ylemkimon dc5f97aaa2 feat(macro): improve argument parsing (#2085) ...

* Improve macro argument parsing

* Make \above a primitive command

* Fix screenshotter data

* Normalize argument where necessary

* Improve argument location info

* Update comments

* Minor refactor

* Modularize group parsers

* Allow braced and blank size argument

for non-strict mode and \genfrac, respectively.

* Minor refactor & update comments

* Remove raw option in parseStringGroup

* Update tests

* Fix { delimited parameter

* Update tests

* Update tests

* Normalize argument in \genfrac

* Update tests

* Consume space before scanning an optional argument

* Fix \\, \newline, and \cr behavior

* Fix flow error

* Update comments

* Remove unnecessary mode switching

Parser mode affects neither fetch nor consume.

* Allow single (active) character macro

* Add function property `primitive`

* Set \mathchoice and \*style primitive

* Separate size-related improvements out to #2139

* Fix flow error

* Update screenshots

* Update demo example

* Add a migration guide

* Fix capitalization

* Make a primitive function unexpandable

* Update screenshots

* Update screenshots

* Revert "Document \def doesn't support delimiters (#2288) (#2289)"

This reverts commit f96fba6f7f.

* Update comments, errors, and tests

* Update screenshots

2020-09-06 12:56:13 +09:00

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