2 files changed, 9 insertions, 0 deletions
diff --git a/src/internal/ptycon_nolibc_impl.c b/src/internal/ptycon_nolibc_impl.c
index 2319505..c489b98 100644
--- a/src/internal/ptycon_nolibc_impl.c
+++ b/src/internal/ptycon_nolibc_impl.c
@@ -61,6 +61,11 @@ char * ptyc_strrchr(const char * ch, int c)
 	return 0;
 }
 
+int ptyc_isblank(int c)
+{
+	return ((c == 0x20) || (c == 0x09));
+}
+
 #ifdef PTYC_EXPORT
 int __stdcall ptycon_entry_point(void * hinstance, uint32_t reason, void * reserved)
 {
diff --git a/src/internal/ptycon_nolibc_impl.h b/src/internal/ptycon_nolibc_impl.h
index 0c58141..c9caf13 100644
--- a/src/internal/ptycon_nolibc_impl.h
+++ b/src/internal/ptycon_nolibc_impl.h
@@ -16,6 +16,8 @@
 #define strchr   ptyc_strchr
 #define strrchr  ptyc_strrchr
 
+#define isblank  ptyc_isblank
+
 #define calloc	 ptyc_calloc
 #define free	 ptyc_free
 
@@ -35,6 +37,8 @@ int	ptyc_strncmp(const char * a, const char * b, size_t n);
 char *	ptyc_strchr(const char * ch, int c);
 char *	ptyc_strrchr(const char * ch, int c);
 
+int     ptyc_isblank(int c);
+
 void *	ptyc_calloc(size_t n, size_t size);
 void	ptyc_free(void *);