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| -rw-r--r-- | src/libs/xpcom18a4/xpcom/ds/nsTextFormatter.h | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/xpcom/ds/nsTextFormatter.h b/src/libs/xpcom18a4/xpcom/ds/nsTextFormatter.h new file mode 100644 index 00000000..903ac195 --- /dev/null +++ b/src/libs/xpcom18a4/xpcom/ds/nsTextFormatter.h @@ -0,0 +1,115 @@ +/* -*- 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 mozilla.org Code. + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1998 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either of 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 ***** */ + +#ifndef nsTextFormatter_h___ +#define nsTextFormatter_h___ + +/* +** API for PR printf like routines. Supports the following formats +** %d - decimal +** %u - unsigned decimal +** %x - unsigned hex +** %X - unsigned uppercase hex +** %o - unsigned octal +** %hd, %hu, %hx, %hX, %ho - 16-bit versions of above +** %ld, %lu, %lx, %lX, %lo - 32-bit versions of above +** %lld, %llu, %llx, %llX, %llo - 64 bit versions of above +** %s - utf8 string +** %S - PRUnichar string +** %c - character +** %p - pointer (deals with machine dependent pointer size) +** %f - float +** %g - float +*/ +#include "prtypes.h" +#include "prio.h" +#include <stdio.h> +#include <stdarg.h> +#include "nscore.h" +#include "nsAString.h" + + +class NS_COM nsTextFormatter { + +public: + +/* +** sprintf into a fixed size buffer. Guarantees that a NUL is at the end +** of the buffer. Returns the length of the written output, NOT including +** the NUL, or (PRUint32)-1 if an error occurs. +*/ +static PRUint32 snprintf(PRUnichar *out, PRUint32 outlen, const PRUnichar *fmt, ...); + +/* +** sprintf into a PR_MALLOC'd buffer. Return a pointer to the malloc'd +** buffer on success, NULL on failure. Call "smprintf_free" to release +** the memory returned. +*/ +static PRUnichar* smprintf(const PRUnichar *fmt, ...); + + +static PRUint32 ssprintf(nsAString& out, const PRUnichar* fmt, ...); +/* +** Free the memory allocated, for the caller, by smprintf +*/ +static void smprintf_free(PRUnichar *mem); + +/* +** "append" sprintf into a PR_MALLOC'd buffer. "last" is the last value of +** the PR_MALLOC'd buffer. sprintf will append data to the end of last, +** growing it as necessary using realloc. If last is NULL, PR_sprintf_append +** will allocate the initial string. The return value is the new value of +** last for subsequent calls, or NULL if there is a malloc failure. +*/ +static PRUnichar* sprintf_append(PRUnichar *last, const PRUnichar *fmt, ...); + +/* +** va_list forms of the above. +*/ +static PRUint32 vsnprintf(PRUnichar *out, PRUint32 outlen, const PRUnichar *fmt, va_list ap); +static PRUnichar* vsmprintf(const PRUnichar *fmt, va_list ap); +static PRUint32 vssprintf(nsAString& out, const PRUnichar *fmt, va_list ap); +static PRUnichar* vsprintf_append(PRUnichar *last, const PRUnichar *fmt, va_list ap); + +#ifdef DEBUG +static PRBool SelfTest(); +#endif + + +}; + +#endif /* nsTextFormatter_h___ */ |