moved source files into commit repository

1 files changed, 82 insertions, 0 deletions

diff --git a/src/debug.c b/src/debug.c
new file mode 100644
index 00000000..1cfd24d7
--- /dev/null
+++ b/src/debug.c
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+/*
+ * Copyright 2010-2018 Adrian Thurston <thurston@colm.net>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <colm/debug.h>
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <colm/program.h>
+
+const char *const colm_realm_names[REALMS] =
+	// @NOTE: keep this in sync with 'main.cc': 'processArgs()' '-D' option
+	{
+		"BYTECODE",
+		"PARSE",
+		"MATCH",
+		"COMPILE",
+		"POOL",
+		"PRINT",
+		"INPUT",
+		"SCAN",
+	};
+
+int _debug( struct colm_program *prg, long realm, const char *fmt, ... )
+{
+	int result = 0;
+	if ( prg->active_realm & realm ) {
+		/* Compute the index by shifting. */
+		int ind = 0;
+		while ( (realm & 0x1) != 0x1 ) {
+			realm >>= 1;
+			ind += 1;
+		}
+
+		fprintf( stderr, "%s: ", colm_realm_names[ind] );
+		va_list args;
+		va_start( args, fmt );
+		result = vfprintf( stderr, fmt, args );
+		va_end( args );
+	}
+
+	return result;
+}
+
+void fatal( const char *fmt, ... )
+{
+	va_list args;
+	fprintf( stderr, "fatal: " );
+	va_start( args, fmt );
+	vfprintf( stderr, fmt, args );
+	va_end( args );
+	exit(1);
+}
+
+void message( const char *fmt, ... )
+{
+	va_list args;
+	fprintf( stderr, "message: " );
+	va_start( args, fmt );
+	vfprintf( stderr, fmt, args );
+	va_end( args );
+}