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-rw-r--r--libsmartcols/samples/grouping-overlay.c143
1 files changed, 143 insertions, 0 deletions
diff --git a/libsmartcols/samples/grouping-overlay.c b/libsmartcols/samples/grouping-overlay.c
new file mode 100644
index 0000000..d55c57d
--- /dev/null
+++ b/libsmartcols/samples/grouping-overlay.c
@@ -0,0 +1,143 @@
+/*
+ * Copyright (C) 2018 Karel Zak <kzak@redhat.com>
+ *
+ * This file may be redistributed under the terms of the
+ * GNU Lesser General Public License.
+ */
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <dirent.h>
+#include <getopt.h>
+
+#include "c.h"
+#include "nls.h"
+#include "strutils.h"
+#include "xalloc.h"
+
+#include "libsmartcols.h"
+
+
+enum { COL_NAME, COL_DATA };
+
+/* add columns to the @tb */
+static void setup_columns(struct libscols_table *tb)
+{
+ struct libscols_column *cl;
+
+ if (!scols_table_new_column(tb, "NAME", 0, SCOLS_FL_TREE))
+ goto fail;
+ cl = scols_table_new_column(tb, "DATA", 0, SCOLS_FL_WRAP);
+ if (!cl)
+ goto fail;
+ scols_column_set_wrapfunc(cl, scols_wrapnl_chunksize,
+ scols_wrapnl_nextchunk, NULL);
+ scols_column_set_safechars(cl, "\n");
+ return;
+fail:
+ scols_unref_table(tb);
+ err(EXIT_FAILURE, "failed to create output columns");
+}
+
+static struct libscols_line *add_line(struct libscols_table *tb, struct libscols_line *parent, const char *name, const char *data)
+{
+ struct libscols_line *ln = scols_table_new_line(tb, parent);
+ if (!ln)
+ err(EXIT_FAILURE, "failed to create output line");
+
+ if (scols_line_set_data(ln, COL_NAME, name))
+ goto fail;
+ if (scols_line_set_data(ln, COL_DATA, data))
+ goto fail;
+ return ln;
+fail:
+ scols_unref_table(tb);
+ err(EXIT_FAILURE, "failed to create output line");
+}
+
+int main(int argc, char *argv[])
+{
+ struct libscols_table *tb;
+ struct libscols_line *ln; /* any line */
+ struct libscols_line *g1, *g2, *g3; /* groups */
+ struct libscols_line *p1; /* parents */
+ int c;
+
+ static const struct option longopts[] = {
+ { "maxout", 0, NULL, 'm' },
+ { "width", 1, NULL, 'w' },
+ { "help", 1, NULL, 'h' },
+
+ { NULL, 0, NULL, 0 },
+ };
+
+ setlocale(LC_ALL, ""); /* just to have enable UTF8 chars */
+
+ scols_init_debug(0);
+
+ tb = scols_new_table();
+ if (!tb)
+ err(EXIT_FAILURE, "failed to create output table");
+
+ while((c = getopt_long(argc, argv, "hmw:", longopts, NULL)) != -1) {
+ switch(c) {
+ case 'h':
+ printf("%s [--help | --maxout | --width <num>]\n", program_invocation_short_name);
+ break;
+ case 'm':
+ scols_table_enable_maxout(tb, TRUE);
+ break;
+ case 'w':
+ scols_table_set_termforce(tb, SCOLS_TERMFORCE_ALWAYS);
+ scols_table_set_termwidth(tb, strtou32_or_err(optarg, "failed to parse terminal width"));
+ break;
+ }
+ }
+
+ scols_table_enable_colors(tb, isatty(STDOUT_FILENO));
+ setup_columns(tb);
+
+ add_line(tb, NULL, "Alone", "bla bla bla");
+
+ p1 = add_line(tb, NULL, "A", "bla bla\nbla");
+ add_line(tb, p1, "A:B", "bla bla\nbla");
+ add_line(tb, p1, "A:C", "bla bla\nbla");
+
+ g1 = add_line(tb, NULL, "B", "bla bla\nbla");
+
+ g2 = add_line(tb, NULL, "C", "bla bla\nbla");
+ ln = add_line(tb, NULL, "D", "bla bla\nbla");
+ scols_table_group_lines(tb, g2, ln, 0);
+
+ ln = add_line(tb, NULL, "G2:A", "alb alb\nalb");
+ scols_line_link_group(ln, g2, 0);
+
+ ln = add_line(tb, NULL, "E", "bla bla\nbla");
+ scols_table_group_lines(tb, g1, ln, 0);
+
+
+ ln = add_line(tb, NULL, "G1:A", "alb alb alb");
+ scols_line_link_group(ln, g1, 0);
+
+ add_line(tb, NULL, "G", "bla bla bla");
+
+ g3 = ln = add_line(tb, NULL, "G1:B", "alb alb\nalb");
+ scols_line_link_group(ln, g1, 0);
+
+ ln = add_line(tb, NULL, "F", "bla bla bla");
+ scols_table_group_lines(tb, g3, ln, 0);
+
+ ln = add_line(tb, NULL, "G3:A", "alb alb alb");
+ scols_line_link_group(ln, g3, 0);
+
+ add_line(tb, NULL, "foo", "bla bla bla");
+ add_line(tb, NULL, "bar", "bla bla bla");
+
+ scols_print_table(tb);
+
+ scols_unref_table(tb);
+ return EXIT_SUCCESS;
+}