dynamic map

dynamic.go

package my_package

import (                                                                                                                                                                  
    "fmt" 
    "errors"
    "regexp"                                                                                                                                                              
    "strings"                                                                                                                                                             
)                                                                                                                                                                         
                                                                                                                                                                          
type dynamicSet map[string]regexp.Regexp                                                                                                                                  
                                                                                                                                                                          
func (d dynamicSet) Set(name string, regex string) error {                                                                                                                
    if !strings.HasPrefix(name, ":") {                                                                                                                                    
        return errors.New("Dynamic route name must start with a colon ':'")                                                                                                       
    }                                                                                                                                                                     
                                                                                                                                                                          
    // fix regex                                                                                                                                                          
    if !strings.HasPrefix(regex, "^") {                                                                                                                                   
        regex = fmt.Sprintf("^%s$", regex)                                                                                                                                
    }                                                                                                                                                                     
                                                                                                                                                                          
    r := regexp.MustCompile(regex)                                                                                                                                        
    d[name] = *r                                                                                                                                                          
    return nil                                                                                                                                                            
}