table: add a simple text table renderer

This should help clean up some of the uglier status outputs.

Supports:

 * multi-line table cells
 * character fills
 * sparse tables
 * insert, delete by row and column
 * vertical separators

and not much else.

Signed-off-by: Zygo Blaxell <bees@furryterror.org>

test/Makefile

@@ -8,6 +8,7 @@ PROGRAMS = \
 	process \
 	progress \
 	seeker \
+	table \
 	task \
 
 all: test

test/table.cc

@@ -0,0 +1,63 @@
+#include "tests.h"
+
+#include "crucible/table.h"
+
+using namespace crucible;
+using namespace std;
+
+void
+print_table(const Table::Table& t)
+{
+	cerr << "BEGIN TABLE\n";
+	cerr << t;
+	cerr << "END TABLE\n";
+	cerr << endl;
+}
+
+void
+test_table()
+{
+	Table::Table t;
+	t.insert_row(Table::endpos, vector<Table::Content> {
+		Table::Text("Hello, World!"),
+		Table::Text("2"),
+		Table::Text("3"),
+		Table::Text("4"),
+	});
+	print_table(t);
+	t.insert_row(Table::endpos, vector<Table::Content> {
+		Table::Text("Greeting"),
+		Table::Text("two"),
+		Table::Text("three"),
+		Table::Text("four"),
+	});
+	print_table(t);
+	t.insert_row(Table::endpos, vector<Table::Content> {
+		Table::Fill('-'),
+		Table::Text("ii"),
+		Table::Text("iii"),
+		Table::Text("iv"),
+	});
+	print_table(t);
+	t.mid(" | ");
+	t.left("| ");
+	t.right(" |");
+	print_table(t);
+	t.insert_col(1, vector<Table::Content> {
+		Table::Text("1"),
+		Table::Text("one"),
+		Table::Text("i"),
+		Table::Text("I"),
+	});
+	print_table(t);
+	t.at(2, 1) = Table::Text("Two\nLines");
+	print_table(t);
+}
+
+int
+main(int, char**)
+{
+	RUN_A_TEST(test_table());
+
+	exit(EXIT_SUCCESS);
+}