VR keyboard: unused exports and fields removed

textmodel's lastReset (the patch logs the reason itself), __sfuiSwipe.model,
corrector's distance/fold and the decoder's N/W/cost/resample exports were
read by nothing (patch, tests, replay script).

modules/vr-keyboard/corrector.js

@@ -11,7 +11,7 @@
 // same-folded variant is >= 1 zipf more frequent ("cant" -> "can't").
 // Memory: one folded string + 26 bytes per word.
 (() => {
-  const VERSION = 2;
+  const VERSION = 3;
   const fold = (w) => w.toLowerCase().replace(/['’-]/g, '')
     .replace(/ä/g, 'ae').replace(/ö/g, 'oe').replace(/ü/g, 'ue').replace(/ß/g, 'ss');
   const VARIANT_GAP = 1.0;
@@ -114,8 +114,8 @@
       return pickWords(prefix, hits.sort((a, b) => dict.freq[b] - dict.freq[a]), max);
     }
 
-    return { corrections, completions, setLayout, distance };
+    return { corrections, completions, setLayout };
   }
 
-  return { VERSION, create, fold };
+  return { VERSION, create };
 })()

modules/vr-keyboard/patch.js

@@ -156,7 +156,6 @@
 
     // ---- text model, hooks, resets --------------------------------------------------
     const model = T.create({ size: O.bufferChars });
-    S.model = model;
     let lastActivity = Date.now();
     const activity = () => { lastActivity = Date.now(); };
     let refreshQueued = false;

modules/vr-keyboard/swipe-decoder.js

@@ -1,12 +1,12 @@
 // swipe-decoder.js: swipe path -> words. Evaluates to { VERSION, parseDict,
-// layout, decode, ... }. SHARK2-style template matching (Kristensson & Zhai 2004):
+// layout, decode }. SHARK2-style template matching (Kristensson & Zhai 2004):
 // each word's ideal path runs through its key centres; candidates starting
 // and ending near the path's ends, with every key near the path, are scored
 // by point distances of the resampled paths (proportional and DTW), how
 // closely the path passes their keys in order, path length and frequency.
 // Distances are in key widths. ' and - are typed, not swiped.
 (() => {
-  const VERSION = 3;
+  const VERSION = 4;
   const N = 32;                                   // resample points
   const SKIP = new Set(["'", '-', '\u2019']);
   // Cost weights and pruning limits (tuned with tests/swipe-decoder.test.mjs; distances in key widths).
@@ -225,5 +225,5 @@
     return res;
   }
 
-  return { VERSION, N, W, cost, parseDict, layout, decode, resample };
+  return { VERSION, parseDict, layout, decode };
 })()

modules/vr-keyboard/textmodel.js

@@ -9,7 +9,7 @@
 // replacement (swipe candidates, corrections, completions) goes through an
 // intact anchor, so it deletes exactly what it typed or nothing.
 (() => {
-  const VERSION = 5;
+  const VERSION = 6;
   const TERMINATORS = new Set([...' .,!?;:']);
   const OPENING = new Set([...'([{<"\'„“‚‘«‹¿¡/@#-_']);   // no auto-space after these
   const isWordChar = (c) => /[\p{L}\p{N}'’-]/u.test(c);
@@ -27,7 +27,6 @@
         m.startKnown = boundary;
         m.version++;
         epoch++;
-        m.lastReset = why;
       },
       freeze() { epoch++; },
       // Returns false if the key reset the model.