From 583bcd490a055f013b244a6cd7e6ecb6765260e2 Mon Sep 17 00:00:00 2001
From: katalx
Date: Wed, 28 Jan 2026 20:46:43 -0500
Subject: read stdin into opt array

---
 main.c | 45 +++++++++++++++++++++++++++++++--------------
 ui.c   | 12 ++++++------
 ui.h   |  5 ++++-
 3 files changed, 41 insertions(+), 21 deletions(-)

diff --git a/main.c b/main.c
index 111aeed..e48326b 100644
--- a/main.c
+++ b/main.c
@@ -2,7 +2,9 @@
  * a simple fuzzy-selection menu made with Xlib
  */
 
+#include <err.h>
 #include <stdio.h>
+#include <sys/stat.h>
 
 #define ARENA_IMPL
 #define STR_IMPL
@@ -47,23 +49,39 @@ txt_delete(DynStr *s, int i, int n)
 	return i - n;
 }
 
+int
+read_all(FILE *f, DynStr *out, Arena *a)
+{
+	char buf[256];
+	while (!feof(f)) {
+		size_t n = fread(buf, 1, sizeof buf, f);
+		if (ferror(f)) return -1;
+		DA_APUSH_MULT(out, a, buf, n);
+	}
+	return 0;
+}
+
 int
 main(int argc, char **argv)
 {
 	ui_init(argc, argv);
 
+	Arena a = { 0 };
 	DynStr input = { 0 };
 	int inpi = 0;
 	int seli = 0;
-	Str optv[] = {
-		S("she shit on my thang until i vomit"),
-		S("what"),
-		S("who are you"),
-		S("why are you"),
-		S("where'd you come from")
-	};
-	int optc = sizeof optv / sizeof *optv;
-	if (!optc) goto done;
+
+	UiOpts opt = { 0 };
+	DynStr buf = { 0 };
+	if (read_all(stdin, &buf, &a)) err(1, "stdin");
+	for (Str src = { buf.v, buf.n }; src.n > 0; ) {
+		Cut c = str_cut(src, '\n');
+		DA_APUSH(&opt, &a, c.head);
+		src = c.tail;
+	}
+
+	if (!opt.n) goto done;
+
 	for (UiEvent ev; ui_wait_event(&ev); ) {
 		switch (ev.type) {
 		case UI_KEY_DOWN:
@@ -74,14 +92,14 @@ main(int argc, char **argv)
 				inpi = txt_delete(&input, inpi, 1);
 				goto draw;
 			case UIK_RETURN: {
-				Str o = optv[seli];
+				Str o = opt.v[seli];
 				printf("%.*s\n", (int)o.n, o.s);
 			} goto done;
 			case UIK_DOWN:
-				seli = umod(seli + 1, optc);
+				seli = umod(seli + 1, opt.n);
 				goto draw;
 			case UIK_UP:
-				seli = umod(seli - 1, optc);
+				seli = umod(seli - 1, opt.n);
 				goto draw;
 			case UIK_LEFT:
 				if (inpi > 0) inpi--;
@@ -108,8 +126,7 @@ main(int argc, char **argv)
 				(Str) { input.v, input.n },
 				inpi,
 				seli,
-				optv,
-				optc
+				opt
 			);
 			break;
 		default:
diff --git a/ui.c b/ui.c
index aa3bad6..26bf56a 100644
--- a/ui.c
+++ b/ui.c
@@ -51,7 +51,7 @@ ui_init(int argc, char **argv)
 	XSetBackground(dsp, gc, bg);
 	XSetForeground(dsp, gc, fg);
 
-	XSelectInput(dsp, win, ButtonPressMask | KeyPressMask | ExposureMask);
+	XSelectInput(dsp, win, KeyPressMask | ExposureMask);
 	XMapRaised(dsp, win);
 
 	freg = XLoadFont(dsp, "-*-new century schoolbook-medium-r-*-*-24-*-*-*-*-*-*-*");
@@ -103,7 +103,7 @@ ui_wait_event(UiEvent *e)
 }
 
 void
-ui_draw(Str input, int inpi, int seli, Str *optv, int optc)
+ui_draw(Str input, int inpi, int seli, UiOpts o)
 {
 	XWindowAttributes attr;
 	XClearWindow(dsp, win);
@@ -120,23 +120,23 @@ ui_draw(Str input, int inpi, int seli, Str *optv, int optc)
 	/* draw options */
 
 	XSetFont(dsp, gc, freg);
-	for (int i = 0; i < optc; i++) {
+	for (int i = 0; i < o.n; i++) {
 		if (i == seli) {
 			int w = XTextWidth(XQueryFont(dsp,
 				XGContextFromGC(gc)),
-				optv[i].s, optv[i].n);
+				o.v[i].s, o.v[i].n);
 			XFillRectangle(dsp, win, gc,
 				16, 28 + i * 24 + 8,
 				w, 24);
 			XSetForeground(dsp, gc, bg);
 			XDrawString(dsp, win, gc,
 				16, 48 + i * 24 + 8,
-				optv[i].s, optv[i].n);
+				o.v[i].s, o.v[i].n);
 			XSetForeground(dsp, gc, fg);
 		} else {
 			XDrawString(dsp, win, gc,
 				16, 48 + i * 24 + 8,
-				optv[i].s, optv[i].n);
+				o.v[i].s, o.v[i].n);
 		}
 	}
 }
diff --git a/ui.h b/ui.h
index 25ac537..6c22238 100644
--- a/ui.h
+++ b/ui.h
@@ -2,6 +2,7 @@
 #define UI_H
 
 #include "str.h"
+#include "dynarr.h"
 
 typedef enum {
 	UI_REDRAW,
@@ -37,9 +38,11 @@ typedef struct {
 	};
 } UiEvent;
 
+typedef DYNARR(Str) UiOpts;
+
 void ui_init(int argc, char **argv);
 void ui_fini(void);
-void ui_draw(Str input, int inpi, int seli, Str *optv, int optc);
+void ui_draw(Str input, int inpi, int seli, UiOpts o);
 int ui_wait_event(UiEvent *e);
 
 #endif
-- 
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