[String_ReplaceRegExp] takes three parameters: a string value, a -Find keyword/value parameter, and a -Replace keyword/value parameter. Returns a string with each instance of the -Find regular expression replaced by the value of the -Replace regular expression within the string parameter.
The following matching symbols are available in regular expressions. Each of these symbols matches a single character. Multiple characters are matched by combining these symbols with the combination symbols in the next table.
Note - Regular expressions in Lasso require double backslashes as shown in the listing below.
a-z A-Z 0-9 - Alphanumeric characters match the specified character.
. - Period matches any single character.
^ - Circumflex matches the beginning of a line.
$ - Dollar sign matches the end of a line.
\\... - A backslash escapes the next character. \\\\ represents a backslash.
[...] - Square brackets create a character class matching any character included inside.
[^...] - With a carat, any character other than those included inside is matched.
[a-z] - A range of characters can be specified.
\t - A tab character.
\r - A return character.
\n - A new-line character.
\" - A double quote.
\' - A single quote.
\\w - Matches any alphanumeric character or an underscore.
\\W - Matches any non-alphanumeric character.
\\s - Matches a whitespace character (space, tab, return, etc.).
\\S - Matches a non-whitespace character.
\\d - Matches a numeric digit.
\\D - Matches any non-numeric character.
The following combination symbols are used to combine matching symbols into complex expressions. For example a+ would match one or more a characters.
| - Alternation. Matches either the character before or the character after the symbol.
( ) - Grouping. Defines a named group for output. Nine pairs of parentheses can be defined.
* - Asterisk matches 0 or more repetitions of the preceding character.
+ - Plus sign matches 1 or more repetitions of the preceding character.
? - Question mark matches 0 or 1 repetitions of the preceding character.
{n} - Matches n repetitions of the preceding character.
{n,} - Matches at least n repetitions of the preceding character.
{n,m} - Matches at least n, but no more than m repetitions of the preceding character.
In the replacement pattern the following additional symbols can be used.
\\1 ... \\9 - An escaped number substitutes in the specified group (defined by parentheses) from the source.
[String_ReplaceRegExp: String Value,
-Find=Regular Expression,
-Replace=Regular Expression]
[String_ReplaceRegExp: String Value,
-Find=Regular Expression,
-Replace=Regular Expression,
-IgnoreCase]
[String_ReplaceRegExp: String Value,
-Find=Regular Expression,
-Replace=Regular Expression,
-ReplaceOnlyOne]
Use the [String_ReplaceRegExp] tag. The following example replaces any email address in the source with an HTML anchor tag that allows visitors to send email to the address.
[String_ReplaceRegExp: 'Send email to lassodocumentation@omnipilot.com',
-Find='(\\w+@\\w+\\.\\w+)',
-Replace='<a href=\"mailto:\\1\"> \\1 </a>', -EncodeNone]
Send email to <a href="lassodocumentation@omnipilot.com"> lassodocumentation@omnipilot.com </a>
Tag Link | [String_ReplaceRegExp] | Category | String |
---|---|---|---|
Type | Substitution | Data Source | Any |
Support | Preferred | Version | 5.0 |
Output Type | String | Security | None |
Implementation | LCAPI | Sets | Lasso 8.5, Lasso 8.0, Lasso 7.0, Lasso 6.0, Lasso 5.0 |
Please note that periodically LassoSoft will go through the notes and may incorporate information from them into the documentation. Any submission here gives LassoSoft a non-exclusive license and will be made available in various formats to the Lasso community.
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