Change the behavior of word snapping on delimiters

This makes any sequence of identical delimiters be considered a single
word in word-snapping mode. This seems more coherent for this mode and
is similar to what xterm does.

Signed-off-by: Roberto E. Vargas Caballero <k0ga@shike2.com>

diff --git a/st.c b/st.c
index 01ab962..497885b 100644 (file)
--- a/st.c
+++ b/st.c
@@ -709,7 +709,8 @@ selected(int x, int y) {
 void
 selsnap(int mode, int *x, int *y, int direction) {
        int newx, newy, xt, yt;
-       Glyph *gp;
+       bool delim, prevdelim;
+       Glyph *gp, *prevgp;
 
        switch(mode) {
        case SNAP_WORD:
@@ -717,6 +718,8 @@ selsnap(int mode, int *x, int *y, int direction) {
                 * Snap around if the word wraps around at the end or
                 * beginning of a line.
                 */
+               prevgp = &term.line[*y][*x];
+               prevdelim = strchr(worddelimiters, prevgp->c[0]) != NULL;
                for(;;) {
                        newx = *x + direction;
                        newy = *y;
@@ -738,11 +741,15 @@ selsnap(int mode, int *x, int *y, int direction) {
                                break;
 
                        gp = &term.line[newy][newx];
-                       if (!(gp->mode & ATTR_WDUMMY) && strchr(worddelimiters, gp->c[0]))
+                       delim = strchr(worddelimiters, gp->c[0]) != NULL;
+                       if(!(gp->mode & ATTR_WDUMMY) && (delim != prevdelim
+                                       || (delim && gp->c[0] != prevgp->c[0])))
                                break;
 
                        *x = newx;
                        *y = newy;
+                       prevgp = gp;
+                       prevdelim = delim;
                }
                break;
        case SNAP_LINE: