diff --git a/lib/sequence-diagram.js b/lib/sequence-diagram.js
index 09cc14d..52bfb8d 100644
--- a/lib/sequence-diagram.js
+++ b/lib/sequence-diagram.js
@@ -3969,8 +3969,8 @@ define('sequence/components/Connect',[
 ) => {
 	'use strict';
 
-	function drawHorizontalArrowHead(container, {x, y, dx, dy, attrs}) {
-		container.appendChild(svg.make(
+	function drawHorizontalArrowHead({x, y, dx, dy, attrs}) {
+		return svg.make(
 			attrs.fill === 'none' ? 'polyline' : 'polygon',
 			Object.assign({
 				'points': (
@@ -3979,7 +3979,7 @@ define('sequence/components/Connect',[
 					(x + dx) + ' ' + (y + dy)
 				),
 			}, attrs)
-		));
+		);
 	}
 
 	class Arrowhead {
@@ -4006,15 +4006,16 @@ define('sequence/components/Connect',[
 			}
 		}
 
-		render(layer, theme, {x, y, dir}) {
+		render(layer, theme, pt, dir) {
 			const config = this.getConfig(theme);
-			drawHorizontalArrowHead(layer, {
-				x: x + this.short(theme) * dir,
-				y,
+			const func = config.render || drawHorizontalArrowHead;
+			layer.appendChild(func({
+				x: pt.x + this.short(theme) * dir,
+				y: pt.y,
 				dx: config.width * dir,
 				dy: config.height / 2,
 				attrs: config.attrs,
-			});
+			}));
 		}
 
 		width(theme) {
@@ -4063,91 +4064,99 @@ define('sequence/components/Connect',[
 		];
 	}
 
-	class ConnectingLine {
-		renderFlat(container, {x1, x2, y}, attrs) {
-			const ww = attrs['wave-width'];
-			const hh = attrs['wave-height'];
+	function renderFlat({x1, dx1, x2, dx2, y}, attrs) {
+		const ww = attrs['wave-width'];
+		const hh = attrs['wave-height'];
 
-			if(!ww || !hh) {
-				container.appendChild(svg.make('line', Object.assign({
-					'x1': x1,
+		if(!ww || !hh) {
+			return {
+				shape: svg.make('line', Object.assign({
+					'x1': x1 + dx1,
 					'y1': y,
-					'x2': x2,
+					'x2': x2 + dx2,
 					'y2': y,
-				}, attrs)));
-				return;
-			}
-
-			const heights = makeWavyLineHeights(hh);
-			const dw = ww / heights.length;
-			let p = 0;
-
-			let points = '';
-			for(let x = x1; x + dw <= x2; x += dw) {
-				points += (
-					x + ' ' +
-					(y + heights[(p ++) % heights.length]) + ' '
-				);
-			}
-			points += x2 + ' ' + y;
-			container.appendChild(svg.make('polyline', Object.assign({
-				points,
-			}, attrs)));
+				}, attrs)),
+				p1: {x: x1, y},
+				p2: {x: x2, y},
+			};
 		}
 
-		renderRev(container, {xL1, xL2, y1, y2, xR}, attrs) {
-			const r = (y2 - y1) / 2;
-			const ww = attrs['wave-width'];
-			const hh = attrs['wave-height'];
+		const heights = makeWavyLineHeights(hh);
+		const dw = ww / heights.length;
+		let p = 0;
 
-			if(!ww || !hh) {
-				container.appendChild(svg.make('path', Object.assign({
-					'd': (
-						'M' + xL1 + ' ' + y1 +
-						'L' + xR + ' ' + y1 +
-						'A' + r + ' ' + r + ' 0 0 1 ' + xR + ' ' + y2 +
-						'L' + xL2 + ' ' + y2
-					),
-				}, attrs)));
-				return;
-			}
-
-			const heights = makeWavyLineHeights(hh);
-			const dw = ww / heights.length;
-			let p = 0;
-
-			let points = '';
-			for(let x = xL1; x + dw <= xR; x += dw) {
-				points += (
-					x + ' ' +
-					(y1 + heights[(p ++) % heights.length]) + ' '
-				);
-			}
-
-			const ym = (y1 + y2) / 2;
-			for(let t = 0; t + dw / r <= Math.PI; t += dw / r) {
-				const h = heights[(p ++) % heights.length];
-				points += (
-					(xR + Math.sin(t) * (r - h)) + ' ' +
-					(ym - Math.cos(t) * (r - h)) + ' '
-				);
-			}
-
-			for(let x = xR; x - dw >= xL2; x -= dw) {
-				points += (
-					x + ' ' +
-					(y2 - heights[(p ++) % heights.length]) + ' '
-				);
-			}
-
-			points += xL2 + ' ' + y2;
-			container.appendChild(svg.make('polyline', Object.assign({
-				points,
-			}, attrs)));
+		let points = '';
+		const xL = Math.min(x1 + dx1, x2 + dx2);
+		const xR = Math.max(x1 + dx1, x2 + dx2);
+		for(let x = xL; x + dw <= xR; x += dw) {
+			points += (
+				x + ' ' +
+				(y + heights[(p ++) % heights.length]) + ' '
+			);
 		}
+		points += xR + ' ' + y;
+		return {
+			shape: svg.make('polyline', Object.assign({points}, attrs)),
+			p1: {x: x1, y},
+			p2: {x: x2, y},
+		};
 	}
 
-	const CONNECTING_LINE = new ConnectingLine();
+	function renderRev({xL, dx1, dx2, y1, y2, xR}, attrs) {
+		const r = (y2 - y1) / 2;
+		const ww = attrs['wave-width'];
+		const hh = attrs['wave-height'];
+
+		if(!ww || !hh) {
+			return {
+				shape: svg.make('path', Object.assign({
+					'd': (
+						'M' + (xL + dx1) + ' ' + y1 +
+						'L' + xR + ' ' + y1 +
+						'A' + r + ' ' + r + ' 0 0 1 ' + xR + ' ' + y2 +
+						'L' + (xL + dx2) + ' ' + y2
+					),
+				}, attrs)),
+				p1: {x: xL, y: y1},
+				p2: {x: xL, y: y2},
+			};
+		}
+
+		const heights = makeWavyLineHeights(hh);
+		const dw = ww / heights.length;
+		let p = 0;
+
+		let points = '';
+		for(let x = xL + dx1; x + dw <= xR; x += dw) {
+			points += (
+				x + ' ' +
+				(y1 + heights[(p ++) % heights.length]) + ' '
+			);
+		}
+
+		const ym = (y1 + y2) / 2;
+		for(let t = 0; t + dw / r <= Math.PI; t += dw / r) {
+			const h = heights[(p ++) % heights.length];
+			points += (
+				(xR + Math.sin(t) * (r - h)) + ' ' +
+				(ym - Math.cos(t) * (r - h)) + ' '
+			);
+		}
+
+		for(let x = xR; x - dw >= xL + dx2; x -= dw) {
+			points += (
+				x + ' ' +
+				(y2 - heights[(p ++) % heights.length]) + ' '
+			);
+		}
+
+		points += (xL + dx2) + ' ' + y2;
+		return {
+			shape: svg.make('polyline', Object.assign({points}, attrs)),
+			p1: {x: xL, y: y1},
+			p2: {x: xL, y: y2},
+		};
+	}
 
 	class Connect extends BaseComponent {
 		separation({label, agentNames, options}, env) {
@@ -4237,17 +4246,19 @@ define('sequence/components/Connect',[
 			const x1 = Math.max(lineX + rArrow.width(env.theme), x0 + labelW);
 			const y1 = y0 + r * 2;
 
-			const lineAttrs = config.lineAttrs[options.line];
-			CONNECTING_LINE.renderRev(env.shapeLayer, {
-				xL1: lineX + lArrow.lineGap(env.theme, lineAttrs),
-				xL2: lineX + rArrow.lineGap(env.theme, lineAttrs),
+			const line = config.line[options.line];
+			const rendered = (line.renderRev || renderRev)({
+				xL: lineX,
+				dx1: lArrow.lineGap(env.theme, line.attrs),
+				dx2: rArrow.lineGap(env.theme, line.attrs),
 				y1: y0,
 				y2: y1,
 				xR: x1,
-			}, lineAttrs);
+			}, line.attrs);
+			env.shapeLayer.appendChild(rendered.shape);
 
-			lArrow.render(env.shapeLayer, env.theme, {x: lineX, y: y0, dir: 1});
-			rArrow.render(env.shapeLayer, env.theme, {x: lineX, y: y1, dir: 1});
+			lArrow.render(env.shapeLayer, env.theme, rendered.p1, 1);
+			rArrow.render(env.shapeLayer, env.theme, rendered.p2, 1);
 
 			const raise = Math.max(height, lArrow.height(env.theme) / 2);
 			const arrowDip = rArrow.height(env.theme) / 2;
@@ -4299,15 +4310,18 @@ define('sequence/components/Connect',[
 				SVGTextBlockClass: env.SVGTextBlockClass,
 			});
 
-			const lineAttrs = config.lineAttrs[options.line];
-			CONNECTING_LINE.renderFlat(env.shapeLayer, {
-				x1: x0 + lArrow.lineGap(env.theme, lineAttrs) * dir,
-				x2: x1 - rArrow.lineGap(env.theme, lineAttrs) * dir,
+			const line = config.line[options.line];
+			const rendered = (line.render || renderFlat)({
+				x1: x0,
+				dx1: lArrow.lineGap(env.theme, line.attrs) * dir,
+				x2: x1,
+				dx2: -rArrow.lineGap(env.theme, line.attrs) * dir,
 				y,
-			}, lineAttrs);
+			}, line.attrs);
+			env.shapeLayer.appendChild(rendered.shape);
 
-			lArrow.render(env.shapeLayer, env.theme, {x: x0, y, dir});
-			rArrow.render(env.shapeLayer, env.theme, {x: x1, y, dir: -dir});
+			lArrow.render(env.shapeLayer, env.theme, rendered.p1, dir);
+			rArrow.render(env.shapeLayer, env.theme, rendered.p2, -dir);
 
 			const arrowSpread = Math.max(
 				lArrow.height(env.theme),
@@ -5344,30 +5358,36 @@ define('sequence/themes/Basic',[
 
 		connect: {
 			loopbackRadius: 6,
-			lineAttrs: {
+			line: {
 				'solid': {
-					'fill': 'none',
-					'stroke': '#000000',
-					'stroke-width': 1,
+					attrs: {
+						'fill': 'none',
+						'stroke': '#000000',
+						'stroke-width': 1,
+					},
 				},
 				'dash': {
-					'fill': 'none',
-					'stroke': '#000000',
-					'stroke-width': 1,
-					'stroke-dasharray': '4, 2',
+					attrs: {
+						'fill': 'none',
+						'stroke': '#000000',
+						'stroke-width': 1,
+						'stroke-dasharray': '4, 2',
+					},
 				},
 				'wave': {
-					'fill': 'none',
-					'stroke': '#000000',
-					'stroke-width': 1,
-					'stroke-linejoin': 'round',
-					'stroke-linecap': 'round',
-					'wave-width': 6,
-					'wave-height': 0.5,
+					attrs: {
+						'fill': 'none',
+						'stroke': '#000000',
+						'stroke-width': 1,
+						'stroke-linejoin': 'round',
+						'stroke-linecap': 'round',
+						'wave-width': 6,
+						'wave-height': 0.5,
+					},
 				},
 			},
 			arrow: {
-				single: {
+				'single': {
 					width: 5,
 					height: 10,
 					attrs: {
@@ -5376,7 +5396,7 @@ define('sequence/themes/Basic',[
 						'stroke-linejoin': 'miter',
 					},
 				},
-				double: {
+				'double': {
 					width: 4,
 					height: 6,
 					attrs: {
@@ -5684,26 +5704,32 @@ define('sequence/themes/Chunky',[
 
 		connect: {
 			loopbackRadius: 8,
-			lineAttrs: {
+			line: {
 				'solid': {
-					'fill': 'none',
-					'stroke': '#000000',
-					'stroke-width': 3,
+					attrs: {
+						'fill': 'none',
+						'stroke': '#000000',
+						'stroke-width': 3,
+					},
 				},
 				'dash': {
-					'fill': 'none',
-					'stroke': '#000000',
-					'stroke-width': 3,
-					'stroke-dasharray': '10, 4',
+					attrs: {
+						'fill': 'none',
+						'stroke': '#000000',
+						'stroke-width': 3,
+						'stroke-dasharray': '10, 4',
+					},
 				},
 				'wave': {
-					'fill': 'none',
-					'stroke': '#000000',
-					'stroke-width': 3,
-					'stroke-linejoin': 'round',
-					'stroke-linecap': 'round',
-					'wave-width': 10,
-					'wave-height': 1,
+					attrs: {
+						'fill': 'none',
+						'stroke': '#000000',
+						'stroke-width': 3,
+						'stroke-linejoin': 'round',
+						'stroke-linecap': 'round',
+						'wave-width': 10,
+						'wave-height': 1,
+					},
 				},
 			},
 			arrow: {
@@ -6386,7 +6412,6 @@ define('sequence/themes/Sketch',[
 	'use strict';
 
 	// TODO:
-	// * arrows
 	// * fade starter/terminator sometimes does not fully cover line
 	// * blocks (if/else/repeat/ref)
 
@@ -6407,6 +6432,13 @@ define('sequence/themes/Sketch',[
 		return r;
 	}
 
+	const PENCIL = {
+		'stroke': 'rgba(0,0,0,0.7)',
+		'stroke-width': 0.8,
+		'stroke-linejoin': 'round',
+		'stroke-linecap': 'round',
+	};
+
 	const SETTINGS = {
 		titleMargin: 10,
 		outerMargin: 5,
@@ -6451,47 +6483,50 @@ define('sequence/themes/Sketch',[
 
 		connect: {
 			loopbackRadius: 6,
-			lineAttrs: {
+			line: {
 				'solid': {
-					'fill': 'none',
-					'stroke': '#000000',
-					'stroke-width': 1,
+					attrs: Object.assign({
+						'fill': 'none',
+					}, PENCIL),
+					render: null,
+					renderRev: null,
 				},
 				'dash': {
-					'fill': 'none',
-					'stroke': '#000000',
-					'stroke-width': 1,
-					'stroke-dasharray': '4, 2',
+					attrs: Object.assign({
+						'fill': 'none',
+						'stroke-dasharray': '4, 2',
+					}, PENCIL),
+					render: null,
+					renderRev: null,
 				},
 				'wave': {
-					'fill': 'none',
-					'stroke': '#000000',
-					'stroke-width': 1,
-					'stroke-linejoin': 'round',
-					'stroke-linecap': 'round',
-					'wave-width': 6,
-					'wave-height': 0.5,
+					attrs: Object.assign({
+						'fill': 'none',
+						'stroke-linejoin': 'round',
+						'stroke-linecap': 'round',
+						'wave-width': 6,
+						'wave-height': 0.5,
+					}, PENCIL),
+					render: null,
+					renderRev: null,
 				},
 			},
 			arrow: {
-				single: {
+				'single': {
 					width: 5,
-					height: 10,
-					attrs: {
-						'fill': '#000000',
-						'stroke-width': 0,
-						'stroke-linejoin': 'miter',
-					},
-				},
-				double: {
-					width: 4,
 					height: 6,
-					attrs: {
+					attrs: Object.assign({
+						'fill': 'rgba(0,0,0,0.9)',
+					}, PENCIL),
+					render: null,
+				},
+				'double': {
+					width: 4,
+					height: 8,
+					attrs: Object.assign({
 						'fill': 'none',
-						'stroke': '#000000',
-						'stroke-width': 1,
-						'stroke-linejoin': 'miter',
-					},
+					}, PENCIL),
+					render: null,
 				},
 			},
 			label: {
@@ -6704,6 +6739,10 @@ define('sequence/themes/Sketch',[
 			this.agentCap.cross.render = this.renderCross.bind(this);
 			this.agentCap.bar.render = this.renderBar.bind(this);
 			this.agentCap.box.boxRenderer = this.renderBox.bind(this);
+			this.connect.arrow.single.render = this.renderArrowHead.bind(this);
+			this.connect.arrow.double.render = this.renderArrowHead.bind(this);
+			this.connect.line.solid.render = this.renderConnect.bind(this);
+			this.connect.line.dash.render = this.renderConnect.bind(this);
 			this.notes.note.boxRenderer = this.renderNote.bind(this);
 			this.notes.state.boxRenderer = this.renderState.bind(this);
 		}
@@ -6748,16 +6787,22 @@ define('sequence/themes/Sketch',[
 			return Math.asin(rand * 2 - 1) * 2 * range / Math.PI;
 		}
 
-		lineNodes(p1, p2, {var1 = 1, var2 = 1, move = true}) {
+		lineNodes(p1, p2, {
+			var1 = 1,
+			var2 = 1,
+			varX = 1,
+			varY = 1,
+			move = true,
+		}) {
 			const length = Math.sqrt(
 				(p2.x - p1.x) * (p2.x - p1.x) +
 				(p2.y - p1.y) * (p2.y - p1.y)
 			);
 			const rough = Math.min(Math.sqrt(length) * 0.2, 5);
-			const x1 = p1.x + this.vary(var1 * rough);
-			const y1 = p1.y + this.vary(var1 * rough);
-			const x2 = p2.x + this.vary(var2 * rough);
-			const y2 = p2.y + this.vary(var2 * rough);
+			const x1 = p1.x + this.vary(var1 * varX * rough);
+			const y1 = p1.y + this.vary(var1 * varY * rough);
+			const x2 = p2.x + this.vary(var2 * varX * rough);
+			const y2 = p2.y + this.vary(var2 * varY * rough);
 
 			// -1 = p1 higher, 1 = p2 higher
 			const upper = Math.max(-1, Math.min(1,
@@ -6784,14 +6829,12 @@ define('sequence/themes/Sketch',[
 			};
 		}
 
-		renderLine(p1, p2, {var1 = 1, var2 = 1}) {
-			const line = this.lineNodes(p1, p2, {var1, var2});
-			const shape = svg.make('path', {
+		renderLine(p1, p2, lineOptions) {
+			const line = this.lineNodes(p1, p2, lineOptions);
+			const shape = svg.make('path', Object.assign({
 				'd': line.nodes,
-				'stroke': 'rgba(0,0,0,0.7)',
-				'stroke-width': 0.8,
 				'fill': 'none',
-			});
+			}, PENCIL));
 			return shape;
 		}
 
@@ -6817,12 +6860,10 @@ define('sequence/themes/Sketch',[
 				{var1: 0, var2: 0.3, move: false}
 			);
 
-			const shape = svg.make('path', {
+			const shape = svg.make('path', Object.assign({
 				'd': lT.nodes + lR.nodes + lB.nodes + lL.nodes,
-				'stroke': 'rgba(0,0,0,0.7)',
-				'stroke-width': 0.8,
 				'fill': fill || '#FFFFFF',
-			});
+			}, PENCIL));
 
 			return shape;
 		}
@@ -6866,7 +6907,7 @@ define('sequence/themes/Sketch',[
 			);
 
 			const g = svg.make('g');
-			g.appendChild(svg.make('path', {
+			g.appendChild(svg.make('path', Object.assign({
 				'd': (
 					lT.nodes +
 					lF.nodes +
@@ -6874,20 +6915,52 @@ define('sequence/themes/Sketch',[
 					lB.nodes +
 					lL.nodes
 				),
-				'stroke': 'rgba(0,0,0,0.7)',
-				'stroke-width': 0.8,
 				'fill': '#FFFFFF',
-			}));
-			g.appendChild(svg.make('path', {
+			}, PENCIL)));
+			g.appendChild(svg.make('path', Object.assign({
 				'd': lF1.nodes + lF2.nodes,
-				'stroke': 'rgba(0,0,0,0.7)',
-				'stroke-width': 0.8,
 				'fill': 'none',
-			}));
+			}, PENCIL)));
 
 			return g;
 		}
 
+		renderConnect({x1, dx1, x2, dx2, y}, attrs) {
+			const ln = this.lineNodes(
+				{x: x1 + dx1, y},
+				{x: x2 + dx2, y},
+				{varX: 0.3}
+			);
+			return {
+				shape: svg.make('path', Object.assign({'d': ln.nodes}, attrs)),
+				p1: {x: ln.p1.x - dx1, y: ln.p2.y},
+				p2: {x: ln.p2.x - dx2, y: ln.p2.y},
+			};
+		}
+
+		renderArrowHead({x, y, dx, dy, attrs}) {
+			const w = dx * (1 + this.vary(0.2));
+			const h = dy * (1 + this.vary(0.3));
+			const l1 = this.lineNodes(
+				{x: x + w, y: y - h},
+				{x, y},
+				{var1: 2.0, var2: 0.2}
+			);
+			const l2 = this.lineNodes(
+				l1.p2,
+				{x: x + w, y: y + h},
+				{var1: 0, var2: 2.0, move: false}
+			);
+			const l3 = (attrs.fill === 'none') ? {nodes: ''} : this.lineNodes(
+				l2.p2,
+				l1.p1,
+				{var1: 0, var2: 0, move: false}
+			);
+			return svg.make('path', Object.assign({
+				'd': l1.nodes + l2.nodes + l3.nodes,
+			}, attrs));
+		}
+
 		renderState({x, y, width, height}) {
 			// TODO: rounded corners
 			return this.renderBox({x, y, width, height});
@@ -6911,12 +6984,10 @@ define('sequence/themes/Sketch',[
 				{}
 			);
 
-			return svg.make('path', {
+			return svg.make('path', Object.assign({
 				'd': l1.nodes + l2.nodes,
-				'stroke': 'rgba(0,0,0,0.7)',
-				'stroke-width': 0.8,
 				'fill': 'none',
-			});
+			}, PENCIL));
 		}
 
 		getNote(type) {
@@ -6937,7 +7008,7 @@ define('sequence/themes/Sketch',[
 				const shape = this.renderLine(
 					{x, y: y0},
 					{x, y: y1},
-					{}
+					{varY: 0.3}
 				);
 				shape.setAttribute('class', className);
 				container.appendChild(shape);
diff --git a/lib/sequence-diagram.min.js b/lib/sequence-diagram.min.js
index 418d410..ee7b527 100644
--- a/lib/sequence-diagram.min.js
+++ b/lib/sequence-diagram.min.js
@@ -1 +1 @@
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t=e.combine([[{tok:"",type:0},{tok:"<",type:1},{tok:"<<",type:2}],[{tok:"-",type:"solid"},{tok:"--",type:"dash"},{tok:"~",type:"wave"}],[{tok:"",type:0},{tok:">",type:1},{tok:">>",type:2}]]).filter(e=>0!==e[0].type||0!==e[2].type),n=new Map;return t.forEach(e=>{n.set(e.map(e=>e.tok).join(""),{line:e[1].type,left:e[0].type,right:e[2].type})}),n})(),p={"*":"begin","+":"start","-":"stop","!":"end"},m=["none","box","cross","fade","bar"],f={text:{mode:"text",types:{left:{type:"note left",skip:["of"],min:0,max:null},right:{type:"note right",skip:["of"],min:0,max:null}}},note:{mode:"note",types:{over:{type:"note over",skip:[],min:0,max:null},left:{type:"note left",skip:["of"],min:0,max:null},right:{type:"note right",skip:["of"],min:0,max:null},between:{type:"note between",skip:[],min:2,max:null}}},state:{mode:"state",types:{over:{type:"note over",skip:[],min:1,max:1}}}},b={define:{type:"agent define"},begin:{type:"agent begin",mode:"box"},end:{type:"agent end",mode:"cross"}},y=[(e,t)=>"title"!==a(e[0])?null:(t.title=r(e,1),!0),(e,t)=>"theme"!==a(e[0])?null:(t.theme=r(e,1),!0),(e,t)=>{if("terminators"!==a(e[0]))return null;const n=a(e[1]);if(!n)throw i("Unspecified termination",e[0]);if(-1===m.indexOf(n))throw i('Unknown termination "'+n+'"',e[1]);return t.terminators=n,!0},(e,t)=>{if("headers"!==a(e[0]))return null;const n=a(e[1]);if(!n)throw i("Unspecified header",e[0]);if(-1===m.indexOf(n))throw i('Unknown header "'+n+'"',e[1]);return t.headers=n,!0},e=>{if("autolabel"!==a(e[0]))return null;let t=null;return t="off"===a(e[1])?"<label>":r(e,1),{type:"label pattern",pattern:n(t)}},e=>{if("end"===a(e[0])&&1===e.length)return{type:"block end"};const t=c[a(e[0])];if(!t)return null;let n=1;return e.length>n&&(n=o(e,n,t.skip,"Invalid block command")),n=o(e,n,[":"]),{type:t.type,mode:t.mode,label:r(e,n)}},e=>{if("begin"!==a(e[0])||"reference"!==a(e[1]))return null;let t=[];const n=h(e,":");if("over"===a(e[2])&&n>3)t=d(e,3,n);else if(2!==n)throw i('Expected ":" or "over"',e[2]);const s=g(e,n+1,e.length,{aliases:!0});if(!s.alias)throw i("Reference must have an alias",e[n]);return{type:"group begin",agents:t,mode:"ref",label:s.name,alias:s.alias}},e=>{const t=b[a(e[0])];return!t||e.length<=1?null:Object.assign({agents:d(e,1,e.length,{aliases:!0})},t)},t=>{if("simultaneously"!==a(t[0]))return null;if(":"!==a(e.last(t)))return null;let n="";if(t.length>2){if("with"!==a(t[1]))return null;n=r(t,2,t.length-1)}return{type:"async",target:n}},e=>{const t=f[a(e[0])],n=h(e,":");if(!t||-1===n)return null;const s=t.types[a(e[1])];if(!s)return null;let l=2;const g=d(e,l=o(e,l,s.skip),n);if(g.length<s.min)throw i("Too few agents for "+t.mode,e[0]);if(null!==s.max&&g.length>s.max)throw i("Too many agents for "+t.mode,e[0]);return{type:s.type,agents:g,mode:t.mode,label:r(e,n+1)}},e=>{let t=h(e,":");-1===t&&(t=e.length);let n=-1,s=null;for(let t=0;t<e.length;++t){const i=u.get(a(e[t]));if(i){n=t,s=i;break}}if(n<=0||n>=t-1)return null;const i={flagTypes:p};return{type:"connect",agents:[g(e,0,n,i),g(e,n+1,t,i)],label:r(e,t+1),options:s}},t=>t.length<2||":"!==a(e.last(t))?null:{type:"mark",name:r(t,0,t.length-1)}],x=new t;return class{getCodeMirrorMode(){return x.getCodeMirrorMode(Array.from(u.keys()))}getCodeMirrorHints(){return s.getHints}parseLines(e){const t={meta:{title:"",theme:"",terminators:"none",headers:"box"},stages:[]};return e.forEach(e=>(function(e,{meta:t,stages:n}){let s=null;for(let n=0;n<y.length&&!(s=y[n](e,t));++n);if(!s)throw i("Unrecognised command: "+r(e),e[0]);"object"==typeof s&&(s.ln=e[0].b.ln,n.push(s))})(e,t)),t}parse(e){const t=x.tokenise(e),n=x.splitLines(t);return this.parseLines(n)}}}),n("sequence/Generator",["core/ArrayUtilities"],e=>{"use strict";function t(e,t){const n=c[e.type];return!(!n||e.type!==t.type)&&!n.check.some(n=>e[n]!==t[n])}function n(t,n){c[t.type].merge.forEach(s=>{e.mergeSets(t[s],n[s])})}function s(e,t){for(let n=0;n<e.length;){t(e[n],n)?e.splice(n,1):++n}}function i(e){s(e,(s,i)=>{for(let r=0;r<i;++r)if(t(e[r],s))return n(e[r],s),!0;return!1})}function r(e){const t=new Set,n=e.map(({type:e})=>e);return n.forEach(e=>{const s=c[e];s&&n.every(t=>e===t||s.siblings.has(t))&&t.add(e)}),t}function a(e,i,r,a){s(a,s=>{if(!e.has(s.type)||!i.has(s.type))return!1;for(let e=0;e<r.length;++e)if(t(r[e],s))return n(r[e],s),!0;return!1})}function o(e){let t=[],n=new Set;for(let s=0;s<e.length;){const o=e[s];let h=null;i(h="parallel"===o.type?o.stages:[o]);const l=r(h);a(n,l,t,h),n=l,t=h,0===h.length?e.splice(s,1):"parallel"===o.type&&1===h.length?(e.splice(s,1,h[0]),++s):++s}}function h(e,t){if("agent begin"===e.type)return e.mode=t,!0;if("parallel"===e.type){let n=!1;return e.stages.forEach(e=>{"agent begin"===e.type&&(e.mode=t,n=!0)}),n}return!1}function l(t,n,s,i=null){e.remove(t,n,d.equals),e.remove(t,s,d.equals);let r=0,a=t.length;if(i){const n=i.map(n=>e.indexOf(t,n,d.equals)).filter(e=>-1!==e);r=n.reduce((e,t)=>Math.min(e,t),t.length),a=n.reduce((e,t)=>Math.max(e,t),r)+1}return t.splice(r,0,n),t.splice(a+1,0,s),{indexL:r,indexR:a+1}}class g{constructor({visible:e=!1,locked:t=!1,blocked:n=!1,highlighted:s=!1,group:i=null,covered:r=!1}={}){this.visible=e,this.locked=t,this.blocked=n,this.highlighted=s,this.group=i,this.covered=r}}g.LOCKED=new g({locked:!0}),g.DEFAULT=new g;const d={equals:(e,t)=>e.name===t.name,make:(e,{anchorRight:t=!1}={})=>({name:e,anchorRight:t}),getName:e=>e.name,hasFlag:(e,t=!0)=>n=>n.flags.includes(e)===t},c={"agent begin":{check:["mode"],merge:["agentNames"],siblings:new Set(["agent highlight"])},"agent end":{check:["mode"],merge:["agentNames"],siblings:new Set(["agent highlight"])},"agent highlight":{check:["highlighted"],merge:["agentNames"],siblings:new Set(["agent begin","agent end"])}},u={"note over":[{name:"[",flags:[]},{name:"]",flags:[]}],"note left":[{name:"[",flags:[]}],"note right":[{name:"]",flags:[]}]};return class{constructor(){this.agentStates=new Map,this.agentAliases=new Map,this.activeGroups=new Map,this.agents=[],this.labelPattern=null,this.blockCount=0,this.nesting=[],this.markers=new Set,this.currentSection=null,this.currentNest=null,this.stageHandlers={"block begin":this.handleBlockBegin.bind(this),"block split":this.handleBlockSplit.bind(this),"block end":this.handleBlockEnd.bind(this),"group begin":this.handleGroupBegin.bind(this),mark:this.handleMark.bind(this),async:this.handleAsync.bind(this),"agent define":this.handleAgentDefine.bind(this),"agent begin":this.handleAgentBegin.bind(this),"agent end":this.handleAgentEnd.bind(this),"label pattern":this.handleLabelPattern.bind(this),connect:this.handleConnect.bind(this),"note over":this.handleNote.bind(this),"note left":this.handleNote.bind(this),"note right":this.handleNote.bind(this),"note between":this.handleNote.bind(this)},this.expandGroupedAgent=this.expandGroupedAgent.bind(this),this.handleStage=this.handleStage.bind(this),this.convertAgent=this.convertAgent.bind(this),this.endGroup=this.endGroup.bind(this)}convertAgent({alias:e,name:t}){if(e){if(this.agentAliases.has(t))throw new Error("Cannot alias "+t+"; it is already an alias");const n=this.agentAliases.get(e);if(n&&n!==e||this.agents.some(t=>t.name===e))throw new Error("Cannot use "+e+" as an alias; it is already in use");this.agentAliases.set(e,t)}return d.make(this.agentAliases.get(t)||t)}addStage(e,t=!0){e&&(void 0===e.ln&&(e.ln=this.latestLine),this.currentSection.stages.push(e),t&&(this.currentNest.hasContent=!0))}addParallelStages(e){const t=e.filter(e=>Boolean(e));if(0!==t.length)return 1===t.length?this.addStage(t[0]):(t.forEach(e=>{void 0===e.ln&&(e.ln=this.latestLine)}),this.addStage({type:"parallel",stages:t}))}defineAgents(t){e.mergeSets(this.currentNest.agents,t,d.equals),e.mergeSets(this.agents,t,d.equals)}getAgentState(e){return this.agentStates.get(e.name)||g.DEFAULT}updateAgentState(e,t){const n=this.agentStates.get(e.name);n?Object.assign(n,t):this.agentStates.set(e.name,new g(t))}validateAgents(e,{allowGrouped:t=!1,rejectGrouped:n=!1}={}){e.forEach(e=>{const s=this.getAgentState(e);if(s.covered)throw new Error("Agent "+e.name+" is hidden behind group");if(n&&null!==s.group)throw new Error("Agent "+e.name+" is in a group");if(s.blocked&&(!t||null===s.group))throw new Error("Duplicate agent name: "+e.name);if(e.name.startsWith("__"))throw new Error(e.name+" is a reserved name")})}setAgentVis(e,t,n,s=!1){const i=new Set,r=e.filter(e=>{if(i.has(e.name))return!1;i.add(e.name);const n=this.getAgentState(e);if(n.locked||n.blocked){if(s)throw new Error("Cannot begin/end agent: "+e.name);return!1}return n.visible!==t});return 0===r.length?null:(r.forEach(e=>{this.updateAgentState(e,{visible:t})}),this.defineAgents(r),{type:t?"agent begin":"agent end",agentNames:r.map(d.getName),mode:n})}setAgentHighlight(e,t,n=!1){const s=e.filter(e=>{const s=this.getAgentState(e);if(s.locked||s.blocked){if(n)throw new Error("Cannot highlight agent: "+e.name);return!1}return s.visible&&s.highlighted!==t});return 0===s.length?null:(s.forEach(e=>{this.updateAgentState(e,{highlighted:t})}),{type:"agent highlight",agentNames:s.map(d.getName),highlighted:t})}beginNested(e,t,n,s){const i=d.make(n+"[",{anchorRight:!0}),r=d.make(n+"]"),a=[i,r],o=[];return this.currentSection={header:{type:"block begin",mode:e,label:t,left:i.name,right:r.name,ln:s},stages:o},this.currentNest={mode:e,agents:a,leftAgent:i,rightAgent:r,hasContent:!1,sections:[this.currentSection]},this.agentStates.set(i.name,g.LOCKED),this.agentStates.set(r.name,g.LOCKED),this.nesting.push(this.currentNest),{agents:a,stages:o}}nextBlockName(){const e="__BLOCK"+this.blockCount;return++this.blockCount,e}handleBlockBegin({ln:e,mode:t,label:n}){this.beginNested(t,n,this.nextBlockName(),e)}handleBlockSplit({ln:e,mode:t,label:n}){if("if"!==this.currentNest.mode)throw new Error('Invalid block nesting ("else" inside '+this.currentNest.mode+")");o(this.currentSection.stages),this.currentSection={header:{type:"block split",mode:t,label:n,left:this.currentNest.leftAgent.name,right:this.currentNest.rightAgent.name,ln:e},stages:[]},this.currentNest.sections.push(this.currentSection)}handleBlockEnd(){if(this.nesting.length<=1)throw new Error('Invalid block nesting (too many "end"s)');o(this.currentSection.stages);const t=this.nesting.pop();if(this.currentNest=e.last(this.nesting),this.currentSection=e.last(this.currentNest.sections),!t.hasContent)throw new Error("Empty block");this.defineAgents(t.agents),l(this.agents,t.leftAgent,t.rightAgent,t.agents),t.sections.forEach(e=>{this.currentSection.stages.push(e.header),this.currentSection.stages.push(...e.stages)}),this.addStage({type:"block end",left:t.leftAgent.name,right:t.rightAgent.name})}makeGroupDetails(t,n){const s=t.map(this.convertAgent);if(this.validateAgents(s,{rejectGrouped:!0}),this.agentStates.has(n))throw new Error("Duplicate agent name: "+n);const i=this.nextBlockName(),r=d.make(i+"[",{anchorRight:!0}),a=d.make(i+"]");this.agentStates.set(r.name,g.LOCKED),this.agentStates.set(a.name,g.LOCKED),this.updateAgentState({name:n},{blocked:!0,group:n}),this.defineAgents(s);const{indexL:o,indexR:h}=l(this.agents,r,a,s),c=[],u=s.slice();for(let e=o+1;e<h;++e)c.push(this.agents[e]);return e.removeAll(c,u,d.equals),{colAgents:s,leftAgent:r,rightAgent:a,agentsContained:u,agentsCovered:c}}handleGroupBegin({agents:e,mode:t,label:n,alias:s}){const i=this.makeGroupDetails(e,s);i.agentsContained.forEach(e=>{this.updateAgentState(e,{group:s})}),i.agentsCovered.forEach(e=>{this.updateAgentState(e,{covered:!0})}),this.activeGroups.set(s,i),this.addStage(this.setAgentVis(i.colAgents,!0,"box")),this.addStage({type:"block begin",mode:t,label:n,left:i.leftAgent.name,right:i.rightAgent.name})}endGroup({name:e}){const t=this.activeGroups.get(e);return t?(this.activeGroups.delete(e),t.agentsContained.forEach(e=>{this.updateAgentState(e,{group:null})}),t.agentsCovered.forEach(e=>{this.updateAgentState(e,{covered:!1})}),this.updateAgentState({name:e},{group:null}),{type:"block end",left:t.leftAgent.name,right:t.rightAgent.name}):null}handleMark({name:e}){this.markers.add(e),this.addStage({type:"mark",name:e},!1)}handleAsync({target:e}){if(""!==e&&!this.markers.has(e))throw new Error("Unknown marker: "+e);this.addStage({type:"async",target:e},!1)}handleLabelPattern({pattern:e}){this.labelPattern=e.slice();for(let e=0;e<this.labelPattern.length;++e){const t=this.labelPattern[e];"object"==typeof t&&void 0!==t.start&&(this.labelPattern[e]=Object.assign({current:t.start},t))}}applyLabelPattern(e){let t="";const n={label:e};return this.labelPattern.forEach(e=>{"string"==typeof e?t+=e:void 0!==e.token?t+=n[e.token]:void 0!==e.current&&(t+=e.current.toFixed(e.dp),e.current+=e.inc)}),t}expandGroupedAgent(e){const t=this.getAgentState(e).group;if(!t)return[e];const n=this.activeGroups.get(t);return[n.leftAgent,n.rightAgent]}expandGroupedAgentConnection(t){const n=this.expandGroupedAgent(t[0]),s=this.expandGroupedAgent(t[1]);let i=e.indexOf(this.agents,n[0],d.equals),r=e.indexOf(this.agents,s[0],d.equals);return-1===i&&(i=this.agents.length),-1===r&&(r=this.agents.length),i===r?[e.last(n),e.last(s)]:i<r?[e.last(n),s[0]]:[n[0],e.last(s)]}filterConnectFlags(t){const n=t.filter(d.hasFlag("begin")).map(this.convertAgent),s=t.filter(d.hasFlag("end")).map(this.convertAgent);if(e.hasIntersection(n,s,d.equals))throw new Error("Cannot set agent visibility multiple times");const i=t.filter(d.hasFlag("start")).map(this.convertAgent),r=t.filter(d.hasFlag("stop")).map(this.convertAgent);if(e.mergeSets(r,s),e.hasIntersection(i,r,d.equals))throw new Error("Cannot set agent highlighting multiple times");return this.validateAgents(n),this.validateAgents(s),this.validateAgents(i),this.validateAgents(r),{beginAgents:n,endAgents:s,startAgents:i,stopAgents:r}}handleConnect({agents:t,label:n,options:s}){const i=this.filterConnectFlags(t);let r=t.map(this.convertAgent);this.validateAgents(r,{allowGrouped:!0});const a=e.flatMap(r,this.expandGroupedAgent);this.defineAgents(a);const o=(r=this.expandGroupedAgentConnection(r)).map(d.getName),h=t.filter(d.hasFlag("begin",!1)).map(this.convertAgent);this.addStage(this.setAgentVis(h,!0,"box"));const l={type:"connect",agentNames:o,label:this.applyLabelPattern(n),options:s};this.addParallelStages([this.setAgentVis(i.beginAgents,!0,"box",!0),this.setAgentHighlight(i.startAgents,!0,!0),l,this.setAgentHighlight(i.stopAgents,!1,!0),this.setAgentVis(i.endAgents,!1,"cross",!0)])}handleNote({type:t,agents:n,mode:s,label:i}){let r=null;r=0===n.length?u[t]||[]:n.map(this.convertAgent),this.validateAgents(r,{allowGrouped:!0});const a=(r=e.flatMap(r,this.expandGroupedAgent)).map(d.getName),o=new Set(a).size;if("note between"===t&&o<2)throw new Error("note between requires at least 2 agents");this.addStage(this.setAgentVis(r,!0,"box")),this.defineAgents(r),this.addStage({type:t,agentNames:a,mode:s,label:i})}handleAgentDefine({agents:e}){const t=e.map(this.convertAgent);this.validateAgents(t),this.defineAgents(t)}handleAgentBegin({agents:e,mode:t}){const n=e.map(this.convertAgent);this.validateAgents(n),this.addStage(this.setAgentVis(n,!0,t,!0))}handleAgentEnd({agents:e,mode:t}){const n=e.filter(e=>this.activeGroups.has(e.name)),s=e.filter(e=>!this.activeGroups.has(e.name)).map(this.convertAgent);this.validateAgents(s),this.addParallelStages([this.setAgentHighlight(s,!1),this.setAgentVis(s,!1,t,!0),...n.map(this.endGroup)])}handleStage(e){this.latestLine=e.ln;try{const t=this.stageHandlers[e.type];if(!t)throw new Error("Unknown command: "+e.type);t(e)}catch(t){if("object"==typeof t&&t.message)throw new Error(t.message+" at line "+(e.ln+1))}}generate({stages:e,meta:t={}}){this.agentStates.clear(),this.markers.clear(),this.agentAliases.clear(),this.activeGroups.clear(),this.agents.length=0,this.blockCount=0,this.nesting.length=0,this.labelPattern=[{token:"label"}];const n=this.beginNested("global","","",0);if(e.forEach(this.handleStage),1!==this.nesting.length)throw new Error("Unterminated section at line "+(this.currentSection.header.ln+1));if(this.activeGroups.size>0)throw new Error("Unterminated group");const s=t.terminators||"none";return 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s{constructor(e,t={}){this.container=e,this.state={attrs:{},text:"",x:0,y:0},this.width=0,this.height=0,this.nodes=[],this.set(t)}_rebuildNodes(t){if(t>this.nodes.length){const n=Object.assign({x:this.state.x},this.state.attrs);for(;this.nodes.length<t;){const t=e.make("text",n),s=e.makeText();t.appendChild(s),this.container.appendChild(t),this.nodes.push({element:t,text:s})}}else for(;this.nodes.length>t;){const{element:e}=this.nodes.pop();this.container.removeChild(e)}}_reset(){this._rebuildNodes(0),this.width=0,this.height=0}_renderText(){if(!this.state.text)return void this._reset();const e=this.state.text.split("\n");this._rebuildNodes(e.length);let 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Map}measure(n,s){if(!s)return{width:0,height:0};let i=this.cache.get(n);if(!i){const t=e.makeText(),s=e.make("text",n);s.appendChild(t),this.testers.appendChild(s),i={text:t,node:s},this.cache.set(n,i)}this.testers.parentNode||this.container.appendChild(this.testers);const r=s.split("\n");let a=0;return r.forEach(e=>{i.text.nodeValue=e,a=Math.max(a,i.node.getComputedTextLength())}),{width:a,height:r.length*t(n).lineHeight}}measureHeight(e,n){if(!n)return 0;return n.split("\n").length*t(e).lineHeight}resetCache(){e.empty(this.testers),this.cache.clear()}detach(){this.testers.parentNode&&this.container.removeChild(this.testers)}}return s.SizeTester=i,s}),n("svg/SVGShapes",["./SVGUtilities","./SVGTextBlock"],(e,t)=>{"use strict";function n(t,n){return e.make("rect",Object.assign({},n,t))}return{renderBox:n,renderNote:function(t,n,s){const i=e.make("g"),r=s.x,a=s.x+s.width,o=s.y,h=s.y+s.height;return i.appendChild(e.make("polygon",Object.assign({points:r+" "+o+" "+(a-7)+" "+o+" "+a+" 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e{makeState(){}resetState(e){this.makeState(e)}separationPre(){}separation(){}renderPre(){}render(){}}e.cleanRenderPreResult=(({topShift:e=0,agentNames:t=[],asynchronousY:n=null}={},s=null)=>({topShift:e,agentNames:t,asynchronousY:null!==n?n:s}));const t=new Map;return e.register=((e,n)=>{t.set(e,n)}),e.getComponents=(()=>t),e}),n("sequence/components/Block",["./BaseComponent","core/ArrayUtilities","svg/SVGUtilities","svg/SVGShapes"],(e,t,n,s)=>{"use strict";class i extends e{separation({left:e,right:t,mode:n,label:s},i){const r=i.theme.block.section,a=i.textSizer.measure(r.mode.labelAttrs,n).width+r.mode.padding.left+r.mode.padding.right+i.textSizer.measure(r.label.labelAttrs,s).width+r.label.padding.left+r.label.padding.right;i.addSeparation(e,t,a)}renderPre({left:e,right:t}){return{agentNames:[e,t]}}render({left:e,right:t,mode:i,label:r},a,o=!1){const h=a.theme.block,l=a.agentInfos.get(e),g=a.agentInfos.get(t),{hold:d}=a.state.blocks.get(e);let c=a.primaryY;o||(c+=h.section.padding.bottom,d.appendChild(n.make("line",Object.assign({x1:l.x,y1:c,x2:g.x,y2:c},h.separator.attrs))));const u=a.makeRegion(),p=s.renderBoxedText(i,{x:l.x,y:c,padding:h.section.mode.padding,boxAttrs:h.section.mode.boxAttrs,labelAttrs:h.section.mode.labelAttrs,boxLayer:d,labelLayer:u,SVGTextBlockClass:a.SVGTextBlockClass}),m=s.renderBoxedText(r,{x:l.x+p.width,y:c,padding:h.section.label.padding,boxAttrs:{fill:"#000000"},labelAttrs:h.section.label.labelAttrs,boxLayer:a.maskLayer,labelLayer:u,SVGTextBlockClass:a.SVGTextBlockClass}),f=Math.max(p.height,m.height);return u.insertBefore(n.make("rect",{x:l.x,y:c,width:g.x-l.x,height:f,fill:"transparent"}),u.firstChild),c+f+h.section.padding.top}}class r extends i{makeState(e){e.blocks=new Map}resetState(e){e.blocks.clear()}separation(e,n){t.mergeSets(n.visibleAgents,[e.left,e.right]),super.separation(e,n)}renderPre({left:e,right:t},n){return{agentNames:[e,t],topShift:n.theme.block.margin.top}}render(e,t){const s=n.make("g");return t.blockLayer.appendChild(s),t.state.blocks.set(e.left,{hold:s,mode:e.mode,startY:t.primaryY}),super.render(e,t,!0)}}class a extends e{separation({left:e,right:n},s){t.removeAll(s.visibleAgents,[e,n])}renderPre({left:e,right:t},n){return{agentNames:[e,t],topShift:n.theme.block.section.padding.bottom}}render({left:e,right:t},s){const i=s.theme.block,r=s.agentInfos.get(e),a=s.agentInfos.get(t),{hold:o,startY:h,mode:l}=s.state.blocks.get(e),g=i.modes[l]||i.modes[""];return o.appendChild(n.make("rect",Object.assign({x:r.x,y:h,width:a.x-r.x,height:s.primaryY-h},g.boxAttrs))),s.primaryY+i.margin.bottom+s.theme.actionMargin}}return e.register("block begin",new r),e.register("block split",new i),e.register("block end",new a),{BlockBegin:r,BlockSplit:i,BlockEnd:a}}),n("sequence/components/Parallel",["./BaseComponent","core/ArrayUtilities"],(e,t)=>{"use strict";function n(e,n){return t.mergeSets(e.agentNames,n.agentNames),{topShift:Math.max(e.topShift,n.topShift),agentNames:e.agentNames,asynchronousY:function(e=null,t=null){return null===e?t:null===t?e:Math.max(e,t)}(e.asynchronousY,n.asynchronousY)}}class s extends e{separationPre(e,t){e.stages.forEach(e=>{t.components.get(e.type).separationPre(e,t)})}separation(e,t){e.stages.forEach(e=>{t.components.get(e.type).separation(e,t)})}renderPre(t,s){return t.stages.map(t=>{const n=s.components.get(t.type).renderPre(t,s);return e.cleanRenderPreResult(n)}).reduce(n,{topShift:0,agentNames:[],asynchronousY:null})}render(e,t){const n=t.makeRegion;let s=0;return e.stages.forEach(e=>{t.makeRegion=((t,s=null)=>n(t,s||e));const i=t.components.get(e.type).render(e,t)||0;s=Math.max(s,i)}),t.makeRegion=n,s}}return e.register("parallel",new s),s}),n("sequence/components/Marker",["./BaseComponent"],e=>{"use strict";class t extends e{makeState(e){e.marks=new Map}resetState(e){e.marks.clear()}render({name:e},{topY:t,state:n}){n.marks.set(e,t)}}class n extends e{renderPre({target:e},{state:t}){let n=0;return e&&t.marks&&(n=t.marks.get(e)||0),{asynchronousY:n}}}return e.register("mark",new t),e.register("async",new n),{Mark:t,Async:n}}),n("sequence/components/AgentCap",["./BaseComponent","core/ArrayUtilities","svg/SVGUtilities","svg/SVGShapes"],(e,t,n,s)=>{"use strict";class i{separation({label:e},t){const n=t.theme.agentCap.box,s=t.textSizer.measure(n.labelAttrs,e).width+n.padding.left+n.padding.right;return{left:s/2,right:s/2,radius:s/2}}topShift({label:e},t){const n=t.theme.agentCap.box,s=t.textSizer.measureHeight(n.labelAttrs,e)+n.padding.top+n.padding.bottom;return Math.max(0,s-n.arrowBottom)}render(e,{x:t,label:i},r){const a=r.theme.agentCap.box,o=r.makeRegion(),{width:h,height:l}=s.renderBoxedText(i,{x:t,y:e,padding:a.padding,boxAttrs:a.boxAttrs,boxRenderer:a.boxRenderer,labelAttrs:a.labelAttrs,boxLayer:r.shapeLayer,labelLayer:o,SVGTextBlockClass:r.SVGTextBlockClass});return o.insertBefore(n.make("rect",{x:t-h/2,y:e,width:h,height:l,fill:"transparent"}),o.firstChild),{lineTop:0,lineBottom:l,height:l}}}class r{separation(e,t){const n=t.theme.agentCap.cross;return{left:n.size/2,right:n.size/2,radius:0}}topShift(e,t){return t.theme.agentCap.cross.size/2}render(e,{x:t},s){const i=s.theme.agentCap.cross,r=i.size/2;return s.shapeLayer.appendChild(i.render({x:t,y:e+r,radius:r})),s.makeRegion().appendChild(n.make("rect",{x:t-r,y:e,width:2*r,height:2*r,fill:"transparent"})),{lineTop:r,lineBottom:r,height:2*r}}}class a{separation({label:e},t){const n=t.theme.agentCap.box,s=t.textSizer.measure(n.labelAttrs,e).width+n.padding.left+n.padding.right;return{left:s/2,right:s/2,radius:s/2}}topShift(e,t){return t.theme.agentCap.bar.height/2}render(e,{x:t,label:s},i){const r=i.theme.agentCap.box,a=i.theme.agentCap.bar,o=i.textSizer.measure(r.labelAttrs,s).width+r.padding.left+r.padding.right,h=a.height;return i.shapeLayer.appendChild(a.render({x:t-o/2,y:e,width:o,height:h})),i.makeRegion().appendChild(n.make("rect",{x:t-o/2,y:e,width:o,height:h,fill:"transparent"})),{lineTop:0,lineBottom:h,height:h}}}class o{separation({currentRad:e}){return{left:e,right:e,radius:e}}topShift(e,t,n){const s=t.theme.agentCap.fade;return n?s.height:0}render(e,{x:t,label:s},i,r){const a=i.theme.agentCap.fade,o=i.addDef(r?"FadeIn":"FadeOut",()=>{const e=n.make("linearGradient",{x1:"0%",y1:r?"100%":"0%",x2:"0%",y2:r?"0%":"100%"});return e.appendChild(n.make("stop",{offset:100/12+"%","stop-color":"#FFFFFF"})),e.appendChild(n.make("stop",{offset:1100/12+"%","stop-color":"#000000"})),e});return i.maskLayer.appendChild(n.make("rect",{x:t-a.width/2,y:e-.1*a.height,width:a.width,height:1.2*a.height,fill:"url(#"+o+")"})),i.makeRegion().appendChild(n.make("rect",{x:t-a.width/2,y:e,width:a.width,height:a.height,fill:"transparent"})),{lineTop:a.height,lineBottom:0,height:a.height}}}class h{separation({currentRad:e}){return{left:e,right:e,radius:e}}topShift(e,t){return t.theme.agentCap.none.height}render(e,{x:t},s){const i=s.theme.agentCap.none;return s.makeRegion().appendChild(n.make("rect",{x:t-5,y:e,width:10,height:i.height,fill:"transparent"})),{lineTop:i.height,lineBottom:0,height:i.height}}}const l={box:new i,cross:new r,bar:new a,fade:new o,none:new h};class g extends e{constructor(e){super(),this.begin=e}separationPre({mode:e,agentNames:t},n){t.forEach(t=>{const s=n.agentInfos.get(t),i=l[e].separation(s,n,this.begin);n.addSpacing(t,i),s.currentMaxRad=Math.max(s.currentMaxRad,i.radius)})}separation({mode:e,agentNames:n},s){this.begin?t.mergeSets(s.visibleAgents,n):t.removeAll(s.visibleAgents,n)}renderPre({mode:e,agentNames:t},n){let s=0;return t.forEach(t=>{const i=n.agentInfos.get(t),r=l[e],a=r.topShift(i,n,this.begin);s=Math.max(s,a);const o=r.separation(i,n,this.begin).radius;i.currentMaxRad=Math.max(i.currentMaxRad,o)}),{agentNames:t,topShift:s}}render({mode:e,agentNames:t},n){let s=0;return t.forEach(t=>{const i=n.agentInfos.get(t),r=l[e],a=r.topShift(i,n,this.begin),o=n.primaryY-a,h=r.render(o,i,n,this.begin);s=Math.max(s,o+h.height),this.begin?n.drawAgentLine(t,o+h.lineBottom):n.drawAgentLine(t,o+h.lineTop,!0)}),s+n.theme.actionMargin}}return e.register("agent begin",new g(!0)),e.register("agent end",new g(!1)),g}),n("sequence/components/AgentHighlight",["./BaseComponent"],e=>{"use strict";class t extends e{radius(e,t){return e?t.theme.agentLineHighlightRadius:0}separationPre({agentNames:e,highlighted:t},n){const s=this.radius(t,n);e.forEach(e=>{const t=n.agentInfos.get(e);t.currentRad=s,t.currentMaxRad=Math.max(t.currentMaxRad,s)})}renderPre({agentNames:e,highlighted:t},n){const s=this.radius(t,n);e.forEach(e=>{const t=n.agentInfos.get(e);t.currentMaxRad=Math.max(t.currentMaxRad,s)})}render({agentNames:e,highlighted:t},n){const s=this.radius(t,n);return e.forEach(e=>{n.drawAgentLine(e,n.primaryY),n.agentInfos.get(e).currentRad=s}),n.primaryY+n.theme.actionMargin}}return e.register("agent highlight",new t),t}),n("sequence/components/Connect",["./BaseComponent","svg/SVGUtilities","svg/SVGShapes"],(e,t,n)=>{"use strict";function s(e){return[0,2*-e/3,-e,2*-e/3,0,2*e/3,e,2*e/3]}class i{constructor(e){this.propName=e}getConfig(e){return e.connect.arrow[this.propName]}short(e){const t=this.getConfig(e),n=t.attrs["stroke-linejoin"]||"miter",s=.5*t.attrs["stroke-width"],i=.5*e.agentLineAttrs["stroke-width"];if("round"===n)return i+s;{const e=t.height/2,n=t.width;return i+s*Math.sqrt(n*n/(e*e)+1)}}render(e,n,{x:s,y:i,dir:r}){const a=this.getConfig(n);!function(e,{x:n,y:s,dx:i,dy:r,attrs:a}){e.appendChild(t.make("none"===a.fill?"polyline":"polygon",Object.assign({points:n+i+" "+(s-r)+" "+n+" "+s+" "+(n+i)+" "+(s+r)},a)))}(e,{x:s+this.short(n)*r,y:i,dx:a.width*r,dy:a.height/2,attrs:a.attrs})}width(e){return this.short(e)+this.getConfig(e).width}height(e){return this.getConfig(e).height}lineGap(e,t){const n=this.getConfig(e),s=this.short(e);if("none"===n.attrs.fill){const e=n.height/2,i=n.width;return(s+(s+t["stroke-width"]/2*(i/e)))/2}return s+n.width/2}}const r=[{render:()=>{},width:()=>0,height:()=>0,lineGap:()=>0},new i("single"),new i("double")];class a{renderFlat(e,{x1:n,x2:i,y:r},a){const o=a["wave-width"],h=a["wave-height"];if(!o||!h)return void e.appendChild(t.make("line",Object.assign({x1:n,y1:r,x2:i,y2:r},a)));const l=s(h),g=o/l.length;let d=0,c="";for(let e=n;e+g<=i;e+=g)c+=e+" "+(r+l[d++%l.length])+" ";c+=i+" "+r,e.appendChild(t.make("polyline",Object.assign({points:c},a)))}renderRev(e,{xL1:n,xL2:i,y1:r,y2:a,xR:o},h){const l=(a-r)/2,g=h["wave-width"],d=h["wave-height"];if(!g||!d)return void e.appendChild(t.make("path",Object.assign({d:"M"+n+" "+r+"L"+o+" "+r+"A"+l+" "+l+" 0 0 1 "+o+" "+a+"L"+i+" "+a},h)));const c=s(d),u=g/c.length;let p=0,m="";for(let e=n;e+u<=o;e+=u)m+=e+" "+(r+c[p++%c.length])+" ";const f=(r+a)/2;for(let e=0;e+u/l<=Math.PI;e+=u/l){const t=c[p++%c.length];m+=o+Math.sin(e)*(l-t)+" "+(f-Math.cos(e)*(l-t))+" "}for(let e=o;e-u>=i;e-=u)m+=e+" "+(a-c[p++%c.length])+" ";m+=i+" "+a,e.appendChild(t.make("polyline",Object.assign({points:m},h)))}}const o=new a;class h extends e{separation({label:e,agentNames:t,options:n},s){const i=s.theme.connect,a=r[n.left],o=r[n.right];let h=s.textSizer.measure(i.label.attrs,e).width;h>0&&(h+=2*i.label.padding);const l=s.agentInfos.get(t[0]);if(t[0]===t[1])s.addSpacing(t[0],{left:0,right:l.currentMaxRad+Math.max(h+a.width(s.theme),o.width(s.theme))+i.loopbackRadius});else{const e=s.agentInfos.get(t[1]);s.addSeparation(t[0],t[1],l.currentMaxRad+e.currentMaxRad+h+2*Math.max(a.width(s.theme),o.width(s.theme)))}}renderSelfConnect({label:e,agentNames:s,options:i},a){const h=a.theme.connect,l=a.agentInfos.get(s[0]),g=r[i.left],d=r[i.right],c=e?a.textSizer.measureHeight(h.label.attrs,e)+h.label.margin.top+h.label.margin.bottom:0,u=l.x+l.currentMaxRad,p=a.primaryY,m=u+g.width(a.theme)+(e?h.label.padding:0),f=a.makeRegion(),b=n.renderBoxedText(e,{x:m-h.mask.padding.left,y:p-c+h.label.margin.top,padding:h.mask.padding,boxAttrs:{fill:"#000000"},labelAttrs:h.label.loopbackAttrs,boxLayer:a.maskLayer,labelLayer:f,SVGTextBlockClass:a.SVGTextBlockClass}),y=e?b.width+h.label.padding-h.mask.padding.left-h.mask.padding.right:0,x=h.loopbackRadius,k=Math.max(u+d.width(a.theme),m+y),w=p+2*x,A=h.lineAttrs[i.line];o.renderRev(a.shapeLayer,{xL1:u+g.lineGap(a.theme,A),xL2:u+d.lineGap(a.theme,A),y1:p,y2:w,xR:k},A),g.render(a.shapeLayer,a.theme,{x:u,y:p,dir:1}),d.render(a.shapeLayer,a.theme,{x:u,y:w,dir:1});const v=Math.max(c,g.height(a.theme)/2),S=d.height(a.theme)/2;return f.insertBefore(t.make("rect",{x:u,y:p-v,width:k+x-u,height:v+2*x+S,fill:"transparent"}),f.firstChild),w+Math.max(S+a.theme.minActionMargin,a.theme.actionMargin)}renderSimpleConnect({label:e,agentNames:s,options:i},a){const h=a.theme.connect,l=a.agentInfos.get(s[0]),g=a.agentInfos.get(s[1]),d=r[i.left],c=r[i.right],u=l.x<g.x?1:-1,p=a.textSizer.measureHeight(h.label.attrs,e)+h.label.margin.top+h.label.margin.bottom,m=l.x+l.currentMaxRad*u,f=g.x-g.currentMaxRad*u,b=a.primaryY,y=a.makeRegion();n.renderBoxedText(e,{x:(m+f)/2,y:b-p+h.label.margin.top,padding:h.mask.padding,boxAttrs:{fill:"#000000"},labelAttrs:h.label.attrs,boxLayer:a.maskLayer,labelLayer:y,SVGTextBlockClass:a.SVGTextBlockClass});const x=h.lineAttrs[i.line];o.renderFlat(a.shapeLayer,{x1:m+d.lineGap(a.theme,x)*u,x2:f-c.lineGap(a.theme,x)*u,y:b},x),d.render(a.shapeLayer,a.theme,{x:m,y:b,dir:u}),c.render(a.shapeLayer,a.theme,{x:f,y:b,dir:-u});const k=Math.max(d.height(a.theme),c.height(a.theme))/2;return y.insertBefore(t.make("rect",{x:Math.min(m,f),y:b-Math.max(p,k),width:Math.abs(f-m),height:Math.max(p,k)+k,fill:"transparent"}),y.firstChild),b+Math.max(k+a.theme.minActionMargin,a.theme.actionMargin)}renderPre({label:e,agentNames:t,options:n},s){const i=s.theme.connect,a=r[n.left],o=r[n.right],h=s.textSizer.measureHeight(i.label.attrs,e)+i.label.margin.top+i.label.margin.bottom;let l=a.height(s.theme);return t[0]!==t[1]&&(l=Math.max(l,o.height(s.theme))),{agentNames:t,topShift:Math.max(l/2,h)}}render(e,t){return e.agentNames[0]===e.agentNames[1]?this.renderSelfConnect(e,t):this.renderSimpleConnect(e,t)}}return e.register("connect",new h),h}),n("sequence/components/Note",["./BaseComponent","svg/SVGUtilities"],(e,t)=>{"use strict";function n(e,t){let n=null,s=null;return t.forEach(t=>{const i=e.get(t);(null===n||i.index<n.index)&&(n=i),(null===s||i.index>s.index)&&(s=i)}),{left:n.label,right:s.label}}class s extends e{renderPre({agentNames:e}){return{agentNames:e}}renderNote({xMid:e=null,x0:n=null,x1:s=null,anchor:i,mode:r,label:a},o){const h=o.theme.getNote(r),l=o.makeRegion(),g=o.topY+h.margin.top+h.padding.top,d=new o.SVGTextBlockClass(l,{attrs:h.labelAttrs,text:a,y:g}),c=d.width+h.padding.left+h.padding.right,u=h.padding.top+d.height+h.padding.bottom;switch(null===n&&null!==e&&(n=e-c/2),null===s&&null!==n?s=n+c:null===n&&(n=s-c),h.labelAttrs["text-anchor"]){case"middle":d.set({x:(n+h.padding.left+s-h.padding.right)/2,y:g});break;case"end":d.set({x:s-h.padding.right,y:g});break;default:d.set({x:n+h.padding.left,y:g})}return o.shapeLayer.appendChild(h.boxRenderer({x:n,y:o.topY+h.margin.top,width:s-n,height:u})),l.insertBefore(t.make("rect",{x:n,y:o.topY+h.margin.top,width:s-n,height:u,fill:"transparent"}),l.firstChild),o.topY+h.margin.top+u+h.margin.bottom+o.theme.actionMargin}}class i extends s{separation({agentNames:e,mode:t,label:s},i){const r=i.theme.getNote(t),a=i.textSizer.measure(r.labelAttrs,s).width+r.padding.left+r.padding.right,{left:o,right:h}=n(i.agentInfos,e),l=i.agentInfos.get(o),g=i.agentInfos.get(h);if(l!==g){const e=l.currentMaxRad+r.overlap.left,t=g.currentMaxRad+r.overlap.right;i.addSeparation(o,h,a-e-t),i.addSpacing(o,{left:e,right:0}),i.addSpacing(h,{left:0,right:t})}else i.addSpacing(o,{left:a/2,right:a/2})}render({agentNames:e,mode:t,label:s},i){const r=i.theme.getNote(t),{left:a,right:o}=n(i.agentInfos,e),h=i.agentInfos.get(a),l=i.agentInfos.get(o);if(h!==l)return this.renderNote({x0:h.x-h.currentMaxRad-r.overlap.left,x1:l.x+l.currentMaxRad+r.overlap.right,anchor:"middle",mode:t,label:s},i);{const e=h.x;return this.renderNote({xMid:e,anchor:"middle",mode:t,label:s},i)}}}class r extends s{constructor(e){super(),this.isRight=e}separation({agentNames:e,mode:t,label:s},i){const r=i.theme.getNote(t),{left:a,right:o}=n(i.agentInfos,e),h=i.textSizer.measure(r.labelAttrs,s).width+r.padding.left+r.padding.right+r.margin.left+r.margin.right;if(this.isRight){const e=i.agentInfos.get(o);i.addSpacing(o,{left:0,right:h+e.currentMaxRad})}else{const e=i.agentInfos.get(a);i.addSpacing(a,{left:h+e.currentMaxRad,right:0})}}render({agentNames:e,mode:t,label:s},i){const r=i.theme.getNote(t),{left:a,right:o}=n(i.agentInfos,e);if(this.isRight){const e=i.agentInfos.get(o),n=e.x+e.currentMaxRad+r.margin.left;return this.renderNote({x0:n,anchor:"start",mode:t,label:s},i)}{const e=i.agentInfos.get(a),n=e.x-e.currentMaxRad-r.margin.right;return this.renderNote({x1:n,anchor:"end",mode:t,label:s},i)}}}class a extends s{separation({agentNames:e,mode:t,label:s},i){const r=i.theme.getNote(t),{left:a,right:o}=n(i.agentInfos,e),h=i.agentInfos.get(a),l=i.agentInfos.get(o);i.addSeparation(a,o,i.textSizer.measure(r.labelAttrs,s).width+r.padding.left+r.padding.right+r.margin.left+r.margin.right+h.currentMaxRad+l.currentMaxRad)}render({agentNames:e,mode:t,label:s},i){const{left:r,right:a}=n(i.agentInfos,e),o=i.agentInfos.get(r),h=i.agentInfos.get(a),l=(o.x+o.currentMaxRad+h.x-h.currentMaxRad)/2;return this.renderNote({xMid:l,anchor:"middle",mode:t,label:s},i)}}return s.NoteOver=i,s.NoteSide=r,s.NoteBetween=a,e.register("note over",new i),e.register("note left",new r(!1)),e.register("note right",new r(!0)),e.register("note between",new a),s}),n("sequence/Renderer",["core/ArrayUtilities","core/EventObject","svg/SVGUtilities","svg/SVGShapes","./components/BaseComponent","./components/Block","./components/Parallel","./components/Marker","./components/AgentCap","./components/AgentHighlight","./components/Connect","./components/Note"],(e,t,n,s,i)=>{"use strict";function r(e,t){let n=null,s=null;return t.forEach(t=>{const i=e.get(t);(null===n||i.index<n.index)&&(n=i),(null===s||i.index>s.index)&&(s=i)}),{left:n.label,right:s.label}}let a=0;return class extends t{constructor({themes:e=[],namespace:t=null,components:n=null,SVGTextBlockClass:r=s.TextBlock}={}){super(),null===n&&(n=i.getComponents()),this.separationStage=this.separationStage.bind(this),this.renderStage=this.renderStage.bind(this),this.addSeparation=this.addSeparation.bind(this),this.addDef=this.addDef.bind(this),this.state={},this.width=0,this.height=0,this.themes=function(e){if(0===e.length)throw new Error("Cannot render without a theme");const t=new Map;return e.forEach(e=>{t.set(e.name,e)}),t.set("",e[0]),t}(e),this.theme=null,this.namespace=function(e){return null===e&&(e="R"+a,++a),e}(t),this.components=n,this.SVGTextBlockClass=r,this.knownDefs=new Set,this.highlights=new Map,this.currentHighlight=-1,this.buildStaticElements(),this.components.forEach(e=>{e.makeState(this.state)})}addTheme(e){this.themes.set(e.name,e)}buildStaticElements(){this.base=n.makeContainer(),this.defs=n.make("defs"),this.mask=n.make("mask",{id:this.namespace+"LineMask",maskUnits:"userSpaceOnUse"}),this.maskReveal=n.make("rect",{fill:"#FFFFFF"}),this.agentLines=n.make("g",{mask:"url(#"+this.namespace+"LineMask)"}),this.blocks=n.make("g"),this.actionShapes=n.make("g"),this.actionLabels=n.make("g"),this.base.appendChild(this.defs),this.base.appendChild(this.agentLines),this.base.appendChild(this.blocks),this.base.appendChild(this.actionShapes),this.base.appendChild(this.actionLabels),this.title=new this.SVGTextBlockClass(this.base),this.sizer=new this.SVGTextBlockClass.SizeTester(this.base)}addDef(e,t){const n=this.namespace+e;if(this.knownDefs.has(e))return n;this.knownDefs.add(e);const s=t();return s.setAttribute("id",n),this.defs.appendChild(s),n}addSeparation(e,t,n){const s=this.agentInfos.get(e),i=this.agentInfos.get(t),r=s.separations.get(t)||0;s.separations.set(t,Math.max(r,n));const a=i.separations.get(e)||0;i.separations.set(e,Math.max(a,n))}separationStage(t){const n=new Map,s=this.visibleAgents.slice();this.agentInfos.forEach(e=>{const t=e.currentRad;e.currentMaxRad=t,n.set(e.label,{left:t,right:t})});const i={theme:this.theme,agentInfos:this.agentInfos,visibleAgents:this.visibleAgents,textSizer:this.sizer,addSpacing:(e,{left:t,right:s})=>{const i=n.get(e);i.left=Math.max(i.left,t),i.right=Math.max(i.right,s)},addSeparation:this.addSeparation,components:this.components},r=this.components.get(t.type);if(!r)throw new Error("Unknown component: "+t.type);r.separationPre(t,i),r.separation(t,i),e.mergeSets(s,this.visibleAgents),s.forEach(e=>{const t=this.agentInfos.get(e),i=n.get(e);t.maxRPad=Math.max(t.maxRPad,i.right),t.maxLPad=Math.max(t.maxLPad,i.left),s.forEach(s=>{if(this.agentInfos.get(s).index>=t.index)return;const r=n.get(s);this.addSeparation(e,s,i.left+r.right+this.theme.agentMargin)})})}checkAgentRange(e,t=0){if(0===e.length)return t;const{left:n,right:s}=r(this.agentInfos,e),i=this.agentInfos.get(n).x,a=this.agentInfos.get(s).x;let o=t;return this.agentInfos.forEach(e=>{e.x>=i&&e.x<=a&&(o=Math.max(o,e.latestY))}),o}markAgentRange(e,t){if(0===e.length)return;const{left:n,right:s}=r(this.agentInfos,e),i=this.agentInfos.get(n).x,a=this.agentInfos.get(s).x;this.agentInfos.forEach(e=>{e.x>=i&&e.x<=a&&(e.latestY=t)})}drawAgentLine(e,t){null===e.latestYStart||t<=e.latestYStart||this.theme.drawAgentLine(this.agentLines,{x:e.x,y0:e.latestYStart,y1:t,width:2*e.currentRad,className:"agent-"+e.index+"-line"})}addHighlightObject(e,t){let n=this.highlights.get(e);n||(n=[],this.highlights.set(e,n)),n.push(t)}renderStage(e){this.agentInfos.forEach(e=>{const t=e.currentRad;e.currentMaxRad=t});const t={theme:this.theme,agentInfos:this.agentInfos,textSizer:this.sizer,state:this.state,components:this.components},s=this.components.get(e.type),r=s.renderPre(e,t),{topShift:a,agentNames:o,asynchronousY:h}=i.cleanRenderPreResult(r,this.currentY),l=this.checkAgentRange(o,h),g={topY:l,primaryY:l+a,blockLayer:this.blocks,shapeLayer:this.actionShapes,labelLayer:this.actionLabels,maskLayer:this.mask,theme:this.theme,agentInfos:this.agentInfos,textSizer:this.sizer,SVGTextBlockClass:this.SVGTextBlockClass,state:this.state,drawAgentLine:(e,t,n=!1)=>{const s=this.agentInfos.get(e);this.drawAgentLine(s,t),s.latestYStart=n?null:t},addDef:this.addDef,makeRegion:(t,s=null)=>{t||(t=n.make("g"));const i=s||e;return this.addHighlightObject(i.ln,t),t.setAttribute("class","region"),t.addEventListener("mouseenter",()=>{this.trigger("mouseover",[i])}),t.addEventListener("mouseleave",()=>{this.trigger("mouseout")}),t.addEventListener("click",()=>{this.trigger("click",[i])}),this.actionLabels.appendChild(t),t},components:this.components},d=Math.max(l,s.render(e,g)||0);this.markAgentRange(o,d),this.currentY=d}positionAgents(){const e=[];this.agentInfos.forEach(t=>{let n=0;t.separations.forEach((e,s)=>{const i=this.agentInfos.get(s);i.index<t.index&&(n=Math.max(n,i.x+e))}),t.x=n,e.push(t)});let t={x:0};e.reverse().forEach(e=>{let n=t.x;t=e,e.anchorRight&&(e.separations.forEach((t,s)=>{const i=this.agentInfos.get(s);i.index>e.index&&(n=Math.min(n,i.x-t))}),e.x=n)}),this.agentInfos.forEach(({label:e,x:t,maxRPad:n,maxLPad:s})=>{this.minX=Math.min(this.minX,t-s),this.maxX=Math.max(this.maxX,t+n)})}buildAgentInfos(e,t){this.agentInfos=new Map,e.forEach((e,t)=>{this.agentInfos.set(e.name,{label:e.name,anchorRight:e.anchorRight,index:t,x:null,latestYStart:null,currentRad:0,currentMaxRad:0,latestY:0,maxRPad:0,maxLPad:0,separations:new Map})}),this.visibleAgents=["[","]"],t.forEach(this.separationStage),this.positionAgents()}updateBounds(e){const t=(this.minX+this.maxX)/2,n=this.title.height>0?-this.theme.titleMargin-this.title.height:0;this.title.set({x:t,y:n});const s=this.title.width/2,i=this.theme.outerMargin,r=Math.min(this.minX,t-s)-i,a=Math.max(this.maxX,t+s)+i,o=n-i,h=e+i;this.maskReveal.setAttribute("x",r),this.maskReveal.setAttribute("y",o),this.maskReveal.setAttribute("width",a-r),this.maskReveal.setAttribute("height",h-o),this.base.setAttribute("viewBox",r+" "+o+" "+(a-r)+" "+(h-o)),this.width=a-r,this.height=h-o}_reset(){this.knownDefs.clear(),this.highlights.clear(),this.currentHighlight=-1,n.empty(this.defs),n.empty(this.mask),n.empty(this.agentLines),n.empty(this.blocks),n.empty(this.actionShapes),n.empty(this.actionLabels),this.mask.appendChild(this.maskReveal),this.defs.appendChild(this.mask),this.components.forEach(e=>{e.resetState(this.state)})}setHighlight(e=null){null!==e&&this.highlights.has(e)||(e=-1),this.currentHighlight!==e&&(-1!==this.currentHighlight&&this.highlights.get(this.currentHighlight).forEach(e=>{e.setAttribute("class","region")}),-1!==e&&this.highlights.get(e).forEach(e=>{e.setAttribute("class","region focus")}),this.currentHighlight=e)}render(e){const t=this.currentHighlight;this._reset();const n=e.meta.theme;this.theme=this.themes.get(n),this.theme||(this.theme=this.themes.get("")),this.theme.reset(),this.theme.addDefs(this.addDef),this.title.set({attrs:this.theme.titleAttrs,text:e.meta.title}),this.minX=0,this.maxX=0,this.buildAgentInfos(e.agents,e.stages),this.currentY=0,e.stages.forEach(this.renderStage);const s=this.checkAgentRange(["[","]"],this.currentY),i=Math.max(s-this.theme.actionMargin,0);this.updateBounds(i),this.sizer.resetCache(),this.sizer.detach(),this.setHighlight(t)}getThemeNames(){return Array.from(this.themes.keys()).filter(e=>""!==e)}getThemes(){return this.getThemeNames().map(e=>this.themes.get(e))}getAgentX(e){return this.agentInfos.get(e).x}svg(){return this.base}}}),n("sequence/Exporter",[],()=>{"use strict";const e=/^((?!chrome|android).)*safari/i.test(navigator.userAgent),t=void 0!==window.InstallTrigger;return class{constructor(){this.latestSVG=null,this.latestInternalSVG=null,this.canvas=null,this.context=null,this.indexPNG=0,this.latestPNGIndex=0,this.latestPNG=null}getSVGContent(e,n=null){let s=e.svg().outerHTML;return t&&n&&(s=s.replace(/^<svg/,'<svg width="'+n.width+'" height="'+n.height+'" ')),s}getSVGBlob(e,t=null){return new Blob([this.getSVGContent(e,t)],{type:"image/svg+xml"})}getSVGURL(e,t=null){const n=this.getSVGBlob(e,t);return t?(this.latestInternalSVG&&URL.revokeObjectURL(this.latestInternalSVG),this.latestInternalSVG=URL.createObjectURL(n),this.latestInternalSVG):(this.latestSVG&&URL.revokeObjectURL(this.latestSVG),this.latestSVG=URL.createObjectURL(n),this.latestSVG)}getPNGBlob(t,n,s){this.canvas||(window.devicePixelRatio=1,this.canvas=document.createElement("canvas"),this.context=this.canvas.getContext("2d"));const i=t.width*n,r=t.height*n,a=new Image(i,r);let o=null;e&&((o=document.createElement("div")).style.position="absolute",o.style.visibility="hidden",o.appendChild(a),document.body.appendChild(o)),a.addEventListener("load",()=>{this.canvas.width=i,this.canvas.height=r,this.context.drawImage(a,0,0),o&&document.body.removeChild(o),this.canvas.toBlob(s,"image/png")},{once:!0}),a.src=this.getSVGURL(t,{width:i,height:r})}getPNGURL(e,t,n){++this.indexPNG;const s=this.indexPNG;this.getPNGBlob(e,t,e=>{const t=URL.createObjectURL(e);s>=this.latestPNGIndex?(this.latestPNG&&URL.revokeObjectURL(this.latestPNG),this.latestPNG=t,this.latestPNGIndex=s,n(t,!0)):(n(t,!1),URL.revokeObjectURL(t))})}}}),n("sequence/themes/Basic",["core/ArrayUtilities","svg/SVGUtilities","svg/SVGShapes"],(e,t,n)=>{"use strict";const s="sans-serif",i={titleMargin:10,outerMargin:5,agentMargin:10,actionMargin:10,minActionMargin:3,agentLineHighlightRadius:4,agentCap:{box:{padding:{top:5,left:10,right:10,bottom:5},arrowBottom:12.8,boxAttrs:{fill:"#FFFFFF",stroke:"#000000","stroke-width":1},labelAttrs:{"font-family":s,"font-size":12,"line-height":1.3,"text-anchor":"middle"}},cross:{size:20,render:({x:e,y:n,radius:s})=>t.make("path",{d:"M"+(e-s)+" "+(n-s)+"l"+2*s+" "+2*s+"m0 "+2*-s+"l"+2*-s+" "+2*s,fill:"none",stroke:"#000000","stroke-width":1})},bar:{height:4,render:({x:e,y:n,width:s,height:i})=>t.make("rect",{x:e,y:n,width:s,height:i,fill:"#000000",stroke:"#000000","stroke-width":1})},fade:{width:5,height:6},none:{height:10}},connect:{loopbackRadius:6,lineAttrs:{solid:{fill:"none",stroke:"#000000","stroke-width":1},dash:{fill:"none",stroke:"#000000","stroke-width":1,"stroke-dasharray":"4, 2"},wave:{fill:"none",stroke:"#000000","stroke-width":1,"stroke-linejoin":"round","stroke-linecap":"round","wave-width":6,"wave-height":.5}},arrow:{single:{width:5,height:10,attrs:{fill:"#000000","stroke-width":0,"stroke-linejoin":"miter"}},double:{width:4,height:6,attrs:{fill:"none",stroke:"#000000","stroke-width":1,"stroke-linejoin":"miter"}}},label:{padding:6,margin:{top:2,bottom:1},attrs:{"font-family":s,"font-size":8,"line-height":1.3,"text-anchor":"middle"},loopbackAttrs:{"font-family":s,"font-size":8,"line-height":1.3}},mask:{padding:{top:0,left:3,right:3,bottom:1}}},block:{margin:{top:0,bottom:0},modes:{ref:{boxAttrs:{fill:"#FFFFFF",stroke:"#000000","stroke-width":1.5,rx:2,ry:2}},"":{boxAttrs:{fill:"none",stroke:"#000000","stroke-width":1.5,rx:2,ry:2}}},section:{padding:{top:3,bottom:2},mode:{padding:{top:1,left:3,right:3,bottom:0},boxAttrs:{fill:"#FFFFFF",stroke:"#000000","stroke-width":1,rx:2,ry:2},labelAttrs:{"font-family":s,"font-weight":"bold","font-size":9,"line-height":1.3,"text-anchor":"left"}},label:{padding:{top:1,left:5,right:3,bottom:0},labelAttrs:{"font-family":s,"font-size":8,"line-height":1.3,"text-anchor":"left"}}},separator:{attrs:{stroke:"#000000","stroke-width":1.5,"stroke-dasharray":"4, 2"}}},titleAttrs:{"font-family":s,"font-size":20,"line-height":1.3,"text-anchor":"middle",class:"title"},agentLineAttrs:{fill:"none",stroke:"#000000","stroke-width":1}},r={text:{margin:{top:0,left:2,right:2,bottom:0},padding:{top:2,left:2,right:2,bottom:2},overlap:{left:10,right:10},boxRenderer:n.renderBox.bind(null,{fill:"#FFFFFF"}),labelAttrs:{"font-family":s,"font-size":8,"line-height":1.3}},note:{margin:{top:0,left:5,right:5,bottom:0},padding:{top:5,left:5,right:10,bottom:5},overlap:{left:10,right:10},boxRenderer:n.renderNote.bind(null,{fill:"#FFFFFF",stroke:"#000000","stroke-width":1},{fill:"none",stroke:"#000000","stroke-width":1}),labelAttrs:{"font-family":s,"font-size":8,"line-height":1.3}},state:{margin:{top:0,left:5,right:5,bottom:0},padding:{top:7,left:7,right:7,bottom:7},overlap:{left:10,right:10},boxRenderer:n.renderBox.bind(null,{fill:"#FFFFFF",stroke:"#000000","stroke-width":1,rx:10,ry:10}),labelAttrs:{"font-family":s,"font-size":8,"line-height":1.3}}};return class{constructor(){this.name="basic",Object.assign(this,i)}reset(){}addDefs(){}getNote(e){return r[e]}drawAgentLine(e,{x:n,y0:s,y1:i,width:r,className:a}){r>0?e.appendChild(t.make("rect",Object.assign({x:n-r/2,y:s,width:r,height:i-s,class:a},this.agentLineAttrs))):e.appendChild(t.make("line",Object.assign({x1:n,y1:s,x2:n,y2:i,class:a},this.agentLineAttrs)))}}}),n("sequence/themes/Chunky",["core/ArrayUtilities","svg/SVGUtilities","svg/SVGShapes"],(e,t,n)=>{"use strict";const s="sans-serif",i={titleMargin:12,outerMargin:5,agentMargin:8,actionMargin:5,minActionMargin:5,agentLineHighlightRadius:4,agentCap:{box:{padding:{top:1,left:3,right:3,bottom:1},arrowBottom:11.1,boxAttrs:{fill:"#FFFFFF",stroke:"#000000","stroke-width":3,rx:4,ry:4},labelAttrs:{"font-family":s,"font-weight":"bold","font-size":14,"line-height":1.3,"text-anchor":"middle"}},cross:{size:20,render:({x:e,y:n,radius:s})=>t.make("path",Object.assign({d:"M"+(e-s)+" "+(n-s)+"l"+2*s+" "+2*s+"m0 "+2*-s+"l"+2*-s+" "+2*s},{fill:"none",stroke:"#000000","stroke-width":3,"stroke-linecap":"round"}))},bar:{height:4,render:({x:e,y:n,width:s,height:i})=>t.make("rect",{x:e,y:n,width:s,height:i,fill:"#000000",stroke:"#000000","stroke-width":3,rx:2,ry:2})},fade:{width:5,height:10},none:{height:10}},connect:{loopbackRadius:8,lineAttrs:{solid:{fill:"none",stroke:"#000000","stroke-width":3},dash:{fill:"none",stroke:"#000000","stroke-width":3,"stroke-dasharray":"10, 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i=null,r=0;for(n.lastIndex=0;i=n.exec(e);)i[1]&&s.push(i[1]),i[2]&&s.push(t(i[2])),r=n.lastIndex;const a=e.substr(r);return a&&s.push(a),s}}),n("sequence/CodeMirrorHints",["core/ArrayUtilities"],e=>{"use strict";function t(e,t){return{text:e,displayText:"\n"===e?"<END>":e.trim(),className:"\n"===e?"pick-virtual":null,from:i.test(e)?t.squashFrom:t.wordFrom,to:r.test(e)?t.squashTo:t.wordTo}}function n({global:e,prefix:t="",suffix:n=""},s){const i=s[e];return i?i.map(e=>t+e+n):[]}const s=/^([ \t]*)(.*)$/,i=/^[ \t\r\n:,]/,r=/[ \t\r\n]$/;return{getHints:function(i,r){const a=i.getCursor(),o=i.getTokenAt(a);let h=o.string;o.end>a.ch&&(h=h.substr(0,a.ch-o.start));const l=s.exec(h);h=l[2];const g=o.start+l[1].length,d=a.ch>0&&o.state.line.length>0;let c=d?o.state.completions:o.state.beginCompletions;d||(c=c.concat(o.state.knownAgent)),function(t,s={}){for(let i=0;i<t.length;)if("object"==typeof t[i]){const r=n(t[i],s);e.mergeSets(t,r),t.splice(i,1)}else++i}(c,i.options.globals);const u=function(e,t,n,s){const i=e.getLine(t),r={wordFrom:{line:t,ch:n},squashFrom:{line:t,ch:n},wordTo:{line:t,ch:s},squashTo:{line:t,ch:s}};return n>0&&" "===i[n-1]&&r.squashFrom.ch--," "===i[s]&&r.squashTo.ch++,r}(i,a.line,g,o.end);let p=!1;const m=c.filter(e=>e.startsWith(h)).map(e=>e!==h+" "||r.completeSingle?t(e,u):(p=!0,null)).filter(e=>null!==e);return p&&m.length>0&&m.unshift(t(h+" ",u)),{list:m,from:u.wordFrom,to:u.wordTo}}}}),n("sequence/Parser",["core/ArrayUtilities","./Tokeniser","./LabelPatternParser","./CodeMirrorHints"],(e,t,n,s)=>{"use strict";function i(e,t=null){let n="";return t&&(n=" at line "+(t.b.ln+1)+", character "+t.b.ch),new Error(e+n)}function r(e,t=0,n=null){if(null===n&&(n=e.length),n<=t)return"";let s=e[t].v;for(let i=t+1;i<n;++i)s+=e[i].s+e[i].v;return s}function a(e){return!e||e.q?null:e.v}function o(e,t,n,s=null){for(let r=0;r<n.length;++r){const o=n[r],h=e[t+r];if(a(h)!==o){if(s)throw i(s+'; expected "'+o+'"',h);return t}}return t+n.length}function h(e,t,n=0){for(let s=n;s<e.length;++s)if(a(e[s])===t)return s;return-1}function l(t,n,s,a){let o=-1;if(a&&(o=h(t,"as",n)),(-1===o||o>=s)&&(o=s),n>=o)throw i("Missing agent name",function(t,n){if(n<t.length)return t[n];const s=e.last(t);return s?{b:s.e}:null}(t,n));return{name:r(t,n,o),alias:r(t,o+1,s)}}function g(e,t,n,{flagTypes:s={},aliases:r=!1}={}){const o=[];let h=t;for(;h<n;++h){const t=e[h],n=a(t),r=s[n];if(!r)break;if(o.includes(r))throw i("Duplicate agent flag: "+n,t);o.push(r)}const{name:g,alias:d}=l(e,h,n,r);return{name:g,alias:d,flags:o}}function d(e,t,n,s){const i=[];let r=-1;for(let o=t;o<n;++o){","===a(e[o])?-1!==r&&(i.push(g(e,r,o,s)),r=-1):-1===r&&(r=o)}return-1!==r&&i.push(g(e,r,n,s)),i}const c={if:{type:"block begin",mode:"if",skip:[]},else:{type:"block split",mode:"else",skip:["if"]},repeat:{type:"block begin",mode:"repeat",skip:[]}},u=(()=>{const t=e.combine([[{tok:"",type:0},{tok:"<",type:1},{tok:"<<",type:2}],[{tok:"-",type:"solid"},{tok:"--",type:"dash"},{tok:"~",type:"wave"}],[{tok:"",type:0},{tok:">",type:1},{tok:">>",type:2}]]).filter(e=>0!==e[0].type||0!==e[2].type),n=new Map;return t.forEach(e=>{n.set(e.map(e=>e.tok).join(""),{line:e[1].type,left:e[0].type,right:e[2].type})}),n})(),p={"*":"begin","+":"start","-":"stop","!":"end"},m=["none","box","cross","fade","bar"],f={text:{mode:"text",types:{left:{type:"note left",skip:["of"],min:0,max:null},right:{type:"note right",skip:["of"],min:0,max:null}}},note:{mode:"note",types:{over:{type:"note over",skip:[],min:0,max:null},left:{type:"note left",skip:["of"],min:0,max:null},right:{type:"note right",skip:["of"],min:0,max:null},between:{type:"note between",skip:[],min:2,max:null}}},state:{mode:"state",types:{over:{type:"note over",skip:[],min:1,max:1}}}},b={define:{type:"agent define"},begin:{type:"agent begin",mode:"box"},end:{type:"agent end",mode:"cross"}},y=[(e,t)=>"title"!==a(e[0])?null:(t.title=r(e,1),!0),(e,t)=>"theme"!==a(e[0])?null:(t.theme=r(e,1),!0),(e,t)=>{if("terminators"!==a(e[0]))return null;const n=a(e[1]);if(!n)throw i("Unspecified termination",e[0]);if(-1===m.indexOf(n))throw i('Unknown termination "'+n+'"',e[1]);return t.terminators=n,!0},(e,t)=>{if("headers"!==a(e[0]))return null;const n=a(e[1]);if(!n)throw i("Unspecified header",e[0]);if(-1===m.indexOf(n))throw i('Unknown header "'+n+'"',e[1]);return t.headers=n,!0},e=>{if("autolabel"!==a(e[0]))return null;let t=null;return t="off"===a(e[1])?"<label>":r(e,1),{type:"label pattern",pattern:n(t)}},e=>{if("end"===a(e[0])&&1===e.length)return{type:"block end"};const t=c[a(e[0])];if(!t)return null;let n=1;return e.length>n&&(n=o(e,n,t.skip,"Invalid block command")),n=o(e,n,[":"]),{type:t.type,mode:t.mode,label:r(e,n)}},e=>{if("begin"!==a(e[0])||"reference"!==a(e[1]))return null;let t=[];const n=h(e,":");if("over"===a(e[2])&&n>3)t=d(e,3,n);else if(2!==n)throw i('Expected ":" or "over"',e[2]);const s=g(e,n+1,e.length,{aliases:!0});if(!s.alias)throw i("Reference must have an alias",e[n]);return{type:"group begin",agents:t,mode:"ref",label:s.name,alias:s.alias}},e=>{const t=b[a(e[0])];return!t||e.length<=1?null:Object.assign({agents:d(e,1,e.length,{aliases:!0})},t)},t=>{if("simultaneously"!==a(t[0]))return null;if(":"!==a(e.last(t)))return null;let n="";if(t.length>2){if("with"!==a(t[1]))return null;n=r(t,2,t.length-1)}return{type:"async",target:n}},e=>{const t=f[a(e[0])],n=h(e,":");if(!t||-1===n)return null;const s=t.types[a(e[1])];if(!s)return null;let l=2;const g=d(e,l=o(e,l,s.skip),n);if(g.length<s.min)throw i("Too few agents for "+t.mode,e[0]);if(null!==s.max&&g.length>s.max)throw i("Too many agents for "+t.mode,e[0]);return{type:s.type,agents:g,mode:t.mode,label:r(e,n+1)}},e=>{let t=h(e,":");-1===t&&(t=e.length);let n=-1,s=null;for(let t=0;t<e.length;++t){const i=u.get(a(e[t]));if(i){n=t,s=i;break}}if(n<=0||n>=t-1)return null;const i={flagTypes:p};return{type:"connect",agents:[g(e,0,n,i),g(e,n+1,t,i)],label:r(e,t+1),options:s}},t=>t.length<2||":"!==a(e.last(t))?null:{type:"mark",name:r(t,0,t.length-1)}],x=new t;return class{getCodeMirrorMode(){return x.getCodeMirrorMode(Array.from(u.keys()))}getCodeMirrorHints(){return s.getHints}parseLines(e){const t={meta:{title:"",theme:"",terminators:"none",headers:"box"},stages:[]};return e.forEach(e=>(function(e,{meta:t,stages:n}){let s=null;for(let n=0;n<y.length&&!(s=y[n](e,t));++n);if(!s)throw i("Unrecognised command: "+r(e),e[0]);"object"==typeof s&&(s.ln=e[0].b.ln,n.push(s))})(e,t)),t}parse(e){const t=x.tokenise(e),n=x.splitLines(t);return this.parseLines(n)}}}),n("sequence/Generator",["core/ArrayUtilities"],e=>{"use strict";function t(e,t){const n=c[e.type];return!(!n||e.type!==t.type)&&!n.check.some(n=>e[n]!==t[n])}function n(t,n){c[t.type].merge.forEach(s=>{e.mergeSets(t[s],n[s])})}function s(e,t){for(let n=0;n<e.length;){t(e[n],n)?e.splice(n,1):++n}}function i(e){s(e,(s,i)=>{for(let r=0;r<i;++r)if(t(e[r],s))return n(e[r],s),!0;return!1})}function r(e){const t=new Set,n=e.map(({type:e})=>e);return n.forEach(e=>{const s=c[e];s&&n.every(t=>e===t||s.siblings.has(t))&&t.add(e)}),t}function a(e,i,r,a){s(a,s=>{if(!e.has(s.type)||!i.has(s.type))return!1;for(let e=0;e<r.length;++e)if(t(r[e],s))return n(r[e],s),!0;return!1})}function o(e){let t=[],n=new Set;for(let s=0;s<e.length;){const o=e[s];let h=null;i(h="parallel"===o.type?o.stages:[o]);const l=r(h);a(n,l,t,h),n=l,t=h,0===h.length?e.splice(s,1):"parallel"===o.type&&1===h.length?(e.splice(s,1,h[0]),++s):++s}}function h(e,t){if("agent begin"===e.type)return e.mode=t,!0;if("parallel"===e.type){let n=!1;return e.stages.forEach(e=>{"agent begin"===e.type&&(e.mode=t,n=!0)}),n}return!1}function l(t,n,s,i=null){e.remove(t,n,d.equals),e.remove(t,s,d.equals);let r=0,a=t.length;if(i){const n=i.map(n=>e.indexOf(t,n,d.equals)).filter(e=>-1!==e);r=n.reduce((e,t)=>Math.min(e,t),t.length),a=n.reduce((e,t)=>Math.max(e,t),r)+1}return t.splice(r,0,n),t.splice(a+1,0,s),{indexL:r,indexR:a+1}}class g{constructor({visible:e=!1,locked:t=!1,blocked:n=!1,highlighted:s=!1,group:i=null,covered:r=!1}={}){this.visible=e,this.locked=t,this.blocked=n,this.highlighted=s,this.group=i,this.covered=r}}g.LOCKED=new g({locked:!0}),g.DEFAULT=new g;const d={equals:(e,t)=>e.name===t.name,make:(e,{anchorRight:t=!1}={})=>({name:e,anchorRight:t}),getName:e=>e.name,hasFlag:(e,t=!0)=>n=>n.flags.includes(e)===t},c={"agent begin":{check:["mode"],merge:["agentNames"],siblings:new Set(["agent highlight"])},"agent end":{check:["mode"],merge:["agentNames"],siblings:new Set(["agent highlight"])},"agent highlight":{check:["highlighted"],merge:["agentNames"],siblings:new Set(["agent begin","agent end"])}},u={"note over":[{name:"[",flags:[]},{name:"]",flags:[]}],"note left":[{name:"[",flags:[]}],"note right":[{name:"]",flags:[]}]};return class{constructor(){this.agentStates=new Map,this.agentAliases=new Map,this.activeGroups=new Map,this.agents=[],this.labelPattern=null,this.blockCount=0,this.nesting=[],this.markers=new Set,this.currentSection=null,this.currentNest=null,this.stageHandlers={"block begin":this.handleBlockBegin.bind(this),"block split":this.handleBlockSplit.bind(this),"block end":this.handleBlockEnd.bind(this),"group begin":this.handleGroupBegin.bind(this),mark:this.handleMark.bind(this),async:this.handleAsync.bind(this),"agent define":this.handleAgentDefine.bind(this),"agent begin":this.handleAgentBegin.bind(this),"agent end":this.handleAgentEnd.bind(this),"label pattern":this.handleLabelPattern.bind(this),connect:this.handleConnect.bind(this),"note over":this.handleNote.bind(this),"note left":this.handleNote.bind(this),"note right":this.handleNote.bind(this),"note between":this.handleNote.bind(this)},this.expandGroupedAgent=this.expandGroupedAgent.bind(this),this.handleStage=this.handleStage.bind(this),this.convertAgent=this.convertAgent.bind(this),this.endGroup=this.endGroup.bind(this)}convertAgent({alias:e,name:t}){if(e){if(this.agentAliases.has(t))throw new Error("Cannot alias "+t+"; it is already an alias");const n=this.agentAliases.get(e);if(n&&n!==e||this.agents.some(t=>t.name===e))throw new Error("Cannot use "+e+" as an alias; it is already in use");this.agentAliases.set(e,t)}return d.make(this.agentAliases.get(t)||t)}addStage(e,t=!0){e&&(void 0===e.ln&&(e.ln=this.latestLine),this.currentSection.stages.push(e),t&&(this.currentNest.hasContent=!0))}addParallelStages(e){const t=e.filter(e=>Boolean(e));if(0!==t.length)return 1===t.length?this.addStage(t[0]):(t.forEach(e=>{void 0===e.ln&&(e.ln=this.latestLine)}),this.addStage({type:"parallel",stages:t}))}defineAgents(t){e.mergeSets(this.currentNest.agents,t,d.equals),e.mergeSets(this.agents,t,d.equals)}getAgentState(e){return this.agentStates.get(e.name)||g.DEFAULT}updateAgentState(e,t){const n=this.agentStates.get(e.name);n?Object.assign(n,t):this.agentStates.set(e.name,new g(t))}validateAgents(e,{allowGrouped:t=!1,rejectGrouped:n=!1}={}){e.forEach(e=>{const s=this.getAgentState(e);if(s.covered)throw new Error("Agent "+e.name+" is hidden behind group");if(n&&null!==s.group)throw new Error("Agent "+e.name+" is in a group");if(s.blocked&&(!t||null===s.group))throw new Error("Duplicate agent name: "+e.name);if(e.name.startsWith("__"))throw new Error(e.name+" is a reserved name")})}setAgentVis(e,t,n,s=!1){const i=new Set,r=e.filter(e=>{if(i.has(e.name))return!1;i.add(e.name);const n=this.getAgentState(e);if(n.locked||n.blocked){if(s)throw new Error("Cannot begin/end agent: "+e.name);return!1}return n.visible!==t});return 0===r.length?null:(r.forEach(e=>{this.updateAgentState(e,{visible:t})}),this.defineAgents(r),{type:t?"agent begin":"agent end",agentNames:r.map(d.getName),mode:n})}setAgentHighlight(e,t,n=!1){const s=e.filter(e=>{const s=this.getAgentState(e);if(s.locked||s.blocked){if(n)throw new Error("Cannot highlight agent: "+e.name);return!1}return s.visible&&s.highlighted!==t});return 0===s.length?null:(s.forEach(e=>{this.updateAgentState(e,{highlighted:t})}),{type:"agent highlight",agentNames:s.map(d.getName),highlighted:t})}beginNested(e,t,n,s){const i=d.make(n+"[",{anchorRight:!0}),r=d.make(n+"]"),a=[i,r],o=[];return this.currentSection={header:{type:"block begin",mode:e,label:t,left:i.name,right:r.name,ln:s},stages:o},this.currentNest={mode:e,agents:a,leftAgent:i,rightAgent:r,hasContent:!1,sections:[this.currentSection]},this.agentStates.set(i.name,g.LOCKED),this.agentStates.set(r.name,g.LOCKED),this.nesting.push(this.currentNest),{agents:a,stages:o}}nextBlockName(){const e="__BLOCK"+this.blockCount;return++this.blockCount,e}handleBlockBegin({ln:e,mode:t,label:n}){this.beginNested(t,n,this.nextBlockName(),e)}handleBlockSplit({ln:e,mode:t,label:n}){if("if"!==this.currentNest.mode)throw new Error('Invalid block nesting ("else" inside '+this.currentNest.mode+")");o(this.currentSection.stages),this.currentSection={header:{type:"block split",mode:t,label:n,left:this.currentNest.leftAgent.name,right:this.currentNest.rightAgent.name,ln:e},stages:[]},this.currentNest.sections.push(this.currentSection)}handleBlockEnd(){if(this.nesting.length<=1)throw new Error('Invalid block nesting (too many "end"s)');o(this.currentSection.stages);const t=this.nesting.pop();if(this.currentNest=e.last(this.nesting),this.currentSection=e.last(this.currentNest.sections),!t.hasContent)throw new Error("Empty block");this.defineAgents(t.agents),l(this.agents,t.leftAgent,t.rightAgent,t.agents),t.sections.forEach(e=>{this.currentSection.stages.push(e.header),this.currentSection.stages.push(...e.stages)}),this.addStage({type:"block end",left:t.leftAgent.name,right:t.rightAgent.name})}makeGroupDetails(t,n){const s=t.map(this.convertAgent);if(this.validateAgents(s,{rejectGrouped:!0}),this.agentStates.has(n))throw new Error("Duplicate agent name: "+n);const i=this.nextBlockName(),r=d.make(i+"[",{anchorRight:!0}),a=d.make(i+"]");this.agentStates.set(r.name,g.LOCKED),this.agentStates.set(a.name,g.LOCKED),this.updateAgentState({name:n},{blocked:!0,group:n}),this.defineAgents(s);const{indexL:o,indexR:h}=l(this.agents,r,a,s),c=[],u=s.slice();for(let e=o+1;e<h;++e)c.push(this.agents[e]);return e.removeAll(c,u,d.equals),{colAgents:s,leftAgent:r,rightAgent:a,agentsContained:u,agentsCovered:c}}handleGroupBegin({agents:e,mode:t,label:n,alias:s}){const i=this.makeGroupDetails(e,s);i.agentsContained.forEach(e=>{this.updateAgentState(e,{group:s})}),i.agentsCovered.forEach(e=>{this.updateAgentState(e,{covered:!0})}),this.activeGroups.set(s,i),this.addStage(this.setAgentVis(i.colAgents,!0,"box")),this.addStage({type:"block begin",mode:t,label:n,left:i.leftAgent.name,right:i.rightAgent.name})}endGroup({name:e}){const t=this.activeGroups.get(e);return t?(this.activeGroups.delete(e),t.agentsContained.forEach(e=>{this.updateAgentState(e,{group:null})}),t.agentsCovered.forEach(e=>{this.updateAgentState(e,{covered:!1})}),this.updateAgentState({name:e},{group:null}),{type:"block end",left:t.leftAgent.name,right:t.rightAgent.name}):null}handleMark({name:e}){this.markers.add(e),this.addStage({type:"mark",name:e},!1)}handleAsync({target:e}){if(""!==e&&!this.markers.has(e))throw new Error("Unknown marker: "+e);this.addStage({type:"async",target:e},!1)}handleLabelPattern({pattern:e}){this.labelPattern=e.slice();for(let e=0;e<this.labelPattern.length;++e){const t=this.labelPattern[e];"object"==typeof t&&void 0!==t.start&&(this.labelPattern[e]=Object.assign({current:t.start},t))}}applyLabelPattern(e){let t="";const n={label:e};return this.labelPattern.forEach(e=>{"string"==typeof e?t+=e:void 0!==e.token?t+=n[e.token]:void 0!==e.current&&(t+=e.current.toFixed(e.dp),e.current+=e.inc)}),t}expandGroupedAgent(e){const t=this.getAgentState(e).group;if(!t)return[e];const n=this.activeGroups.get(t);return[n.leftAgent,n.rightAgent]}expandGroupedAgentConnection(t){const n=this.expandGroupedAgent(t[0]),s=this.expandGroupedAgent(t[1]);let i=e.indexOf(this.agents,n[0],d.equals),r=e.indexOf(this.agents,s[0],d.equals);return-1===i&&(i=this.agents.length),-1===r&&(r=this.agents.length),i===r?[e.last(n),e.last(s)]:i<r?[e.last(n),s[0]]:[n[0],e.last(s)]}filterConnectFlags(t){const n=t.filter(d.hasFlag("begin")).map(this.convertAgent),s=t.filter(d.hasFlag("end")).map(this.convertAgent);if(e.hasIntersection(n,s,d.equals))throw new Error("Cannot set agent visibility multiple times");const i=t.filter(d.hasFlag("start")).map(this.convertAgent),r=t.filter(d.hasFlag("stop")).map(this.convertAgent);if(e.mergeSets(r,s),e.hasIntersection(i,r,d.equals))throw new Error("Cannot set agent highlighting multiple times");return this.validateAgents(n),this.validateAgents(s),this.validateAgents(i),this.validateAgents(r),{beginAgents:n,endAgents:s,startAgents:i,stopAgents:r}}handleConnect({agents:t,label:n,options:s}){const i=this.filterConnectFlags(t);let r=t.map(this.convertAgent);this.validateAgents(r,{allowGrouped:!0});const a=e.flatMap(r,this.expandGroupedAgent);this.defineAgents(a);const o=(r=this.expandGroupedAgentConnection(r)).map(d.getName),h=t.filter(d.hasFlag("begin",!1)).map(this.convertAgent);this.addStage(this.setAgentVis(h,!0,"box"));const l={type:"connect",agentNames:o,label:this.applyLabelPattern(n),options:s};this.addParallelStages([this.setAgentVis(i.beginAgents,!0,"box",!0),this.setAgentHighlight(i.startAgents,!0,!0),l,this.setAgentHighlight(i.stopAgents,!1,!0),this.setAgentVis(i.endAgents,!1,"cross",!0)])}handleNote({type:t,agents:n,mode:s,label:i}){let r=null;r=0===n.length?u[t]||[]:n.map(this.convertAgent),this.validateAgents(r,{allowGrouped:!0});const a=(r=e.flatMap(r,this.expandGroupedAgent)).map(d.getName),o=new Set(a).size;if("note between"===t&&o<2)throw new Error("note between requires at least 2 agents");this.addStage(this.setAgentVis(r,!0,"box")),this.defineAgents(r),this.addStage({type:t,agentNames:a,mode:s,label:i})}handleAgentDefine({agents:e}){const t=e.map(this.convertAgent);this.validateAgents(t),this.defineAgents(t)}handleAgentBegin({agents:e,mode:t}){const n=e.map(this.convertAgent);this.validateAgents(n),this.addStage(this.setAgentVis(n,!0,t,!0))}handleAgentEnd({agents:e,mode:t}){const n=e.filter(e=>this.activeGroups.has(e.name)),s=e.filter(e=>!this.activeGroups.has(e.name)).map(this.convertAgent);this.validateAgents(s),this.addParallelStages([this.setAgentHighlight(s,!1),this.setAgentVis(s,!1,t,!0),...n.map(this.endGroup)])}handleStage(e){this.latestLine=e.ln;try{const t=this.stageHandlers[e.type];if(!t)throw new Error("Unknown command: "+e.type);t(e)}catch(t){if("object"==typeof t&&t.message)throw new Error(t.message+" at line "+(e.ln+1))}}generate({stages:e,meta:t={}}){this.agentStates.clear(),this.markers.clear(),this.agentAliases.clear(),this.activeGroups.clear(),this.agents.length=0,this.blockCount=0,this.nesting.length=0,this.labelPattern=[{token:"label"}];const n=this.beginNested("global","","",0);if(e.forEach(this.handleStage),1!==this.nesting.length)throw new Error("Unterminated section at line "+(this.currentSection.header.ln+1));if(this.activeGroups.size>0)throw new Error("Unterminated group");const s=t.terminators||"none";return this.addParallelStages([this.setAgentHighlight(this.agents,!1),this.setAgentVis(this.agents,!1,s)]),l(this.agents,this.currentNest.leftAgent,this.currentNest.rightAgent),o(n.stages),function(e,t){for(let n=0;n<e.length&&!h(e[n],t);++n);}(n.stages,t.headers||"box"),{meta:{title:t.title,theme:t.theme},agents:this.agents.slice(),stages:n.stages}}}}),n("svg/SVGUtilities",[],()=>{"use strict";function e(e,n={}){const s=document.createElementNS(t,e);for(let e in n)n.hasOwnProperty(e)&&s.setAttribute(e,n[e]);return s}const t="http://www.w3.org/2000/svg";return{makeText:function(e=""){return document.createTextNode(e)},make:e,makeContainer:function(n={}){return e("svg",Object.assign({xmlns:t,version:"1.1"},n))},empty:function(e){for(;e.childNodes.length>0;)e.removeChild(e.lastChild)}}}),n("svg/SVGTextBlock",["./SVGUtilities"],e=>{"use strict";function t(e){const t=Number(e["font-size"]);return{size:t,lineHeight:t*(Number(e["line-height"])||1)}}const n=void 0!==window.InstallTrigger;class s{constructor(e,t={}){this.container=e,this.state={attrs:{},text:"",x:0,y:0},this.width=0,this.height=0,this.nodes=[],this.set(t)}_rebuildNodes(t){if(t>this.nodes.length){const n=Object.assign({x:this.state.x},this.state.attrs);for(;this.nodes.length<t;){const t=e.make("text",n),s=e.makeText();t.appendChild(s),this.container.appendChild(t),this.nodes.push({element:t,text:s})}}else for(;this.nodes.length>t;){const{element:e}=this.nodes.pop();this.container.removeChild(e)}}_reset(){this._rebuildNodes(0),this.width=0,this.height=0}_renderText(){if(!this.state.text)return void this._reset();const e=this.state.text.split("\n");this._rebuildNodes(e.length);let t=0;this.nodes.forEach(({text:n,element:s},i)=>{n.nodeValue!==e[i]&&(n.nodeValue=e[i]),t=Math.max(t,s.getComputedTextLength())}),this.width=t}_updateX(){this.nodes.forEach(({element:e})=>{e.setAttribute("x",this.state.x)})}_updateY(){const{size:e,lineHeight:n}=t(this.state.attrs);this.nodes.forEach(({element:t},s)=>{t.setAttribute("y",this.state.y+s*n+e)}),this.height=n*this.nodes.length}firstLine(){return this.nodes.length>0?this.nodes[0].element:null}set(e){const t=Object.assign({},this.state);!function(e,t){for(let n in e)e.hasOwnProperty(n)&&null!==t[n]&&void 0!==t[n]&&(e[n]=t[n])}(this.state,e),this.state.attrs!==t.attrs&&(this._reset(),t.text="");const n=this.nodes.length;this.state.text!==t.text&&this._renderText(),this.state.x!==t.x&&this._updateX(),this.state.y===t.y&&this.nodes.length===n||this._updateY()}}class i{constructor(t){this.testers=e.make("g",{display:n?"block":"none",visibility:"hidden"}),this.container=t,this.cache=new Map}measure(n,s){if(!s)return{width:0,height:0};let i=this.cache.get(n);if(!i){const t=e.makeText(),s=e.make("text",n);s.appendChild(t),this.testers.appendChild(s),i={text:t,node:s},this.cache.set(n,i)}this.testers.parentNode||this.container.appendChild(this.testers);const r=s.split("\n");let a=0;return r.forEach(e=>{i.text.nodeValue=e,a=Math.max(a,i.node.getComputedTextLength())}),{width:a,height:r.length*t(n).lineHeight}}measureHeight(e,n){if(!n)return 0;return n.split("\n").length*t(e).lineHeight}resetCache(){e.empty(this.testers),this.cache.clear()}detach(){this.testers.parentNode&&this.container.removeChild(this.testers)}}return s.SizeTester=i,s}),n("svg/SVGShapes",["./SVGUtilities","./SVGTextBlock"],(e,t)=>{"use strict";function n(t,n){return e.make("rect",Object.assign({},n,t))}return{renderBox:n,renderNote:function(t,n,s){const i=e.make("g"),r=s.x,a=s.x+s.width,o=s.y,h=s.y+s.height;return i.appendChild(e.make("polygon",Object.assign({points:r+" "+o+" "+(a-7)+" "+o+" "+a+" "+(o+7)+" "+a+" "+h+" "+r+" "+h},t))),i.appendChild(e.make("polyline",Object.assign({points:a-7+" "+o+" "+(a-7)+" "+(o+7)+" "+a+" "+(o+7)},n))),i},renderBoxedText:function(e,{x:s,y:i,padding:r,boxAttrs:a,labelAttrs:o,boxLayer:h,labelLayer:l,boxRenderer:g=null,SVGTextBlockClass:d=t}){if(!e)return{width:0,height:0,label:null,box:null};let c=0,u=s;switch(o["text-anchor"]){case"middle":c=.5,u+=(r.left-r.right)/2;break;case"end":c=1,u-=r.right;break;default:c=0,u+=r.left}const p=new d(l,{attrs:o,text:e,x:u,y:i+r.top}),m=p.width+r.left+r.right,f=p.height+r.top+r.bottom;let b=null;return b=g?g({x:u-p.width*c-r.left,y:i,width:m,height:f}):n(a,{x:u-p.width*c-r.left,y:i,width:m,height:f}),h===l?h.insertBefore(b,p.firstLine()):h.appendChild(b),{width:m,height:f,label:p,box:b}},TextBlock:t}}),n("sequence/components/BaseComponent",[],()=>{"use strict";class e{makeState(){}resetState(e){this.makeState(e)}separationPre(){}separation(){}renderPre(){}render(){}}e.cleanRenderPreResult=(({topShift:e=0,agentNames:t=[],asynchronousY:n=null}={},s=null)=>({topShift:e,agentNames:t,asynchronousY:null!==n?n:s}));const t=new Map;return e.register=((e,n)=>{t.set(e,n)}),e.getComponents=(()=>t),e}),n("sequence/components/Block",["./BaseComponent","core/ArrayUtilities","svg/SVGUtilities","svg/SVGShapes"],(e,t,n,s)=>{"use strict";class i extends e{separation({left:e,right:t,mode:n,label:s},i){const r=i.theme.block.section,a=i.textSizer.measure(r.mode.labelAttrs,n).width+r.mode.padding.left+r.mode.padding.right+i.textSizer.measure(r.label.labelAttrs,s).width+r.label.padding.left+r.label.padding.right;i.addSeparation(e,t,a)}renderPre({left:e,right:t}){return{agentNames:[e,t]}}render({left:e,right:t,mode:i,label:r},a,o=!1){const h=a.theme.block,l=a.agentInfos.get(e),g=a.agentInfos.get(t),{hold:d}=a.state.blocks.get(e);let c=a.primaryY;o||(c+=h.section.padding.bottom,d.appendChild(n.make("line",Object.assign({x1:l.x,y1:c,x2:g.x,y2:c},h.separator.attrs))));const u=a.makeRegion(),p=s.renderBoxedText(i,{x:l.x,y:c,padding:h.section.mode.padding,boxAttrs:h.section.mode.boxAttrs,labelAttrs:h.section.mode.labelAttrs,boxLayer:d,labelLayer:u,SVGTextBlockClass:a.SVGTextBlockClass}),m=s.renderBoxedText(r,{x:l.x+p.width,y:c,padding:h.section.label.padding,boxAttrs:{fill:"#000000"},labelAttrs:h.section.label.labelAttrs,boxLayer:a.maskLayer,labelLayer:u,SVGTextBlockClass:a.SVGTextBlockClass}),f=Math.max(p.height,m.height);return u.insertBefore(n.make("rect",{x:l.x,y:c,width:g.x-l.x,height:f,fill:"transparent"}),u.firstChild),c+f+h.section.padding.top}}class r extends i{makeState(e){e.blocks=new Map}resetState(e){e.blocks.clear()}separation(e,n){t.mergeSets(n.visibleAgents,[e.left,e.right]),super.separation(e,n)}renderPre({left:e,right:t},n){return{agentNames:[e,t],topShift:n.theme.block.margin.top}}render(e,t){const s=n.make("g");return t.blockLayer.appendChild(s),t.state.blocks.set(e.left,{hold:s,mode:e.mode,startY:t.primaryY}),super.render(e,t,!0)}}class a extends e{separation({left:e,right:n},s){t.removeAll(s.visibleAgents,[e,n])}renderPre({left:e,right:t},n){return{agentNames:[e,t],topShift:n.theme.block.section.padding.bottom}}render({left:e,right:t},s){const i=s.theme.block,r=s.agentInfos.get(e),a=s.agentInfos.get(t),{hold:o,startY:h,mode:l}=s.state.blocks.get(e),g=i.modes[l]||i.modes[""];return o.appendChild(n.make("rect",Object.assign({x:r.x,y:h,width:a.x-r.x,height:s.primaryY-h},g.boxAttrs))),s.primaryY+i.margin.bottom+s.theme.actionMargin}}return e.register("block begin",new r),e.register("block split",new i),e.register("block end",new a),{BlockBegin:r,BlockSplit:i,BlockEnd:a}}),n("sequence/components/Parallel",["./BaseComponent","core/ArrayUtilities"],(e,t)=>{"use strict";function n(e,n){return t.mergeSets(e.agentNames,n.agentNames),{topShift:Math.max(e.topShift,n.topShift),agentNames:e.agentNames,asynchronousY:function(e=null,t=null){return null===e?t:null===t?e:Math.max(e,t)}(e.asynchronousY,n.asynchronousY)}}class s extends e{separationPre(e,t){e.stages.forEach(e=>{t.components.get(e.type).separationPre(e,t)})}separation(e,t){e.stages.forEach(e=>{t.components.get(e.type).separation(e,t)})}renderPre(t,s){return t.stages.map(t=>{const n=s.components.get(t.type).renderPre(t,s);return e.cleanRenderPreResult(n)}).reduce(n,{topShift:0,agentNames:[],asynchronousY:null})}render(e,t){const n=t.makeRegion;let s=0;return e.stages.forEach(e=>{t.makeRegion=((t,s=null)=>n(t,s||e));const i=t.components.get(e.type).render(e,t)||0;s=Math.max(s,i)}),t.makeRegion=n,s}}return e.register("parallel",new s),s}),n("sequence/components/Marker",["./BaseComponent"],e=>{"use strict";class t extends e{makeState(e){e.marks=new Map}resetState(e){e.marks.clear()}render({name:e},{topY:t,state:n}){n.marks.set(e,t)}}class n extends e{renderPre({target:e},{state:t}){let n=0;return e&&t.marks&&(n=t.marks.get(e)||0),{asynchronousY:n}}}return e.register("mark",new t),e.register("async",new n),{Mark:t,Async:n}}),n("sequence/components/AgentCap",["./BaseComponent","core/ArrayUtilities","svg/SVGUtilities","svg/SVGShapes"],(e,t,n,s)=>{"use strict";class i{separation({label:e},t){const n=t.theme.agentCap.box,s=t.textSizer.measure(n.labelAttrs,e).width+n.padding.left+n.padding.right;return{left:s/2,right:s/2,radius:s/2}}topShift({label:e},t){const n=t.theme.agentCap.box,s=t.textSizer.measureHeight(n.labelAttrs,e)+n.padding.top+n.padding.bottom;return Math.max(0,s-n.arrowBottom)}render(e,{x:t,label:i},r){const a=r.theme.agentCap.box,o=r.makeRegion(),{width:h,height:l}=s.renderBoxedText(i,{x:t,y:e,padding:a.padding,boxAttrs:a.boxAttrs,boxRenderer:a.boxRenderer,labelAttrs:a.labelAttrs,boxLayer:r.shapeLayer,labelLayer:o,SVGTextBlockClass:r.SVGTextBlockClass});return o.insertBefore(n.make("rect",{x:t-h/2,y:e,width:h,height:l,fill:"transparent"}),o.firstChild),{lineTop:0,lineBottom:l,height:l}}}class r{separation(e,t){const n=t.theme.agentCap.cross;return{left:n.size/2,right:n.size/2,radius:0}}topShift(e,t){return t.theme.agentCap.cross.size/2}render(e,{x:t},s){const i=s.theme.agentCap.cross,r=i.size/2;return s.shapeLayer.appendChild(i.render({x:t,y:e+r,radius:r})),s.makeRegion().appendChild(n.make("rect",{x:t-r,y:e,width:2*r,height:2*r,fill:"transparent"})),{lineTop:r,lineBottom:r,height:2*r}}}class a{separation({label:e},t){const n=t.theme.agentCap.box,s=t.textSizer.measure(n.labelAttrs,e).width+n.padding.left+n.padding.right;return{left:s/2,right:s/2,radius:s/2}}topShift(e,t){return t.theme.agentCap.bar.height/2}render(e,{x:t,label:s},i){const r=i.theme.agentCap.box,a=i.theme.agentCap.bar,o=i.textSizer.measure(r.labelAttrs,s).width+r.padding.left+r.padding.right,h=a.height;return i.shapeLayer.appendChild(a.render({x:t-o/2,y:e,width:o,height:h})),i.makeRegion().appendChild(n.make("rect",{x:t-o/2,y:e,width:o,height:h,fill:"transparent"})),{lineTop:0,lineBottom:h,height:h}}}class o{separation({currentRad:e}){return{left:e,right:e,radius:e}}topShift(e,t,n){const s=t.theme.agentCap.fade;return n?s.height:0}render(e,{x:t,label:s},i,r){const a=i.theme.agentCap.fade,o=i.addDef(r?"FadeIn":"FadeOut",()=>{const e=n.make("linearGradient",{x1:"0%",y1:r?"100%":"0%",x2:"0%",y2:r?"0%":"100%"});return e.appendChild(n.make("stop",{offset:100/12+"%","stop-color":"#FFFFFF"})),e.appendChild(n.make("stop",{offset:1100/12+"%","stop-color":"#000000"})),e});return i.maskLayer.appendChild(n.make("rect",{x:t-a.width/2,y:e-.1*a.height,width:a.width,height:1.2*a.height,fill:"url(#"+o+")"})),i.makeRegion().appendChild(n.make("rect",{x:t-a.width/2,y:e,width:a.width,height:a.height,fill:"transparent"})),{lineTop:a.height,lineBottom:0,height:a.height}}}class h{separation({currentRad:e}){return{left:e,right:e,radius:e}}topShift(e,t){return t.theme.agentCap.none.height}render(e,{x:t},s){const i=s.theme.agentCap.none;return s.makeRegion().appendChild(n.make("rect",{x:t-5,y:e,width:10,height:i.height,fill:"transparent"})),{lineTop:i.height,lineBottom:0,height:i.height}}}const l={box:new i,cross:new r,bar:new a,fade:new o,none:new h};class g extends e{constructor(e){super(),this.begin=e}separationPre({mode:e,agentNames:t},n){t.forEach(t=>{const s=n.agentInfos.get(t),i=l[e].separation(s,n,this.begin);n.addSpacing(t,i),s.currentMaxRad=Math.max(s.currentMaxRad,i.radius)})}separation({mode:e,agentNames:n},s){this.begin?t.mergeSets(s.visibleAgents,n):t.removeAll(s.visibleAgents,n)}renderPre({mode:e,agentNames:t},n){let s=0;return t.forEach(t=>{const i=n.agentInfos.get(t),r=l[e],a=r.topShift(i,n,this.begin);s=Math.max(s,a);const o=r.separation(i,n,this.begin).radius;i.currentMaxRad=Math.max(i.currentMaxRad,o)}),{agentNames:t,topShift:s}}render({mode:e,agentNames:t},n){let s=0;return t.forEach(t=>{const i=n.agentInfos.get(t),r=l[e],a=r.topShift(i,n,this.begin),o=n.primaryY-a,h=r.render(o,i,n,this.begin);s=Math.max(s,o+h.height),this.begin?n.drawAgentLine(t,o+h.lineBottom):n.drawAgentLine(t,o+h.lineTop,!0)}),s+n.theme.actionMargin}}return e.register("agent begin",new g(!0)),e.register("agent end",new g(!1)),g}),n("sequence/components/AgentHighlight",["./BaseComponent"],e=>{"use strict";class t extends e{radius(e,t){return e?t.theme.agentLineHighlightRadius:0}separationPre({agentNames:e,highlighted:t},n){const s=this.radius(t,n);e.forEach(e=>{const t=n.agentInfos.get(e);t.currentRad=s,t.currentMaxRad=Math.max(t.currentMaxRad,s)})}renderPre({agentNames:e,highlighted:t},n){const s=this.radius(t,n);e.forEach(e=>{const t=n.agentInfos.get(e);t.currentMaxRad=Math.max(t.currentMaxRad,s)})}render({agentNames:e,highlighted:t},n){const s=this.radius(t,n);return e.forEach(e=>{n.drawAgentLine(e,n.primaryY),n.agentInfos.get(e).currentRad=s}),n.primaryY+n.theme.actionMargin}}return e.register("agent highlight",new t),t}),n("sequence/components/Connect",["./BaseComponent","svg/SVGUtilities","svg/SVGShapes"],(e,t,n)=>{"use strict";function s(e){return[0,2*-e/3,-e,2*-e/3,0,2*e/3,e,2*e/3]}class i{constructor(e){this.propName=e}getConfig(e){return e.connect.arrow[this.propName]}short(e){const t=this.getConfig(e),n=t.attrs["stroke-linejoin"]||"miter",s=.5*t.attrs["stroke-width"],i=.5*e.agentLineAttrs["stroke-width"];if("round"===n)return i+s;{const e=t.height/2,n=t.width;return i+s*Math.sqrt(n*n/(e*e)+1)}}render(e,n,s,i){const r=this.getConfig(n),a=r.render||function({x:e,y:n,dx:s,dy:i,attrs:r}){return t.make("none"===r.fill?"polyline":"polygon",Object.assign({points:e+s+" "+(n-i)+" "+e+" "+n+" "+(e+s)+" "+(n+i)},r))};e.appendChild(a({x:s.x+this.short(n)*i,y:s.y,dx:r.width*i,dy:r.height/2,attrs:r.attrs}))}width(e){return this.short(e)+this.getConfig(e).width}height(e){return this.getConfig(e).height}lineGap(e,t){const n=this.getConfig(e),s=this.short(e);if("none"===n.attrs.fill){const e=n.height/2,i=n.width;return(s+(s+t["stroke-width"]/2*(i/e)))/2}return s+n.width/2}}const r=[{render:()=>{},width:()=>0,height:()=>0,lineGap:()=>0},new i("single"),new i("double")];class a extends e{separation({label:e,agentNames:t,options:n},s){const i=s.theme.connect,a=r[n.left],o=r[n.right];let h=s.textSizer.measure(i.label.attrs,e).width;h>0&&(h+=2*i.label.padding);const l=s.agentInfos.get(t[0]);if(t[0]===t[1])s.addSpacing(t[0],{left:0,right:l.currentMaxRad+Math.max(h+a.width(s.theme),o.width(s.theme))+i.loopbackRadius});else{const e=s.agentInfos.get(t[1]);s.addSeparation(t[0],t[1],l.currentMaxRad+e.currentMaxRad+h+2*Math.max(a.width(s.theme),o.width(s.theme)))}}renderSelfConnect({label:e,agentNames:i,options:a},o){const h=o.theme.connect,l=o.agentInfos.get(i[0]),g=r[a.left],d=r[a.right],c=e?o.textSizer.measureHeight(h.label.attrs,e)+h.label.margin.top+h.label.margin.bottom:0,u=l.x+l.currentMaxRad,p=o.primaryY,m=u+g.width(o.theme)+(e?h.label.padding:0),f=o.makeRegion(),b=n.renderBoxedText(e,{x:m-h.mask.padding.left,y:p-c+h.label.margin.top,padding:h.mask.padding,boxAttrs:{fill:"#000000"},labelAttrs:h.label.loopbackAttrs,boxLayer:o.maskLayer,labelLayer:f,SVGTextBlockClass:o.SVGTextBlockClass}),y=e?b.width+h.label.padding-h.mask.padding.left-h.mask.padding.right:0,x=h.loopbackRadius,k=Math.max(u+d.width(o.theme),m+y),w=p+2*x,A=h.line[a.line],v=(A.renderRev||function({xL:e,dx1:n,dx2:i,y1:r,y2:a,xR:o},h){const l=(a-r)/2,g=h["wave-width"],d=h["wave-height"];if(!g||!d)return{shape:t.make("path",Object.assign({d:"M"+(e+n)+" "+r+"L"+o+" "+r+"A"+l+" "+l+" 0 0 1 "+o+" "+a+"L"+(e+i)+" "+a},h)),p1:{x:e,y:r},p2:{x:e,y:a}};const c=s(d),u=g/c.length;let p=0,m="";for(let t=e+n;t+u<=o;t+=u)m+=t+" "+(r+c[p++%c.length])+" ";const f=(r+a)/2;for(let e=0;e+u/l<=Math.PI;e+=u/l){const t=c[p++%c.length];m+=o+Math.sin(e)*(l-t)+" "+(f-Math.cos(e)*(l-t))+" "}for(let t=o;t-u>=e+i;t-=u)m+=t+" "+(a-c[p++%c.length])+" ";return m+=e+i+" "+a,{shape:t.make("polyline",Object.assign({points:m},h)),p1:{x:e,y:r},p2:{x:e,y:a}}})({xL:u,dx1:g.lineGap(o.theme,A.attrs),dx2:d.lineGap(o.theme,A.attrs),y1:p,y2:w,xR:k},A.attrs);o.shapeLayer.appendChild(v.shape),g.render(o.shapeLayer,o.theme,v.p1,1),d.render(o.shapeLayer,o.theme,v.p2,1);const S=Math.max(c,g.height(o.theme)/2),C=d.height(o.theme)/2;return f.insertBefore(t.make("rect",{x:u,y:p-S,width:k+x-u,height:S+2*x+C,fill:"transparent"}),f.firstChild),w+Math.max(C+o.theme.minActionMargin,o.theme.actionMargin)}renderSimpleConnect({label:e,agentNames:i,options:a},o){const h=o.theme.connect,l=o.agentInfos.get(i[0]),g=o.agentInfos.get(i[1]),d=r[a.left],c=r[a.right],u=l.x<g.x?1:-1,p=o.textSizer.measureHeight(h.label.attrs,e)+h.label.margin.top+h.label.margin.bottom,m=l.x+l.currentMaxRad*u,f=g.x-g.currentMaxRad*u,b=o.primaryY,y=o.makeRegion();n.renderBoxedText(e,{x:(m+f)/2,y:b-p+h.label.margin.top,padding:h.mask.padding,boxAttrs:{fill:"#000000"},labelAttrs:h.label.attrs,boxLayer:o.maskLayer,labelLayer:y,SVGTextBlockClass:o.SVGTextBlockClass});const x=h.line[a.line],k=(x.render||function({x1:e,dx1:n,x2:i,dx2:r,y:a},o){const h=o["wave-width"],l=o["wave-height"];if(!h||!l)return{shape:t.make("line",Object.assign({x1:e+n,y1:a,x2:i+r,y2:a},o)),p1:{x:e,y:a},p2:{x:i,y:a}};const g=s(l),d=h/g.length;let c=0,u="";const p=Math.min(e+n,i+r),m=Math.max(e+n,i+r);for(let e=p;e+d<=m;e+=d)u+=e+" "+(a+g[c++%g.length])+" ";return u+=m+" "+a,{shape:t.make("polyline",Object.assign({points:u},o)),p1:{x:e,y:a},p2:{x:i,y:a}}})({x1:m,dx1:d.lineGap(o.theme,x.attrs)*u,x2:f,dx2:-c.lineGap(o.theme,x.attrs)*u,y:b},x.attrs);o.shapeLayer.appendChild(k.shape),d.render(o.shapeLayer,o.theme,k.p1,u),c.render(o.shapeLayer,o.theme,k.p2,-u);const w=Math.max(d.height(o.theme),c.height(o.theme))/2;return y.insertBefore(t.make("rect",{x:Math.min(m,f),y:b-Math.max(p,w),width:Math.abs(f-m),height:Math.max(p,w)+w,fill:"transparent"}),y.firstChild),b+Math.max(w+o.theme.minActionMargin,o.theme.actionMargin)}renderPre({label:e,agentNames:t,options:n},s){const i=s.theme.connect,a=r[n.left],o=r[n.right],h=s.textSizer.measureHeight(i.label.attrs,e)+i.label.margin.top+i.label.margin.bottom;let l=a.height(s.theme);return t[0]!==t[1]&&(l=Math.max(l,o.height(s.theme))),{agentNames:t,topShift:Math.max(l/2,h)}}render(e,t){return e.agentNames[0]===e.agentNames[1]?this.renderSelfConnect(e,t):this.renderSimpleConnect(e,t)}}return e.register("connect",new a),a}),n("sequence/components/Note",["./BaseComponent","svg/SVGUtilities"],(e,t)=>{"use strict";function n(e,t){let n=null,s=null;return t.forEach(t=>{const i=e.get(t);(null===n||i.index<n.index)&&(n=i),(null===s||i.index>s.index)&&(s=i)}),{left:n.label,right:s.label}}class s extends e{renderPre({agentNames:e}){return{agentNames:e}}renderNote({xMid:e=null,x0:n=null,x1:s=null,anchor:i,mode:r,label:a},o){const h=o.theme.getNote(r),l=o.makeRegion(),g=o.topY+h.margin.top+h.padding.top,d=new o.SVGTextBlockClass(l,{attrs:h.labelAttrs,text:a,y:g}),c=d.width+h.padding.left+h.padding.right,u=h.padding.top+d.height+h.padding.bottom;switch(null===n&&null!==e&&(n=e-c/2),null===s&&null!==n?s=n+c:null===n&&(n=s-c),h.labelAttrs["text-anchor"]){case"middle":d.set({x:(n+h.padding.left+s-h.padding.right)/2,y:g});break;case"end":d.set({x:s-h.padding.right,y:g});break;default:d.set({x:n+h.padding.left,y:g})}return o.shapeLayer.appendChild(h.boxRenderer({x:n,y:o.topY+h.margin.top,width:s-n,height:u})),l.insertBefore(t.make("rect",{x:n,y:o.topY+h.margin.top,width:s-n,height:u,fill:"transparent"}),l.firstChild),o.topY+h.margin.top+u+h.margin.bottom+o.theme.actionMargin}}class i extends s{separation({agentNames:e,mode:t,label:s},i){const r=i.theme.getNote(t),a=i.textSizer.measure(r.labelAttrs,s).width+r.padding.left+r.padding.right,{left:o,right:h}=n(i.agentInfos,e),l=i.agentInfos.get(o),g=i.agentInfos.get(h);if(l!==g){const e=l.currentMaxRad+r.overlap.left,t=g.currentMaxRad+r.overlap.right;i.addSeparation(o,h,a-e-t),i.addSpacing(o,{left:e,right:0}),i.addSpacing(h,{left:0,right:t})}else i.addSpacing(o,{left:a/2,right:a/2})}render({agentNames:e,mode:t,label:s},i){const r=i.theme.getNote(t),{left:a,right:o}=n(i.agentInfos,e),h=i.agentInfos.get(a),l=i.agentInfos.get(o);if(h!==l)return this.renderNote({x0:h.x-h.currentMaxRad-r.overlap.left,x1:l.x+l.currentMaxRad+r.overlap.right,anchor:"middle",mode:t,label:s},i);{const e=h.x;return this.renderNote({xMid:e,anchor:"middle",mode:t,label:s},i)}}}class r extends s{constructor(e){super(),this.isRight=e}separation({agentNames:e,mode:t,label:s},i){const r=i.theme.getNote(t),{left:a,right:o}=n(i.agentInfos,e),h=i.textSizer.measure(r.labelAttrs,s).width+r.padding.left+r.padding.right+r.margin.left+r.margin.right;if(this.isRight){const e=i.agentInfos.get(o);i.addSpacing(o,{left:0,right:h+e.currentMaxRad})}else{const e=i.agentInfos.get(a);i.addSpacing(a,{left:h+e.currentMaxRad,right:0})}}render({agentNames:e,mode:t,label:s},i){const r=i.theme.getNote(t),{left:a,right:o}=n(i.agentInfos,e);if(this.isRight){const e=i.agentInfos.get(o),n=e.x+e.currentMaxRad+r.margin.left;return this.renderNote({x0:n,anchor:"start",mode:t,label:s},i)}{const e=i.agentInfos.get(a),n=e.x-e.currentMaxRad-r.margin.right;return this.renderNote({x1:n,anchor:"end",mode:t,label:s},i)}}}class a extends s{separation({agentNames:e,mode:t,label:s},i){const r=i.theme.getNote(t),{left:a,right:o}=n(i.agentInfos,e),h=i.agentInfos.get(a),l=i.agentInfos.get(o);i.addSeparation(a,o,i.textSizer.measure(r.labelAttrs,s).width+r.padding.left+r.padding.right+r.margin.left+r.margin.right+h.currentMaxRad+l.currentMaxRad)}render({agentNames:e,mode:t,label:s},i){const{left:r,right:a}=n(i.agentInfos,e),o=i.agentInfos.get(r),h=i.agentInfos.get(a),l=(o.x+o.currentMaxRad+h.x-h.currentMaxRad)/2;return this.renderNote({xMid:l,anchor:"middle",mode:t,label:s},i)}}return s.NoteOver=i,s.NoteSide=r,s.NoteBetween=a,e.register("note over",new i),e.register("note left",new r(!1)),e.register("note right",new r(!0)),e.register("note between",new a),s}),n("sequence/Renderer",["core/ArrayUtilities","core/EventObject","svg/SVGUtilities","svg/SVGShapes","./components/BaseComponent","./components/Block","./components/Parallel","./components/Marker","./components/AgentCap","./components/AgentHighlight","./components/Connect","./components/Note"],(e,t,n,s,i)=>{"use strict";function r(e,t){let n=null,s=null;return t.forEach(t=>{const i=e.get(t);(null===n||i.index<n.index)&&(n=i),(null===s||i.index>s.index)&&(s=i)}),{left:n.label,right:s.label}}let a=0;return class extends t{constructor({themes:e=[],namespace:t=null,components:n=null,SVGTextBlockClass:r=s.TextBlock}={}){super(),null===n&&(n=i.getComponents()),this.separationStage=this.separationStage.bind(this),this.renderStage=this.renderStage.bind(this),this.addSeparation=this.addSeparation.bind(this),this.addDef=this.addDef.bind(this),this.state={},this.width=0,this.height=0,this.themes=function(e){if(0===e.length)throw new Error("Cannot render without a theme");const t=new Map;return e.forEach(e=>{t.set(e.name,e)}),t.set("",e[0]),t}(e),this.theme=null,this.namespace=function(e){return null===e&&(e="R"+a,++a),e}(t),this.components=n,this.SVGTextBlockClass=r,this.knownDefs=new Set,this.highlights=new Map,this.currentHighlight=-1,this.buildStaticElements(),this.components.forEach(e=>{e.makeState(this.state)})}addTheme(e){this.themes.set(e.name,e)}buildStaticElements(){this.base=n.makeContainer(),this.defs=n.make("defs"),this.mask=n.make("mask",{id:this.namespace+"LineMask",maskUnits:"userSpaceOnUse"}),this.maskReveal=n.make("rect",{fill:"#FFFFFF"}),this.agentLines=n.make("g",{mask:"url(#"+this.namespace+"LineMask)"}),this.blocks=n.make("g"),this.actionShapes=n.make("g"),this.actionLabels=n.make("g"),this.base.appendChild(this.defs),this.base.appendChild(this.agentLines),this.base.appendChild(this.blocks),this.base.appendChild(this.actionShapes),this.base.appendChild(this.actionLabels),this.title=new this.SVGTextBlockClass(this.base),this.sizer=new this.SVGTextBlockClass.SizeTester(this.base)}addDef(e,t){const n=this.namespace+e;if(this.knownDefs.has(e))return n;this.knownDefs.add(e);const s=t();return s.setAttribute("id",n),this.defs.appendChild(s),n}addSeparation(e,t,n){const s=this.agentInfos.get(e),i=this.agentInfos.get(t),r=s.separations.get(t)||0;s.separations.set(t,Math.max(r,n));const a=i.separations.get(e)||0;i.separations.set(e,Math.max(a,n))}separationStage(t){const n=new Map,s=this.visibleAgents.slice();this.agentInfos.forEach(e=>{const t=e.currentRad;e.currentMaxRad=t,n.set(e.label,{left:t,right:t})});const i={theme:this.theme,agentInfos:this.agentInfos,visibleAgents:this.visibleAgents,textSizer:this.sizer,addSpacing:(e,{left:t,right:s})=>{const i=n.get(e);i.left=Math.max(i.left,t),i.right=Math.max(i.right,s)},addSeparation:this.addSeparation,components:this.components},r=this.components.get(t.type);if(!r)throw new Error("Unknown component: "+t.type);r.separationPre(t,i),r.separation(t,i),e.mergeSets(s,this.visibleAgents),s.forEach(e=>{const t=this.agentInfos.get(e),i=n.get(e);t.maxRPad=Math.max(t.maxRPad,i.right),t.maxLPad=Math.max(t.maxLPad,i.left),s.forEach(s=>{if(this.agentInfos.get(s).index>=t.index)return;const r=n.get(s);this.addSeparation(e,s,i.left+r.right+this.theme.agentMargin)})})}checkAgentRange(e,t=0){if(0===e.length)return t;const{left:n,right:s}=r(this.agentInfos,e),i=this.agentInfos.get(n).x,a=this.agentInfos.get(s).x;let o=t;return this.agentInfos.forEach(e=>{e.x>=i&&e.x<=a&&(o=Math.max(o,e.latestY))}),o}markAgentRange(e,t){if(0===e.length)return;const{left:n,right:s}=r(this.agentInfos,e),i=this.agentInfos.get(n).x,a=this.agentInfos.get(s).x;this.agentInfos.forEach(e=>{e.x>=i&&e.x<=a&&(e.latestY=t)})}drawAgentLine(e,t){null===e.latestYStart||t<=e.latestYStart||this.theme.drawAgentLine(this.agentLines,{x:e.x,y0:e.latestYStart,y1:t,width:2*e.currentRad,className:"agent-"+e.index+"-line"})}addHighlightObject(e,t){let n=this.highlights.get(e);n||(n=[],this.highlights.set(e,n)),n.push(t)}renderStage(e){this.agentInfos.forEach(e=>{const t=e.currentRad;e.currentMaxRad=t});const t={theme:this.theme,agentInfos:this.agentInfos,textSizer:this.sizer,state:this.state,components:this.components},s=this.components.get(e.type),r=s.renderPre(e,t),{topShift:a,agentNames:o,asynchronousY:h}=i.cleanRenderPreResult(r,this.currentY),l=this.checkAgentRange(o,h),g={topY:l,primaryY:l+a,blockLayer:this.blocks,shapeLayer:this.actionShapes,labelLayer:this.actionLabels,maskLayer:this.mask,theme:this.theme,agentInfos:this.agentInfos,textSizer:this.sizer,SVGTextBlockClass:this.SVGTextBlockClass,state:this.state,drawAgentLine:(e,t,n=!1)=>{const s=this.agentInfos.get(e);this.drawAgentLine(s,t),s.latestYStart=n?null:t},addDef:this.addDef,makeRegion:(t,s=null)=>{t||(t=n.make("g"));const i=s||e;return this.addHighlightObject(i.ln,t),t.setAttribute("class","region"),t.addEventListener("mouseenter",()=>{this.trigger("mouseover",[i])}),t.addEventListener("mouseleave",()=>{this.trigger("mouseout")}),t.addEventListener("click",()=>{this.trigger("click",[i])}),this.actionLabels.appendChild(t),t},components:this.components},d=Math.max(l,s.render(e,g)||0);this.markAgentRange(o,d),this.currentY=d}positionAgents(){const e=[];this.agentInfos.forEach(t=>{let n=0;t.separations.forEach((e,s)=>{const i=this.agentInfos.get(s);i.index<t.index&&(n=Math.max(n,i.x+e))}),t.x=n,e.push(t)});let t={x:0};e.reverse().forEach(e=>{let n=t.x;t=e,e.anchorRight&&(e.separations.forEach((t,s)=>{const i=this.agentInfos.get(s);i.index>e.index&&(n=Math.min(n,i.x-t))}),e.x=n)}),this.agentInfos.forEach(({label:e,x:t,maxRPad:n,maxLPad:s})=>{this.minX=Math.min(this.minX,t-s),this.maxX=Math.max(this.maxX,t+n)})}buildAgentInfos(e,t){this.agentInfos=new Map,e.forEach((e,t)=>{this.agentInfos.set(e.name,{label:e.name,anchorRight:e.anchorRight,index:t,x:null,latestYStart:null,currentRad:0,currentMaxRad:0,latestY:0,maxRPad:0,maxLPad:0,separations:new Map})}),this.visibleAgents=["[","]"],t.forEach(this.separationStage),this.positionAgents()}updateBounds(e){const t=(this.minX+this.maxX)/2,n=this.title.height>0?-this.theme.titleMargin-this.title.height:0;this.title.set({x:t,y:n});const s=this.title.width/2,i=this.theme.outerMargin,r=Math.min(this.minX,t-s)-i,a=Math.max(this.maxX,t+s)+i,o=n-i,h=e+i;this.maskReveal.setAttribute("x",r),this.maskReveal.setAttribute("y",o),this.maskReveal.setAttribute("width",a-r),this.maskReveal.setAttribute("height",h-o),this.base.setAttribute("viewBox",r+" "+o+" "+(a-r)+" "+(h-o)),this.width=a-r,this.height=h-o}_reset(){this.knownDefs.clear(),this.highlights.clear(),this.currentHighlight=-1,n.empty(this.defs),n.empty(this.mask),n.empty(this.agentLines),n.empty(this.blocks),n.empty(this.actionShapes),n.empty(this.actionLabels),this.mask.appendChild(this.maskReveal),this.defs.appendChild(this.mask),this.components.forEach(e=>{e.resetState(this.state)})}setHighlight(e=null){null!==e&&this.highlights.has(e)||(e=-1),this.currentHighlight!==e&&(-1!==this.currentHighlight&&this.highlights.get(this.currentHighlight).forEach(e=>{e.setAttribute("class","region")}),-1!==e&&this.highlights.get(e).forEach(e=>{e.setAttribute("class","region focus")}),this.currentHighlight=e)}render(e){const t=this.currentHighlight;this._reset();const n=e.meta.theme;this.theme=this.themes.get(n),this.theme||(this.theme=this.themes.get("")),this.theme.reset(),this.theme.addDefs(this.addDef),this.title.set({attrs:this.theme.titleAttrs,text:e.meta.title}),this.minX=0,this.maxX=0,this.buildAgentInfos(e.agents,e.stages),this.currentY=0,e.stages.forEach(this.renderStage);const s=this.checkAgentRange(["[","]"],this.currentY),i=Math.max(s-this.theme.actionMargin,0);this.updateBounds(i),this.sizer.resetCache(),this.sizer.detach(),this.setHighlight(t)}getThemeNames(){return Array.from(this.themes.keys()).filter(e=>""!==e)}getThemes(){return this.getThemeNames().map(e=>this.themes.get(e))}getAgentX(e){return this.agentInfos.get(e).x}svg(){return this.base}}}),n("sequence/Exporter",[],()=>{"use strict";const e=/^((?!chrome|android).)*safari/i.test(navigator.userAgent),t=void 0!==window.InstallTrigger;return class{constructor(){this.latestSVG=null,this.latestInternalSVG=null,this.canvas=null,this.context=null,this.indexPNG=0,this.latestPNGIndex=0,this.latestPNG=null}getSVGContent(e,n=null){let s=e.svg().outerHTML;return t&&n&&(s=s.replace(/^<svg/,'<svg width="'+n.width+'" height="'+n.height+'" ')),s}getSVGBlob(e,t=null){return new Blob([this.getSVGContent(e,t)],{type:"image/svg+xml"})}getSVGURL(e,t=null){const n=this.getSVGBlob(e,t);return t?(this.latestInternalSVG&&URL.revokeObjectURL(this.latestInternalSVG),this.latestInternalSVG=URL.createObjectURL(n),this.latestInternalSVG):(this.latestSVG&&URL.revokeObjectURL(this.latestSVG),this.latestSVG=URL.createObjectURL(n),this.latestSVG)}getPNGBlob(t,n,s){this.canvas||(window.devicePixelRatio=1,this.canvas=document.createElement("canvas"),this.context=this.canvas.getContext("2d"));const i=t.width*n,r=t.height*n,a=new Image(i,r);let o=null;e&&((o=document.createElement("div")).style.position="absolute",o.style.visibility="hidden",o.appendChild(a),document.body.appendChild(o)),a.addEventListener("load",()=>{this.canvas.width=i,this.canvas.height=r,this.context.drawImage(a,0,0),o&&document.body.removeChild(o),this.canvas.toBlob(s,"image/png")},{once:!0}),a.src=this.getSVGURL(t,{width:i,height:r})}getPNGURL(e,t,n){++this.indexPNG;const s=this.indexPNG;this.getPNGBlob(e,t,e=>{const t=URL.createObjectURL(e);s>=this.latestPNGIndex?(this.latestPNG&&URL.revokeObjectURL(this.latestPNG),this.latestPNG=t,this.latestPNGIndex=s,n(t,!0)):(n(t,!1),URL.revokeObjectURL(t))})}}}),n("sequence/themes/Basic",["core/ArrayUtilities","svg/SVGUtilities","svg/SVGShapes"],(e,t,n)=>{"use strict";const 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class{constructor(){this.name="chunky",Object.assign(this,i)}reset(){}addDefs(){}getNote(e){return r[e]}drawAgentLine(e,{x:n,y0:s,y1:i,width:r,className:a}){r>0?e.appendChild(t.make("rect",Object.assign({x:n-r/2,y:s,width:r,height:i-s,class:a},this.agentLineAttrs))):e.appendChild(t.make("line",Object.assign({x1:n,y1:s,x2:n,y2:i,class:a},this.agentLineAttrs)))}}}),n("sequence/themes/HandleeFontData",[],()=>{"use 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o=this.lineNodes({x:e+n,y:r},{x:s+i,y:r},{varX:.3});return{shape:t.make("path",Object.assign({d:o.nodes},a)),p1:{x:o.p1.x-n,y:o.p2.y},p2:{x:o.p2.x-i,y:o.p2.y}}}renderArrowHead({x:e,y:n,dx:s,dy:i,attrs:r}){const a=s*(1+this.vary(.2)),o=i*(1+this.vary(.3)),h=this.lineNodes({x:e+a,y:n-o},{x:e,y:n},{var1:2,var2:.2}),l=this.lineNodes(h.p2,{x:e+a,y:n+o},{var1:0,var2:2,move:!1}),g="none"===r.fill?{nodes:""}:this.lineNodes(l.p2,h.p1,{var1:0,var2:0,move:!1});return t.make("path",Object.assign({d:h.nodes+l.nodes+g.nodes},r))}renderState({x:e,y:t,width:n,height:s}){return this.renderBox({x:e,y:t,width:n,height:s})}renderBar({x:e,y:t,width:n,height:s}){return this.renderBox({x:e,y:t,width:n,height:s},{fill:"#000000"})}renderCross({x:e,y:n,radius:s}){const i=(this.vary(.2)+1)*s,r=this.lineNodes({x:e-i,y:n-i},{x:e+i,y:n+i},{}),o=(this.vary(.2)+1)*s,h=this.lineNodes({x:e+o,y:n-o},{x:e-o,y:n+o},{});return t.make("path",Object.assign({d:r.nodes+h.nodes,fill:"none"},a))}getNote(e){return this.notes[e]}drawAgentLine(e,{x:t,y0:n,y1:s,width:i,className:r}){if(i>0){const a=this.renderBox({x:t-i/2,y:n,width:i,height:s-n},{fill:"none"});a.setAttribute("class",r),e.appendChild(a)}else{const i=this.renderLine({x:t,y:n},{x:t,y:s},{varY:.3});i.setAttribute("class",r),e.appendChild(i)}}}return d.RIGHT=g,d.LEFT={},d}),n("sequence/SequenceDiagram",["core/EventObject","./Parser","./Generator","./Renderer","./Exporter","./themes/Basic","./themes/Chunky","./themes/Sketch"],(e,t,n,s,i,r,a,o)=>{"use strict";function h(e,t="sequence"){e||(e=window.CodeMirror),e.defineMode(t,()=>u),e.registerHelper("hint",t,p)}function l(e,t=null,n={}){if("svg"===e.tagName)return null;null===t?t=e.innerText:"object"==typeof t&&(t=(n=t).code);const s=new m(t,n),i=s.dom();e.parentNode.insertBefore(i,e),e.parentNode.removeChild(e);const r=e.attributes;for(let e=0;e<r.length;++e)i.setAttribute(r[e].nodeName,r[e].nodeValue);return s}const g=[new r,new a,new o(o.RIGHT),new o(o.LEFT)],d=new t,c=new n,u=d.getCodeMirrorMode(),p=d.getCodeMirrorHints();class m extends e{constructor(e=null,t={}){super(),e&&"object"==typeof e&&(e=(t=e).code),this.registerCodeMirrorMode=h,this.code=e,this.parser=d,this.generator=c,this.renderer=new s(Object.assign({themes:g},t)),this.exporter=new i,this.renderer.addEventForwarding(this),t.container&&t.container.appendChild(this.dom()),"string"==typeof this.code&&this.render()}clone(e={}){return new m(Object.assign({code:this.code,container:null,themes:this.renderer.getThemes(),namespace:null,components:this.renderer.components,SVGTextBlockClass:this.renderer.SVGTextBlockClass},e))}set(e=""){this.code!==e&&(this.code=e,this.render())}process(e){const t=this.parser.parse(e);return this.generator.generate(t)}addTheme(e){this.renderer.addTheme(e)}setHighlight(e=null){this.renderer.setHighlight(e)}getThemeNames(){return this.renderer.getThemeNames()}getThemes(){return this.renderer.getThemes()}getSVGSynchronous(){return this.exporter.getSVGURL(this.renderer)}getSVG(){return Promise.resolve({url:this.getSVGSynchronous(),latest:!0})}getPNG({resolution:e=1,size:t=null}={}){return t&&(this.renderer.width=t.width,this.renderer.height=t.height),new Promise(t=>{this.exporter.getPNGURL(this.renderer,e,(e,n)=>{t({url:e,latest:n})})})}getSize(){return{width:this.renderer.width,height:this.renderer.height}}render(e=null){const t=this.renderer.svg(),n=t.parentNode;document.body.contains(t)||(n&&n.removeChild(t),document.body.appendChild(t));try{e||(e=this.process(this.code)),this.renderer.render(e)}finally{t.parentNode!==n&&(document.body.removeChild(t),n&&n.appendChild(t))}}setContainer(e=null){const t=this.dom();t.parentNode&&t.parentNode.removeChild(t),e&&e.appendChild(t)}dom(){return this.renderer.svg()}}return Object.assign(m,{Parser:t,Generator:n,Renderer:s,Exporter:i,themes:g,addTheme:function(e){g.push(e)},registerCodeMirrorMode:h,convert:l,convertAll:function(e=null,t="sequence-diagram"){"string"==typeof e&&(t=e,e=null);let n=null;n=e&&void 0!==e.length?e:(e||document).getElementsByClassName(t);const s=[];for(let e=0;e<n.length;++e)s.push(n[e]);s.forEach(e=>l(e))}})}),e(["sequence/SequenceDiagram"],e=>{"use strict";const t=window.define;t&&t.amd?t(()=>e):(document.addEventListener("DOMContentLoaded",()=>{e.convertAll()},{once:!0}),window.CodeMirror&&e.registerCodeMirrorMode(window.CodeMirror),window.SequenceDiagram=e)},null,!0),n("standalone",function(){})}();
\ No newline at end of file
diff --git a/screenshots/Themes.png b/screenshots/Themes.png
index 2302b29..c08d91a 100644
Binary files a/screenshots/Themes.png and b/screenshots/Themes.png differ
diff --git a/scripts/sequence/components/Connect.js b/scripts/sequence/components/Connect.js
index 812c467..f2bfbb9 100644
--- a/scripts/sequence/components/Connect.js
+++ b/scripts/sequence/components/Connect.js
@@ -9,8 +9,8 @@ define([
 ) => {
 	'use strict';
 
-	function drawHorizontalArrowHead(container, {x, y, dx, dy, attrs}) {
-		container.appendChild(svg.make(
+	function drawHorizontalArrowHead({x, y, dx, dy, attrs}) {
+		return svg.make(
 			attrs.fill === 'none' ? 'polyline' : 'polygon',
 			Object.assign({
 				'points': (
@@ -19,7 +19,7 @@ define([
 					(x + dx) + ' ' + (y + dy)
 				),
 			}, attrs)
-		));
+		);
 	}
 
 	class Arrowhead {
@@ -46,15 +46,16 @@ define([
 			}
 		}
 
-		render(layer, theme, {x, y, dir}) {
+		render(layer, theme, pt, dir) {
 			const config = this.getConfig(theme);
-			drawHorizontalArrowHead(layer, {
-				x: x + this.short(theme) * dir,
-				y,
+			const func = config.render || drawHorizontalArrowHead;
+			layer.appendChild(func({
+				x: pt.x + this.short(theme) * dir,
+				y: pt.y,
 				dx: config.width * dir,
 				dy: config.height / 2,
 				attrs: config.attrs,
-			});
+			}));
 		}
 
 		width(theme) {
@@ -103,91 +104,99 @@ define([
 		];
 	}
 
-	class ConnectingLine {
-		renderFlat(container, {x1, x2, y}, attrs) {
-			const ww = attrs['wave-width'];
-			const hh = attrs['wave-height'];
+	function renderFlat({x1, dx1, x2, dx2, y}, attrs) {
+		const ww = attrs['wave-width'];
+		const hh = attrs['wave-height'];
 
-			if(!ww || !hh) {
-				container.appendChild(svg.make('line', Object.assign({
-					'x1': x1,
+		if(!ww || !hh) {
+			return {
+				shape: svg.make('line', Object.assign({
+					'x1': x1 + dx1,
 					'y1': y,
-					'x2': x2,
+					'x2': x2 + dx2,
 					'y2': y,
-				}, attrs)));
-				return;
-			}
-
-			const heights = makeWavyLineHeights(hh);
-			const dw = ww / heights.length;
-			let p = 0;
-
-			let points = '';
-			for(let x = x1; x + dw <= x2; x += dw) {
-				points += (
-					x + ' ' +
-					(y + heights[(p ++) % heights.length]) + ' '
-				);
-			}
-			points += x2 + ' ' + y;
-			container.appendChild(svg.make('polyline', Object.assign({
-				points,
-			}, attrs)));
+				}, attrs)),
+				p1: {x: x1, y},
+				p2: {x: x2, y},
+			};
 		}
 
-		renderRev(container, {xL1, xL2, y1, y2, xR}, attrs) {
-			const r = (y2 - y1) / 2;
-			const ww = attrs['wave-width'];
-			const hh = attrs['wave-height'];
+		const heights = makeWavyLineHeights(hh);
+		const dw = ww / heights.length;
+		let p = 0;
 
-			if(!ww || !hh) {
-				container.appendChild(svg.make('path', Object.assign({
-					'd': (
-						'M' + xL1 + ' ' + y1 +
-						'L' + xR + ' ' + y1 +
-						'A' + r + ' ' + r + ' 0 0 1 ' + xR + ' ' + y2 +
-						'L' + xL2 + ' ' + y2
-					),
-				}, attrs)));
-				return;
-			}
-
-			const heights = makeWavyLineHeights(hh);
-			const dw = ww / heights.length;
-			let p = 0;
-
-			let points = '';
-			for(let x = xL1; x + dw <= xR; x += dw) {
-				points += (
-					x + ' ' +
-					(y1 + heights[(p ++) % heights.length]) + ' '
-				);
-			}
-
-			const ym = (y1 + y2) / 2;
-			for(let t = 0; t + dw / r <= Math.PI; t += dw / r) {
-				const h = heights[(p ++) % heights.length];
-				points += (
-					(xR + Math.sin(t) * (r - h)) + ' ' +
-					(ym - Math.cos(t) * (r - h)) + ' '
-				);
-			}
-
-			for(let x = xR; x - dw >= xL2; x -= dw) {
-				points += (
-					x + ' ' +
-					(y2 - heights[(p ++) % heights.length]) + ' '
-				);
-			}
-
-			points += xL2 + ' ' + y2;
-			container.appendChild(svg.make('polyline', Object.assign({
-				points,
-			}, attrs)));
+		let points = '';
+		const xL = Math.min(x1 + dx1, x2 + dx2);
+		const xR = Math.max(x1 + dx1, x2 + dx2);
+		for(let x = xL; x + dw <= xR; x += dw) {
+			points += (
+				x + ' ' +
+				(y + heights[(p ++) % heights.length]) + ' '
+			);
 		}
+		points += xR + ' ' + y;
+		return {
+			shape: svg.make('polyline', Object.assign({points}, attrs)),
+			p1: {x: x1, y},
+			p2: {x: x2, y},
+		};
 	}
 
-	const CONNECTING_LINE = new ConnectingLine();
+	function renderRev({xL, dx1, dx2, y1, y2, xR}, attrs) {
+		const r = (y2 - y1) / 2;
+		const ww = attrs['wave-width'];
+		const hh = attrs['wave-height'];
+
+		if(!ww || !hh) {
+			return {
+				shape: svg.make('path', Object.assign({
+					'd': (
+						'M' + (xL + dx1) + ' ' + y1 +
+						'L' + xR + ' ' + y1 +
+						'A' + r + ' ' + r + ' 0 0 1 ' + xR + ' ' + y2 +
+						'L' + (xL + dx2) + ' ' + y2
+					),
+				}, attrs)),
+				p1: {x: xL, y: y1},
+				p2: {x: xL, y: y2},
+			};
+		}
+
+		const heights = makeWavyLineHeights(hh);
+		const dw = ww / heights.length;
+		let p = 0;
+
+		let points = '';
+		for(let x = xL + dx1; x + dw <= xR; x += dw) {
+			points += (
+				x + ' ' +
+				(y1 + heights[(p ++) % heights.length]) + ' '
+			);
+		}
+
+		const ym = (y1 + y2) / 2;
+		for(let t = 0; t + dw / r <= Math.PI; t += dw / r) {
+			const h = heights[(p ++) % heights.length];
+			points += (
+				(xR + Math.sin(t) * (r - h)) + ' ' +
+				(ym - Math.cos(t) * (r - h)) + ' '
+			);
+		}
+
+		for(let x = xR; x - dw >= xL + dx2; x -= dw) {
+			points += (
+				x + ' ' +
+				(y2 - heights[(p ++) % heights.length]) + ' '
+			);
+		}
+
+		points += (xL + dx2) + ' ' + y2;
+		return {
+			shape: svg.make('polyline', Object.assign({points}, attrs)),
+			p1: {x: xL, y: y1},
+			p2: {x: xL, y: y2},
+		};
+	}
 
 	class Connect extends BaseComponent {
 		separation({label, agentNames, options}, env) {
@@ -277,17 +286,19 @@ define([
 			const x1 = Math.max(lineX + rArrow.width(env.theme), x0 + labelW);
 			const y1 = y0 + r * 2;
 
-			const lineAttrs = config.lineAttrs[options.line];
-			CONNECTING_LINE.renderRev(env.shapeLayer, {
-				xL1: lineX + lArrow.lineGap(env.theme, lineAttrs),
-				xL2: lineX + rArrow.lineGap(env.theme, lineAttrs),
+			const line = config.line[options.line];
+			const rendered = (line.renderRev || renderRev)({
+				xL: lineX,
+				dx1: lArrow.lineGap(env.theme, line.attrs),
+				dx2: rArrow.lineGap(env.theme, line.attrs),
 				y1: y0,
 				y2: y1,
 				xR: x1,
-			}, lineAttrs);
+			}, line.attrs);
+			env.shapeLayer.appendChild(rendered.shape);
 
-			lArrow.render(env.shapeLayer, env.theme, {x: lineX, y: y0, dir: 1});
-			rArrow.render(env.shapeLayer, env.theme, {x: lineX, y: y1, dir: 1});
+			lArrow.render(env.shapeLayer, env.theme, rendered.p1, 1);
+			rArrow.render(env.shapeLayer, env.theme, rendered.p2, 1);
 
 			const raise = Math.max(height, lArrow.height(env.theme) / 2);
 			const arrowDip = rArrow.height(env.theme) / 2;
@@ -339,15 +350,18 @@ define([
 				SVGTextBlockClass: env.SVGTextBlockClass,
 			});
 
-			const lineAttrs = config.lineAttrs[options.line];
-			CONNECTING_LINE.renderFlat(env.shapeLayer, {
-				x1: x0 + lArrow.lineGap(env.theme, lineAttrs) * dir,
-				x2: x1 - rArrow.lineGap(env.theme, lineAttrs) * dir,
+			const line = config.line[options.line];
+			const rendered = (line.render || renderFlat)({
+				x1: x0,
+				dx1: lArrow.lineGap(env.theme, line.attrs) * dir,
+				x2: x1,
+				dx2: -rArrow.lineGap(env.theme, line.attrs) * dir,
 				y,
-			}, lineAttrs);
+			}, line.attrs);
+			env.shapeLayer.appendChild(rendered.shape);
 
-			lArrow.render(env.shapeLayer, env.theme, {x: x0, y, dir});
-			rArrow.render(env.shapeLayer, env.theme, {x: x1, y, dir: -dir});
+			lArrow.render(env.shapeLayer, env.theme, rendered.p1, dir);
+			rArrow.render(env.shapeLayer, env.theme, rendered.p2, -dir);
 
 			const arrowSpread = Math.max(
 				lArrow.height(env.theme),
diff --git a/scripts/sequence/themes/Basic.js b/scripts/sequence/themes/Basic.js
index 6681b36..14e1575 100644
--- a/scripts/sequence/themes/Basic.js
+++ b/scripts/sequence/themes/Basic.js
@@ -82,30 +82,36 @@ define([
 
 		connect: {
 			loopbackRadius: 6,
-			lineAttrs: {
+			line: {
 				'solid': {
-					'fill': 'none',
-					'stroke': '#000000',
-					'stroke-width': 1,
+					attrs: {
+						'fill': 'none',
+						'stroke': '#000000',
+						'stroke-width': 1,
+					},
 				},
 				'dash': {
-					'fill': 'none',
-					'stroke': '#000000',
-					'stroke-width': 1,
-					'stroke-dasharray': '4, 2',
+					attrs: {
+						'fill': 'none',
+						'stroke': '#000000',
+						'stroke-width': 1,
+						'stroke-dasharray': '4, 2',
+					},
 				},
 				'wave': {
-					'fill': 'none',
-					'stroke': '#000000',
-					'stroke-width': 1,
-					'stroke-linejoin': 'round',
-					'stroke-linecap': 'round',
-					'wave-width': 6,
-					'wave-height': 0.5,
+					attrs: {
+						'fill': 'none',
+						'stroke': '#000000',
+						'stroke-width': 1,
+						'stroke-linejoin': 'round',
+						'stroke-linecap': 'round',
+						'wave-width': 6,
+						'wave-height': 0.5,
+					},
 				},
 			},
 			arrow: {
-				single: {
+				'single': {
 					width: 5,
 					height: 10,
 					attrs: {
@@ -114,7 +120,7 @@ define([
 						'stroke-linejoin': 'miter',
 					},
 				},
-				double: {
+				'double': {
 					width: 4,
 					height: 6,
 					attrs: {
diff --git a/scripts/sequence/themes/Chunky.js b/scripts/sequence/themes/Chunky.js
index 30eaaf5..cc62dc9 100644
--- a/scripts/sequence/themes/Chunky.js
+++ b/scripts/sequence/themes/Chunky.js
@@ -89,26 +89,32 @@ define([
 
 		connect: {
 			loopbackRadius: 8,
-			lineAttrs: {
+			line: {
 				'solid': {
-					'fill': 'none',
-					'stroke': '#000000',
-					'stroke-width': 3,
+					attrs: {
+						'fill': 'none',
+						'stroke': '#000000',
+						'stroke-width': 3,
+					},
 				},
 				'dash': {
-					'fill': 'none',
-					'stroke': '#000000',
-					'stroke-width': 3,
-					'stroke-dasharray': '10, 4',
+					attrs: {
+						'fill': 'none',
+						'stroke': '#000000',
+						'stroke-width': 3,
+						'stroke-dasharray': '10, 4',
+					},
 				},
 				'wave': {
-					'fill': 'none',
-					'stroke': '#000000',
-					'stroke-width': 3,
-					'stroke-linejoin': 'round',
-					'stroke-linecap': 'round',
-					'wave-width': 10,
-					'wave-height': 1,
+					attrs: {
+						'fill': 'none',
+						'stroke': '#000000',
+						'stroke-width': 3,
+						'stroke-linejoin': 'round',
+						'stroke-linecap': 'round',
+						'wave-width': 10,
+						'wave-height': 1,
+					},
 				},
 			},
 			arrow: {
diff --git a/scripts/sequence/themes/Sketch.js b/scripts/sequence/themes/Sketch.js
index 65ba938..f4a345c 100644
--- a/scripts/sequence/themes/Sketch.js
+++ b/scripts/sequence/themes/Sketch.js
@@ -12,7 +12,6 @@ define([
 	'use strict';
 
 	// TODO:
-	// * arrows
 	// * fade starter/terminator sometimes does not fully cover line
 	// * blocks (if/else/repeat/ref)
 
@@ -33,6 +32,13 @@ define([
 		return r;
 	}
 
+	const PENCIL = {
+		'stroke': 'rgba(0,0,0,0.7)',
+		'stroke-width': 0.8,
+		'stroke-linejoin': 'round',
+		'stroke-linecap': 'round',
+	};
+
 	const SETTINGS = {
 		titleMargin: 10,
 		outerMargin: 5,
@@ -77,47 +83,50 @@ define([
 
 		connect: {
 			loopbackRadius: 6,
-			lineAttrs: {
+			line: {
 				'solid': {
-					'fill': 'none',
-					'stroke': '#000000',
-					'stroke-width': 1,
+					attrs: Object.assign({
+						'fill': 'none',
+					}, PENCIL),
+					render: null,
+					renderRev: null,
 				},
 				'dash': {
-					'fill': 'none',
-					'stroke': '#000000',
-					'stroke-width': 1,
-					'stroke-dasharray': '4, 2',
+					attrs: Object.assign({
+						'fill': 'none',
+						'stroke-dasharray': '4, 2',
+					}, PENCIL),
+					render: null,
+					renderRev: null,
 				},
 				'wave': {
-					'fill': 'none',
-					'stroke': '#000000',
-					'stroke-width': 1,
-					'stroke-linejoin': 'round',
-					'stroke-linecap': 'round',
-					'wave-width': 6,
-					'wave-height': 0.5,
+					attrs: Object.assign({
+						'fill': 'none',
+						'stroke-linejoin': 'round',
+						'stroke-linecap': 'round',
+						'wave-width': 6,
+						'wave-height': 0.5,
+					}, PENCIL),
+					render: null,
+					renderRev: null,
 				},
 			},
 			arrow: {
-				single: {
+				'single': {
 					width: 5,
-					height: 10,
-					attrs: {
-						'fill': '#000000',
-						'stroke-width': 0,
-						'stroke-linejoin': 'miter',
-					},
-				},
-				double: {
-					width: 4,
 					height: 6,
-					attrs: {
+					attrs: Object.assign({
+						'fill': 'rgba(0,0,0,0.9)',
+					}, PENCIL),
+					render: null,
+				},
+				'double': {
+					width: 4,
+					height: 8,
+					attrs: Object.assign({
 						'fill': 'none',
-						'stroke': '#000000',
-						'stroke-width': 1,
-						'stroke-linejoin': 'miter',
-					},
+					}, PENCIL),
+					render: null,
 				},
 			},
 			label: {
@@ -330,6 +339,10 @@ define([
 			this.agentCap.cross.render = this.renderCross.bind(this);
 			this.agentCap.bar.render = this.renderBar.bind(this);
 			this.agentCap.box.boxRenderer = this.renderBox.bind(this);
+			this.connect.arrow.single.render = this.renderArrowHead.bind(this);
+			this.connect.arrow.double.render = this.renderArrowHead.bind(this);
+			this.connect.line.solid.render = this.renderConnect.bind(this);
+			this.connect.line.dash.render = this.renderConnect.bind(this);
 			this.notes.note.boxRenderer = this.renderNote.bind(this);
 			this.notes.state.boxRenderer = this.renderState.bind(this);
 		}
@@ -374,16 +387,22 @@ define([
 			return Math.asin(rand * 2 - 1) * 2 * range / Math.PI;
 		}
 
-		lineNodes(p1, p2, {var1 = 1, var2 = 1, move = true}) {
+		lineNodes(p1, p2, {
+			var1 = 1,
+			var2 = 1,
+			varX = 1,
+			varY = 1,
+			move = true,
+		}) {
 			const length = Math.sqrt(
 				(p2.x - p1.x) * (p2.x - p1.x) +
 				(p2.y - p1.y) * (p2.y - p1.y)
 			);
 			const rough = Math.min(Math.sqrt(length) * 0.2, 5);
-			const x1 = p1.x + this.vary(var1 * rough);
-			const y1 = p1.y + this.vary(var1 * rough);
-			const x2 = p2.x + this.vary(var2 * rough);
-			const y2 = p2.y + this.vary(var2 * rough);
+			const x1 = p1.x + this.vary(var1 * varX * rough);
+			const y1 = p1.y + this.vary(var1 * varY * rough);
+			const x2 = p2.x + this.vary(var2 * varX * rough);
+			const y2 = p2.y + this.vary(var2 * varY * rough);
 
 			// -1 = p1 higher, 1 = p2 higher
 			const upper = Math.max(-1, Math.min(1,
@@ -410,14 +429,12 @@ define([
 			};
 		}
 
-		renderLine(p1, p2, {var1 = 1, var2 = 1}) {
-			const line = this.lineNodes(p1, p2, {var1, var2});
-			const shape = svg.make('path', {
+		renderLine(p1, p2, lineOptions) {
+			const line = this.lineNodes(p1, p2, lineOptions);
+			const shape = svg.make('path', Object.assign({
 				'd': line.nodes,
-				'stroke': 'rgba(0,0,0,0.7)',
-				'stroke-width': 0.8,
 				'fill': 'none',
-			});
+			}, PENCIL));
 			return shape;
 		}
 
@@ -443,12 +460,10 @@ define([
 				{var1: 0, var2: 0.3, move: false}
 			);
 
-			const shape = svg.make('path', {
+			const shape = svg.make('path', Object.assign({
 				'd': lT.nodes + lR.nodes + lB.nodes + lL.nodes,
-				'stroke': 'rgba(0,0,0,0.7)',
-				'stroke-width': 0.8,
 				'fill': fill || '#FFFFFF',
-			});
+			}, PENCIL));
 
 			return shape;
 		}
@@ -492,7 +507,7 @@ define([
 			);
 
 			const g = svg.make('g');
-			g.appendChild(svg.make('path', {
+			g.appendChild(svg.make('path', Object.assign({
 				'd': (
 					lT.nodes +
 					lF.nodes +
@@ -500,20 +515,52 @@ define([
 					lB.nodes +
 					lL.nodes
 				),
-				'stroke': 'rgba(0,0,0,0.7)',
-				'stroke-width': 0.8,
 				'fill': '#FFFFFF',
-			}));
-			g.appendChild(svg.make('path', {
+			}, PENCIL)));
+			g.appendChild(svg.make('path', Object.assign({
 				'd': lF1.nodes + lF2.nodes,
-				'stroke': 'rgba(0,0,0,0.7)',
-				'stroke-width': 0.8,
 				'fill': 'none',
-			}));
+			}, PENCIL)));
 
 			return g;
 		}
 
+		renderConnect({x1, dx1, x2, dx2, y}, attrs) {
+			const ln = this.lineNodes(
+				{x: x1 + dx1, y},
+				{x: x2 + dx2, y},
+				{varX: 0.3}
+			);
+			return {
+				shape: svg.make('path', Object.assign({'d': ln.nodes}, attrs)),
+				p1: {x: ln.p1.x - dx1, y: ln.p2.y},
+				p2: {x: ln.p2.x - dx2, y: ln.p2.y},
+			};
+		}
+
+		renderArrowHead({x, y, dx, dy, attrs}) {
+			const w = dx * (1 + this.vary(0.2));
+			const h = dy * (1 + this.vary(0.3));
+			const l1 = this.lineNodes(
+				{x: x + w, y: y - h},
+				{x, y},
+				{var1: 2.0, var2: 0.2}
+			);
+			const l2 = this.lineNodes(
+				l1.p2,
+				{x: x + w, y: y + h},
+				{var1: 0, var2: 2.0, move: false}
+			);
+			const l3 = (attrs.fill === 'none') ? {nodes: ''} : this.lineNodes(
+				l2.p2,
+				l1.p1,
+				{var1: 0, var2: 0, move: false}
+			);
+			return svg.make('path', Object.assign({
+				'd': l1.nodes + l2.nodes + l3.nodes,
+			}, attrs));
+		}
+
 		renderState({x, y, width, height}) {
 			// TODO: rounded corners
 			return this.renderBox({x, y, width, height});
@@ -537,12 +584,10 @@ define([
 				{}
 			);
 
-			return svg.make('path', {
+			return svg.make('path', Object.assign({
 				'd': l1.nodes + l2.nodes,
-				'stroke': 'rgba(0,0,0,0.7)',
-				'stroke-width': 0.8,
 				'fill': 'none',
-			});
+			}, PENCIL));
 		}
 
 		getNote(type) {
@@ -563,7 +608,7 @@ define([
 				const shape = this.renderLine(
 					{x, y: y0},
 					{x, y: y1},
-					{}
+					{varY: 0.3}
 				);
 				shape.setAttribute('class', className);
 				container.appendChild(shape);