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a o�h�- � @ s< d Z ddlZddlZddlZddlZddlZddlZddlmZ ddlm Z ddl m Z ddl m Z ddlmZ ddlmZ dd lmZ dd lmZ dd lmZ d'd d�Zdd� Ze�d�Zd(dd�Z dd� Z d)dd�Z d*dd�Z d+dd�Z d,d d �Z!d d � Z"ej#d k�r0ej$�%d!d"�d#k�r0ddl&Z&d$d%� Z'nd&d%� Z'dS )-z� Paging capabilities for IPython.core Notes ----- For now this uses IPython hooks, so it can't be in IPython.utils. If we can get rid of that dependency, we could move it there. ----- � N)�UnsupportedOperation)�Path)� get_ipython)�display)�TryNext)�chop)�system)�get_terminal_size)� py3compat� c C sB t | t�r| }n"|r*d�| �� |d� �} d| i}t|dd� dS )z1Just display, no paging. screen_lines is ignored.� N� text/plainT)�raw)� isinstance�dict�join� splitlinesr )�strng�start� screen_lines�data� r ��/root/rpmbuild/BUILDROOT/imh-python39-modules-3.9.7-92.el8.x86_64/opt/imh-python/lib/python3.9/site-packages/IPython/core/page.py� display_page$ s r c s � fdd�S )zRWrap a pager func to strip the `self` arg so it can be called as a hook. c s � |i |��S )Nr )�self�args�kwargs�Z page_funcr r �<lambda>4 � zas_hook.<locals>.<lambda>r r r r r �as_hook/ s r z (\x1b[^m]+m)c C s� t | t�r| �dd�} | �� |d� }t||d �}t|�dkrVttj� |d �� npd}|dd� D ]F}tj� |�}t|| � t � s� dS t � |�}t|�dkrf|d }qft|tj� |d � � dS )z�Very dumb 'pager' in Python, for when nothing else works. Only moves forward, same interface as page(), except for pager_cmd and mode. r � N� r ���) r r �getr r �len�print�os�linesepr � page_more�esc_re�findall) r r r Zout_lnZscreensZ last_escape�scrZhunkZesc_listr r r � page_dumb9 s r- c C s� t j�dd�}|dks |dkr(tjdks,| S zddl}ddl}W n tyV | Y S 0 z|�tj �}W n6 |j y� } z t d� |��|�W Y d}~n d}~0 0 z |� � }W n ty� | Y S 0 |�� \}}|�� |�tj |j|� |S )z�Attempt to work out the number of lines on the screen. This is called by page(). It can raise an error (e.g. when run in the test suite), so it's separated out so it can easily be called in a try block. �TERMNZxtermz xterm-colorZsunos5r ztermios error: {0})r' �environr$ �sys�platform�termios�curses� ImportError� tcgetattr�stdout�error� TypeError�formatZinitscr�AttributeErrorZgetmaxyxZendwin� tcsetattr�TCSANOW) �screen_lines_defr. r2 r3 Z term_flags�errr, Zscreen_lines_realZ screen_colsr r r �_detect_screen_sizeQ s( & r? c C s� t | t�r| d } tj�dd�}|dv r>tjdkr>t| � dS | �� |d� }tj� |�}t |�}t |�}t |t |d �d �} t � d } |d kr�z|t| �7 }W n ttfy� t|� Y dS 0 | |kr�t|� �n�t|�}|d t||� 7 }tjdk�r�|�d ��rd} n�t�d �\} } t| �}ztt�| � |jd dd��&}|�| � d||f }W d � n1 �sn0 Y t�|��r�d} nd} W t�|� n t�|� 0 n�zhd} t j |dt j t j d�}t� t!j"|j#dd�|�}z&|j$�p�t%j&j$}|�| � W |�� } n |�� } 0 W nR t'�yN } z"|j(dk�r6d} nd} W Y d}~n d}~0 t)�yd d} Y n0 | du�r|t*| |d� dS )a Display a string, piping through a pager after a certain length. strng can be a mime-bundle dict, supplying multiple representations, keyed by mime-type. The screen_lines parameter specifies the number of *usable* lines of your terminal screen (total lines minus lines you need to reserve to show other information). If you set screen_lines to a number <=0, page() will try to auto-determine your screen size and will only use up to (screen_size+screen_lines) for printing, paging after that. That is, if you want auto-detection but need to reserve the bottom 3 lines of the screen, use screen_lines = -3, and for auto-detection without any lines reserved simply use screen_lines = 0. If a string won't fit in the allowed lines, it is sent through the specified pager command. If none given, look for PAGER in the environment, and ultimately default to less. If no system pager works, the string is sent through a 'dumb pager' written in python, very simplistic. r r. �dumb)r@ �emacs�ntN�P r" r � �typez.txtZwt�utf-8��encodingz%s < %sT)�shell�stdin�stderr)� z Broken pipe)r )+r r r' r/ r$ �namer& r r( r r% �max�intr r? r8 r � get_pager_cmd�get_pager_start� startswith�tempfile�mkstempr �close�open�writer �unlink� subprocess�Popen�PIPE�DEVNULL� _wrap_close�io� TextIOWrapperrJ rH r0 r6 �IOErrorr �OSErrorr- )r r r � pager_cmdr. Z str_linesZ str_toprintZ num_newlines�len_strZnumlinesr= �retval�fdZtmpnameZtmppathZtmpfile�cmd�proc�pagerZpager_encoding�msgr r r � pager_page� sv , �� rj c C sN t d|�}t� }|r@z|jj| ||d� W dS ty> Y n0 t| |||�S )a1 Display content in a pager, piping through a pager after a certain length. data can be a mime-bundle dict, supplying multiple representations, keyed by mime-type, or text. Pager is dispatched via the `show_in_pager` IPython hook. If no hook is registered, `pager_page` will be used. r )r r N)rN r �hooksZ show_in_pagerr rj )r r r rb �ipr r r �page� s rm c C s� t |�}|dt||� 7 }z&tjd dv r.t�t|d | � W nR z*|dkrZ|d8 }tt| dd��� |� W n t dt | �� Y n0 Y n0 d S ) zDPage a file, using an optional pager command and starting line. rD r. )rA r@ r r" rF rG zUnable to show fileN) rP rQ r' r/ �EnvironmentErrorr rm rV �readr& �repr)�fnamer rb r r r � page_file s rr c C sp t jdkrd}nt jdv r d}| du rFzt jd } W n |} Y n0 | dkrldt j�d d ��� vrl| d 7 } | S ) zSReturn a pager command. Makes some attempts at finding an OS-correct one. �posixzless -R)rB �dosrE NZPAGER�lessz-r�LESSr! z -R)r' rM r/ r$ �lower)rb Zdefault_pager_cmdr r r rP s rP c C s( | dv r |rdt |� }q$d}nd}|S )zReturn the string for paging files with an offset. This is the '+N' argument which less and more (under Unix) accept. )ru �more�+r! )�str)rh r Z start_stringr r r rQ 6 s rQ rB r. r@ rA c C s6 t j�d� t�� } | dv r"d}nd}t j�d� |S )zg Smart pausing between pages @return: True if need print more lines, False if quit �$---Return to continue, q to quit--- )�q�QFTzo )r0 r6 rW �msvcrt�getwch)�ans�resultr r r r) I s r) c C s$ t �d�} | �� �d�r dS dS d S )Nr{ r| FT)r �inputrw rR )r� r r r r) W s )r r )r r )r r N)r r N)r N)N)(�__doc__r' r^ �rer0 rS rY r �pathlibr ZIPythonr �IPython.displayr ZIPython.core.errorr ZIPython.utils.datar ZIPython.utils.processr ZIPython.utils.terminalr Z IPython.utilsr r r �compiler* r- r? rj rm rr rP rQ rM r/ r$ r~ r) r r r r �<module> s: / r
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