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/*
NrrdIO: stand-alone code for basic nrrd functionality
Copyright (C) 2008, 2007, 2006, 2005 Gordon Kindlmann
Copyright (C) 2004, 2003, 2002, 2001, 2000, 1999, 1998 University of Utah
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any
damages arising from the use of this software.
Permission is granted to anyone to use this software for any
purpose, including commercial applications, and to alter it and
redistribute it freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must
not claim that you wrote the original software. If you use this
software in a product, an acknowledgment in the product
documentation would be appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must
not be misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "NrrdIO.h"
#include "privateNrrd.h"
int
_nrrdEncodingAscii_available(void) {
return AIR_TRUE;
}
int
_nrrdEncodingAscii_read(FILE *file, void *_data, size_t elNum,
Nrrd *nrrd, NrrdIoState *nio) {
static const char me[]="_nrrdEncodingAscii_read";
char numbStr[AIR_STRLEN_HUGE]; /* HEY: fix this */
char *nstr;
size_t I;
char *data;
int tmp;
AIR_UNUSED(nio);
if (nrrdTypeBlock == nrrd->type) {
biffAddf(NRRD, "%s: can't read nrrd type %s from %s", me,
airEnumStr(nrrdType, nrrdTypeBlock),
nrrdEncodingAscii->name);
return 1;
}
data = (char*)_data;
I = 0;
while (I < elNum) {
if (1 != fscanf(file, "%s", numbStr)) {
biffAddf(NRRD, "%s: couldn't parse element " _AIR_SIZE_T_CNV
" of " _AIR_SIZE_T_CNV, me, I+1, elNum);
return 1;
}
if (!strcmp(",", numbStr)) {
/* its an isolated comma, not a value, pass over this */
continue;
}
/* get past any commas prefixing a number (without space) */
nstr = numbStr + strspn(numbStr, ",");
if (nrrd->type >= nrrdTypeInt) {
/* sscanf supports putting value directly into this type */
if (1 != airSingleSscanf(nstr, nrrdTypePrintfStr[nrrd->type],
(void*)(data + I*nrrdElementSize(nrrd)))) {
biffAddf(NRRD, "%s: couln't parse %s " _AIR_SIZE_T_CNV
" of " _AIR_SIZE_T_CNV " (\"%s\")", me,
airEnumStr(nrrdType, nrrd->type),
I+1, elNum, nstr);
return 1;
}
} else {
/* sscanf value into an int first */
if (1 != airSingleSscanf(nstr, "%d", &tmp)) {
biffAddf(NRRD, "%s: couln't parse element " _AIR_SIZE_T_CNV
" of " _AIR_SIZE_T_CNV " (\"%s\")",
me, I+1, elNum, nstr);
return 1;
}
nrrdIInsert[nrrd->type](data, I, tmp);
}
I++;
}
return 0;
}
int
_nrrdEncodingAscii_write(FILE *file, const void *_data, size_t elNum,
const Nrrd *nrrd, NrrdIoState *nio) {
static const char me[]="_nrrdEncodingAscii_write";
char buff[AIR_STRLEN_MED];
size_t bufflen, linelen;
const char *data;
size_t I;
if (nrrdTypeBlock == nrrd->type) {
biffAddf(NRRD, "%s: can't write nrrd type %s to %s", me,
airEnumStr(nrrdType, nrrdTypeBlock),
nrrdEncodingAscii->name);
return 1;
}
data = (char*)_data;
linelen = 0;
for (I=0; I<elNum; I++) {
nrrdSprint[nrrd->type](buff, data);
if (1 == nrrd->dim) {
fprintf(file, "%s\n", buff);
} else if (nrrd->dim == 2
&& nrrd->axis[0].size <= nio->valsPerLine) {
fprintf(file, "%s%c", buff,
(I+1)%(nrrd->axis[0].size) ? ' ' : '\n');
} else {
bufflen = strlen(buff);
if (linelen+bufflen+1 <= nio->charsPerLine) {
fprintf(file, "%s%s", I ? " " : "", buff);
linelen += (I ? 1 : 0) + bufflen;
} else {
fprintf(file, "\n%s", buff);
linelen = bufflen;
}
}
data += nrrdElementSize(nrrd);
}
/* just to be sure, we always end with a carraige return */
fprintf(file, "\n");
return 0;
}
const NrrdEncoding
_nrrdEncodingAscii = {
"ASCII", /* name */
"ascii", /* suffix */
AIR_FALSE, /* endianMatters */
AIR_FALSE, /* isCompression */
_nrrdEncodingAscii_available,
_nrrdEncodingAscii_read,
_nrrdEncodingAscii_write
};
const NrrdEncoding *const
nrrdEncodingAscii = &_nrrdEncodingAscii;
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