From f7157f9c50f67e8589d24db24df871777703758c Mon Sep 17 00:00:00 2001
From: "Timothy J. Warren" <tim@timshomepage.net>
Date: Tue, 30 Mar 2021 16:22:35 -0400
Subject: [PATCH] Move functions to file under editor instead of their own
 package

---
 editor/draw.go             |  3 +--
 editor/editor.go           |  7 ++++---
 fn/char.go => editor/fn.go | 26 ++++++++++++++++++++++++--
 editor/keymap.go           |  2 +-
 fn/fn.go                   | 23 -----------------------
 5 files changed, 30 insertions(+), 31 deletions(-)
 rename fn/char.go => editor/fn.go (57%)
 delete mode 100644 fn/fn.go

diff --git a/editor/draw.go b/editor/draw.go
index 2d1e926..2967bdc 100644
--- a/editor/draw.go
+++ b/editor/draw.go
@@ -4,7 +4,6 @@ package editor
 import (
 	"fmt"
 	"strings"
-	"timshome.page/gilo/fn"
 	"timshome.page/gilo/terminal"
 )
 
@@ -31,7 +30,7 @@ func (e *editor) drawRows(ab *buffer) {
 		if y == e.screen.Rows / 3 {
 			welcome := fmt.Sprintf("Gilo editor -- version %s", KiloVersion)
 			if len(welcome) > e.screen.Cols {
-				welcome = fn.TruncateString(welcome, e.screen.Cols)
+				welcome = TruncateString(welcome, e.screen.Cols)
 			}
 
 			padding := (e.screen.Cols - len(welcome)) / 2
diff --git a/editor/editor.go b/editor/editor.go
index a0f5d8c..42f0260 100644
--- a/editor/editor.go
+++ b/editor/editor.go
@@ -1,7 +1,6 @@
 package editor
 
 import (
-	"timshome.page/gilo/fn"
 	"timshome.page/gilo/terminal"
 )
 
@@ -24,7 +23,6 @@ func New() *editor {
 	screen := terminal.Size()
 	cursor := &cursor { 0, 0 }
 	var rows []*row
-	rows = append(rows, NewRow())
 
 	return &editor{screen, cursor, rows }
 }
@@ -33,7 +31,7 @@ func (e *editor) ProcessKeypress() bool {
 	var str string
 
 	ch, _ := terminal.ReadKey()
-	if ch == fn.Ctrl('q') {
+	if ch == Ctrl('q') {
 		// Clean up on exit
 		terminal.Write(terminal.ClearScreen + terminal.ResetCursor)
 
@@ -99,6 +97,7 @@ func parseEscapeSequence () string {
 		runes = append(runes, ch)
 
 		if i == 1 && runes[1] >= 'A' {
+			// \eOH \eOF
 			if runes[0] == 'O' {
 				switch runes[1] {
 				case 'H':
@@ -107,6 +106,7 @@ func parseEscapeSequence () string {
 					return keyEnd
 				}
 			}
+			// \e[A
 			if runes[0] == '[' {
 				switch runes[1] {
 				case 'A':
@@ -125,6 +125,7 @@ func parseEscapeSequence () string {
 			}
 		}
 
+		// \e[1~
 		if i == 2 && runes[0] == '[' && runes[2] == '~' {
 			switch runes[1] {
 			case '1':
diff --git a/fn/char.go b/editor/fn.go
similarity index 57%
rename from fn/char.go
rename to editor/fn.go
index 6bf25a5..59eb552 100644
--- a/fn/char.go
+++ b/editor/fn.go
@@ -1,4 +1,26 @@
-package fn
+package editor
+
+import "strings"
+
+func TruncateString(s string, length int) string {
+	if length < 1 {
+		return ""
+	}
+
+	var buf strings.Builder
+	count := 0
+
+	for _, char := range s {
+		if count == length {
+			break
+		}
+
+		buf.WriteRune(char)
+		count++
+	}
+
+	return buf.String()
+}
 
 func isAscii(char rune) bool {
 	ord := int(char)
@@ -26,4 +48,4 @@ func Ctrl(char rune) rune {
 	}
 
 	return rune(raw)
-}
+}
\ No newline at end of file
diff --git a/editor/keymap.go b/editor/keymap.go
index 077223a..b7164df 100644
--- a/editor/keymap.go
+++ b/editor/keymap.go
@@ -14,7 +14,7 @@ const(
 )
 
 // ----------------------------------------------------------------------------
-// !Map escape sequences to simpler constants
+// !Constants representing input keys
 // ----------------------------------------------------------------------------
 
 const (
diff --git a/fn/fn.go b/fn/fn.go
deleted file mode 100644
index 43bef01..0000000
--- a/fn/fn.go
+++ /dev/null
@@ -1,23 +0,0 @@
-package fn
-
-import "strings"
-
-func TruncateString(s string, length int) string {
-	if length < 1 {
-		return ""
-	}
-
-	var buf strings.Builder
-	count := 0
-
-	for _, char := range s {
-		if count == length {
-			break
-		}
-
-		buf.WriteRune(char)
-		count++
-	}
-
-	return buf.String()
-}
\ No newline at end of file