import re
import string
from App.Dialogs import MessageDialog

# Convert URL to a set of letters, numbers and underscores 
# (non-symbol characters) for use as a JavaScript variable name 
# based on quote() from urllib.pl

def jsSafe(s,REQUEST):
    
    # shorten
    s = string.replace(s,REQUEST.SERVER_URL+'/','')
  
    # characters that should not be converted
    safe = string.letters + string.digits + '_'
    
    # quote the string
    res = list(s)
    for i in range(len(res)):
      c = res[i]
      if c not in safe:
          res[i] = '%%%02x' % ord(c)
    s_quoted = string.joinfields(res, '')

    # quote percent signs (%)
    s_quoted = string.replace(s_quoted,'%','_')
    return s_quoted


# Replace blocks of spaces with 1 space, kill line breaks

def cleanUp(renderCode):

  # kill <!-- html comments -->
  comments = re.compile(r"<!--.*?->")
  renderCode = comments.sub('', renderCode)

  # split by whitespace blocks
  s = string.split(renderCode)

  # join by 1 whitespace
  s = string.join(s,' ')

  # kill newlines
  s = string.replace(s,'\n','')

  return s


# Eliminate blank lines and //comments 

def jsClean(JavaScriptCode):

  # vars
  clean = []
  comments = re.compile(r"^//")
  js = string.split(JavaScriptCode,'\n')

  # study each line
  for line in js:
    
    # clean
    line = string.strip(line)
    
    # if it is a blank line or a //comment
    if line is '' or comments.search(line):
    
      # eliminate
      pass
    
    # otherwise
    else:
  
      # indent
      line = "  " + line
      
      # save
      clean.append(line)

  return string.join(clean,'\n')


def activePath (ActivePaths, REQUEST):
  
  status = None

  SearchPath = REQUEST.SCRIPT_NAME + REQUEST.PATH_INFO
 
  for path in ActivePaths:
    path = string.strip(path)
    if path and string.find(SearchPath, path) > -1: 
      status = 1
        
  return status