Implement SonicWeave Interchange importer

Update sonic-weave dependency.
Update moment-of-symmetry dependency.

ref #34

package.json

@@ -19,10 +19,10 @@
     "isomorphic-qwerty": "^0.0.2",
     "ji-lattice": "^0.2.0",
     "jszip": "^3.10.1",
-    "moment-of-symmetry": "^0.8.2",
+    "moment-of-symmetry": "^0.8.3",
     "pinia": "^2.1.7",
     "qs": "^6.12.0",
-    "sonic-weave": "^0.10.3",
+    "sonic-weave": "^0.10.4",
     "sw-synth": "^0.1.0",
     "values.js": "^2.1.1",
     "vue": "^3.3.4",

src/components/NewScale.vue

@@ -52,6 +52,7 @@ const SubharmonicSeriesModal = defineAsyncComponent(
 const element = ref<typeof DropdownGroup | null>(null)
 const scalaFile = ref<HTMLInputElement | null>(null)
 const anamarkFile = ref<HTMLInputElement | null>(null)
+const xendevsFile = ref<HTMLInputElement | null>(null)
 
 const showConcordanceShellModal = ref(false)
 const showCpsModal = ref(false)
@@ -145,6 +146,7 @@ defineExpose({ blur })
       <li class="divider"></li>
       <a href="#" @click="scalaFile!.click()"><li>Import .scl</li></a>
       <a href="#" @click="anamarkFile!.click()"><li>Import .tun</li></a>
+      <a href="#" @click="xendevsFile!.click()"><li>Import .swi</li></a>
       <li class="divider"></li>
       <a href="#" @click="clearScale"><li>Clear scale</li></a>
       <a href="#" @click="showPresetModal = true"><li>Load preset scale</li></a>
@@ -166,6 +168,13 @@ defineExpose({ blur })
     style="display: none"
     @change="doImport('anamark', $event)"
   />
+  <input
+    type="file"
+    ref="xendevsFile"
+    accept=".swi"
+    style="display: none"
+    @change="doImport('xendevs', $event)"
+  />
 
   <Teleport to="body">
     <!-- v-if is required to prevent premature asyncs while :show makes the focus watcher trigger -->

src/importers/__tests__/xen-devs.spec.ts

@@ -0,0 +1,35 @@
+import { describe, it, expect } from 'vitest'
+
+import { SonicWeaveInterchangeImporter } from '../xen-devs'
+
+describe('SonicWeave Interchange importer', () => {
+  it('can parse text', () => {
+    const importer = new SonicWeaveInterchangeImporter()
+    const { sourceText, name } = importer.parseText(`
+      (* Created using SWI exporter unit test v0.0.0 *)
+
+      "Unit Test Scale"
+
+      1 = [1 3 1 1>@Hz.2.5.11
+
+      [1/12> "" niente
+      [1 1 -1> "" niente
+      [4/5> "" niente
+      [0 -1 1> "" niente
+      [531.234049066756>@rc "" niente
+      [-20 20 -5> "" niente
+      [1> "" niente
+    `)
+
+    expect(name).toBe('Unit Test Scale')
+    expect(sourceText).toBe(`"Unit Test Scale"
+1/1 = 440 Hz
+1\\12
+6/5
+4\\5
+5/3
+531.2340490667464r¢
+3486784401/3276800000
+2`)
+  })
+})

src/importers/index.ts

@@ -1,10 +1,12 @@
 import type { ImportResult } from '@/importers/base'
 import { AnaMarkImporter } from '@/importers/anamark'
 import { ScalaImporter } from '@/importers/scala'
+import { SonicWeaveInterchangeImporter } from '@/importers/xen-devs'
 
 const IMPORTERS = {
   scalascl: ScalaImporter,
-  anamark: AnaMarkImporter
+  anamark: AnaMarkImporter,
+  xendevs: SonicWeaveInterchangeImporter
 }
 
 export type ImporterKey = keyof typeof IMPORTERS

src/importers/xen-devs.ts

@@ -0,0 +1,23 @@
+import { TextImporter, type ImportResult } from '@/importers/base'
+import { RootContext, getSourceVisitor, parseAST } from 'sonic-weave'
+
+// Specs: https://github.com/xenharmonic-devs/sonic-weave/blob/main/documentation/interchange.md
+export class SonicWeaveInterchangeImporter extends TextImporter {
+  parseText(input: string): ImportResult {
+    const ast = parseAST(input)
+    const visitor = getSourceVisitor(false)
+    visitor.executeProgram(ast)
+    for (const interval of visitor.currentScale) {
+      // Strip interchange format
+      interval.node = undefined
+      if (interval.isRelative() && interval.value.isFractional()) {
+        interval.domain = 'linear'
+      }
+    }
+    const result = {
+      name: visitor.rootContext?.title,
+      sourceText: visitor.expand(new RootContext())
+    }
+    return result
+  }
+}