Function append

packages/core/src/tool/read-filesystem.ts:242–261

(input: string)

      let bytes = 0
      let next: number | undefined
      const append = (input: string) => {
        if (line < offset) {
          line++
          return true
        }
        if (lines.length >= limit || bytes >= MAX_READ_BYTES) {
          next = line
          return false
        }
        const text = input.length > MAX_LINE_LENGTH ? input.slice(0, MAX_LINE_LENGTH) + MAX_LINE_SUFFIX : input
        const size = Buffer.byteLength(text, "utf-8") + (lines.length > 0 ? 1 : 0)
        if (bytes + size > MAX_READ_BYTES) {
          next = line
          return false
        }
        lines.push(text)
        bytes += size
        line++
        return true
      }
      const consume = (input: string) => {
        let text = input
        while (true) {