commit cf332a325dafe7e9ed6d87df9dcec29149c5042c
from: Roberto E. Vargas Caballero <k0ga@shike2.com>
date: Thu Mar  6 06:50:34 2014 UTC

Add MC for a single line

This sequence print the current line. It is different to the
'printer on' sequence, where all the characters that arrive to the
terminal are printer. Here only the ascii characters are printed.

commit - 1f0d981bd7a1450ddfae3591c6e457253b3a6842
commit + cf332a325dafe7e9ed6d87df9dcec29149c5042c
blob - 314bf3fe90025a0ed9969f7e3cc394447f8f317c
blob + e60643c85cad9aeed391d4a528a7c6c382327ea2
--- st.c
+++ st.c
@@ -356,6 +356,8 @@ static void strparse(void);
 static void strreset(void);
 
 static int tattrset(int);
+static void tprinter(char *s, size_t len);
+static void tdumpline(int);
 static void tclearregion(int, int, int, int);
 static void tcursor(int);
 static void tdeletechar(int);
@@ -470,7 +472,7 @@ static STREscape strescseq;
 static int cmdfd;
 static pid_t pid;
 static Selection sel;
-static int iofd;
+static int iofd = STDOUT_FILENO;
 static char **opt_cmd = NULL;
 static char *opt_io = NULL;
 static char *opt_title = NULL;
@@ -1985,6 +1987,8 @@ csihandle(void) {
 		switch(csiescseq.arg[0]) {
 		case 0:
 		case 1:
+			tdumpline(term.c.y);
+			break;
 		case 4:
 			term.mode &= ~MODE_PRINT;
 			break;
@@ -2266,6 +2270,31 @@ strreset(void) {
 }
 
 void
+tprinter(char *s, size_t len) {
+	if(iofd != -1 && xwrite(iofd, s, len) < 0) {
+		fprintf(stderr, "Error writing in %s:%s\n",
+			opt_io, strerror(errno));
+		close(iofd);
+		iofd = -1;
+	}
+}
+
+void
+tdumpline(int n) {
+	Glyph *bp, *end;
+
+	bp = &term.line[n][0];
+	end = &bp[term.col-1];
+	while(end > bp && !strcmp(" ", end->c))
+		--end;
+	if(bp != end || strcmp(bp->c, " ")) {
+		for( ;bp <= end; ++bp)
+			tprinter(bp->c, strlen(bp->c));
+	}
+	tprinter("\n", 1);
+}
+
+void
 tputtab(bool forward) {
 	uint x = term.c.x;
 
@@ -2346,14 +2375,8 @@ tputc(char *c, int len) {
 		width = wcwidth(u8char);
 	}
 
-	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));
-			close(iofd);
-			iofd = -1;
-		}
-	}
+	if(IS_SET(MODE_PRINT))
+		tprinter(c, len);
 
 	/*
 	 * STR sequences must be checked before anything else