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-rw-r--r--gram.y190
1 files changed, 190 insertions, 0 deletions
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+%{
+
+/*
+ *
+ * IRBOX, an Ivy driver for infra-red remote controls
+ *
+ * Copyright 1998-1999
+ * Centre d'Etudes de la Navigation Aerienne
+ *
+ * This is the grammar for reading tables
+ *
+ * $Id$
+ *
+ */
+
+extern const char* const ResWords;
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "irtable.h"
+
+extern int yyparse ();
+extern int yylex ();
+extern int LineNo;
+
+
+static char id_buf [1024]; /* Yeech */
+static char id_list_buf [4096]; /* Barf */
+
+static const char* filename = 0;
+static IrTable* cur_table;
+
+%}
+
+%union {
+ const char *name;
+ int integer;
+}
+
+%token Y_NAME Y_TYPE Y_BRAND Y_EOL
+%token <name> Y_ID Y_STRING
+%token <integer> Y_INT
+
+
+%type <name> id id_list
+
+%%
+
+instr_list:
+ /* empty */
+ | instr_list instr
+ ;
+
+id:
+ Y_ID
+ {
+ strcpy (id_buf, $1);
+ free ((char*) $1); /* was allocated by strdup in lex file */
+ $$ = id_buf;
+ }
+ | Y_INT
+ {
+ sprintf (id_buf, "%d", $1);
+ $$ = id_buf;
+ }
+ ;
+
+id_list:
+ id
+ {
+ strcpy (id_list_buf, $1);
+ $$ = $1;
+ }
+ | id_list id
+ {
+ strcat (id_list_buf, " ");
+ strcat (id_list_buf, $2);
+ $$ = id_list_buf;
+ }
+ ;
+
+instr:
+ Y_EOL
+
+ | Y_NAME Y_ID Y_EOL
+ {
+ IrTableName (cur_table, $2);
+ }
+
+ | Y_TYPE ':' Y_ID Y_EOL
+ {
+ IrTableType (cur_table, $3);
+ }
+
+ | Y_BRAND ':' id_list Y_EOL
+ {
+ IrTableAddBrand (cur_table, $3);
+ }
+
+ | id_list ':' Y_INT Y_INT Y_INT Y_INT Y_INT Y_INT Y_EOL
+ {
+ IrTableAddKey (cur_table, $1, $3, $4, $5, $6, $7, $8);
+ }
+ ;
+
+
+%%
+#include <stdio.h>
+
+int _DoTee = 0;
+
+int
+tee (int x)
+{
+ if (_DoTee) {
+ char *s;
+ switch (x) {
+ case ':':
+ s = ":";
+ break;
+ case Y_EOL:
+ s = "Y_EOL\n";
+ break;
+ case Y_STRING:
+ s = "STRING";
+ break;
+ case Y_INT:
+ s = "INT";
+ break;
+ case Y_ID:
+ s = "ID";
+ break;
+ case Y_TYPE:
+ s = "TYPE";
+ break;
+ case Y_BRAND:
+ s = "BRAND";
+ break;
+/* case Y_:
+ s = "";
+ break;
+*/
+ default :
+ s = "???";
+ break;
+ }
+ printf ("%s ", s);
+ }
+ return x;
+}
+
+
+int
+yyerror (const char *s)
+{
+ fprintf (stderr, "%s in %s, line %d\n", s, filename, LineNo);
+ return (0);
+}
+
+int
+yywrap ()
+{
+ return 1;
+}
+
+
+IrTable*
+IrTableReadFile (const char* file)
+{
+ extern void LexInit ();
+ extern FILE *yyin;
+ int result;
+
+ LexInit ();
+ filename = file;
+ if (!(yyin = fopen (file,"r"))) {
+ char err [1024];
+ fprintf (stderr, "Cannot open %s\n", file);
+ return 0;
+ }
+ cur_table = IrCreateTable ();
+ if (yyparse ()) {
+ result = 0;
+ }
+ fclose (yyin);
+ return cur_table;
+}
+