@ -1,55 +1,65 @@
export const EQUATION _REGEXP = /^(\\\[.*?\\\]|\\\(.*?\\\))$/ ;
export const defaultConfig = {
engine : 'mathjax' ,
outputType : 'script' ,
forceOutputType : false
} ;
export function renderEquation ( equation , element , engine = 'katex' , display = false ) {
if ( ! element ) {
return ;
export function getSelectedMathModelWidget ( selection ) {
const selectedElement = selection . getSelectedElement ( ) ;
if ( selectedElement && selectedElement . is ( 'mathtex' ) ) {
return selectedElement ;
}
/* eslint-disable */
return null ;
}
export function renderEquation ( equation , element , engine = 'katex' , display = false ) {
if ( engine === 'mathjax' && typeof MathJax !== 'undefined' ) {
const version = MathJax . version ;
// If major version is 3
if ( isMathJaxVersion3 ( version ) ) {
const options = MathJax . getMetricsFor ( element ) ;
if ( isMathJaxVersion3 ( MathJax . version ) ) {
const options = MathJax . getMetricsFor ( element , display ) ;
let promiseFunction = undefined ;
if ( typeof MathJax . tex2chtmlPromise !== 'undefined' ) {
promiseFunction = MathJax . tex2chtmlPromise ;
} else if ( typeof MathJax . tex2svgPromise !== 'undefined' ) {
promiseFunction = MathJax . tex2svgPromise ;
}
MathJax . texReset ( ) ;
MathJax . tex2chtmlPromise ( equation , options ) . then ( node => {
if ( element . firstChild ) {
element . firstChild . replaceWith ( node ) ;
} else {
element . appendChild ( node ) ;
}
MathJax . startup . document . clear ( ) ;
MathJax . startup . document . updateDocument ( ) ;
} ) ;
if ( typeof promiseFunction !== 'undefined' ) {
promiseFunction ( equation , options ) . then ( node => {
if ( element . firstChild ) {
element . firstChild . replaceWith ( node ) ;
} else {
element . appendChild ( node ) ;
}
MathJax . startup . document . clear ( ) ;
MathJax . startup . document . updateDocument ( ) ;
} ) ;
}
} else {
// Fixme: MathJax typesetting cause occasionally math processing error without timeout
// Fixme: MathJax typesetting cause occasionally math processing error without asynchronous call
// eslint-disable-next-line
setTimeout ( ( ) => {
if ( display ) {
element . innerHTML = '\\[' + equation + '\\]' ;
} else {
element . innerHTML = '\\(' + equation + '\\)' ;
}
MathJax . Hub . Queue ( [ 'Typeset' , MathJax . Hub , element ] ) ;
} , 50 ) ;
MathJax . Hub . Queue ( [ 'Typeset' , MathJax . Hub , element ] ) ; // eslint-disable-line
} ) ;
}
} else if ( engine === 'katex' && typeof katex !== 'undefined' ) {
katex . render ( equation , element , {
katex . render ( equation , element , {
throwOnError : false ,
displayMode : display
} ) ;
} ) ;
} else if ( typeof engine === 'function' ) {
engine ( equation , element , display ) ;
} else {
element . innerHTML = equation ;
// eslint-disable-next-line
console . warn ( ` math-tex-typesetting-missing: Missing the mathematical typesetting engine ( ${ engine } ) for tex. ` ) ;
}
/* eslint-enable */
}
// Simple MathJax 3 version check
@ -57,18 +67,13 @@ export function isMathJaxVersion3( version ) {
return version && typeof version === 'string' && version . split ( '.' ) . length === 3 && version . split ( '.' ) [ 0 ] === '3' ;
}
export function getSelectedMathModelWidget ( selection ) {
const selectedElement = selection . getSelectedElement ( ) ;
if ( selectedElement && selectedElement . is ( 'mathtex' ) ) {
return selectedElement ;
}
return null ;
// Check if equation has delimiters
export function hasDelimiters ( text ) {
return text . match ( /^(\\\[.*?\\\]|\\\(.*?\\\))$/ ) ;
}
// Remove delimiters and figure display mode for the model
export function remove Delimiters( equation ) {
// Extract delimiters and figure display mode for the model
export function extractDelimiters ( equation ) {
equation = equation . trim ( ) ;
// Remove delimiters (e.g. \( \) or \[ \])
Sauli Anto