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.
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== 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.
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== index(string sub)

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

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

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

• Name: contains (string sub) : bool
• Description: Return true if string contains $sub.
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== replace(string find, string replace)

• Name: replace(string find, string replace) : string
• Description: Replace all instances of $find with $replace. Case sensitive.
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== split (string sub)

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

• Name: lower : string
• Description: Returns string in lower case.
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== upper

• Name: upper : string
• Description: Returns string in upper case.
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== upperfirst

• Name: upperfirst : string
• Description: Return string with the first character capitalized.
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== length()

• Name: length() : int
• Description: Return the number of characters in the string.
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== repeat(int n)

• Name: repeat(int n) : string
• Description: Returns the string repeated n times.
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== 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.
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== css_string()

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

• Name: Color(string s) : Color
• Description: Constructor for color class. Lets you make a Color object from a string of form #rrggbb.
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== set_hsl (int h, int s, int v)

• Name: set_hsl (int h, int s, int v)
• Description: Set the HSL value for a color class.
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== red(int r)

• Name: red(int r)
• 'Description: Set the red value. (0-255)
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== green(int g)

• Name: green(int g)
• Description: Set the green value. (0-255)
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== blue(int b)

• Name: blue(int b)
• Description: Set the blue value. (0-255)
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== red()

• Name: red() : int
• Description: Get the red value.
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== green()

• Name: green() : int
• Description: Get the green value.
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== blue()

• Name: blue() : int
• Description: Get the blue value.
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== hue(int h)

• Name: hue(int h)
• Description: Set the hue value. (0-255)
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== saturation(int s)

• Name: saturation(int s)
• Description: Set the saturation value. (0-255)
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== lightness(int v)

• Name: lightness(int v)
• Description: Set the lightness value. (0-255)
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== hue()

• Name: hue() : int
• Description: Get the hue value. (0-255)
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== saturation()

• Name: saturation() : int
• Description: Get the saturation value. (0-255)
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== lightness()

• Name: lightness() : int
• Description: Get the lightness value. (0-255)
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== clone()

• Name: clone() : Color
• Description: Returns identical color.
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== lighter()

• Name: lighter() : Color
• Description: Returns a new color with lightness increased by 30.
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== lighter(int amt)

• Name: lighter(int amt) : Color
• Description: Returns a new color with lightness increased by amount given.
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== darker()

• Name: darker() : Color
• Description: Returns a new color with lightness decreased by 30.
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== darker(int amt)

• Name: darker(int amt) : Color
• Description: Returns a new color with lightness decreased by amount given.
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== inverse()

• Name: inverse() : Color
• Description: Returns inverse of color.
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== average(Color other)

• Name: average(Color other) : Color
• Description: Returns color averaged with $other color.
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== blend(Color other, int value)

• Name: blend(Color other, int value) : Color
• Description: Returns color blended with $other color by percentage value (int between 0 and 100).
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