st

fork of suckless's simple terminal
Index Commits Files Refs README LICENSE
commit a984ffc4cb755c6dcdbc153b2591dca0ae6a8ead
parent cfefa054e80afa22d6948bf997a6818e778801f6
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Mon,  3 Sep 2012 21:52:21 +0200

Add write I/O to file

This is a theorical feature listed in http://st.suckless.org/goals. All the
input/output of the terminal will be written to a file, which can be very
useful for debugging, and also allow interconnect st to other process
through named pipes.
---
 st.1 |    6 ++++++
 st.c |   14 +++++++++++++-
 2 files changed, 19 insertions(+), 1 deletion(-)
Diffstat:
Mst.1 | 6++++++
Mst.c | 14+++++++++++++-
2 files changed, 19 insertions(+), 1 deletion(-)
diff --git a/st.1 b/st.1
@@ -10,6 +10,8 @@ st \- simple terminal
 .RB [ \-w 
 .IR windowid ]
 .RB [ \-v ]
+.RB [ \-f
+.IR file ]
 .RB [ \-e
 .IR command ...]
 .SH DESCRIPTION
@@ -30,6 +32,10 @@ embeds st within the window identified by
 .B \-v
 prints version information to stderr, then exits.
 .TP
+.BI \-f " file"
+writes all the I/O to
+.I file
+.TP
 .BI \-e " program " [ " arguments " "... ]"
 st executes
 .I program
diff --git a/st.c b/st.c
@@ -36,7 +36,7 @@
 
 #define USAGE \
     "st " VERSION " (c) 2010-2012 st engineers\n" \
-    "usage: st [-t title] [-c class] [-w windowid] [-v] [-e command...]\n"
+    "usage: st [-t title] [-c class] [-w windowid] [-v] [-f file] [-e command...]\n"
 
 /* XEMBED messages */
 #define XEMBED_FOCUS_IN  4
@@ -342,7 +342,9 @@ static STREscape strescseq;
 static int cmdfd;
 static pid_t pid;
 static Selection sel;
+static FILE *fileio;
 static char **opt_cmd  = NULL;
+static char *opt_io    = NULL;
 static char *opt_title = NULL;
 static char *opt_embed = NULL;
 static char *opt_class = NULL;
@@ -776,6 +778,10 @@ ttynew(void) {
         close(s);
         cmdfd = m;
         signal(SIGCHLD, sigchld);
+        if (opt_io && !(fileio = fopen(opt_io, "w"))) {
+            fprintf(stderr, "Error opening %s:%s",
+                opt_io, strerror(errno));
+        }
     }
 }
 
@@ -1534,6 +1540,9 @@ tputtab(bool forward) {
 void
 tputc(char *c) {
     char ascii = *c;
+
+    if (fileio)
+        putc(ascii, fileio);
     if(term.esc & ESC_START) {
         if(term.esc & ESC_CSI) {
             csiescseq.buf[csiescseq.len++] = ascii;
@@ -2269,6 +2278,9 @@ main(int argc, char *argv[]) {
         case 'w':
             if(++i < argc) opt_embed = argv[i];
             break;
+        case 'f':
+            if (++i < argc) opt_io = argv[i];
+            break;
         case 'e':
             /* eat every remaining arguments */
             if(++i < argc) opt_cmd = &argv[i];