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Uses idlelib.searchengine.SearchEngine for search capability.
Defines various replace related functions like replace, replace all,
and replace+find.
� N)� StringVar�TclError)�SearchDialogBase)� searchenginec C s< | � � }t�|�}t|d�s(t||�|_|j}|�| � dS )z�Create or reuse a singleton ReplaceDialog instance.
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d#dd�Zd$dd�Zdd� Zd d � Zd%d d �Z� ZS )&r z3Dialog for finding and replacing a pattern in text.zReplace Dialog�Replacec s t � �||� t|�| _dS )a� Create search dialog for finding and replacing text.
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replvar: StringVar containing 'Replace with:' value.
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ok: Boolean used in searchengine.search_text to indicate
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do_replace)r r$ r r r r a s zReplaceDialog.replace_itc C s" | � | j�r | �� r | � d� dS )z�Handle the Replace+Find button as the default command.
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Search text for occurrences of the Find value and replace
each of them. The 'wrap around' value controls the start
point for searching. If wrap isn't set, then the searching
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