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refactor: deduplicate safeSliceEnd into shared export from text-measure

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This commit is contained in:
Yunfei He
2026-05-28 09:55:10 +08:00
parent 2c994314e1
commit 6628dde35e
2 changed files with 7 additions and 19 deletions
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packages/runtime/src/host/text-measure.ts
+6 -5
View File
@@ -37,13 +37,14 @@ export type WrapMode = NonNullable<TextProps["wrap"]>;
* `slice-ansi` can overshoot when a wide character straddles the boundary, so
* we reduce the slice position until the result fits.
*/
function safeSliceEnd(text: string, maxCols: number): string {
export function safeSliceEnd(text: string, maxCols: number): string {
if (maxCols <= 0) return "";
let sliced = sliceAnsi(text, 0, maxCols);
let end = maxCols;
let sliced = sliceAnsi(text, 0, end);
let w = stringWidth(sliced);
while (w > maxCols && maxCols > 0) {
maxCols--;
sliced = sliceAnsi(text, 0, maxCols);
while (w > maxCols && end > 0) {
end--;
sliced = sliceAnsi(text, 0, end);
w = stringWidth(sliced);
}
return sliced;
packages/runtime/src/paint/paint.ts
+1 -14
View File
@@ -19,7 +19,7 @@ import type {
BoxProps,
} from "../host/nodes.ts";
import { createRoot as createIsoRoot } from "../host/nodes.ts";
import { wrapText } from "../host/text-measure.ts";
import { wrapText, safeSliceEnd } from "../host/text-measure.ts";
import {
attachYoga,
detachYoga,
@@ -29,19 +29,6 @@ import {
export type Transformer = (line: string, lineIndex: number) => string;
function safeSliceEnd(text: string, maxCols: number): string {
if (maxCols <= 0) return "";
let end = maxCols;
let sliced = sliceAnsi(text, 0, end);
let w = stringWidth(sliced);
while (w > maxCols && end > 0) {
end--;
sliced = sliceAnsi(text, 0, end);
w = stringWidth(sliced);
}
return sliced;
}
interface ClipRect {
x1: number | undefined;
x2: number | undefined;