update to version 8.4.1 ❤️ https://github.com/kataras/iris/blob/master/HISTORY.md#th-07-september-2017--v841

Former-commit-id: 9e5f0a08049b83605aa847b8f51fb856427354a6

core/router/macro/interpreter/ast/ast.go

@@ -18,13 +18,18 @@ const (
 	// Declaration: /mypath/{myparam:string} or /mypath{myparam}
 	ParamTypeString
 	// ParamTypeInt is the integer, a number type.
-	// Allows only numbers (0-9)
+	// Allows only possitive numbers (0-9)
 	// Declaration: /mypath/{myparam:int}
 	ParamTypeInt
 	// ParamTypeLong is the integer, a number type.
-	// Allows only numbers (0-9)
+	// Allows only possitive numbers (0-9)
 	// Declaration: /mypath/{myparam:long}
 	ParamTypeLong
+	// ParamTypeBoolean is the bool type.
+	// Allows only "1" or "t" or "T" or "TRUE" or "true" or "True"
+	// or "0" or "f" or "F" or "FALSE" or "false" or "False".
+	// Declaration: /mypath/{myparam:boolean}
+	ParamTypeBoolean
 	// ParamTypeAlphabetical is the  alphabetical/letter type type.
 	// Allows letters only (upper or lowercase)
 	// Declaration:  /mypath/{myparam:alphabetical}
@@ -49,6 +54,7 @@ var paramTypes = map[string]ParamType{
 	"string":       ParamTypeString,
 	"int":          ParamTypeInt,
 	"long":         ParamTypeLong,
+	"boolean":      ParamTypeBoolean,
 	"alphabetical": ParamTypeAlphabetical,
 	"file":         ParamTypeFile,
 	"path":         ParamTypePath,

core/router/macro/interpreter/parser/parser_test.go

@@ -131,6 +131,13 @@ func TestParseParam(t *testing.T) {
 				Type:      ast.ParamTypeLong,
 				ErrorCode: 404,
 			}}, // 8
+		{true,
+			ast.ParamStatement{
+				Src:       "{has:boolean else 404}",
+				Name:      "has",
+				Type:      ast.ParamTypeBoolean,
+				ErrorCode: 404,
+			}}, // 9
 
 	}
 

core/router/macro/macro.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"reflect"
 	"regexp"
+	"strconv"
 	"unicode"
 
 	"github.com/kataras/iris/core/router/macro/interpreter/ast"
@@ -208,17 +209,23 @@ func (m *Macro) getFunc(funcName string) ParamEvaluatorBuilder {
 
 // Map contains the default macros mapped to their types.
 // This is the manager which is used by the caller to register custom
-// parameter functions per param-type (String, Int, Long, Alphabetical, File, Path).
+// parameter functions per param-type (String, Int, Long, Boolean, Alphabetical, File, Path).
 type Map struct {
 	// string type
 	// anything
 	String *Macro
-	// int type
-	// only numbers (0-9)
+	// uint type
+	// only possitive numbers (+0-9)
+	// it could be uint/uint32 but we keep int for simplicity
 	Int *Macro
 	// long an int64 type
-	// only numbers (0-9)
+	// only possitive numbers (+0-9)
+	// it could be uint64 but we keep int64 for simplicity
 	Long *Macro
+	// boolean as bool type
+	// a string which is "1" or "t" or "T" or "TRUE" or "true" or "True"
+	// or "0" or "f" or "F" or "FALSE" or "false" or "False".
+	Boolean *Macro
 	// alphabetical/letter type
 	// letters only (upper or lowercase)
 	Alphabetical *Macro
@@ -242,9 +249,15 @@ type Map struct {
 func NewMap() *Map {
 	return &Map{
 		// it allows everything, so no need for a regexp here.
-		String:       newMacro(func(string) bool { return true }),
-		Int:          newMacro(MustNewEvaluatorFromRegexp("^[0-9]+$")),
-		Long:         newMacro(MustNewEvaluatorFromRegexp("^[0-9]+$")),
+		String: newMacro(func(string) bool { return true }),
+		Int:    newMacro(MustNewEvaluatorFromRegexp("^[0-9]+$")),
+		Long:   newMacro(MustNewEvaluatorFromRegexp("^[0-9]+$")),
+		Boolean: newMacro(func(paramValue string) bool {
+			// a simple if statement is faster than regex ^(true|false|True|False|t|0|f|FALSE|TRUE)$
+			// in this case.
+			_, err := strconv.ParseBool(paramValue)
+			return err == nil
+		}),
 		Alphabetical: newMacro(MustNewEvaluatorFromRegexp("^[a-zA-Z ]+$")),
 		File:         newMacro(MustNewEvaluatorFromRegexp("^[a-zA-Z0-9_.-]*$")),
 		// it allows everything, we have String and Path as different
@@ -265,6 +278,8 @@ func (m *Map) Lookup(typ ast.ParamType) *Macro {
 		return m.Int
 	case ast.ParamTypeLong:
 		return m.Long
+	case ast.ParamTypeBoolean:
+		return m.Boolean
 	case ast.ParamTypeAlphabetical:
 		return m.Alphabetical
 	case ast.ParamTypeFile: