我正在尝试使用LibOPC读取xlsx文件并写入csv文件。 xlsx文件包含各种数据类型,文件结构很重要。 我使用以下代码来读取共享字符串,但我不确定如何将字符串和其他数据类型与正确的结构相关联:
#include "stdafx.h"
#include <opc/opc.h>
#include <stdio.h>
// basic file operations
#include <iostream>
#include <fstream>
using namespace std;
FILE* pFile;
static void dumpSharedrows(mceTextReader_t *reader)
{
#if 0
xmlChar *ln = xmlStrdup(xmlTextReaderLocalName(reader->reader));
const char * lnvalue = (const char*)ln;
if ((strcmp(lnvalue, "si")) == 0) {
//id3++;
}
#endif
mce_skip_attributes(reader);
//mce_start_attributes(reader){ }
//mce_end_attributes(reader);
mce_start_children(reader)
{
mce_start_element(reader, NULL, NULL)
{
dumpSharedrows(reader);
}
mce_end_element(reader);
mce_start_text(reader)
{
for (const xmlChar *txt = xmlTextReaderConstValue(reader->reader); 0 != *txt; txt++)
{
putc(*txt, pFile);
}
putc(',', pFile);
// putc(*txt, stdout);
//putc('\n', stdout);
//remove((const char *)xmlTextReaderConstValue(reader->reader));
//LOGI("%s", xmlTextReaderConstValue(reader->reader));
}
mce_end_text(reader);
}
mce_end_children(reader);
}
int _tmain(int argc, _TCHAR* argv[])
{
const char *filename = "template.csv";
const char *mode = "w+";
fopen_s(&pFile, filename, mode);
opcInitLibrary();
opcContainer *c = opcContainerOpen(_X("template.xlsx"), OPC_OPEN_READ_ONLY, NULL, NULL);
if (NULL != c) {
mceTextReader_t reader;
if (OPC_ERROR_NONE == opcXmlReaderOpen(c, &reader, _X("xl/sharedStrings.xml"), NULL, 0, 0))
{
mce_start_document(&reader)
{
mce_start_element(&reader, NULL, NULL)
{
dumpSharedrows(&reader);
}
mce_end_element(&reader);
}
mce_end_document(&reader);
mceTextReaderCleanup(&reader);
}
opcContainerClose(c, OPC_CLOSE_NOW);
}
opcFreeLibrary();
fclose(pFile);
return 0;
}
非常感谢任何帮助或建议。