Initial

resources/app/node_modules/abstract-level/lib/range-options.js

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+'use strict'
+
+const ModuleError = require('module-error')
+const hasOwnProperty = Object.prototype.hasOwnProperty
+const rangeOptions = new Set(['lt', 'lte', 'gt', 'gte'])
+
+module.exports = function (options, keyEncoding) {
+  const result = {}
+
+  for (const k in options) {
+    if (!hasOwnProperty.call(options, k)) continue
+    if (k === 'keyEncoding' || k === 'valueEncoding') continue
+
+    if (k === 'start' || k === 'end') {
+      throw new ModuleError(`The legacy range option '${k}' has been removed`, {
+        code: 'LEVEL_LEGACY'
+      })
+    } else if (k === 'encoding') {
+      // To help migrating to abstract-level
+      throw new ModuleError("The levelup-style 'encoding' alias has been removed, use 'valueEncoding' instead", {
+        code: 'LEVEL_LEGACY'
+      })
+    }
+
+    if (rangeOptions.has(k)) {
+      // Note that we don't reject nullish and empty options here. While
+      // those types are invalid as keys, they are valid as range options.
+      result[k] = keyEncoding.encode(options[k])
+    } else {
+      result[k] = options[k]
+    }
+  }
+
+  result.reverse = !!result.reverse
+  result.limit = Number.isInteger(result.limit) && result.limit >= 0 ? result.limit : -1
+
+  return result
+}