ed

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git clone git://git.2f30.org/ed.git
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commit 7b4af7e0476a5ef0427e2f66921dd164052ed06f
parent f7835588a3b9d7411ecbbdbe133191ccec714e50
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Sun Dec 13 20:47:51 +0100

Undo only last command

It is important to discard the undo data of
previous commands, because in other case
undo() will undo all the edit work.

Diffstat:
ed.c | 7+++++++
1 file changed, 7 insertions(+), 0 deletions(-)
diff --git a/ed.c b/ed.c @@ -60,6 +60,7 @@ int repidx; char *rhs; char *lastmatch; struct undo udata; +int newcmd; static void error(char *msg) @@ -230,6 +231,11 @@ relink(int to1, int from1, int from2, int to2) { struct link *p; + if (newcmd) { + free(udata.vec); + udata.vec = NULL; + newcmd = udata.nr = udata.cap = 0; + } if (udata.nr >= udata.cap) { size_t siz = (udata.cap + 10) * sizeof(struct link); if ((p = realloc(udata.vec, siz)) == NULL) @@ -1352,6 +1358,7 @@ main(int argc, char *argv[]) } for (;;) { + newcmd = 1; cmdsiz = 0; repidx = -1; if (optprompt)