Fix crash when using pango markup font

The characters & < > ' " needs to be escaped when using pango markup

Signed-off-by: Heghedus Razvan <heghedus.razvan@gmail.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/include/pango.h b/include/pango.h
index f6325f28..d8263f9e 100644
--- a/include/pango.h
+++ b/include/pango.h
@@ -6,6 +6,17 @@
 #include <cairo/cairo.h>
 #include <pango/pangocairo.h>
 
+/* Utility function which escape characters a & < > ' ".
+ *
+ * If the dest parameter is NULL, then the function returns the length of
+ * of the escaped src string. The dest_length doesn't matter.
+ *
+ * If the dest parameter is not NULL then the fuction escapes the src string
+ * an puts the escaped string in dest and returns the lenght of the escaped string.
+ * The dest_length parameter is the size of dest array. If the size of dest is not
+ * enough, then the function returns -1.
+ */
+int escape_markup_text(const char *src, char *dest, int dest_length);
 PangoLayout *get_pango_layout(cairo_t *cairo, const char *font,
 		const char *text, int32_t scale, bool markup);
 void get_text_size(cairo_t *cairo, const char *font, int *width, int *height,