From 6bafd0d45f63a7618d7822f31b01da7443d9c5e8 Mon Sep 17 00:00:00 2001
From: Leo Tenenbaum <pommicket@gmail.com>
Date: Sat, 2 Jan 2021 18:10:09 -0500
Subject: select all

---
 buffer.c  | 20 ++++++++++++--------
 command.c |  3 +++
 command.h |  4 +++-
 ted.cfg   |  3 ++-
 4 files changed, 20 insertions(+), 10 deletions(-)

diff --git a/buffer.c b/buffer.c
index d964f50..0e13ee5 100644
--- a/buffer.c
+++ b/buffer.c
@@ -144,12 +144,12 @@ char32_t buffer_char_at_pos(TextBuffer *buffer, BufferPos p) {
 	}
 }
 
-BufferPos buffer_pos_start_of_file(TextBuffer *buffer) {
+BufferPos buffer_start_of_file(TextBuffer *buffer) {
 	(void)buffer;
 	return (BufferPos){.line = 0, .index = 0};
 }
 
-BufferPos buffer_pos_end_of_file(TextBuffer *buffer) {
+BufferPos buffer_end_of_file(TextBuffer *buffer) {
 	return (BufferPos){.line = buffer->nlines - 1, .index = buffer->lines[buffer->nlines-1].len};
 }
 
@@ -220,7 +220,7 @@ static BufferPos buffer_pos_advance(TextBuffer *buffer, BufferPos pos, size_t nc
 		index = 0;
 		++line;
 	}
-	return buffer_pos_end_of_file(buffer);
+	return buffer_end_of_file(buffer);
 }
 
 
@@ -834,7 +834,7 @@ i64 buffer_pos_move_horizontally(TextBuffer *buffer, BufferPos *p, i64 by) {
 	} else if (by > 0) {
 		i64 by_start = by;
 		if (p->line >= buffer->nlines)
-			*p = buffer_pos_end_of_file(buffer); // invalid position; move to end of buffer
+			*p = buffer_end_of_file(buffer); // invalid position; move to end of buffer
 		Line *line = &buffer->lines[p->line];
 		while (by > 0) {
 			if (by <= line->len - p->index) {
@@ -1081,11 +1081,11 @@ void buffer_cursor_move_to_end_of_line(TextBuffer *buffer) {
 }
 
 void buffer_cursor_move_to_start_of_file(TextBuffer *buffer) {
-	buffer_cursor_move_to_pos(buffer, buffer_pos_start_of_file(buffer));
+	buffer_cursor_move_to_pos(buffer, buffer_start_of_file(buffer));
 }
 
 void buffer_cursor_move_to_end_of_file(TextBuffer *buffer) {
-	buffer_cursor_move_to_pos(buffer, buffer_pos_end_of_file(buffer));
+	buffer_cursor_move_to_pos(buffer, buffer_end_of_file(buffer));
 }
 
 // insert `number` empty lines starting at index `where`.
@@ -1243,11 +1243,11 @@ void buffer_select_to_end_of_line(TextBuffer *buffer) {
 }
 
 void buffer_select_to_start_of_file(TextBuffer *buffer) {
-	buffer_select_to_pos(buffer, buffer_pos_start_of_file(buffer));
+	buffer_select_to_pos(buffer, buffer_start_of_file(buffer));
 }
 
 void buffer_select_to_end_of_file(TextBuffer *buffer) {
-	buffer_select_to_pos(buffer, buffer_pos_end_of_file(buffer));
+	buffer_select_to_pos(buffer, buffer_end_of_file(buffer));
 }
 
 // select the word the cursor is inside of
@@ -1269,6 +1269,10 @@ void buffer_select_line(TextBuffer *buffer) {
 	buffer_select_to_pos(buffer, buffer_pos_start_of_line(buffer, line));
 }
 
+void buffer_select_all(TextBuffer *buffer) {
+	buffer_cursor_move_to_pos(buffer, buffer_start_of_file(buffer));
+	buffer_select_to_pos(buffer, buffer_end_of_file(buffer));
+}
 
 static void buffer_shorten_line(Line *line, u32 new_len) {
 	assert(line->len >= new_len);
diff --git a/command.c b/command.c
index 5d1a4d4..8e210f0 100644
--- a/command.c
+++ b/command.c
@@ -87,6 +87,9 @@ void command_execute(Ted *ted, Command c, i64 argument) {
 	case CMD_SELECT_END_OF_FILE:
 		buffer_select_to_end_of_file(buffer);
 		break;
+	case CMD_SELECT_ALL:
+		buffer_select_all(buffer);
+		break;
 
 	case CMD_BACKSPACE:
 		buffer_backspace_at_cursor(buffer, argument);
diff --git a/command.h b/command.h
index 1057b4b..5f69369 100644
--- a/command.h
+++ b/command.h
@@ -1,7 +1,7 @@
 ENUM_U16 {
 	CMD_UNKNOWN,
 	CMD_NOOP,
-	// movement commands
+	// movement and selection commands
 	CMD_LEFT,
 	CMD_RIGHT,
 	CMD_UP,
@@ -22,6 +22,7 @@ ENUM_U16 {
 	CMD_END_OF_FILE,
 	CMD_SELECT_START_OF_FILE,
 	CMD_SELECT_END_OF_FILE,
+	CMD_SELECT_ALL,
 
 	// scrolling
 	CMD_PAGE_UP,
@@ -67,6 +68,7 @@ static CommandName const command_names[CMD_COUNT] = {
 	{"end-of-file", CMD_END_OF_FILE},
 	{"select-start-of-file", CMD_SELECT_START_OF_FILE},
 	{"select-end-of-file", CMD_SELECT_END_OF_FILE},
+	{"select-all", CMD_SELECT_ALL},
 	{"page-up", CMD_PAGE_UP},
 	{"page-down", CMD_PAGE_DOWN},
 	{"backspace", CMD_BACKSPACE},
diff --git a/ted.cfg b/ted.cfg
index aecf14e..4132f6e 100644
--- a/ted.cfg
+++ b/ted.cfg
@@ -6,7 +6,7 @@ cursor-width = 1
 undo-save-time = 6
 
 [keyboard]
-# motion keys
+# motion and selection
 Left = :left
 Shift+Left = :select-left
 Ctrl+Left = :left-word
@@ -31,6 +31,7 @@ End = :end-of-line
 Shift+End = :select-end-of-line
 Ctrl+End = :end-of-file
 Ctrl+Shift+End = :select-end-of-file
+Ctrl+a = :select-all
 
 # deletion
 Delete = :delete
-- 
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