mini spec: Identifiers

README.md

@@ -47,8 +47,8 @@ For more details, see [Quick Start](doc/docs.md).
 ## Key Features of Go+
 
 * Approaching natural language expression and intuitive (see [How Go+ simplifies Go's expressions](#how-go-simplifies-gos-expressions)).
-* Smallest but Turing-complete syntax set in best practices (see [Go+ Mini Specification](doc/spec-mini.md)).
-* Fully compatible with [Go](https://github.com/golang/go) and can mix Go/Go+ code in the same package (see [Go+ Full Specification](doc/spec.md) and [Go/Go+ Hybrid Programming](doc/docs.md#gogo-hybrid-programming)).
+* Smallest but Turing-complete syntax set in best practices (see [The Go+ Mini Specification](doc/spec-mini.md)).
+* Fully compatible with [Go](https://github.com/golang/go) and can mix Go/Go+ code in the same package (see [The Go+ Full Specification](doc/spec.md) and [Go/Go+ Hybrid Programming](doc/docs.md#gogo-hybrid-programming)).
 * Integrating with the C ecosystem including Python and providing limitless possibilities based on [LLGo](https://github.com/goplus/llgo) (see [Support for C/C++ and Python](#support-for-cc-and-python)).
 * Does not support DSL (Domain-Specific Languages), but supports SDF (Specific Domain Friendliness) (see [Go+ Classfiles](#go-classfiles)).
 
@@ -81,7 +81,7 @@ Code style is just the first step. We have made many efforts to make the code mo
 | OnStart(func() {<br>&nbsp;&nbsp;&nbsp;&nbsp;...<br>}) | onStart => {<br>&nbsp;&nbsp;&nbsp;&nbsp;...<br>} | Lambda expressions |
 | type Rect struct {<br>&nbsp;&nbsp;&nbsp;&nbsp;Width&nbsp; float64<br>&nbsp;&nbsp;&nbsp;&nbsp;Height float64<br>}<br><br>func (this *Rect) Area() float64 { <br>&nbsp;&nbsp;&nbsp;&nbsp;return this.Width * this.Height<br>} | var (<br>&nbsp;&nbsp;&nbsp;&nbsp;Width&nbsp; float64<br>&nbsp;&nbsp;&nbsp;&nbsp;Height float64<br>)<br><br>func Area() float64 { <br>&nbsp;&nbsp;&nbsp;&nbsp;return Width * Height<br>} | [Go+ Classfiles](doc/classfile.md): We can express OOP with global variables and functions. |
 
-For more details, see [Go+ Mini Specification](doc/spec-mini.md).
+For more details, see [The Go+ Mini Specification](doc/spec-mini.md).
 
 
 ## Support for C/C++ and Python

doc/spec-mini.md

@@ -1,6 +1,8 @@
-Go+ Specification for STEM Education
+The Go+ Mini Specification
 =====
 
+Go+ has a recommended best practice syntax set, which we call the Go+ Mini Specification.It is simple but Turing-complete and can elegantly implement any business requirements.
+
 ## Notation
 
 The syntax is specified using a [variant](https://en.wikipedia.org/wiki/Wirth_syntax_notation) of Extended Backus-Naur Form (EBNF):
@@ -101,6 +103,25 @@ To reflect idiomatic use, code examples in this document elide semicolons using
 
 ### Identifiers
 
+Identifiers name program entities such as variables and types. An identifier is a sequence of one or more letters and digits. The first character in an identifier must be a letter.
+
+```go
+identifier = letter { letter | unicode_digit } .
+```
+
+For example:
+
+```go
+a
+_x9
+ThisVariableIsExported
+αβ
+```
+
+Some identifiers are [predeclared](#predeclared-identifiers).
+
+### Keywords
+
 TODO
 
 ### Integer literals

doc/spec.md

@@ -1,6 +1,8 @@
-Go+ Full Specification
+The Go+ Full Specification
 =====
 
+TODO
+
 ## Comments
 
 See [Comments](spec-mini.md#comments).