- Add\Rework UI - Add Split Table and Listing - Add Support Customazeble schems
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Igor20264
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"""Post-conversion heuristic: half-empty pages inside an unfinished section.
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Requires Windows + Microsoft Word + pywin32. Findings are ALWAYS heuristic —
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false positives are expected (large figures, end of subsection, odd breaks).
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Never treat as --strict errors.
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"""
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from __future__ import annotations
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from dataclasses import dataclass
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# Unused fraction of the text area below the last content on the page.
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EMPTY_FRACTION_THRESHOLD = 0.40
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FRONT_MATTER_HINTS = (
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"СОДЕРЖАНИЕ",
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"ТИТУЛ",
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"ЗАДАНИЕ",
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)
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@dataclass
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class PageMetric:
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"""Synthetic / measured metrics for one page (CI-friendly)."""
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page_index: int # 1-based
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content_bottom_frac: float # 0..1, how far down the text area content reaches
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section_title: str
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next_section_title: str | None
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is_landscape: bool = False
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is_last_doc_page: bool = False
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mostly_figure_or_table: bool = False
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@dataclass
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class PageFillIssue:
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page_index: int
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message: str
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severity: str = "heuristic"
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def evaluate_page_fill(
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pages: list[PageMetric],
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*,
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empty_threshold: float = EMPTY_FRACTION_THRESHOLD,
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) -> list[PageFillIssue]:
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"""Pure heuristic over page metrics (no Word). Safe for unit tests."""
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issues: list[PageFillIssue] = []
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for i, page in enumerate(pages):
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if page.is_landscape:
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continue
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if page.mostly_figure_or_table:
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continue
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if page.is_last_doc_page:
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continue
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title_u = (page.section_title or "").upper()
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if any(h in title_u for h in FRONT_MATTER_HINTS):
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continue
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# Last page of this section (next page starts a different H1)
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if page.next_section_title and page.next_section_title != page.section_title:
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continue
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empty_frac = 1.0 - page.content_bottom_frac
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if empty_frac <= empty_threshold:
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continue
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# Same section continues on the next page
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if i + 1 >= len(pages):
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continue
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nxt = pages[i + 1]
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if nxt.section_title != page.section_title:
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continue
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issues.append(PageFillIssue(
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page_index=page.page_index,
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message=(
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f"[heuristic] page.fill: на стр. {page.page_index} пустой низ "
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f"~{empty_frac:.0%} полосы, а раздел «{page.section_title}» "
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f"продолжается на следующей странице. "
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f"Проверка эвристическая — возможны ложные срабатывания "
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f"(крупный рисунок, конец пункта, нестандартный разрыв)."
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),
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))
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return issues
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def check_docx_page_fill(path: str) -> tuple[list[PageFillIssue], str]:
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"""
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Open DOCX in Word, repaginate, collect metrics, evaluate.
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Returns (issues, status_message). On missing Word/pywin32 returns ([], reason).
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"""
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try:
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import win32com.client # type: ignore
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except ImportError:
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return [], (
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"Проверка вёрстки пропущена: нужен пакет pywin32 "
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"(pip install pywin32) и Microsoft Word."
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)
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word = None
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doc = None
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try:
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word = win32com.client.DispatchEx("Word.Application")
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word.Visible = False
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word.DisplayAlerts = 0
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abs_path = str(path)
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doc = word.Documents.Open(abs_path, ReadOnly=True)
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doc.Repaginate()
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pages_metrics: list[PageMetric] = []
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page_count = int(doc.ComputeStatistics(2)) # wdStatisticPages
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for page_no in range(1, page_count + 1):
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try:
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metric = _measure_page(doc, page_no, page_count)
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except Exception:
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continue
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if metric is not None:
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pages_metrics.append(metric)
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issues = evaluate_page_fill(pages_metrics)
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if not issues:
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return [], (
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"Проверка вёрстки (Word): замечаний по полупустым страницам нет "
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"(эвристика; возможны пропуски)."
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)
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return issues, (
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f"Проверка вёрстки (Word): найдено замечаний — {len(issues)} "
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f"(все эвристические, могут быть ложными)."
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)
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except Exception as exc:
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return [], f"Проверка вёрстки пропущена: не удалось открыть Word ({exc})."
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finally:
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try:
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if doc is not None:
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doc.Close(False)
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except Exception:
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pass
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try:
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if word is not None:
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word.Quit()
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except Exception:
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pass
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def _measure_page(doc, page_no: int, page_count: int) -> PageMetric | None:
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"""Best-effort measurement via Word COM selection / page setup."""
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selection = doc.Application.Selection
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selection.GoTo(What=1, Which=1, Count=page_no) # wdGoToPage, wdGoToAbsolute
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section = selection.Sections(1)
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ps = section.PageSetup
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is_landscape = bool(int(ps.Orientation) == 1) # wdOrientLandscape
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page_h = float(ps.PageHeight)
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top = float(ps.TopMargin)
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bottom = float(ps.BottomMargin)
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text_h = max(page_h - top - bottom, 1.0)
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start = int(selection.Start)
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if page_no < page_count:
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selection.GoTo(What=1, Which=1, Count=page_no + 1)
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end = int(selection.Start) - 1
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else:
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end = int(doc.Content.End)
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if end < start:
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end = start
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rng = doc.Range(start, end)
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try:
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# wdVerticalPositionRelativeToPage = 6
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vpos = float(rng.Information(6))
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content_bottom = max(0.0, min(1.0, (vpos - top) / text_h))
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except Exception:
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content_bottom = 1.0
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section_title = _heading_near(doc, start)
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next_title = None
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if page_no < page_count:
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try:
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selection.GoTo(What=1, Which=1, Count=page_no + 1)
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next_title = _heading_near(doc, int(selection.Start))
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except Exception:
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next_title = None
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mostly_object = False
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try:
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text_len = len((rng.Text or "").strip())
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if rng.Tables.Count >= 1 and text_len < 80:
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mostly_object = True
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if rng.InlineShapes.Count >= 1 and text_len < 80:
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mostly_object = True
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except Exception:
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pass
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return PageMetric(
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page_index=page_no,
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content_bottom_frac=content_bottom,
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section_title=section_title or "",
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next_section_title=next_title,
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is_landscape=is_landscape,
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is_last_doc_page=(page_no == page_count),
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mostly_figure_or_table=mostly_object,
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)
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def _heading_near(doc, pos: int) -> str:
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"""Walk backwards for nearest Heading 1 style paragraph."""
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try:
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p = doc.Range(pos, pos).Paragraphs(1)
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for _ in range(80):
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style = str(p.Style)
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if "Heading 1" in style or "Заголовок 1" in style:
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return (p.Range.Text or "").strip().replace("\r", "")
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if p.Range.Start <= 1:
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break
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p = p.Previous()
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if p is None:
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break
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except Exception:
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pass
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return ""
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def format_page_fill_report(issues: list[PageFillIssue], status: str) -> str:
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lines = [status]
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for i in issues:
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lines.append(f" [{i.severity}] page:{i.page_index}: {i.message}")
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return "\n".join(lines)
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