selsnap: simplify SNAP_LINE case

[st.git] / st.c

diff --git a/st.c b/st.c
index 6f8d83f..789e795 100644 (file)
--- a/st.c
+++ b/st.c
@@ -453,7 +453,7 @@ static inline bool selected(int, int);
 static char *getsel(void);
 static void selcopy(Time);
 static void selscroll(int, int);
-static void selsnap(int, int *, int *, int);
+static void selsnap(int *, int *, int);
 static int x2col(int);
 static int y2row(int);
 static void getbuttoninfo(XEvent *);
@@ -695,8 +695,8 @@ selnormalize(void) {
        sel.nb.y = MIN(sel.ob.y, sel.oe.y);
        sel.ne.y = MAX(sel.ob.y, sel.oe.y);
 
-       selsnap(sel.snap, &sel.nb.x, &sel.nb.y, -1);
-       selsnap(sel.snap, &sel.ne.x, &sel.ne.y, +1);
+       selsnap(&sel.nb.x, &sel.nb.y, -1);
+       selsnap(&sel.ne.x, &sel.ne.y, +1);
 
        /* expand selection over line breaks */
        if (sel.type == SEL_RECTANGULAR)
@@ -720,12 +720,12 @@ selected(int x, int y) {
 }
 
 void
-selsnap(int mode, int *x, int *y, int direction) {
+selsnap(int *x, int *y, int direction) {
        int newx, newy, xt, yt;
        bool delim, prevdelim;
        Glyph *gp, *prevgp;
 
-       switch(mode) {
+       switch(sel.snap) {
        case SNAP_WORD:
                /*
                 * Snap around if the word wraps around at the end or
@@ -772,15 +772,15 @@ selsnap(int mode, int *x, int *y, int direction) {
                 * previous line will be selected.
                 */
                *x = (direction < 0) ? 0 : term.col - 1;
-               if(direction < 0 && *y > 0) {
+               if(direction < 0) {
                        for(; *y > 0; *y += direction) {
                                if(!(term.line[*y-1][term.col-1].mode
                                                & ATTR_WRAP)) {
                                        break;
                                }
                        }
-               } else if(direction > 0 && *y < term.row-1) {
-                       for(; *y < term.row; *y += direction) {
+               } else if(direction > 0) {
+                       for(; *y < term.row-1; *y += direction) {
                                if(!(term.line[*y][term.col-1].mode
                                                & ATTR_WRAP)) {
                                        break;
@@ -855,12 +855,11 @@ mousereport(XEvent *e) {
        }
 
        if(!IS_SET(MODE_MOUSEX10)) {
-               button += (state & ShiftMask   ? 4  : 0)
-                       + (state & Mod4Mask    ? 8  : 0)
-                       + (state & ControlMask ? 16 : 0);
+               button += ((state & ShiftMask  ) ? 4  : 0)
+                       + ((state & Mod4Mask   ) ? 8  : 0)
+                       + ((state & ControlMask) ? 16 : 0);
        }
 
-       len = 0;
        if(IS_SET(MODE_MOUSESGR)) {
                len = snprintf(buf, sizeof(buf), "\033[<%d;%d;%d%c",
                                button, x+1, y+1,
@@ -1239,10 +1238,14 @@ execsh(void) {
 void
 sigchld(int a) {
        int stat, ret;
+       pid_t p;
 
-       if(waitpid(pid, &stat, 0) < 0)
+       if((p = waitpid(pid, &stat, WNOHANG)) < 0)
                die("Waiting for pid %hd failed: %s\n", pid, strerror(errno));
 
+       if(pid != p)
+               return;
+
        ret = WIFEXITED(stat) ? WEXITSTATUS(stat) : EXIT_FAILURE;
        if (ret != EXIT_SUCCESS)
                die("child finished with error '%d'\n", stat);