Struct Buffer 

struct Buffer {

    a: Option<String>,
    b: Option<String>,
    p: Option<String>,
    o: Option<String>,
    q: Option<String>,
    d: Option<String>,
    rm: Option<String>,
    text_: Option<String>,
    r: Option<String>,
    rd: Option<String>,
    rq: Option<String>,
    rdt: Option<String>,
    rqt: Option<String>,
    d_type: Option<String>,
    sb: bool,
    begins_with_bond: bool,
    parenthesis_level: i32,
}

状态机缓冲区（对应 TS 的动态 buffer 对象）。

Fields

a: Option<String>

b: Option<String>

p: Option<String>

o: Option<String>

q: Option<String>

d: Option<String>

rm: Option<String>

text_: Option<String>

r: Option<String>

rd: Option<String>

rq: Option<String>

rdt: Option<String>

rqt: Option<String>

d_type: Option<String>

sb: bool

begins_with_bond: bool

parenthesis_level: i32

Implementations

impl Buffer

fn clear(&mut self, keep: bool)

清空内容字段。keep 为真时保留 parenthesis_level 与 begins_with_bond （对应 ce 的 output：delete buffer[p] 跳过这两项）。

Trait Implementations

impl Clone for Buffer

fn clone(&self) -> Buffer

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Default for Buffer

fn default() -> Buffer

Returns the “default value” for a type.