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40 lines
1 KiB
C
40 lines
1 KiB
C
/** \file input_common.h
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Header file for the low level input library
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*/
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#ifndef INPUT_COMMON_HH
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#define INPUT_COMMON_HH
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/**
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Hopefully, the biggest value that a wchar_t can have. UCS4 is a
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31-bit character set, we use the upper half for special key
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sequences. On systems where wchar_t is not a 31 (or less) bit character set
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in a 32 (or more) bit type this will fail horribly.
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*/
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#define WCHAR_END 0x80000000
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enum
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{
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R_NULL = WCHAR_END + 1
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}
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;
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void input_common_init( int (*ih)() );
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void input_common_destroy();
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/**
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Function used by input_readch to read bytes from stdin until enough
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bytes have been read to convert them to a wchar_t. Conversion is
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done using mbrtowc. If a character has previously been read and
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then 'unread' using \c input_common_unreadch, that character is
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returned. If timed is true, readch2 will wait at most
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WAIT_ON_ESCAPE milliseconds for a character to be available for
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reading before returning with the value WEOF.
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*/
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wchar_t input_common_readch( int timed );
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void input_common_unreadch( wint_t ch );
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#endif
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