Add MC sequence

This sequence control when the printer is enabled or disabled. This
sequence control the behaviour of the -o option.

1 files changed, 16 insertions, 2 deletions

diff --git a/st.c b/st.c
index cad61bf..314bf3f 100644
--- a/st.c
+++ b/st.c
@@ -134,6 +134,7 @@ enum term_mode {
         MODE_MOUSEX10    = 131072,
         MODE_MOUSEMANY   = 262144,
         MODE_BRCKTPASTE  = 524288,
+        MODE_PRINT       = 1048576,
         MODE_MOUSE       = MODE_MOUSEBTN|MODE_MOUSEMOTION|MODE_MOUSEX10\
                           |MODE_MOUSEMANY,
 };
@@ -469,7 +470,7 @@ static STREscape strescseq;
 static int cmdfd;
 static pid_t pid;
 static Selection sel;
-static int iofd = -1;
+static int iofd;
 static char **opt_cmd = NULL;
 static char *opt_io = NULL;
 static char *opt_title = NULL;
@@ -1256,6 +1257,7 @@ ttynew(void) {
                 cmdfd = m;
                 signal(SIGCHLD, sigchld);
                 if(opt_io) {
+                        term.mode |= MODE_PRINT;
                         iofd = (!strcmp(opt_io, "-")) ?
                                   STDOUT_FILENO :
                                   open(opt_io, O_WRONLY | O_CREAT, 0666);
@@ -1979,6 +1981,18 @@ csihandle(void) {
                 DEFAULT(csiescseq.arg[0], 1);
                 tmoveto(term.c.x, term.c.y+csiescseq.arg[0]);
                 break;
+        case 'i': /* MC -- Media Copy */
+                switch(csiescseq.arg[0]) {
+                case 0:
+                case 1:
+                case 4:
+                        term.mode &= ~MODE_PRINT;
+                        break;
+                case 5:
+                        term.mode |= MODE_PRINT;
+                        break;
+                }
+                break;
         case 'c': /* DA -- Device Attributes */
                 if(csiescseq.arg[0] == 0)
                         ttywrite(VT102ID, sizeof(VT102ID) - 1);
@@ -2332,7 +2346,7 @@ tputc(char *c, int len) {
                 width = wcwidth(u8char);
         }
 
-        if(iofd != -1) {
+        if(IS_SET(MODE_PRINT) && iofd != -1) {
                 if(xwrite(iofd, c, len) < 0) {
                         fprintf(stderr, "Error writing in %s:%s\n",
                                 opt_io, strerror(errno));