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/* |
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Teem: Tools to process and visualize scientific data and images . |
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Copyright (C) 2013, 2012, 2011, 2010, 2009 University of Chicago |
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Copyright (C) 2008, 2007, 2006, 2005 Gordon Kindlmann |
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Copyright (C) 2004, 2003, 2002, 2001, 2000, 1999, 1998 University of Utah |
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This library is free software; you can redistribute it and/or |
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modify it under the terms of the GNU Lesser General Public License |
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(LGPL) as published by the Free Software Foundation; either |
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version 2.1 of the License, or (at your option) any later version. |
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The terms of redistributing and/or modifying this software also |
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include exceptions to the LGPL that facilitate static linking. |
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This library is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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Lesser General Public License for more details. |
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You should have received a copy of the GNU Lesser General Public License |
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along with this library; if not, write to Free Software Foundation, Inc., |
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "unrrdu.h" |
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#include "privateUnrrdu.h" |
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#define INFO "Print header of one or more nrrd files" |
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static const char *_unrrdu_headInfoL = |
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(INFO ". The value of this is simply to print the contents of nrrd " |
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"headers. This avoids the use of \"head -N\", where N has to be " |
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"determined manually, which always risks printing raw binary data " |
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"(following the header) to screen, which tends to clobber terminal " |
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"settings, make pointless beeps, and be annoying.\n " |
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"* Uses _nrrdOneLine"); |
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int |
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unrrdu_headDoit(const char *me, NrrdIoState *nio, char *inS, FILE *fout) { |
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airArray *mop; |
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unsigned int len; |
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FILE *fin; |
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mop = airMopNew(); |
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if (!( fin = airFopen(inS, stdin, "rb") )) { |
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biffAddf(me, "%s: couldn't fopen(\"%s\",\"rb\"): %s\n", |
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me, inS, strerror(errno)); |
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airMopError(mop); return 1; |
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} |
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airMopAdd(mop, fin, (airMopper)airFclose, airMopAlways); |
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if (_nrrdOneLine(&len, nio, fin)) { |
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biffAddf(me, "%s: error getting first line of file \"%s\"", me, inS); |
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airMopError(mop); return 1; |
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} |
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if (!len) { |
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biffAddf(me, "%s: immediately hit EOF\n", me); |
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airMopError(mop); return 1; |
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} |
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if (!( nrrdFormatNRRD->contentStartsLike(nio) )) { |
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biffAddf(me, "%s: first line (\"%s\") isn't a nrrd magic\n", |
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me, nio->line); |
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airMopError(mop); return 1; |
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} |
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while (len > 1) { |
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fprintf(fout, "%s\n", nio->line); |
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_nrrdOneLine(&len, nio, fin); |
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}; |
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/* experience has shown that on at least windows and darwin, the writing |
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process's fwrite() to stdout will fail if we exit without consuming |
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everything from stdin */ |
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if (stdin == fin) { |
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int c = getc(fin); |
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while (EOF != c) { |
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c = getc(fin); |
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} |
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} |
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airMopOkay(mop); |
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return 0; |
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} |
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int |
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unrrdu_headMain(int argc, const char **argv, const char *me, |
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hestParm *hparm) { |
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hestOpt *opt = NULL; |
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char *err, **inS; |
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NrrdIoState *nio; |
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airArray *mop; |
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int pret; |
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unsigned int ni, ninLen; |
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mop = airMopNew(); |
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hestOptAdd(&opt, NULL, "nin1", airTypeString, 1, -1, &inS, NULL, |
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"input nrrd(s)", &ninLen); |
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airMopAdd(mop, opt, (airMopper)hestOptFree, airMopAlways); |
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✓✗ |
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USAGE(_unrrdu_headInfoL); |
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PARSE(); |
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airMopAdd(mop, opt, (airMopper)hestParseFree, airMopAlways); |
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nio = nrrdIoStateNew(); |
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airMopAdd(mop, nio, (airMopper)nrrdIoStateNix, airMopAlways); |
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for (ni=0; ni<ninLen; ni++) { |
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if (ninLen > 1) { |
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fprintf(stdout, "==> %s <==\n", inS[ni]); |
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} |
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if (unrrdu_headDoit(me, nio, inS[ni], stdout)) { |
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airMopAdd(mop, err = biffGetDone(me), airFree, airMopAlways); |
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fprintf(stderr, "%s: trouble reading from \"%s\":\n%s", |
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me, inS[ni], err); |
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/* continue working on the remaining files */ |
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} |
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if (ninLen > 1 && ni < ninLen-1) { |
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fprintf(stdout, "\n"); |
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} |
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} |
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airMopOkay(mop); |
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return 0; |
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} |
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UNRRDU_CMD(head, INFO); |