1 files changed, 133 insertions, 0 deletions
diff --git a/lib/libtabular/include/tabular.h b/lib/libtabular/include/tabular.h
new file mode 100644
index 0000000..b3d1c54
--- /dev/null
+++ b/lib/libtabular/include/tabular.h
@@ -0,0 +1,133 @@
+#pragma once
+
+#include "allocator.h"
+
+#include <wchar.h>
+#include <stdio.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <wctype.h>
+
+enum {
+	TABULAR_ALIGN_LEFT,
+	TABULAR_ALIGN_CENTER,
+	TABULAR_ALIGN_RIGHT
+};
+
+enum {
+	TABULAR_TRUNC,
+	TABULAR_WRAP,
+	TABULAR_WRAP_WORDAWARE
+};
+
+enum {
+	TABULAR_ENTRY_HIDDEN,
+	TABULAR_ENTRY_STR_SET,
+	TABULAR_ENTRY_HIDDEN_SET,
+};
+
+struct tabular_user {
+	union {
+		void *ptr;
+		size_t id;
+	};
+};
+
+struct tabular_entry {
+	char *str;
+	uint32_t flags;
+	uint32_t ulen;
+};
+
+struct tabular_row {
+	struct tabular_user user;
+	struct tabular_entry *entries;
+	struct tabular_row *next;
+};
+
+struct tabular_col {
+	struct tabular_user user;
+
+	/* column name displayed in header */
+	const char *name;
+
+	/* create str entry to display from user objects */
+	char *(*to_str)(const struct tabular_user *user_row,
+		const struct tabular_user *user_col);
+
+	/* only show content if atleast one row is not 'hidden' */
+	bool (*is_hidden)(const struct tabular_user *user_row,
+		const struct tabular_user *user_col);
+
+	/* size restrictions */
+	size_t minwidth, maxwidth;
+
+	/* whitespace padding */
+	size_t lpad, rpad;
+
+	/* text alignment */
+	int align;
+
+	/* content packing strategy */
+	int strategy;
+
+	/* omiting column due to col contraints disallowed */
+	bool essential;
+
+	/* reducing length due to col contraints allowed */
+	bool squashable;
+};
+
+struct tabular_cfg {
+	struct tabular_user user;
+
+	const struct tabular_col *columns;
+	size_t column_count;
+
+	/* color mode: 1, 16, 256 */
+	int colors;
+
+	/* fit rows to output size */
+	bool fit_rows;
+
+	/* amount of available lines to skip */
+	size_t skip_lines;
+
+	/* output dimensions */
+	size_t outw, outh;
+
+	/* entry separators */
+	const char *hsep, *vsep, *xsep;
+
+	/* total lpad, rpad */
+	size_t lpad, rpad;
+
+	/* lazy load rows */
+	struct tabular_row *(*row_gen)(const struct tabular_user *user);
+
+	/* style printing hook for header, separators and content */
+	bool (*print_style)(FILE *file, const struct tabular_cfg *cfg,
+		const struct tabular_row *row, const struct tabular_col *col);
+
+	const struct allocator *allocator;
+};
+
+struct tabular_stats {
+	bool rows_truncated;
+	bool cols_truncated;
+	size_t rows_displayed;
+	size_t lines_used;
+};
+
+int tabular_format(FILE *file, const struct tabular_cfg *cfg,
+	struct tabular_stats *stat, struct tabular_row **rows);
+
+void tabular_load_row_entry_hidden(const struct tabular_cfg *cfg,
+	struct tabular_row *row, size_t col);
+void tabular_load_row_entry_str(const struct tabular_cfg *cfg,
+	struct tabular_row *row, size_t col);
+
+struct tabular_row *tabular_alloc_row(const struct tabular_cfg *cfg,
+	int *error, struct tabular_user user);
+int tabular_free_rows(const struct tabular_cfg *cfg, struct tabular_row *rows);