Module:List
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This module is rated as beta, and is ready for widespread use. It is still new and should be used with some caution to ensure the results are as expected. |
This module uses TemplateStyles: |
This module outputs various kinds of lists. At present, it supports bulleted lists, unbulleted lists, horizontal lists, ordered lists (numbered or alphabetical), and horizontal ordered lists. It allows for easy css styling of the list or of the individual list items.
Usage
- Quick usage
{{#invoke:list|function|first item|second item|third item|...}}
- All parameters
{{#invoke:list|function |first item|second item|third item|... |start = start number for ordered lists |type = type of numbering for ordered lists |list_style_type = type of marker for ordered lists (uses CSS) |class = class |style = style |list_style = style for the list |item_style = style for all list items |item1_style = style for the first list item |item2_style = style for the second list item |... |item1_value = value for the first list item |item2_value = value for the second list item |... |indent = indent for horizontal lists }}
- Arguments passed from parent template
{{#invoke:list|function}}
- Functions
Function name | Produces | Example output | Template |
---|---|---|---|
bulleted
|
Bulleted lists |
|
{{unordered list}} |
unbulleted
|
Unbulleted lists |
|
{{unbulleted list}} |
horizontal
|
Horizontal bulleted lists |
|
{{hlist}} |
ordered
|
Ordered lists (numbered lists and alphabetical lists) |
|
{{ordered list}} |
horizontal_ordered
|
Horizontal ordered lists |
|
N/A |
Parameters
- Positional parameters (
1
,2
,3
...) - these are the list items. If no list items are present, the module will output nothing. start
- sets the start item for ordered lists. This can be a start number for numbered lists, or a start letter for alphabetical lists. Horizontal ordered lists only support numbers.type
- the type of marker used in ordered lists. Possible values are "1" for numbers (the default), "A" for uppercase letters, "a" for lowercase letters, "I" for uppercase Roman numerals, and "i" for lowercase Roman numerals. Not supported in horizontal ordered lists. See also thelist_style_type
parameter.list_style_type
- the type of marker used in ordered lists. This uses CSS styling, and has more types available than thetype
parameter, which uses an html attribute. Possible values are listed at MDN's list-style-type page. Support may vary by browser.list-style-type
is an alias for this parameter.class
- a custom class for the<div>...</div>
tags surrounding the list, e.g.plainlinks
.style
- a custom css style for the<div>...</div>
tags surrounding the list, e.g.font-size: 90%;
.list_style
- a custom css style for the list itself. The format is the same as for the|style=
parameter.item_style
- a custom css style for all of the list items (the<li>...</li>
tags). The format is the same as for the|style=
parameter.item1_style
,item2_style
,item3_style
... - custom css styles for each of the list items. The format is the same as for the|style=
parameter.item1_value
,item2_value
,item3_value
... - custom value for the given list item. List items following the one given will increment from the specified value. The value should be a positive integer. (Note that this option only has an effect on ordered lists.)indent
- this parameter indents the list, for horizontal and horizontal ordered lists only. The value must be a number, e.g.2
. The indent is calculated in em, and is 1.6 times the value specified. If no indent is specified, the default is zero.
Examples
- Bulleted lists
Code | Result |
---|---|
{{#invoke:list|bulleted|First item|Second item|Third item}}
|
|
{{#invoke:list|bulleted|First item|Second item|Third item|item_style=color:blue;}}
|
|
{{#invoke:list|bulleted|First item|Second item|Third item|item1_style=background-color:yellow;|item2_style=background-color:silver;}}
|
|
- Unbulleted lists
Code | Result |
---|---|
{{#invoke:list|unbulleted|First item|Second item|Third item}}
|
|
{{#invoke:list|unbulleted|First item|Second item|Third item|item_style=color:blue;}}
|
|
{{#invoke:list|unbulleted|First item|Second item|Third item|item1_style=background-color:yellow;|item2_style=background-color:silver;}}
|
|
- Horizontal lists
Code | Result |
---|---|
{{#invoke:list|horizontal|First item|Second item|Third item}}
|
|
{{#invoke:list|horizontal|First item|Second item|Third item|indent=2}}
|
|
- Ordered lists
Code | Result |
---|---|
{{#invoke:list|ordered|First item|Second item|Third item}}
|
|
{{#invoke:list|ordered|First item|Second item|Third item|start=3}}
|
|
{{#invoke:list|ordered|First item|Second item|Third item|type=i}
|
|
{{#invoke:list|ordered|First item|Second item|Third item|list_style_type=lower-greek}}
|
|
- Horizontal ordered lists
Code | Result |
---|---|
{{#invoke:list|horizontal_ordered|First item|Second item|Third item}}
|
|
{{#invoke:list|horizontal_ordered|First item|Second item|Third item|start=3}}
|
|
{{#invoke:list|horizontal_ordered|First item|Second item|Third item|indent=2}}
|
|
-- This module outputs different kinds of lists. At the moment, bulleted,
-- unbulleted, horizontal, ordered, and horizontal ordered lists are supported.
local libUtil = require('libraryUtil')
local checkType = libUtil.checkType
local mTableTools = require('Module:TableTools')
local p = {}
local listTypes = {
['bulleted'] = true,
['unbulleted'] = true,
['horizontal'] = true,
['ordered'] = true,
['horizontal_ordered'] = true
}
function p.makeListData(listType, args)
-- Constructs a data table to be passed to p.renderList.
local data = {}
-- Classes
data.classes = {}
data.templatestyles = ''
if listType == 'horizontal' or listType == 'horizontal_ordered' then
table.insert(data.classes, 'hlist')
data.templatestyles = mw.getCurrentFrame():extensionTag{
name = 'templatestyles', args = { src = 'Flatlist/styles.css' }
}
elseif listType == 'unbulleted' then
table.insert(data.classes, 'plainlist')
data.templatestyles = mw.getCurrentFrame():extensionTag{
name = 'templatestyles', args = { src = 'Plainlist/styles.css' }
}
end
table.insert(data.classes, args.class)
-- Main div style
data.style = args.style
-- Indent for horizontal lists
if listType == 'horizontal' or listType == 'horizontal_ordered' then
local indent = tonumber(args.indent)
indent = indent and indent * 1.6 or 0
if indent > 0 then
data.marginLeft = indent .. 'em'
end
end
-- List style types for ordered lists
-- This could be "1, 2, 3", "a, b, c", or a number of others. The list style
-- type is either set by the "type" attribute or the "list-style-type" CSS
-- property.
if listType == 'ordered' or listType == 'horizontal_ordered' then
data.listStyleType = args.list_style_type or args['list-style-type']
data.type = args['type']
-- Detect invalid type attributes and attempt to convert them to
-- list-style-type CSS properties.
if data.type
and not data.listStyleType
and not tostring(data.type):find('^%s*[1AaIi]%s*$')
then
data.listStyleType = data.type
data.type = nil
end
end
-- List tag type
if listType == 'ordered' or listType == 'horizontal_ordered' then
data.listTag = 'ol'
else
data.listTag = 'ul'
end
-- Start number for ordered lists
data.start = args.start
if listType == 'horizontal_ordered' then
-- Apply fix to get start numbers working with horizontal ordered lists.
local startNum = tonumber(data.start)
if startNum then
data.counterReset = 'listitem ' .. tostring(startNum - 1)
end
end
-- List style
-- ul_style and ol_style are included for backwards compatibility. No
-- distinction is made for ordered or unordered lists.
data.listStyle = args.list_style
-- List items
-- li_style is included for backwards compatibility. item_style was included
-- to be easier to understand for non-coders.
data.itemStyle = args.item_style or args.li_style
data.items = {}
for i, num in ipairs(mTableTools.numKeys(args)) do
local item = {}
item.content = args[num]
item.style = args['item' .. tostring(num) .. '_style']
or args['item_style' .. tostring(num)]
item.value = args['item' .. tostring(num) .. '_value']
or args['item_value' .. tostring(num)]
table.insert(data.items, item)
end
return data
end
function p.renderList(data)
-- Renders the list HTML.
-- Return the blank string if there are no list items.
if type(data.items) ~= 'table' or #data.items < 1 then
return ''
end
-- Render the main div tag.
local root = mw.html.create((
#data.classes > 0
or data.marginLeft
or data.style
) and 'div' or nil)
for i, class in ipairs(data.classes or {}) do
root:addClass(class)
end
root:css{['margin-left'] = data.marginLeft}
if data.style then
root:cssText(data.style)
end
-- Render the list tag.
local list = root:tag(data.listTag or 'ul')
list
:attr{start = data.start, type = data.type}
:css{
['counter-reset'] = data.counterReset,
['list-style-type'] = data.listStyleType
}
if data.listStyle then
list:cssText(data.listStyle)
end
-- Render the list items
for i, t in ipairs(data.items or {}) do
local item = list:tag('li')
if data.itemStyle then
item:cssText(data.itemStyle)
end
if t.style then
item:cssText(t.style)
end
item
:attr{value = t.value}
:wikitext(t.content)
end
return data.templatestyles .. tostring(root)
end
function p.makeList(listType, args)
if not listType or not listTypes[listType] then
error(string.format(
"bad argument #1 to 'makeList' ('%s' is not a valid list type)",
tostring(listType)
), 2)
end
checkType('makeList', 2, args, 'table')
local data = p.makeListData(listType, args)
return p.renderList(data)
end
for listType in pairs(listTypes) do
p[listType] = function (frame)
local mArguments = require('Module:Arguments')
local origArgs = mArguments.getArgs(frame)
-- Copy all the arguments to a new table, for faster indexing.
local args = {}
for k, v in pairs(origArgs) do
args[k] = v
end
return p.makeList(listType, args)
end
end
return p