Merge 283ff2a into 6069fe7

.gitignore

@@ -3,3 +3,4 @@
 coverage/
 .nyc_output/
 .idea
+.vscode/launch.json

.vscode/launch.json

@@ -0,0 +1,22 @@
+{
+  // Use IntelliSense to learn about possible attributes.
+  // Hover to view descriptions of existing attributes.
+  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "type": "node",
+      "request": "launch",
+      "name": "Launch Program",
+      "program": "${workspaceFolder}/bin/semver",
+      "args": [
+        "-i", "prerelease", 
+        "--preid", "dev",
+        "-n", "0",
+        "1.2.0"
+
+      ]
+    }
+  ]
+} 
+

README.md

@@ -51,13 +51,19 @@ Options:
         Identifier to be used to prefix premajor, preminor,
         prepatch or prerelease version increments.
 
+-n <identifier number base>
+        This is the number base to be used for the
+        prerelease identifier.  Zero-based or one-based.
+
 -l --loose
         Interpret versions and ranges loosely
 
 -c --coerce
         Coerce a string into SemVer if possible
         (does not imply --loose)
 
+
+
 Program exits successfully if any valid version satisfies
 all supplied ranges, and prints all satisfying versions.
 
@@ -160,6 +166,25 @@ $ semver 1.2.4-beta.0 -i prerelease
 1.2.4-beta.1
 ```
 
+#### Prerelease Identifier Index
+
+The method `.inc` takes an optional parameter 'identifierIndex' string
+that will let you let your prerelease number as zero-based or one-based.
+If you do not specify this parameter, it will default to zero-based.
+
+```javascript
+semver.inc('1.2.3', 'prerelease', 'beta', '1')
+// '1.2.4-beta.1'
+```
+
+command-line example:
+
+```bash
+$ semver 1.2.3 -i prerelease --preid beta -n 1
+1.2.4-beta.1
+```
+
+
 ### Advanced Range Syntax
 
 Advanced range syntax desugars to primitive comparators in

bin/semver

@@ -14,6 +14,7 @@ var argv = process.argv.slice(2)
   , loose = false
   , coerce = false
   , identifier = undefined
+  , identifierIndex = undefined
   , semver = require("../semver")
   , reverse = false
 
@@ -55,6 +56,8 @@ function main () {
       case "-r": case "--range":
         range.push(argv.shift())
         break
+      case "-n":
+        identifierIndex = argv.shift();
       case "-c": case "--coerce":
         coerce = true
         break
@@ -98,7 +101,7 @@ function success () {
   }).map(function (v) {
     return semver.clean(v, loose)
   }).map(function (v) {
-    return inc ? semver.inc(v, inc, loose, identifier) : v
+    return inc ? semver.inc(v, inc, loose, identifier, identifierIndex) : v
   }).forEach(function (v,i,_) { console.log(v) })
 }