Added support for references with brackets #112

Brackets in names are now supported. For example `’#/components/schemas/CoffeeCup[Black]’

Signed-off-by: Dave Shanley <dave@quobix.com>

index/extract_refs_test.go

@@ -4,14 +4,14 @@
 package index
 
 import (
-    "github.com/stretchr/testify/assert"
-    "gopkg.in/yaml.v3"
-    "testing"
+	"github.com/stretchr/testify/assert"
+	"gopkg.in/yaml.v3"
+	"testing"
 )
 
 func TestSpecIndex_ExtractRefs_CheckDescriptionNotMap(t *testing.T) {
 
-    yml := `openapi: 3.1.0
+	yml := `openapi: 3.1.0
 info:
   description: This is a description
 paths:
@@ -28,17 +28,17 @@ paths:
                   description:
                    type: string
    `
-    var rootNode yaml.Node
-    _ = yaml.Unmarshal([]byte(yml), &rootNode)
-    c := CreateOpenAPIIndexConfig()
-    idx := NewSpecIndexWithConfig(&rootNode, c)
-    assert.Len(t, idx.allDescriptions, 2)
-    assert.Equal(t, 2, idx.descriptionCount)
+	var rootNode yaml.Node
+	_ = yaml.Unmarshal([]byte(yml), &rootNode)
+	c := CreateOpenAPIIndexConfig()
+	idx := NewSpecIndexWithConfig(&rootNode, c)
+	assert.Len(t, idx.allDescriptions, 2)
+	assert.Equal(t, 2, idx.descriptionCount)
 }
 
 func TestSpecIndex_ExtractRefs_CheckPropertiesForInlineSchema(t *testing.T) {
 
-    yml := `openapi: 3.1.0
+	yml := `openapi: 3.1.0
 servers:
   - url: http://localhost:8080
 paths:
@@ -56,10 +56,33 @@ paths:
                     type: array
                     items: true
    `
-    var rootNode yaml.Node
-    _ = yaml.Unmarshal([]byte(yml), &rootNode)
-    c := CreateOpenAPIIndexConfig()
-    idx := NewSpecIndexWithConfig(&rootNode, c)
-    assert.Len(t, idx.allInlineSchemaDefinitions, 2)
-    assert.Len(t, idx.allInlineSchemaObjectDefinitions, 1)
-}
+	var rootNode yaml.Node
+	_ = yaml.Unmarshal([]byte(yml), &rootNode)
+	c := CreateOpenAPIIndexConfig()
+	idx := NewSpecIndexWithConfig(&rootNode, c)
+	assert.Len(t, idx.allInlineSchemaDefinitions, 2)
+	assert.Len(t, idx.allInlineSchemaObjectDefinitions, 1)
+}
+
+// https://github.com/pb33f/libopenapi/issues/112
+func TestSpecIndex_ExtractRefs_CheckReferencesWithBracketsInName(t *testing.T) {
+
+	yml := `openapi: 3.0.0
+components:
+  schemas:
+    Cake[Burger]:
+      type: string
+      description: A cakey burger
+    Happy:
+      type: object
+      properties:
+        mingo:
+          $ref: '#/components/schemas/Cake[Burger]'
+   `
+	var rootNode yaml.Node
+	_ = yaml.Unmarshal([]byte(yml), &rootNode)
+	c := CreateOpenAPIIndexConfig()
+	idx := NewSpecIndexWithConfig(&rootNode, c)
+	assert.Len(t, idx.allMappedRefs, 1)
+	assert.Equal(t, "Cake[Burger]", idx.allMappedRefs["#/components/schemas/Cake[Burger]"].Name)
+}

utils/utils.go

@@ -514,6 +514,9 @@ func IsHttpVerb(verb string) bool {
 	return false
 }
 
+// define bracket name expression
+var bracketNameExp = regexp.MustCompile("^(\\w+)\\[(\\w+)\\]$")
+
 func ConvertComponentIdIntoFriendlyPathSearch(id string) (string, string) {
 	segs := strings.Split(id, "/")
 	name, _ := url.QueryUnescape(strings.ReplaceAll(segs[len(segs)-1], "~1", "/"))
@@ -521,8 +524,8 @@ func ConvertComponentIdIntoFriendlyPathSearch(id string) (string, string) {
 
 	// check for strange spaces, chars and if found, wrap them up, clean them and create a new cleaned path.
 	for i := range segs {
-		reg, _ := regexp.MatchString("[%=;~.]", segs[i])
-		if reg {
+		pathCharExp, _ := regexp.MatchString("[%=;~.]", segs[i])
+		if pathCharExp {
 			segs[i], _ = url.QueryUnescape(strings.ReplaceAll(segs[i], "~1", "/"))
 			segs[i] = fmt.Sprintf("['%s']", segs[i])
 			if len(cleaned) > 0 {
@@ -530,6 +533,19 @@ func ConvertComponentIdIntoFriendlyPathSearch(id string) (string, string) {
 				continue
 			}
 		} else {
+
+			// check for brackets in the name, and if found, rewire the path to encapsulate them
+			// correctly. https://github.com/pb33f/libopenapi/issues/112
+			brackets := bracketNameExp.FindStringSubmatch(segs[i])
+
+			if len(brackets) > 0 {
+				segs[i] = bracketNameExp.ReplaceAllString(segs[i], "['$1[$2]']")
+				if len(cleaned) > 0 {
+					cleaned[len(cleaned)-1] = fmt.Sprintf("%s%s", segs[i-1], segs[i])
+					continue
+				}
+			}
+
 			intVal, err := strconv.ParseInt(segs[i], 10, 32)
 			if err == nil && intVal <= 99 {
 				segs[i] = fmt.Sprintf("[%d]", intVal)