feat: add a script to see diff across files

Author: asdofindia

scripts/explore.js

@@ -0,0 +1,41 @@
+const fs = require('fs');
+const { readMap } = require('./read-map');
+const a = process.argv[2];
+const b = process.argv[3];
+if (!a) {
+    console.error("Please specify at least one file to explore");
+    process.exit(1);
+}
+
+const left = readMap(a);
+const right = b ? readMap(b) : {};
+
+const ASCII_START = 33;
+const ASCII_END = 256;
+
+const data = [];
+
+const unicodeWrap = (chars) => {
+    try {
+        return chars + " (" + chars.split('').map(c => {
+            return c.codePointAt(0).toString(16).padStart(4, "0").toUpperCase()
+        }).join(' + ') + " )"
+    } catch {
+        console.log(typeof chars)
+        console.log(`failed at ${chars.charCodeAt(0)}`)
+    }
+}
+
+for (let i = ASCII_START; i < ASCII_END; i++) {
+    const char = String.fromCharCode(i);
+    const leftChar = left[char];
+    const rightChar = right[char];
+    const same = leftChar === rightChar;
+    const entry = { char }
+    if (leftChar !== undefined) entry[a] = unicodeWrap(leftChar);
+    if (rightChar !== undefined) entry[b] = unicodeWrap(rightChar);
+    if (!same) entry["same"] = "NOOOO";
+    data.push(entry);
+}
+
+console.table(data, ["char", a, b, "same"])