Better comments for the snapping code.

diff --git a/st.c b/st.c
index 533fb0a..d73aaa1 100644 (file)
--- 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) {