Article export + Bootstrap toggle + export change log

- patchScore() now accepts articles[] and returns { text, log } instead
  of a plain string. Dirty articles are re-serialized into the articles:
  block (block style, replacing any existing flow-style entries). Clean
  articles bypass the patcher entirely.
- article.isDirty is set on direct property edits so the exporter can
  distinguish directly changed entities from propagated dirty state.
- patchScore() log collects { level:'changed', path } for each patched
  article/instrument/bar, and a { level:'info', message } entry for the
  count of bar documents passed through unchanged.
- CP pane shows the export log above the status poller after each export.
- Article scope toggle replaced with Bootstrap form-check form-switch;
  hand-rolled .se-toggle CSS removed.
- Test suite updated for { text, log } return; 11 new assertions (188 total).

static/components/PaneCP.js

@@ -67,7 +67,11 @@ export const PaneCP = {
             try {
                 const raw = await fetchScoreText(props.store.credentials);
                 props.store.rawScoreText = raw;
-                const patched = patchScore(raw, props.store.scoreModel.instruments, props.store.scoreModel.bars, props.store.scoreModel.info);
+                const model = props.store.scoreModel;
+                const { text: patched, log } = patchScore(
+                    raw, model.instruments, model.bars, model.info, model.articles ?? [],
+                );
+                props.store.exportLog = log;
                 await putScoreText(patched, props.store.credentials);
                 props.store.synthesisStatus = { frozen: false, currently_rendered_notes: 0, notes_in_total: 0 };
             } catch (e) {
@@ -134,6 +138,18 @@ export const PaneCP = {
                 // Export error
                 exportError.value ? h('div', { class: 'se-error' }, exportError.value) : null,
 
+                // Export log (shown after export, cleared on next import)
+                store.exportLog?.length
+                    ? h('div', { class: 'se-export-log' },
+                        store.exportLog.map((entry, i) =>
+                            h('div', {
+                                key: i,
+                                class: entry.level === 'changed' ? 'se-export-changed' : 'se-export-info',
+                            }, entry.path ? `→ ${entry.path}` : entry.message)
+                        )
+                      )
+                    : null,
+
                 // Status poller (while running)
                 store.synthesisStatus && !store.synthesisStatus.frozen
                     ? h(StatusPoller, { store }) : null,

static/components/PaneFO.js

@@ -155,7 +155,7 @@ export const PaneFO = {
                         : null,
                 );
             } else if (node.type === 'article') {
-                const markDirty = () => props.store.markDirty();
+                const markDirty = () => { node.isDirty = true; props.store.markDirty(); };
                 const rowStyle = 'display:flex;gap:0.4rem;align-items:center;padding:0.2rem 0';
                 children.push(
                     h('h4', H4, `Article: ${node.name}`),
@@ -180,14 +180,20 @@ export const PaneFO = {
                                     style: 'flex:1;min-width:6em',
                                     onInput: onValInput,
                                 }),
-                                h('button', {
+                                h('div', { class: 'form-check form-switch mb-0' }, [
-                                    class: 'se-toggle',
+                                    h('input', {
-                                    role: 'switch',
+                                        class: 'form-check-input mt-0',
-                                    'aria-checked': String(isOverwrite),
+                                        type: 'checkbox',
-                                    onClick: flip,
+                                        role: 'switch',
-                                }),
+                                        id: `prop-scope-${idx}`,
-                                h('span', { class: 'se-toggle-label active', style: 'min-width:4.5em' },
+                                        checked: isOverwrite,
-                                    isOverwrite ? 'overwrite' : 'default'),
+                                        onChange: flip,
+                                    }),
+                                    h('label', {
+                                        class: 'form-check-label',
+                                        for: `prop-scope-${idx}`,
+                                    }, isOverwrite ? 'overwrite' : 'default'),
+                                ]),
                                 h('button', {
                                     class: 'se-btn-remove',
                                     title: 'Remove property',

static/exporter.js

@@ -137,8 +137,46 @@ export function exportInstrument(instr) {
     return lines.join('\n');
 }
 
+// ── Articles ───────────────────────────────────────────────────────────────
+// RFC §4.3: articles: MAPPING { LABEL: { ATTR: VALUE ... } ... }
+
+function serializeArticleValue(v) {
+    if (typeof v === 'boolean') return String(v);
+    if (typeof v === 'number') return String(v);
+    const s = String(v);
+    return /[:#\[\]{}&*!,|>'"%@`]/.test(s) ? JSON.stringify(s) : s;
+}
+
+function buildArticlesBlock(articles) {
+    const lines = ['articles:'];
+    for (const art of articles) {
+        const props = (art.properties ?? []).filter(p => p.name);
+        if (!props.length) continue;
+        lines.push(`  ${art.name}:`);
+        for (const p of props) lines.push(`    ${p.name}: ${serializeArticleValue(p.value)}`);
+    }
+    return lines.length > 1 ? lines.join('\n') : null;
+}
+
+function patchArticles(text, articles) {
+    const newBlock = buildArticlesBlock(articles);
+    if (!newBlock) return text;
+    const lines = text.split('\n');
+    const artIdx = lines.findIndex(l => /^articles\s*:/.test(l));
+    if (artIdx !== -1) {
+        let end = artIdx + 1;
+        while (end < lines.length && (lines[end] === '' || lines[end].startsWith(' ') || lines[end].startsWith('\t'))) end++;
+        lines.splice(artIdx, end - artIdx, newBlock);
+    } else {
+        const instrIdx = lines.findIndex(l => /^instrument\s/.test(l));
+        const insertAt = instrIdx !== -1 ? instrIdx : lines.length;
+        lines.splice(insertAt, 0, newBlock, '');
+    }
+    return lines.join('\n');
+}
+
 // ── Score patch ────────────────────────────────────────────────────────────
-// Replace dirty instrument blocks and dirty bar _meta blocks.
+// Replace dirty article, instrument, and bar _meta blocks.
 // Voice note content in bar documents is left verbatim.
 
 const META_KEYS = ['title', 'composer', 'source', 'encrypter'];
@@ -242,24 +280,40 @@ function patchBarMeta(doc, bar) {
     return out.join('\n');
 }
 
-export function patchScore(rawScoreText, instruments, bars = [], info = null) {
+export function patchScore(rawScoreText, instruments, bars = [], info = null, articles = []) {
+    const log = [];
     const SEP = '\n---\n';
     const [header, ...barDocs] = rawScoreText.split(SEP);
 
-    const patchedHeader = patchInstrumentHeader(patchMetadata(header, info), instruments);
+    let patchedHeader = patchMetadata(header, info);
 
-    if (!barDocs.length) return patchedHeader;
+    const dirtyArticles = articles.filter(a => a.isDirty);
+    if (dirtyArticles.length) {
+        patchedHeader = patchArticles(patchedHeader, articles);
+        for (const a of dirtyArticles) log.push({ level: 'changed', path: `articles / ${a.name}` });
+    }
+
+    patchedHeader = patchInstrumentHeader(patchedHeader, instruments);
+    for (const i of instruments.filter(i => i.isDirty)) log.push({ level: 'changed', path: `instrument / ${i.name}` });
+
+    if (!barDocs.length) return { text: patchedHeader, log };
 
     const barMap = {};
     for (const bar of bars) barMap[bar.id] = bar;
 
+    let passedThrough = 0;
     const patchedBarDocs = barDocs.map(doc => {
         const m = doc.match(/^_id:\s*(\S+)/m);
-        if (!m) return doc;
+        if (!m) { passedThrough++; return doc; }
         const bar = barMap[m[1]];
-        if (!bar?.isDirty) return doc;
+        if (!bar?.isDirty) { passedThrough++; return doc; }
+        log.push({ level: 'changed', path: `bar / ${bar.id}` });
         return patchBarMeta(doc, bar);
     });
 
-    return [patchedHeader, ...patchedBarDocs].join(SEP);
+    if (passedThrough > 0) {
+        log.push({ level: 'info', message: `${passedThrough} bar document${passedThrough !== 1 ? 's' : ''} passed through unchanged` });
+    }
+
+    return { text: [patchedHeader, ...patchedBarDocs].join(SEP), log };
 }

static/store.js

@@ -8,6 +8,7 @@ export const store = reactive({
     synthesisStatus: null,
     isDirty: false,
     errorMessage: '',
+    exportLog: [],
 
     setFocus(path) {
         this.focusPath = path;

static/style.css

@@ -356,47 +356,19 @@
     font-family: monospace;
 }
 
-/* Two-state toggle (scope: defaults / overwrites). The label preceding the
+/* Export log (shown in CP pane after export) */
-   switch tells the user what the two ends mean; the thumb position shows
+.se-export-log {
-   which is active. Click anywhere on the track to flip. */
+    font-size: 0.75rem;
-.se-toggle {
+    font-family: monospace;
-    position: relative;
+    border: 1px solid #333;
-    width: 2.2rem;
+    padding: 0.3rem 0.4rem;
-    height: 1.1rem;
+    margin: 0.4rem 0;
-    flex-shrink: 0;
-    border: 1px solid #555;
-    border-radius: 0.55rem;
-    background: #2a2a2a;
-    cursor: pointer;
-    padding: 0;
 }
-.se-toggle::after {
+.se-export-changed {
-    content: '';
+    color: #aad4aa;
-    position: absolute;
-    top: 1px;
-    left: 1px;
-    width: 0.85rem;
-    height: 0.85rem;
-    border-radius: 50%;
-    background: #999;
-    transition: transform 0.12s ease, background 0.12s ease;
 }
-.se-toggle[aria-checked="true"] {
+.se-export-info {
-    background: #2d4a2d;
-    border-color: #4a7a4a;
-}
-.se-toggle[aria-checked="true"]::after {
-    transform: translateX(1.1rem);
-    background: #b0e0b0;
-}
-.se-toggle-label {
-    font-size: 0.7rem;
     color: #888;
-    user-select: none;
-    min-width: 4em;
-}
-.se-toggle-label.active {
-    color: #d8d8d8;
 }
 
 .se-prop-key, .se-prop-val {

test-parser.mjs

@@ -230,12 +230,14 @@ const rawScore = readFileSync(SCORE_FIXTURE, 'utf8');
 // pathetique.spls contains alpha and ki; dev/piano is a linked instrument not embedded.
 // Mark only alpha as dirty, verify ki is preserved verbatim.
 const patchInstruments = model.instruments.map(i => ({ ...i, isDirty: i.name === 'alpha' }));
-const patched = patchScore(rawScore, patchInstruments);
+const { text: patched, log: patchLog } = patchScore(rawScore, patchInstruments);
 const patchedLines = patched.split('\n');
 
 ok('patched score still has instrument alpha:', patchedLines.some(l => /^instrument\s+alpha\s*:/.test(l)));
 ok('patched score still has instrument ki:', patchedLines.some(l => /^instrument\s+ki\s*:/.test(l)));
 ok('patched score alpha block contains character:', patchedLines.some(l => l.trim() === 'character:'));
+ok('patchScore log records alpha as changed', patchLog.some(e => e.level === 'changed' && e.path === 'instrument / alpha'));
+ok('patchScore log does not record ki (not dirty)', !patchLog.some(e => e.path?.includes('ki')));
 
 // Ki is clean — its block must appear verbatim (check a unique line from the original)
 const kiOrigLines = rawScore.split('\n').filter(l => l.startsWith('instrument ki:') || (l.startsWith(' ') && rawScore.indexOf('instrument ki:') < rawScore.indexOf(l)));
@@ -430,7 +432,7 @@ const cleanBar = {
     stressor: null, tempoLevels: null,
     upperStressBound: null, lowerStressBound: null, tempoShape: null,
 };
-const barPatched = patchScore(RAW_SCORE_WITH_BARS, [], [dirtyBar, cleanBar]);
+const { text: barPatched, log: barLog } = patchScore(RAW_SCORE_WITH_BARS, [], [dirtyBar, cleanBar]);
 const barPatchedLines = barPatched.split('\n');
 ok('dirty bar _meta updated with new BPM', barPatched.includes('beats_per_minute: 140'));
 ok('dirty bar stress_pattern updated', barPatched.includes('stress_pattern: 2,3;1'));
@@ -438,6 +440,8 @@ ok('dirty bar voice content preserved', barPatched.includes('- C4 4'));
 ok('clean bar unchanged', barPatched.includes('beats_per_minute: 100'));
 ok('clean bar voice preserved', barPatched.includes('- D4 4'));
 ok('document separators preserved', (barPatched.match(/\n---\n/g) ?? []).length === 2);
+ok('bar log records dirty bar as changed', barLog.some(e => e.level === 'changed' && e.path === 'bar / 001P1L1M1'));
+ok('bar log has pass-through info entry', barLog.some(e => e.level === 'info' && e.message?.includes('passed through')));
 
 // ── patchScore metadata ────────────────────────────────────────────────────
 section('patchScore metadata');
@@ -450,7 +454,7 @@ instrument alpha:
     A: "1:0,10;1,0"
 `;
 const updatedInfo = { title: 'New Title', composer: 'New Composer', source: '', encrypter: 'Me' };
-const metaPatched = patchScore(META_SCORE, [], [], updatedInfo);
+const { text: metaPatched } = patchScore(META_SCORE, [], [], updatedInfo);
 ok('existing title replaced', metaPatched.includes('title: New Title'));
 ok('existing composer replaced', metaPatched.includes('composer: New Composer'));
 ok('empty value leaves existing line', metaPatched.includes('source: Some Book'));
@@ -458,13 +462,32 @@ ok('new key prepended', metaPatched.includes('encrypter: Me'));
 ok('instrument block untouched', metaPatched.includes('instrument alpha:'));
 
 const META_SCORE_NO_TITLE = `composer: Bach\n\ninstrument ki:\n  character:\n`;
-const noTitlePatched = patchScore(META_SCORE_NO_TITLE, [], [], { title: 'Fugue', composer: 'Bach' });
+const { text: noTitlePatched } = patchScore(META_SCORE_NO_TITLE, [], [], { title: 'Fugue', composer: 'Bach' });
 ok('missing title prepended', noTitlePatched.includes('title: Fugue'));
 ok('existing composer not duplicated', (noTitlePatched.match(/^composer:/mg) ?? []).length === 1);
 
-const nullInfoPatched = patchScore(META_SCORE, [], [], null);
+const { text: nullInfoPatched } = patchScore(META_SCORE, [], [], null);
 ok('null info leaves metadata unchanged', nullInfoPatched.includes('title: Old Title'));
 
+// ── patchScore articles ────────────────────────────────────────────────────
+section('patchScore articles');
+const ART_SCORE = `articles:\n    f: { add_stress: 3 }\n\ninstrument alpha:\n  character:\n`;
+const artModel = [{ name: 'f', isDirty: true, properties: [{ name: 'add_stress', value: 4, scope: 'defaults' }] }];
+const { text: artPatched, log: artLog } = patchScore(ART_SCORE, [], [], null, artModel);
+ok('article block replaced', artPatched.includes('articles:'));
+ok('updated value written', artPatched.includes('add_stress: 4'));
+ok('old flow-style entry removed', !artPatched.includes('{ add_stress: 3 }'));
+ok('instrument line still present', artPatched.includes('instrument alpha:'));
+ok('article change logged', artLog.some(e => e.level === 'changed' && e.path === 'articles / f'));
+
+const ART_SCORE_NO_ART = `instrument alpha:\n  character:\n`;
+const { text: artInserted } = patchScore(ART_SCORE_NO_ART, [], [], null, artModel);
+ok('article block inserted before instrument when missing', artInserted.indexOf('articles:') < artInserted.indexOf('instrument alpha:'));
+
+const artClean = [{ name: 'f', isDirty: false, properties: [{ name: 'add_stress', value: 3, scope: 'defaults' }] }];
+const { text: artUntouched } = patchScore(ART_SCORE, [], [], null, artClean);
+ok('clean articles section left verbatim', artUntouched.includes('{ add_stress: 3 }'));
+
 // ── Motif parsing ─────────────────────────────────────────────────────────
 section('Motif parsing — dynamic motif');
 const DYN_MOTIF = `00 bar '001P1L1M1'