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Support \arraystretch as a macro definition (#1381)

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* Support \arraystretch as a macro definition

Also add `expandMacro` and `expandMacroAsText` helpers to `MacroExpander`.

* Remove excess defaulting

* Add test
This commit is contained in:
Erik Demaine
2018-06-03 18:19:23 -04:00
committed by Kevin Barabash
parent 563b0d5f8f
commit fcb32f058b
5 changed files with 212 additions and 6 deletions
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143
test/__snapshots__/katex-spec.js.snap
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@@ -1,5 +1,148 @@
// Jest Snapshot v1, https://goo.gl/fbAQLP
exports[`A begin/end parser should grab \\arraystretch 1`] = `
[
{
"type": "array",
"mode": "math",
"value": {
"type": "array",
"arraystretch": 1.5,
"body": [
[
{
"type": "styling",
"mode": "math",
"value": {
"type": "styling",
"style": "text",
"value": [
{
"type": "ordgroup",
"mode": "math",
"value": [
{
"type": "mathord",
"loc": {
"end": 37,
"lexer": {
"input": "\\\\def\\\\arraystretch{1.5}\\\\begin{matrix}a&b\\\\\\\\c&d\\\\end{matrix}",
"pos": 56
},
"start": 36
},
"mode": "math",
"value": "a"
}
]
}
]
}
},
{
"type": "styling",
"mode": "math",
"value": {
"type": "styling",
"style": "text",
"value": [
{
"type": "ordgroup",
"mode": "math",
"value": [
{
"type": "mathord",
"loc": {
"end": 39,
"lexer": {
"input": "\\\\def\\\\arraystretch{1.5}\\\\begin{matrix}a&b\\\\\\\\c&d\\\\end{matrix}",
"pos": 56
},
"start": 38
},
"mode": "math",
"value": "b"
}
]
}
]
}
}
],
[
{
"type": "styling",
"mode": "math",
"value": {
"type": "styling",
"style": "text",
"value": [
{
"type": "ordgroup",
"mode": "math",
"value": [
{
"type": "mathord",
"loc": {
"end": 42,
"lexer": {
"input": "\\\\def\\\\arraystretch{1.5}\\\\begin{matrix}a&b\\\\\\\\c&d\\\\end{matrix}",
"pos": 56
},
"start": 41
},
"mode": "math",
"value": "c"
}
]
}
]
}
},
{
"type": "styling",
"mode": "math",
"value": {
"type": "styling",
"style": "text",
"value": [
{
"type": "ordgroup",
"mode": "math",
"value": [
{
"type": "mathord",
"loc": {
"end": 44,
"lexer": {
"input": "\\\\def\\\\arraystretch{1.5}\\\\begin{matrix}a&b\\\\\\\\c&d\\\\end{matrix}",
"pos": 56
},
"start": 43
},
"mode": "math",
"value": "d"
}
]
}
]
}
}
]
],
"hskipBeforeAndAfter": false,
"numHLinesBeforeRow": [
0,
0
],
"rowGaps": [
null
]
}
}
]
`;
exports[`A parser that does not throw on unsupported commands should build katex-error span for other type of KaTeX error 1`] = `
{
"attributes": {