add plotGaps option to SvgLine and prevent plotting nulls by default

components/SvgLine.svelte

@@ -7,10 +7,30 @@
 	export let data;
 	export let x = default_x;
 	export let y = default_y;
+	export let plotGaps = false
 
-	$: d = 'M' + data
-		.map((d, i) => `${$x_scale(x(d, i))},${$y_scale(y(d, i))}`)
-		.join('L');
+	let d
+
+	$: if (plotGaps) {
+		d = 'M' + data
+            .filter((d, i) => y(d, i) != null)
+			.map((d, i) => `${$x_scale(x(d, i))},${$y_scale(y(d, i))}`)
+			.join('L')
+	}
+	else {
+		d = data
+		.map((d, i) => {
+			let motion = 'L'
+			if (y(d) == null) {
+				return
+			}
+			if (i == 0 || y(data[i - 1]) == null) {
+				motion = 'M'
+			}
+			return `${motion}${$x_scale(x(d, i))},${$y_scale(y(d, i))}`
+		})
+		.join('')
+	}
 </script>
 
-<slot {d}></slot>
+<slot {d}></slot>

package.json

@@ -1,7 +1,8 @@
 {
-  "name": "@sveltejs/pancake",
-  "version": "0.0.14",
+  "name": "pancake-with-nulls",
+  "version": "0.0.15",
   "description": "Experimental charting library for Svelte",
+  "private": false,
   "module": "index.mjs",
   "svelte": "index.mjs",
   "files": [
@@ -13,9 +14,12 @@
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1"
   },
+  "publishConfig": {
+    "registry": "https://registry.npmjs.com/"
+  },
   "repository": {
     "type": "git",
-    "url": "git+ssh://git@github.com/Rich-Harris/pancake.git"
+    "url": "git+git@github.com:briancray/pancake.git"
   },
   "keywords": [
     "svelte",
@@ -30,6 +34,6 @@
   },
   "homepage": "https://github.com/Rich-Harris/pancake#readme",
   "dependencies": {
-    "yootils": "0.0.16"
+    "yootils": "0.0.17"
   }
 }