ed

commit f3783089b8859be798df289b9cd75b604d8050a8
parent 3a265e90269f21d447251c7f305787f5da071b44
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Thu, 10 Dec 2015 17:25:18 +0100

Save the content of full previous command line

This is needed for '&' command, because it can
reference the current line, and the previous
solution based in static variables for
line1 and line2 was wrong.

Diffstat:
M
ed.c
 | 
33
+++++++++++++++++++++------------

1 file changed, 21 insertions(+), 12 deletions(-)
diff --git a/ed.c b/ed.c
@@ -42,6 +42,8 @@ size_t sizetxt, memtxt;
 int scratch;
 int pflag, modflag, uflag;
 size_t csize;
+char *cmd;
+size_t cmdsiz, cmdcap;
 
 static void
 error(char *msg)
@@ -55,18 +57,6 @@ error(char *msg)
 }
 
 static int
-input(void)
-{
-	return getchar();
-}
-
-static int
-back(int c)
-{
-	return ungetc(c, stdin);
-}
-
-static int
 nextln(int line)
 {
 	++line;
@@ -96,6 +86,24 @@ addchar(char c, char *t, size_t *capacity, size_t *size)
 }
 
 static int
+input(void)
+{
+	int c;
+
+	if ((c = getchar()) != EOF)
+		cmd = addchar(c, cmd, &cmdcap, &cmdsiz);
+	return c;
+}
+
+static int
+back(int c)
+{
+	ungetc(c, stdin);
+	--cmdsiz;
+	return c;
+}
+
+static int
 makeline(char *s, int *off)
 {
 	struct hline *lp;
@@ -1057,6 +1065,7 @@ main(int argc, char *argv[])
 	}
 
 	for (;;) {
+		cmdsiz = 0;
 		if (optprompt)
 			fputs(prompt, stdout);
 		getlst();