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- "use strict";
- var __read = (this && this.__read) || function (o, n) {
- var m = typeof Symbol === "function" && o[Symbol.iterator];
- if (!m) return o;
- var i = m.call(o), r, ar = [], e;
- try {
- while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
- }
- catch (error) { e = { error: error }; }
- finally {
- try {
- if (r && !r.done && (m = i["return"])) m.call(i);
- }
- finally { if (e) throw e.error; }
- }
- return ar;
- };
- var __values = (this && this.__values) || function(o) {
- var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
- if (m) return m.call(o);
- if (o && typeof o.length === "number") return {
- next: function () {
- if (o && i >= o.length) o = void 0;
- return { value: o && o[i++], done: !o };
- }
- };
- throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
- };
- var __importDefault = (this && this.__importDefault) || function (mod) {
- return (mod && mod.__esModule) ? mod : { "default": mod };
- };
- var _a;
- Object.defineProperty(exports, "__esModule", { value: true });
- exports.clearDocument = exports.saveDocument = exports.makeBsprAttributes = exports.removeProperty = exports.getProperty = exports.setProperty = exports.balanceRules = void 0;
- var NodeUtil_js_1 = __importDefault(require("../NodeUtil.js"));
- var ParseUtil_js_1 = __importDefault(require("../ParseUtil.js"));
- var doc = null;
- var item = null;
- var getBBox = function (node) {
- item.root = node;
- var width = doc.outputJax.getBBox(item, doc).w;
- return width;
- };
- var getRule = function (node) {
- var i = 0;
- while (node && !NodeUtil_js_1.default.isType(node, 'mtable')) {
- if (NodeUtil_js_1.default.isType(node, 'text')) {
- return null;
- }
- if (NodeUtil_js_1.default.isType(node, 'mrow')) {
- node = node.childNodes[0];
- i = 0;
- continue;
- }
- node = node.parent.childNodes[i];
- i++;
- }
- return node;
- };
- var getPremises = function (rule, direction) {
- return rule.childNodes[direction === 'up' ? 1 : 0].childNodes[0].
- childNodes[0].childNodes[0].childNodes[0];
- };
- var getPremise = function (premises, n) {
- return premises.childNodes[n].childNodes[0].childNodes[0];
- };
- var firstPremise = function (premises) {
- return getPremise(premises, 0);
- };
- var lastPremise = function (premises) {
- return getPremise(premises, premises.childNodes.length - 1);
- };
- var getConclusion = function (rule, direction) {
- return rule.childNodes[direction === 'up' ? 0 : 1].childNodes[0].childNodes[0].childNodes[0];
- };
- var getColumn = function (inf) {
- while (inf && !NodeUtil_js_1.default.isType(inf, 'mtd')) {
- inf = inf.parent;
- }
- return inf;
- };
- var nextSibling = function (inf) {
- return inf.parent.childNodes[inf.parent.childNodes.indexOf(inf) + 1];
- };
- var previousSibling = function (inf) {
- return inf.parent.childNodes[inf.parent.childNodes.indexOf(inf) - 1];
- };
- var getParentInf = function (inf) {
- while (inf && (0, exports.getProperty)(inf, 'inference') == null) {
- inf = inf.parent;
- }
- return inf;
- };
- var getSpaces = function (inf, rule, right) {
- if (right === void 0) { right = false; }
- var result = 0;
- if (inf === rule) {
- return result;
- }
- if (inf !== rule.parent) {
- var children_1 = inf.childNodes;
- var index_1 = right ? children_1.length - 1 : 0;
- if (NodeUtil_js_1.default.isType(children_1[index_1], 'mspace')) {
- result += getBBox(children_1[index_1]);
- }
- inf = rule.parent;
- }
- if (inf === rule) {
- return result;
- }
- var children = inf.childNodes;
- var index = right ? children.length - 1 : 0;
- if (children[index] !== rule) {
- result += getBBox(children[index]);
- }
- return result;
- };
- var adjustValue = function (inf, right) {
- if (right === void 0) { right = false; }
- var rule = getRule(inf);
- var conc = getConclusion(rule, (0, exports.getProperty)(rule, 'inferenceRule'));
- var w = getSpaces(inf, rule, right);
- var x = getBBox(rule);
- var y = getBBox(conc);
- return w + ((x - y) / 2);
- };
- var addSpace = function (config, inf, space, right) {
- if (right === void 0) { right = false; }
- if ((0, exports.getProperty)(inf, 'inferenceRule') ||
- (0, exports.getProperty)(inf, 'labelledRule')) {
- var mrow = config.nodeFactory.create('node', 'mrow');
- inf.parent.replaceChild(mrow, inf);
- mrow.setChildren([inf]);
- moveProperties(inf, mrow);
- inf = mrow;
- }
- var index = right ? inf.childNodes.length - 1 : 0;
- var mspace = inf.childNodes[index];
- if (NodeUtil_js_1.default.isType(mspace, 'mspace')) {
- NodeUtil_js_1.default.setAttribute(mspace, 'width', ParseUtil_js_1.default.Em(ParseUtil_js_1.default.dimen2em(NodeUtil_js_1.default.getAttribute(mspace, 'width')) + space));
- return;
- }
- mspace = config.nodeFactory.create('node', 'mspace', [], { width: ParseUtil_js_1.default.Em(space) });
- if (right) {
- inf.appendChild(mspace);
- return;
- }
- mspace.parent = inf;
- inf.childNodes.unshift(mspace);
- };
- var moveProperties = function (src, dest) {
- var props = ['inference', 'proof', 'maxAdjust', 'labelledRule'];
- props.forEach(function (x) {
- var value = (0, exports.getProperty)(src, x);
- if (value != null) {
- (0, exports.setProperty)(dest, x, value);
- (0, exports.removeProperty)(src, x);
- }
- });
- };
- var adjustSequents = function (config) {
- var sequents = config.nodeLists['sequent'];
- if (!sequents) {
- return;
- }
- for (var i = sequents.length - 1, seq = void 0; seq = sequents[i]; i--) {
- if ((0, exports.getProperty)(seq, 'sequentProcessed')) {
- (0, exports.removeProperty)(seq, 'sequentProcessed');
- continue;
- }
- var collect = [];
- var inf = getParentInf(seq);
- if ((0, exports.getProperty)(inf, 'inference') !== 1) {
- continue;
- }
- collect.push(seq);
- while ((0, exports.getProperty)(inf, 'inference') === 1) {
- inf = getRule(inf);
- var premise = firstPremise(getPremises(inf, (0, exports.getProperty)(inf, 'inferenceRule')));
- var sequent = ((0, exports.getProperty)(premise, 'inferenceRule')) ?
- getConclusion(premise, (0, exports.getProperty)(premise, 'inferenceRule')) :
- premise;
- if ((0, exports.getProperty)(sequent, 'sequent')) {
- seq = sequent.childNodes[0];
- collect.push(seq);
- (0, exports.setProperty)(seq, 'sequentProcessed', true);
- }
- inf = premise;
- }
- adjustSequentPairwise(config, collect);
- }
- };
- var addSequentSpace = function (config, sequent, position, direction, width) {
- var mspace = config.nodeFactory.create('node', 'mspace', [], { width: ParseUtil_js_1.default.Em(width) });
- if (direction === 'left') {
- var row = sequent.childNodes[position].childNodes[0];
- mspace.parent = row;
- row.childNodes.unshift(mspace);
- }
- else {
- sequent.childNodes[position].appendChild(mspace);
- }
- (0, exports.setProperty)(sequent.parent, 'sequentAdjust_' + direction, width);
- };
- var adjustSequentPairwise = function (config, sequents) {
- var top = sequents.pop();
- while (sequents.length) {
- var bottom = sequents.pop();
- var _a = __read(compareSequents(top, bottom), 2), left = _a[0], right = _a[1];
- if ((0, exports.getProperty)(top.parent, 'axiom')) {
- addSequentSpace(config, left < 0 ? top : bottom, 0, 'left', Math.abs(left));
- addSequentSpace(config, right < 0 ? top : bottom, 2, 'right', Math.abs(right));
- }
- top = bottom;
- }
- };
- var compareSequents = function (top, bottom) {
- var tr = getBBox(top.childNodes[2]);
- var br = getBBox(bottom.childNodes[2]);
- var tl = getBBox(top.childNodes[0]);
- var bl = getBBox(bottom.childNodes[0]);
- var dl = tl - bl;
- var dr = tr - br;
- return [dl, dr];
- };
- var balanceRules = function (arg) {
- var e_1, _a;
- item = new arg.document.options.MathItem('', null, arg.math.display);
- var config = arg.data;
- adjustSequents(config);
- var inferences = config.nodeLists['inference'] || [];
- try {
- for (var inferences_1 = __values(inferences), inferences_1_1 = inferences_1.next(); !inferences_1_1.done; inferences_1_1 = inferences_1.next()) {
- var inf = inferences_1_1.value;
- var isProof = (0, exports.getProperty)(inf, 'proof');
- var rule = getRule(inf);
- var premises = getPremises(rule, (0, exports.getProperty)(rule, 'inferenceRule'));
- var premiseF = firstPremise(premises);
- if ((0, exports.getProperty)(premiseF, 'inference')) {
- var adjust_1 = adjustValue(premiseF);
- if (adjust_1) {
- addSpace(config, premiseF, -adjust_1);
- var w_1 = getSpaces(inf, rule, false);
- addSpace(config, inf, adjust_1 - w_1);
- }
- }
- var premiseL = lastPremise(premises);
- if ((0, exports.getProperty)(premiseL, 'inference') == null) {
- continue;
- }
- var adjust = adjustValue(premiseL, true);
- addSpace(config, premiseL, -adjust, true);
- var w = getSpaces(inf, rule, true);
- var maxAdjust = (0, exports.getProperty)(inf, 'maxAdjust');
- if (maxAdjust != null) {
- adjust = Math.max(adjust, maxAdjust);
- }
- var column = void 0;
- if (isProof || !(column = getColumn(inf))) {
- addSpace(config, (0, exports.getProperty)(inf, 'proof') ? inf : inf.parent, adjust - w, true);
- continue;
- }
- var sibling = nextSibling(column);
- if (sibling) {
- var pos = config.nodeFactory.create('node', 'mspace', [], { width: adjust - w + 'em' });
- sibling.appendChild(pos);
- inf.removeProperty('maxAdjust');
- continue;
- }
- var parentRule = getParentInf(column);
- if (!parentRule) {
- continue;
- }
- adjust = (0, exports.getProperty)(parentRule, 'maxAdjust') ?
- Math.max((0, exports.getProperty)(parentRule, 'maxAdjust'), adjust) : adjust;
- (0, exports.setProperty)(parentRule, 'maxAdjust', adjust);
- }
- }
- catch (e_1_1) { e_1 = { error: e_1_1 }; }
- finally {
- try {
- if (inferences_1_1 && !inferences_1_1.done && (_a = inferences_1.return)) _a.call(inferences_1);
- }
- finally { if (e_1) throw e_1.error; }
- }
- };
- exports.balanceRules = balanceRules;
- var property_prefix = 'bspr_';
- var blacklistedProperties = (_a = {},
- _a[property_prefix + 'maxAdjust'] = true,
- _a);
- var setProperty = function (node, property, value) {
- NodeUtil_js_1.default.setProperty(node, property_prefix + property, value);
- };
- exports.setProperty = setProperty;
- var getProperty = function (node, property) {
- return NodeUtil_js_1.default.getProperty(node, property_prefix + property);
- };
- exports.getProperty = getProperty;
- var removeProperty = function (node, property) {
- node.removeProperty(property_prefix + property);
- };
- exports.removeProperty = removeProperty;
- var makeBsprAttributes = function (arg) {
- arg.data.root.walkTree(function (mml, _data) {
- var attr = [];
- mml.getPropertyNames().forEach(function (x) {
- if (!blacklistedProperties[x] && x.match(RegExp('^' + property_prefix))) {
- attr.push(x + ':' + mml.getProperty(x));
- }
- });
- if (attr.length) {
- NodeUtil_js_1.default.setAttribute(mml, 'semantics', attr.join(';'));
- }
- });
- };
- exports.makeBsprAttributes = makeBsprAttributes;
- var saveDocument = function (arg) {
- doc = arg.document;
- if (!('getBBox' in doc.outputJax)) {
- throw Error('The bussproofs extension requires an output jax with a getBBox() method');
- }
- };
- exports.saveDocument = saveDocument;
- var clearDocument = function (_arg) {
- doc = null;
- };
- exports.clearDocument = clearDocument;
- //# sourceMappingURL=BussproofsUtil.js.map
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