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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 "Converts DOS text files to normal, and more" |
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static const char *_unrrdu_undosInfoL = |
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(INFO |
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". Normally, it converts LF-CR pairs to just CR, or, with the \"-r\" " |
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"option, convert back to DOS, for whatever sick and " |
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"twisted reason you'd have to do that. Can also handle legacy MAC " |
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"text files (only LF). Unlike the simple sed or perl scripts for " |
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"this purpose, this program is careful to be idempotent. Also, this " |
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"makes an effort to not meddle with binary files (on which this may be " |
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"mistakenly invoked). A message is printed to stderr for all the files " |
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"actually modified. Does various things, some more justified than " |
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"others.\n " |
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"* (not actually based on Nrrd)"); |
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#define CR 10 |
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#define LF 13 |
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#define BAD_PERC 5.0 |
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static void |
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undosConvert(const char *me, char *name, int reverse, int mac, |
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int quiet, int noAction) { |
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airArray *mop; |
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FILE *fin, *fout; |
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char *data=NULL; |
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airArray *dataArr; |
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unsigned int ci; |
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int car, numBad, willConvert; |
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airPtrPtrUnion appu; |
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mop = airMopNew(); |
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if (!airStrlen(name)) { |
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fprintf(stderr, "%s: empty filename\n", me); |
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airMopError(mop); return; |
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} |
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/* -------------------------------------------------------- */ |
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/* open input file */ |
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fin = airFopen(name, stdin, "rb"); |
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if (!fin) { |
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if (!quiet) { |
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fprintf(stderr, "%s: couldn't open \"%s\" for reading: \"%s\"\n", |
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me, name, strerror(errno)); |
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} |
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airMopError(mop); return; |
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} |
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airMopAdd(mop, fin, (airMopper)airFclose, airMopOnError); |
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/* -------------------------------------------------------- */ |
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/* create buffer */ |
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appu.c = &data; |
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dataArr = airArrayNew(appu.v, NULL, sizeof(char), AIR_STRLEN_HUGE); |
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if (!dataArr) { |
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if (!quiet) { |
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fprintf(stderr, "%s: internal allocation error #1\n", me); |
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} |
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airMopError(mop); return; |
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} |
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airMopAdd(mop, dataArr, (airMopper)airArrayNuke, airMopAlways); |
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/* -------------------------------------------------------- */ |
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/* read input file, testing for binary-ness along the way */ |
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numBad = 0; |
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car = getc(fin); |
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if (EOF == car) { |
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if (!quiet) { |
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fprintf(stderr, "%s: \"%s\" is empty, skipping ...\n", me, name); |
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} |
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airMopError(mop); return; |
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} |
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do { |
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ci = airArrayLenIncr(dataArr, 1); |
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if (!dataArr->data) { |
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if (!quiet) { |
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fprintf(stderr, "%s: internal allocation error #2\n", me); |
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} |
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airMopError(mop); return; |
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} |
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data[ci] = car; |
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numBad += !(isprint(car) || isspace(car)); |
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car = getc(fin); |
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} while (EOF != car && BAD_PERC > 100.0*numBad/dataArr->len); |
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if (EOF != car) { |
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if (!quiet) { |
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fprintf(stderr, "%s: more than %g%% of \"%s\" is non-printing, " |
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"skipping ...\n", me, BAD_PERC, name); |
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} |
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airMopError(mop); return; |
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} |
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fin = airFclose(fin); |
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/* -------------------------------------------------------- */ |
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/* see if we really need to do anything */ |
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willConvert = AIR_FALSE; |
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if (!strcmp("-", name)) { |
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willConvert = AIR_TRUE; |
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} else if (reverse) { |
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for (ci=0; ci<dataArr->len; ci++) { |
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if (mac) { |
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if (CR == data[ci]) { |
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willConvert = AIR_TRUE; |
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break; |
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} |
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} else { |
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if (CR == data[ci] && (ci && LF != data[ci-1])) { |
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willConvert = AIR_TRUE; |
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break; |
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} |
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} |
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} |
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} else { |
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for (ci=0; ci<dataArr->len; ci++) { |
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if (mac) { |
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if (LF == data[ci]) { |
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willConvert = AIR_TRUE; |
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break; |
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} |
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} else { |
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if (LF == data[ci] && (ci+1<dataArr->len && CR == data[ci+1])) { |
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willConvert = AIR_TRUE; |
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break; |
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} |
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} |
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} |
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} |
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if (!willConvert) { |
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/* no, we don't need to do anything; quietly quit */ |
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airMopOkay(mop); |
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return; |
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} else { |
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if (!quiet) { |
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fprintf(stderr, "%s: %s \"%s\" %s %s ... \n", me, |
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noAction ? "would convert" : "converting", |
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name, |
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reverse ? "to" : "from", |
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mac ? "MAC" : "DOS"); |
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} |
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} |
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if (noAction) { |
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/* just joking, we won't actually write anything. |
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(yes, even if input was stdin) */ |
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airMopOkay(mop); |
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return; |
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} |
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/* -------------------------------------------------------- */ |
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/* open output file */ |
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fout = airFopen(name, stdout, "wb"); |
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if (!fout) { |
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if (!quiet) { |
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fprintf(stderr, "%s: couldn't open \"%s\" for writing: \"%s\"\n", |
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me, name, strerror(errno)); |
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} |
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airMopError(mop); return; |
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} |
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airMopAdd(mop, fout, (airMopper)airFclose, airMopOnError); |
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/* -------------------------------------------------------- */ |
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/* write output file */ |
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car = 'a'; |
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if (reverse) { |
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for (ci=0; ci<dataArr->len; ci++) { |
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if ((mac && CR == data[ci]) |
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|| (CR == data[ci] && (ci && LF != data[ci-1]))) { |
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car = putc(LF, fout); |
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if (!mac && EOF != car) { |
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car = putc(CR, fout); |
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} |
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} else { |
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car = putc(data[ci], fout); |
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} |
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} |
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} else { |
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for (ci=0; EOF != car && ci<dataArr->len; ci++) { |
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if ((mac && LF == data[ci]) |
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|| (LF == data[ci] && (ci+1<dataArr->len && CR == data[ci+1]))) { |
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car = putc(CR, fout); |
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ci += !mac; |
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} else { |
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car = putc(data[ci], fout); |
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} |
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} |
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} |
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if (EOF == car) { |
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if (!quiet) { |
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fprintf(stderr, "%s: ERROR writing \"%s\" possible data loss !!! " |
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"(sorry)\n", me, name); |
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} |
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} |
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fout = airFclose(fout); |
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airMopOkay(mop); |
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return; |
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} |
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int |
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unrrdu_undosMain(int argc, const char **argv, const char *me, |
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hestParm *hparm) { |
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/* these are stock for unrrdu */ |
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hestOpt *opt = NULL; |
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airArray *mop; |
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int pret; |
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char *err; |
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/* these are specific to this command */ |
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char **name; |
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int lenName, ni, reverse, quiet, noAction, mac; |
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hestOptAdd(&opt, "r", NULL, airTypeInt, 0, 0, &reverse, NULL, |
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"convert back to DOS, instead of converting from DOS to normal"); |
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hestOptAdd(&opt, "q", NULL, airTypeInt, 0, 0, &quiet, NULL, |
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"never print anything to stderr, even for errors."); |
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hestOptAdd(&opt, "m", NULL, airTypeInt, 0, 0, &mac, NULL, |
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"deal with legacy MAC text files."); |
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hestOptAdd(&opt, "n", NULL, airTypeInt, 0, 0, &noAction, NULL, |
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"don't actually write converted files, just pretend to. " |
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"This is useful to see which files WOULD be converted. "); |
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hestOptAdd(&opt, NULL, "file", airTypeString, 1, -1, &name, NULL, |
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"all the files to convert. Each file will be over-written " |
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"with its converted contents. Use \"-\" to read from stdin " |
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"and write to stdout", &lenName); |
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mop = airMopNew(); |
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airMopAdd(mop, opt, (airMopper)hestOptFree, airMopAlways); |
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✓✗ |
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USAGE(_unrrdu_undosInfoL); |
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PARSE(); |
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airMopAdd(mop, opt, (airMopper)hestParseFree, airMopAlways); |
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for (ni=0; ni<lenName; ni++) { |
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undosConvert(me, name[ni], reverse, mac, quiet, noAction); |
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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_HIDE(undos, INFO); |