ComboStrap UI - Pipeline

A pipeline is a element that contains a list of function (called a pipeline) that transforms successively a string.

<pipeline> value | function | function | ... </pipeline>

where:

• value is the string to transform or a template variable
• function is one of:
  • capitalize - make the first letter of each word a capital letter (ie uppercase letter)
  • cut - cut the string in parts and return one
  • head - return the first characters
  • replace - replace a string
  • rconcat - add a string at the right side
  • trim - delete any space before and after

capitalize is a function that will make the first letter of each word an uppercase letter (ie capital letter)

Syntax:

capitalize()

Example:

<pipeline> "hello foo  bar" | capitalize() </pipeline>

Output:

Hello Foo Bar

cut is a function that will split the string in parts and returned the asked part concatenated. If the separator is not found, the original string is returned

Syntax:

cut("separator",selector)

where:

• separator can be a simple character or a regular expression.
• selector is a token selection in the form x[-y] where:
  • x is the first token to select
  • - will select also the next tokens (optional, if not set only one token is returned)
  • y is the last token to select (optional, by default, the last one)

Example:

• Range Token Selection. Select all token from the second

<pipeline> "Hello - Foo - Bar" | cut("-","2-") </pipeline>

Output:

Foo - Bar

• Single Token Selection. Select only the second token

<pipeline> "Hello - Foo - Bar" | cut("-",2) </pipeline>

Output:

Foo

• If the separator is not found, the function has not effect on the given string.

<pipeline> "Hello World" | cut("-",2) </pipeline>

Output:

Hello World

head is a function that will take the first N characters of a string.

Syntax:

head($length, $tail)

where:

• length is the maximal length of the output string
• tail is an optional string that is added if the input string was cut

For instance:

<pipeline> "Long Title that we want to cut" | head(10 , "...") </pipeline>

Output:

Long Title "...

rconcat is a function that will concatenate a string to the right

Syntax:

rconcat($string)

For instance:

<pipeline> "Title" | rconcat("...") </pipeline>

Output:

Title...

replace is a function that will search a string and replace it.

Syntax:

replace($search, $replace)

For instance:

<pipeline> "Prefix - Title" | replace("Prefix - ","") </pipeline>

Output:

Title

trim is a function that strip whitespace from the beginning and end of a string

Syntax:

trim()

For instance:

<pipeline> "Hello World   " | trim() </pipeline>

Output:

Hello World