From 40d2ebc64eb114ec6aa4bb1c621a4ce8930b2c47 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C4=90o=C3=A0n=20Tr=E1=BA=A7n=20C=C3=B4ng=20Danh?=
 <congdanhqx@gmail.com>
Date: Tue, 23 Jul 2024 17:20:08 +0700
Subject: [PATCH] cmatrix: fix Japanese

---
 ...1-Fix-unicode-character-printing-112.patch | 88 +++++++++++++++++++
 srcpkgs/cmatrix/template                      |  4 +
 2 files changed, 92 insertions(+)
 create mode 100644 srcpkgs/cmatrix/patches/0001-Fix-unicode-character-printing-112.patch

diff --git a/srcpkgs/cmatrix/patches/0001-Fix-unicode-character-printing-112.patch b/srcpkgs/cmatrix/patches/0001-Fix-unicode-character-printing-112.patch
new file mode 100644
index 00000000000..db58a843599
--- /dev/null
+++ b/srcpkgs/cmatrix/patches/0001-Fix-unicode-character-printing-112.patch
@@ -0,0 +1,88 @@
+From: patatahooligan <filwn.oikonomou@gmail.com>
+Date: Thu, 20 Oct 2022 07:23:15 +0300
+Subject: [PATCH] Fix unicode character printing (#112)
+
+* Fix unicode character printing
+
+Fix several issues that prevented it from working
+
+  * link to the wide-character version of ncurses
+  * define NCURSES_WIDECHAR
+  * use a function that can print wide characters
+  * fix the character range. I don't know what the original was supposed
+    to be, but half-width kana (which is what the movie reportedly used)
+    was not at that range.
+
+* Fix half-width kana character range
+
+I'm not very familiar with katakana, but I think the extra characters I
+was using are punctuation or other marks. So let's remove them. Note
+that this is the same range space-pagan is using.
+
+(cherry picked from commit 7647b4774c72a0803b36d89ece4edd95f5dbb97f)
+---
+ CMakeLists.txt |  1 +
+ cmatrix.c      | 24 +++++++++++++++++++-----
+ 2 files changed, 20 insertions(+), 5 deletions(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index c5548b3..056ccec 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -35,6 +35,7 @@ if	(HAVE_TERMIO_H)
+ endif	()
+ 
+ Set(CURSES_NEED_NCURSES TRUE)
++Set(CURSES_NEED_WIDE TRUE)
+ find_package(Curses)
+ include_directories(${CURSES_INCLUDE_DIR})
+ add_definitions(-DHAVE_NCURSES_H)
+diff --git a/cmatrix.c b/cmatrix.c
+index 90284cb..d4f8ab1 100644
+--- a/cmatrix.c
++++ b/cmatrix.c
+@@ -21,6 +21,9 @@
+ 
+ */
+ 
++#define NCURSES_WIDECHAR 1
++
++#include <errno.h>
+ #include <stdio.h>
+ #include <stdlib.h>
+ #include <stdarg.h>
+@@ -435,10 +438,13 @@ if (console) {
+     }
+ 
+     /* Set up values for random number generation */
+-    if(classic) {
+-        /* Japanese character unicode range [they are seen in the original cmatrix] */
+-        randmin = 12288;
+-        highnum = 12351;
++    if (classic) {
++        /* Half-width kana characters. In the movie they are y-axis flipped, and
++         * they appear alongside latin characters and numerals, but this is the
++         * closest we can do with a standard unicode set and a single number
++         * range */
++        randmin = 0xff66;
++        highnum = 0xff9d;
+     } else if (console || xwindow) {
+         randmin = 166;
+         highnum = 217;
+@@ -739,7 +745,15 @@ if (console) {
+                         } else if (lambda && matrix[i][j].val != ' ') {
+                             addstr("λ");
+                         } else {
+-                            addch(matrix[i][j].val);
++                            /* addch doesn't seem to work with unicode
++                             * characters and there was no direct equivalent.
++                             * So, construct a c-style string with the character
++                             * and print that.
++                             */
++                            wchar_t char_array[2];
++                            char_array[0] = matrix[i][j].val;
++                            char_array[1] = 0;
++                            addwstr(char_array);
+                         }
+                         if (bold == 2 ||
+                             (bold == 1 && matrix[i][j].val % 2 == 0)) {
diff --git a/srcpkgs/cmatrix/template b/srcpkgs/cmatrix/template
index facfa4c3b2f..2682869f62f 100644
--- a/srcpkgs/cmatrix/template
+++ b/srcpkgs/cmatrix/template
@@ -11,3 +11,7 @@ license="GPL-2.0-or-later"
 homepage="https://github.com/abishekvashok/cmatrix"
 distfiles="https://github.com/abishekvashok/cmatrix/archive/v${version}.tar.gz"
 checksum=ad93ba39acd383696ab6a9ebbed1259ecf2d3cf9f49d6b97038c66f80749e99a
+
+post_install() {
+	vman cmatrix.1
+}