[gtk/fix-node-glyphs] gsk: Fix serialization of glyphs

[Matthias Clasen <matthiasc src gnome org>]

commit aa95ae774fdc762c11025bbde37d6db24ff5d65a
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Dec 21 10:46:59 2020 -0500

    gsk: Fix serialization of glyphs
    
    We were forgetting to put a space between two numbers
    in some cases, confusing the parser.
    
    Test included.
    
    Fixes: #3496

 gsk/gskrendernodeparser.c              | 2 +-
 testsuite/gsk/nodeparser/text.node     | 6 ++++++
 testsuite/gsk/nodeparser/text.ref.node | 6 ++++++
 3 files changed, 13 insertions(+), 1 deletion(-)
---
diff --git a/gsk/gskrendernodeparser.c b/gsk/gskrendernodeparser.c
index 756147adb2..a77e8a5a9a 100644
--- a/gsk/gskrendernodeparser.c
+++ b/gsk/gskrendernodeparser.c
@@ -2692,7 +2692,7 @@ render_node_print (Printer       *p,
                 glyphs[i].geometry.x_offset != 0 ||
                 glyphs[i].geometry.y_offset != 0)
             {
-              g_string_append_printf (p->str, "%g %g",
+              g_string_append_printf (p->str, " %g %g",
                                       (double) glyphs[i].geometry.x_offset / PANGO_SCALE,
                                       (double) glyphs[i].geometry.y_offset / PANGO_SCALE);
               if (!glyphs[i].attr.is_cluster_start)
diff --git a/testsuite/gsk/nodeparser/text.node b/testsuite/gsk/nodeparser/text.node
new file mode 100644
index 0000000000..58cd1021f7
--- /dev/null
+++ b/testsuite/gsk/nodeparser/text.node
@@ -0,0 +1,6 @@
+text {
+  color: rgb(50,50,50);
+  font: "Cantarell 11";
+  glyphs: "N", 430 5, 406 8, 417 7, 772 4, 783 5, 783 5, 793 6 0 0 same-cluster;
+  offset: 0 32.0186;
+}
diff --git a/testsuite/gsk/nodeparser/text.ref.node b/testsuite/gsk/nodeparser/text.ref.node
new file mode 100644
index 0000000000..58cd1021f7
--- /dev/null
+++ b/testsuite/gsk/nodeparser/text.ref.node
@@ -0,0 +1,6 @@
+text {
+  color: rgb(50,50,50);
+  font: "Cantarell 11";
+  glyphs: "N", 430 5, 406 8, 417 7, 772 4, 783 5, 783 5, 793 6 0 0 same-cluster;
+  offset: 0 32.0186;
+}