better error msgs

2 files changed, 134 insertions, 0 deletions

diff --git a/plugins/mouse/mouseparse.c b/plugins/mouse/mouseparse.c
new file mode 100644
index 00000000..d2039dd8
--- /dev/null
+++ b/plugins/mouse/mouseparse.c
@@ -0,0 +1,126 @@
+#include "kernel/action.h"
+#include "kernel/parse.h"
+#include "mouse.h"
+
+void mouseparse(ParseToken *token)
+{
+    static char *top = NULL;
+    static char *context = NULL, *button = NULL;
+    static char *arg_str = NULL;
+    static int arg_int = 0;
+    static MouseAction event = -1;
+    static Action *action = NULL;
+    static gboolean err = FALSE;
+
+    if (err) {
+        if (token->type == TOKEN_NEWLINE)
+            err = FALSE;
+        /* just fall through and free the token */
+    } else if (top == NULL) {
+        if (token->type == TOKEN_IDENTIFIER &&
+            !g_ascii_strcasecmp("mbind", token->data.identifier)) {
+            top = token->data.identifier;
+            return;
+        } else {
+            yyerror("syntax error (expected mbind)");
+            err = TRUE;
+        }
+    } else if (context == NULL) {
+        if (token->type == TOKEN_IDENTIFIER) {
+            context = token->data.identifier;
+            return;
+        } else {
+            yyerror("syntax error (expected Key)");
+            err = TRUE;
+        }
+    } else if (event == (unsigned) -1) {
+        if (token->type == TOKEN_IDENTIFIER) {
+            if (!g_ascii_strcasecmp("press", token->data.identifier))
+                event = MouseAction_Press;
+            else if (!g_ascii_strcasecmp("release", token->data.identifier))
+                event = MouseAction_Release;
+            else if (!g_ascii_strcasecmp("click", token->data.identifier))
+                event = MouseAction_Click;
+            else if (!g_ascii_strcasecmp("doubleclick",token->data.identifier))
+                event = MouseAction_DClick;
+            else if (!g_ascii_strcasecmp("drag", token->data.identifier))
+                event = MouseAction_Motion;
+            if (event != (unsigned) -1)
+                return;
+            else {
+                yyerror("invalid event");
+                err = TRUE;
+            }
+        } else {
+            yyerror("syntax error (expected event)");
+            err = TRUE;
+        }
+    } else if (button == NULL) {
+        if (token->type == TOKEN_IDENTIFIER) {
+            button = token->data.identifier;
+            return;
+        } else {
+            yyerror("syntax error (expected button)");
+            err = TRUE;
+        }
+    } else if (action == NULL) {
+        if (token->type == TOKEN_IDENTIFIER) {
+            action = action_from_string(token->data.identifier);
+
+            /* check for valid actions for motion events */
+            if ((event == MouseAction_Motion) ^
+                (action &&
+                 (action->func == action_move ||
+                  action->func == action_resize))) {
+                action_free(action);
+                action = NULL;
+            }
+
+            if (action != NULL) {
+                return;
+            } else {
+                yyerror("invalid action");
+                err = TRUE;
+            }
+        } else {
+            yyerror("syntax error (expected action)");
+            err = TRUE;
+        }
+    } else if (token->type == TOKEN_STRING) {
+        arg_str = token->data.string;
+        return;
+    } else if (token->type == TOKEN_INTEGER) {
+        arg_int = token->data.integer;
+        return;
+    } else if (token->type != TOKEN_NEWLINE) {
+        yyerror("syntax error (unexpected trailing token)");
+    } else {
+
+        /* these use the argument */
+        if (action->func == action_execute || action->func == action_restart)
+            action->data.execute.path = g_strdup(arg_str);
+        if ((action->func == action_desktop ||
+             action->func == action_send_to_desktop) &&
+            arg_int)
+            action->data.desktop.desk = (unsigned) arg_int - 1;
+        if (action->func == action_move_relative_horz ||
+            action->func == action_move_relative_vert ||
+            action->func == action_resize_relative_horz ||
+            action->func == action_resize_relative_vert)
+            action->data.relative.delta = arg_int;
+
+        if (mbind(button, context, event, action))
+            action = NULL; /* don't free this if mbind succeeds */
+        else
+            yyerror("failed to add mouse binding");
+    }
+
+    g_free(top); top = NULL;
+    g_free(context); context = NULL;
+    g_free(button); button = NULL;
+    g_free(arg_str); arg_str = NULL;
+    arg_int = 0;
+    event = -1;
+    action_free(action); action = NULL;
+    parse_free_token(token);
+}
diff --git a/plugins/mouse/mouseparse.h b/plugins/mouse/mouseparse.h
new file mode 100644
index 00000000..0d28d59b
--- /dev/null
+++ b/plugins/mouse/mouseparse.h
@@ -0,0 +1,8 @@
+#ifndef __plugins_mouse_mouseparse_h
+#define __plugins_mouse_mouseparse_h
+
+#include "kernel/parse.h"
+
+void mouseparse(ParseToken *token);
+
+#endif