Module:Namespace detect - Revision history

Bryan: 1 revision

2014-06-06T20:35:23Z

1 revision

New page

--[[
--------------------------------------------------------------------------------
-- --
-- NAMESPACE DETECT --
-- --
-- This module implements the {{namespace detect}} template in Lua, with a --
-- few improvements: all namespaces and all namespace aliases are supported, --
-- and namespace names are detected automatically for the local wiki. The --
-- module can also use the corresponding subject namespace value if it is --
-- used on a talk page. Parameter names can be configured for different wikis --
-- by altering the values in the "cfg" table in --
-- Module:Namespace detect/config. --
-- --
--------------------------------------------------------------------------------
--]]

local data = mw.loadData('Module:Namespace detect/data')
local argKeys = data.argKeys
local cfg = data.cfg
local mappings = data.mappings

local yesno = require('Module:Yesno')
local mArguments -- Lazily initialise Module:Arguments
local mTableTools -- Lazily initilalise Module:TableTools
local ustringLower = mw.ustring.lower

local p = {}

local function fetchValue(t1, t2)
-- Fetches a value from the table t1 for the first key in array t2 where
-- a non-nil value of t1 exists.
for i, key in ipairs(t2) do
local value = t1[key]
if value ~= nil then
return value
end
end
return nil
end

local function equalsArrayValue(t, value)
-- Returns true if value equals a value in the array t. Otherwise
-- returns false.
for i, arrayValue in ipairs(t) do
if value == arrayValue then
return true
end
end
return false
end

function p.getPageObject(page)
-- Get the page object, passing the function through pcall in case of
-- errors, e.g. being over the expensive function count limit.
if page then
local success, pageObject = pcall(mw.title.new, page)
if success then
return pageObject
else
return nil
end
else
return mw.title.getCurrentTitle()
end
end

-- Provided for backward compatibility with other modules
function p.getParamMappings()
return mappings
end

local function getNamespace(args)
-- This function gets the namespace name from the page object.
local page = fetchValue(args, argKeys.demopage)
if page == '' then
page = nil
end
local demospace = fetchValue(args, argKeys.demospace)
if demospace == '' then
demospace = nil
end
local subjectns = fetchValue(args, argKeys.subjectns)
local ret
if demospace then
-- Handle "demospace = main" properly.
if equalsArrayValue(argKeys.main, ustringLower(demospace)) then
ret = mw.site.namespaces[0].name
else
ret = demospace
end
else
local pageObject = p.getPageObject(page)
if pageObject then
if pageObject.isTalkPage then
-- Get the subject namespace if the option is set,
-- otherwise use "talk".
if yesno(subjectns) then
ret = mw.site.namespaces[pageObject.namespace].subject.name
else
ret = 'talk'
end
else
ret = pageObject.nsText
end
else
return nil -- return nil if the page object doesn't exist.
end
end
ret = ret:gsub('_', ' ')
return ustringLower(ret)
end

function p._main(args)
-- Check the parameters stored in the mappings table for any matches.
local namespace = getNamespace(args) or 'other' -- "other" avoids nil table keys
local params = mappings[namespace] or {}
local ret = fetchValue(args, params)
--[[
-- If there were no matches, return parameters for other namespaces.
-- This happens if there was no text specified for the namespace that
-- was detected or if the demospace parameter is not a valid
-- namespace. Note that the parameter for the detected namespace must be
-- completely absent for this to happen, not merely blank.
--]]
if ret == nil then
ret = fetchValue(args, argKeys.other)
end
return ret
end

function p.main(frame)
mArguments = require('Module:Arguments')
local args = mArguments.getArgs(frame, {removeBlanks = false})
local ret = p._main(args)
return ret or ''
end

function p.table(frame)
--[[
-- Create a wikitable of all subject namespace parameters, for
-- documentation purposes. The talk parameter is optional, in case it
-- needs to be excluded in the documentation.
--]]

-- Load modules and initialise variables.
mTableTools = require('Module:TableTools')
local namespaces = mw.site.namespaces
local cfg = data.cfg
local useTalk = type(frame) == 'table'
and type(frame.args) == 'table'
and yesno(frame.args.talk) -- Whether to use the talk parameter.

-- Get the header names.
local function checkValue(value, default)
if type(value) == 'string' then
return value
else
return default
end
end
local nsHeader = checkValue(cfg.wikitableNamespaceHeader, 'Namespace')
local aliasesHeader = checkValue(cfg.wikitableAliasesHeader, 'Aliases')

-- Put the namespaces in order.
local mappingsOrdered = {}
for nsname, params in pairs(mappings) do
if useTalk or nsname ~= 'talk' then
local nsid = namespaces[nsname].id
-- Add 1, as the array must start with 1; nsid 0 would be lost otherwise.
nsid = nsid + 1
mappingsOrdered[nsid] = params
end
end
mappingsOrdered = mTableTools.compressSparseArray(mappingsOrdered)

-- Build the table.
local ret = '{| class="wikitable"'
.. '\n|-'
.. '\n! ' .. nsHeader
.. '\n! ' .. aliasesHeader
for i, params in ipairs(mappingsOrdered) do
for j, param in ipairs(params) do
if j == 1 then
ret = ret .. '\n|-'
.. '\n| <code>' .. param .. '</code>'
.. '\n| '
elseif j == 2 then
ret = ret .. '<code>' .. param .. '</code>'
else
ret = ret .. ', <code>' .. param .. '</code>'
end
end
end
ret = ret .. '\n|-'
.. '\n|}'
return ret
end

return p

Bryan: 1 revision

2014-03-31T07:35:37Z

1 revision

New page

--[[
--------------------------------------------------------------------------------
-- --
-- NAMESPACE DETECT --
-- --
-- This module implements the {{namespace detect}} template in Lua, with a --
-- few improvements: all namespaces and all namespace aliases are supported, --
-- and namespace names are detected automatically for the local wiki. The --
-- module can also use the corresponding subject namespace value if it is --
-- used on a talk page. Parameter names can be configured for different wikis --
-- by altering the values in the "cfg" table in --
-- Module:Namespace detect/config. --
-- --
--------------------------------------------------------------------------------
--]]

local data = mw.loadData('Module:Namespace detect/data')
local argKeys = data.argKeys
local cfg = data.cfg
local mappings = data.mappings

local yesno = require('Module:Yesno')
local mArguments -- Lazily initialise Module:Arguments
local mTableTools -- Lazily initilalise Module:TableTools
local ustringLower = mw.ustring.lower

local p = {}

local function fetchValue(t1, t2)
-- Fetches a value from the table t1 for the first key in array t2 where
-- a non-nil value of t1 exists.
for i, key in ipairs(t2) do
local value = t1[key]
if value ~= nil then
return value
end
end
return nil
end

local function equalsArrayValue(t, value)
-- Returns true if value equals a value in the array t. Otherwise
-- returns false.
for i, arrayValue in ipairs(t) do
if value == arrayValue then
return true
end
end
return false
end

function p.getPageObject(page)
-- Get the page object, passing the function through pcall in case of
-- errors, e.g. being over the expensive function count limit.
if page then
local success, pageObject = pcall(mw.title.new, page)
if success then
return pageObject
else
return nil
end
else
return mw.title.getCurrentTitle()
end
end

-- Provided for backward compatibility with other modules
function p.getParamMappings()
return mappings
end

local function getNamespace(args)
-- This function gets the namespace name from the page object.
local page = fetchValue(args, argKeys.page)
if page == '' then
page = nil
end
local demospace = fetchValue(args, argKeys.demospace)
if demospace == '' then
demospace = nil
end
local subjectns = fetchValue(args, argKeys.subjectns)
local ret
if demospace then
-- Handle "demospace = main" properly.
if equalsArrayValue(argKeys.main, ustringLower(demospace)) then
ret = mw.site.namespaces[0].name
else
ret = demospace
end
else
local pageObject = p.getPageObject(page)
if pageObject then
if pageObject.isTalkPage then
-- Get the subject namespace if the option is set,
-- otherwise use "talk".
if yesno(subjectns) then
ret = mw.site.namespaces[pageObject.namespace].subject.name
else
ret = 'talk'
end
else
ret = pageObject.nsText
end
else
return nil -- return nil if the page object doesn't exist.
end
end
ret = ret:gsub('_', ' ')
return ustringLower(ret)
end

function p._main(args)
-- Check the parameters stored in the mappings table for any matches.
local namespace = getNamespace(args) or 'other' -- "other" avoids nil table keys
local params = mappings[namespace] or {}
local ret = fetchValue(args, params)
--[[
-- If there were no matches, return parameters for other namespaces.
-- This happens if there was no text specified for the namespace that
-- was detected or if the demospace parameter is not a valid
-- namespace. Note that the parameter for the detected namespace must be
-- completely absent for this to happen, not merely blank.
--]]
if ret == nil then
ret = fetchValue(args, argKeys.other)
end
return ret
end

function p.main(frame)
mArguments = require('Module:Arguments')
local args = mArguments.getArgs(frame, {removeBlanks = false})
local ret = p._main(args)
return ret or ''
end

function p.table(frame)
--[[
-- Create a wikitable of all subject namespace parameters, for
-- documentation purposes. The talk parameter is optional, in case it
-- needs to be excluded in the documentation.
--]]

-- Load modules and initialise variables.
mTableTools = require('Module:TableTools')
local namespaces = mw.site.namespaces
local cfg = data.cfg
local useTalk = type(frame) == 'table'
and type(frame.args) == 'table'
and yesno(frame.args.talk) -- Whether to use the talk parameter.

-- Get the header names.
local function checkValue(value, default)
if type(value) == 'string' then
return value
else
return default
end
end
local nsHeader = checkValue(cfg.wikitableNamespaceHeader, 'Namespace')
local aliasesHeader = checkValue(cfg.wikitableAliasesHeader, 'Aliases')

-- Put the namespaces in order.
local mappingsOrdered = {}
for nsname, params in pairs(mappings) do
if useTalk or nsname ~= 'talk' then
local nsid = namespaces[nsname].id
-- Add 1, as the array must start with 1; nsid 0 would be lost otherwise.
nsid = nsid + 1
mappingsOrdered[nsid] = params
end
end
mappingsOrdered = mTableTools.compressSparseArray(mappingsOrdered)

-- Build the table.
local ret = '{| class="wikitable"'
.. '\n|-'
.. '\n! ' .. nsHeader
.. '\n! ' .. aliasesHeader
for i, params in ipairs(mappingsOrdered) do
for j, param in ipairs(params) do
if j == 1 then
ret = ret .. '\n|-'
.. '\n| <code>' .. param .. '</code>'
.. '\n| '
elseif j == 2 then
ret = ret .. '<code>' .. param .. '</code>'
else
ret = ret .. ', <code>' .. param .. '</code>'
end
end
end
ret = ret .. '\n|-'
.. '\n|}'
return ret
end

return p

Bryan: 1 revision

2013-11-01T06:30:10Z

1 revision

New page

----------------------------------------------------------------------------------------------------
-- --
-- NAMESPACE DETECT --
-- --
-- This module implements the {{namespace detect}} template in Lua, with a few --
-- improvements: all namespaces and all namespace aliases are supported, and namespace --
-- names are detected automatically for the local wiki. The module can also use the --
-- corresponding subject namespace value if it is used on a talk page. Parameter names --
-- can be configured for different wikis by altering the values in the "cfg" table. --
-- --
----------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------
-- Configuration data --
-- Language-specific parameter names can be set here. --
----------------------------------------------------------------------------------------------------

local cfg = {}

-- This parameter displays content for the main namespace:
cfg.main = 'main'

-- This parameter displays in talk namespaces:
cfg.talk = 'talk'

-- This parameter displays content for "other" namespaces (namespaces for which
-- parameters have not been specified, or for when cfg.demospace is set to cfg.other):
cfg.other = 'other'

-- This parameter makes talk pages behave as though they are the corresponding subject namespace.
-- Note that this parameter is used with [[Module:Yesno]]. Edit that module to change
-- the default values of "yes", "no", etc.
cfg.subjectns = 'subjectns'

-- This parameter sets a demonstration namespace:
cfg.demospace = 'demospace'

-- This parameter sets a specific page to compare:
cfg.page = 'page'

-- The header for the namespace column in the wikitable containing the list of possible subject-space parameters.
cfg.wikitableNamespaceHeader = 'Namespace'

-- The header for the wikitable containing the list of possible subject-space parameters.
cfg.wikitableAliasesHeader = 'Aliases'

----------------------------------------------------------------------------------------------------
-- End configuration data --
----------------------------------------------------------------------------------------------------

local yesno = require('Module:Yesno')

local p = {}

function p.getPageObject(page)
-- Get the page object, passing the function through pcall in case we are over the expensive function count limit.
if page then
local noError, pageObject = pcall(mw.title.new, page)
if not noError then
return nil
else
return pageObject
end
else
return mw.title.getCurrentTitle()
end
end

function p.getParamMappings()
--[[ Returns a table of how parameter names map to namespace names. The keys are the actual namespace
names, in lower case, and the values are the possible parameter names for that namespace, also in
lower case. The table entries are structured like this:
{
[''] = {'main'},
['wikipedia'] = {'wikipedia', 'project', 'wp'},
...
}
]]
local mappings = {}
mappings[mw.ustring.lower(mw.site.namespaces[0].name)] = {cfg.main}
mappings[cfg.talk] = {cfg.talk}
for nsid, ns in pairs(mw.site.subjectNamespaces) do
if nsid ~= 0 then -- Exclude main namespace.
local nsname = mw.ustring.lower(ns.name)
local canonicalName = mw.ustring.lower(ns.canonicalName)
mappings[nsname] = {nsname}
if canonicalName ~= nsname then
table.insert(mappings[nsname], canonicalName)
end
for _, alias in ipairs(ns.aliases) do
table.insert(mappings[nsname], mw.ustring.lower(alias))
end
end
end
return mappings
end

local function getNamespace(args)
-- Gets the namespace name from the page object.
local page = args[cfg.page]
local demospace = args[cfg.demospace]
local subjectns = args[cfg.subjectns]
local ret
if demospace then
-- Handle "demospace = main" properly.
if mw.ustring.lower(demospace) == cfg.main then
ret = mw.site.namespaces[0].name
else
ret = demospace
end
else
local pageObject = p.getPageObject(page)
if pageObject then
if pageObject.isTalkPage then
-- If cfg.subjectns is set, get the subject namespace, otherwise use cfg.talk.
if yesno(subjectns) then
ret = mw.site.namespaces[pageObject.namespace].subject.name
else
ret = cfg.talk
end
else
ret = pageObject.nsText
end
else
return nil -- return nil if the page object doesn't exist.
end
end
ret = mw.ustring.gsub(ret, '_', ' ')
return mw.ustring.lower(ret)
end

function p._main(args)
-- Get the namespace to compare the parameters to, and the parameter mapping table.
local namespace = getNamespace(args)
local mappings = p.getParamMappings()
-- Check for any matches in the namespace arguments. The order we check them doesn't matter,
-- as there can only be one match.
for ns, params in pairs(mappings) do
if ns == namespace then
-- Check all aliases for matches. The default local namespace is checked first, as
-- {{namespace detect}} checked these before alias names.
for _, param in ipairs(params) do
if args[param] ~= nil then
return args[param]
end
end
end
end
-- If there were no matches, return parameters for other namespaces. This happens if there
-- was no text specified for the namespace that was detected or if the demospace parameter
-- is not a valid namespace. Note that the parameter for the detected namespace must be
-- completely absent for this to happen, not merely blank.
if args[cfg.other] ~= nil then
return args[cfg.other]
end
end

function p.main(frame)
-- If called via #invoke, use the args passed into the invoking template, or the args
-- passed to #invoke if any exist. Otherwise assume args are being passed directly in.
local origArgs
if frame == mw.getCurrentFrame() then
origArgs = frame:getParent().args
for k, v in pairs(frame.args) do
origArgs = frame.args
break
end
else
origArgs = frame
end
-- Trim whitespace and remove blank arguments for demospace and page parameters.
local args = {}
for k, v in pairs(origArgs) do
if type(v) == 'string' then
v = mw.text.trim(v) -- Trim whitespace.
end
if k == cfg.demospace or k == cfg.page then
if v ~= '' then
args[k] = v
end
else
args[k] = v
end
end
return p._main(args)
end

function p.table(frame)
--[[ Create a wikitable of all subject namespace parameters, for documentation purposes. The talk
parameter is optional, in case it needs to be excluded in the documentation.
]]
local useTalk = type(frame) == 'table' and type(frame.args) == 'table' and frame.args.talk == 'yes' -- Whether to use the talk parameter.
local mappings = p.getParamMappings()
-- Start the wikitable.
local ret = '{| class="wikitable"'
.. '\n|-'
.. '\n! ' .. cfg.wikitableNamespaceHeader
.. '\n! ' .. cfg.wikitableAliasesHeader

-- Generate the row for the main namespace, as we want this to be first in the list.
ret = ret .. '\n|-'
.. '\n| <code>' .. cfg.main .. '</code>'
.. '\n|'
if useTalk then
ret = ret .. '\n|-'
.. '\n| <code>' .. cfg.talk .. '</code>'
.. '\n|'
end
-- Enclose all parameter names in <code> tags.
for ns, params in pairs(mappings) do
if ns ~= mw.site.namespaces[0].name then
for i, param in ipairs(params) do
mappings[ns][i] = '<code>' .. param .. '</code>'
end
end
end
-- Generate the other wikitable rows.
for ns, params in pairs(mappings) do
if ns ~= mw.site.namespaces[0].name then -- Ignore the main namespace.
ret = ret .. '\n|-'
.. '\n| ' .. params[1]
.. '\n| ' .. table.concat(params, ', ', 2)
end
end
-- End the wikitable.
ret = ret .. '\n|-'
.. '\n|}'
return ret
end

return p

Bryan: 1 revision

2013-10-22T07:11:40Z

1 revision

New page

----------------------------------------------------------------------------------------------------
-- --
-- NAMESPACE DETECT --
-- --
-- This module implements the {{namespace detect}} template in Lua, with a few --
-- improvements: all namespaces and all namespace aliases are supported, and namespace --
-- names are detected automatically for the local wiki. Function names can be configured --
-- for different wikis by altering the values in the "cfg" table. --
-- --
----------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------
-- Configuration data --
-- Language-specific parameter names can be set here. --
----------------------------------------------------------------------------------------------------

local cfg = {}

-- The name for the parameter to display content for the main namespace:
cfg.main = 'main'

-- The name for the parameter to display content in talk namespaces:
cfg.talk = 'talk'

-- The name for the parameter to display content for "other" namespaces (namespaces for which
-- parameters have not been specified, or for when cfg.demospace is set to cfg.other):
cfg.other = 'other'

-- The name for the parameter to set a demonstration namespace:
cfg.demospace = 'demospace'

-- The name for the parameter to set a specific page to compare:
cfg.page = 'page'

-- The header for the namespace column in the wikitable containing the list of possible
-- subject-space parameters.
cfg.wikitableNamespaceHeader = 'Namespace'

-- The header for the wikitable containing the list of possible subject-space parameters.
cfg.wikitableAliasesHeader = 'Aliases'

----------------------------------------------------------------------------------------------------
-- End configuration data --
----------------------------------------------------------------------------------------------------

-- Declare the table of functions to return.
local p = {}

-- Get the page object. This will return the page object for the page specified, or nil if there are
-- errors in the title or if the expensive function count has been exceeded.
function p.getPageObject(page)
if page then
-- Get the page object, passing the function through pcall in case we are over the expensive
-- function count limit.
local noError, pageObject = pcall(mw.title.new, page)
if not noError then
return nil
else
return pageObject
end
else
return mw.title.getCurrentTitle()
end
end

--[[ Returns a table of how parameter names map to namespace names. The keys are the actual namespace
names, in lower case, and the values are the possible parameter names for that namespace, also in
lower case. The table entries are structured like this:
[''] = {
{'main'},
},
['wikipedia'] = {
{'wikipedia', 'project', 'wp'}
}
]]
function p.getParamMappings()
local mappings = {}
mappings[mw.ustring.lower(mw.site.namespaces[0].name)] = {cfg.main}
mappings[cfg.talk] = {cfg.talk}
for nsid, ns in pairs(mw.site.subjectNamespaces) do
if nsid ~= 0 then -- Exclude main namespace.
local nsname = mw.ustring.lower(ns.name)
local canonicalName = mw.ustring.lower(ns.canonicalName)
mappings[nsname] = {nsname}
if canonicalName ~= nsname then
table.insert(mappings[nsname], canonicalName)
end
for _, alias in ipairs(ns.aliases) do
table.insert(mappings[nsname], mw.ustring.lower(alias))
end
end
end
return mappings
end

--[[ Create a wikitable of all subject namespace parameters, for documentation purposes. The talk
parameter is optional, in case it needs to be excluded in the documentation.
]]
function p.table(frame)
-- Find whether to use the talk link or not.
local useTalk = type(frame) == 'table' and type(frame.args) == 'table' and frame.args.talk == 'yes'

-- Get the parameter mappings.
local mappings = p.getParamMappings()

-- Start the wikitable.
local ret = '{| class="wikitable"'
.. '\n|-'
.. '\n! ' .. cfg.wikitableNamespaceHeader
.. '\n! ' .. cfg.wikitableAliasesHeader

-- Generate the row for the main namespace, as we want this
-- to be first in the list.
ret = ret .. '\n|-'
.. '\n| <code>' .. cfg.main .. '</code>'
.. '\n|'

if useTalk then
ret = ret .. '\n|-'
.. '\n| <code>' .. cfg.talk .. '</code>'
.. '\n|'
end

-- Enclose all parameter names in <code> tags.
for ns, params in pairs(mappings) do
if ns ~= mw.site.namespaces[0].name then
for i, param in ipairs(params) do
mappings[ns][i] = '<code>' .. param .. '</code>'
end
end
end

-- Generate the other wikitable rows.
for ns, params in pairs(mappings) do
if ns ~= mw.site.namespaces[0].name then -- Ignore the main namespace.
ret = ret .. '\n|-'
.. '\n| ' .. params[1]
.. '\n| ' .. table.concat(params, ', ', 2)
end
end

-- End the wikitable.
ret = ret .. '\n|-'
.. '\n|}'

return ret
end

-- Gets the namespace name to compare to the arguments. The returned value is lower-case.
local function getNamespace(page, demospace)
local ret
if demospace then
-- Handle "demospace = main" properly.
if mw.ustring.lower(demospace) == cfg.main then
ret = mw.site.namespaces[0].name
else
ret = demospace
end
else
local pageObject = p.getPageObject(page)
if pageObject then
if pageObject.isTalkPage then
-- {{namespace detect}} uses the same value for all talk namespaces, so that's what
-- the module should do too.
ret = cfg.talk
else
ret = pageObject.nsText
end
else
return nil -- return nil if the page object doesn't exist.
end
end
return mw.ustring.lower(ret)
end

-- Compare the namespace found with the parameters that have been specified, and return content of
-- the appropriate parameter.
function p._main(args)
-- Get the namespace to compare the parameters to, and the parameter mapping table.
local namespace = getNamespace(args[cfg.page], args[cfg.demospace])
local mappings = p.getParamMappings()

-- Check for any matches in the namespace arguments. The order we check them doesn't matter,
-- as there can only be one match.
for ns, params in pairs(mappings) do
if ns == namespace then
-- Check all aliases for matches. The default local namespace is checked first, as
-- {{namespace detect}} checked these before alias names.
for _, param in ipairs(params) do
if args[param] then
return args[param]
end
end
end
end

-- If there were no matches, return parameters for other namespaces. This happens if there
-- was no text specified for the namespace that was detected or if the demospace parameter
-- is not a valid namespace. Note that the parameter for the detected namespace must be
-- completely absent for this to happen, not merely blank.
if args[cfg.other] then
return args[cfg.other]
end
end

function p.main(frame)
-- If called via #invoke, use the args passed into the invoking template, or the args
-- passed to #invoke if any exist. Otherwise assume args are being passed directly in.
local origArgs
if frame == mw.getCurrentFrame() then
origArgs = frame:getParent().args
for k, v in pairs(frame.args) do
origArgs = frame.args
break
end
else
origArgs = frame
end

-- Trim whitespace and remove blank arguments for demospace and page parameters.
local args = {}
for k, v in pairs(origArgs) do
if type(v) == 'string' then
v = mw.text.trim(v) -- Trim whitespace.
end
if k == cfg.demospace or k == cfg.page then
if v ~= '' then
args[k] = v
end
else
args[k] = v
end
end

return p._main(args)
end

return p