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#
#
# Nimrod's Runtime Library
# (c) Copyright 2014 Dominik Picheta
#
# See the file "copying.txt", included in this
# distribution, for details about the copyright.
#
## Parses & constructs URLs.
##
## **Note**: This module will be deprecated in the future and merged into a
## new ``url`` module.
import strutils
type
TUrl* = tuple[ ## represents a *Uniform Resource Locator* (URL)
## any optional component is "" if it does not exist
scheme, username, password,
hostname, port, path, query, anchor: string]
proc parseUrl*(url: string): TUrl =
var i = 0
var scheme, username, password: string = ""
var hostname, port, path, query, anchor: string = ""
var temp = ""
if url[i] != '/': # url isn't a relative path
while True:
# Scheme
if url[i] == ':':
if url[i+1] == '/' and url[i+2] == '/':
scheme = temp
temp.setlen(0)
inc(i, 3) # Skip the //
# Authority(username, password)
if url[i] == '@':
username = temp
let colon = username.find(':')
if colon >= 0:
password = username.substr(colon+1)
username = username.substr(0, colon-1)
temp.setlen(0)
inc(i) #Skip the @
# hostname(subdomain, domain, port)
if url[i] == '/' or url[i] == '\0':
hostname = temp
let colon = hostname.find(':')
if colon >= 0:
port = hostname.substr(colon+1)
hostname = hostname.substr(0, colon-1)
temp.setlen(0)
break
temp.add(url[i])
inc(i)
if url[i] == '/': inc(i) # Skip the '/'
# Path
while True:
if url[i] == '?':
path = temp
temp.setlen(0)
if url[i] == '#':
if temp[0] == '?':
query = temp
else:
path = temp
temp.setlen(0)
if url[i] == '\0':
if temp[0] == '?':
query = temp
elif temp[0] == '#':
anchor = temp
else:
path = temp
break
temp.add(url[i])
inc(i)
return (scheme, username, password, hostname, port, path, query, anchor)
proc `$`*(u: TUrl): string =
## turns the URL `u` into its string representation.
result = ""
if u.scheme.len > 0:
result.add(u.scheme)
result.add("://")
if u.username.len > 0:
result.add(u.username)
if u.password.len > 0:
result.add(":")
result.add(u.password)
result.add("@")
result.add(u.hostname)
if u.port.len > 0:
result.add(":")
result.add(u.port)
if u.path.len > 0:
result.add("/")
result.add(u.path)
result.add(u.query)
result.add(u.anchor)
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