Support for Catalan middle dot in word start and end

1 files changed, 61 insertions, 0 deletions

diff --git a/pango/break-latin.c b/pango/break-latin.c
new file mode 100644
index 00000000..608bff94
--- /dev/null
+++ b/pango/break-latin.c
@@ -0,0 +1,61 @@
+/* Pango
+ * break-latin.c:
+ *
+ * Copyright (C) 2021 Jordi Mas i Hernàndez <jmas@softcatala.org>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#include "config.h"
+
+#include "pango-break.h"
+#include "pango-impl-utils.h"
+
+static void
+break_latin (const char          *text,
+	    int                  len,
+	    const PangoAnalysis *analysis G_GNUC_UNUSED,
+	    PangoLogAttr        *attrs,
+	    int                  attrs_len G_GNUC_UNUSED)
+{
+
+    if (analysis && analysis->language &&
+        g_ascii_strncasecmp (pango_language_to_string (analysis->language), "ca-", 3) != 0)
+        return;
+
+    const gchar *next;
+    gunichar wc;
+    gunichar prev_wc = 0;
+
+    next = text;
+    for (int i = 0; i < len; i++)
+    {
+        wc = g_utf8_get_char (next);
+        next = g_utf8_next_char (next);
+
+        /* Catalan middle dot does not break words */
+        if (wc == 0x00b7)
+        {
+            gunichar middle_next = g_utf8_get_char (next);
+            if (g_unichar_tolower (middle_next) == 'l' && g_unichar_tolower (prev_wc) == 'l')
+            {
+              attrs[i].is_word_end = FALSE;
+              attrs[i+1].is_word_start = FALSE;
+            }
+        }
+        prev_wc = wc;
+    }
+}
+