B
    ^ Çc$  ã               @   sf   d Z ddlmZ ddlmZ ddddœZdZG d	d
„ d
ƒZe ¡  e	dkrbddl
mZ eddd dS )zàParenMatch -- for parenthesis matching.

When you hit a right paren, the cursor should move briefly to the left
paren.  Paren here is used generically; the matching applies to
parentheses, square brackets, and curly braces.
é    )ÚHyperParser)ÚidleConfú(ú[Ú{)ú)ú]Ú}éd   c               @   sœ   e Zd ZdZdZdZdd„ Zedd„ ƒZdd	„ Z	d
d„ Z
dd„ Zdd„ Zdd„ Zd"dd„Zdd„ Zdd„ Zdd„ Zdd„ ZeeeedœZdd„ Zd d!„ ZdS )#Ú
ParenMatcha'  Highlight matching openers and closers, (), [], and {}.

    There are three supported styles of paren matching.  When a right
    paren (opener) is typed:

    opener -- highlight the matching left paren (closer);
    parens -- highlight the left and right parens (opener and closer);
    expression -- highlight the entire expression from opener to closer.
    (For back compatibility, 'default' is a synonym for 'opener').

    Flash-delay is the maximum milliseconds the highlighting remains.
    Any cursor movement (key press or click) before that removes the
    highlight.  If flash-delay is 0, there is no maximum.

    TODO:
    - Augment bell() with mismatch warning in status window.
    - Highlight when cursor is moved to the right of a closer.
      This might be too expensive to check.
    z<<parenmatch-check-restore>>)z
<KeyPress>z<ButtonPress>z<Key-Return>z<Key-BackSpace>c             C   s0   || _ |j| _|j | j| j¡ d| _d| _d S )Nr   )ÚeditwinÚtextZbindÚRESTORE_VIRTUAL_EVENT_NAMEÚrestore_eventÚcounterÚis_restore_active)Úselfr   © r   ú#lib/python3.7/idlelib/parenmatch.pyÚ__init__(   s    
zParenMatch.__init__c             C   sV   t jddddd| _t jdddddd	| _t jddd
ddd	| _t  t  ¡ d¡| _d S )NÚ
extensionsr   ZstyleÚopener)Údefaultzflash-delayÚintiô  )Útyper   ÚbellÚboolé   Zhilite)r   Z	GetOptionÚSTYLEÚFLASH_DELAYÚBELLZGetHighlightZCurrentThemeÚHILITE_CONFIG)Úclsr   r   r   Úreload3   s    
zParenMatch.reloadc             C   s0   | j s,x| jD ]}| j | j|¡ qW d| _ dS )z5Activate mechanism to restore text from highlighting.TN)r   ÚRESTORE_SEQUENCESr   Z	event_addr   )r   Úseqr   r   r   Úactivate_restore>   s    zParenMatch.activate_restorec             C   s0   | j r,x| jD ]}| j | j|¡ qW d| _ dS )zRemove restore event bindings.FN)r   r$   r   Zevent_deleter   )r   r%   r   r   r   Údeactivate_restoreE   s    zParenMatch.deactivate_restorec             C   s   t | jdƒ ¡ }|  |¡ dS )zAHandle editor 'show surrounding parens' event (menu or shortcut).ÚinsertÚbreak)r   r   Úget_surrounding_bracketsÚfinish_paren_event)r   ÚeventÚindicesr   r   r   Úflash_paren_eventL   s    
zParenMatch.flash_paren_eventc             C   sN   | j  d¡}|tkrdS t| jdƒ}| ¡ s0dS | t| d¡}|  |¡ dS )zHandle user input of closer.z	insert-1cNT)r   ÚgetÚ_openersr   r   Z
is_in_coder*   r+   )r   r,   ZcloserZhpr-   r   r   r   Úparen_closed_eventS   s    
zParenMatch.paren_closed_eventc             C   sT   |d kr| j r| j ¡  d S |  ¡  | j | j| j¡| |ƒ | jrH| j	n| j
ƒ  d S )N)r    r   r   r&   Útagfuncsr/   r   Úcreate_tag_expressionr   Úset_timeout_lastÚset_timeout_none)r   r-   r   r   r   r+   `   s    
zParenMatch.finish_paren_eventNc             C   s&   | j  d¡ |  ¡  |  jd7  _dS )zRemove effect of doing match.Úparenr   N)r   Z
tag_deleter'   r   )r   r,   r   r   r   r   k   s    zParenMatch.restore_eventc             C   s   || j kr|  ¡  d S )N)r   r   )r   Ztimer_countr   r   r   Úhandle_restore_timerq   s    
zParenMatch.handle_restore_timerc             C   s&   | j  d|d ¡ | j  d| j¡ dS )z'Highlight the single paren that matchesr6   r   N)r   Útag_addÚ
tag_configr!   )r   r-   r   r   r   Úcreate_tag_openerx   s    zParenMatch.create_tag_openerc             C   sb   | j  |d ¡dkr"|d d }n|d }| j  d|d |d d |d |¡ | j  d| j¡ dS )z#Highlight the left and right parensr   )r   r   r	   z+1cr6   r   z-1cN)r   r/   r8   r9   r!   )r   r-   Ú
rightindexr   r   r   Úcreate_tag_parens}   s
    $zParenMatch.create_tag_parensc             C   sR   | j  |d ¡dkr"|d d }n|d }| j  d|d |¡ | j  d| j¡ dS )zHighlight the entire expressionr   )r   r   r	   z+1cr6   r   N)r   r/   r8   r9   r!   )r   r-   r;   r   r   r   r3   †   s
    z ParenMatch.create_tag_expression)r   r   ZparensZ
expressionc             C   s>   |  j d7  _ | | j | j d¡fdd„}| jj t||¡ dS )zSHighlight will remain until user input turns it off
        or the insert has movedr   r(   c             S   s2   ||j  d¡kr| |¡ n|jj t| | ¡ d S )Nr(   )r   Úindexr7   r   Ú
text_frameÚafterÚCHECK_DELAY)Úcallmer   Úcr=   r   r   r   rA       s    z+ParenMatch.set_timeout_none.<locals>.callmeN)r   r   r=   r   r>   r?   r@   )r   rA   r   r   r   r5   ™   s    zParenMatch.set_timeout_nonec             C   s0   |  j d7  _ | jj | j| | j fdd„¡ dS )zFThe last highlight created will be removed after FLASH_DELAY millisecsr   c             S   s
   |   |¡S )N)r7   )r   rB   r   r   r   Ú<lambda>¯   ó    z-ParenMatch.set_timeout_last.<locals>.<lambda>N)r   r   r>   r?   r   )r   r   r   r   r4   ¨   s    zParenMatch.set_timeout_last)N)Ú__name__Ú
__module__Ú__qualname__Ú__doc__r   r$   r   Úclassmethodr#   r&   r'   r.   r1   r+   r   r7   r:   r<   r3   r2   r5   r4   r   r   r   r   r      s*   
	
r   Ú__main__)Úmainz!idlelib.idle_test.test_parenmatché   )Ú	verbosityN)rH   Zidlelib.hyperparserr   Zidlelib.configr   r0   r@   r   r#   rE   ZunittestrK   r   r   r   r   Ú<module>   s    &