From bf4535008a78ed84fe3e76a9ae262646b9a5f150 Mon Sep 17 00:00:00 2001
From: WormHeamer
Date: Sat, 27 Dec 2025 23:26:28 -0500
Subject: basic piece table implementation

---
 txt.h | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 txt.h

(limited to 'txt.h')

diff --git a/txt.h b/txt.h
new file mode 100644
index 0000000..21712af
--- /dev/null
+++ b/txt.h
@@ -0,0 +1,43 @@
+#ifndef TXT_H
+#define TXT_H
+
+#include "dynarr.h"
+
+typedef enum : u8 {
+	TXT_SRC,
+	TXT_ADD
+} TxtBufIdx;
+
+typedef struct TxtPiece {
+	TxtBufIdx buf;
+	u32 ofs, n;
+} TxtPiece;
+
+typedef struct {
+	char *s;
+	u32 n, c;
+} TxtBuf;
+
+typedef struct {
+	u32 p, i;
+} TxtLoc;
+
+typedef struct {
+	DYNARR(TxtPiece) ptbl;
+	TxtBuf buf[2];
+	u32 len;
+} Txt;
+
+TxtLoc txt_at(Txt *b, u32 cur);
+
+u32 txt_split_piece(Txt *b, u32 pi, u32 i);
+void txt_remove_piece(Txt *b, u32 pi);
+void txt_insert_piece(Txt *b, u32 pi, TxtBufIdx buf, u32 ofs, u32 n);
+void txt_buf_append(Txt *b, TxtBufIdx bi, const char *s, u32 n);
+
+u32 txt_insert(Txt *b, u32 cur, const char *s, u32 n);
+u32 txt_insert_c(Txt *b, u32 cur, char ch);
+u32 txt_delete(Txt *b, u32 cur, u32 n);
+int txt_open(Txt *b, const char *path);
+
+#endif
-- 
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