patch 8.1.1510: a plugin cannot easily expand a command like done internally
Problem: A plugin cannot easily expand a command like done internally.
Solution: Add the expandcmd() function. (Yegappan Lakshmanan, closes #4514)
diff --git a/src/evalfunc.c b/src/evalfunc.c
index 4297379..2d8bf52 100644
--- a/src/evalfunc.c
+++ b/src/evalfunc.c
@@ -149,6 +149,7 @@
static void f_exp(typval_T *argvars, typval_T *rettv);
#endif
static void f_expand(typval_T *argvars, typval_T *rettv);
+static void f_expandcmd(typval_T *argvars, typval_T *rettv);
static void f_extend(typval_T *argvars, typval_T *rettv);
static void f_feedkeys(typval_T *argvars, typval_T *rettv);
static void f_filereadable(typval_T *argvars, typval_T *rettv);
@@ -646,6 +647,7 @@
{"exp", 1, 1, f_exp},
#endif
{"expand", 1, 3, f_expand},
+ {"expandcmd", 1, 1, f_expandcmd},
{"extend", 2, 3, f_extend},
{"feedkeys", 1, 2, f_feedkeys},
{"file_readable", 1, 1, f_filereadable}, /* obsolete */
@@ -3791,6 +3793,35 @@
}
/*
+ * "expandcmd()" function
+ * Expand all the special characters in a command string.
+ */
+ static void
+f_expandcmd(typval_T *argvars, typval_T *rettv)
+{
+ exarg_T eap;
+ char_u *cmdstr;
+ char *errormsg = NULL;
+
+ rettv->v_type = VAR_STRING;
+ cmdstr = vim_strsave(tv_get_string(&argvars[0]));
+
+ memset(&eap, 0, sizeof(eap));
+ eap.cmd = cmdstr;
+ eap.arg = cmdstr;
+ eap.argt |= NOSPC;
+ eap.usefilter = FALSE;
+ eap.nextcmd = NULL;
+ eap.cmdidx = CMD_USER;
+
+ expand_filename(&eap, &cmdstr, &errormsg);
+ if (errormsg != NULL && *errormsg != NUL)
+ emsg(errormsg);
+
+ rettv->vval.v_string = cmdstr;
+}
+
+/*
* "extend(list, list [, idx])" function
* "extend(dict, dict [, action])" function
*/