mirror of https://github.com/python/cpython
Fix a few markup errors and lots of small consistency issues.
Add "See also" link to curses.wrapper module from curses module.
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@ -22,7 +22,10 @@ Unix.
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characters, regardless of your locale
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settings.}
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\seemodule{curses.textpad}{Editable text widget for curses supporting
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Emacs-like bindings.}
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\program{Emacs}-like bindings.}
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\seemodule{curses.wrapper}{Convenience function to ensure proper
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terminal setup and resetting on
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application entry and exit.}
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\seetext{Tutorial material on using curses with Python is available
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on the Python Web site as Andrew Kuchling's
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\citetitle[http://www.python.org/doc/howto/curses/curses.html]{Curses
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@ -34,8 +37,9 @@ Unix.
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\subsection{Functions \label{curses-functions}}
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The module \module{curses} defines the following exception:
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\begin{excdesc}{error}
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Curses function returned an error status.
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Exception raised when a curses library function returns an error.
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\end{excdesc}
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\strong{Note:} Whenever \var{x} or \var{y} arguments to a function
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@ -967,8 +971,9 @@ A string representing the current version of the module.
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Also available as \constant{__version__}.
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\end{datadesc}
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Several constants are available to specify character cell attributes:
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\begin{tableii}{c|l}{code}{Attribute}{Meaning}
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\begin{tableii}{l|l}{code}{Attribute}{Meaning}
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\lineii{A_ALTCHARSET}{Alternate character set mode.}
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\lineii{A_BLINK}{Blink mode.}
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\lineii{A_BOLD}{Bold mode.}
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@ -979,12 +984,12 @@ Also available as \constant{__version__}.
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\end{tableii}
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Keys are referred to by integer constants with names starting with
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\code{KEY_}. The exact keycaps available are system dependent.
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\samp{KEY_}. The exact keycaps available are system dependent.
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% XXX this table is far too large!
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% XXX should this table be alphabetized?
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\begin{tableii}{c|l}{code}{Key constant}{Key}
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\begin{tableii}{l|l}{code}{Key constant}{Key}
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\lineii{KEY_MIN}{Minimum key value}
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\lineii{KEY_BREAK}{ Break key (unreliable) }
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\lineii{KEY_DOWN}{ Down-arrow }
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@ -1081,14 +1086,16 @@ Keys are referred to by integer constants with names starting with
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\lineii{KEY_MAX}{Maximum key value}
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\end{tableii}
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On VT100s and their software emulations such as X terminal emulators,
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there are normally at least four function keys (KEY_F1, KEY_F2,
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KEY_F3, KEY_F4) available and the arrow keys mapped to KEY_UP,
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KEY_DOWN, KEY_LEFT and KEY_RIGHT in the obvious way. If your machine has a PC
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keybboard, it is safe to expect arrow keys and twelve function keys; also,
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the following keypad mappings are standard:
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On VT100s and their software emulations, such as X terminal emulators,
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there are normally at least four function keys (\constant{KEY_F1},
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\constant{KEY_F2}, \constant{KEY_F3}, \constant{KEY_F4}) available,
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and the arrow keys mapped to \constant{KEY_UP}, \constant{KEY_DOWN},
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\constant{KEY_LEFT} and \constant{KEY_RIGHT} in the obvious way. If
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your machine has a PC keybboard, it is safe to expect arrow keys and
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twelve function keys (older PC keyboards may have only ten function
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keys); also, the following keypad mappings are standard:
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\begin{tableii}{c|l}{code}{Keycap}{code}
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\begin{tableii}{l|l}{kbd}{Keycap}{Constant}
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\lineii{Insert}{KEY_IC}
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\lineii{Delete}{KEY_DC}
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\lineii{Home}{KEY_HOME}
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@ -1105,7 +1112,7 @@ approximation.
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\strong{Note:} These are available only after \function{initscr()} has
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been called.
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\begin{tableii}{c|l}{code}{ACS code}{Meaning}
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\begin{tableii}{l|l}{code}{ACS code}{Meaning}
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\lineii{ACS_BBSS}{alternate name for upper right corner}
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\lineii{ACS_BLOCK}{solid square block}
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\lineii{ACS_BOARD}{board of squares}
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@ -1153,7 +1160,7 @@ been called.
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The following table lists the predefined colors:
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\begin{tableii}{c|l}{code}{Constant}{Color}
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\begin{tableii}{l|l}{code}{Constant}{Color}
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\lineii{COLOR_BLACK}{Black}
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\lineii{COLOR_BLUE}{Blue}
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\lineii{COLOR_CYAN}{Cyan (light greenish blue)}
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@ -1180,9 +1187,7 @@ Navigator, BBedit 6.x, FrameMaker, and many other programs). The
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module also provides a rectangle-drawing function useful for framing
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text boxes or for other purposes.
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\subsection{Functions \label{curses-textpad-functions}}
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The module \module{curses.textpad} defines the following functions:
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The module \module{curses.textpad} defines the following function:
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\begin{funcdesc}{rectangle}{win, uly, ulx, lry, lrx}
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Draw a rectangle. The first argument must be a window object; the
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@ -1196,34 +1201,36 @@ software terminal emulators). Otherwise it will be drawn with ASCII
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dashes, vertical bars, and plus signs.
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\end{funcdesc}
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\subsection{Textbox objects \label{curses-textpad-objects}}
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You can instantiate a \class{Textbox} object as follows:
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\classdesc{Textbox}{win}
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Return a textbox widget object. The win argument should be a curses
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\class{WindowObject} in which the textbox is to be contained. The
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edit cursor of the textbox is initially located at the upper left
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hand corner of the containin window, with coordinates (0,0). The
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instance's \member{stripspaces} flag is initially on.
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\begin{classdesc}{Textbox}{win}
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Return a textbox widget object. The \var{win} argument should be a
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curses \class{WindowObject} in which the textbox is to be contained.
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The edit cursor of the textbox is initially located at the upper left
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hand corner of the containin window, with coordinates \code{(0, 0)}.
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The instance's \member{stripspaces} flag is initially on.
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\end{classdesc}
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Textbox objects, have the following methods:
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\class{Textbox} objects have the following methods:
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\begin{methoddesc}{edit}{validator=None}
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\begin{methoddesc}{edit}{\optional{validator}}
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This is the entry point you will normally use. It accepts editing
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keystrokes until one of the termination keystrokes is entered. If a
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validator function is specified, each entered keystroke is passed to
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it; command dispatch is done on the result. This method returns the
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window contents as a string; whether blanks in the window are included
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is affected by the \member{stripspaces} member.
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keystrokes until one of the termination keystrokes is entered. If
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\var{validator} is supplied, it must be a function. It will be called
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for each keystroke entered with the keystroke as a parameter; command
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dispatch is done on the result. This method returns the window
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contents as a string; whether blanks in the window are included is
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affected by the \member{stripspaces} member.
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\end{methoddesc}
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\begin{methoddesc}{do_command}{ch}
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Process a single command keystroke. Here are the supported special
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keystrokes:
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\begin{tableii}{c|l}{code}{keystroke}{action}
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\begin{tableii}{l|l}{kbd}{Keystroke}{Action}
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\lineii{Ctrl-A}{Go to left edge of window.}
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\lineii{Ctrl-B}{Cursor left, wrapping to previous line if appropriate.}
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\lineii{Ctrl-D}{Delete character under cursor.}
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@ -1241,8 +1248,15 @@ keystrokes:
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Move operations do nothing if the cursor is at an edge where the
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movement is not possible. The following synonyms are supported where
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possible: KEY_LEFT = Ctrl-B, KEY_RIGHT = Ctrl-F, KEY_UP = Ctrl-P,
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KEY_DOWN = Ctrl-N, KEY_BACKSPACE = Ctrl-h.
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possible:
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\begin{tableii}{l|l}{constant}{Constant}{Keystroke}
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\lineii{KEY_LEFT}{\kbd{Ctrl-B}}
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\lineii{KEY_RIGHT}{\kbd{Ctrl-F}}
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\lineii{KEY_UP}{\kbd{Ctrl-P}}
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\lineii{KEY_DOWN}{\kbd{Ctrl-N}}
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\lineii{KEY_BACKSPACE}{\kbd{Ctrl-h}}
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\end{tableii}
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All other keystrokes are treated as a command to insert the given
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character and move right (with line wrapping).
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@ -1254,21 +1268,22 @@ the window are included is affected by the \member{stripspaces}
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member.
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\end{methoddesc}
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\begin{methoddesc}{stripspaces}{}
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\begin{memberdesc}{stripspaces}
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This data member is a flag which controls the interpretation of blanks in
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the window. When it is on, trailing blanks on each line are ignored;
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any cursor motion that would land the cursor on a trailing blank goes
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to the end of that line instead, and trailing blanks are stripped when
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the window contents is gathered.
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\end{methoddesc}
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\end{memberdesc}
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\section{\module{curses.wrapper} ---
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Exception-handling wrapper for curses programs.}
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Terminal handler for curses programs}
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\declaremodule{standard}{curses.wrapper}
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\sectionauthor{Eric Raymond}{esr@thyrsus.com}
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\moduleauthor{Eric Raymond}{esr@thyrsus.com}
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\modulesynopsis{Exception-handling wrapper for curses programs.}
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\modulesynopsis{Terminal configuration wrapper for curses programs.}
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\versionadded{1.6}
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This module supplies one function, \function{wrapper()}, which runs
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@ -1277,12 +1292,10 @@ application. If the application raises an exception,
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\function{wrapper()} will restore the terminal to a sane state before
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passing it further up the stack and generating a traceback.
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\subsection{Functions \label{curses-wrapper-functions}}
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\begin{funcdesc}{wrapper}{func, *rest}
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\begin{funcdesc}{wrapper}{func, \moreargs}
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Wrapper function that initializes curses and calls another function,
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\function{func}, restoring normal keyboard/screen behavior on error.
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The callable object 'func' is then passed the main window 'stdscr'
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\var{func}, restoring normal keyboard/screen behavior on error.
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The callable object \var{func} is then passed the main window 'stdscr'
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as its first argument, followed by any other arguments passed to
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\function{wrapper()}.
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\end{funcdesc}
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