gboolean
psiconv_read_header (GsfInput *input)
{
gboolean res = FALSE;
psiconv_buffer buf = NULL;
psiconv_config config;
if ((config = psiconv_config_default()) == NULL)
goto out;
config->verbosity = PSICONV_VERB_FATAL;
psiconv_config_read(NULL,&config);
if ((buf = psiconv_stream_to_buffer (input, 1024)) == NULL)
goto out;
if (psiconv_file_type(config, buf,NULL,NULL) == psiconv_sheet_file)
res = TRUE;
out:
if (config)
psiconv_config_free(config);
if (buf)
psiconv_buffer_free(buf);
return res;
}
/*!
* Check whether this is a Psion file of the given type
*
* This is used by the recognizeContents methods of the Word and TextEd
* sniffers.
* \return Psion files have strong magic, so we either return
* UT_CONFIDENCE_PERFECT or UT_CONFIDENCE_ZILCH.
*/
UT_Confidence_t IE_Imp_Psion_Sniffer::checkContents(const char * szBuf,
UT_uint32 iNumbytes,
psiconv_file_type_t filetype)
{
UT_uint32 i;
psiconv_config config;
psiconv_buffer pl;
psiconv_file_type_t filetype_detected;
// Prepare a new psiconv_config object
config = psiconv_config_default();
if (!config)
goto ERROR1;
config->error_handler = &psion_error_handler;
psiconv_config_read(NULL,&config);
// It is likely detection will fail, so keep it silent.
config->verbosity = PSICONV_VERB_FATAL;
// Copy the file data into a psiconv_buffer.
pl = psiconv_buffer_new();
if (!pl)
goto ERROR2;
for (i=0; i < iNumbytes; i++)
if ((psiconv_buffer_add(pl,szBuf[i]))) {
goto ERROR3;
}
// Check whether this is a Psion file.
filetype_detected = psiconv_file_type(config,pl,NULL,NULL);
psiconv_buffer_free(pl);
psiconv_config_free(config);
if (filetype == filetype_detected)
return UT_CONFIDENCE_PERFECT;
else
return UT_CONFIDENCE_ZILCH;
ERROR3:
psiconv_buffer_free(pl);
ERROR2:
psiconv_config_free(config);
ERROR1:
return UT_CONFIDENCE_ZILCH;
}
