S2 functions

S2 functions

Template to use:

== class name =

=== function name=

* '''Name:''' the in-code name for the function
* '''Description:''' the in-code description
* '''Other info:''' further explanation, if needed

Note: Classes only need to be listed once; all of the functions in that class can be added under the one header.

== zeropad(int digits)

• Name: zeropad(int digits) : string
• Description: Return the integer as a string formatted at least $digits characters long, left-padded with zeroes.
• Other info:

== compare(int n)

• Name: compare(int n) : int
• Description: Compare one integer with another. Returns a negative number if n is less than the subject, positive if greater or zero if the two are numerically equal.
• Other info:

== index(string sub)

• Name: index(string sub) : int
• Description: Returns the index of the first instance of $sub in string.
• Other info:

== index(string sub, int position)

• Name: index(string sub, int position) : int
• Description: Returns the index of the first instance of $sub in string, starting from $position.
• Other info:

== substr(int start, int length)

• Name: substr(int start, int length) : string
• Description: Returns up to $length characters from string, skipping $start characters from the beginning.
• Other info:

== ends_with (string sub)

• Name: ends_with (string sub) : bool
• Description: Returns true if string ends in $sub.
• Other info:

== starts_with (string sub)

• Name: starts_with (string sub) : bool
• Description: Returns true if string begins with $sub.
• Other info:

== contains (string sub)

• Name: contains (string sub) : bool
• Description: Return true if string contains $sub.
• Other info:

== replace(string find, string replace)

• Name: replace(string find, string replace) : string
• Description: Replace all instances of $find with $replace. Case sensitive.
• Other info:

== split (string sub)

• Name: split (string sub) : string[]
• Description: Return an array of strings split by $sub.
• Other info:

== lower

• Name: lower : string
• Description: Returns string in lower case.
• Other info:

== upper

• Name: upper : string
• Description: Returns string in upper case.
• Other info:

== upperfirst

• Name: upperfirst : string
• Description: Return string with the first character capitalized.
• Other info:

== length()

• Name: length() : int
• Description: Return the number of characters in the string.
• Other info:

== repeat(int n)

• Name: repeat(int n) : string
• Description: Returns the string repeated n times.
• Other info:

== compare(string s)

• Name: compare(string s) : int
• Description: Compare one string with another. Returns a negative number if n is alphabetically before the subject, positive if greater or zero if the two are equal. Note that this function currently does a simple ASCII compare, not a proper unicode-aware sort.
• Other info:

== css_string()

• Name: css_string() : string
• Description: Returns the string escaped and quoted as a CSS string literal, safe for insertion into a stylesheet.
• Other info:

== css_keyword()

• Name: css_keyword() : string
• Description: If the string is syntactically valid as a CSS keyword (only letters and spaces) returns it, else returns an empty string.
• Other info:

== css_keyword_list()

• Name: css_keyword_list() : string
• Description: Analyses the string as a space-separated list of CSS keywords and returns a string containing the items that are syntactically acceptable.
• Other info:

== css_keyword(string[] allowed)

• Name: css_keyword(string[] allowed) : string
• Description: Same as [method[string.css_keyword()]] except also imposes a whitelist of valid keywords given in $allowed.
• Other info:

== css_keyword_list(string[] allowed)

• Name: css_keyword_list(string[] allowed) : string
• Description: Same as [method[string.css_keyword_list()]] except also imposes a whitelist of valid keywords given in $allowed.
• Other info:

== css_length_value()

• Name: css_length_value() : string
• Description: If the string contains a valid CSS length value, returns a canonical version. Else returns an empty string.
• Other info:

== css_url_value

• Name: css_url_value : string
• Description: If the string contains a valid HTTP or HTTPS URL it is returned. Otherwise, an empty string is returned.
• Other info: