Sublime Highlighter插件添加java支持

￡神魔★判官ぃ 2022-05-09 05:20 290阅读 0赞

# Sublime Highlighter插件添加java支持 #

Highlighter给复制富文本编码添加了很好的支持，最近使用时发现针对Java语言会出现找不到`Lexer`的错误。

Traceback (most recent call last): File "D:\software\Sublime Text Build 3176 x64\sublime_plugin.py", line 1066, in run_ return self.run(edit, **args) File "D:\software\Sublime Text Build 3176 x64\Data\Packages\SublimeHighlight\SublimeHighlight.py", line 131, in run pygmented = self.highlight(output_type, full) File "D:\software\Sublime Text Build 3176 x64\Data\Packages\SublimeHighlight\SublimeHighlight.py", line 119, in highlight return pygments.highlight(self.code, self.get_lexer(), File "D:\software\Sublime Text Build 3176 x64\Data\Packages\SublimeHighlight\SublimeHighlight.py", line 102, in get_lexer lexer = pygments.lexers.guess_lexer(code) File "D:\software\Sublime Text Build 3176 x64\Data\Packages\pygments\all\pygments\lexers\__init__.py", line 252, in guess_lexer raise ClassNotFound('no lexer matching the text found') pygments.util.ClassNotFound: no lexer matching the text found

发现原作者在查找高亮语法时，通过`guess_lexer_from_syntax`和`pygments.lexers.guess_lexer`，在markdown文本中，  
无法正确的找到`Java`的语法支持，是pygments是有`Java`语法支持的。通过打印`scope_name`，确认markdown文本中是有  
`source.java`的语法高亮。添加`get_lexer_from_scope`，通过`source.java`查找语法高亮。

+    def get_lexer_from_scope(self):
    +        view = self.view
    +        pt = view.sel()[0].a
    +        scope_name = view.scope_name(pt)
    +        for sn in scope_name.split(' '):
    +            if 'source.' in sn:
    +                sourcename = sn[7:]
    +                print("get lexer from scope: %r" % sourcename)
    +                return pygments.lexers.get_lexer_by_name(sourcename)
    +        return 
    
        def get_lexer(self, code=None):
            # ...
            if not lexer:
                lexer = self.guess_lexer_from_syntax()
    +        if not lexer:
    +            lexer = self.get_lexer_from_scope()
    +            print("try get_lexer_from_scope %r" % lexer)
            if not lexer:
                lexer = pygments.lexers.guess_lexer(code)
            # ...