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PDF Table Parsing in Mandarin
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=== 2. 章節辨識需要保留跨頁狀態 === PDF 文件中的章節、子章節與表格分類資訊,不一定會在每一頁重複出現。因此,解析器需要保留目前的 <code>section</code>、<code>subsection</code> 或其他文件層級的脈絡,並在後續頁面沿用。 常見情境包括: * 接續頁可能只有表格內容,沒有重複顯示章節標題。 * 目錄、摘要或說明頁可能同時出現多個章節名稱。如果解析器只檢查頁面是否包含特定關鍵字,就可能誤判頁面所屬章節。 * 章節標題可能因版面差異而使用不同標點或間距,例如全形或半形括號、頓號、冒號、全形句點或多餘空白。 * 切換章節、子章節或表格類型時,必須清除上一個表格沿用的狀態,避免將資料錯誤帶入下一個區塊。 建議結合文字位置、標題樣式與上下文狀態來判斷章節,而非只依賴整頁的關鍵字比對。
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