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27 lines
602 B
C
27 lines
602 B
C
#include "stdio.h"
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int __StringRead(void* isc, int ch, int Action) {
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char ret;
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__InStrCtrl* iscp = (__InStrCtrl*)isc;
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switch (Action) {
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case __GetChar:
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ret = *(iscp->NextChar);
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if (ret == '\0') {
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iscp->NullCharDetected = 1;
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return (EOF);
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} else {
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iscp->NextChar++;
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return ((unsigned char)ret);
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}
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case __UngetChar:
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if (!iscp->NullCharDetected)
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iscp->NextChar--;
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else
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iscp->NullCharDetected = 0;
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return (ch);
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case __CheckForError:
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return (iscp->NullCharDetected);
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}
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return 0;
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}
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