From 889a841575bd1140b3f24614266cd988bd971655 Mon Sep 17 00:00:00 2001
From: Massimo Mund <mo@lancode.de>
Date: Tue, 14 May 2024 08:51:13 +0200
Subject: [PATCH] Replaced IsNonAlphaNumeric() with IsNonWordChar()

---
 internal/action/actions.go      |  4 ++--
 internal/buffer/autocomplete.go |  8 ++++----
 internal/util/util.go           | 18 ++++++++++--------
 3 files changed, 16 insertions(+), 14 deletions(-)

diff --git a/internal/action/actions.go b/internal/action/actions.go
index 883f8208..621cb55b 100644
--- a/internal/action/actions.go
+++ b/internal/action/actions.go
@@ -745,8 +745,8 @@ func (h *BufPane) Autocomplete() bool {
 	}
 	r := h.Cursor.RuneUnder(h.Cursor.X)
 	prev := h.Cursor.RuneUnder(h.Cursor.X - 1)
-	if !util.IsAutocomplete(prev) || !util.IsNonAlphaNumeric(r) {
-		// don't autocomplete if cursor is on alpha numeric character (middle of a word)
+	if !util.IsAutocomplete(prev) || util.IsWordChar(r) {
+		// don't autocomplete if cursor is within a word
 		return false
 	}
 
diff --git a/internal/buffer/autocomplete.go b/internal/buffer/autocomplete.go
index 7a8c5bee..8a1c3742 100644
--- a/internal/buffer/autocomplete.go
+++ b/internal/buffer/autocomplete.go
@@ -73,11 +73,11 @@ func (b *Buffer) GetWord() ([]byte, int) {
 		return []byte{}, -1
 	}
 
-	if util.IsNonAlphaNumeric(b.RuneAt(c.Loc.Move(-1, b))) {
+	if util.IsNonWordChar(b.RuneAt(c.Loc.Move(-1, b))) {
 		return []byte{}, c.X
 	}
 
-	args := bytes.FieldsFunc(l, util.IsNonAlphaNumeric)
+	args := bytes.FieldsFunc(l, util.IsNonWordChar)
 	input := args[len(args)-1]
 	return input, c.X - util.CharacterCount(input)
 }
@@ -166,7 +166,7 @@ func BufferComplete(b *Buffer) ([]string, []string) {
 	var suggestions []string
 	for i := c.Y; i >= 0; i-- {
 		l := b.LineBytes(i)
-		words := bytes.FieldsFunc(l, util.IsNonAlphaNumeric)
+		words := bytes.FieldsFunc(l, util.IsNonWordChar)
 		for _, w := range words {
 			if bytes.HasPrefix(w, input) && util.CharacterCount(w) > inputLen {
 				strw := string(w)
@@ -179,7 +179,7 @@ func BufferComplete(b *Buffer) ([]string, []string) {
 	}
 	for i := c.Y + 1; i < b.LinesNum(); i++ {
 		l := b.LineBytes(i)
-		words := bytes.FieldsFunc(l, util.IsNonAlphaNumeric)
+		words := bytes.FieldsFunc(l, util.IsNonWordChar)
 		for _, w := range words {
 			if bytes.HasPrefix(w, input) && util.CharacterCount(w) > inputLen {
 				strw := string(w)
diff --git a/internal/util/util.go b/internal/util/util.go
index bebd949b..b7bebcaf 100644
--- a/internal/util/util.go
+++ b/internal/util/util.go
@@ -218,12 +218,19 @@ func FSize(f *os.File) int64 {
 	return fi.Size()
 }
 
-// IsWordChar returns whether or not the string is a 'word character'
-// Word characters are defined as numbers, letters, or '_'
+// IsWordChar returns whether or not a rune is a 'word character'
+// Word characters are defined as numbers, letters or '_'
 func IsWordChar(r rune) bool {
 	return unicode.IsLetter(r) || unicode.IsNumber(r) || r == '_'
 }
 
+// IsNonWordChar returns whether or not a rune is not a 'word character'
+// Non word characters are defined as all characters not being numbers, letters or '_'
+// See IsWordChar()
+func IsNonWordChar(r rune) bool {
+	return !IsWordChar(r)
+}
+
 // Spaces returns a string with n spaces
 func Spaces(n int) string {
 	return strings.Repeat(" ", n)
@@ -445,14 +452,9 @@ func Clamp(val, min, max int) int {
 	return val
 }
 
-// IsNonAlphaNumeric returns if the rune is not a number of letter or underscore.
-func IsNonAlphaNumeric(c rune) bool {
-	return !unicode.IsLetter(c) && !unicode.IsNumber(c) && c != '_'
-}
-
 // IsAutocomplete returns whether a character should begin an autocompletion.
 func IsAutocomplete(c rune) bool {
-	return c == '.' || !IsNonAlphaNumeric(c)
+	return c == '.' || IsWordChar(c)
 }
 
 // ParseSpecial replaces escaped ts with '\t'.