part of routing module for Go language

getParams.go

package main

import "fmt"
import "strings"

var routes = []string{
  "/user/:id/friends/:friendsId",
  "/scrapbook/:scrapbookid/scrap/:scrapid",
  "/"}

func getParams(url string) map[string]string {
  for idx,_:=range routes {
    format := routes[idx]
    urlToken := strings.Split(url, "/")
    formatToken := strings.Split(format, "/")

    /* match pattern */
    if len(urlToken)==len(formatToken) && len(formatToken)>0 {
      params := make(map[string]string)
      match := true
      for i,v:=range formatToken {
        if len(v)>0 && v[0:1] == ":" {
          params[v[1:]]=urlToken[i]
        } else if v!=urlToken[i] {
          match =false
        }
      }
      if match {
        return params
      }
    }
  }
  return nil  
}

func main() {
  for i,v:=range getParams("/scrapbook/1ABCDE/scrap/401") {
    fmt.Printf("[%s:%s]",i,v)
  }
  fmt.Println("")
  for i,v:=range getParams("/user/spectrum/friends/cid") {
    fmt.Printf("[%s:%s]",i,v)
  }  
  fmt.Println("")
  for i,v:=range getParams("/root") {
    fmt.Printf("[%s:%s]",i,v)
  }  
  fmt.Println("")
}