o

�
i��@s�dZd
dl
Z
d
dlmZmZmZ
d
dlmZ
dd�ZGdd�d�Zd	d
�Z	dd�Z
d
d�Zedkr?d
dl
mZ
eddd�
dSdS)z'Define SearchEngine for search dialogs.�N)�	StringVar�
BooleanVar�TclError)
�
messageboxc

Cst|d
�s
t
|�
|_|jS)z�Return the singleton SearchEngine instance for the process.

    The single SearchEngine saves settings between dialog instances.
    If there is not a SearchEngine already, make one.
    �
_searchengine)�hasattr�SearchEnginer)
�root�r
�1/usr/local/lib/python3.10/idlelib/searchengine.py�gets


rc@s�eZ
dZd
Zdd�Zdd�Zdd�Zdd	�Zd
d�Zdd
�Z	dd�Z
dd�Zdd�Zdd�Z
dd�Zd"dd�
Zd#dd�
Zd$dd�
Zd$d d!�
ZdS)%rz<Handles searching a text widget for Find, Replace, and Grep.cCsR|
|_t
|
d
�|_t|
d�|_t|
d�|_t|
d�|_t|
d�|_t|
d�|_dS)z�Initialize Variables that save search state.

        The dialogs bind these to the UI elements present in the dialogs.
        �FTN)	r	r�patvarr�revar�casevar�wordvar�wrapvar�backvar)�selfr	r
r
r�__init__s





zSearchEngine.__init__c

C�
|j�
�S�
N)rr�
rr
r
r�getpat%�

zSearchEngine.getpatcCs|j�
|
�

dSr)r�set�r�patr
r
r�setpat(s
zSearchEngine.setpatc

Crr)rrrr
r
r�isre+rzSearchEngine.isrec

Crr)rrrr
r
r�iscase.rzSearchEngine.iscasec

Crr)rrrr
r
r�isword1rzSearchEngine.iswordc

Crr)rrrr
r
r�iswrap4rzSearchEngine.iswrapc

Crr)rrrr
r
r�isback7rzSearchEngine.isbackcCs |��r	t
�|
�
}
|�|
�

d
S)z!Set pattern after escaping if re.N)r�re�escaperrr
r
r�setcookedpat<s


zSearchEngine.setcookedpatc
Cs.|��}
|�
�s
t�|
�
}
|��rd
|
}
|
S)Nz\b%s\b)rrr$r%r!rr
r
r�getcookedpatCs






zSearchEngine.getcookedpatc

Cs�|��}
|
s|�
|
d
�
dS|��}
d}|��s|tjB}z	t�|
|�}W|StjyC
}
z|�
|
|j|j	�
WYd}~dSd}~w
w)z&Return compiled cooked search pattern.zEmpty regular expressionNr
)
r�report_errorr'r r$�
IGNORECASE�compile�error�msg�pos)rr�flags�prog�
er
r
r�getprogKs 









�

��zSearchEngine.getprogNcCsNd
t|�
}|
r|dt|
�
}|du
r|dt|�
}t
jd||jd�
dS)NzError: z

Pattern: z	
Offset: zRegular expression error)
Zmaster)�strrZ	showerrorr	)rrr,�colr
r
rr(\s






�zSearchEngine.report_errorr
cCs�|s
|��}|s
d
S|j
��}t|
�
\}}|��r2|r|}n|}t|�
\}}	|�|
|||	||�}
|
S|r7|}n|}t|�
\}}	|�|
|||	||�}
|
S)a�Return (lineno, matchobj) or None for forward/backward search.

        This function calls the right function with the right arguments.
        It directly return the result of that call.

        Text is a text widget. Prog is a precompiled pattern.
        The ok parameter is a bit complicated as it has two effects.

        If there is a selection, the search begin at either end,
        depending on the direction setting and ok, with ok meaning that
        the search starts with the selection. Otherwise, search begins
        at the insert mark.

        To aid progress, the search functions do not return an empty
        match at the starting position unless ok is True.
        N)r1rr�
get_selectionr#�get_line_col�search_backward�search_forward)r�textr/�ok�wrap�first�last�start�liner3�resr
r
r�search_textfs&










�



zSearchEngine.search_textcCs�d
}|}|
�d|d|d�}	|	rY|�
|	dd�|�}
|
r*|s&|
��|kr*||
fS|d}|r7||kr7	dSd
}d}|
�d|d|d�}	|	sW|rWd}d
}d}|
�dd�}	|	sdS)Nr
�%d.0�
���z1.0z2.0)r�search�end)rr8r/r>r3r:r9�wrapped�	startline�chars�
mr
r
rr7�s,










	�






�zSearchEngine.search_forwardcCs�d
}|}|
�d|d|d�}		t
||	dd�|�}
|
r)|s%|
��|kr)||
fS|d}|r6||kr6	dSd}|d
k
rT|sA	dSd}d
}|
�d�
}tt|�d�
�\}}|
�d|d|d�}	t|	�
d}q)Nr
rArBTrCzend-1c�
.)r�search_reverser=�index�map�int�split�len)rr8r/r>r3r:r9rFrGrHrIr-r
r
rr6�s0










�


�





�zSearchEngine.search_backwardr)Nr
)
r
)�__name__�
__module__�__qualname__�__doc__rrrrr r!r"r#r&r'r1r(r@r7r6r
r
r
rrs"




(rcCs||�|
�
}|s	d
Sd
}|�
�\}}||kr<||k
r<|}||kr#|d}|�|
|�}|s.	|S|�
�\}}||kr<||k
s|S)a&
Search backwards and return an re match object or None.

    This is done by searching forwards until there is no match.
    Prog: compiled re object with a search method returning a match.
    Chars: line of text, without \n.
    Col: stop index for the search; the limit for match.end().
    NrB)rD�span)r/rHr3rI�found�
i�
jr
r
rrK�s 











��rKc
CsRz|�d
�
}
|�d�
}Wn
t
y


d}
}Yn
w|
s!|�d�
}
|s%|
}|
|fS)zFReturn tuple of 'line.col' indexes from selection or insert mark.
    z	sel.firstzsel.lastN�insert)rLr)r8r;r<r
r
rr4�s




�




r4c
Cstt
|�d
�
�\}
}|
|fS)z8Return (line, col) tuple of ints from 'line.col' string.rJ)rMrNrO)rLr>r3r
r
rr5�s
r5�__main__)
�mainz#idlelib.idle_test.test_searchengine�)
�	verbosity)rTr$�tkinterrrrrrrrKr4r5rQZunittestr[r
r
r
r�<module>
s

+

�