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Support "mu" units for sizes.

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18mu is 1em.

And use emPerEx when converting ex to em, rather than xHeight.
(Previously some places used emPerEx and others used xHeight.)
This commit is contained in:
Eddie Kohler
2016-12-08 15:00:57 -05:00
parent 3900936f63
commit d5cedc55c9
3 changed files with 22 additions and 30 deletions
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6
test/katex-spec.js
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@@ -977,15 +977,18 @@ describe("A rule parser", function() {
describe("A kern parser", function() {
var emKern = "\\kern{1em}";
var exKern = "\\kern{1ex}";
var muKern = "\\kern{1mu}";
var badUnitRule = "\\kern{1px}";
var noNumberRule = "\\kern{em}";
it("should list the correct units", function() {
var emParse = getParsed(emKern)[0];
var exParse = getParsed(exKern)[0];
var muParse = getParsed(muKern)[0];
expect(emParse.value.dimension.unit).toEqual("em");
expect(exParse.value.dimension.unit).toEqual("ex");
expect(muParse.value.dimension.unit).toEqual("mu");
});
it("should not parse invalid units", function() {
@@ -1007,15 +1010,18 @@ describe("A kern parser", function() {
describe("A non-braced kern parser", function() {
var emKern = "\\kern1em";
var exKern = "\\kern 1 ex";
var muKern = "\\kern 1mu";
var badUnitRule = "\\kern1px";
var noNumberRule = "\\kern em";
it("should list the correct units", function() {
var emParse = getParsed(emKern)[0];
var exParse = getParsed(exKern)[0];
var muParse = getParsed(muKern)[0];
expect(emParse.value.dimension.unit).toEqual("em");
expect(exParse.value.dimension.unit).toEqual("ex");
expect(muParse.value.dimension.unit).toEqual("mu");
});
it("should not parse invalid units", function() {