Better comments for the snapping code.

1 files changed, 9 insertions, 0 deletions

diff --git a/st.c b/st.c
index 533fb0a..d73aaa1 100644
--- a/st.c
+++ b/st.c
@@ -681,6 +681,10 @@ void
 selsnap(int mode, int *x, int *y, int direction) {
         switch(mode) {
         case SNAP_WORD:
+                /*
+                 * Snap around if the word wraps around at the end or
+                 * beginning of a line.
+                 */
                 for(;;) {
                         if(direction < 0 && *x <= 0) {
                                 if(*y > 0 && term.line[*y - 1][term.col-1].mode
@@ -708,6 +712,11 @@ selsnap(int mode, int *x, int *y, int direction) {
                 }
                 break;
         case SNAP_LINE:
+                /*
+                 * Snap around if the the previous line or the current one
+                 * has set ATTR_WRAP at its end. Then the whole next or
+                 * previous line will be selected.
+                 */
                 *x = (direction < 0) ? 0 : term.col - 1;
                 if(direction < 0 && *y > 0) {
                         for(; *y > 0; *y += direction) {