ISBN regex in VOR schema is now patched because it can't be compiled …

…in Go.

go.mod

@@ -11,6 +11,7 @@ require (
 require (
 	github.com/tidwall/match v1.1.1 // indirect
 	github.com/tidwall/pretty v1.2.1 // indirect
+	github.com/tidwall/sjson v1.2.5 // indirect
 	go.uber.org/atomic v1.7.0 // indirect
 	go.uber.org/multierr v1.9.0 // indirect
 )

go.sum

@@ -11,13 +11,16 @@ github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.8.1 h1:w7B6lhMri9wdJUVmEZPGGhZzrYTPvgJArz7wNPgYKsk=
 github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
+github.com/tidwall/gjson v1.14.2/go.mod h1:/wbyibRr2FHMks5tjHJ5F8dMZh3AcwJEMf5vlfC0lxk=
 github.com/tidwall/gjson v1.15.0 h1:5n/pM+v3r5ujuNl4YLZLsQ+UE5jlkLVm7jMzT5Mpolw=
 github.com/tidwall/gjson v1.15.0/go.mod h1:/wbyibRr2FHMks5tjHJ5F8dMZh3AcwJEMf5vlfC0lxk=
 github.com/tidwall/match v1.1.1 h1:+Ho715JplO36QYgwN9PGYNhgZvoUSc9X2c80KVTi+GA=
 github.com/tidwall/match v1.1.1/go.mod h1:eRSPERbgtNPcGhD8UCthc6PmLEQXEWd3PRB5JTxsfmM=
 github.com/tidwall/pretty v1.2.0/go.mod h1:ITEVvHYasfjBbM0u2Pg8T2nJnzm8xPwvNhhsoaGGjNU=
 github.com/tidwall/pretty v1.2.1 h1:qjsOFOWWQl+N3RsoF5/ssm1pHmJJwhjlSbZ51I6wMl4=
 github.com/tidwall/pretty v1.2.1/go.mod h1:ITEVvHYasfjBbM0u2Pg8T2nJnzm8xPwvNhhsoaGGjNU=
+github.com/tidwall/sjson v1.2.5 h1:kLy8mja+1c9jlljvWTlSazM7cKDRfJuR/bOJhcY5NcY=
+github.com/tidwall/sjson v1.2.5/go.mod h1:Fvgq9kS/6ociJEDnK0Fk1cpYF4FIW6ZF7LAe+6jwd28=
 go.uber.org/atomic v1.7.0 h1:ADUqmZGgLDDfbSL9ZmPxKTybcoEYHgpYfELNoN+7hsw=
 go.uber.org/atomic v1.7.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
 go.uber.org/multierr v1.9.0 h1:7fIwc/ZtS0q++VgcfqFDxSBZVv/Xo49/SYnDFupUwlI=

main.go

@@ -4,6 +4,7 @@ package main
 // - https://dev.to/vearutop/benchmarking-correctness-and-performance-of-go-json-schema-validators-3247
 
 import (
+	"bytes"
 	"encoding/json"
 	"errors"
 	"fmt"
@@ -20,12 +21,9 @@ import (
 
 	"github.com/santhosh-tekuri/jsonschema/v5"
 	"github.com/tidwall/gjson"
+	"github.com/tidwall/sjson"
 )
 
-// todo:
-// https://json-schema.org/understanding-json-schema/reference/regular_expressions.html
-// https://github.com/santhosh-tekuri/jsonschema/issues/113
-
 func panic_on_err(err error, action string) {
 	if err != nil {
 		panic(fmt.Sprintf("failed with '%s' while '%s'", err.Error(), action))
@@ -39,20 +37,31 @@ type Schema struct {
 }
 
 func configure_validator(schema_root string) map[string]Schema {
-	loader := jsonschema.Loaders["file"]
-	c := jsonschema.NewCompiler()
-	c.Draft = jsonschema.Draft4
+	compiler := jsonschema.NewCompiler()
+	compiler.Draft = jsonschema.Draft4
 	schema_file_list := map[string]string{
 		"POA": path.Join(schema_root, "/dist/model/article-poa.v3.json"),
 		"VOR": path.Join(schema_root, "/dist/model/article-vor.v7.json"),
 	}
+
 	schema_map := map[string]Schema{}
 	for label, path := range schema_file_list {
-		rdr, err := loader(path)
-		panic_on_err(err, fmt.Sprintf("loading '%s' schema file: %s", label, path))
-		err = c.AddResource(label, rdr)
+		file_bytes, err := os.ReadFile(path)
+		panic_on_err(err, fmt.Sprintf("reading '%s' schema file: %s", label, path))
+		if label == "VOR" {
+			// patch ISBN regex as it can't be compiled in Go.
+			// todo: this needs a fix upstream.
+			// https://json-schema.org/understanding-json-schema/reference/regular_expressions.html
+			// https://github.com/santhosh-tekuri/jsonschema/issues/113
+			find := "allOf.2.properties.references.items.definitions.book.properties.isbn.pattern"
+			replace := "^.+$"
+			file_bytes, err = sjson.SetBytes(file_bytes, find, replace)
+			panic_on_err(err, fmt.Sprintf("patching ISBN in '%s' schema: %s", label, path))
+		}
+
+		err = compiler.AddResource(label, bytes.NewReader(file_bytes))
 		panic_on_err(err, "adding schema to compiler: "+label)
-		schema, err := c.Compile(label)
+		schema, err := compiler.Compile(label)
 		panic_on_err(err, "compiling schema: "+label)
 		schema_map[label] = Schema{
 			Label:  label,
@@ -63,10 +72,6 @@ func configure_validator(schema_root string) map[string]Schema {
 	return schema_map
 }
 
-func init() {
-
-}
-
 // ---
 
 func read_article_data(article_json_path string) (string, interface{}) {