119 lines
4.5 KiB
Markdown
119 lines
4.5 KiB
Markdown
# Mixed Inherited/Explicit Font Size Fix (Document-Wide)
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## Problem (2026-07-01 生育友好宣传阵地建设协议)
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Source document has **mixed font sizing** in body text:
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- Some runs have explicit `sz=24` (12pt) — e.g., section headings, specific clauses
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- Other runs have **no explicit sz** — inherit from Normal style (`sz=21` / 10.5pt)
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- WB INS runs mostly got `sz=24` correctly, but the mix of explicit + inherited in **original** runs creates visual inconsistency
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Doro complaint: "文字大小不一致，修改" — the rendered result shows mixed sizes.
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## Root Cause
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- `docDefaults` / Normal style = 10.5pt (sz=21)
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- Many body runs (P12+) have explicit sz=24 (from original author or conversion)
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- ~72 original runs have NO explicit sz → inherit 10.5pt → render smaller
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- OnlyOffice renders the mix faithfully → visible inconsistency
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## Diagnosis
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```python
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from docx import Document
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from collections import Counter
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doc = Document('file.docx')
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print(f'Normal style sz: {doc.styles["Normal"].font.size}') # If 133350 EMU = 10.5pt
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sizes = Counter()
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for p in doc.paragraphs[BODY_START:BODY_END]:
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for run in p.runs:
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if run.text.strip():
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sizes[run.font.size.pt if run.font.size else 'inherited'] += 1
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# If both 'inherited' and explicit size (e.g. 12.0) appear → mixed problem
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print(sizes.most_common())
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```
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## Fix Pattern (Full Body Range)
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Unlike the INS-only sweep, this fix targets ALL runs in the body text range:
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```python
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import zipfile, re
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from lxml import etree
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WNS = '{http://schemas.openxmlformats.org/wordprocessingml/2006/main}'
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# 1. Identify body range (skip title/preamble and signature)
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BODY_START = 12 # First body content paragraph index
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BODY_END = 56 # Last body paragraph (exclusive)
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TARGET_SZ = '24' # From explicit runs in body (majority value)
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# 2. Fix ALL runs in body range
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for pidx in range(BODY_START, min(BODY_END, len(paras))):
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p = paras[pidx]
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# Plain runs
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for r in p.findall(f'{WNS}r'):
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t_elem = r.find(f'{WNS}t')
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if t_elem is None or not (t_elem.text or '').strip():
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continue
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rpr = r.find(f'{WNS}rPr')
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if rpr is None:
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rpr = etree.SubElement(r, f'{WNS}rPr')
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r.insert(0, rpr)
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sz = rpr.find(f'{WNS}sz')
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if sz is None:
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sz = etree.SubElement(rpr, f'{WNS}sz')
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sz.set(f'{WNS}val', TARGET_SZ)
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szCs = rpr.find(f'{WNS}szCs')
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if szCs is None:
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szCs = etree.SubElement(rpr, f'{WNS}szCs')
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szCs.set(f'{WNS}val', TARGET_SZ)
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# INS runs
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for ins in p.findall(f'{WNS}ins'):
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for r in ins.findall(f'{WNS}r'):
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# same logic as above
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...
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# DEL runs (for visual consistency in markup view)
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for d in p.findall(f'{WNS}del'):
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for r in d.findall(f'{WNS}r'):
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# same logic
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...
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```
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## Key Distinctions from INS-Only Fix
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| Aspect | INS-only sweep | Full body range fix |
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|--------|---------------|---------------------|
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| Scope | Only WB INS runs | ALL runs (plain + INS + DEL) |
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| Trigger | INS runs missing sz | Doro reports "文字大小不一致" |
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| Root cause | add_clause/tracked_replace gaps | Source document mixed inheritance |
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| Target sz | From neighboring runs | From majority explicit sz in body |
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## When to Apply
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- Doro says "文字大小不一致" on a delivered file
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- `wb-ins-font-verify.py` passes (INS runs OK) but rendered output still shows mixed sizes
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- Diagnostic shows body runs split between `inherited` and explicit sz
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## Important: Don't Change Preamble/Signature
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- Title/header (e.g., P0-P2): larger sz by design (22pt/sz=44) — don't touch
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- Party info (P3-P10): may use different sz — don't touch unless in body range
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- Signature area (P56+): often sz=21 (10.5pt) — don't touch
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- Only fix the **body text range** where sz should be uniform
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## Relationship to 格式保留铁律
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This fix does NOT violate "格式保留铁律" (don't change original formatting) because:
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- The original document's **intent** is uniform 12pt body text (evidenced by majority explicit sz=24)
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- The missing sz is a **formatting omission** (author forgot to set explicit sz on some runs)
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- The fix makes the document render as the original author intended
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- This is different from "changing 仿宋_GB2312 to 仿宋" (that changes the actual format choice)
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BUT: if the original document intentionally uses different sizes in body (e.g., smaller text for notes, larger for headings), don't blindly unify. Check the pattern first.
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