📄 string_8c-source.html
字号:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"><title>OCILIB (C Driver for Oracle): C:/Users/vincent/Data/Perso/dev/ocilib/ocilib/src/string.c Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"><link href="tabs.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.5.4 --><div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="modules.html"><span>Modules</span></a></li> <li><a href="annotated.html"><span>Data Structures</span></a></li> <li class="current"><a href="files.html"><span>Files</span></a></li> </ul></div><h1>C:/Users/vincent/Data/Perso/dev/ocilib/ocilib/src/string.c</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span><a name="l00002"></a>00002 <span class="comment"> +----------------------------------------------------------------------+ </span><a name="l00003"></a>00003 <span class="comment"> | |</span><a name="l00004"></a>00004 <span class="comment"> | OCILIB - C Driver for Oracle |</span><a name="l00005"></a>00005 <span class="comment"> | |</span><a name="l00006"></a>00006 <span class="comment"> | (C Wrapper for Oracle OCI) |</span><a name="l00007"></a>00007 <span class="comment"> | |</span><a name="l00008"></a>00008 <span class="comment"> +----------------------------------------------------------------------+</span><a name="l00009"></a>00009 <span class="comment"> | Website : http://ocilib.net |</span><a name="l00010"></a>00010 <span class="comment"> +----------------------------------------------------------------------+</span><a name="l00011"></a>00011 <span class="comment"> | Copyright (c) 2007-2009 Vincent ROGIER |</span><a name="l00012"></a>00012 <span class="comment"> +----------------------------------------------------------------------+</span><a name="l00013"></a>00013 <span class="comment"> | This library is free software; you can redistribute it and/or |</span><a name="l00014"></a>00014 <span class="comment"> | modify it under the terms of the GNU Library General Public |</span><a name="l00015"></a>00015 <span class="comment"> | License as published by the Free Software Foundation; either |</span><a name="l00016"></a>00016 <span class="comment"> | version 2 of the License, or (at your option) any later version. |</span><a name="l00017"></a>00017 <span class="comment"> | |</span><a name="l00018"></a>00018 <span class="comment"> | This library is distributed in the hope that it will be useful, |</span><a name="l00019"></a>00019 <span class="comment"> | but WITHOUT ANY WARRANTY; without even the implied warranty of |</span><a name="l00020"></a>00020 <span class="comment"> | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |</span><a name="l00021"></a>00021 <span class="comment"> | Library General Public License for more details. |</span><a name="l00022"></a>00022 <span class="comment"> | |</span><a name="l00023"></a>00023 <span class="comment"> | You should have received a copy of the GNU Library General Public |</span><a name="l00024"></a>00024 <span class="comment"> | License along with this library; if not, write to the Free |</span><a name="l00025"></a>00025 <span class="comment"> | Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |</span><a name="l00026"></a>00026 <span class="comment"> +----------------------------------------------------------------------+</span><a name="l00027"></a>00027 <span class="comment"> | Author: Vincent ROGIER <vince.rogier@gmail.com> |</span><a name="l00028"></a>00028 <span class="comment"> +----------------------------------------------------------------------+ </span><a name="l00029"></a>00029 <span class="comment">*/</span><a name="l00030"></a>00030 <a name="l00031"></a>00031 <span class="comment">/* ------------------------------------------------------------------------ *</span><a name="l00032"></a>00032 <span class="comment"> * $Id: string.c, v 3.2.0 2009/04/20 00:00 Vince $</span><a name="l00033"></a>00033 <span class="comment"> * ------------------------------------------------------------------------ */</span><a name="l00034"></a>00034 <a name="l00035"></a>00035 <span class="preprocessor">#include "ocilib_internal.h"</span><a name="l00036"></a>00036 <a name="l00037"></a>00037 <span class="comment">/* ************************************************************************ *</span><a name="l00038"></a>00038 <span class="comment"> * PRIVATE FUNCTIONS</span><a name="l00039"></a>00039 <span class="comment"> * ************************************************************************ */</span><a name="l00040"></a>00040 <a name="l00041"></a>00041 <span class="comment">/* ------------------------------------------------------------------------ *</span><a name="l00042"></a>00042 <span class="comment"> * Widechar/Multibytes String functions</span><a name="l00043"></a>00043 <span class="comment"> *</span><a name="l00044"></a>00044 <span class="comment"> * StringCopy4to2bytes() and StringCopy2to4bytes() are based on the </span><a name="l00045"></a>00045 <span class="comment"> * ConvertUTF source file by Mark E. Davis - Copyright 2001 Unicode, Inc.</span><a name="l00046"></a>00046 <span class="comment"> *</span><a name="l00047"></a>00047 <span class="comment"> * ------------------------------------------------------------------------ */</span><a name="l00048"></a>00048 <a name="l00049"></a>00049 <span class="comment">/* ------------------------------------------------------------------------ *</span><a name="l00050"></a>00050 <span class="comment"> * OCI_StringCopy4to2bytes</span><a name="l00051"></a>00051 <span class="comment"> * ------------------------------------------------------------------------ */</span><a name="l00052"></a>00052 <a name="l00053"></a>00053 <span class="keywordtype">int</span> OCI_StringCopy4to2bytes(<span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>* src, <span class="keywordtype">int</span> src_size, <a name="l00054"></a>00054 <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span>* dst, <span class="keywordtype">int</span> dst_size)<a name="l00055"></a>00055 {<a name="l00056"></a>00056 <span class="keywordtype">int</span> cp_size = 0;<a name="l00057"></a>00057 <a name="l00058"></a>00058 <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *src_end = NULL;<a name="l00059"></a>00059 <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> *dst_end = NULL;<a name="l00060"></a>00060 <a name="l00061"></a>00061 OCI_CHECK(src == NULL, 0);<a name="l00062"></a>00062 OCI_CHECK(dst == NULL, 0);<a name="l00063"></a>00063 <a name="l00064"></a>00064 src_end = src + src_size;<a name="l00065"></a>00065 dst_end = dst + dst_size;<a name="l00066"></a>00066 <a name="l00067"></a>00067 <span class="keywordflow">while</span> (src < src_end)<a name="l00068"></a>00068 {<a name="l00069"></a>00069 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> c;<a name="l00070"></a>00070 <a name="l00071"></a>00071 <span class="keywordflow">if</span> (dst >= dst_end) <span class="keywordflow">return</span> -1; <a name="l00072"></a>00072 <a name="l00073"></a>00073 c = *src++;<a name="l00074"></a>00074 <a name="l00075"></a>00075 <span class="keywordflow">if</span> (c <= UNI_MAX_BMP) <a name="l00076"></a>00076 { <a name="l00077"></a>00077 <span class="keywordflow">if</span> ((c >= UNI_SUR_HIGH_START) && (c < UNI_SUR_LOW_END))<a name="l00078"></a>00078 *dst++ = UNI_REPLACEMENT_CHAR;<a name="l00079"></a>00079 <span class="keywordflow">else</span> <a name="l00080"></a>00080 *dst++ = (<span class="keywordtype">unsigned</span> short) c;<a name="l00081"></a>00081 <a name="l00082"></a>00082 cp_size++;<a name="l00083"></a>00083 }<a name="l00084"></a>00084 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (c > UNI_MAX_LEGAL_UTF32)<a name="l00085"></a>00085 {<a name="l00086"></a>00086 *dst++ = UNI_REPLACEMENT_CHAR;<a name="l00087"></a>00087 <a name="l00088"></a>00088 cp_size++;<a name="l00089"></a>00089 } <a name="l00090"></a>00090 <span class="keywordflow">else</span><a name="l00091"></a>00091 {<a name="l00092"></a>00092 <span class="keywordflow">if</span> ((dst + 1) >= dst_end) <span class="keywordflow">return</span> -2; <a name="l00093"></a>00093 <a name="l00094"></a>00094 c -= UNI_BASE;<a name="l00095"></a>00095 <a name="l00096"></a>00096 <span class="keywordflow">if</span> (dst)<a name="l00097"></a>00097 {<a name="l00098"></a>00098 *dst++ = (<span class="keywordtype">unsigned</span> short)((c >> UNI_SHIFT) + UNI_SUR_HIGH_START);<a name="l00099"></a>00099 *dst++ = (<span class="keywordtype">unsigned</span> short)((c & UNI_MASK ) + UNI_SUR_LOW_START );<a name="l00100"></a>00100 }<a name="l00101"></a>00101 <a name="l00102"></a>00102 cp_size++;<a name="l00103"></a>00103 cp_size++;<a name="l00104"></a>00104 }<a name="l00105"></a>00105 }<a name="l00106"></a>00106 <a name="l00107"></a>00107 <span class="keywordflow">return</span> cp_size;<a name="l00108"></a>00108 }<a name="l00109"></a>00109 <a name="l00110"></a>00110 <span class="comment">/* ------------------------------------------------------------------------ *</span><a name="l00111"></a>00111 <span class="comment"> * OCI_StringCopy2to4bytes</span><a name="l00112"></a>00112 <span class="comment"> * ------------------------------------------------------------------------ */</span><a name="l00113"></a>00113 <a name="l00114"></a>00114 <span class="keywordtype">int</span> OCI_StringCopy2to4bytes(<span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span>* src, <span class="keywordtype">int</span> src_size, <a name="l00115"></a>00115 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>* dst, <span class="keywordtype">int</span> dst_size)<a name="l00116"></a>00116 {<a name="l00117"></a>00117 <span class="keywordtype">int</span> cp_size = 0;<a name="l00118"></a>00118 <a name="l00119"></a>00119 <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> *src_end = NULL;<a name="l00120"></a>00120 <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *dst_end = NULL;<a name="l00121"></a>00121 <a name="l00122"></a>00122 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> c1, c2;<a name="l00123"></a>00123 <a name="l00124"></a>00124 OCI_CHECK(src == NULL, 0);<a name="l00125"></a>00125 OCI_CHECK(dst == NULL, 0);<a name="l00126"></a>00126 <a name="l00127"></a>00127 src_end = src + src_size;<a name="l00128"></a>00128 dst_end = dst + dst_size;<a name="l00129"></a>00129 <a name="l00130"></a>00130 <span class="keywordflow">while</span> (src < src_end)<a name="l00131"></a>00131 {<a name="l00132"></a>00132 <a name="l00133"></a>00133 c1 = *src++;<a name="l00134"></a>00134 <a name="l00135"></a>00135 <span class="keywordflow">if</span> ((c1 >= UNI_SUR_HIGH_START) && (c1 <= UNI_SUR_HIGH_END))<a name="l00136"></a>00136 {<a name="l00137"></a>00137 <span class="keywordflow">if</span> (src < src_end)<a name="l00138"></a>00138 {<a name="l00139"></a>00139 c2 = *src;<a name="l00140"></a>00140 <a name="l00141"></a>00141 <span class="keywordflow">if</span> ((c2 >= UNI_SUR_LOW_START) && (c2 <= UNI_SUR_LOW_END))<a name="l00142"></a>00142 {<a name="l00143"></a>00143 c1 = ((c1 - UNI_SUR_HIGH_START) << UNI_SHIFT) + <a name="l00144"></a>00144 (c2 - UNI_SUR_LOW_START ) + UNI_BASE;<a name="l00145"></a>00145 <a name="l00146"></a>00146 ++src;<a name="l00147"></a>00147 }<a name="l00148"></a>00148 } <a name="l00149"></a>00149 <span class="keywordflow">else</span> <a name="l00150"></a>00150 <span class="keywordflow">return</span> -1;<a name="l00151"></a>00151 } <a name="l00152"></a>00152 <a name="l00153"></a>00153 <span class="keywordflow">if</span> (dst >= dst_end) <span class="keywordflow">return</span> -2;<a name="l00154"></a>00154 <a name="l00155"></a>00155 *dst++ = c1;<a name="l00156"></a>00156 <a name="l00157"></a>00157 cp_size++;<a name="l00158"></a>00158 }<a name="l00159"></a>00159 <a name="l00160"></a>00160 <span class="keywordflow">return</span> cp_size;<a name="l00161"></a>00161 }<a name="l00162"></a>00162 <a name="l00163"></a>00163 <span class="comment">/* ------------------------------------------------------------------------ *</span><a name="l00164"></a>00164 <span class="comment"> * OCI_StringLength</span><a name="l00165"></a>00165 <span class="comment"> * ------------------------------------------------------------------------ */</span>⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -