From ec6ba3622014e0f622f92a31326f5f82bdc703ac Mon Sep 17 00:00:00 2001
From: Yura Dupyn <2153100+omedusyo@users.noreply.github.com>
Date: Sat, 25 Apr 2026 11:17:47 +0200
Subject: [PATCH] Renaming

---
 src/index.ts | 22 ++++++++++++++--------
 1 file changed, 14 insertions(+), 8 deletions(-)

diff --git a/src/index.ts b/src/index.ts
index 4fe0547..1052ac6 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -21,11 +21,11 @@ export const DIGIT_9: CodePoint = char('9');
 export const DOT: CodePoint = char('.');
 
 // Hex Boundaries
-export const LOWERCASE_a: CodePoint = char('a');
+export const LOWERCASE_A: CodePoint = char('a');
 export const UPPERCASE_A: CodePoint = char('A');
-export const LOWERCASE_f: CodePoint = char('f');
+export const LOWERCASE_F: CodePoint = char('f');
 export const UPPERCASE_F: CodePoint = char('F');
-export const LOWERCASE_z: CodePoint = char('z');
+export const LOWERCASE_Z: CodePoint = char('z');
 export const UPPERCASE_Z: CodePoint = char('Z');
 
 // === Predicates ===
@@ -39,7 +39,7 @@ export function isDigit(x: CodePoint): boolean {
 }
 
 export function isAsciiAlpha(x: CodePoint): boolean {
-  return isBetween(LOWERCASE_a, x, LOWERCASE_z)
+  return isBetween(LOWERCASE_A, x, LOWERCASE_Z)
     || isBetween(UPPERCASE_A, x, UPPERCASE_Z);
 }
 
@@ -69,6 +69,12 @@ export type CodePointSpan = {
 }
 
 // === Source Text ===
+// TODO:
+// @deprecated and say to use `SourceText.makeFromString` instead. 
+export function sourceText(s: string): SourceText {
+  return SourceText.makeFromString(s);
+}
+
 export class SourceText {
   readonly source: string;
   // TODO: Later you can try to change this to two `Uint32Array`s - one for codepoints (each 20 bit but whatever), the other for pointers to original string.
@@ -77,6 +83,10 @@ export class SourceText {
   // Stores the CodePointIndex where each line begins
   readonly lineStarts: CodePointIndex[];
 
+  static makeFromString(s: string): SourceText {
+    return new SourceText(s);
+  }
+
   constructor(rawSource: string) {
     // TODO: This shouldn't really be a concern of the library.
     // const source = rawSource.normalize('NFC');
@@ -265,10 +275,6 @@ export class SourceText {
   }
 }
 
-export function sourceText(s: string): SourceText {
-  return new SourceText(s);
-}
-
 // Creates a Span from two SourceLocations.
 export function span(start: SourceLocation, end: SourceLocation): Span {
   return { start, end };