fix

posterbuilder/convert.py

@@ -609,24 +609,10 @@ def figures_to_latex(fig_list, out_tex_path: pathlib.Path, images_parent: pathli
 
 
 def strip_stray_t(tex: str) -> str:
-    _T_ALLOWED_PREFIXES = (
-    # 常见 text 系
-    "ext", "extbf", "extit", "exttt", "extsc", "extsf",
-    "extcolor", "extsuperscript", "extsubscript",
-    "extwidth", "extheight",
-    # beamer/tikz 等
-    "itle", "hanks", "ikz", "ikzpicture", "ikzset", "ikzstyle",
-    # 表格/书签等
-    "ab", "abular", "able", "abularx", "abcolsep",
-    # 其他常见
-    "iny", "ttfamily", "oday", "he", "ypeout",
-    "oprule", "midrule", "bottomrule",  # booktabs
-    "ocs", "ocsection", "ocsubsection"
-    )
-    _T_NONCOMMAND_RE = re.compile(
-        r'\\([tT])(?!(' + '|'.join(_T_ALLOWED_PREFIXES) + r')|\{)'
-    )
-    return _T_NONCOMMAND_RE.sub(lambda m: m.group(1), tex)
+    _T_BEFORE_DOLLAR_RE = re.compile(r'\\t(?=\$)')   
+    if not tex:
+        return tex
+    return _T_BEFORE_DOLLAR_RE.sub('', tex)
 
 # ===================== 主流程 =====================
 def build():
@@ -674,7 +660,7 @@ def build():
     cleaned_tex = cleaned_tex.replace(r"\\\\", r"\\")  # 避免双转义干扰
     cleaned_tex = cleaned_tex.replace(r"\\", "\\")      # 最终将 \\ → \
     cleaned_tex = cleaned_tex.replace(r"\t\t", "\\t")
-    # cleaned_tex = strip_stray_t(cleaned_tex)
+    cleaned_tex = strip_stray_t(cleaned_tex)
 
     OUTPUT_PATH.write_text(cleaned_tex, encoding="utf-8")
     print(f"✅ Wrote: {OUTPUT_PATH.relative_to(ROOT_DIR)}")