Added grammar and management of translation tables for events

irbox.c -> irman.c

1 files changed, 111 insertions, 0 deletions

diff --git a/irtable.c b/irtable.c
new file mode 100644
index 0000000..9be02fa
--- /dev/null
+++ b/irtable.c
@@ -0,0 +1,111 @@
+#include "irtable.h"
+#include "irdev.h"
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+typedef struct _irtablecell IrTableCell;
+
+struct _irtablecell {
+	IrTable* table;
+	unsigned char code[6];
+	const char* key;
+	IrTableCell*	next;
+};
+
+
+
+
+IrTable*
+IrCreateTable ()
+{
+	return (IrTable*) malloc (sizeof (IrTable));
+}
+
+void
+IrTableName (IrTable* t, const char* n)
+{
+	t->name = strdup (n);
+}
+
+void
+IrTableType (IrTable* t, const char* type)
+{
+	t->type = strdup (type);
+}
+
+void
+IrTableAddBrand (IrTable* t, const char* b)
+{
+}
+
+
+
+#define KEYCELLS 127
+#define CODECELLS 1023
+
+static IrTableCell* KeyToCell [KEYCELLS];
+static IrTableCell* CodeToCell [CODECELLS];
+
+static unsigned int
+IrHashKey (const char* key)
+{
+	register unsigned int h = 0;
+	register const char* p = key;
+	while (*p)
+		h += (h << 3) + *p++;	/* this hash function was stolen from Tcl */
+	return h % KEYCELLS;
+}
+
+static unsigned int
+IrHashCode (const unsigned char* code)
+{
+	register unsigned int h = 0;
+	register const unsigned char* p = code;
+	register const unsigned char* q = p+6;
+	while (p < q)
+		h += (h << 3) + *p++;	/* A ADAPTER */
+	return h % CODECELLS;
+}
+
+void
+IrTableAddKey (IrTable* t, const char* k, int c0, int c1, int c2, int c3 , int c4, int c5)
+{
+	IrTableCell* c = (IrTableCell*) malloc (sizeof (IrTableCell));
+	IrTableCell** cc;
+
+	c->table = t;
+	c->key = strdup (k);
+	c->code[0] = c0;
+	c->code[1] = c1;
+	c->code[2] = c2;
+	c->code[3] = c3;
+	c->code[4] = c4;
+	c->code[5] = c5;
+	cc = CodeToCell + IrHashCode (c->code);
+	/* GERER LES COLLISIONS */
+	c->next = *cc;
+	*cc = c;
+}
+
+int
+IrTableTranslateCode (const unsigned char* code, IrTable** table, const char** key)
+{
+	IrTableCell* c;
+
+	c = CodeToCell [IrHashCode (code)];
+	while (c) {
+		if (strncmp (code, c->code, 6) == 0)
+			break;
+		c = c->next;
+	}
+	if (c) {
+		if (table) *table = c->table;
+		if (key) *key = c->key;
+	} else {
+		if (table) *table = 0;
+		if (key) *key = 0;
+	}
+	return (int) (c);
+}
+