localedata: Translit common emojis to smileys [BZ #30649]

Add common emojis to the translit-able characters (mostly
faces and hearts), and translit them to old-fashioned
smileys.

Signed-off-by: Colin Leroy-Mira <colin@colino.net>
Reviewed-by: Florian Weimer <fweimer@redhat.com>

4 files changed, 213 insertions, 0 deletions

diff --git a/localedata/Makefile b/localedata/Makefile
index 3619b6d47e..dd41db6d8f 100644
--- a/localedata/Makefile
+++ b/localedata/Makefile
@@ -1,4 +1,5 @@
 # Copyright (C) 1996-2023 Free Software Foundation, Inc.
+# Copyright The GNU Toolchain Authors.
 # This file is part of the GNU C Library.
 
 # The GNU C Library is free software; you can redistribute it and/or
@@ -164,6 +165,7 @@ tests = \
   bug-usesetlocale \
   tst-c-utf8-consistency \
   tst-digits \
+  tst-iconv-emojis-trans \
   tst-iconv-math-trans \
   tst-leaks \
   tst-mbswcs1 \
@@ -320,6 +322,8 @@ LOCALES := \
 
 include ../gen-locales.mk
 
+$(objpfx)tst-iconv-emojis-trans.out: $(gen-locales)
+
 $(objpfx)tst-iconv-math-trans.out: $(gen-locales)
 endif
 
diff --git a/localedata/locales/translit_emojis b/localedata/locales/translit_emojis
new file mode 100644
index 0000000000..cfb1964afa
--- /dev/null
+++ b/localedata/locales/translit_emojis
@@ -0,0 +1,91 @@
+escape_char /
+comment_char %
+
+% This file is part of the GNU C Library and contains locale data.
+% The Free Software Foundation and the GNU Toolchain Authors do not
+% claim any copyright interest in the locale data contained in this
+% file.  The foregoing does not affect the license of the GNU C
+% Library as a whole.  It does not exempt you from the conditions
+% of the license if your use would otherwise be governed by that
+% license.
+
+% Transliterations of emojis to ASCII smileys.
+
+LC_CTYPE
+
+translit_start
+
+♡ "/<3" % WHITE HEART SUIT
+♥ "/<3" % BLACK HEART SUIT
+❤ "/<3" % HEAVY BLACK HEART
+💙 "/<3" % BLUE HEART
+💓 "/<3" % BEATING HEART
+💔 "/<//3" % BROKEN HEART
+💖 "/<3" % SPARKLING HEART
+💗 "/<3" % GROWING HEART
+💚 "/<3" % GREEN HEART
+💛 "/<3" % YELLOW HEART
+💜 "/<3" % PURPLE HEART
+🖤 "/<3" % BLACK HEART
+🧡 "/<3" % ORANGE HEART
+🤍 "/<3" % WHITE HEART
+🤎 "/<3" % BROWN HEART
+😀 ":-D" % GRINNING FACE
+😁 ":-D" % GRINNING FACE WITH SMILING EYES
+😂 ":'D" % FACE WITH TEARS OF JOY
+😃 ":-D" % SMILING FACE WITH OPEN MOUTH (C.F. ☺)
+😄 ":-D" % SMILING FACE WITH OPEN MOUTH AND SMILING EYES
+😅 ":-D" % SMILING FACE WITH OPEN MOUTH AND COLD SWEAT
+😆 ":-D" % SMILING FACE WITH OPEN MOUTH AND TIGHTLY-CLOSED EYES
+😇 "O:-)" % SMILING FACE WITH HALO
+😈 "/>:)" % SMILING FACE WITH HORNS
+😉 ";-)" % WINKING FACE
+😊 ":-)" % SMILING FACE WITH SMILING EYES
+😋 ":-P" % FACE SAVOURING DELICIOUS FOOD
+😌 ":-)" % RELIEVED FACE
+😍 ":-*" % SMILING FACE WITH HEART-SHAPED EYES
+😎 "B-)" % SMILING FACE WITH SUNGLASSES
+😏 ";-)" % SMIRKING FACE
+😐 ":-|" % NEUTRAL FACE
+😑 ":-|" % EXPRESSIONLESS FACE
+😒 ":-|" % UNAMUSED FACE
+😓 ":'-|" % FACE WITH COLD SWEAT
+😔 ":-|" % PENSIVE FACE
+😕 ":-//" % CONFUSED FACE
+😖 ":-S" % CONFOUNDED FACE
+😗 ":-*" % KISSING FACE
+😘 ":-*" % FACE THROWING A KISS
+😙 ":-*" % KISSING FACE WITH SMILING EYES
+😚 ":-*" % KISSING FACE WITH CLOSED EYES
+😛 ":-P" % FACE WITH STUCK-OUT TONGUE
+😜 ";-P" % FACE WITH STUCK-OUT TONGUE AND WINKING EYE
+😝 "X-P" % FACE WITH STUCK-OUT TONGUE AND TIGHTLY-CLOSED EYES
+😞 ":-(" % DISAPPOINTED FACE
+😟 ":-(" % WORRIED FACE
+😠 "/>:-(" % ANGRY FACE
+😡 ":-(" % POUTING FACE
+😢 ":'-(" % CRYING FACE
+😣 "X-(" % PERSEVERING FACE
+😦 ":-O" % FROWNING FACE WITH OPEN MOUTH
+😧 ":-O" % ANGUISHED FACE
+😨 ":-O" % FEARFUL FACE
+😩 ":-O" % WEARY FACE
+😭 ":<U0022>-(" % LOUDLY CRYING FACE
+😮 ":-O" % FACE WITH OPEN MOUTH
+😯 ":-O" % HUSHED FACE
+😰 ":'-O" % FACE WITH OPEN MOUTH AND COLD SWEAT
+😱 ":-O" % FACE SCREAMING IN FEAR
+😲 ":-O" % ASTONISHED FACE
+😸 ":-3" % GRINNING CAT FACE WITH SMILING EYES
+😹 ":'-3" % CAT FACE WITH TEARS OF JOY
+😺 ":-3" % SMILING CAT FACE WITH OPEN MOUTH
+😻 ":-3" % SMILING CAT FACE WITH HEART-SHAPE EYES
+😼 ";-3" % CAT FACE WITH WRY SMILE
+😽 ":-3" % KISSING CAT FACE WITH CLOSED EYES
+🙁 ":-(" % SLIGHTLY FROWNING FACE
+🙂 ":-)" % SLIGHTLY SMILING FACE
+🙃 "(-:" % UPSIDE-DOWN FACE
+
+translit_end
+
+END LC_CTYPE
diff --git a/localedata/locales/translit_neutral b/localedata/locales/translit_neutral
index 72f66220b7..57412ae565 100644
--- a/localedata/locales/translit_neutral
+++ b/localedata/locales/translit_neutral
@@ -17,6 +17,7 @@ translit_start
 include "translit_circle";""
 include "translit_cjk_compat";""
 include "translit_compat";""
+include "translit_emojis";""
 include "translit_font";""
 include "translit_fraction";""
 include "translit_narrow";""
diff --git a/localedata/tst-iconv-emojis-trans.c b/localedata/tst-iconv-emojis-trans.c
new file mode 100644
index 0000000000..de4c20a279
--- /dev/null
+++ b/localedata/tst-iconv-emojis-trans.c
@@ -0,0 +1,117 @@
+/* Test some emoji transliterations
+
+   Copyright (C) 2019-2023 Free Software Foundation, Inc.
+   Copyright The GNU Toolchain Authors.
+
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <iconv.h>
+#include <locale.h>
+#include <stdio.h>
+#include <string.h>
+#include <support/check.h>
+
+static int
+do_test (void)
+{
+  iconv_t cd;
+
+  const int num_emojis = 70;
+
+  const char str[] = "♡ ♥ ❤ 💙 💓 "
+                     "💔 💖 💗 💚 💛 "
+                     "💜 🖤 🧡 🤍 🤎 "
+                     "😀 😁 😂 😃 😄 "
+                     "😅 😆 😇 😈 😉 "
+                     "😊 😋 😌 😍 😎 "
+                     "😏 😐 😑 😒 😓 "
+                     "😔 😕 😖 😗 😘 "
+                     "😙 😚 😛 😜 😝 "
+                     "😞 😟 😠 😡 😢 "
+                     "😣 😦 😧 😨 😩 "
+                     "😭 😮 😯 😰 😱 "
+                     "😲 😸 😹 😺 😻 "
+                     "😼 😽 🙁 🙂 🙃";
+
+  const char expected[] = "<3 <3 <3 <3 <3 "
+                          "</3 <3 <3 <3 <3 "
+                          "<3 <3 <3 <3 <3 "
+                          ":-D :-D :'D :-D :-D "
+                          ":-D :-D O:-) >:) ;-) "
+                          ":-) :-P :-) :-* B-) "
+                          ";-) :-| :-| :-| :'-| "
+                          ":-| :-/ :-S :-* :-* "
+                          ":-* :-* :-P ;-P X-P "
+                          ":-( :-( >:-( :-( :'-( "
+                          "X-( :-O :-O :-O :-O "
+                          ":\"-( :-O :-O :'-O :-O "
+                          ":-O :-3 :'-3 :-3 :-3 "
+                          ";-3 :-3 :-( :-) (-:";
+
+  char *inptr = (char *) str;
+  size_t inlen = strlen (str) + 1;
+  char outbuf[500];
+  char *outptr = outbuf;
+  size_t outlen = sizeof (outbuf);
+  int result = 0;
+  size_t n;
+
+  if (setlocale (LC_ALL, "en_US.UTF-8") == NULL)
+    FAIL_EXIT1 ("setlocale failed");
+
+  cd = iconv_open ("ASCII//TRANSLIT", "UTF-8");
+  if (cd == (iconv_t) -1)
+    FAIL_EXIT1 ("iconv_open failed");
+
+  n = iconv (cd, &inptr, &inlen, &outptr, &outlen);
+  if (n != num_emojis)
+    {
+      if (n == (size_t) -1)
+        printf ("iconv() returned error: %m\n");
+      else
+        printf ("iconv() returned %zd, expected %d\n", n, num_emojis);
+      result = 1;
+    }
+  if (inlen != 0)
+    {
+      puts ("not all input consumed");
+      result = 1;
+    }
+  else if (inptr - str != strlen (str) + 1)
+    {
+      printf ("inptr wrong, advanced by %td\n", inptr - str);
+      result = 1;
+    }
+  if (memcmp (outbuf, expected, sizeof (expected)) != 0)
+    {
+      printf ("result wrong: \"%.*s\", expected: \"%s\"\n",
+              (int) (sizeof (outbuf) - outlen), outbuf, expected);
+      result = 1;
+    }
+  else if (outlen != sizeof (outbuf) - sizeof (expected))
+    {
+      printf ("outlen wrong: %zd, expected %zd\n", outlen,
+              sizeof (outbuf) - sizeof (expected));
+      result = 1;
+    }
+  else
+    printf ("output is \"%s\" which is OK\n", outbuf);
+
+  return result;
+}
+
+#include <support/test-driver.c>