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Headers.genpair()   A

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Total Lines 18

Duplication

Lines 0
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c 1
b 0
f 0
dl 0
loc 18
rs 9.4285
cc 2
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import re

            


            
                                                                                                            
                            
            
                                    
            
            

                
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from werkzeug.http import dump_options_header

            


            
                                                                                                            
                            
            
                                    
            
            

                
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from werkzeug.datastructures import Headers as BaseHeaders

            


            
                                                                                                            
                            
            
                                    
            
            

                
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class Headers(BaseHeaders):

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    '''

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    A wrapper around :class:`werkzeug.datastructures.Headers`, allowing

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    to specify headers with options.

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    '''

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    snake_replace = staticmethod(re.compile(r'(^|-)[a-z]').sub)

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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    @classmethod

            


            
                                                                        
                            
            
                                    
            
            

                
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    def genpair(cls, key, optkey, values):

            


            
                                                                        
                            
            
                                    
            
            

                
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        '''

            


            
                                                                        
                            
            
                                    
            
            

                
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        Extract value and options from values dict based on given key and

            


            
                                                                        
                            
            
                                    
            
            

                
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        options-key.

            


            
                                                                        
                            
            
                                    
            
            

                
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        :param key: value key

            


            
                                                                        
                            
            
                                    
            
            

                
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        :type key: str

            


            
                                                                        
                            
            
                                    
            
            

                
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        :param optkey: options key

            


            
                                                                        
                            
            
                                    
            
            

                
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        :type optkey: str

            


            
                                                                        
                            
            
                                    
            
            

                
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        :param values: value dictionary

            


            
                                                                        
                            
            
                                    
            
            

                
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        :type values: dict

            


            
                                                                        
                            
            
                                    
            
            

                
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        :returns: tuple of (key, value)

            


            
                                                                        
                            
            
                                    
            
            

                
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        :rtype: tuple of str

            


            
                                                                        
                            
            
                                    
            
            

                
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        '''

            


            
                                                                        
                            
            
                                    
            
            

                
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        return (

            


            
                                                                        
                            
            
                                    
            
            

                
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            cls.snake_replace(lambda x: x[0].upper(), key.replace('_', '-')),

            


            
                                                                        
                            
            
                                    
            
            

                
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            dump_options_header(values[key], values.get(optkey, {})),

            


            
                                                                                                            
                            
            
                                    
            
            

                
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            )

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    def __init__(self, options_suffix='_options', **kwargs):

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        items = [

            


            
                                                                                                            
                            
            
                                    
            
            

                
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            self.genpair(key, '%s_%s' % (key, options_suffix), kwargs)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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            for key in kwargs

            


            
                                                                                                            
                            
            
                                    
            
            

                
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            if not key.endswith(options_suffix)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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            ]

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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        return super(Headers, self).__init__(items)

            


            
                                                        
            
                                    
            
            

                
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