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+/* $Xorg: lcCharSet.c,v 1.3 2000/08/17 19:45:16 cpqbld Exp $ */
+/*
+ * Copyright 1992, 1993 by TOSHIBA Corp.
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose and without fee is hereby granted, provided
+ * that the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of TOSHIBA not be used in advertising
+ * or publicity pertaining to distribution of the software without specific,
+ * written prior permission. TOSHIBA make no representations about the
+ * suitability of this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ *
+ * TOSHIBA DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+ * TOSHIBA BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+ * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+ * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ *
+ * Author: Katsuhisa Yano TOSHIBA Corp.
+ * mopi@osa.ilab.toshiba.co.jp
+ */
+/* $XFree86: xc/lib/X11/lcCharSet.c,v 3.8 2001/01/17 19:41:53 dawes Exp $ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <stdio.h>
+#include "Xlibint.h"
+#include "XlcPublic.h"
+#include "XlcPubI.h"
+
+/* The list of all known XlcCharSets. They are identified by their name. */
+
+typedef struct _XlcCharSetListRec {
+ XlcCharSet charset;
+ struct _XlcCharSetListRec *next;
+} XlcCharSetListRec, *XlcCharSetList;
+
+static XlcCharSetList charset_list = NULL;
+
+/* Returns the charset with the given name (including side suffix).
+ Returns NULL if not found. */
+XlcCharSet
+_XlcGetCharSet(
+ const char *name)
+{
+ XlcCharSetList list;
+ XrmQuark xrm_name;
+
+ xrm_name = XrmStringToQuark(name);
+
+ for (list = charset_list; list; list = list->next) {
+ if (xrm_name == list->charset->xrm_name)
+ return (XlcCharSet) list->charset;
+ }
+
+ return (XlcCharSet) NULL;
+}
+
+/* Returns the charset with the given encoding (no side suffix) and
+ responsible for at least the given side (XlcGL or XlcGR).
+ Returns NULL if not found. */
+XlcCharSet
+_XlcGetCharSetWithSide(
+ const char *encoding_name,
+ XlcSide side)
+{
+ XlcCharSetList list;
+ XrmQuark xrm_encoding_name;
+
+ xrm_encoding_name = XrmStringToQuark(encoding_name);
+
+ for (list = charset_list; list; list = list->next) {
+ if (list->charset->xrm_encoding_name == xrm_encoding_name
+ && (list->charset->side == XlcGLGR || list->charset->side == side))
+ return (XlcCharSet) list->charset;
+ }
+
+ return (XlcCharSet) NULL;
+}
+
+/* Registers an XlcCharSet in the list of character sets.
+ Returns True if successful. */
+Bool
+_XlcAddCharSet(
+ XlcCharSet charset)
+{
+ XlcCharSetList list;
+
+ if (_XlcGetCharSet(charset->name))
+ return False;
+
+ list = (XlcCharSetList) Xmalloc(sizeof(XlcCharSetListRec));
+ if (list == NULL)
+ return False;
+
+ list->charset = charset;
+ list->next = charset_list;
+ charset_list = list;
+
+ return True;
+}
+
+/* List of resources for XlcCharSet. */
+static XlcResource resources[] = {
+ { XlcNName, NULLQUARK, sizeof(char *),
+ XOffsetOf(XlcCharSetRec, name), XlcGetMask },
+ { XlcNEncodingName, NULLQUARK, sizeof(char *),
+ XOffsetOf(XlcCharSetRec, encoding_name), XlcGetMask },
+ { XlcNSide, NULLQUARK, sizeof(XlcSide),
+ XOffsetOf(XlcCharSetRec, side), XlcGetMask },
+ { XlcNCharSize, NULLQUARK, sizeof(int),
+ XOffsetOf(XlcCharSetRec, char_size), XlcGetMask },
+ { XlcNSetSize, NULLQUARK, sizeof(int),
+ XOffsetOf(XlcCharSetRec, set_size), XlcGetMask },
+ { XlcNControlSequence, NULLQUARK, sizeof(char *),
+ XOffsetOf(XlcCharSetRec, ct_sequence), XlcGetMask }
+};
+
+/* Retrieves a number of attributes of an XlcCharSet.
+ Return NULL if successful, otherwise the name of the first argument
+ specifiying a nonexistent attribute. */
+static char *
+get_values(
+ XlcCharSet charset,
+ XlcArgList args,
+ int num_args)
+{
+ if (resources[0].xrm_name == NULLQUARK)
+ _XlcCompileResourceList(resources, XlcNumber(resources));
+
+ return _XlcGetValues((XPointer) charset, resources, XlcNumber(resources),
+ args, num_args, XlcGetMask);
+}
+
+/* Retrieves a number of attributes of an XlcCharSet.
+ Return NULL if successful, otherwise the name of the first argument
+ specifiying a nonexistent attribute. */
+char *
+_XlcGetCSValues(XlcCharSet charset, ...)
+{
+ va_list var;
+ XlcArgList args;
+ char *ret;
+ int num_args;
+
+ va_start(var, charset);
+ _XlcCountVaList(var, &num_args);
+ va_end(var);
+
+ va_start(var, charset);
+ _XlcVaToArgList(var, num_args, &args);
+ va_end(var);
+
+ if (args == (XlcArgList) NULL)
+ return (char *) NULL;
+
+ ret = get_values(charset, args, num_args);
+
+ Xfree(args);
+
+ return ret;
+}
+
+/* Creates a new XlcCharSet, given its name (including side suffix) and
+ Compound Text ESC sequence (normally at most 4 bytes). */
+XlcCharSet
+_XlcCreateDefaultCharSet(
+ const char *name,
+ const char *ct_sequence)
+{
+ XlcCharSet charset;
+ int name_len, ct_sequence_len;
+ const char *colon;
+ char *tmp;
+
+ charset = (XlcCharSet) Xmalloc(sizeof(XlcCharSetRec));
+ if (charset == NULL)
+ return (XlcCharSet) NULL;
+ bzero((char *) charset, sizeof(XlcCharSetRec));
+
+ name_len = strlen(name);
+ ct_sequence_len = strlen(ct_sequence);
+
+ /* Fill in name and xrm_name. */
+ tmp = (char *) Xmalloc(name_len + 1 + ct_sequence_len + 1);
+ if (tmp == NULL) {
+ Xfree((char *) charset);
+ return (XlcCharSet) NULL;
+ }
+ memcpy(tmp, name, name_len+1);
+ charset->name = tmp;
+ charset->xrm_name = XrmStringToQuark(charset->name);
+
+ /* Fill in encoding_name and xrm_encoding_name. */
+ if ((colon = strchr(charset->name, ':')) != NULL) {
+ unsigned int length = colon - charset->name;
+ char *encoding_tmp = (char *) Xmalloc(length + 1);
+ if (encoding_tmp == NULL) {
+ Xfree((char *) charset->name);
+ Xfree((char *) charset);
+ return (XlcCharSet) NULL;
+ }
+ memcpy(encoding_tmp, charset->name, length);
+ encoding_tmp[length] = '\0';
+ charset->encoding_name = encoding_tmp;
+ charset->xrm_encoding_name = XrmStringToQuark(charset->encoding_name);
+ } else {
+ charset->encoding_name = charset->name;
+ charset->xrm_encoding_name = charset->xrm_name;
+ }
+
+ /* Fill in ct_sequence. */
+ tmp += name_len + 1;
+ memcpy(tmp, ct_sequence, ct_sequence_len+1);
+ charset->ct_sequence = tmp;
+
+ /* Fill in side, char_size, set_size. */
+ if (!_XlcParseCharSet(charset))
+ /* If ct_sequence is not usable in Compound Text, remove it. */
+ charset->ct_sequence = "";
+
+ return (XlcCharSet) charset;
+}