updated

Author: KumudD

articles/cdn/cdn-verizon-premium-rules-engine-reference.md

@@ -22,47 +22,6 @@ The rules engine is designed to be the final authority on how specific types of
 - Secure or deny requests for sensitive content.
 - Redirect requests.
 - Store custom log data.
-
-## Syntax
-
-The manner in which special characters are treated varies according to how a match condition or feature handles text values. A match condition or feature may interpret text in one of the following ways:
-
-- [**Literal values**](#literal-values)
-- [**Wildcard values**](#wildcard-values)
-- [**Regular expressions**](#regular-expressions)
-
-### Literal values
-
-Text that is interpreted as a literal value treats all special characters, with the exception of the % symbol, as a part of the value that must be matched. In other words, a literal match condition set to `\'*'\` is only satisfied when that exact value (that is, `\'*'\`) is found.
-
-A percentage symbol is used to indicate URL encoding (for example, `%20`).
-
-### Wildcard values
-
-Text that is interpreted as a wildcard value assigns additional meaning to special characters. The following table describes how the following set of characters is interpreted:
-
-Character | Description
-----------|------------
-\ | A backslash is used to escape any of the characters specified in this table. A backslash must be specified directly before the special character that should be escaped.<br/>For example, the following syntax escapes an asterisk: `\*`
-% | A percentage symbol is used to indicate URL encoding (for example, `%20`).
-\* | An asterisk is a wildcard that represents one or more characters.
-Space | A space character indicates that a match condition may be satisfied by either of the specified values or patterns.
-'value' | A single quote does not have special meaning. However, a set of single quotes is used to indicate that a value should be treated as a literal value. It can be used in the following ways:<br><br/>- It allows a match condition to be satisfied whenever the specified value matches any portion of the comparison value.  For example, `'ma'` would match any of the following strings: <br/><br/>/business/**ma**rathon/asset.htm<br/>**ma**p.gif<br/>/business/template.**ma**p<br /><br />- It allows a special character to be specified as a literal character. For example, you may specify a literal space character by enclosing a space character within a set of single quotes (that is, `' '` or `'sample value'`).<br/>- It allows a blank value to be specified. Specify a blank value by specifying a set of single quotes (that is, '').<br /><br/>**Important:**<br/>- If the specified value does not contain a wildcard, then it is automatically considered a literal value, which means that it is not necessary to specify a set of single quotes.<br/>- If a backslash does not escape another character in this table, it is ignored when it is specified within a set of single quotes.<br/>- Another way to specify a special character as a literal character is to escape it using a backslash (that is, `\`).
-
-### Regular expressions
-
-Regular expressions define a pattern that is searched for within a text value. Regular expression notation defines specific meanings to a variety of symbols. The following table indicates how special characters are treated by match conditions and features that support regular expressions.
-
-Special Character | Description
-------------------|------------
-\ | A backslash escapes the character the follows it, which causes that character to be treated as a literal value instead of taking on its regular expression meaning. For example, the following syntax escapes an asterisk: `\*`
-% | The meaning of a percentage symbol depends on its usage.<br/><br/> `%{HTTPVariable}`: This syntax identifies an HTTP variable.<br/>`%{HTTPVariable%Pattern}`: This syntax uses a percentage symbol to identify an HTTP variable and as a delimiter.<br />`\%`: Escaping a percentage symbol allows it to be used as a literal value or to indicate URL encoding (for example, `\%20`).
-\* | An asterisk allows the preceding character to be matched zero or more times.
-Space | A space character is typically treated as a literal character.
-'value' | Single quotes are treated as literal characters. A set of single quotes does not have special meaning.
-
-Match conditions and features that support regular expressions accept patterns defined by Perl Compatible Regular Expressions (PCRE).
-
 ## Key concepts
 Key concepts for setting up Rules Engine are described below.
 ### Draft
@@ -112,6 +71,47 @@ The workflow through which a policy may be applied to either the Production or S
 |Deploy Request Review   |    <br>A deploy request undergoes automated validation and error detection.</br><br>Although the majority of deploy requests are automatically approved, manual review is required for more complex policies.</br>   |
 |Policy Deployment ([Staging](https://docs.vdms.com/cdn/index.html#HRE/Environment.htm#Staging))   |  <br> Upon approval of a deploy request to the Staging environment, a policy will be applied to the Staging environment. This environment allows a policy to be tested against mock site traffic.</br><br>Once the policy is ready to be applied to live site traffic, a new deploy request for the Production environment should be submitted.</br>      |
 |Policy Deployment ([Production](https://docs.vdms.com/cdn/index.html#HRE/Environment.htm#Producti))   |  Upon approval of a deploy request to the Production environment, a policy will be applied to the Production environment. This environment allows a policy to act as the final authority for determining how the CDN should handle live traffic.     |
+## Syntax
+
+The manner in which special characters are treated varies according to how a match condition or feature handles text values. A match condition or feature may interpret text in one of the following ways:
+
+- [**Literal values**](#literal-values)
+- [**Wildcard values**](#wildcard-values)
+- [**Regular expressions**](#regular-expressions)
+
+### Literal values
+
+Text that is interpreted as a literal value treats all special characters, with the exception of the % symbol, as a part of the value that must be matched. In other words, a literal match condition set to `\'*'\` is only satisfied when that exact value (that is, `\'*'\`) is found.
+
+A percentage symbol is used to indicate URL encoding (for example, `%20`).
+
+### Wildcard values
+
+Text that is interpreted as a wildcard value assigns additional meaning to special characters. The following table describes how the following set of characters is interpreted:
+
+Character | Description
+----------|------------
+\ | A backslash is used to escape any of the characters specified in this table. A backslash must be specified directly before the special character that should be escaped.<br/>For example, the following syntax escapes an asterisk: `\*`
+% | A percentage symbol is used to indicate URL encoding (for example, `%20`).
+\* | An asterisk is a wildcard that represents one or more characters.
+Space | A space character indicates that a match condition may be satisfied by either of the specified values or patterns.
+'value' | A single quote does not have special meaning. However, a set of single quotes is used to indicate that a value should be treated as a literal value. It can be used in the following ways:<br><br/>- It allows a match condition to be satisfied whenever the specified value matches any portion of the comparison value.  For example, `'ma'` would match any of the following strings: <br/><br/>/business/**ma**rathon/asset.htm<br/>**ma**p.gif<br/>/business/template.**ma**p<br /><br />- It allows a special character to be specified as a literal character. For example, you may specify a literal space character by enclosing a space character within a set of single quotes (that is, `' '` or `'sample value'`).<br/>- It allows a blank value to be specified. Specify a blank value by specifying a set of single quotes (that is, '').<br /><br/>**Important:**<br/>- If the specified value does not contain a wildcard, then it is automatically considered a literal value, which means that it is not necessary to specify a set of single quotes.<br/>- If a backslash does not escape another character in this table, it is ignored when it is specified within a set of single quotes.<br/>- Another way to specify a special character as a literal character is to escape it using a backslash (that is, `\`).
+
+### Regular expressions
+
+Regular expressions define a pattern that is searched for within a text value. Regular expression notation defines specific meanings to a variety of symbols. The following table indicates how special characters are treated by match conditions and features that support regular expressions.
+
+Special Character | Description
+------------------|------------
+\ | A backslash escapes the character the follows it, which causes that character to be treated as a literal value instead of taking on its regular expression meaning. For example, the following syntax escapes an asterisk: `\*`
+% | The meaning of a percentage symbol depends on its usage.<br/><br/> `%{HTTPVariable}`: This syntax identifies an HTTP variable.<br/>`%{HTTPVariable%Pattern}`: This syntax uses a percentage symbol to identify an HTTP variable and as a delimiter.<br />`\%`: Escaping a percentage symbol allows it to be used as a literal value or to indicate URL encoding (for example, `\%20`).
+\* | An asterisk allows the preceding character to be matched zero or more times.
+Space | A space character is typically treated as a literal character.
+'value' | Single quotes are treated as literal characters. A set of single quotes does not have special meaning.
+
+Match conditions and features that support regular expressions accept patterns defined by Perl Compatible Regular Expressions (PCRE).
+
+
 
 ## Next steps