chore: merge blocksuite source code (#9213)

blocksuite/framework/inline/src/utils/inline-range.ts

@@ -0,0 +1,74 @@
+import type { InlineRange } from '../types.js';
+
+export function isMaybeInlineRangeEqual(
+  a: InlineRange | null,
+  b: InlineRange | null
+): boolean {
+  return a === b || (a && b ? isInlineRangeEqual(a, b) : false);
+}
+
+export function isInlineRangeContain(a: InlineRange, b: InlineRange): boolean {
+  return a.index <= b.index && a.index + a.length >= b.index + b.length;
+}
+
+export function isInlineRangeEqual(a: InlineRange, b: InlineRange): boolean {
+  return a.index === b.index && a.length === b.length;
+}
+
+export function isInlineRangeIntersect(
+  a: InlineRange,
+  b: InlineRange
+): boolean {
+  return a.index <= b.index + b.length && a.index + a.length >= b.index;
+}
+
+export function isInlineRangeBefore(a: InlineRange, b: InlineRange): boolean {
+  return a.index + a.length <= b.index;
+}
+
+export function isInlineRangeAfter(a: InlineRange, b: InlineRange): boolean {
+  return a.index >= b.index + b.length;
+}
+
+export function isInlineRangeEdge(
+  index: InlineRange['index'],
+  range: InlineRange
+): boolean {
+  return index === range.index || index === range.index + range.length;
+}
+
+export function isInlineRangeEdgeBefore(
+  index: InlineRange['index'],
+  range: InlineRange
+): boolean {
+  return index === range.index;
+}
+
+export function isInlineRangeEdgeAfter(
+  index: InlineRange['index'],
+  range: InlineRange
+): boolean {
+  return index === range.index + range.length;
+}
+
+export function isPoint(range: InlineRange): boolean {
+  return range.length === 0;
+}
+
+export function mergeInlineRange(a: InlineRange, b: InlineRange): InlineRange {
+  const index = Math.min(a.index, b.index);
+  const length = Math.max(a.index + a.length, b.index + b.length) - index;
+  return { index, length };
+}
+
+export function intersectInlineRange(
+  a: InlineRange,
+  b: InlineRange
+): InlineRange | null {
+  if (!isInlineRangeIntersect(a, b)) {
+    return null;
+  }
+  const index = Math.max(a.index, b.index);
+  const length = Math.min(a.index + a.length, b.index + b.length) - index;
+  return { index, length };
+}