Initial commit of upstream NSPR (4.7.3) and NSS3 (3.12).

third_party/nspr/mozilla/nsprpub/pr/src/cplus/rcascii.h

Index: third_party/nspr/mozilla/nsprpub/pr/src/cplus/rcascii.h
diff --git a/third_party/nspr/mozilla/nsprpub/pr/src/cplus/rcascii.h b/third_party/nspr/mozilla/nsprpub/pr/src/cplus/rcascii.h
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index 0000000000000000000000000000000000000000..8476fc49e9d1fd39fa78622dc8644b90be409b82
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is the Netscape Portable Runtime (NSPR).
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1998-2000
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+/*
+** Class definitions to format ASCII data.
+*/
+
+#if defined(_RCASCII_H)
+#else
+#define _RCASCII_H
+
+/*
+** RCFormatStuff
+**  This class maintains no state - that is the responsibility of
+**  the class' client. For each call to Sx_printf(), the StuffFunction
+**  will be called for each embedded "%" in the 'fmt' string and once
+**  for each interveaning literal.
+*/
+class PR_IMPLEMENT(RCFormatStuff)
+{
+public:
+    RCFormatStuff();
+    virtual ~RCFormatStuff();
+
+    /*
+    ** Process the arbitrary argument list using as indicated by
+    ** the 'fmt' string. Each segment of the processing the stuff
+    ** function is called with the relavent translation.
+    */
+    virtual PRInt32 Sx_printf(void *state, const char *fmt, ...);
+
+    /*
+    ** The 'state' argument is not processed by the runtime. It
+    ** is merely passed from the Sx_printf() call. It is intended
+    ** to be used by the client to figure out what to do with the
+    ** new string.
+    **
+    ** The new string ('stuff') is ASCII translation driven by the
+    ** Sx_printf()'s 'fmt' string. It is not guaranteed to be a null
+    ** terminated string.
+    **
+    ** The return value is the number of bytes copied from the 'stuff'
+    ** string. It is accumulated for each of the calls to the stuff
+    ** function and returned from the original caller of Sx_printf().
+    */
+    virtual PRSize StuffFunction(
+        void *state, const char *stuff, PRSize stufflen) = 0;
+};  /* RCFormatStuff */
+
+
+/*
+** RCFormatBuffer
+**  The caller is supplying the buffer, the runtime is doing all
+**  the conversion. The object contains no state, so is reusable
+**  and reentrant.
+*/
+class PR_IMPLEMENT(RCFormatBuffer): public RCFormatStuff
+{
+public:
+    RCFormatBuffer();
+    virtual ~RCFormatBuffer();
+
+    /*
+    ** Format the trailing arguments as indicated by the 'fmt'
+    ** string. Put the result in 'buffer'. Return the number
+    ** of bytes moved into 'buffer'. 'buffer' will always be
+    ** a properly terminated string even if the convresion fails.
+    */
+    virtual PRSize Sn_printf(
+        char *buffer, PRSize length, const char *fmt, ...);
+
+    virtual char *Sm_append(char *buffer, const char *fmt, ...);
+
+private:
+    /*
+    ** This class overrides the stuff function, does not preserve
+    ** its virtual-ness and no longer allows the clients to call
+    ** it in the clear. In other words, it is now the implementation
+    ** for this class.
+    */
+    PRSize StuffFunction(void*, const char*, PRSize);
+        
+};  /* RCFormatBuffer */
+
+/*
+** RCFormat
+**  The runtime is supplying the buffer. The object has state - the
+**  buffer. Each operation must run to completion before the object
+**  can be reused. When it is, the buffer is reset (whatever that
+**  means). The result of a conversion is available via the extractor.
+**  After extracted, the memory still belongs to the class - if the
+**  caller wants to retain or modify, it must first be copied.
+*/
+class PR_IMPLEMENT(RCFormat): pubic RCFormatBuffer
+{
+public:
+    RCFormat();
+    virtual ~RCFormat();
+
+    /*
+    ** Translate the trailing arguments according to the 'fmt'
+    ** string and store the results in the object.
+    */
+    virtual PRSize Sm_printf(const char *fmt, ...);
+
+    /*
+    ** Extract the latest translation.
+    ** The object does not surrender the memory occupied by
+    ** the string. If the caller wishes to modify the data,
+    ** it must first be copied.
+    */
+    const char*();
+
+private:
+    char *buffer;
+
+    RCFormat(const RCFormat&);
+    RCFormat& operator=(const RCFormat&);
+}; /* RCFormat */
+
+/*
+** RCPrint
+**  The output is formatted and then written to an associated file
+**  descriptor. The client can provide a suitable file descriptor
+**  or can indicate that the output should be directed to one of
+**  the well-known "console" devices.
+*/
+class PR_IMPLEMENT(RCPrint): public RCFormat
+{
+    virtual ~RCPrint();
+    RCPrint(RCIO* output);
+    RCPrint(RCFileIO::SpecialFile output);
+
+    virtual PRSize Printf(const char *fmt, ...);
+private:
+    RCPrint();
+};  /* RCPrint */
+
+#endif /* defined(_RCASCII_H) */
+
+/* RCAscii.h */