XPath and Regex Examples for E-Document Templates

The examples provided in the table can be used to validate the following sample template:

          <document>
<buyer>Abuyer</buyer>
<amount>100</amount>
<items>
<item><id>1</id><name>Mouse</name></item>
<item><id>2</id><name>Keyboard</name></item>
<item><id>3.0</id><name>Monitor</name></item>
<count>3.0</count>
</items>
</document>

The following table contains sample xpath and regex validation expressions:

Xpath	Regex validation expression	Description	Values for validation	Validation result
"document/buyer"	/^.+$/	The value cannot be blank	Abuyer	Pass
"document/amount"	/^\d+\.\d{0,4}$/	The value is a decimal with up to 4 decimal places	100	Fail
"document/items/item/id"	/^\d+$/	The value is a whole number	Each value will be validated
1	Pass
2	Pass
3.0	Fail
"document/items/count”	/^\d+(\.*\d{0,2}){1}$/	The value is a whole number or a decimal number with up to 2 decimal places	3.0	Pass

Xpath

Regex validation expression

Description

Values for validation

Validation result

"document/buyer"

/^.+$/

The value cannot be blank

Abuyer

Pass

"document/amount"

/^\d+\.\d{0,4}$/

The value is a decimal with up to 4 decimal places

100

Fail

"document/items/item/id"

/^\d+$/

The value is a whole number

Each value will be validated

Pass

3.0

Fail

"document/items/count”

/^\d+(\.*\d{0,2}){1}$/

The value is a whole number or a decimal number with up to 2 decimal places

3.0

Pass

For more information about xpath and regex validations, go to the w3schools website:

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