[librsvg: 3/8] rsvg-dimensions.c: Be clear on whether a fragment is not found, or whether its position/dimensions c

[Federico Mena Quintero <federico src gnome org>]

commit 8bee563e3cf79cc1bdb23a620625c7686a3984d3
Author: Federico Mena Quintero <federico gnome org>
Date:   Tue Sep 25 17:02:29 2018 -0500

    rsvg-dimensions.c: Be clear on whether a fragment is not found, or whether its position/dimensions could 
not be computed

 tools/rsvg-dimensions.c | 28 ++++++++++++++++++++++------
 1 file changed, 22 insertions(+), 6 deletions(-)
---
diff --git a/tools/rsvg-dimensions.c b/tools/rsvg-dimensions.c
index 5869c474..e3c5203d 100644
--- a/tools/rsvg-dimensions.c
+++ b/tools/rsvg-dimensions.c
@@ -85,18 +85,34 @@ main (int     argc,
         }
 
         if (fragment && handle) {
-            gboolean have_fragment = FALSE;
-            have_fragment |= rsvg_handle_get_dimensions_sub (handle,
-                    &dimensions, fragment);
-            have_fragment |= rsvg_handle_get_position_sub (handle,
-                    &position, fragment);
-            if (!have_fragment) {
+            if (!rsvg_handle_has_sub (handle, fragment)) {
                 g_warning ("%s: fragment `'%s' not found.",
                         file, fragment);
                 exit_code = EXIT_FAILURE;
                 goto bail;
             }
 
+            gboolean have_position, have_dimensions;
+
+            have_dimensions = rsvg_handle_get_dimensions_sub (handle,
+                                                              &dimensions, fragment);
+            have_position = rsvg_handle_get_position_sub (handle,
+                                                          &position, fragment);
+            if (!have_dimensions) {
+                g_warning ("%s: could not compute position for fragment `'%s'.",
+                        file, fragment);
+            }
+
+            if (!have_position) {
+                g_warning ("%s: could not compute dimensions for fragment `'%s'.",
+                        file, fragment);
+            }
+
+            if (!have_position || !have_dimensions) {
+                exit_code = EXIT_FAILURE;
+                goto bail;
+            }
+
             printf ("%s, fragment `%s': x=%d, y=%d, %dx%d, em=%f, ex=%f\n",
                     file, fragment,
                     position.x, position.y,