Initial release of the message compiler.
diff --git a/tools/wmc/utils.c b/tools/wmc/utils.c
new file mode 100644
index 0000000..5d0dee5
--- /dev/null
+++ b/tools/wmc/utils.c
@@ -0,0 +1,241 @@
+/*
+ * Utility routines
+ *
+ * Copyright 1998,2000 Bertho A. Stultiens
+ *
+ */
+
+#include "config.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <assert.h>
+#include <ctype.h>
+
+#include "wmctypes.h"
+#include "utils.h"
+#include "wmc.h"
+
+#define SUPPRESS_YACC_ERROR_MESSAGE
+
+static void generic_msg(const char *s, const char *t, va_list ap)
+{
+ fprintf(stderr, "%s %s: %d, %d: ", t, input_name ? input_name : "stdin", line_number, char_number);
+ vfprintf(stderr, s, ap);
+ fprintf(stderr, "\n");
+}
+
+/*
+ * The yyerror routine should not exit because we use the error-token
+ * to determine the syntactic error in the source. However, YACC
+ * uses the same routine to print an error just before the error
+ * token is reduced.
+ * The extra routine 'xyyerror' is used to exit after giving a real
+ * message.
+ */
+int yyerror(const char *s, ...)
+{
+#ifndef SUPPRESS_YACC_ERROR_MESSAGE
+ va_list ap;
+ va_start(ap, s);
+ generic_msg(s, "Yacc error", ap);
+ va_end(ap);
+#endif
+ return 1;
+}
+
+int xyyerror(const char *s, ...)
+{
+ va_list ap;
+ va_start(ap, s);
+ generic_msg(s, "Error", ap);
+ va_end(ap);
+ exit(1);
+ return 1;
+}
+
+int yywarning(const char *s, ...)
+{
+ va_list ap;
+ va_start(ap, s);
+ generic_msg(s, "Warning", ap);
+ va_end(ap);
+ return 0;
+}
+
+void internal_error(const char *file, int line, const char *s, ...)
+{
+ va_list ap;
+ va_start(ap, s);
+ fprintf(stderr, "Internal error (please report) %s %d: ", file, line);
+ vfprintf(stderr, s, ap);
+ fprintf(stderr, "\n");
+ va_end(ap);
+ exit(3);
+}
+
+void error(const char *s, ...)
+{
+ va_list ap;
+ va_start(ap, s);
+ fprintf(stderr, "Error: ");
+ vfprintf(stderr, s, ap);
+ fprintf(stderr, "\n");
+ va_end(ap);
+ exit(2);
+}
+
+void warning(const char *s, ...)
+{
+ va_list ap;
+ va_start(ap, s);
+ fprintf(stderr, "Warning: ");
+ vfprintf(stderr, s, ap);
+ fprintf(stderr, "\n");
+ va_end(ap);
+}
+
+char *dup_basename(const char *name, const char *ext)
+{
+ int namelen;
+ int extlen = strlen(ext);
+ char *base;
+ char *slash;
+
+ if(!name)
+ name = "wmc.tab";
+
+ slash = strrchr(name, '/');
+ if (slash)
+ name = slash + 1;
+
+ namelen = strlen(name);
+
+ /* +4 for later extension and +1 for '\0' */
+ base = (char *)xmalloc(namelen +4 +1);
+ strcpy(base, name);
+ if(!strcasecmp(name + namelen-extlen, ext))
+ {
+ base[namelen - extlen] = '\0';
+ }
+ return base;
+}
+
+void *xmalloc(size_t size)
+{
+ void *res;
+
+ assert(size > 0);
+ assert(size < 102400);
+ res = malloc(size);
+ if(res == NULL)
+ {
+ error("Virtual memory exhausted.\n");
+ }
+ /*
+ * We set it to 0.
+ * This is *paramount* because we depend on it
+ * just about everywhere in the rest of the code.
+ */
+ memset(res, 0, size);
+ return res;
+}
+
+
+void *xrealloc(void *p, size_t size)
+{
+ void *res;
+
+ assert(size > 0);
+ assert(size < 102400);
+ res = realloc(p, size);
+ if(res == NULL)
+ {
+ error("Virtual memory exhausted.\n");
+ }
+ return res;
+}
+
+char *xstrdup(const char *str)
+{
+ char *s;
+
+ assert(str != NULL);
+ s = (char *)xmalloc(strlen(str)+1);
+ return strcpy(s, str);
+}
+
+int unistrlen(const WCHAR *s)
+{
+ int n;
+ for(n = 0; *s; n++, s++)
+ ;
+ return n;
+}
+
+WCHAR *unistrcpy(WCHAR *dst, const WCHAR *src)
+{
+ WCHAR *t = dst;
+ while(*src)
+ *t++ = *src++;
+ *t = 0;
+ return dst;
+}
+
+WCHAR *xunistrdup(const WCHAR * str)
+{
+ WCHAR *s;
+
+ assert(str != NULL);
+ s = (WCHAR *)xmalloc((unistrlen(str)+1) * sizeof(WCHAR));
+ return unistrcpy(s, str);
+}
+
+int unistricmp(const WCHAR *s1, const WCHAR *s2)
+{
+ int i;
+ int once = 0;
+ static char warn[] = "Don't know the uppercase equivalent of non acsii characters;"
+ "comparison might yield wrong results";
+ while(*s1 && *s2)
+ {
+ if((*s1 & 0xffff) > 0x7f || (*s2 & 0xffff) > 0x7f)
+ {
+ if(!once)
+ {
+ once++;
+ yywarning(warn);
+ }
+ i = *s1++ - *s2++;
+ }
+ else
+ i = toupper(*s1++) - toupper(*s2++);
+ if(i)
+ return i;
+ }
+
+ if((*s1 & 0xffff) > 0x7f || (*s2 & 0xffff) > 0x7f)
+ {
+ if(!once)
+ yywarning(warn);
+ return *s1 - *s2;
+ }
+ else
+ return toupper(*s1) - toupper(*s2);
+}
+
+int unistrcmp(const WCHAR *s1, const WCHAR *s2)
+{
+ int i;
+ while(*s1 && *s2)
+ {
+ i = *s1++ - *s2++;
+ if(i)
+ return i;
+ }
+
+ return *s1 - *s2;
+}
+
