Commit Graph

15 Commits

Author SHA1 Message Date
Erik Demaine
484d44ee70 Unicode accents (#992)
* Unicode accents

* Lexer now looks for combining dicritical marks and adds them to the same character
* Parser's `parseSymbol` now recognizes both combined and uncombined forms of Unicode accents, and builds accent objects just like the accent functions
* Added CJK support to math mode (not just text mode)

* Add invalid combining character test

* Add MathML test

* Add weak support for other Latin-1 characters

This maintains backwards compatibility, but it uses the wrong font.
There's a TODO to fix this later.

Also refactor symbol code to use for..of

* Update Unicode screenshot

* Remove dot from accented i and j (in math mode)

Also add dotless Unicode characters to support some accented i's and j's

* Fix \imath, \jmath, \pounds, and more tests

* Switch from for..of to .split().forEach()

Save around 800 bytes in minified code

* Fix split

* normalize() detection

* Convert back to vanilla for loops

* Fix merge

* Move normalize dependency to unicodeMake.js

* Make unicodeSymbols into a lookup table instead of macros

This is important for multi-accented characters.

* Add comments about when to run

* Move symbols definition into unicodeMake/Symbols.js

* Remove CJK support in text mode

* Add missing semicolon

* Refactor unicodeAccents to its own file

* Dotless i/j support in text mode

* Remove excess character mappings

* Fix Åå in math mode (still via Times)

* Update to support #1030

* Add accented Greek letter support (for supported Greek symbols)

* Update screenshot

* remove Æ, æ, Ø, ø, and ß from math mode test
2017-12-28 23:32:45 -07:00
Erik Demaine
f10ea4cbeb Implement \verb (#614)
* Implement \verb

* Implement @gagern's comments

* \verb: look up characters one at a time.

* Add screenshot test for \verb

* Add error tests for \verb

* Include space symbol in typewriter font, and fix single quotes

This is based on https://github.com/Khan/MathJax-dev/pull/2
which hasn't been accepted yet at the time this commit is made.

* Add \verb* tests

* \verb should use Typewriter-Regular font!

* Switch \verb to use text mode and no-break space.

* Screenshot update with Typewriter-Regular

* \verb test: fix *, add commas to make spaces clear

* Fix spaces and style handling

* Implement @kevinbarabash's comments

* Make error clearly an assertion failure

* verb screenshot for Chrome
2017-09-21 23:43:05 -04:00
Erik Demaine
588f5a1ee6 eslint-plugin-flowtype & upgrade to eslint@4 (#849)
* Add eslint-plugin-flowtype. Fix #844

Using the recommended settings for plugin.
This involved adding some spaces to some existing union types.

* Upgrade to eslint@4, fix spotted bugs

Switched to indent-legacy to allow e.g. comments to have extra indents.
2017-09-06 22:06:26 -04:00
Erik Demaine
201193233e Support for \' \` \^ \~ \= \u \. \" \r \H \v text-mode accents (#802)
* Support for \' \` \^ \~ \= \u \. \" \r \H \v text-mode accents

* bug fix

* Possible Safari fix

* Forbid text accents in math mode

* Switch to noncombining characters for most accents. Revert Safari change.

* Add tests

* Found non-combining diaresis accent too
2017-08-23 03:18:33 -04:00
Kevin Barabash
361c500a7f Switch from jasmine to jest (#747)
Summary:
The reasons for switching to jest:
- easy snapshot testing so that we can easily verify the structure of the parse tree and MathML tree
- easy compilation of ES6 features for tests as we continue to expand our use of ES6

Test Plan:
- npm test
2017-07-11 14:16:26 -04:00
Hossein Saniei
a019f36f8a Upgrade the source to use ES6 syntax including classes, import and static properties (#679)
* 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
2017-07-03 08:09:21 -04:00
Erik Demaine
25dde7f841 Implicit \color, explicitly grouped \textcolor (#619) 2017-06-12 23:11:27 -04:00
Erik Demaine
a738185704 Fix x'^2 (#636)
* Fix x'^2
* Add screenshot for x'^2
* x^2' should fail.  Add and fix multiple prime/superscript tests.
2017-01-19 19:50:16 +01:00
Martin von Gagern
bd9db332d2 Turn var into const or let 2017-01-13 22:37:17 -05:00
Martin von Gagern
53e416e296 Revert "Remove trailing commas for IE 9 compatibility"
This reverts commit 4d2e46e7f6.

Having trailing commans makes diffs easier to read as it avoids modifying a
line just to add a trailing comma if there is another item to add at the end
of a list.  There are plans to switch to ES6 notation and to translate that
to ES5 as part of the build process.  Since that translation would remove
trailing commas, the IE9 problems that originally motivated the commit
should vanish soon.
2017-01-11 13:26:00 +01:00
Emily Eisenberg
4d2e46e7f6 Remove trailing commas for IE 9 compatibility
Summary: IE 9 doesn't like trailing commas. When we introduced eslint, we added
a bunch of trailing commas, which makes IE 9 sad.

Test Plan:
 - `make lint`
 - Visit http://localhost:7936/ using IE 9 on browserstack.
 - See that the math loads, and there are no errors in the F12 developer tools.

@kevinb
2017-01-06 19:06:01 -08:00
Eddie Kohler
530ec97e74 Allow unbraced kerns, such as \kern1em.
This is actually the *only* syntax TeX allows; braced kern units
are invalid.
2016-12-08 23:26:31 -05:00
Martin von Gagern
8c55aed39a Allow macro definitions in settings (#493)
* Introduce MacroExpander

The job of the MacroExpander is turning a stream of possibly expandable
tokens, as obtained from the Lexer, into a stream of non-expandable tokens
(in KaTeX, even though they may well be expandable in TeX) which can be
processed by the Parser.  The challenge here is that we don't have
mode-specific lexer implementations any more, so we need to do everything on
the token level, including reassembly of sizes and colors.

* Make macros available in development server

Now one can specify macro definitions like \foo=bar as part of the query
string and use these macros in the formula being typeset.

* Add tests for macro expansions

* Handle end of input in special groups

This avoids an infinite loop if input ends prematurely.

* Simplify parseSpecialGroup

The parseSpecialGroup methos now returns a single token spanning the whole
special group, and leaves matching that string against a suitable regular
expression to whoever is calling the method.  Suggested by @cbreeden.

* Incorporate review suggestions

Add improvements suggested by Kevin Barabash during review.

* Input range sanity checks

Ensure that both tokens of a token range come from the same lexer,
and that the range has a non-negative length.

* Improved wording of two comments
2016-07-08 12:24:31 -07:00
Kevin Barabash
14a58adb90 Migrate to eslint
Summary
We'd like contributors to use the same linter and lint rules that we use
internally.  This diff swaps out eslint for jshint and fixes all lint failures
except for the max-len failures in the test suites.

Test Plan:
- ka-lint src
- make lint
- make test

Reviewers: emily
2015-12-01 10:02:08 -08:00
Martin von Gagern
e7195601e1 Added unit tests for error messages
This is an attempt to actually exercise all the code paths which can lead to
a ParserError exception (from malformed user input, without tinkering with
any KaTeX internals or exploiting a KaTeX bug).  It documents the current
state of affairs, without changing any error messages.  Comments indicate
future work, particularly with respect to the position often associated with
these error messages.
2015-11-21 15:38:26 +01:00