csope/src/keys.h

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#ifndef KEYS_H
#define KEYS_H
/* Key macros */
/* These macros are not guaranteed to be defined,
* however we wish to test for these anyways while
* interpretting user commands.
* Input values are guaranteed to be postive,
* so setting them to -1 means the test always just silently fail,
* but compile when the they are not supported means of input.
*/
#define KEY_UNDEF_BASE 0
#ifndef KEY_DOWN
# define KEY_DOWN KEY_UNDEF_BASE-1
#endif
#ifndef KEY_UP
# define KEY_UP KEY_UNDEF_BASE-2
#endif
#ifndef KEY_LEFT
# define KEY_LEFT KEY_UNDEF_BASE-3
#endif
#ifndef KEY_RIGHT
# define KEY_RIGHT KEY_UNDEF_BASE-4
#endif
#ifndef KEY_HOME
# define KEY_HOME _KEY_UNDEF_BASE-5
#endif
#ifndef KEY_LL
# define KEY_LL KEY_UNDEF_BASE-6
#endif
#ifndef KEY_PPAGE
# define KEY_PPAGE KEY_UNDEF_BASE-7
#endif
#ifndef KEY_NPAGE
# define KEY_NPAGE KEY_UNDEF_BASE-8
#endif
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#ifndef KEY_ENTER
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# define KEY_ENTER KEY_UNDEF_BASE-9
#endif
#ifndef KEY_CLEAR
# define KEY_CLEAR KEY_UNDEF_BASE-10
#endif
#ifndef KEY_RESIZE
# define KEY_RESIZE KEY_UNDEF_BASE-11
#endif
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#ifndef KEY_END
# define KEY_END KEY_UNDEF_BASE-12
#endif
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/* Always define these keys */
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#ifndef ESC
# define ESC '\033' /* escape character */
#endif
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#ifndef DEL
# define DEL '\177' /* delete character */
#endif
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#endif /* KEYS_H*/