feat: added scale buttons

lib/measurements/matcher.js

@@ -353,7 +353,7 @@ function findVolumes(text) {
   const results = [];
 
   const volumeRe = new RegExp(
-    `(${AMOUNT})\\s+(${VOLUME_UNIT})\\b`,
+    `(${AMOUNT})\\s*(${VOLUME_UNIT})\\b`,
     'gi'
   );
 
@@ -407,6 +407,38 @@ function findTimes(text) {
   return results;
 }
 
+// ─── Count Matcher ────────────────────────────────────────
+
+/**
+ * Find bare numeric counts in text (no unit attached).
+ * These represent ingredient quantities like "eggs 3" or "biscuits 20-24".
+ * Overlap with unit-bearing matches is resolved by deduplication (longer wins).
+ */
+function findCounts(text) {
+  const results = [];
+
+  const countRe = new RegExp(
+    `(${AMOUNT})(?=\\s*$|\\s*,|\\s*\\)|\\s*\\]|\\s*;|\\s+[^\\dxX~])`,
+    'g'
+  );
+
+  let m;
+  while ((m = countRe.exec(text)) !== null) {
+    const amount = parseAmount(m[1]);
+    results.push({
+      match: m[1],
+      index: m.index,
+      type: 'count',
+      amount,
+      unit: null,
+      approximate: typeof amount.approximate === 'boolean' ? amount.approximate : false,
+      alt: null,
+    });
+  }
+
+  return results;
+}
+
 // ─── Main Matcher ─────────────────────────────────────────
 
 /**
@@ -424,6 +456,7 @@ function findAllMeasurements(text) {
     ...findWeights(text),
     ...findVolumes(text),
     ...findTimes(text),
+    ...findCounts(text),
   ];
 
   // Sort by position
@@ -466,6 +499,7 @@ module.exports = {
   findWeights,
   findVolumes,
   findTimes,
+  findCounts,
 
   // Parsing utilities (exported for testing)
   parseAmount,

lib/measurements/plugin.js

@@ -136,6 +136,70 @@ function toImperialValue(value, unit) {
   }
 }
 
+// ─── Base Unit Conversion (for scaling) ─────────────────
+
+function toBaseGrams(value, unit) {
+  switch (unit) {
+    case 'g':  return value;
+    case 'kg': return value * 1000;
+    case 'oz': return value * 28.3495;
+    case 'lb': return value * 453.592;
+    default:   return value;
+  }
+}
+
+function toBaseMl(value, unit) {
+  switch (unit) {
+    case 'ml':         return value;
+    case 'L':          return value * 1000;
+    case 'cup':        return value * 236.588;
+    case 'tablespoon': return value * 14.787;
+    case 'teaspoon':   return value * 4.929;
+    case 'quart':      return value * 946.353;
+    case 'gallon':     return value * 3785.41;
+    case 'pint':       return value * 473.176;
+    case 'fl oz':      return value * 29.5735;
+    default:           return value;
+  }
+}
+
+function computeScaleData(measurement) {
+  const { type, amount, unit, approximate } = measurement;
+  if (unit === 'parts by volume' || unit === 'parts by weight') return null;
+  if (type !== 'weight' && type !== 'volume' && type !== 'count') return null;
+
+  if (type === 'count') {
+    if (amount.min !== undefined) {
+      return {
+        base: [amount.min.value, amount.max.value],
+        type: 'count',
+        approx: approximate || amount.min.approximate || false,
+      };
+    }
+    return {
+      base: amount.value,
+      type: 'count',
+      approx: approximate || false,
+    };
+  }
+
+  const toBase = type === 'weight' ? toBaseGrams : toBaseMl;
+
+  if (amount.min !== undefined) {
+    return {
+      base: [toBase(amount.min.value, unit), toBase(amount.max.value, unit)],
+      type: type,
+      approx: approximate || amount.min.approximate || false,
+    };
+  }
+
+  return {
+    base: toBase(amount.value, unit),
+    type: type,
+    approx: approximate || false,
+  };
+}
+
 // ─── Time Formatting ────────────────────────────────────
 
 function toMinutes(value, unit) {
@@ -183,6 +247,12 @@ function generateTexts(measurement) {
     return { defaultText: text, altText: text };
   }
 
+  // Bare counts — just display the number, no conversion
+  if (type === 'count') {
+    const text = formatCountText(amount, approximate);
+    return { defaultText: text, altText: text };
+  }
+
   if (type === 'time') {
     return generateTimeTexts(amount, unit, approximate);
   }
@@ -190,6 +260,14 @@ function generateTexts(measurement) {
   return generateUnitTexts(amount, unit, approximate, type);
 }
 
+function formatCountText(amount, approximate) {
+  const prefix = approximate ? '~' : '';
+  if (amount.min !== undefined) {
+    return prefix + formatNumber(amount.min.value) + '-' + formatNumber(amount.max.value);
+  }
+  return prefix + formatNumber(amount.value);
+}
+
 function generateTimeTexts(amount, unit, approximate) {
   if (amount.min !== undefined) {
     const prefix = amount.min.approximate ? '~' : '';
@@ -306,6 +384,13 @@ function replaceMeasurementsInToken(token, Token) {
     open.attrSet('data-default', defaultText);
     open.attrSet('data-alt', altText);
     open.attrSet('title', m.match);
+
+    // Add scaling data for weight/volume
+    const scaleData = computeScaleData(m);
+    if (scaleData) {
+      open.attrSet('data-scalable', JSON.stringify(scaleData));
+    }
+
     newTokens.push(open);
 
     // Display metric-normalized text by default