mirror of
https://github.com/Smaug123/KaTeX
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Merge pull request #348 from gagern/splitBuildHandlers
Split groupType literals in buildHTML and buildMathML
This commit is contained in:
Kevin Barabash
2128
src/buildHTML.js
2128
src/buildHTML.js
File diff suppressed because it is too large
Load Diff
@@ -61,397 +61,397 @@ var getVariant = function(group, options) {
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* Functions for handling the different types of groups found in the parse
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* tree. Each function should take a parse group and return a MathML node.
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*/
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var groupTypes = {
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mathord: function(group, options) {
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var node = new mathMLTree.MathNode(
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"mi",
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[makeText(group.value, group.mode)]);
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var groupTypes = {};
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var variant = getVariant(group, options);
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if (variant) {
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groupTypes.mathord = function(group, options) {
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var node = new mathMLTree.MathNode(
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"mi",
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[makeText(group.value, group.mode)]);
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var variant = getVariant(group, options);
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if (variant) {
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node.setAttribute("mathvariant", variant);
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}
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return node;
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};
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groupTypes.textord = function(group, options) {
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var text = makeText(group.value, group.mode);
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var variant = getVariant(group, options) || "normal";
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var node;
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if (/[0-9]/.test(group.value)) {
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// TODO(kevinb) merge adjacent <mn> nodes
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// do it as a post processing step
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node = new mathMLTree.MathNode("mn", [text]);
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if (options.font) {
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node.setAttribute("mathvariant", variant);
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}
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return node;
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},
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} else {
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node = new mathMLTree.MathNode("mi", [text]);
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node.setAttribute("mathvariant", variant);
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}
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textord: function(group, options) {
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var text = makeText(group.value, group.mode);
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return node;
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};
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var variant = getVariant(group, options) || "normal";
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groupTypes.bin = function(group) {
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var node = new mathMLTree.MathNode(
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"mo", [makeText(group.value, group.mode)]);
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var node;
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if (/[0-9]/.test(group.value)) {
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// TODO(kevinb) merge adjacent <mn> nodes
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// do it as a post processing step
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node = new mathMLTree.MathNode("mn", [text]);
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if (options.font) {
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node.setAttribute("mathvariant", variant);
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}
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} else {
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node = new mathMLTree.MathNode("mi", [text]);
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node.setAttribute("mathvariant", variant);
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return node;
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};
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groupTypes.rel = function(group) {
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var node = new mathMLTree.MathNode(
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"mo", [makeText(group.value, group.mode)]);
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return node;
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};
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groupTypes.open = function(group) {
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var node = new mathMLTree.MathNode(
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"mo", [makeText(group.value, group.mode)]);
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return node;
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};
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groupTypes.close = function(group) {
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var node = new mathMLTree.MathNode(
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"mo", [makeText(group.value, group.mode)]);
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return node;
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};
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groupTypes.inner = function(group) {
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var node = new mathMLTree.MathNode(
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"mo", [makeText(group.value, group.mode)]);
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return node;
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};
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groupTypes.punct = function(group) {
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var node = new mathMLTree.MathNode(
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"mo", [makeText(group.value, group.mode)]);
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node.setAttribute("separator", "true");
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return node;
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};
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groupTypes.ordgroup = function(group, options) {
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var inner = buildExpression(group.value, options);
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var node = new mathMLTree.MathNode("mrow", inner);
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return node;
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};
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groupTypes.text = function(group, options) {
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var inner = buildExpression(group.value.body, options);
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var node = new mathMLTree.MathNode("mtext", inner);
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return node;
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};
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groupTypes.color = function(group, options) {
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var inner = buildExpression(group.value.value, options);
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var node = new mathMLTree.MathNode("mstyle", inner);
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node.setAttribute("mathcolor", group.value.color);
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return node;
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};
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groupTypes.supsub = function(group, options) {
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var children = [buildGroup(group.value.base, options)];
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if (group.value.sub) {
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children.push(buildGroup(group.value.sub, options));
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}
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if (group.value.sup) {
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children.push(buildGroup(group.value.sup, options));
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}
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var nodeType;
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if (!group.value.sub) {
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nodeType = "msup";
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} else if (!group.value.sup) {
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nodeType = "msub";
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} else {
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nodeType = "msubsup";
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}
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var node = new mathMLTree.MathNode(nodeType, children);
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return node;
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};
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groupTypes.genfrac = function(group, options) {
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var node = new mathMLTree.MathNode(
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"mfrac",
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[buildGroup(group.value.numer, options),
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buildGroup(group.value.denom, options)]);
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if (!group.value.hasBarLine) {
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node.setAttribute("linethickness", "0px");
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}
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if (group.value.leftDelim != null || group.value.rightDelim != null) {
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var withDelims = [];
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if (group.value.leftDelim != null) {
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var leftOp = new mathMLTree.MathNode(
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"mo", [new mathMLTree.TextNode(group.value.leftDelim)]);
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leftOp.setAttribute("fence", "true");
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withDelims.push(leftOp);
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}
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return node;
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},
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withDelims.push(node);
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bin: function(group) {
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var node = new mathMLTree.MathNode(
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"mo", [makeText(group.value, group.mode)]);
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if (group.value.rightDelim != null) {
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var rightOp = new mathMLTree.MathNode(
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"mo", [new mathMLTree.TextNode(group.value.rightDelim)]);
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return node;
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},
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rightOp.setAttribute("fence", "true");
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rel: function(group) {
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var node = new mathMLTree.MathNode(
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"mo", [makeText(group.value, group.mode)]);
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return node;
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},
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open: function(group) {
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var node = new mathMLTree.MathNode(
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"mo", [makeText(group.value, group.mode)]);
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return node;
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},
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close: function(group) {
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var node = new mathMLTree.MathNode(
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"mo", [makeText(group.value, group.mode)]);
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return node;
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},
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inner: function(group) {
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var node = new mathMLTree.MathNode(
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"mo", [makeText(group.value, group.mode)]);
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return node;
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},
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punct: function(group) {
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var node = new mathMLTree.MathNode(
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"mo", [makeText(group.value, group.mode)]);
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node.setAttribute("separator", "true");
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return node;
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},
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ordgroup: function(group, options) {
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var inner = buildExpression(group.value, options);
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var node = new mathMLTree.MathNode("mrow", inner);
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return node;
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},
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text: function(group, options) {
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var inner = buildExpression(group.value.body, options);
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var node = new mathMLTree.MathNode("mtext", inner);
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return node;
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},
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color: function(group, options) {
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var inner = buildExpression(group.value.value, options);
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var node = new mathMLTree.MathNode("mstyle", inner);
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node.setAttribute("mathcolor", group.value.color);
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return node;
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},
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supsub: function(group, options) {
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var children = [buildGroup(group.value.base, options)];
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if (group.value.sub) {
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children.push(buildGroup(group.value.sub, options));
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withDelims.push(rightOp);
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}
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if (group.value.sup) {
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children.push(buildGroup(group.value.sup, options));
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}
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var nodeType;
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if (!group.value.sub) {
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nodeType = "msup";
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} else if (!group.value.sup) {
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nodeType = "msub";
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} else {
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nodeType = "msubsup";
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}
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var node = new mathMLTree.MathNode(nodeType, children);
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return node;
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},
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genfrac: function(group, options) {
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var node = new mathMLTree.MathNode(
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"mfrac",
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[buildGroup(group.value.numer, options),
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buildGroup(group.value.denom, options)]);
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if (!group.value.hasBarLine) {
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node.setAttribute("linethickness", "0px");
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}
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if (group.value.leftDelim != null || group.value.rightDelim != null) {
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var withDelims = [];
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if (group.value.leftDelim != null) {
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var leftOp = new mathMLTree.MathNode(
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"mo", [new mathMLTree.TextNode(group.value.leftDelim)]);
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leftOp.setAttribute("fence", "true");
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withDelims.push(leftOp);
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}
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withDelims.push(node);
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if (group.value.rightDelim != null) {
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var rightOp = new mathMLTree.MathNode(
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"mo", [new mathMLTree.TextNode(group.value.rightDelim)]);
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rightOp.setAttribute("fence", "true");
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withDelims.push(rightOp);
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}
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var outerNode = new mathMLTree.MathNode("mrow", withDelims);
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return outerNode;
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}
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return node;
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},
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array: function(group, options) {
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return new mathMLTree.MathNode(
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"mtable", group.value.body.map(function(row) {
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return new mathMLTree.MathNode(
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"mtr", row.map(function(cell) {
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return new mathMLTree.MathNode(
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"mtd", [buildGroup(cell, options)]);
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}));
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}));
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},
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sqrt: function(group, options) {
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var node;
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if (group.value.index) {
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node = new mathMLTree.MathNode(
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"mroot", [
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buildGroup(group.value.body, options),
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buildGroup(group.value.index, options)
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]);
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} else {
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node = new mathMLTree.MathNode(
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"msqrt", [buildGroup(group.value.body, options)]);
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}
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return node;
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},
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leftright: function(group, options) {
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var inner = buildExpression(group.value.body, options);
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if (group.value.left !== ".") {
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var leftNode = new mathMLTree.MathNode(
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"mo", [makeText(group.value.left, group.mode)]);
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leftNode.setAttribute("fence", "true");
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inner.unshift(leftNode);
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}
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if (group.value.right !== ".") {
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var rightNode = new mathMLTree.MathNode(
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"mo", [makeText(group.value.right, group.mode)]);
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rightNode.setAttribute("fence", "true");
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inner.push(rightNode);
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}
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var outerNode = new mathMLTree.MathNode("mrow", inner);
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var outerNode = new mathMLTree.MathNode("mrow", withDelims);
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return outerNode;
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},
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accent: function(group, options) {
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var accentNode = new mathMLTree.MathNode(
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"mo", [makeText(group.value.accent, group.mode)]);
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var node = new mathMLTree.MathNode(
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"mover",
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[buildGroup(group.value.base, options),
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accentNode]);
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node.setAttribute("accent", "true");
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return node;
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},
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spacing: function(group) {
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var node;
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if (group.value === "\\ " || group.value === "\\space" ||
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group.value === " " || group.value === "~") {
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node = new mathMLTree.MathNode(
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"mtext", [new mathMLTree.TextNode("\u00a0")]);
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} else {
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node = new mathMLTree.MathNode("mspace");
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node.setAttribute(
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"width", buildCommon.spacingFunctions[group.value].size);
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}
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return node;
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},
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op: function(group) {
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var node;
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// TODO(emily): handle big operators using the `largeop` attribute
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if (group.value.symbol) {
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// This is a symbol. Just add the symbol.
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node = new mathMLTree.MathNode(
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"mo", [makeText(group.value.body, group.mode)]);
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} else {
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// This is a text operator. Add all of the characters from the
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// operator's name.
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// TODO(emily): Add a space in the middle of some of these
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// operators, like \limsup.
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node = new mathMLTree.MathNode(
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"mi", [new mathMLTree.TextNode(group.value.body.slice(1))]);
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}
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return node;
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},
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katex: function(group) {
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var node = new mathMLTree.MathNode(
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"mtext", [new mathMLTree.TextNode("KaTeX")]);
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return node;
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},
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font: function(group, options) {
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var font = group.value.font;
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return buildGroup(group.value.body, options.withFont(font));
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},
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delimsizing: function(group) {
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var children = [];
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if (group.value.value !== ".") {
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children.push(makeText(group.value.value, group.mode));
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}
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var node = new mathMLTree.MathNode("mo", children);
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if (group.value.delimType === "open" ||
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group.value.delimType === "close") {
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// Only some of the delimsizing functions act as fences, and they
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// return "open" or "close" delimTypes.
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node.setAttribute("fence", "true");
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} else {
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// Explicitly disable fencing if it's not a fence, to override the
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// defaults.
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node.setAttribute("fence", "false");
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}
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return node;
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},
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styling: function(group, options) {
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var inner = buildExpression(group.value.value, options);
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var node = new mathMLTree.MathNode("mstyle", inner);
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var styleAttributes = {
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"display": ["0", "true"],
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"text": ["0", "false"],
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"script": ["1", "false"],
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"scriptscript": ["2", "false"]
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};
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var attr = styleAttributes[group.value.style];
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node.setAttribute("scriptlevel", attr[0]);
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node.setAttribute("displaystyle", attr[1]);
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return node;
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},
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sizing: function(group, options) {
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var inner = buildExpression(group.value.value, options);
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var node = new mathMLTree.MathNode("mstyle", inner);
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// TODO(emily): This doesn't produce the correct size for nested size
|
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// changes, because we don't keep state of what style we're currently
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// in, so we can't reset the size to normal before changing it. Now
|
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// that we're passing an options parameter we should be able to fix
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// this.
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node.setAttribute(
|
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"mathsize", buildCommon.sizingMultiplier[group.value.size] + "em");
|
||||
|
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return node;
|
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},
|
||||
|
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overline: function(group, options) {
|
||||
var operator = new mathMLTree.MathNode(
|
||||
"mo", [new mathMLTree.TextNode("\u203e")]);
|
||||
operator.setAttribute("stretchy", "true");
|
||||
|
||||
var node = new mathMLTree.MathNode(
|
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"mover",
|
||||
[buildGroup(group.value.body, options),
|
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operator]);
|
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node.setAttribute("accent", "true");
|
||||
|
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return node;
|
||||
},
|
||||
|
||||
rule: function(group) {
|
||||
// TODO(emily): Figure out if there's an actual way to draw black boxes
|
||||
// in MathML.
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||||
var node = new mathMLTree.MathNode("mrow");
|
||||
|
||||
return node;
|
||||
},
|
||||
|
||||
llap: function(group, options) {
|
||||
var node = new mathMLTree.MathNode(
|
||||
"mpadded", [buildGroup(group.value.body, options)]);
|
||||
|
||||
node.setAttribute("lspace", "-1width");
|
||||
node.setAttribute("width", "0px");
|
||||
|
||||
return node;
|
||||
},
|
||||
|
||||
rlap: function(group, options) {
|
||||
var node = new mathMLTree.MathNode(
|
||||
"mpadded", [buildGroup(group.value.body, options)]);
|
||||
|
||||
node.setAttribute("width", "0px");
|
||||
|
||||
return node;
|
||||
},
|
||||
|
||||
phantom: function(group, options, prev) {
|
||||
var inner = buildExpression(group.value.value, options);
|
||||
return new mathMLTree.MathNode("mphantom", inner);
|
||||
}
|
||||
|
||||
return node;
|
||||
};
|
||||
|
||||
groupTypes.array = function(group, options) {
|
||||
return new mathMLTree.MathNode(
|
||||
"mtable", group.value.body.map(function(row) {
|
||||
return new mathMLTree.MathNode(
|
||||
"mtr", row.map(function(cell) {
|
||||
return new mathMLTree.MathNode(
|
||||
"mtd", [buildGroup(cell, options)]);
|
||||
}));
|
||||
}));
|
||||
};
|
||||
|
||||
groupTypes.sqrt = function(group, options) {
|
||||
var node;
|
||||
if (group.value.index) {
|
||||
node = new mathMLTree.MathNode(
|
||||
"mroot", [
|
||||
buildGroup(group.value.body, options),
|
||||
buildGroup(group.value.index, options)
|
||||
]);
|
||||
} else {
|
||||
node = new mathMLTree.MathNode(
|
||||
"msqrt", [buildGroup(group.value.body, options)]);
|
||||
}
|
||||
|
||||
return node;
|
||||
};
|
||||
|
||||
groupTypes.leftright = function(group, options) {
|
||||
var inner = buildExpression(group.value.body, options);
|
||||
|
||||
if (group.value.left !== ".") {
|
||||
var leftNode = new mathMLTree.MathNode(
|
||||
"mo", [makeText(group.value.left, group.mode)]);
|
||||
|
||||
leftNode.setAttribute("fence", "true");
|
||||
|
||||
inner.unshift(leftNode);
|
||||
}
|
||||
|
||||
if (group.value.right !== ".") {
|
||||
var rightNode = new mathMLTree.MathNode(
|
||||
"mo", [makeText(group.value.right, group.mode)]);
|
||||
|
||||
rightNode.setAttribute("fence", "true");
|
||||
|
||||
inner.push(rightNode);
|
||||
}
|
||||
|
||||
var outerNode = new mathMLTree.MathNode("mrow", inner);
|
||||
|
||||
return outerNode;
|
||||
};
|
||||
|
||||
groupTypes.accent = function(group, options) {
|
||||
var accentNode = new mathMLTree.MathNode(
|
||||
"mo", [makeText(group.value.accent, group.mode)]);
|
||||
|
||||
var node = new mathMLTree.MathNode(
|
||||
"mover",
|
||||
[buildGroup(group.value.base, options),
|
||||
accentNode]);
|
||||
|
||||
node.setAttribute("accent", "true");
|
||||
|
||||
return node;
|
||||
};
|
||||
|
||||
groupTypes.spacing = function(group) {
|
||||
var node;
|
||||
|
||||
if (group.value === "\\ " || group.value === "\\space" ||
|
||||
group.value === " " || group.value === "~") {
|
||||
node = new mathMLTree.MathNode(
|
||||
"mtext", [new mathMLTree.TextNode("\u00a0")]);
|
||||
} else {
|
||||
node = new mathMLTree.MathNode("mspace");
|
||||
|
||||
node.setAttribute(
|
||||
"width", buildCommon.spacingFunctions[group.value].size);
|
||||
}
|
||||
|
||||
return node;
|
||||
};
|
||||
|
||||
groupTypes.op = function(group) {
|
||||
var node;
|
||||
|
||||
// TODO(emily): handle big operators using the `largeop` attribute
|
||||
|
||||
if (group.value.symbol) {
|
||||
// This is a symbol. Just add the symbol.
|
||||
node = new mathMLTree.MathNode(
|
||||
"mo", [makeText(group.value.body, group.mode)]);
|
||||
} else {
|
||||
// This is a text operator. Add all of the characters from the
|
||||
// operator's name.
|
||||
// TODO(emily): Add a space in the middle of some of these
|
||||
// operators, like \limsup.
|
||||
node = new mathMLTree.MathNode(
|
||||
"mi", [new mathMLTree.TextNode(group.value.body.slice(1))]);
|
||||
}
|
||||
|
||||
return node;
|
||||
};
|
||||
|
||||
groupTypes.katex = function(group) {
|
||||
var node = new mathMLTree.MathNode(
|
||||
"mtext", [new mathMLTree.TextNode("KaTeX")]);
|
||||
|
||||
return node;
|
||||
};
|
||||
|
||||
groupTypes.font = function(group, options) {
|
||||
var font = group.value.font;
|
||||
return buildGroup(group.value.body, options.withFont(font));
|
||||
};
|
||||
|
||||
groupTypes.delimsizing = function(group) {
|
||||
var children = [];
|
||||
|
||||
if (group.value.value !== ".") {
|
||||
children.push(makeText(group.value.value, group.mode));
|
||||
}
|
||||
|
||||
var node = new mathMLTree.MathNode("mo", children);
|
||||
|
||||
if (group.value.delimType === "open" ||
|
||||
group.value.delimType === "close") {
|
||||
// Only some of the delimsizing functions act as fences, and they
|
||||
// return "open" or "close" delimTypes.
|
||||
node.setAttribute("fence", "true");
|
||||
} else {
|
||||
// Explicitly disable fencing if it's not a fence, to override the
|
||||
// defaults.
|
||||
node.setAttribute("fence", "false");
|
||||
}
|
||||
|
||||
return node;
|
||||
};
|
||||
|
||||
groupTypes.styling = function(group, options) {
|
||||
var inner = buildExpression(group.value.value, options);
|
||||
|
||||
var node = new mathMLTree.MathNode("mstyle", inner);
|
||||
|
||||
var styleAttributes = {
|
||||
"display": ["0", "true"],
|
||||
"text": ["0", "false"],
|
||||
"script": ["1", "false"],
|
||||
"scriptscript": ["2", "false"]
|
||||
};
|
||||
|
||||
var attr = styleAttributes[group.value.style];
|
||||
|
||||
node.setAttribute("scriptlevel", attr[0]);
|
||||
node.setAttribute("displaystyle", attr[1]);
|
||||
|
||||
return node;
|
||||
};
|
||||
|
||||
groupTypes.sizing = function(group, options) {
|
||||
var inner = buildExpression(group.value.value, options);
|
||||
|
||||
var node = new mathMLTree.MathNode("mstyle", inner);
|
||||
|
||||
// TODO(emily): This doesn't produce the correct size for nested size
|
||||
// changes, because we don't keep state of what style we're currently
|
||||
// in, so we can't reset the size to normal before changing it. Now
|
||||
// that we're passing an options parameter we should be able to fix
|
||||
// this.
|
||||
node.setAttribute(
|
||||
"mathsize", buildCommon.sizingMultiplier[group.value.size] + "em");
|
||||
|
||||
return node;
|
||||
};
|
||||
|
||||
groupTypes.overline = function(group, options) {
|
||||
var operator = new mathMLTree.MathNode(
|
||||
"mo", [new mathMLTree.TextNode("\u203e")]);
|
||||
operator.setAttribute("stretchy", "true");
|
||||
|
||||
var node = new mathMLTree.MathNode(
|
||||
"mover",
|
||||
[buildGroup(group.value.body, options),
|
||||
operator]);
|
||||
node.setAttribute("accent", "true");
|
||||
|
||||
return node;
|
||||
};
|
||||
|
||||
groupTypes.rule = function(group) {
|
||||
// TODO(emily): Figure out if there's an actual way to draw black boxes
|
||||
// in MathML.
|
||||
var node = new mathMLTree.MathNode("mrow");
|
||||
|
||||
return node;
|
||||
};
|
||||
|
||||
groupTypes.llap = function(group, options) {
|
||||
var node = new mathMLTree.MathNode(
|
||||
"mpadded", [buildGroup(group.value.body, options)]);
|
||||
|
||||
node.setAttribute("lspace", "-1width");
|
||||
node.setAttribute("width", "0px");
|
||||
|
||||
return node;
|
||||
};
|
||||
|
||||
groupTypes.rlap = function(group, options) {
|
||||
var node = new mathMLTree.MathNode(
|
||||
"mpadded", [buildGroup(group.value.body, options)]);
|
||||
|
||||
node.setAttribute("width", "0px");
|
||||
|
||||
return node;
|
||||
};
|
||||
|
||||
groupTypes.phantom = function(group, options, prev) {
|
||||
var inner = buildExpression(group.value.value, options);
|
||||
return new mathMLTree.MathNode("mphantom", inner);
|
||||
};
|
||||
|
||||
/**
|
||||
|
||||
Reference in New Issue
Block a user