fmt_core.c
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<HTML><HEAD><TITLE>/home/asysweb/public_html/cortex/kernel/src/fmt_core.c</TITLE></HEAD><BODY><pre><font color="#6920ac">/*************************************************************************/</font><font color="#6920ac">/* */</font><font color="#6920ac">/* Copyright (c) 1997-1999 Australian Real Time Embedded Systems */</font><font color="#6920ac">/* */</font><font color="#6920ac">/* PROPRIETARY RIGHTS of Australian Real Time Embedded Systems */</font><font color="#6920ac">/* are involved in the subject matter of this material. All reproduction,*/</font><font color="#6920ac">/* manufacturing, use, and sales rights pertaining to this subject matter*/</font><font color="#6920ac">/* are governed by the license agreement. The recipient of this software */</font><font color="#6920ac">/* implicitly accepts the terms of the license. */</font><font color="#6920ac">/* */</font><font color="#6920ac">/*************************************************************************/</font><font color="#6920ac">/************************************************************************** * * FILE NAME * * fmt_core.c * * SYSTEM COMPONENT * * Formatted I/O * * DESCRIPTION * * Core services for formatted I/O component * * SERVICES * * frmt_Format * frmt_Vformat * * frmt_SetLenMods - set length modifiers * frmt_GetLenMods - get length modifiers * frmt_RegisterFmtSpec - register format specifier * frmt_UnregisterFmtSpec - unregister format specifier * frmt_FindFmtSpec - find format specifier * * SCCS HISTORY * * @(#)fmt_core.c 1.10, 03/06/00, 19:22:07 * * AUTHOR * * Vadim N. Azarovsky * * CREATED * * 23-Mar-1997 by Vadim N. Azarovsky * * REVISION HISTORY * * NAME DATE REMARKS * **************************************************************************/</font><b><font color='DarkGreen'>#include</font></b> <a href="fmt_defs.h.FIND-INC"><font color="blue">"fmt_defs.h"</font></a><b><font color='DarkGreen'>#include</font></b> <a href="fmt_priv.h.FIND-INC"><font color="blue">"fmt_priv.h"</font></a><b><font color='DarkGreen'>#include</font></b> <a href="ass_defs.h.FIND-INC"><font color="blue">"ass_defs.h"</font></a><b><font color='DarkGreen'>#include</font></b> <a href="limits.h.FIND-INC"><<font color="blue">limits.h</font>></a><b><font color='DarkGreen'>#include</font></b> <a href="string.h.FIND-INC"><<font color="blue">string.h</font>></a><b><font color='DarkGreen'>#include</font></b> <a href="ctype.h.FIND-INC"><<font color="blue">ctype.h</font>></a><font size="+1"><i>crtx_Int_t</i> <b><font color="azure1"><a name="frmt_Format">frmt_Format</a></font></b>( <i>frmt_Put_t</i> Put_a, <font color="#6920ac">/* procedure to emit character */</font> <i>crtx_Void_t</i> *pEnv_a, <font color="#6920ac">/* client supplied data for Put handler */</font> <i>crtx_Char_t</i> *pFmt_a, <font color="#6920ac">/* output format string */</font> ... <font color="#6920ac">/* output arguments */</font>){</font><font color="#6920ac">/********************* * LOCAL VARIABLES * *********************/</font> <i>va_list</i> Args; <i>crtx_Int_t</i> n;<font color="#6920ac">/********************* * PROCEDURE LOGIC * *********************/</font> <a href="CRTX_ASSERT.FIND-DEF">CRTX_ASSERT</a>(Put_a) <a href="CRTX_ASSERT.FIND-DEF">CRTX_ASSERT</a>(pFmt_a) <a href="va_start.FIND-FUNC">va_start</a>(Args, pFmt_a); n = <a href="#frmt_Vformat">frmt_Vformat</a>(Put_a, pEnv_a, pFmt_a, Args); <a href="va_end.FIND-FUNC">va_end</a>(Args); <b>return</b> n;<font color="#6920ac">/************************ * EXCEPTION HANDLING * ************************/</font> <font color="#6920ac">/* None */</font>}<font size="+1"><i>static</i> <i>int</i> <b><font color="azure1"><a name="frmt_SformatPut">frmt_SformatPut</a></font></b>( <i>crtx_Char_t</i> Byte_a, <font color="#6920ac">/* byte to write into buffer */</font> <i>crtx_Void_t</i> *pEnv_a <font color="#6920ac">/* private context */</font>){</font><font color="#6920ac">/********************* * LOCAL VARIABLES * *********************/</font> <i>crtx_Char_t</i> **ppStr;<font color="#6920ac">/********************* * PROCEDURE LOGIC * *********************/</font> ppStr = (<i>crtx_Char_t</i> **)pEnv_a; **ppStr = Byte_a; (*ppStr)++; <b>return</b>(Byte_a);<font color="#6920ac">/************************ * EXCEPTION HANDLING * ************************/</font> <font color="#6920ac">/* None */</font>}<font size="+1"><i>crtx_Int_t</i> <b><font color="azure1"><a name="frmt_Sformat">frmt_Sformat</a></font></b>( <i>crtx_Char_t</i> *pStr_a, <font color="#6920ac">/* output string to fill in */</font> <i>crtx_Char_t</i> *pFmt_a, <font color="#6920ac">/* output format string */</font> ... <font color="#6920ac">/* output arguments */</font>){</font><font color="#6920ac">/********************* * LOCAL VARIABLES * *********************/</font> <i>va_list</i> Args; <i>crtx_Int_t</i> n;<font color="#6920ac">/********************* * PROCEDURE LOGIC * *********************/</font> <a href="CRTX_ASSERT.FIND-DEF">CRTX_ASSERT</a>(pStr_a) <a href="CRTX_ASSERT.FIND-DEF">CRTX_ASSERT</a>(pFmt_a) <a href="va_start.FIND-FUNC">va_start</a>(Args, pFmt_a); n = <a href="#frmt_Vformat">frmt_Vformat</a>(frmt_SformatPut, (<i>crtx_Void_t</i> *)&pStr_a, pFmt_a, Args); <a href="va_end.FIND-FUNC">va_end</a>(Args); pStr_a[0] = 0; <b>return</b> n;<font color="#6920ac">/************************ * EXCEPTION HANDLING * ************************/</font> <font color="#6920ac">/* None */</font>}<font size="+1"><i>crtx_Int_t</i> <b><font color="azure1"><a name="frmt_SVformat">frmt_SVformat</a></font></b>( <i>crtx_Char_t</i> *pStr_a, <font color="#6920ac">/* output string to fill in */</font> <i>crtx_Char_t</i> *pFmt_a, <font color="#6920ac">/* output format string */</font> <i>va_list</i> Args_a <font color="#6920ac">/* output arguments list */</font>){</font><font color="#6920ac">/********************* * LOCAL VARIABLES * *********************/</font> <i>crtx_Int_t</i> n;<font color="#6920ac">/********************* * PROCEDURE LOGIC * *********************/</font> <a href="CRTX_ASSERT.FIND-DEF">CRTX_ASSERT</a>(pStr_a) <a href="CRTX_ASSERT.FIND-DEF">CRTX_ASSERT</a>(pFmt_a) n = <a href="#frmt_Vformat">frmt_Vformat</a>(frmt_SformatPut, (<i>crtx_Void_t</i> *)&pStr_a, pFmt_a, Args_a); pStr_a[0] = 0; <b>return</b> n;<font color="#6920ac">/************************ * EXCEPTION HANDLING * ************************/</font> <font color="#6920ac">/* None */</font>}<font size="+1"><i>static</i> <i>int</i> <b><font color="azure1"><a name="frmt_SformatPut2">frmt_SformatPut2</a></font></b>( <i>crtx_Char_t</i> Byte_a, <font color="#6920ac">/* byte to write into buffer */</font> <i>crtx_Void_t</i> *pEnv_a <font color="#6920ac">/* private context */</font>){</font><font color="#6920ac">/********************* * LOCAL VARIABLES * *********************/</font> <i>frmt_Buffer_t</i> *pBuf;<font color="#6920ac">/********************* * PROCEDURE LOGIC * *********************/</font> pBuf = (<i>frmt_Buffer_t</i>*)pEnv_a; <b>if</b> (pBuf->pPtr < pBuf->pBuf + pBuf->Size) { *pBuf->pPtr = Byte_a; pBuf->pPtr++; } <b>return</b> Byte_a; <font color="#6920ac">/************************ * EXCEPTION HANDLING * ************************/</font> <font color="#6920ac">/* None */</font>}<font size="+1"><i>crtx_Int_t</i> <b><font color="azure1"><a name="frmt_Sformat2">frmt_Sformat2</a></font></b>( <i>crtx_Char_t</i> *pStr_a, <font color="#6920ac">/* output string to fill in */</font> <i>crtx_Int_t</i> Size_a, <font color="#6920ac">/* size of output string */</font> <i>crtx_Char_t</i> *pFmt_a, <font color="#6920ac">/* output format string */</font> ... <font color="#6920ac">/* output arguments */</font>){</font><font color="#6920ac">/********************* * LOCAL VARIABLES * *********************/</font> <i>va_list</i> Args; <i>crtx_Int_t</i> n; <i>frmt_Buffer_t</i> Buffer;<font color="#6920ac">/********************* * PROCEDURE LOGIC * *********************/</font> <a href="CRTX_ASSERT.FIND-DEF">CRTX_ASSERT</a>(pStr_a) <a href="CRTX_ASSERT.FIND-DEF">CRTX_ASSERT</a>(pFmt_a) <b>if</b> (Size_a <=0) <b>return</b> 0; Buffer.pBuf = Buffer.pPtr = pStr_a; Buffer.Size = Size_a - 1; <a href="va_start.FIND-FUNC">va_start</a>(Args, pFmt_a); n = <a href="#frmt_Vformat">frmt_Vformat</a>(frmt_SformatPut2, (<i>crtx_Void_t</i>*)&Buffer, pFmt_a, Args); <a href="va_end.FIND-FUNC">va_end</a>(Args); *Buffer.pPtr = 0; <b>return</b> n;<font color="#6920ac">/************************ * EXCEPTION HANDLING * ************************/</font> <font color="#6920ac">/* None */</font>}<font size="+1"><i>crtx_Int_t</i> <b><font color="azure1"><a name="frmt_SVformat2">frmt_SVformat2</a></font></b>( <i>crtx_Char_t</i> *pStr_a, <font color="#6920ac">/* output string to fill in */</font> <i>crtx_Int_t</i> Size_a, <font color="#6920ac">/* size of output string */</font> <i>crtx_Char_t</i> *pFmt_a, <font color="#6920ac">/* output format string */</font> <i>va_list</i> Args_a <font color="#6920ac">/* output arguments list */</font>){</font><font color="#6920ac">/*********************⌨️ 快捷键说明
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