ignore control characters in TTF fonts

Changed files (1)

• modified libbirdfont/load_svg_font.c

Diff

diff --git a/libbirdfont/load_svg_font.c b/libbirdfont/load_svg_font.cindex 70a160a..355689e 100644--- a/libbirdfont/load_svg_font.c+++ b/libbirdfont/load_svg_font.c@@ -246,6 +246,11 @@ GString* get_kerning_data (FT_Face face, FT_Long gid) { 	 	char_left = get_charcode (face, gid); 	+	if (char_left <= 31) {+		fprintf (stderr, "Ignoring kerning for control character.\n");+		return svg;+	}+	 	if (char_left == 0) { 		fprintf (stderr, "No character code could be found for left kerning value.\n"); 		return svg;@@ -263,8 +268,8 @@ GString* get_kerning_data (FT_Face face, FT_Long gid) { 			fprintf (stderr, "No character code could be found for right kerning value.\n"); 			return svg; 		}-		-		if (kerning.x > 0) {++		if (kerning.x > 0 && char_left > 31) { 			g_string_append_printf (svg, "<hkern u1=\"&#x%x;\" u2=\"&#x%x;\" k=\"%d\" />\n", char_left, char_right, kerning.x); 		} 	}@@ -312,7 +317,7 @@ GString* get_svg_font (FT_Face face, int* err) { 		charcode = get_charcode (face, i); 		glyph_element = g_string_new ("<glyph "); 		-		if (charcode != 0) {+		if (charcode > 31) { 			g_string_append (glyph_element,"unicode=\"&#x"); 			g_string_append_printf (glyph_element, "%x", (guint)charcode); 			g_string_append (glyph_element, ";\" ");