000000b4
 <    /**
 * Summary: interfaces for thread handling
 * Description: set of generic threading related routines
 *              should work with pthreads, Windows native or TLS threads
 *
 * Copy: See Copyright for the status of this software.
 *
 * Author: Daniel Veillard
 */

#ifndef __XML_THREADS_H__
#define __XML_THREADS_H__

#include <libxml/xmlversion.h>

#ifdef __cplusplus
extern "C" {
#endif

/*
 * xmlMutex are a simple mutual exception locks.
 */
typedef struct _xmlMutex xmlMutex;
typedef xmlMutex *xmlMutexPtr;

/*
 * xmlRMutex are reentrant mutual exception locks.
 */
typedef struct _xmlRMutex xmlRMutex;
typedef xmlRMutex *xmlRMutexPtr;

#ifdef __cplusplus
}
#endif
#include <libxml/globals.h>
#ifdef __cplusplus
extern "C" {
#endif
XMLPUBFUN xmlMutexPtr XMLCALL
			xmlNewMutex	(void);
XMLPUBFUN void XMLCALL
			xmlMutexLock	(xmlMutexPtr tok);
XMLPUBFUN void XMLCALL
			xmlMutexUnlock	(xmlMutexPtr tok);
XMLPUBFUN void XMLCALL
			xmlFreeMutex	(xmlMutexPtr tok);

XMLPUBFUN xmlRMutexPtr XMLCALL
			xmlNewRMutex	(void);
XMLPUBFUN void XMLCALL
			xmlRMutexLock	(xmlRMutexPtr tok);
XMLPUBFUN void XMLCALL
			xmlRMutexUnlock	(xmlRMutexPtr tok);
XMLPUBFUN void XMLCALL
			xmlFreeRMutex	(xmlRMutexPtr tok);

/*
 * Library wide APIs.
 */
XMLPUBFUN void XMLCALL
			xmlInitThreads	(void);
XMLPUBFUN void XMLCALL
			xmlLockLibrary	(void);
XMLPUBFUN void XMLCALL
			xmlUnlockLibrary(void);
XMLPUBFUN int XMLCALL
			xmlGetThreadId	(void);
XMLPUBFUN int XMLCALL
			xmlIsMainThread	(void);
XMLPUBFUN void XMLCALL
			xmlCleanupThreads(void);
XMLPUBFUN xmlGlobalStatePtr XMLCALL
			xmlGetGlobalState(void);

#if defined(HAVE_WIN32_THREADS) && !defined(HAVE_COMPILER_TLS) && defined(LIBXML_STATIC_FOR_DLL)
int XMLCALL xmlDllMain(void *hinstDLL, unsigned long fdwReason, void *lpvReserved);
#endif

#ifdef __cplusplus
}
#endif


#endif /* __XML_THREADS_H__ */
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 ª    """Simple textbox editing widget with Emacs-like keybindings."""

import curses
import curses.ascii

def rectangle(win, uly, ulx, lry, lrx):
    """Draw a rectangle with corners at the provided upper-left
    and lower-right coordinates.
    """
    win.vline(uly+1, ulx, curses.ACS_VLINE, lry - uly - 1)
    win.hline(uly, ulx+1, curses.ACS_HLINE, lrx - ulx - 1)
    win.hline(lry, ulx+1, curses.ACS_HLINE, lrx - ulx - 1)
    win.vline(uly+1, lrx, curses.ACS_VLINE, lry - uly - 1)
    win.addch(uly, ulx, curses.ACS_ULCORNER)
    win.addch(uly, lrx, curses.ACS_URCORNER)
    win.addch(lry, lrx, curses.ACS_LRCORNER)
    win.addch(lry, ulx, curses.ACS_LLCORNER)

class Textbox:
    """Editing widget using the interior of a window object.
     Supports the following Emacs-like key bindings:

    Ctrl-A      Go to left edge of window.
    Ctrl-B      Cursor left, wrapping to previous line if appropriate.
    Ctrl-D      Delete character under cursor.
    Ctrl-E      Go to right edge (stripspaces off) or end of line (stripspaces on).
    Ctrl-F      Cursor right, wrapping to next line when appropriate.
    Ctrl-G      Terminate, returning the window contents.
    Ctrl-H      Delete character backward.
    Ctrl-J      Terminate if the window is 1 line, otherwise insert newline.
    Ctrl-K      If line is blank, delete it, otherwise clear to end of line.
    Ctrl-L      Refresh screen.
    Ctrl-N      Cursor down; move down one line.
    Ctrl-O      Insert a blank line at cursor location.
    Ctrl-P      Cursor up; move up one line.

    Move operations do nothing if the cursor is at an edge where the movement
    is not possible.  The following synonyms are supported where possible:

    KEY_LEFT = Ctrl-B, KEY_RIGHT = Ctrl-F, KEY_UP = Ctrl-P, KEY_DOWN = Ctrl-N
    KEY_BACKSPACE = Ctrl-h
    """
    def __init__(self, win, insert_mode=False):
        self.win = win
        self.insert_mode =