planning

node_modules/ajv/lib/vocabularies/validation/pattern.ts

@@ -0,0 +1,28 @@
+import type {CodeKeywordDefinition, ErrorObject, KeywordErrorDefinition} from "../../types"
+import type {KeywordCxt} from "../../compile/validate"
+import {usePattern} from "../code"
+import {_, str} from "../../compile/codegen"
+
+export type PatternError = ErrorObject<"pattern", {pattern: string}, string | {$data: string}>
+
+const error: KeywordErrorDefinition = {
+  message: ({schemaCode}) => str`must match pattern "${schemaCode}"`,
+  params: ({schemaCode}) => _`{pattern: ${schemaCode}}`,
+}
+
+const def: CodeKeywordDefinition = {
+  keyword: "pattern",
+  type: "string",
+  schemaType: "string",
+  $data: true,
+  error,
+  code(cxt: KeywordCxt) {
+    const {data, $data, schema, schemaCode, it} = cxt
+    // TODO regexp should be wrapped in try/catchs
+    const u = it.opts.unicodeRegExp ? "u" : ""
+    const regExp = $data ? _`(new RegExp(${schemaCode}, ${u}))` : usePattern(cxt, schema)
+    cxt.fail$data(_`!${regExp}.test(${data})`)
+  },
+}
+
+export default def