50 lines
1.1 KiB
C
50 lines
1.1 KiB
C
/*
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* (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
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* See the copyright notice in the ACK home directory, in the file "Copyright".
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*
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* Author: Ceriel J.H. Jacobs
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*/
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/* S Y N T A X E R R O R R E P O R T I N G */
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/* stripped down version from the one in the Modula-2 compiler */
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/* $Header$ */
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/* Defines the LLmessage routine. LLgen-generated parsers require the
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existence of a routine of that name.
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The routine must do syntax-error reporting and must be able to
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insert tokens in the token stream.
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*/
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#include "idf.h"
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#include "LLlex.h"
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#include "Lpars.h"
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extern char *symbol2str();
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extern struct idf *gen_anon_idf();
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LLmessage(tk)
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register int tk;
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{
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if (tk > 0) {
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/* if (tk > 0), it represents the token to be inserted.
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*/
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error("%s missing before %s", symbol2str(tk), symbol2str(dot.tk_symb));
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aside = dot;
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dot.tk_symb = tk;
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switch (tk) {
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/* The operands need some body */
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case IDENT:
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dot.TOK_IDF = gen_anon_idf();
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break;
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}
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}
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else if (tk < 0) {
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error("garbage at end of program");
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}
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else error("%s deleted", symbol2str(dot.tk_symb));
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}
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