1 files changed, 85 insertions, 0 deletions
diff --git a/shared/option-parser.c b/shared/option-parser.c
new file mode 100644
index 00000000..c00349a8
--- /dev/null
+++ b/shared/option-parser.c
@@ -0,0 +1,85 @@
+/*
+ * Copyright © 2012 Kristian Høgsberg
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#include "config.h"
+
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+
+#include "config-parser.h"
+
+static void
+handle_option(const struct weston_option *option, char *value)
+{
+	switch (option->type) {
+	case WESTON_OPTION_INTEGER:
+		* (int32_t *) option->data = strtol(value, NULL, 0);
+		return;
+	case WESTON_OPTION_UNSIGNED_INTEGER:
+		* (uint32_t *) option->data = strtoul(value, NULL, 0);
+		return;
+	case WESTON_OPTION_STRING:
+		* (char **) option->data = strdup(value);
+		return;
+	case WESTON_OPTION_BOOLEAN:
+		* (int32_t *) option->data = 1;
+		return;
+	default:
+		assert(0);
+	}
+}
+
+int
+parse_options(const struct weston_option *options,
+	      int count, int *argc, char *argv[])
+{
+	int i, j, k, len = 0;
+
+	for (i = 1, j = 1; i < *argc; i++) {
+		for (k = 0; k < count; k++) {
+			if (options[k].name)
+				len = strlen(options[k].name);
+			if (options[k].name &&
+			    argv[i][0] == '-' &&
+			    argv[i][1] == '-' &&
+			    strncmp(options[k].name, &argv[i][2], len) == 0 &&
+			    (argv[i][len + 2] == '=' || argv[i][len + 2] == '\0')) {
+				handle_option(&options[k], &argv[i][len + 3]);
+				break;
+			} else if (options[k].short_name &&
+				   argv[i][0] == '-' &&
+				   options[k].short_name == argv[i][1]) {
+				handle_option(&options[k], &argv[i][2]);
+				break;
+			}
+		}
+		if (k == count)
+			argv[j++] = argv[i];
+	}
+	argv[j] = NULL;
+	*argc = j;
+
+	return j;
+}