| <html><head><META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>6.2.1. Identifier</title><link href="style.css" rel="stylesheet" type="text/css"><meta content="DocBook XSL Stylesheets V1.72.0" name="generator"><link rel="start" href="index.html" title="The VIATRA2 Model Transformation Framework"><link rel="up" href="sec_NameTokens.html" title="6.2. Tokens for names and strings"><link rel="prev" href="sec_NameTokens.html" title="6.2. Tokens for names and strings"><link rel="next" href="def_NameLiteral.html" title="6.2.2. Name Literal"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table summary="Navigation header" width="100%"><tr><th align="center" colspan="3">6.2.1. Identifier</th></tr><tr><td align="left" width="20%"><a accesskey="p" href="sec_NameTokens.html">Prev</a> </td><th align="center" width="60%">6.2. Tokens for names and strings</th><td align="right" width="20%"> <a accesskey="n" href="def_NameLiteral.html">Next</a></td></tr></table><hr></div><div class="sect3" lang="en"><div class="titlepage"><div><div><h4 class="title"><a name="def_Identifier"></a>6.2.1. Identifier</h4></div></div></div><div class="tip" style="margin-left: 0.5in; margin-right: 0.5in;"><table border="0" summary="Tip: Description"><tr><td valign="top" align="center" rowspan="2" width="25"><img alt="[Tip]" src="images/tip.png"></td><th align="left"><a name="def_Identifier_Description"></a>Description</th></tr><tr><td valign="top" align="left"><p> | |
| An <span class="strong"><strong>Identifier</strong></span> | |
| <a name="N131D4" class="indexterm"></a> | |
| is a alphanumeric token, which starts with a lower case letter. | |
| </p></td></tr></table></div><div class="important" style="margin-left: 0.5in; margin-right: 0.5in;"><table border="0" summary="Important: Syntax"><tr><td valign="top" align="center" rowspan="2" width="25"><img alt="[Important]" src="images/important.png"></td><th align="left"><a name="def_Identifier_Syntax"></a>Syntax</th></tr><tr><td valign="top" align="left"><pre class="programlisting"> | |
| Identifier -> LowerCaseLetter | |
| | LowerCaseLetter Alphanum | |
| Alphanum -> Letter | Digit | |
| | Alphanum Letter | |
| | Alphanum Digit | |
| Letter -> LowerCaseLetter | |
| | UpperCaseLetter | |
| | _ | |
| | '$' | |
| | AfterASCII | |
| LowerCaseLetter -> <span class="token">a..z</span> | |
| UpperCaseLetter -> <span class="token">A..Z</span> | |
| Digit -> 0..9 | |
| AfterASCII -> <span class="token">\u0080..\ufffe</span> | |
| </pre><p> | |
| An <span class="strong"><strong>identifier</strong></span> starts with a lower case letter | |
| which can be followed by an arbitrary number of alphanumeric characters. | |
| An identifier cannot contain other special characters; in such a case, | |
| a <a href="def_NameLiteral.html" title="6.2.2. Name Literal">name literal</a> should be used | |
| (by inserting the name between apostrophes). | |
| </p></td></tr></table></div><div class="highlights"><a name="def_Identifier_DefinedIn"></a><p><b>Defined In: </b> | |
| <a href="def_Token.html" title="6.1.1. Tokens">Token</a> | |
| </p></div></div><div class="navfooter"><hr><table summary="Navigation footer" width="100%"><tr><td align="left" width="40%"><a accesskey="p" href="sec_NameTokens.html">Prev</a> </td><td align="center" width="20%"><a accesskey="u" href="sec_NameTokens.html">Up</a></td><td align="right" width="40%"> <a accesskey="n" href="def_NameLiteral.html">Next</a></td></tr><tr><td valign="top" align="left" width="40%">6.2. Tokens for names and strings </td><td align="center" width="20%"><a accesskey="h" href="index.html">Home</a></td><td valign="top" align="right" width="40%"> 6.2.2. Name Literal</td></tr></table></div></body></html> |