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	tex: without arguments, :s repeats the previous substitution - neatvi - [fork] …
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	---
	commit 8d920bf3b193961749c1490708fd135167f74a59
	parent b4991eb46ce9f36f73591c62ef1cf20e4f915b7d
	Author: Ali Gholami Rudi <[email protected]>
	Date: Sat, 13 Feb 2016 21:57:03 +0330

	ex: without arguments, :s repeats the previous substitution

	Diffstat:
	M ex.c \| 16 +++++++++++-----

	1 file changed, 11 insertions(+), 5 deletions(-)
	---
	diff --git a/ex.c b/ex.c
	t@@ -20,6 +20,7 @@ int xdir = +1; /* current direction c…
	int xshape = 1; /* perform letter shaping */
	int xorder = 1; /* change the order of characters */
	char xfindkwd[EXLEN]; /* the last searched keyword */
	+char xfindrep[EXLEN]; /* the last replacement */
	int xfinddir = +1; /* the last search direction */
	static char xkmap = "en"; / the current keymap */
	static char xkmap2[8] = "fa"; /* the alternate keymap */
	t@@ -634,7 +635,7 @@ static int ec_substitute(char *ec)
	int offs[32];
	int beg, end;
	char *pats[1];
	- char pat, rep;
	+ char pat = NULL, rep = NULL;
	char *s;
	int i;
	ex_loc(ec, loc);
	t@@ -642,10 +643,15 @@ static int ec_substitute(char *ec)
	return 1;
	s = ex_argeol(ec);
	pat = re_read(&s);
	- s--;
	- rep = re_read(&s);
	- if (pat[0])
	+ if (pat && pat[0])
	snprintf(xfindkwd, sizeof(xfindkwd), "%s", pat);
	+ if (pat && *s) {
	+ s--;
	+ rep = re_read(&s);
	+ }
	+ if (!rep)
	+ rep = uc_dup(pat ? "" : xfindrep);
	+ snprintf(xfindrep, sizeof(xfindrep), "%s", rep);
	free(pat);
	pats[0] = xfindkwd;
	re = rset_make(1, pats, xic ? RE_ICASE : 0);
	t@@ -742,7 +748,7 @@ static int ec_glob(char *ec)
	not = strchr(cmd, '!') \|\| cmd[0] == 'v';
	s = ex_argeol(ec);
	pat = re_read(&s);
	- if (pat[0])
	+ if (pat && pat[0])
	snprintf(xfindkwd, sizeof(xfindkwd), "%s", pat);
	free(pat);
	pats[0] = xfindkwd;