Base version of ncurses-5.7 library
diff --git a/form/fty_alpha.c b/form/fty_alpha.c
new file mode 100644
index 0000000..bd49544
--- /dev/null
+++ b/form/fty_alpha.c
@@ -0,0 +1,167 @@
+/****************************************************************************
+ * Copyright (c) 1998-2006,2007 Free Software Foundation, Inc. *
+ * *
+ * Permission is hereby granted, free of charge, to any person obtaining a *
+ * copy of this software and associated documentation files (the *
+ * "Software"), to deal in the Software without restriction, including *
+ * without limitation the rights to use, copy, modify, merge, publish, *
+ * distribute, distribute with modifications, sublicense, and/or sell *
+ * copies of the Software, and to permit persons to whom the Software is *
+ * furnished to do so, subject to the following conditions: *
+ * *
+ * The above copyright notice and this permission notice shall be included *
+ * in all copies or substantial portions of the Software. *
+ * *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
+ * *
+ * Except as contained in this notice, the name(s) of the above copyright *
+ * holders shall not be used in advertising or otherwise to promote the *
+ * sale, use or other dealings in this Software without prior written *
+ * authorization. *
+ ****************************************************************************/
+
+/***************************************************************************
+* *
+* Author : Juergen Pfeifer *
+* *
+***************************************************************************/
+
+#include "form.priv.h"
+
+MODULE_ID("$Id: fty_alpha.c,v 1.23 2007/10/13 19:32:09 tom Exp $")
+
+#define thisARG alphaARG
+
+typedef struct
+ {
+ int width;
+ }
+thisARG;
+
+/*---------------------------------------------------------------------------
+| Facility : libnform
+| Function : static void *Make_This_Type(va_list *ap)
+|
+| Description : Allocate structure for alpha type argument.
+|
+| Return Values : Pointer to argument structure or NULL on error
++--------------------------------------------------------------------------*/
+static void *
+Make_This_Type(va_list *ap)
+{
+ thisARG *argp = typeMalloc(thisARG, 1);
+
+ if (argp)
+ {
+ T((T_CREATE("thisARG %p"), argp));
+ argp->width = va_arg(*ap, int);
+ }
+
+ return ((void *)argp);
+}
+
+/*---------------------------------------------------------------------------
+| Facility : libnform
+| Function : static void *Copy_This_Type(const void * argp)
+|
+| Description : Copy structure for alpha type argument.
+|
+| Return Values : Pointer to argument structure or NULL on error.
++--------------------------------------------------------------------------*/
+static void *
+Copy_This_Type(const void *argp)
+{
+ const thisARG *ap = (const thisARG *)argp;
+ thisARG *result = typeMalloc(thisARG, 1);
+
+ if (result)
+ {
+ T((T_CREATE("thisARG %p"), result));
+ *result = *ap;
+ }
+
+ return ((void *)result);
+}
+
+/*---------------------------------------------------------------------------
+| Facility : libnform
+| Function : static void Free_This_Type(void *argp)
+|
+| Description : Free structure for alpha type argument.
+|
+| Return Values : -
++--------------------------------------------------------------------------*/
+static void
+Free_This_Type(void *argp)
+{
+ if (argp)
+ free(argp);
+}
+
+/*---------------------------------------------------------------------------
+| Facility : libnform
+| Function : static bool Check_This_Character(
+| int c,
+| const void *argp)
+|
+| Description : Check a character for the alpha type.
+|
+| Return Values : TRUE - character is valid
+| FALSE - character is invalid
++--------------------------------------------------------------------------*/
+static bool
+Check_This_Character(int c, const void *argp GCC_UNUSED)
+{
+#if USE_WIDEC_SUPPORT
+ if (iswalpha((wint_t) c))
+ return TRUE;
+#endif
+ return (isalpha(UChar(c)) ? TRUE : FALSE);
+}
+
+/*---------------------------------------------------------------------------
+| Facility : libnform
+| Function : static bool Check_This_Field(
+| FIELD *field,
+| const void *argp)
+|
+| Description : Validate buffer content to be a valid alpha value
+|
+| Return Values : TRUE - field is valid
+| FALSE - field is invalid
++--------------------------------------------------------------------------*/
+static bool
+Check_This_Field(FIELD *field, const void *argp)
+{
+ int width = ((const thisARG *)argp)->width;
+ unsigned char *bp = (unsigned char *)field_buffer(field, 0);
+ bool result = (width < 0);
+
+ Check_CTYPE_Field(result, bp, width, Check_This_Character);
+ return (result);
+}
+
+static FIELDTYPE typeTHIS =
+{
+ _HAS_ARGS | _RESIDENT,
+ 1, /* this is mutable, so we can't be const */
+ (FIELDTYPE *)0,
+ (FIELDTYPE *)0,
+ Make_This_Type,
+ Copy_This_Type,
+ Free_This_Type,
+ Check_This_Field,
+ Check_This_Character,
+ NULL,
+ NULL
+};
+
+NCURSES_EXPORT_VAR(FIELDTYPE*) TYPE_ALPHA = &typeTHIS;
+
+/* fty_alpha.c ends here */