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authorWilliam Joye <wjoye@cfa.harvard.edu>2016-10-27 17:38:41 (GMT)
committerWilliam Joye <wjoye@cfa.harvard.edu>2016-10-27 17:38:41 (GMT)
commit5b44fb0d6530c4ff66a446afb69933aa8ffd014f (patch)
treee059f66d1f612e21fe9d83f9620c8715530353ec /funtools/jointable.c
parentda2e3d212171bbe64c1af39114fd067308656990 (diff)
parent23c7930d27fe11c4655e1291a07a821dbbaba78d (diff)
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Merge commit '23c7930d27fe11c4655e1291a07a821dbbaba78d' as 'funtools'
Diffstat (limited to 'funtools/jointable.c')
-rw-r--r--funtools/jointable.c932
1 files changed, 932 insertions, 0 deletions
diff --git a/funtools/jointable.c b/funtools/jointable.c
new file mode 100644
index 0000000..418d0fb
--- /dev/null
+++ b/funtools/jointable.c
@@ -0,0 +1,932 @@
+/* join - join lines of two files on a common field
+ Copyright (C) 1991, 1995 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+ Written by Mike Haertel, mike@gnu.ai.mit.edu. */
+
+#include <config.h>
+
+/* Get isblank from GNU libc. */
+#define _GNU_SOURCE
+
+#include <xos.h>
+#include <xfile.h>
+#include <sys/types.h>
+#include "system.h"
+#include "version.h"
+
+#include <table.h>
+
+int table = 1;
+File ofile;
+
+char *xmalloc ();
+char *xrealloc ();
+static void usage ();
+
+#define min(A, B) ((A) < (B) ? (A) : (B))
+#define max(A, B) ((A) > (B) ? (A) : (B))
+
+/* An element of the list describing the format of each
+ output line. */
+struct outlist
+ {
+ int file; /* File to take field from (1 or 2). */
+ int field; /* Field number to print. */
+ struct outlist *next;
+ };
+
+/* A field of a line. */
+struct field
+ {
+ char *beg; /* First character in field. */
+ size_t len; /* The length of the field. */
+ };
+
+/* A line read from an input file. Newlines are not stored. */
+struct line
+ {
+ char *beg; /* First character in line. */
+ char *lim; /* Character after last character in line. */
+ int nfields; /* Number of elements in `fields'. */
+ int nfields_allocated; /* Number of elements in `fields'. */
+ struct field *fields;
+ };
+
+/* One or more consecutive lines read from a file that all have the
+ same join field value. */
+struct seq
+ {
+ int count; /* Elements used in `lines'. */
+ int alloc; /* Elements allocated in `lines'. */
+ struct line *lines;
+ };
+
+/* The name this program was run with. */
+char *program_name;
+
+/* If nonzero, print unpairable lines in file 1 or 2. */
+static int print_unpairables_1, print_unpairables_2;
+
+/* If nonzero, print pairable lines. */
+static int print_pairables;
+
+/* Empty output field filler. */
+static char *empty_filler = NULL;
+
+/* Field to join on. */
+static int join_field_1, join_field_2;
+
+/* List of fields to print. */
+static struct outlist *outlist;
+
+/* Last element in `outlist', where a new element can be added. */
+static struct outlist *outlist_end;
+
+/* Tab character separating fields; if this is NUL fields are separated
+ by any nonempty string of white space, otherwise by exactly one
+ tab character. */
+static char tab = '\t';
+
+/* Used to print non-joining lines */
+static struct line uni_blank;
+static struct line blank1;
+static struct line blank2;
+
+static void
+ADD_FIELD (line, field, len)
+ struct line *line;
+ char *field;
+ size_t len;
+{
+ if (line->nfields >= line->nfields_allocated)
+ {
+ line->nfields_allocated = (3 * line->nfields_allocated) / 2 + 1;
+ line->fields = (struct field *) xrealloc ((char *) line->fields,
+ (line->nfields_allocated
+ * sizeof (struct field)));
+ }
+ line->fields[line->nfields].beg = field;
+ line->fields[line->nfields].len = len;
+ ++(line->nfields);
+}
+
+/* Fill in the `fields' structure in LINE. */
+
+static void
+xfields (line)
+ struct line *line;
+{
+ int i;
+ register char *ptr, *lim;
+
+ ptr = line->beg;
+ lim = line->lim;
+
+ for (i = 0; ptr < lim; ++i)
+ {
+ if (tab)
+ {
+ char *beg, *end;
+
+ if ( table ) while ( ptr < lim && *ptr == ' ' ) ptr++;
+ beg = ptr;
+ while (ptr < lim && *ptr != tab)
+ ++ptr;
+ if ( table ) {
+ end = ptr;
+ while (ptr > beg && *(ptr - 1) == ' ' ) ptr--;
+ ADD_FIELD (line, beg, ptr - beg);
+ ptr = end;
+ } else
+ ADD_FIELD (line, beg, ptr - beg);
+
+ if (ptr < lim)
+ ++ptr;
+ }
+ else
+ {
+ char *beg;
+
+ beg = ptr;
+ while (ptr < lim && !ISSPACE (*ptr))
+ ++ptr;
+ ADD_FIELD (line, beg, ptr - beg);
+ while (ptr < lim && ISSPACE (*ptr))
+ ++ptr;
+ }
+ }
+
+ if ( !table ) {
+ if (ptr > line->beg && ((tab && ISSPACE (ptr[-1])) || ptr[-1] == tab))
+ {
+ /* Add one more (empty) field because the last character of the
+ line was a delimiter. */
+ ADD_FIELD (line, NULL, 0);
+ }
+ } else {
+ if ( ptr > line->beg && ptr[-1] == tab ) {
+ ADD_FIELD (line, NULL, 0);
+ }
+ }
+}
+
+/* Read a line from FP into LINE and split it into fields.
+ Return 0 if EOF, 1 otherwise. */
+
+int GetCh(fp)
+ FILE *fp;
+{
+ int c;
+
+ while ( (c = getc(fp)) == '\r' ) ;
+ return c;
+}
+
+static int
+get_line (fp, line)
+ FILE *fp;
+ struct line *line;
+{
+ static int linesize = 80;
+ int c, i;
+ char *ptr;
+
+ if (feof (fp))
+ return 0;
+
+ ptr = xmalloc (linesize);
+
+ for (i = 0; (c = GetCh (fp)) != EOF && c != '\n'; ++i)
+ {
+ if (i == linesize)
+ {
+ linesize *= 2;
+ ptr = xrealloc (ptr, linesize);
+ }
+ ptr[i] = c;
+ }
+
+ if (c == EOF && i == 0)
+ {
+ free (ptr);
+ return 0;
+ }
+
+ line->beg = ptr;
+ line->lim = line->beg + i;
+ line->nfields_allocated = 0;
+ line->nfields = 0;
+ line->fields = NULL;
+ xfields (line);
+ return 1;
+}
+
+static void
+freeline (line)
+ struct line *line;
+{
+ free ((char *) line->fields);
+ free (line->beg);
+ line->beg = NULL;
+}
+
+static void
+initseq (seq)
+ struct seq *seq;
+{
+ seq->count = 0;
+ seq->alloc = 1;
+ seq->lines = (struct line *) xmalloc (seq->alloc * sizeof (struct line));
+}
+
+/* Read a line from FP and add it to SEQ. Return 0 if EOF, 1 otherwise. */
+
+static int
+getseq (fp, seq)
+ FILE *fp;
+ struct seq *seq;
+{
+ if (seq->count == seq->alloc)
+ {
+ seq->alloc *= 2;
+ seq->lines = (struct line *)
+ xrealloc ((char *) seq->lines, seq->alloc * sizeof (struct line));
+ }
+
+ if (get_line (fp, &seq->lines[seq->count]))
+ {
+ ++seq->count;
+ return 1;
+ }
+ return 0;
+}
+
+static void
+delseq (seq)
+ struct seq *seq;
+{
+ int i;
+ for (i = 0; i < seq->count; i++)
+ if (seq->lines[i].beg)
+ freeline (&seq->lines[i]);
+ free ((char *) seq->lines);
+}
+
+/* Return <0 if the join field in LINE1 compares less than the one in LINE2;
+ >0 if it compares greater; 0 if it compares equal. */
+
+static int Numeric = 0;
+static int Reverse = 0;
+
+static int
+keycmp (line1, line2)
+ struct line *line1;
+ struct line *line2;
+{
+ char *beg1, *beg2; /* Start of field to compare in each file. */
+ int len1, len2; /* Length of fields to compare. */
+ int diff;
+
+ if (join_field_1 < line1->nfields)
+ {
+ beg1 = line1->fields[join_field_1].beg;
+ len1 = line1->fields[join_field_1].len;
+ }
+ else
+ {
+ beg1 = NULL;
+ len1 = 0;
+ }
+
+ if (join_field_2 < line2->nfields)
+ {
+ beg2 = line2->fields[join_field_2].beg;
+ len2 = line2->fields[join_field_2].len;
+ }
+ else
+ {
+ beg2 = NULL;
+ len2 = 0;
+ }
+
+ if (len1 == 0)
+ return len2 == 0 ? 0 : -1;
+ if (len2 == 0)
+ return 1;
+
+#ifdef SAOMOD
+ if ( Numeric ) {
+ char chr1 = *(beg1 + len1);
+ char chr2 = *(beg2 + len2);
+
+ *(beg1+len1) = '\0';
+ *(beg2+len2) = '\0';
+
+ if ( *beg1 != '+' && *beg1 != '-' && !ISDIGIT(*beg1) )
+
+ if ( *beg2 != '+' && *beg2 != '-' && !ISDIGIT(*beg2) )
+ diff = memcmp (beg1, beg2, min(len1, len2));
+ else
+ diff = 1;
+ else
+ if ( *beg2 != '+' && *beg2 != '-' && !ISDIGIT(*beg2) )
+
+ diff = -1;
+ else
+ if ( Numeric == 1 ) {
+ double f1 = strtod(beg1, 0);
+ double f2 = strtod(beg2, 0);
+
+
+ diff = f1 < f2 ? -1 : (f1 == f2 ? 0 : 1);
+ } else {
+ double f1 = SAOstrtod(beg1, 0);
+ double f2 = SAOstrtod(beg2, 0);
+
+ diff = f1 < f2 ? -1 : (f1 == f2 ? 0 : 1);
+ }
+
+ *(beg1+len1) = chr1;
+ *(beg2+len2) = chr2;
+
+ } else
+#endif
+ diff = memcmp (beg1, beg2, min (len1, len2));
+
+ if (diff)
+#ifndef SAOMOD
+ return diff;
+#else
+ return Reverse ? -diff : diff;
+
+ if ( Numeric ) return diff;
+#endif
+
+ return len1 - len2;
+}
+
+/* Print field N of LINE if it exists and is nonempty, otherwise
+ `empty_filler' if it is nonempty. */
+
+static void
+prfield (n, line)
+ int n;
+ struct line *line;
+{
+ int len;
+
+ if (n < line->nfields)
+ {
+ len = line->fields[n].len;
+ if (len)
+ fwrite (line->fields[n].beg, 1, len, ofile);
+ else if (empty_filler)
+ fputs (empty_filler, ofile);
+ }
+ else if (empty_filler)
+ fputs (empty_filler, ofile);
+}
+
+/* Print the join of LINE1 and LINE2. */
+
+static void
+prjoin (line1, line2)
+ struct line *line1;
+ struct line *line2;
+{
+ if (outlist)
+ {
+ struct outlist *o;
+
+ prfield (outlist->field - 1, outlist->file == 1 ? line1 : line2);
+ for (o = outlist->next; o; o = o->next)
+ {
+ putchar (tab ? tab : ' ');
+ prfield (o->field - 1, o->file == 1 ? line1 : line2);
+ }
+ putchar ('\n');
+ }
+ else
+ {
+ int i;
+
+ if ( line1 == &blank1 )
+ prfield (join_field_2, line2);
+ else
+ prfield (join_field_1, line1);
+
+ for (i = 0; i < join_field_1 && i < line1->nfields; ++i)
+ {
+ putchar (tab ? tab : ' ');
+ prfield (i, line1);
+ }
+ for (i = join_field_1 + 1; i < line1->nfields; ++i)
+ {
+ putchar (tab ? tab : ' ');
+ prfield (i, line1);
+ }
+
+ for (i = 0; i < join_field_2 && i < line2->nfields; ++i)
+ {
+ putchar (tab ? tab : ' ');
+ prfield (i, line2);
+ }
+ for (i = join_field_2 + 1; i < line2->nfields; ++i)
+ {
+ putchar (tab ? tab : ' ');
+ prfield (i, line2);
+ }
+ putchar ('\n');
+ }
+}
+
+/* Print the join of the files in FP1 and FP2. */
+
+static void
+join (fp1, fp2)
+ FILE *fp1;
+ FILE *fp2;
+{
+ struct seq seq1, seq2;
+ struct line line;
+ int diff, i, j, eof1, eof2;
+
+ /* Read the first line of each file. */
+ initseq (&seq1);
+ getseq (fp1, &seq1);
+ initseq (&seq2);
+ getseq (fp2, &seq2);
+
+ while (seq1.count && seq2.count)
+ {
+ diff = keycmp (&seq1.lines[0], &seq2.lines[0]);
+ if (diff < 0)
+ {
+ if (print_unpairables_1)
+ prjoin (&seq1.lines[0], &blank2);
+ freeline (&seq1.lines[0]);
+ seq1.count = 0;
+ getseq (fp1, &seq1);
+ continue;
+ }
+ if (diff > 0)
+ {
+ if (print_unpairables_2)
+ prjoin (&blank1, &seq2.lines[0]);
+ freeline (&seq2.lines[0]);
+ seq2.count = 0;
+ getseq (fp2, &seq2);
+ continue;
+ }
+
+ /* Keep reading lines from file1 as long as they continue to
+ match the current line from file2. */
+ eof1 = 0;
+ do
+ if (!getseq (fp1, &seq1))
+ {
+ eof1 = 1;
+ ++seq1.count;
+ break;
+ }
+ while (!keycmp (&seq1.lines[seq1.count - 1], &seq2.lines[0]));
+
+ /* Keep reading lines from file2 as long as they continue to
+ match the current line from file1. */
+ eof2 = 0;
+ do
+ if (!getseq (fp2, &seq2))
+ {
+ eof2 = 1;
+ ++seq2.count;
+ break;
+ }
+ while (!keycmp (&seq1.lines[0], &seq2.lines[seq2.count - 1]));
+
+ if (print_pairables)
+ {
+ for (i = 0; i < seq1.count - 1; ++i)
+ for (j = 0; j < seq2.count - 1; ++j)
+ prjoin (&seq1.lines[i], &seq2.lines[j]);
+ }
+
+ for (i = 0; i < seq1.count - 1; ++i)
+ freeline (&seq1.lines[i]);
+ if (!eof1)
+ {
+ seq1.lines[0] = seq1.lines[seq1.count - 1];
+ seq1.count = 1;
+ }
+ else
+ seq1.count = 0;
+
+ for (i = 0; i < seq2.count - 1; ++i)
+ freeline (&seq2.lines[i]);
+ if (!eof2)
+ {
+ seq2.lines[0] = seq2.lines[seq2.count - 1];
+ seq2.count = 1;
+ }
+ else
+ seq2.count = 0;
+ }
+
+ if (print_unpairables_1 && seq1.count)
+ {
+ prjoin (&seq1.lines[0], &blank2);
+ freeline (&seq1.lines[0]);
+ while (get_line (fp1, &line))
+ {
+ prjoin (&line, &blank2);
+ freeline (&line);
+ }
+ }
+
+ if (print_unpairables_2 && seq2.count)
+ {
+ prjoin (&blank1, &seq2.lines[0]);
+ freeline (&seq2.lines[0]);
+ while (get_line (fp2, &line))
+ {
+ prjoin (&blank1, &line);
+ freeline (&line);
+ }
+ }
+
+ delseq (&seq1);
+ delseq (&seq2);
+}
+
+/* Add a field spec for field FIELD of file FILE to `outlist' and return 1,
+ unless either argument is invalid; then just return 0. */
+
+static int
+add_field (file, field)
+ int file;
+ int field;
+{
+ struct outlist *o;
+
+ if (file < 1 || file > 2 || field < 1)
+ return 0;
+ o = (struct outlist *) xmalloc (sizeof (struct outlist));
+ o->file = file;
+ o->field = field;
+ o->next = NULL;
+
+ /* Add to the end of the list so the fields are in the right order. */
+ if (outlist == NULL)
+ outlist = o;
+ else
+ outlist_end->next = o;
+ outlist_end = o;
+
+ return 1;
+}
+
+/* Add the comma or blank separated field spec(s) in STR to `outlist'.
+ Return the number of fields added. */
+
+static int
+add_field_list (str)
+ char *str;
+{
+ int added = 0;
+ int file = -1, field = -1;
+ int dot_found = 0;
+
+ for (; *str; str++)
+ {
+ if (*str == ',' || ISBLANK (*str))
+ {
+ added += add_field (file, field);
+ uni_blank.nfields = max (uni_blank.nfields, field);
+ file = field = -1;
+ dot_found = 0;
+ }
+ else if (*str == '.')
+ dot_found = 1;
+ else if (ISDIGIT (*str))
+ {
+ if (!dot_found)
+ {
+ if (file == -1)
+ file = 0;
+ file = file * 10 + *str - '0';
+ }
+ else
+ {
+ if (field == -1)
+ field = 0;
+ field = field * 10 + *str - '0';
+ }
+ }
+ else
+ return 0;
+ }
+
+ uni_blank.nfields = max (uni_blank.nfields, field);
+ added += add_field (file, field);
+ return added;
+}
+
+/* Create a blank line with COUNT fields separated by tabs. */
+
+void
+make_blank (blank, count)
+ struct line *blank;
+ int count;
+{
+ int i;
+ blank->nfields = count;
+ blank->beg = xmalloc (blank->nfields + 1);
+ blank->fields = (struct field *) xmalloc (sizeof (struct field) * count);
+ for (i = 0; i < blank->nfields; i++)
+ {
+ blank->beg[i] = '\t';
+ blank->fields[i].beg = &blank->beg[i];
+ blank->fields[i].len = 0;
+ }
+ blank->beg[i] = '\0';
+ blank->lim = &blank->beg[i];
+}
+
+char *trim();
+
+main (argc, argv)
+ int argc;
+ char *argv[];
+{
+ char *names[2];
+ FILE *fp1, *fp2;
+ int i, nfiles, val;
+
+ TableHead T1, T2;
+
+ char *join_column1 = NULL, *join_column2 = NULL;
+
+ program_name = argv[0];
+ ofile = Stdout;
+
+ /* Initialize this before parsing options. In parsing options,
+ it may be increased. */
+ uni_blank.nfields = 1;
+
+ nfiles = 0;
+ print_pairables = 1;
+
+for ( i = 1; i < argc; i++ ) {
+ if ( argv[i][0] == '-' ) {
+ switch (argv[i][1]) {
+ case 'a':
+ val = atoi(&argv[i][2]);
+ if (val == 1)
+ print_unpairables_1 = 1;
+ else if (val == 2)
+ print_unpairables_2 = 1;
+ else {
+ fprintf(stderr, "invalid file number for `-a\n");
+ exit(2);
+ }
+ break;
+
+ case 'e': empty_filler = argv[++i]; break;
+
+ case '1': i++; join_column1 = argv[i]; break;
+ case '2': i++; join_column2 = argv[i]; break;
+
+ case 'j':
+ switch ( argv[i][2] ) {
+ case '1': i++; join_column1 = argv[i]; break;
+ case '2': i++; join_column2 = argv[i]; break;
+ default:
+ i++; join_column1 = argv[i];
+ join_column2 = argv[i]; break;
+ };
+ break;
+
+ case 't': tab = argv[i][2]; break;
+
+ case 'v': val = atoi(&argv[i][2]);
+
+ if (val == 1)
+ print_unpairables_1 = 1;
+ else if (val == 2)
+ print_unpairables_2 = 1;
+ else {
+ fprintf(stderr, "invalid file number for `-v\n");
+ exit(2);
+ }
+ print_pairables = 0;
+ break;
+
+ case 'A': Numeric = 0; break;
+ case 'n': Numeric = 1; break;
+ case 'h': Numeric = 2; break;
+ case 'r': Reverse = 1; break;
+
+ case 'o' : i++;
+ if ( (ofile = (!strcmp("-", argv[i]))
+ ? Stdout : Open(argv[i], "w")) == NULL ) {
+ FPrint(Stderr, "jointable: can't open output file: %s\n"
+ , argv[i]);
+ perror("jointable");
+ exit(1);
+ }
+
+ case '?':
+ usage (0);
+
+ case 0:
+ if (nfiles > 1)
+ usage (1);
+
+ names[nfiles++] = argv[i];
+ break;
+
+ }
+ continue;
+ }
+ if (nfiles > 1) usage (1);
+
+ names[nfiles++] = argv[i];
+}
+
+ /* Now that we've seen the options, we can construct the blank line
+ structure. */
+ make_blank (&uni_blank, uni_blank.nfields);
+
+ if (nfiles != 2)
+ usage (1);
+
+ fp1 = Open(names[0], "r");
+ if (!fp1) {
+ perror(names[0]);
+ exit(2);
+ }
+ fp2 = Open(names[1], "r");
+ if (!fp2) {
+ perror(names[1]);
+ exit(2);
+ }
+ if (fp1 == fp2) {
+ fprintf(stderr, "both files cannot be standard input\n");
+ exit(2);
+ }
+
+ if ( (T1 = table_header(fp1, 0)) == NULL ) {
+ FPrint(Stderr, "jointable: can't read table header from: %s\n", names[0]);
+ exit(1);
+ }
+ if ( (T2 = table_header(fp2, 0)) == NULL ) {
+ FPrint(stderr, "jointable: can't read table header from: %s\n", names[1]);
+ exit(1);
+ }
+
+ if ( join_column1 == NULL ) {
+ FPrint(stderr, "jointable: no join column for table 1\n");
+ exit(1);
+ }
+
+ if ( join_column2 == NULL ) {
+ FPrint(stderr, "jointable: no join column for table 2\n");
+ exit(1);
+ }
+
+ if ( !(join_field_1 = table_colnum(T1, join_column1)) ) {
+ FPrint(Stderr, "jointable: can't find column: %s in file: %s\n", join_column1, names[0]);
+ exit(1);
+ }
+ if ( !(join_field_2 = table_colnum(T2, join_column2)) ) {
+ FPrint(Stderr, "jointable: can't find column: %s in file: %s\n", join_column2, names[1]);
+ exit(1);
+ }
+
+ FPrint(ofile, "%s%c", T1->header->column[join_field_1]
+ , T1->header->ncol == 1 && T2->header->ncol == 1 ? '\n' : '\t');
+
+ for ( i = 1; i <= T1->header->ncol; i++ )
+ /* look up column name in the other table.
+ */
+ if ( i != join_field_1 ) {
+ int c2 = table_colnum(T2, trim(table_colval(T1->header, i)));
+
+ hdrfix(ofile, table_colval(T1->header, i)
+ , c2 != 0 && c2 != join_field_2 ? 1 : 0
+ , i == table_ncol(T1) && T2->header->ncol == 1 ? '\n' : '\t');
+ }
+
+ { int lastcol = T2->header->ncol == join_field_2 ? join_field_2 - 1 : T2->header->ncol;
+
+ if ( lastcol != 0 ) {
+ for ( i = 1; i <= lastcol; i++ )
+ if ( i != join_field_2 ) {
+ int c1 = table_colnum(T1, trim(table_colval(T2->header, i)));
+
+ hdrfix(ofile, table_colval(T2->header, i)
+ , c1 != 0 && c1 != join_field_1 ? 2 : 0
+ , i == lastcol ? '\n' : '\t');
+ }
+ }
+ }
+
+ FPrint(ofile, "%s%c", T1->dashes->column[join_field_1]
+ , T1->header->ncol == 1 && T2->header->ncol == 1 ? '\n' : '\t');
+ for ( i = 1; i <= table_ncol(T1); i++ )
+ if ( i != join_field_1 ) FPrint(ofile, "%s%c"
+ , T1->dashes->column[i]
+ , i == table_ncol(T1) && T2->header->ncol == 1 ? '\n' : '\t');
+ { int lastcol = T2->header->ncol == join_field_2 ? join_field_2 - 1 : T2->header->ncol;
+
+ if ( lastcol != 0 ) {
+ for ( i = 1; i <= lastcol; i++ )
+ if ( i != join_field_2 ) FPrint(ofile, "%s%c"
+ , T2->dashes->column[i]
+ , i == lastcol ? '\n' : '\t');
+ }
+ }
+
+ blank1.nfields = T1->header->ncol;
+ blank2.nfields = T2->header->ncol;
+
+ table_hdrfree(T1);
+ table_hdrfree(T2);
+
+ /* These line are moved from above so that the number of fields in a
+ blank line may be set by the table headers.
+ */
+ /* Now that we've seen the options, we can construct the blank line
+ structures. */
+ make_blank(&blank1, blank1.nfields);
+ make_blank(&blank2, blank2.nfields);
+
+ join_field_1--;
+ join_field_2--;
+
+ join (fp1, fp2);
+
+ if ((fp1 == stdin || fp2 == stdin) && fclose (stdin) == EOF) {
+ perror("-");
+ exit(2);
+ }
+ if (ferror (ofile) || fclose (ofile) == EOF) {
+ perror("write error");
+ exit(2);
+ }
+
+ exit (0);
+}
+
+static void
+usage (status)
+ int status;
+{
+ if (status != 0)
+ fprintf (stderr, "jointable -? for more information.\n",
+ program_name);
+ else
+ {
+ printf ("\
+Usage: %s [OPTION]... FILE1 FILE2\n\
+",
+ program_name);
+ printf ("\
+For each pair of input lines with identical join fields, write a line to\n\
+standard output. The default join field is the first, delimited\n\
+by whitespace. When FILE1 or FILE2 (not both) is -, read standard input.\n\
+\n\
+ -a SIDE print unpairable lines coming from file SIDE\n\
+ -e EMPTY replace missing input fields with EMPTY\n\
+ -j FIELD join on this FIELD for both files\n\
+ -[j]SIDE FIELD join on this FIELD for file SIDE\n\
+ -o FORMAT obey FORMAT while constructing output line\n\
+ -t CHAR use CHAR as input and output field separator\n\
+ -v SIDE like -a SIDE, but suppress joined output lines\n\
+ -A ascii sort order (default)\n\
+ -n numeric sort order\n\
+ -h numeric sort order w/ sexagesmal format accepted\n\
+\n\
+SIDE is 1 for FILE1 or 2 for FILE2. Unless -t CHAR is given, leading blanks\n\
+separate fields and are ignored, else fields are separated by CHAR.\n\
+Any FIELD is a field number counted from 1. FORMAT is one or more\n\
+comma or blank separated specifications, each being `SIDE.FIELD'.\n\
+Default FORMAT outputs the join field, the remaining fields from\n\
+FILE1, the remaining fields from FILE2, all separated by CHAR.\n\
+");
+ }
+ exit (status);
+}