From a6c7e0918516702e055b4c886ddcd0a7ba185c3e Mon Sep 17 00:00:00 2001
From: "Shea Lewis (Kai)" <355659+kaidesu@users.noreply.github.com>
Date: Fri, 27 Oct 2023 11:48:56 -0700
Subject: [PATCH] allow numbers in identifiers

---
 examples/scratch.ghost  | 8 +++++++-
 scanner/scanner.go      | 2 +-
 scanner/scanner_test.go | 3 ++-
 3 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/examples/scratch.ghost b/examples/scratch.ghost
index a9f1506..a6caea3 100644
--- a/examples/scratch.ghost
+++ b/examples/scratch.ghost
@@ -8,4 +8,10 @@ data = {
 }
 
 print(data.name)
-print(data.handler(6))
\ No newline at end of file
+print(data.handler(6))
+
+function test1() {
+  print('test1')
+}
+
+test1()
\ No newline at end of file
diff --git a/scanner/scanner.go b/scanner/scanner.go
index 92290a3..63033f4 100644
--- a/scanner/scanner.go
+++ b/scanner/scanner.go
@@ -377,7 +377,7 @@ func isEmpty(character rune) bool {
 
 // isIdentifier tells us if the passed character can be used in a valid identifier.
 func isIdentifier(character rune) bool {
-	return !isDigit(character) && !isWhitespace(character) && !isBrace(character) && !isBracket(character) && !isParenthesis(character) && !isOperator(character) && !isCompound(character) && !isComparison(character) && !isEmpty(character)
+	return !isWhitespace(character) && !isBrace(character) && !isBracket(character) && !isParenthesis(character) && !isOperator(character) && !isCompound(character) && !isComparison(character) && !isEmpty(character)
 }
 
 // lookupIdentifier looks up the string in the list of keywords and returns its
diff --git a/scanner/scanner_test.go b/scanner/scanner_test.go
index e73e3fb..d913769 100644
--- a/scanner/scanner_test.go
+++ b/scanner/scanner_test.go
@@ -14,7 +14,7 @@ func TestScanTokens(t *testing.T) {
 			expectedLexeme string
 		}
 	}{
-		`( ) [ ] { } , . - + ; * % ? : > < >= <= ! != = == "hello world" 42 3.14 6.67428e-11 foo foobar true false class whilefoo こんにちは 世界 += -= *= /= import from as ..`,
+		`( ) [ ] { } , . - + ; * % ? : > < >= <= ! != = == "hello world" 42 3.14 6.67428e-11 foo foobar hello1 true false class whilefoo こんにちは 世界 += -= *= /= import from as ..`,
 		[]struct {
 			expectedType   token.Type
 			expectedLexeme string
@@ -48,6 +48,7 @@ func TestScanTokens(t *testing.T) {
 			{token.NUMBER, "6.67428e-11"},
 			{token.IDENTIFIER, "foo"},
 			{token.IDENTIFIER, "foobar"},
+			{token.IDENTIFIER, "hello1"},
 			{token.TRUE, "true"},
 			{token.FALSE, "false"},
 			{token.CLASS, "class"},