patrick/KaTeX
1
0
Fork 0
mirror of https://github.com/Smaug123/KaTeX synced 2025-10-05 11:18:39 +00:00
Code Issues Packages Projects Releases Wiki Activity

Upgrade the source to use ES6 syntax including classes, import and static properties (#679)

Browse Source 
* Add babel transform-class-properties to have static class properties

* Upgrade Lexer and Parser files to use ES6 classes

* Update eslint max line length to 90 character (more indent because of using ES6 classes)

* Upgrade eslint and jasmin to support ES stage-2 features

* Use static properties to place constants near their functions

* Migrate all remaining sources to ES6 syntax

* Increase eslint max line length to 84

* Remove non-babelified endpoint in dev server.js

* Clean up server.js functions after removing browserified

* Make screenshotter not to use babel endpoint as we babelify everything now
This commit is contained in:
Hossein Saniei
2017-07-03 16:39:21 +04:30
committed by Kevin Barabash
parent 0edd3d1bbb
commit a019f36f8a
28 changed files with 1766 additions and 1759 deletions
Download Patch File Download Diff File Expand all files Collapse all files

82
src/ParseError.js
View File

@@ -9,53 +9,55 @@
* @param {string} message The error message
* @param {(Token|ParseNode)=} token An object providing position information
*/
function ParseError(message, token) {
let error = "KaTeX parse error: " + message;
let start;
let end;
class ParseError {
constructor(message, token) {
let error = "KaTeX parse error: " + message;
let start;
let end;
if (token && token.lexer && token.start <= token.end) {
// If we have the input and a position, make the error a bit fancier
if (token && token.lexer && token.start <= token.end) {
// If we have the input and a position, make the error a bit fancier
// Get the input
const input = token.lexer.input;
// Get the input
const input = token.lexer.input;
// Prepend some information
start = token.start;
end = token.end;
if (start === input.length) {
error += " at end of input: ";
} else {
error += " at position " + (start + 1) + ": ";
// Prepend some information
start = token.start;
end = token.end;
if (start === input.length) {
error += " at end of input: ";
} else {
error += " at position " + (start + 1) + ": ";
}
// Underline token in question using combining underscores
const underlined = input.slice(start, end).replace(/[^]/g, "$&\u0332");
// Extract some context from the input and add it to the error
let left;
if (start > 15) {
left = "…" + input.slice(start - 15, start);
} else {
left = input.slice(0, start);
}
let right;
if (end + 15 < input.length) {
right = input.slice(end, end + 15) + "…";
} else {
right = input.slice(end);
}
error += left + underlined + right;
}
// Underline token in question using combining underscores
const underlined = input.slice(start, end).replace(/[^]/g, "$&\u0332");
// Some hackery to make ParseError a prototype of Error
// See http://stackoverflow.com/a/8460753
const self = new Error(error);
self.name = "ParseError";
self.__proto__ = ParseError.prototype;
// Extract some context from the input and add it to the error
let left;
if (start > 15) {
left = "…" + input.slice(start - 15, start);
} else {
left = input.slice(0, start);
}
let right;
if (end + 15 < input.length) {
right = input.slice(end, end + 15) + "…";
} else {
right = input.slice(end);
}
error += left + underlined + right;
self.position = start;
return self;
}
// Some hackery to make ParseError a prototype of Error
// See http://stackoverflow.com/a/8460753
const self = new Error(error);
self.name = "ParseError";
self.__proto__ = ParseError.prototype;
self.position = start;
return self;
}
// More hackery