From 7a4f59f638845a2a78d2fd947e297f30d452201f Mon Sep 17 00:00:00 2001
From: Kenneth Myhra <kennethmyhra@gmail.com>
Date: Sat, 24 Jul 2021 21:44:24 +0200
Subject: [PATCH] LibC: Declare wide character type functions in wctype.h

Declares all wide character handling functions in wctype.h. All calls
are forwarded to the corresponding character handling function in
ctype.h.

These functions are declared, but not implemented:
- iswctype
- wctype
- towctrans
- wctrans

This should also resolve a build issue with the 'sed' port getting
confused with iswprint being declared twice. Seems like it expected
more functions from wctype.h and then had a backup strategy of adding
its own wctype.h.
---
 Userland/Libraries/LibC/wctype.cpp | 88 +++++++++++++++++++++++++++---
 Userland/Libraries/LibC/wctype.h   | 24 +++++++-
 2 files changed, 103 insertions(+), 9 deletions(-)

diff --git a/Userland/Libraries/LibC/wctype.cpp b/Userland/Libraries/LibC/wctype.cpp
index 550c435e84c..f2c427dfd72 100644
--- a/Userland/Libraries/LibC/wctype.cpp
+++ b/Userland/Libraries/LibC/wctype.cpp
@@ -4,16 +4,68 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/Format.h>
-#include <assert.h>
 #include <wctype.h>
 
 extern "C" {
 
-wctype_t wctype(const char*)
+int iswalnum(wint_t wc)
 {
-    dbgln("FIXME: Implement wctype()");
-    TODO();
+    return __inline_isalnum(wc);
+}
+
+int iswalpha(wint_t wc)
+{
+    return __inline_isalpha(wc);
+}
+
+int iswcntrl(wint_t wc)
+{
+    return __inline_iscntrl(wc);
+}
+
+int iswdigit(wint_t wc)
+{
+    return __inline_isdigit(wc);
+}
+
+int iswxdigit(wint_t wc)
+{
+    return __inline_isxdigit(wc);
+}
+
+int iswspace(wint_t wc)
+{
+    return __inline_isspace(wc);
+}
+
+int iswpunct(wint_t wc)
+{
+    return __inline_ispunct(wc);
+}
+
+int iswprint(wint_t wc)
+{
+    return __inline_isprint(wc);
+}
+
+int iswgraph(wint_t wc)
+{
+    return __inline_isgraph(wc);
+}
+
+int iswlower(wint_t wc)
+{
+    return __inline_islower(wc);
+}
+
+int iswupper(wint_t wc)
+{
+    return __inline_isupper(wc);
+}
+
+int iswblank(wint_t wc)
+{
+    return __inline_isblank(wc);
 }
 
 int iswctype(wint_t, wctype_t)
@@ -22,9 +74,31 @@ int iswctype(wint_t, wctype_t)
     TODO();
 }
 
-int iswprint(wint_t)
+wctype_t wctype(const char*)
 {
-    dbgln("FIXME: Implement iswprint()");
+    dbgln("FIXME: Implement wctype()");
+    TODO();
+}
+
+wint_t towlower(wint_t wc)
+{
+    return __inline_tolower(wc);
+}
+
+wint_t towupper(wint_t wc)
+{
+    return __inline_toupper(wc);
+}
+
+wint_t towctrans(wint_t, wctrans_t)
+{
+    dbgln("FIXME: Implement towctrans()");
+    TODO();
+}
+
+wctrans_t wctrans(const char*)
+{
+    dbgln("FIXME: Implement wctrans()");
     TODO();
 }
 }
diff --git a/Userland/Libraries/LibC/wctype.h b/Userland/Libraries/LibC/wctype.h
index e3f5784bed7..5532932359b 100644
--- a/Userland/Libraries/LibC/wctype.h
+++ b/Userland/Libraries/LibC/wctype.h
@@ -6,12 +6,32 @@
 
 #pragma once
 
+#include <AK/Format.h>
+#include <assert.h>
+#include <ctype.h>
 #include <wchar.h>
 
 __BEGIN_DECLS
 
-wctype_t wctype(const char* name);
-int iswctype(wint_t wc, wctype_t desc);
+typedef const int* wctrans_t;
+
+int iswalnum(wint_t wc);
+int iswalpha(wint_t wc);
+int iswcntrl(wint_t wc);
+int iswdigit(wint_t wc);
+int iswxdigit(wint_t wc);
+int iswspace(wint_t wc);
+int iswpunct(wint_t wc);
 int iswprint(wint_t wc);
+int iswgraph(wint_t wc);
+int iswlower(wint_t wc);
+int iswupper(wint_t wc);
+int iswblank(wint_t wc);
+int iswctype(wint_t, wctype_t);
+wctype_t wctype(const char*);
+wint_t towlower(wint_t wc);
+wint_t towupper(wint_t wc);
+wint_t towctrans(wint_t, wctrans_t);
+wctrans_t wctrans(const char*);
 
 __END_DECLS