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78 lines
2.4 KiB
C++
78 lines
2.4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/*
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* This code was copied from xpcom/ds/nsTextFormatter r1.3
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* Memory model and Frozen linkage changes only.
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* -- Prasad <prasad@medhas.org>
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*/
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#ifndef nsTextFormatter_h___
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#define nsTextFormatter_h___
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/*
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** API for PR printf like routines. Supports the following formats
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** %d - decimal
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** %u - unsigned decimal
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** %x - unsigned hex
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** %X - unsigned uppercase hex
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** %o - unsigned octal
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** %hd, %hu, %hx, %hX, %ho - 16-bit versions of above
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** %ld, %lu, %lx, %lX, %lo - 32-bit versions of above
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** %lld, %llu, %llx, %llX, %llo - 64 bit versions of above
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** %s - utf8 string
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** %S - PRUnichar string
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** %c - character
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** %p - pointer (deals with machine dependent pointer size)
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** %f - float
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** %g - float
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*/
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#include "prio.h"
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#include <stdio.h>
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#include <stdarg.h>
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#include "nscore.h"
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#include "nsStringGlue.h"
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#ifdef XPCOM_GLUE
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#error "nsTextFormatter is not available in the standalone glue due to NSPR dependencies."
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#endif
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class NS_COM_GLUE nsTextFormatter {
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public:
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/*
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* sprintf into a fixed size buffer. Guarantees that the buffer is null
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* terminated. Returns the length of the written output, NOT including the
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* null terminator, or (uint32_t)-1 if an error occurs.
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*/
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static uint32_t snprintf(PRUnichar *out, uint32_t outlen, const PRUnichar *fmt, ...);
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/*
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* sprintf into a nsMemory::Alloc'd buffer. Return a pointer to
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* buffer on success, nullptr on failure.
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*/
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static PRUnichar* smprintf(const PRUnichar *fmt, ...);
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static uint32_t ssprintf(nsAString& out, const PRUnichar* fmt, ...);
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/*
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* va_list forms of the above.
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*/
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static uint32_t vsnprintf(PRUnichar *out, uint32_t outlen, const PRUnichar *fmt, va_list ap);
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static PRUnichar* vsmprintf(const PRUnichar *fmt, va_list ap);
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static uint32_t vssprintf(nsAString& out, const PRUnichar *fmt, va_list ap);
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/*
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* Free the memory allocated, for the caller, by smprintf.
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* -- Deprecated --
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* Callers can substitute calling smprintf_free with nsMemory::Free
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*/
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static void smprintf_free(PRUnichar *mem);
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};
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#endif /* nsTextFormatter_h___ */
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