Enum ParseErrorKind 

#[non_exhaustive]
pub enum ParseErrorKind {
    Empty,
    UnexpectedChar(char),
    UnexpectedEnd,
    UnknownElement(String),
    BadBracketAtom(&'static str),
    UnbalancedParen,
    EmptyBranch,
    UnclosedRingBond(u32),
    RingBondToSelf(u32),
    DuplicateRingBond(u32),
    ConflictingRingBondOrder(u32),
    DanglingBond,
    NumberOverflow,
    StereoPermOutOfRange {
        geometry: &'static str,
        got: u32,
        max: u32,
    },
}

解析失败的原因。

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Empty

空输入

UnexpectedChar(char)

出现了不该出现的字符

UnexpectedEnd

输入提前结束(如方括号未闭合)

UnknownElement(String)

元素符号无法识别

BadBracketAtom(&'static str)

方括号原子语法错误

UnbalancedParen

分支括号不匹配

EmptyBranch

分支为空,如 C()

UnclosedRingBond(u32)

环闭合标号始终未配对

RingBondToSelf(u32)

环闭合两端是同一个原子,如 C11

DuplicateRingBond(u32)

同一对原子间重复的环闭合键

ConflictingRingBondOrder(u32)

环闭合两端指定了互相冲突的键级

DanglingBond

键符号后面没有原子

NumberOverflow

数字超出可表示范围

StereoPermOutOfRange

立体标记的排列序号超出该几何的取值范围,如 @TB21

Fields

geometry: &'static str

几何的书写形式(TH / AL / SP / TB / OH)

got: u32

写出来的序号

max: u32

该几何允许的最大序号

Trait Implementations

impl Clone for ParseErrorKind

fn clone(&self) -> ParseErrorKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParseErrorKind

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for ParseErrorKind

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for ParseErrorKind

impl PartialEq for ParseErrorKind

fn eq(&self, other: &ParseErrorKind) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for ParseErrorKind