Initial revision

1 files changed, 29 insertions, 0 deletions

diff --git a/Parser/tokenizer.h b/Parser/tokenizer.h
new file mode 100644
index 0000000..8950c62
--- /dev/null
+++ b/Parser/tokenizer.h
@@ -0,0 +1,29 @@
+/* Tokenizer interface */
+
+#include "token.h"	/* For token types */
+
+#define MAXINDENT 100	/* Max indentation level */
+
+/* Tokenizer state */
+struct tok_state {
+	/* Input state; buf <= cur <= inp <= end */
+	/* NB an entire token must fit in the buffer */
+	char *buf;	/* Input buffer */
+	char *cur;	/* Next character in buffer */
+	char *inp;	/* End of data in buffer */
+	char *end;	/* End of input buffer */
+	int done;	/* 0 normally, 1 at EOF, -1 after error */
+	FILE *fp;	/* Rest of input; NULL if tokenizing a string */
+	int tabsize;	/* Tab spacing */
+	int indent;	/* Current indentation index */
+	int indstack[MAXINDENT];	/* Stack of indents */
+	int atbol;	/* Nonzero if at begin of new line */
+	int pendin;	/* Pending indents (if > 0) or dedents (if < 0) */
+	char *prompt, *nextprompt;	/* For interactive prompting */
+	int lineno;	/* Current line number */
+};
+
+extern struct tok_state *tok_setups PROTO((char *));
+extern struct tok_state *tok_setupf PROTO((FILE *, char *ps1, char *ps2));
+extern void tok_free PROTO((struct tok_state *));
+extern int tok_get PROTO((struct tok_state *, char **, char **));