🎉 And so it begins

1 files changed, 39 insertions, 0 deletions

diff --git a/src/text.h b/src/text.h
new file mode 100644
index 0000000..21de899
--- /dev/null
+++ b/src/text.h
@@ -0,0 +1,39 @@
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+
+// opaque so it is easier to change representation to gap, rope etc.
+struct text;
+
+struct render_cmd;
+
+struct text *text_create(uint32_t initial_capacity);
+void text_destroy(struct text *text);
+
+void text_append(struct text *text, uint32_t line, uint32_t col, uint8_t *bytes,
+                 uint32_t nbytes, uint32_t *lines_added, uint32_t *cols_added);
+
+void text_delete(struct text *text, uint32_t line, uint32_t col,
+                 uint32_t nchars);
+void text_delete_line(struct text *text, uint32_t line);
+
+uint32_t text_render(struct text *text, uint32_t line, uint32_t nlines,
+                     struct render_cmd *cmds, uint32_t max_ncmds);
+
+uint32_t text_num_lines(struct text *text);
+uint32_t text_line_length(struct text *text, uint32_t lineidx);
+uint32_t text_line_size(struct text *text, uint32_t lineidx);
+
+struct txt_line {
+  uint8_t *text;
+  uint32_t nbytes;
+  uint32_t nchars;
+};
+
+typedef void (*line_cb)(struct txt_line *line);
+void text_for_each_line(struct text *text, uint32_t line, uint32_t nlines,
+                        line_cb callback);
+
+struct txt_line text_get_line(struct text *text, uint32_t line);
+
+bool text_line_contains_unicode(struct text *text, uint32_t line);