Close #17 PR: Add support for ^1.2.3 and ~1.2.3 versions. Fixes #16

index.js

@@ -2,6 +2,7 @@
 var got = require('got');
 var registryUrl = require('registry-url');
 var rc = require('rc');
+var semver = require('semver');
 
 module.exports = function (name, version) {
 	var scope = name.split('/')[0];
@@ -29,6 +30,15 @@ module.exports = function (name, version) {
 			if (version === 'latest') {
 				data = data.versions[data['dist-tags'].latest];
 			} else if (version) {
+				if (!data.versions[version]) {
+					var versions = Object.keys(data.versions);
+					version = semver.maxSatisfying(versions, version);
+
+					if (!version) {
+						throw new Error('Version doesn\'t exist');
+					}
+				}
+
 				data = data.versions[version];
 
 				if (!data) {

package.json

@@ -32,7 +32,8 @@
   "dependencies": {
     "got": "^5.0.0",
     "rc": "^1.1.2",
-    "registry-url": "^3.0.3"
+    "registry-url": "^3.0.3",
+    "semver": "^5.1.0"
   },
   "devDependencies": {
     "ava": "*",

readme.md

@@ -35,6 +35,12 @@ packageJson('@company/package', 'latest').then(json => {
 You can optionally specify a version (e.g. `1.0.0`) or `latest`.  
 If you don't specify a version you'll get the [main entry](http://registry.npmjs.org/pageres/) containing all versions.
 
+The version can also be in any format supported by the [semver](https://www.npmjs.com/package/semver) module. For example:
+
+- `1` - get the latest `1.x.x`
+- `1.2` - get the latest `1.2.x`
+- `^1.2.3` - get the latest `1.x.x` but at least `1.2.3`
+- `~1.2.3` - get the latest `1.2.x` but at least `1.2.3`
 
 ## Related
 

test.js

@@ -17,6 +17,11 @@ test('specific version', async t => {
 	t.is(json.version, '0.1.0');
 });
 
+test('incomplete version x', async t => {
+	const json = await fn('pageres', '0');
+	t.is(json.version.substr(0,2), '0.');
+});
+
 test('scoped - full', async t => {
 	const json = await fn('@sindresorhus/df');
 	t.is(json.name, '@sindresorhus/df');