diff --git a/src/components/__tests__/quantifiers.test.tsx b/src/components/__tests__/quantifiers.test.tsx
index 22934ff..852cccb 100644
--- a/src/components/__tests__/quantifiers.test.tsx
+++ b/src/components/__tests__/quantifiers.test.tsx
@@ -1,17 +1,12 @@
 import { buildRegex } from '../../builders';
 import { digit } from '../character-class';
-import { one, oneOrMore, optionally, zeroOrMore } from '../quantifiers';
+import { oneOrMore, optionally, zeroOrMore } from '../quantifiers';
 
 test('`oneOrMore` quantifier', () => {
   expect(oneOrMore('a')).toHavePattern('a+');
   expect(oneOrMore('ab')).toHavePattern('(?:ab)+');
 });
 
-test('`one` quantifier', () => {
-  expect(one('a')).toHavePattern('a');
-  expect(one('ab')).toHavePattern('ab');
-});
-
 test('`optionally` quantifier', () => {
   expect(optionally('a')).toHavePattern('a?');
   expect(optionally('ab')).toHavePattern('(?:ab)?');
@@ -28,12 +23,6 @@ test('`oneOrMore` does not generate capture when grouping', () => {
   expect(groups).toEqual(['aa']);
 });
 
-test('`one` does not generate capture when grouping', () => {
-  const regex = buildRegex(one('aa'));
-  const groups = [...'aa'.match(regex)!];
-  expect(groups).toEqual(['aa']);
-});
-
 test('`optionally` does not generate capture when grouping', () => {
   const regex = buildRegex(optionally('aa'));
   const groups = [...'aa'.match(regex)!];
@@ -47,7 +36,6 @@ test('`zeroOrMore` does not generate capture when grouping', () => {
 });
 
 test('base quantifiers optimize grouping for atoms', () => {
-  expect(one(digit)).toHavePattern('\\d');
   expect(oneOrMore(digit)).toHavePattern('\\d+');
   expect(optionally(digit)).toHavePattern('\\d?');
   expect(zeroOrMore(digit)).toHavePattern('\\d*');
diff --git a/src/components/quantifiers.ts b/src/components/quantifiers.ts
index 93711b6..d379703 100644
--- a/src/components/quantifiers.ts
+++ b/src/components/quantifiers.ts
@@ -1,13 +1,8 @@
-import { encodeAtom, encodeSequence } from '../encoder/encoder';
+import { encodeAtom } from '../encoder/encoder';
 import type { EncodeOutput } from '../encoder/types';
 import { asNodeArray } from '../utils/nodes';
 import type { RegexElement, RegexNode } from '../types';
 
-export interface One extends RegexElement {
-  type: 'one';
-  children: RegexNode[];
-}
-
 export interface OneOrMore extends RegexElement {
   type: 'oneOrMore';
   children: RegexNode[];
@@ -23,14 +18,6 @@ export interface ZeroOrMore extends RegexElement {
   children: RegexNode[];
 }
 
-export function one(nodes: RegexNode | RegexNode[]): One {
-  return {
-    type: 'one',
-    children: asNodeArray(nodes),
-    encode: encodeOne,
-  };
-}
-
 export function oneOrMore(nodes: RegexNode | RegexNode[]): OneOrMore {
   return {
     type: 'oneOrMore',
@@ -55,10 +42,6 @@ export function zeroOrMore(nodes: RegexNode | RegexNode[]): ZeroOrMore {
   };
 }
 
-function encodeOne(this: One) {
-  return encodeSequence(this.children);
-}
-
 function encodeOneOrMore(this: OneOrMore): EncodeOutput {
   return {
     precedence: 'sequence',
diff --git a/src/encoder/__tests__/encoder.test.tsx b/src/encoder/__tests__/encoder.test.tsx
index fdd40f0..dbb103e 100644
--- a/src/encoder/__tests__/encoder.test.tsx
+++ b/src/encoder/__tests__/encoder.test.tsx
@@ -1,6 +1,5 @@
 import { buildPattern, buildRegex } from '../../builders';
 import {
-  one,
   oneOrMore,
   optionally,
   zeroOrMore,
@@ -26,7 +25,7 @@ test('basic quantifies', () => {
 
   expect([optionally('a'), 'b']).toHavePattern('a?b');
 
-  expect([optionally('a'), 'b', one('d')]).toHavePattern('a?bd');
+  expect([optionally('a'), 'b', oneOrMore('d')]).toHavePattern('a?bd+');
 });
 
 test('regex constructor', () => {
diff --git a/src/index.ts b/src/index.ts
index df4ad3b..1e3d723 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -2,19 +2,18 @@ export type * from './types';
 
 export { buildPattern, buildRegex } from './builders';
 
+export { startOfString, endOfString } from './components/anchors';
 export { capture } from './components/capture';
 export {
   any,
-  anyOf,
   digit,
   whitespace,
   word,
+  anyOf,
+  characterRange,
+  characterClass,
+  inverted,
 } from './components/character-class';
 export { choiceOf } from './components/choice-of';
-export {
-  one,
-  oneOrMore,
-  optionally,
-  zeroOrMore,
-} from './components/quantifiers';
+export { oneOrMore, optionally, zeroOrMore } from './components/quantifiers';
 export { repeat } from './components/repeat';