docs: 添加涉密文件自检工具实施计划

UmiOCR-data/py_src/ocr/tbpu/parser_multi_line.py

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+# 排版解析-多栏-单行
+
+from .tbpu import Tbpu
+from .parser_tools.line_preprocessing import linePreprocessing  # 行预处理
+from .parser_tools.gap_tree import GapTree  # 间隙树排序算法
+
+
+class MultiLine(Tbpu):
+    def __init__(self):
+        self.tbpuName = "排版解析-多栏-单行"
+
+        # 构建算法对象，指定包围盒的元素位置
+        self.gtree = GapTree(lambda tb: tb["normalized_bbox"])
+
+    def run(self, textBlocks):
+        textBlocks = linePreprocessing(textBlocks)  # 预处理
+        textBlocks = self.gtree.sort(textBlocks)  # 构建间隙树
+        # 补充行尾间隔符
+        for tb in textBlocks:
+            tb["end"] = "\n"
+            del tb["normalized_bbox"]
+        return textBlocks