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Improve MathML for \coloneqq, \dblcolon, \eqcolon, and \eqqcolon (#1889)

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* Improve MathML for colonequals

* Fix lint errors

* Change to macro implementation
This commit is contained in:
Ron Kok
2019-03-23 21:22:28 -07:00
committed by ylemkimon
parent 8da1377c08
commit f95160b041
1 changed files with 14 additions and 6 deletions
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20
src/macros.js
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@@ -719,10 +719,13 @@ defineMacro("\\ordinarycolon", ":");
//TODO(edemaine): Not yet centered. Fix via \raisebox or #726
defineMacro("\\vcentcolon", "\\mathrel{\\mathop\\ordinarycolon}");
// \providecommand*\dblcolon{\vcentcolon\mathrel{\mkern-.9mu}\vcentcolon}
defineMacro("\\dblcolon",
"\\mathrel{\\vcentcolon\\mathrel{\\mkern-.9mu}\\vcentcolon}");
defineMacro("\\dblcolon", "\\html@mathml{" +
"\\mathrel{\\vcentcolon\\mathrel{\\mkern-.9mu}\\vcentcolon}}" +
"{\\mathop{\\char\"2237}}");
// \providecommand*\coloneqq{\vcentcolon\mathrel{\mkern-1.2mu}=}
defineMacro("\\coloneqq", "\\mathrel{\\vcentcolon\\mathrel{\\mkern-1.2mu}=}");
defineMacro("\\coloneqq", "\\html@mathml{" +
"\\mathrel{\\vcentcolon\\mathrel{\\mkern-1.2mu}=}}" +
"{\\mathop{\\char\"2254}}"); // ≔
// \providecommand*\Coloneqq{\dblcolon\mathrel{\mkern-1.2mu}=}
defineMacro("\\Coloneqq", "\\mathrel{\\dblcolon\\mathrel{\\mkern-1.2mu}=}");
// \providecommand*\coloneq{\vcentcolon\mathrel{\mkern-1.2mu}\mathrel{-}}
@@ -732,12 +735,15 @@ defineMacro("\\coloneq",
defineMacro("\\Coloneq",
"\\mathrel{\\dblcolon\\mathrel{\\mkern-1.2mu}\\mathrel{-}}");
// \providecommand*\eqqcolon{=\mathrel{\mkern-1.2mu}\vcentcolon}
defineMacro("\\eqqcolon", "\\mathrel{=\\mathrel{\\mkern-1.2mu}\\vcentcolon}");
defineMacro("\\eqqcolon", "\\html@mathml{" +
"\\mathrel{=\\mathrel{\\mkern-1.2mu}\\vcentcolon}}" +
"{\\mathop{\\char\"2255}}"); // ≕
// \providecommand*\Eqqcolon{=\mathrel{\mkern-1.2mu}\dblcolon}
defineMacro("\\Eqqcolon", "\\mathrel{=\\mathrel{\\mkern-1.2mu}\\dblcolon}");
// \providecommand*\eqcolon{\mathrel{-}\mathrel{\mkern-1.2mu}\vcentcolon}
defineMacro("\\eqcolon",
"\\mathrel{\\mathrel{-}\\mathrel{\\mkern-1.2mu}\\vcentcolon}");
defineMacro("\\eqcolon", "\\html@mathml{" +
"\\mathrel{\\mathrel{-}\\mathrel{\\mkern-1.2mu}\\vcentcolon}}" +
"{\\mathop{\\char\"2239}}");
// \providecommand*\Eqcolon{\mathrel{-}\mathrel{\mkern-1.2mu}\dblcolon}
defineMacro("\\Eqcolon",
"\\mathrel{\\mathrel{-}\\mathrel{\\mkern-1.2mu}\\dblcolon}");
@@ -753,6 +759,8 @@ defineMacro("\\colonsim", "\\mathrel{\\vcentcolon\\mathrel{\\mkern-1.2mu}\\sim}"
defineMacro("\\Colonsim", "\\mathrel{\\dblcolon\\mathrel{\\mkern-1.2mu}\\sim}");
// Some Unicode characters are implemented with macros to mathtools functions.
defineMacro("\u2237", "\\dblcolon"); // ::
defineMacro("\u2239", "\\eqcolon"); // -:
defineMacro("\u2254", "\\coloneqq"); // :=
defineMacro("\u2255", "\\eqqcolon"); // =:
defineMacro("\u2A74", "\\Coloneqq"); // ::=