src/util/rcollate.c

#ifndef lint
static const char RCSid[] = "$Id: rcollate.c,v 2.44 2024/01/25 19:25:50 greg Exp $";
#endif
/*
 * Utility to re-order records in a binary or ASCII data file (matrix)
 */

#include <stdlib.h>
#include <ctype.h>
#include "platform.h"
#include "rtio.h"
#include "resolu.h"
#if defined(_WIN32) || defined(_WIN64)
  #undef ftello
  #define       ftello  ftell
  #undef ssize_t
  #define ssize_t       size_t
#else
  #include <sys/mman.h>
#endif

#define MAXLEVELS       16      /* max RxC.. block pairs */

typedef struct {
        void    *mapped;        /* memory-mapped pointer */
        void    *base;          /* pointer to base memory */
        size_t  len;            /* allocated memory length */
} MEMLOAD;              /* file loaded/mapped into memory */

typedef struct {
        int     nw_rec;         /* number of words per record */
        size_t  nrecs;          /* number of records we found */
        char    *rec[1];        /* record array (extends struct) */
} RECINDEX;

int             warnings = 1;                   /* report warnings? */

char            *fmtid = NULL;                  /* format id */
int             comp_size = 0;                  /* binary bytes/channel */
int             n_comp = 0;                     /* components/record */
int             ni_columns = 0;                 /* number of input columns */
int             ni_rows = 0;                    /* number of input rows */
int             no_columns = 0;                 /* number of output columns */
int             no_rows = 0;                    /* number of output rows */
int             transpose = 0;                  /* transpose rows & cols? */
int             i_header = 1;                   /* input header? */
int             o_header = 1;                   /* output header? */
int             outArray[MAXLEVELS][2];         /* output block nesting */
int             outLevels = 0;                  /* number of blocking levels */
int             check = 0;                      /* force data check? */

/* free loaded file */
static void
free_load(MEMLOAD *mp)
{
        if (mp == NULL || (mp->base == NULL) | (mp->len <= 0))
                return;
#ifdef MAP_FILE
        if (mp->mapped)
                munmap(mp->mapped, mp->len);
        else
#endif
                free(mp->base);
        mp->mapped = NULL;
        mp->base = NULL;
        mp->len = 0;
}

/* load memory from an input stream, starting from current position */
static int
load_stream(MEMLOAD *mp, FILE *fp)
{
        size_t  alloced = 0;
        char    buf[8192];
        size_t  nr;

        if (mp == NULL)
                return(-1);
        mp->mapped = NULL;
        mp->base = NULL;
        mp->len = 0;
        if (fp == NULL)
                return(-1);
        while ((nr = fread(buf, 1, sizeof(buf), fp)) > 0) {
                if (!alloced)
                        mp->base = malloc(alloced = nr);
                else if (mp->len+nr > alloced)
                        mp->base = realloc(mp->base,
                                alloced = alloced*(2+(nr==sizeof(buf)))/2+nr);
                if (mp->base == NULL)
                        return(-1);
                memcpy((char *)mp->base + mp->len, buf, nr);
                mp->len += nr;
        }
        if (ferror(fp)) {
                free_load(mp);
                return(-1);
        }
        if (alloced > mp->len*5/4)      /* don't waste too much space */
                mp->base = realloc(mp->base, mp->len);
        return(mp->len > 0);
}

#if defined(_WIN32) || defined(_WIN64)
                                /* too difficult to fix this */
#define load_file       load_stream
#else
/* load a file into memory */
static int
load_file(MEMLOAD *mp, FILE *fp)
{
        int     fd;
        off_t   skip, flen, fpos;
        if (mp == NULL)
                return(-1);
        mp->mapped = NULL;
        mp->base = NULL;
        mp->len = 0;
        if (fp == NULL)
                return(-1);
        fd = fileno(fp);
        skip = ftello(fp);
        flen = lseek(fd, 0, SEEK_END);
        if (flen <= skip)
                return((int)(flen - skip));
        mp->len = (size_t)(flen - skip);
#ifdef MAP_FILE
        if (mp->len >= 1L<<20) {        /* map file if >= 1 MByte */
                mp->mapped = mmap(NULL, flen, PROT_READ, MAP_PRIVATE, fd, 0);
                if (mp->mapped != MAP_FAILED) {
                        mp->base = (char *)mp->mapped + skip;
                        return(1);      /* mmap() success */
                }
                mp->mapped = NULL;      /* else fall back to reading it in... */
        }
#endif
        if (lseek(fd, skip, SEEK_SET) != skip ||
                        (mp->base = malloc(mp->len)) == NULL) {
                mp->len = 0;
                return(-1);
        }
        fpos = skip;
        while (fpos < flen) {           /* read() fails if n > 2 GBytes */
                ssize_t nread = read(fd, (char *)mp->base+(fpos-skip),
                                (flen-fpos < 1L<<24) ? flen-fpos : 1L<<24);
                if (nread <= 0) {
                        free_load(mp);
                        return(-1);
                }
                fpos += nread;
        }
        return(1);
}
#endif

/* free a record index */
#define free_records(rp)        free(rp)

/* compute record index */
static RECINDEX *
index_records(const MEMLOAD *mp, int nw_rec)
{
        int             nall = 0;
        RECINDEX        *rp;
        char            *cp, *mend;
        int             n;

        if (mp == NULL || (mp->base == NULL) | (mp->len <= 0))
                return(NULL);
        if (nw_rec <= 0)
                return(NULL);
        nall = 1000;
        rp = (RECINDEX *)malloc(sizeof(RECINDEX) + nall*sizeof(char *));
        if (rp == NULL)
                return(NULL);
        rp->nw_rec = nw_rec;
        rp->nrecs = 0;
        cp = (char *)mp->base;
        mend = cp + mp->len;
        for ( ; ; ) {                           /* whitespace-separated words */
                while (cp < mend && !*cp | isspace(*cp))
                        ++cp;
                if (cp >= mend)
                        break;
                if (rp->nrecs >= nall) {
                        nall += nall>>1;        /* get more record space */
                        rp = (RECINDEX *)realloc(rp,
                                        sizeof(RECINDEX) + nall*sizeof(char *));
                        if (rp == NULL)
                                return(NULL);
                }
                rp->rec[rp->nrecs++] = cp;      /* point to first non-white */
                n = rp->nw_rec;
                while (++cp < mend)             /* find end of record */
                        if (!*cp | isspace(*cp)) {
                                if (--n <= 0)
                                        break;  /* got requisite # words */
                                do {            /* else find next word */
                                        if (*cp == '\n') {
                                                fputs("Unexpected EOL in record!\n", stderr);
                                                free_records(rp);
                                                return(NULL);
                                        }
                                        if (++cp >= mend)
                                                break;
                                } while (!*cp | isspace(*cp));
                        }
        }
        rp->rec[rp->nrecs] = mend;              /* reallocate to save space */
        rp = (RECINDEX *)realloc(rp,
                        sizeof(RECINDEX) + rp->nrecs*sizeof(char *));
        return(rp);
}

/* count number of columns based on first EOL */
static int
count_columns(const RECINDEX *rp)
{
        char    *cp = rp->rec[0];
        char    *mend = rp->rec[rp->nrecs];
        int     i;

        while (*cp != '\n')
                if (++cp >= mend)
                        return(0);
        for (i = 0; i < rp->nrecs; i++)
                if (rp->rec[i] >= cp)
                        break;
        return(i);
}

/* copy nth record from index to stdout */
static int
print_record(const RECINDEX *rp, size_t n)
{
        static char     delims[] = " \t\n\r\f";
        int             words2go = rp->nw_rec;
        char            *scp;

        if (n >= rp->nrecs)
                return(0);
        scp = rp->rec[n];

        if (check && !isfltd(scp, delims))
                goto formerr;
        do {
                putc(*scp++, stdout);
                if (!*scp | isspace(*scp)) {
                        if (--words2go <= 0)
                                break;
                        putc(' ', stdout);      /* single space btwn. words */
                        do
                                if (++scp >= rp->rec[n+1])
                                        break;
                        while (!*scp | isspace(*scp));

                        if (check && !isfltd(scp, delims))
                                goto formerr;
                }
        } while (scp < rp->rec[n+1]);
                                                /* caller adds record sep. */
        return(1);
formerr:
        fputs("Badly formed number: ", stderr);
        while (*scp && !isspace(*scp))
                fputc(*scp++, stderr);
        fputc('\n', stderr);
        return(0);
}

/* copy a stream to stdout, return bytes written or 0 on error */
static size_t
output_stream(FILE *fp)
{
        size_t  ntot = 0;
        char    buf[8192];
        size_t  n;

        if (fp == NULL)
                return(0);
        fflush(stdout);
        while ((n = fread(buf, 1, sizeof(buf), fp)) > 0) {
                if (write(fileno(stdout), buf, n) != n)
                        return(0);
                ntot += n;
        }
        return(!ferror(fp) * ntot);
}

/* get next word from stream, leaving stream on EOL or start of next word */
static char *
fget_word(char buf[256], FILE *fp)
{
        int     c;
        char    *cp;
                                        /* skip nul's and white space */
        while (!(c = getc(fp)) || isspace(c))
                ;
        if (c == EOF)
                return(NULL);
        cp = buf;
        do
                *cp++ = c;
        while ((c = getc(fp)) != EOF && !isspace(c) && cp < buf+255);
        *cp = '\0';
        while (isspace(c) & (c != '\n'))
                c = getc(fp);
        if (c != EOF)
                ungetc(c, fp);
        return(buf);
}

/* parse RxCx... string */
static int
get_array(const char *spec, int blklvl[][2], int nlvls)
{
        int     n;

        if (nlvls <= 0) {
                fputs("Too many block levels!\n", stderr);
                exit(1);
        }
        if (sscanf(spec, "%dx%d", &blklvl[0][0], &blklvl[0][1]) != 2) {
                fputs("Bad block specification!\n", stderr);
                exit(1);
        }
        while (isdigit(*spec))
                spec++;
        spec++;         /* 'x' */
        while (isdigit(*spec))
                spec++;
        if ((*spec != 'x') & (*spec != 'X')) {
                if (*spec) {
                        fputs("Blocks must be separated by 'x' or 'X'\n", stderr);
                        exit(1);
                }
                return(1);
        }
        spec++;
        n = get_array(spec, blklvl+1, nlvls-1);
        if (!n)
                return(0);
        blklvl[0][0] *= blklvl[1][0];
        blklvl[0][1] *= blklvl[1][1];
        return(n+1);
}

/* check settings and assign defaults */
static int
check_sizes()
{
        if (fmtid == NULL) {
                fmtid = "ascii";
        } else if (!comp_size) {
                if (!strcmp(fmtid, "float"))
                        comp_size = sizeof(float);
                else if (!strcmp(fmtid, "double"))
                        comp_size = sizeof(double);
                else if (!strcmp(fmtid, "byte"))
                        comp_size = 1;
                else if (strcmp(fmtid, "ascii")) {
                        fprintf(stderr, "Unsupported format: %s\n", fmtid);
                        return(0);
                }
        }
        if (transpose && (no_rows <= 0) & (no_columns <= 0)) {
                if (ni_rows > 0) no_columns = ni_rows;
                if (ni_columns > 0) no_rows = ni_columns;
        } else {
                if (no_columns <= 0)
                        no_columns = ni_columns;
                if ((no_rows <= 0) & (no_columns > 0) &&
                                !((ni_rows*ni_columns) % no_columns))
                        no_rows = ni_rows*ni_columns/no_columns;
        }
        if (n_comp <= 0)
                n_comp = 3;
        return(1);
}

/* call to compute block input position */
static size_t
get_block_pos(int r, int c, int blklvl[][2], int nlvls)
{
        size_t  n = 0;

        while (nlvls > 1) {
                int     sr = r/blklvl[1][0];
                int     sc = c/blklvl[1][1];
                r -= sr*blklvl[1][0];
                c -= sc*blklvl[1][1];
                n += sr*blklvl[1][0]*blklvl[0][1] + sc*blklvl[1][0]*blklvl[1][1];
                blklvl++;
                nlvls--;
        }
        n += r*blklvl[0][1] + c;
        return(n);
}

/* return input offset based on array ordering and transpose option */
static size_t
get_input_pos(int r, int c)
{
        size_t  n;

        if (outLevels > 1) {            /* block reordering */
                n = get_block_pos(r, c, outArray, outLevels);
                if (transpose) {
                        r = n/ni_rows;
                        c = n - r*ni_rows;
                        n = (size_t)c*ni_columns + r;
                }
        } else if (transpose)           /* transpose only */
                n = (size_t)c*ni_columns + r;
        else                            /* XXX should never happen! */
                n = (size_t)r*no_columns + c;
        return(n);
}

/* output reordered ASCII or binary data from memory */
static int
do_reorder(const MEMLOAD *mp)
{
        static const char       tabEOL[2] = {'\t','\n'};
        RECINDEX                *rp = NULL;
        size_t                  nrecords;
        int                     i, j;
                                                /* propogate sizes */
        if (ni_rows <= 0)
                ni_rows = transpose ? no_columns : no_rows;
        if (ni_columns <= 0)
                ni_columns = transpose ? no_rows : no_columns;
                                                /* get # records (& index) */
        if (!comp_size) {
                if ((rp = index_records(mp, n_comp)) == NULL)
                        return(0);
                if (ni_columns <= 0)
                        ni_columns = count_columns(rp);
                nrecords = rp->nrecs;
        } else if ((ni_rows > 0) & (ni_columns > 0)) {
                nrecords = (size_t)ni_rows*ni_columns;
                if (nrecords > mp->len/(n_comp*comp_size)) {
                        fputs("Input too small for specified size and type\n",
                                        stderr);
                        return(0);
                }
        } else
                nrecords = mp->len/(n_comp*comp_size);
                                                /* check sizes */
        if ((ni_rows <= 0) & (ni_columns > 0))
                ni_rows = nrecords/ni_columns;
        else if ((ni_columns <= 0) & (ni_rows > 0))
                ni_columns = nrecords/ni_rows;
        if (nrecords != (size_t)ni_rows*ni_columns)
                goto badspec;
        if (transpose) {
                if (no_columns <= 0)
                        no_columns = ni_rows;
                if (no_rows <= 0)
                        no_rows = ni_columns;
                if (outLevels <= 1 &&
                                (no_rows != ni_columns) | (no_columns != ni_rows))
                        goto badspec;
        } else {
                if (no_columns <= 0)
                        no_columns = ni_columns;
                if (no_rows <= 0)
                        no_rows = ni_rows;
        }
        if (ni_rows*ni_columns != no_rows*no_columns) {
                fputs("Number of input and output records do not match\n",
                                stderr);
                return(0);
        }
        if (o_header) {                         /* finish header? */
                printf("NROWS=%d\n", no_rows);
                printf("NCOLS=%d\n", no_columns);
                fputformat(fmtid, stdout);
                fputc('\n', stdout);
        }
                                                /* reorder records */
        for (i = 0; i < no_rows; i++) {
            for (j = 0; j < no_columns; j++) {
                size_t  n = get_input_pos(i, j);
                if (n >= nrecords) {
                        fputs("Index past end-of-file\n", stderr);
                        return(0);
                }
                if (rp != NULL) {               /* ASCII output */
                        if (!print_record(rp, n))
                                return(0);
                        putc(tabEOL[j >= no_columns-1], stdout);
                } else {                        /* binary output */
                        putbinary((char *)mp->base + (n_comp*comp_size)*n,
                                        comp_size, n_comp, stdout);
                }
            }
            if (ferror(stdout)) {
                fputs("Error writing to stdout\n", stderr);
                return(0);
            }
        }
        if (rp != NULL)
                free_records(rp);
        return(1);
badspec:
        fputs("Bad dimension(s)\n", stderr);
        return(0);
}

/* resize stream input by ignoring EOLs between ASCII records */
static int
do_resize(FILE *fp)
{
        size_t  records2go = ni_rows*ni_columns;
        int     columns2go = no_columns;
        char    word[256];
                        
        if (o_header) {                         /* finish header? */
                if (no_rows > 0)
                        printf("NROWS=%d\n", no_rows);
                if (no_columns > 0)
                        printf("NCOLS=%d\n", no_columns);
                fputformat(fmtid, stdout);
                fputc('\n', stdout);
        }
        if (comp_size) {                        /* just copy binary data? */
                size_t  nwritten = output_stream(fp);
                if ((no_rows > 0) & (no_columns > 0) &&
                                nwritten != (size_t)no_rows*no_columns*n_comp*comp_size) {
                        if (check) {
                                fputs("Incorrect binary file size\n", stderr);
                                return(0);      /* fatal if check is true */
                        }
                        if (warnings)
                                fputs("Warning -- unexpected binary file size\n", stderr);
                }
                return(nwritten > 0);
        }                                       /* else straight ASCII data copy? */
        if (!check & (no_columns == ni_columns) & (no_rows == ni_rows))
                return(output_stream(fp) > 0);
                                                /* need to reshape (& check?) input */
        if (no_columns <= 0) {
                fputs("Missing -oc specification\n", stderr);
                return(0);
        }
        if ((records2go <= 0) & (no_rows > 0))
                records2go = no_rows*no_columns;
        else if (no_rows*no_columns != records2go) {
                fprintf(stderr,
                        "Number of input and output records disagree (%dx%d != %dx%d)\n",
                                ni_rows, ni_columns, no_rows, no_columns);
                return(0);
        }
        do {                                    /* reshape records */
                int     n = n_comp;
                while (n--) {
                        if (fget_word(word, fp) == NULL) {
                                if ((records2go > 0) | (n < n_comp-1))
                                        break;
                                goto done;      /* normal EOD */
                        }
                        if (check && !isflt(word)) {
                                fputs("Badly formed number: ", stderr);
                                fputs(word, stderr);
                                fputc('\n', stderr);
                                return(0);
                        }
                        fputs(word, stdout);
                        if (n) {                /* mid-record? */
                                int     c = getc(fp);
                                if ((c == '\n') | (c == EOF))
                                        break;
                                ungetc(c, fp);
                                putc(' ', stdout);
                        }
                }
                if (n >= 0) {
                        fputs("Incomplete record / unexpected EOF\n", stderr);
                        return(0);
                }
                if (--columns2go <= 0) {        /* time to end output row? */
                        putc('\n', stdout);
                        columns2go = no_columns;
                } else                          /* else separate records */
                        putc('\t', stdout);
        } while (--records2go);                 /* expected EOD? */
done:
        if (columns2go != no_columns) {
                if (check) {
                        fputs("Incomplete final row\n", stderr);
                        return(0);
                }
                if (warnings)
                        fputs("Warning -- incomplete final row\n", stderr);
        }
        if (fget_word(word, fp) != NULL) {
                if (check) {
                        fputs("Characters beyond expected EOD\n", stderr);
                        return(0);
                }
                if (warnings)
                        fputs("Warning -- characters beyond expected EOD\n", stderr);
        }
        return(1);
}

/* process a header line and copy to stdout */
static int
headline(char *s, void *p)
{
        static char     fmt[MAXFMTLEN];
        int             n;

        if (formatval(fmt, s)) {
                if (fmtid == fmt) return(0);
                if (fmtid == NULL) {
                        fmtid = fmt;
                        return(0);
                }
                if (!check & (comp_size == 1) & (n_comp > 1))
                        return(0);              /* byte exception - skip check */
                if (!strcmp(fmt, fmtid))
                        return(0);
                fprintf(stderr, "Input format '%s' != '%s'\n", fmt, fmtid);
                return(-1);
        }
        if (!strncmp(s, "NROWS=", 6)) {
                n = atoi(s+6);
                if ((ni_rows > 0) & (n != ni_rows)) {
                        fputs("Incorrect input row count\n", stderr);
                        return(-1);
                }
                ni_rows = n;
                return(0);
        }
        if (!strncmp(s, "NCOLS=", 6)) {
                n = atoi(s+6);
                if ((ni_columns > 0) & (n != ni_columns)) {
                        fputs("Incorrect input column count\n", stderr);
                        return(-1);
                }
                ni_columns = n;
                return(0);
        }
        if (!strncmp(s, "NCOMP=", 6)) {
                if (!check & (comp_size == 1) & (n_comp > 1))
                        return(0);              /* byte exception - ignore */
                n = atoi(s+6);
                if ((n_comp > 0) & (n != n_comp)) {
                        fputs("Incorrect number of components\n", stderr);
                        return(-1);
                }
                n_comp = n;
                return(0);
        }
        if (o_header)
                fputs(s, stdout);               /* copy header info. */
        return(0);
}

/* main routine for converting rows/columns in data file */
int
main(int argc, char *argv[])
{
        int     a;

        for (a = 1; a < argc && argv[a][0] == '-'; a++)
                switch (argv[a][1]) {
                case 'i':                       /* input */
                        if (argv[a][2] == 'c')  /* columns */
                                ni_columns = atoi(argv[++a]);
                        else if (argv[a][2] == 'r')
                                ni_rows = atoi(argv[++a]);
                        else
                                goto userr;
                        break;
                case 'o':                       /* output */
                        if (argv[a][2] == 'c')  /* columns */
                                no_columns = atoi(argv[++a]);
                        else if (argv[a][2] == 'r')
                                no_rows = atoi(argv[++a]);
                        else if (argv[a][2] ||
                          !(outLevels=get_array(argv[++a], outArray, MAXLEVELS)))
                                goto userr;
                        break;
                case 'h':                       /* turn off header */
                        switch (argv[a][2]) {
                        case 'i':
                                i_header = 0;
                                break;
                        case 'o':
                                o_header = 0;
                                break;
                        case '\0':
                                i_header = o_header = 0;
                                break;
                        default:
                                goto userr;
                        }
                        break;
                case 't':                       /* transpose on/off */
                        transpose = !transpose;
                        break;
                case 'f':                       /* format */
                        switch (argv[a][2]) {
                        case 'a':               /* ASCII */
                        case 'A':
                                fmtid = "ascii";
                                comp_size = 0;
                                break;
                        case 'f':               /* float */
                        case 'F':
                                fmtid = "float";
                                comp_size = sizeof(float);
                                break;
                        case 'd':               /* double */
                        case 'D':
                                fmtid = "double";
                                comp_size = sizeof(double);
                                break;
                        case 'b':               /* binary (bytes) */
                        case 'B':
                                fmtid = "byte";
                                comp_size = 1;
                                break;
                        default:
                                goto userr;
                        }
                        if (argv[a][3]) {
                                if (!isdigit(argv[a][3]))
                                        goto userr;
                                n_comp = atoi(argv[a]+3);
                        } else
                                n_comp = 1;
                        break;
                case 'w':                       /* warnings on/off */
                        warnings = !warnings;
                        break;
                case 'c':                       /* force check operation */
                        check = 1;
                        break;
                default:
                        goto userr;
                }
        if (a < argc-1)                         /* arg count OK? */
                goto userr;
        if (outLevels) {                        /* should check consistency? */
                no_rows = outArray[0][0];
                no_columns = outArray[0][1];
        }
                                                /* open input file? */
        if (a == argc-1 && freopen(argv[a], "rb", stdin) == NULL) {
                fprintf(stderr, "%s: cannot open for reading\n", argv[a]);
                return(1);
        } else
                SET_FILE_BINARY(stdin);
        SET_FILE_BINARY(stdout);
#ifdef getc_unlocked                            /* avoid stupid semaphores */
        flockfile(stdin);
        flockfile(stdout);
#endif
                                                /* check for no-op */
        if (!transpose & !check & (outLevels <= 1) & (i_header == o_header) &&
                        (no_columns == ni_columns) & (no_rows == ni_rows)) {
                if (warnings)
                        fprintf(stderr, "%s: no-op -- copying input verbatim\n",
                                argv[0]);
                return(!output_stream(stdin));
        }
                                                /* read input header? */
        if (i_header && getheader(stdin, headline, NULL) < 0)
                return(1);
        if (!check_sizes())                     /* adjust sizes */
                return(1);
        if (o_header) {                         /* add to output header? */
                if (!i_header)
                        newheader("RADIANCE", stdout);
                printargs(a, argv, stdout);
                printf("NCOMP=%d\n", n_comp);
        }
        if (!comp_size) {                       /* a little late, here... */
                SET_FILE_TEXT(stdin);
                SET_FILE_TEXT(stdout);
        }
        if (transpose | (outLevels > 1) || (o_header && no_rows <= 0)) {
                MEMLOAD myMem;                  /* need to map into memory */
                if (a == argc-1) {
                        if (load_file(&myMem, stdin) <= 0) {
                                fprintf(stderr, "%s: error loading file into memory\n",
                                                argv[a]);
                                return(1);
                        }
                } else if (load_stream(&myMem, stdin) <= 0) {
                        fprintf(stderr, "%s: error loading stdin into memory\n",
                                                argv[0]);
                        return(1);
                }
                if (!do_reorder(&myMem))
                        return(1);
                /* free_load(&myMem);   about to exit, so don't bother */
        } else if (!do_resize(stdin))           /* just reshaping input */
                return(1);
        return(0);
userr:
        fprintf(stderr,
"Usage: %s [-h[io]][-w][-c][-f[afdb][N]][-t][-ic in_col][-ir in_row][-oc out_col][-or out_row][-o RxC[xR1xC1..]] [input.dat]\n",
                        argv[0]);
        return(1);
}
Revision:	2.45
Committed:	Fri Jan 26 00:47:17 2024 UTC (2 months, 2 weeks ago) by greg
Content type:	text/plain
Branch:	MAIN
CVS Tags:	HEAD
Changes since 2.44:	+3 -3 lines
Log Message:	feat(rcollate): Made -c option override new -fbN behavior