Use xwrite instead of write.

[st.git] / st.c

diff --git a/st.c b/st.c
index 1a2b1dd..f91eb8d 100644 (file)
--- a/st.c
+++ b/st.c
@@ -375,7 +375,7 @@ static void tmoveto(int, int);
 static void tmoveato(int, int);
 static void tnew(int, int);
 static void tnewline(int);
-static void tputtab(bool);
+static void tputtab(int);
 static void tputc(char *, int);
 static void treset(void);
 static int tresize(int, int);
@@ -452,7 +452,7 @@ static char utf8encodebyte(long, size_t);
 static size_t utf8len(char *);
 static size_t utf8validate(long *, size_t);
 
-static ssize_t xwrite(int, char *, size_t);
+static ssize_t xwrite(int, const char *, size_t);
 static void *xmalloc(size_t);
 static void *xrealloc(void *, size_t);
 static char *xstrdup(char *);
@@ -518,7 +518,7 @@ static Fontcache frc[16];
 static int frclen = 0;
 
 ssize_t
-xwrite(int fd, char *s, size_t len) {
+xwrite(int fd, const char *s, size_t len) {
        size_t aux = len;
 
        while(len > 0) {
@@ -992,7 +992,7 @@ selnotify(XEvent *e) {
                }
 
                /*
-                * As seen in selcopy:
+                * As seen in getsel:
                 * Line endings are inconsistent in the terminal and GUI world
                 * copy and pasting. When receiving some selection data,
                 * replace all '\n' with '\r'.
@@ -1270,7 +1270,7 @@ ttyread(void) {
 
 void
 ttywrite(const char *s, size_t n) {
-       if(write(cmdfd, s, n) == -1)
+       if(xwrite(cmdfd, s, n) == -1)
                die("write error on tty: %s\n", strerror(errno));
 }
 
@@ -1781,7 +1781,6 @@ tsetmode(bool priv, bool set, int *args, int narg) {
        for(lim = args + narg; args < lim; ++args) {
                if(priv) {
                        switch(*args) {
-                               break;
                        case 1: /* DECCKM -- Cursor key */
                                MODBIT(term.mode, set, MODE_APPCURSOR);
                                break;
@@ -1996,8 +1995,7 @@ csihandle(void) {
                break;
        case 'I': /* CHT -- Cursor Forward Tabulation <n> tab stops */
                DEFAULT(csiescseq.arg[0], 1);
-               while(csiescseq.arg[0]--)
-                       tputtab(1);
+               tputtab(csiescseq.arg[0]);
                break;
        case 'J': /* ED -- Clear screen */
                selclear(NULL);
@@ -2065,8 +2063,7 @@ csihandle(void) {
                break;
        case 'Z': /* CBT -- Cursor Backward Tabulation <n> tab stops */
                DEFAULT(csiescseq.arg[0], 1);
-               while(csiescseq.arg[0]--)
-                       tputtab(0);
+               tputtab(-csiescseq.arg[0]);
                break;
        case 'd': /* VPA -- Move to <row> */
                DEFAULT(csiescseq.arg[0], 1);
@@ -2281,19 +2278,17 @@ tdump(void) {
 }
 
 void
-tputtab(bool forward) {
+tputtab(int n) {
        uint x = term.c.x;
 
-       if(forward) {
-               if(x == term.col)
-                       return;
-               for(++x; x < term.col && !term.tabs[x]; ++x)
-                       /* nothing */ ;
-       } else {
-               if(x == 0)
-                       return;
-               for(--x; x > 0 && !term.tabs[x]; --x)
-                       /* nothing */ ;
+       if(n > 0) {
+               while(x < term.col && n--)
+                       for(++x; x < term.col && !term.tabs[x]; ++x)
+                               /* nothing */ ;
+       } else if(n < 0) {
+               while(x > 0 && n++)
+                       for(--x; x > 0 && !term.tabs[x]; --x)
+                               /* nothing */ ;
        }
        tmoveto(x, term.c.y);
 }
@@ -2678,7 +2673,9 @@ tresize(int col, int row) {
                if(0 < col && minrow < row) {
                        tclearregion(0, minrow, col - 1, row - 1);
                }
+               tcursor(CURSOR_SAVE);
                tswapscreen();
+               tcursor(CURSOR_LOAD);
        } while(orig != term.line);
 
        return (slide > 0);
@@ -3457,7 +3454,7 @@ drawregion(int x1, int y1, int x2, int y2) {
        bool ena_sel = sel.ob.x != -1;
        long unicodep;
 
-       if(sel.alt ^ IS_SET(MODE_ALTSCREEN))
+       if(sel.alt != IS_SET(MODE_ALTSCREEN))
                ena_sel = 0;
 
        if(!(xw.state & WIN_VISIBLE))