lots and lots of changes & improvements
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@@ -9,7 +9,7 @@
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/* Note: The following macro only garuantees one PushBack.
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*/
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#define UnGetChar() ChPushBack(LexSave)
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#define UnGetChar() ((LexSave != EOI) ? ChPushBack(LexSave) : 0)
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extern int LexSave; /* last character read by GetChar */
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extern int GetChar(); /* character input, with trigraph parsing */
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