Automatically remove incompatible package(s)

Package axessibility is incompatible with xeCJK/xeLatex, causes compilation failure on the website. Removing it from tex file should fix that

mathtranslate/process_latex.py

@@ -490,3 +490,12 @@ def replace_function(match):
         else:
             return match.group(0)
     return pattern.sub(replace_function, latex)
+
+def remove_incompatible_packages(text):
+    incompatible_list=['axessibility']
+    #axessibility is incompatible with xeCJK and can be removed savely
+    #maybe more will be added
+    for package in incompatible_list:
+        pattern = re.compile(r'\\usepackage(\[[A-Za-z]*?\])?\{'+package+r'\}') 
+        text = re.sub(pattern,'',text)
+    return text

mathtranslate/translate.py

@@ -226,6 +226,7 @@ def translate_full_latex(self, latex_original, make_complete=True, nocache=False
         if self.complete:
             print('It is a full latex document')
             latex_original, tex_begin, tex_end = process_latex.split_latex_document(latex_original, r'\begin{document}', r'\end{document}')
+            tex_begin = process_latex.remove_incompatible_packages(tex_begin)
             tex_begin = process_latex.remove_blank_lines(tex_begin)
             tex_begin = process_latex.insert_macro(tex_begin, '\\usepackage{xeCJK}\n\\usepackage{amsmath}')
         else: