreground no theme uses, so its pixels can be told apart from default text. */
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export const ACCENT = [255, 64, 160];
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const accent = (text) => sgr(`38;2;${ACCENT.join(";")}`, text);
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/**
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* The `select` line starts with a conjunct whose first cell the harness selects on its own. Its
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* second cell uses the accent, which no theme's selection foreground matches.
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*/
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export const SELECT_LINE = "select";
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export function fixtureLines(columns) {
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const wrapSyllables = Math.ceil(columns / 2) + 6;
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return [
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{ name: "ruler", text: "█".repeat(RULER_CELLS) },
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{ name: "ascii", text: "ASCII abcdefghij 0123456789 end" },
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{ name: "hangul-mixed", text: "한글 문장 Hello end" },
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{ name: "hangul-color-boundary", text: `안녕하세요${sgr(31, "NEXT")} end` },
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{ name: "hangul-bold-boundary", text: `${sgr(1, "안녕하세요")}NEXT end` },
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{ name: "hangul-decomposed", text: "한글 end" },
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{ name: "cjk", text: "日本語テキスト 中文字符 end" },
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{ name: "combining", text: "é ä ñ x̣̂ end" },
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{ name: "arabic", text: "مرحبا لا 123 abc end" },
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{ name: "devanagari", text: "नमस्ते क्षत्रिय end" },
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{ name: "emoji", text: "👍 ❤️ 👋🏽 👩💻 🇰🇷 end" },
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// One shaped cluster over two cells, colored per cell: the color must follow the cell.
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{ name: "split-color", text: `क्${accent("ष")} ${accent("क्")}ष ल${accent("ا")} end` },
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{ name: SELECT_LINE, text: `क्${accent("ष")} end` },
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{ name: "box", text: "╭──┬──╮ │ab│cd│ ╰──┴──╯ ▀▄▌▐░▒▓ end" },
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{
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name: "styles",
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text: [
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sgr(1, "bold"),
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sgr(3, "italic"),
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sgr(4, "under"),
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sgr(7, "inverse"),
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sgr(42, "bg"),
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sgr(9, "strike"),
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"end",
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].join(" "),
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},
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{ name: "hangul-wrap", text: "가".repeat(wrapSyllables) },
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// The last line has no newline: the shell sleeps with the cursor right after it.
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{ name: "cursor", text: "> 안녕하세요" },
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];
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}
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/** The bytes `cat` writes; the tty turns each newline into CR LF. */
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export function fixtureOutput(columns) {
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return fixtureLines(columns)
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.map((line) => line.text)
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.join("\n");
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}
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