feat(latex): 新增 LaTeX 排版系统，从 Markdown 生成 ctexbook

- 新增 officefile/latex/ 目录，包含 main.tex、preamble.tex 及 14 个章节 + 10 个附录 tex 文件 - md→tex 转换流程：pandoc 转换 + _postprocess.py 后处理（去编号、修破折号、清标签） - 修复 5 个 md 源文件的标题层级（H1→H2 降级，统一层级结构） - 配置 VS Code LaTeX Workshop（xelatex + ctexbook 编译链） - 新增 VS Code workspace 和 .gitignore（排除 LaTeX 编译产物） Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-29 12:21:15 +08:00
commit d4665a362e
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+import re, os
+
+outdir = os.path.join(os.path.dirname(__file__), 'chapters')
+counts = {'labels': 0, 'dashes': 0, 'rules': 0, 'chapnum': 0, 'secnum': 0, 'emdashtext': 0}
+
+for fname in sorted(os.listdir(outdir)):
+    if not fname.endswith('.tex') or fname == 'ch13-conclusion.tex':
+        continue
+
+    fpath = os.path.join(outdir, fname)
+    with open(fpath, 'r', encoding='utf-8') as f:
+        content = f.read()
+
+    # 1. Remove Unicode labels like \label{ux7b2c...}
+    label_pattern = re.compile(r'\\label\{[^}]*ux[0-9a-f]+[^}]*\}')
+    matches = label_pattern.findall(content)
+    counts['labels'] += len(matches)
+    content = label_pattern.sub('', content)
+
+    # 2. Fix dashes + strip chapter number prefix (first line)
+    lines = content.split('\n')
+    if lines and lines[0].startswith('\\chapter{'):
+        old_line = lines[0]
+        new_line = old_line.replace('------', '——')
+        new_line = re.sub(r'\\chapter\{第\d+章[：:\s]+', r'\\chapter{', new_line)
+        if new_line != old_line:
+            if '------' in old_line:
+                counts['dashes'] += 1
+            if re.search(r'第\d+章', old_line):
+                counts['chapnum'] += 1
+        lines[0] = new_line
+    content = '\n'.join(lines)
+
+    # 3. Remove decorative rules
+    rule = '\\begin{center}\\rule{0.5\\linewidth}{0.5pt}\\end{center}'
+    count = content.count(rule)
+    counts['rules'] += count
+    content = content.replace(rule + '\n\n', '\n')
+    content = content.replace(rule + '\n', '\n')
+
+    # 4. Fix em-dashes in body text
+    count = content.count('------')
+    counts['emdashtext'] += count
+    content = content.replace('------', '——')
+
+    # 5. Strip numeric prefixes from section/subsection/subsubsection
+    for cmd in ['section', 'subsection', 'subsubsection']:
+        def make_stripper(cmd_name):
+            def strip_num(m):
+                title = m.group(1)
+                new_title = re.sub(r'^\d+\.(\d+(\.\d+)?)?\s*', '', title)
+                if new_title != title:
+                    counts['secnum'] += 1
+                    return '\\' + cmd_name + '{' + new_title + '}'
+                return m.group(0)
+            return strip_num
+        pattern = re.compile(r'\\' + cmd + r'\{([^}]+)\}')
+        content = pattern.sub(make_stripper(cmd), content)
+
+    with open(fpath, 'w', encoding='utf-8') as f:
+        f.write(content)
+
+    print(f'OK {fname}')
+
+print(f'Done: labels={counts["labels"]} dashes={counts["dashes"]} rules={counts["rules"]} chapnum={counts["chapnum"]} secnum={counts["secnum"]} emdash_text={counts["emdashtext"]}')