Add print_prompt funtion.

ef.c

@@ -165,10 +165,6 @@ int main(int argc, char **argv)
 	}
 	keypad(prompt, TRUE);
 
-	/* initial prompt */
-	mvwaddstr(prompt, 0, 0, "> ");
-	wrefresh(prompt);
-
 	/* index in entries, index in matched;
 	 * this function could include a wclrtoeol call, but that only hides indexing issues */
 	#define WRITELIST(idx, idxm) \
@@ -188,6 +184,8 @@ int main(int argc, char **argv)
 	char *name = NULL;
 	/* search tokens */
 	struct str_array toks = { 0 };
+	print_prompt(prompt, &toks, true);
+
 	/* index inside set of matches */
 	size_t index_in_matched = 0;
 	for (;;) {
@@ -317,16 +315,9 @@ int main(int argc, char **argv)
 			continue;
 		}
 
-		werase(prompt);
-		mvwaddstr(prompt, 0, 0, ">");
-		for (size_t i = 0; i < toks.n; i++) {
-			const char *e = get_entry(&toks, i);
-			waddch(prompt, ' ');
-			waddstr(prompt, e);
-		}
 		/* show space if name is NULL */
-		if (!name) waddch(prompt, ' ');
-		wrefresh(prompt);
+		print_prompt(prompt, &toks, !name);
+
 		/* name==NULL means the search results won't change,
 		 * so we don't need to search again */
 		if (!name) continue;

util.c

@@ -23,6 +23,19 @@ void read_entries_from_stream(struct str_array *a, int delim, FILE *input)
 	}
 }
 
+void print_prompt(WINDOW *w, struct str_array *a, bool show_space)
+{
+	werase(w);
+	mvwaddstr(w, 0, 0, ">");
+	for (size_t i = 0; i < a->n; i++) {
+		const char *e = get_entry(a, i);
+		waddch(w, ' ');
+		waddstr(w, e);
+	}
+	if (show_space) waddch(w, ' ');
+	wrefresh(w);
+}
+
 void *xmalloc(size_t s) {
 	void *r = malloc(s);
 	if (r) return r;

util.h

@@ -1,11 +1,15 @@
 #ifndef UTIL_H
 #define UTIL_H
 
+#include <stdbool.h>
 #include <stdio.h>
 
+#include <curses.h>
+
 #include "string-array.h"
 
 void read_entries_from_stream(struct str_array *, int, FILE *);
+void print_prompt(WINDOW *, struct str_array *, bool);
 void *xmalloc(size_t);
 void *xrealloc(void *, size_t);