added CSVFieldSplite.h/.cpp

inc/hgl/util/csv/CSVFieldSplite.h

@@ -0,0 +1,26 @@
+#pragma once
+
+namespace hgl
+{
+    namespace util
+    {
+        /**
+        * CSV字段拆分工具<br>
+        * 支持逗号分隔与tab分隔以及使用引号包裹的字符串     */
+        class CSVFieldSplite
+        {
+            const char *str;
+            int str_length;
+
+            const char *sp;
+            const char *end;
+
+        public:
+
+            CSVFieldSplite(const char *s,const int length);
+            ~CSVFieldSplite()=default;
+
+            const char *next_field(int *len);
+        };//class CSVFieldSplite
+    }//namespace util
+}//namespace hgl

src/CMakeLists.txt

@@ -63,6 +63,11 @@ ENDIF(CM_UTIL_SUPPORT_HASH)
 
 ####################################################################################################
 
+SET(CSV_SOURCE  ${CMUTIL_ROOT_INCLUDE_PATH}/hgl/util/csv/CSVFieldSplite.h
+                csv/CSVFieldSplite.cpp)
+                
+SOURCE_GROUP("CSV" FILES ${CSV_SOURCE})
+
 SET(CMD_SOURCE  ${CMUTIL_ROOT_INCLUDE_PATH}/hgl/util/cmd/CmdParse.h
                 cmd/CmdParse.cpp)
 
@@ -90,6 +95,7 @@ add_cm_library(CMUtil "CM"	${CMD_SOURCE}
 
                             ${XML_PARSE_SOURCE}
                             ${JSON_TOOL_SOURCE}
+                            ${CSV_SOURCE}
 
                             ${HASH_HEADER_FILES}
                             ${HASH_SOURCE_FILES}

src/csv/CSVFieldSplite.cpp

@@ -0,0 +1,61 @@
+#include<hgl/util/csv/CSVFieldSplite.h>
+#include<hgl/type/StrChar.h>
+
+namespace hgl
+{
+    namespace util
+    {
+        CSVFieldSplite::CSVFieldSplite(const char *s,const int length)
+        {
+            str=s;
+            str_length=length;
+            sp=str;
+            end=str+str_length;
+        }
+
+        const char *CSVFieldSplite::next_field(int *len)
+        {
+            if(!len)return(nullptr);
+            if(sp>=end)return(nullptr);
+
+            if(*sp==','||*sp=='\t')
+            {
+                *len=0;
+                ++sp;
+                return sp;
+            }
+
+            const char *result;
+
+            if(*sp=='"')
+            {
+                ++sp;
+
+                const char *ep=hgl::strchr(sp,'"');
+
+                if(!ep)
+                    return nullptr;
+
+                result=sp;
+
+                *len=ep-sp;
+                sp=ep+2;
+                return result;
+            }
+            else
+            {
+                result=sp;
+
+                const char *ep=sp+1;
+            
+                while(*ep!=','&&*ep!='\t'&&ep<end)
+                    ++ep;
+
+                *len=ep-sp;
+                sp=ep+1;
+
+                return result;
+            }
+        }
+    }//namespace util
+}//namespace hgl