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(Unicode C) CSV Special Chars - Comma, Double-QuotesThe Chilkat CSV class/component automatically handles special characters which include double-quotes, and the delimiter character (comma or semicolon). The Chilkat CSV library/component/class is freeware. The downloads for .NET, C++, Perl, Java, Ruby, and Python contain all of the Chilkat classes, some of which are freeware and some of which require licensing.
#include <C_CkCsvW.h> void ChilkatSample(void) { HCkCsvW csv; BOOL success; const wchar_t *csvDoc; // This example program loads a file (sample.csv) // that contains this content: // // year,color,country,food // 2001,red,France,cheese // 2005,blue,"United States",hamburger // 2008,green,Italy,pasta // 1998,orange,Japan,sushi // // The first row contains the column names. // This file is available at: // http://www.chilkatsoft.com/testData/sample.csv csv = CkCsvW_Create(); // Prior to loading the CSV file, indicate that the 1st row // should be treated as column names: CkCsvW_putHasColumnNames(csv,TRUE); // Load the CSV records from the file: success = CkCsvW_LoadFile(csv,L"sample.csv"); if (success != TRUE) { wprintf(L"%s\n",CkCsvW_lastErrorText(csv)); CkCsvW_Dispose(csv); return; } // A field may contain the delimiter character (in this case // the delimiter is a comma): // Change "cheese" to "cheese,baguette" // ("cheese" is at row=0, column=3 success = CkCsvW_SetCell(csv,0,3,L"cheese,baguette"); // A field may also contain double-quotes: // Change blue to shiny "metallic" blue success = CkCsvW_SetCell(csv,1,1,L"shiny \"metallic\" blue"); // Write the updated CSV to a string and display: csvDoc = CkCsvW_saveToString(csv); wprintf(L"%s\n",csvDoc); // Save the CSV to a file: success = CkCsvW_SaveFile(csv,L"out.csv"); if (success != TRUE) { wprintf(L"%s\n",CkCsvW_lastErrorText(csv)); } // The out.csv contains this: // year,color,country,food // 2001,red,France,"cheese,baguette" // 2005,"shiny ""metallic"" blue","United States",hamburger // 2008,green,Italy,pasta // 1998,orange,Japan,sush CkCsvW_Dispose(csv); } |
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