#!/usr/bin/env python3
# -*- coding: utf-8 -*-

from re import compile as re_compile, Pattern as REPattern, IGNORECASE as RE_IGNORE_CASE

class RE:

    KEY:REPattern = re_compile(r'^[a-z_][a-z0-9_]*$', RE_IGNORE_CASE)
    STRING_VARIABLE:REPattern = re_compile(r'\{([a-z_][a-z0-9_]*)\}', RE_IGNORE_CASE)
    EXCEPTION:REPattern = re_compile(r'^\s*File "([^"]+)", line ([0-9]+), in ([^\n]+)(.*|[\r\n]*)*$')
    NEW_LINE:REPattern = re_compile(r'\r\n|[\r\n]')
    TO_SNAKE:REPattern = re_compile(r'[^a-zA-Z0-9]*([A-Z][A-Z0-9]*)|[^a-z0-9]+')
    HTTP_REQUEST:REPattern = re_compile(r'^([^\s]+)\s([^\s\?\#]+)(?:\?([^#]+))?(?:\#[^\s]+)?\s([^\/]+)\/([0-9\.]+)$')
    HEADER_LINE:REPattern = re_compile(r'^([^\:]+)\:(.+)$')
    HTTP_BLOCKS:REPattern = re_compile(r'((?:(?!(?:(?:\r\n){2}|\n{2}|\r{2}))(?:.|[\r\n]+))+)(?:(?:(?:\r\n){2}|\n{2}|\r{2})((?:.+|[\r\n]+)*))?')
    LAST_DIRECTORY:REPattern = re_compile(r'^(.*)[\/\\\\][^\/\\\\]*[\/\\\\]?$')
    SLASHES:REPattern = re_compile(r'[\\\/]+')
    TO_REGULAR_EXPRESSION:REPattern = re_compile(r'[\(\)\{\}\/\\\.\-\+\*\^\$\?\|\!\<\>\r\n\t]')
    ROUTE_KEY:REPattern = re_compile(r'\\\{([a-z_][a-z0-9_]*)\\\}', RE_IGNORE_CASE)
    ODBC_STRING_VARIABLE:REPattern = re_compile(r'\{([a-z_][a-z0-9_]*)\}|@([a-z0-9_]+)', RE_IGNORE_CASE)
    ROUTE:REPattern = re_compile(r'^(?:([^\:]+)?\:)([^\s]+)\s+(?:([^\@\s]+)\@([^\s]+)|([^\s]+))(?:\s*(.+))?$', RE_IGNORE_CASE)