RegexpFind
The RegexpFind function performs regular expression pattern matching on the input string, and outputs the index at which the pattern is found.
The first character in the input string has an index value of 1. If the regular expression pattern is not found, 0 is output.
Input/Output
Number of Connections: Min: 1/Max:3| Input | Data Type | Description |
|---|---|---|
| Input1 | String | Data |
| Input2 | Integer | Sets the Offset property. (optional) |
| Input3 | String | Sets the RegExp property. (optional) |
| Output | Data Type | Description |
|---|---|---|
| Output1 | Integer | The index at which the regular expression pattern is found. |
Property
| Name | Property Type | Description | ||||||
|---|---|---|---|---|---|---|---|---|
| RegExp | string | The regular expression. | ||||||
| CaseInsensitive | choice |
Defines whether the query distinguishes between upper and lower case characters.
|
||||||
| Offset | int | The offset from the beginning of the input stream's string from which the regular expression pattern matching is to start. |
Topic
- This component supports generic regular expressions and Perl5 regular expressions. For information regarding the JAVA package this component uses to implement regular expression queries refer to http://jakarta.apache.org/oro/api/org/apache/oro/text/regex/package-summary.html.
Regular Expression Dialog
When double-click the regular expression functions, the Regular Expression Dialog is displayed. You can configure the properties and test the regular expressions.
| Regexp | Input regular expression property. When the item is selected by listing the lower right of the screen, the corresponding regular expression is set. |
|---|---|
| Input string | Input the string to be used by test. |
| Result | The result of test is displayed. |
| Other property | Properties of editing function is displayed except for regular expression. |
| Selection list | If selects the category, regular expressions are displayed below. The corresponding regular expression is reflected in the input column when the item is selected from the list, and the explanation is displayed under the screen. |
| Test button | Test the current configurations with Input string. |
| Edit sample button | Edits the regular expression list of Selection List. |
Regular expression list is simple CSV file and it is freely customizable.
Specification of regular expression sample data
- The file path is DESIGNER_HOME/resources/Regexp/Regexp.txt
- Comment the line started with "#"
- Column 1 - Categor
- Column 2 - Label displayed in the list
- Column 3 - Regular expression
- Column 4 - Description(Line feed is "\n")