32 lines
998 B
TypeScript
32 lines
998 B
TypeScript
export function chunkTextForOutbound(text: string, limit: number): string[] {
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if (!text) {
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return [];
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}
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if (limit <= 0 || text.length <= limit) {
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return [text];
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}
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const chunks: string[] = [];
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let remaining = text;
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while (remaining.length > limit) {
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const window = remaining.slice(0, limit);
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const lastNewline = window.lastIndexOf("\n");
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const lastSpace = window.lastIndexOf(" ");
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let breakIdx = lastNewline > 0 ? lastNewline : lastSpace;
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if (breakIdx <= 0) {
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breakIdx = limit;
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}
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const rawChunk = remaining.slice(0, breakIdx);
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const chunk = rawChunk.trimEnd();
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if (chunk.length > 0) {
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chunks.push(chunk);
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}
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const brokeOnSeparator = breakIdx < remaining.length && /\s/.test(remaining[breakIdx]);
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const nextStart = Math.min(remaining.length, breakIdx + (brokeOnSeparator ? 1 : 0));
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remaining = remaining.slice(nextStart).trimStart();
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}
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if (remaining.length) {
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chunks.push(remaining);
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}
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return chunks;
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}
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