core utils updates

packages/bare-os-coreutils/src/tr.js

@@ -1,3 +1,27 @@
+const TR_CLASS = {
+  '[:alnum:]':
+    'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789',
+  '[:alpha:]': 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ',
+  '[:blank:]': ' \t',
+  '[:cntrl:]': [...Array(32).keys()].map((i) => String.fromCharCode(i)).join('') + '\x7f',
+  '[:digit:]': '0123456789',
+  '[:lower:]': 'abcdefghijklmnopqrstuvwxyz',
+  '[:print:]': [...Array(95).keys()].map((i) => String.fromCharCode(i + 32)).join(''),
+  '[:punct:]': '!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~',
+  '[:space:]': ' \t\n\r\v\f',
+  '[:upper:]': 'ABCDEFGHIJKLMNOPQRSTUVWXYZ',
+  '[:xdigit:]': '0123456789abcdefABCDEF'
+}
+
+/** @param {string} s */
+function trExpandClasses(s) {
+  let out = s
+  for (const [name, chars] of Object.entries(TR_CLASS)) {
+    out = out.split(name).join(chars)
+  }
+  return out
+}
+
 async function run(ctx, argv) {
   let del = false
   const sets = []
@@ -12,14 +36,14 @@ async function run(ctx, argv) {
   }
   const s = bareStdin(ctx)
   if (del) {
-    const kill = new Set(sets[0].split(''))
+    const kill = new Set(trExpandClasses(sets[0]).split(''))
     let o = ''
     for (const ch of s) if (!kill.has(ch)) o += ch
     ctx.console.log(o)
     return
   }
-  const from = sets[0]
-  const to = sets[1]
+  const from = trExpandClasses(sets[0])
+  const to = trExpandClasses(sets[1])
   const map = Object.create(null)
   const n = Math.max(from.length, to.length)
   for (let i = 0; i < n; i++) {