ext:�ļ��ĺ�׺�� langTagName:���Ե�tag���� lexerId �﷨��id��������û��Զ��壬���Ȼ��L_USER_TXT,L_USER_CPP,L_USER_HTML,L_USER_JS,L_USER_XML, L_USER_INI �е�һ����

Attach an existing document to this one.

Return the auto-indentation style.

Default implementation to return the case sensitivity of the language.

Convert a Qt character to the Scintilla equivalent. Return zero if it is invalid.

status : true 表示存在， false 表示不存在 tag，只有在用户自定义语法是，才需要给出。内部自带的语法不需要给出 isOrigin:是否原生lexer，即不读取用户修改过的配置风格

根据当前路径，得到交互文件的名称

获取内容。是uft8格式的。所有字符都以utf8编码

Insert the given text at the given line and offset.

XXX Identical to Perl, put in common area

get a default collating element:

Set the end-of-line visibility.

Set if else can be folded.

Annotate a line.

Set the whitespace visibility.

private access functions:

大文本不能显示行号，其实显示的是每一行的地址。 因为要跳转，所以没法实时计算当前位置所在的行号

Return the current text.

Write the text to a QIODevice.

* Search of a text in the document, in the given range. * @return The position of the found text, -1 if not found. */

True if can follow ch down to the end with possibly trailing whitespace

Get the value of the "byte count" field, it counts the number of bytes in the "data" field.

Red, green and blue values as bytes 0..255

Get the value of the "byte count" field, it counts the number of bytes in the subsequent fields ("address", "data" and "checksum" fields).

Give the largest width of the set.

Does the previous line have more than spaces and tabs?