Function applyReplacements

packages/arctic/src/patch/index.ts:391–408

(lines: string[], replacements: Array<[number, number, string[]]>)

  }

  function applyReplacements(lines: string[], replacements: Array<[number, number, string[]]>): string[] {
    // Apply replacements in reverse order to avoid index shifting
    const result = [...lines]

    for (let i = replacements.length - 1; i >= 0; i--) {
      const [startIdx, oldLen, newSegment] = replacements[i]

      // Remove old lines
      result.splice(startIdx, oldLen)

      // Insert new lines
      for (let j = 0; j < newSegment.length; j++) {
        result.splice(startIdx + j, 0, newSegment[j])
      }
    }

    return result
  }

  function seekSequence(lines: string[], pattern: string[], startIndex: number): number {
    if (pattern.length === 0) return -1