1 files changed, 30 insertions, 1 deletions

diff --git a/st.c b/st.c
index ce32cc0..f46aab6 100644
--- a/st.c
+++ b/st.c
@@ -36,6 +36,7 @@
 
 /* Arbitrary sizes */
 #define UTF_INVALID   0xFFFD
+#define UTF_SIZ       4
 #define ESC_BUF_SIZ   (128*UTF_SIZ)
 #define ESC_ARG_SIZ   16
 #define STR_BUF_SIZ   ESC_BUF_SIZ
@@ -95,6 +96,31 @@ enum escape_state {
         ESC_DCS        =128,
 };
 
+typedef struct {
+        Glyph attr; /* current char attributes */
+        int x;
+        int y;
+        char state;
+} TCursor;
+
+typedef struct {
+        int mode;
+        int type;
+        int snap;
+        /*
+         * Selection variables:
+         * nb – normalized coordinates of the beginning of the selection
+         * ne – normalized coordinates of the end of the selection
+         * ob – original coordinates of the beginning of the selection
+         * oe – original coordinates of the end of the selection
+         */
+        struct {
+                int x, y;
+        } nb, ne, ob, oe;
+
+        int alt;
+} Selection;
+
 /* Internal representation of the screen */
 typedef struct {
         int row;      /* nb row */
@@ -187,15 +213,18 @@ static void tstrsequence(uchar);
 
 static void drawregion(int, int, int, int);
 
+static void selnormalize(void);
 static void selscroll(int, int);
 static void selsnap(int *, int *, int);
 
+static size_t utf8decode(const char *, Rune *, size_t);
 static Rune utf8decodebyte(char, size_t *);
 static char utf8encodebyte(Rune, size_t);
-static char *utf8strchr(char *s, Rune u);
+static char *utf8strchr(char *, Rune);
 static size_t utf8validate(Rune *, size_t);
 
 static char *base64dec(const char *);
+static char base64dec_getc(const char **);
 
 static ssize_t xwrite(int, const char *, size_t);