Enum Node 

pub enum Node<'arena> {
    Number(&'arena str),
    IdentifierChar(char, LetterAttr),
    StretchableOp(StretchableOp, StretchMode, Option<OpAttr>),
    Operator {
        op: MathMLOperator,
        attr: Option<OpAttr>,
        left: Option<MathSpacing>,
        right: Option<MathSpacing>,
    },
    PseudoOp {
        attr: Option<OpAttr>,
        left: Option<MathSpacing>,
        right: Option<MathSpacing>,
        name: &'arena str,
    },
    IdentifierStr(&'arena str),
    Space(Length),
    Subscript {
        target: &'arena Node<'arena>,
        symbol: &'arena Node<'arena>,
    },
    Superscript {
        target: &'arena Node<'arena>,
        symbol: &'arena Node<'arena>,
    },
    SubSup {
        target: &'arena Node<'arena>,
        sub: &'arena Node<'arena>,
        sup: &'arena Node<'arena>,
    },
    OverOp(MathMLOperator, Option<OpAttr>, &'arena Node<'arena>),
    UnderOp(MathMLOperator, &'arena Node<'arena>),
    Overset {
        symbol: &'arena Node<'arena>,
        target: &'arena Node<'arena>,
    },
    Underset {
        symbol: &'arena Node<'arena>,
        target: &'arena Node<'arena>,
    },
    UnderOver {
        target: &'arena Node<'arena>,
        under: &'arena Node<'arena>,
        over: &'arena Node<'arena>,
    },
    Sqrt(&'arena Node<'arena>),
    Root(&'arena Node<'arena>, &'arena Node<'arena>),
    Frac {
        num: &'arena Node<'arena>,
        denom: &'arena Node<'arena>,
        lt_value: LengthValue,
        lt_unit: LengthUnit,
        attr: Option<FracAttr>,
    },
    Row {
        nodes: &'arena [&'arena Node<'arena>],
        attr: Option<RowAttr>,
    },
    Fenced {
        style: Option<Style>,
        open: Option<StretchableOp>,
        close: Option<StretchableOp>,
        content: &'arena Node<'arena>,
    },
    SizedParen(Size, StretchableOp),
    Text(Option<HtmlTextStyle>, &'arena str),
    Table {
        align: Alignment,
        style: Option<Style>,
        content: &'arena [&'arena Node<'arena>],
    },
    EquationArray {
        align: Alignment,
        last_equation_num: Option<NonZeroU16>,
        content: &'arena [&'arena Node<'arena>],
    },
    MultLine {
        num_rows: NonZeroU16,
        last_equation_num: Option<NonZeroU16>,
        content: &'arena [&'arena Node<'arena>],
    },
    Array {
        style: Option<Style>,
        array_spec: &'arena ArraySpec<'arena>,
        content: &'arena [&'arena Node<'arena>],
    },
    ColumnSeparator,
    RowSeparator(Option<NonZeroU16>),
    Enclose {
        content: &'arena Node<'arena>,
        notation: Notation,
    },
    Slashed(&'arena Node<'arena>),
    Multiscript {
        base: &'arena Node<'arena>,
        sub: Option<&'arena Node<'arena>>,
        sup: Option<&'arena Node<'arena>>,
    },
    HardcodedMathML(&'static str),
    Dummy,
}

AST node

Variants

Number(&'arena str)

<mn>...</mn>

IdentifierChar(char, LetterAttr)

<mi>...</mi> for a single character.

StretchableOp(StretchableOp, StretchMode, Option<OpAttr>)

Operator

<mo>...</mo> for a single character.

Fields

op: MathMLOperator

attr: Option<OpAttr>

left: Option<MathSpacing>

right: Option<MathSpacing>

PseudoOp

<mo>...</mo> for a string.

Fields

attr: Option<OpAttr>

left: Option<MathSpacing>

right: Option<MathSpacing>

name: &'arena str

IdentifierStr(&'arena str)

<mi>...</mi> for a string.

Space(Length)

<mspace width="..."/>

Subscript

<msub>...</msub>

Fields

target: &'arena Node<'arena>

symbol: &'arena Node<'arena>

Superscript

<msup>...</msup>

Fields

target: &'arena Node<'arena>

symbol: &'arena Node<'arena>

SubSup

<msubsup>...</msubsup>

Fields

target: &'arena Node<'arena>

sub: &'arena Node<'arena>

sup: &'arena Node<'arena>

OverOp(MathMLOperator, Option<OpAttr>, &'arena Node<'arena>)

<mover accent="true">...</mover>

UnderOp(MathMLOperator, &'arena Node<'arena>)

<munder accent="true">...</munder>

Overset

<mover>...</mover>

Fields

symbol: &'arena Node<'arena>

target: &'arena Node<'arena>

Underset

<munder>...</munder>

Fields

symbol: &'arena Node<'arena>

target: &'arena Node<'arena>

UnderOver

<munderover>...</munderover>

Fields

target: &'arena Node<'arena>

under: &'arena Node<'arena>

over: &'arena Node<'arena>

Sqrt(&'arena Node<'arena>)

<msqrt>...</msqrt>

Root(&'arena Node<'arena>, &'arena Node<'arena>)

<mroot>...</mroot>

Frac

<mfrac>...</mfrac>

Fields

num: &'arena Node<'arena>

Numerator

denom: &'arena Node<'arena>

Denominator

lt_value: LengthValue

Line thickness

lt_unit: LengthUnit

attr: Option<FracAttr>

Row

<mrow>...</mrow>

Fields

nodes: &'arena [&'arena Node<'arena>]

attr: Option<RowAttr>

Fenced

Fields

style: Option<Style>

open: Option<StretchableOp>

close: Option<StretchableOp>

content: &'arena Node<'arena>

SizedParen(Size, StretchableOp)

Text(Option<HtmlTextStyle>, &'arena str)

<mtext>...</mtext>

Table

<mtable>...</mtable> for matrices and similar constructs

Fields

align: Alignment

style: Option<Style>

content: &'arena [&'arena Node<'arena>]

EquationArray

<mtable>...</mtable> for equation arrays like the align environment

Fields

align: Alignment

last_equation_num: Option<NonZeroU16>

content: &'arena [&'arena Node<'arena>]

MultLine

<mtable>...</mtable> for the multline environment

Fields

num_rows: NonZeroU16

last_equation_num: Option<NonZeroU16>

content: &'arena [&'arena Node<'arena>]

Array

<mtable>...</mtable> for arrays

Fields

style: Option<Style>

array_spec: &'arena ArraySpec<'arena>

content: &'arena [&'arena Node<'arena>]

ColumnSeparator

<mtd>...</mtd>

RowSeparator(Option<NonZeroU16>)

<mtr>...</mtr>

Enclose

…

Fields

content: &'arena Node<'arena>

notation: Notation

Slashed(&'arena Node<'arena>)

Multiscript

Fields

base: &'arena Node<'arena>

sub: Option<&'arena Node<'arena>>

sup: Option<&'arena Node<'arena>>

HardcodedMathML(&'static str)

Dummy

This node is used when the parser needs to return a node, but does not want to emit anything.

Implementations

impl Node<'_>

pub fn emit(&self, s: &mut String, base_indent: usize) -> Result

Trait Implementations

impl<'arena> Debug for Node<'arena>

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

Formats the value using the given formatter.