/* open csv reader from memory */
iCsvReader *icsv_reader_open_memory(const char *text, ilong size)
{
iCsvReader *reader;
reader = (iCsvReader*)ikmem_malloc(sizeof(iCsvReader));
if (reader == NULL) {
return NULL;
}
it_init(&reader->string, ITYPE_STR);
#ifndef IDISABLE_FILE_SYSTEM_ACCESS
reader->fp = NULL;
#endif
reader->source = NULL;
reader->strings = NULL;
reader->line = 0;
reader->count = 0;
reader->source = istring_list_split(text, size, "\n", 1);
if (reader->source == NULL) {
ikmem_free(reader);
return NULL;
}
return reader;
}
// open csv writer from file: if filename is NULL, it will open in memory
iCsvWriter *icsv_writer_open(const char *filename, int append)
{
iCsvWriter *writer;
writer = (iCsvWriter*)ikmem_malloc(sizeof(iCsvWriter));
if (writer == NULL) return NULL;
if (filename != NULL) {
void *fp = NULL;
#ifndef IDISABLE_FILE_SYSTEM_ACCESS
writer->fp = fopen(filename, append? "a" : "w");
if (writer->fp && append) {
fseek(writer->fp, 0, SEEK_END);
}
fp = writer->fp;
#endif
if (fp == NULL) {
ikmem_free(writer);
return NULL;
}
writer->mode = 1;
} else {
writer->mode = 2;
#ifndef IDISABLE_FILE_SYSTEM_ACCESS
writer->fp = NULL;
#endif
}
writer->strings = istring_list_new();
if (writer->strings == NULL) {
#ifndef IDISABLE_FILE_SYSTEM_ACCESS
if (writer->fp) {
fclose(writer->fp);
}
#endif
ikmem_free(writer);
return NULL;
}
it_init(&writer->string, ITYPE_STR);
it_init(&writer->output, ITYPE_STR);
return writer;
}
// close csv writer
void icsv_writer_close(iCsvWriter *writer)
{
if (writer) {
if (writer->strings) {
istring_list_delete(writer->strings);
writer->strings = NULL;
}
#ifndef IDISABLE_FILE_SYSTEM_ACCESS
if (writer->fp) {
fclose(writer->fp);
writer->fp = NULL;
}
#endif
writer->mode = 0;
it_destroy(&writer->string);
it_destroy(&writer->output);
ikmem_free(writer);
}
}
void icsv_reader_close(iCsvReader *reader)
{
if (reader) {
if (reader->strings) {
istring_list_delete(reader->strings);
reader->strings = NULL;
}
if (reader->source) {
istring_list_delete(reader->source);
reader->source = NULL;
}
#ifndef IDISABLE_FILE_SYSTEM_ACCESS
if (reader->fp) {
fclose(reader->fp);
reader->fp = NULL;
}
#endif
reader->line = 0;
reader->count = 0;
it_destroy(&reader->string);
ikmem_free(reader);
}
}
void xfree(void *ptr)
{
if (kmem_turnon) ikmem_free(ptr);
else free(ptr);
}