Module:Excerpt: Difference between revisions

Revision as of 11:04, 22 May 2018

Revision as of 12:16, 22 May 2018

Line 7:

if errors then error(text, 2) end

return ""

end

-- In text, match pre..list[1]..post or pre..list[2]..post or ...

local function matchany(text, pre, list, post)

local match

for i = 1, #list do

local altmatch = mw.ustring.match(text, "|%s*alt%s*=%s*(pre .. list[^}|i]*)" .. post)

if match then return match end

end

return nil

end

-- Check image for suitability

local function checkimage(image)

local page = mw.ustring.matchmatchany(image, "(", {"[Ff]ile", "[Ii]mage"}, "%s*:[^|%]]*)") -- match File:(name) ...or Image:(name)

or mw.ustring.match(image, "([Ii]mage%s*:[^|%]]*)") -- or Image:(name) ...

if not page then return false end

-- Limit to image types: .gif, .jpg, .jpeg, .png, .svg, .tiff, .xcf (exclude .ogg audio etc.)

if not mw.ustring.matchmatchany(page, "%.", {"[Gg][Ii][Ff]", "[Jj][Pp][Ee]?[Gg]", "[Pp][Nn][Gg]", "[Ss][Vv][Gg]", "[Tt][Ii][Ff][Ff]", "[Xx][Cc][Ff]"}, "%s*$") then

return false

and not mw.ustring.match(page, "%.[Jj][Pp][Ee]?[Gg]%s*$")

end

and not mw.ustring.match(page, "%.[Pp][Nn][Gg]%s*$")

and not mw.ustring.match(page, "%.[Ss][Vv][Gg]%s*$")

and not mw.ustring.match(page, "%.[Tt][Ii][Ff][Ff]%s*$")

and not mw.ustring.match(page, "%.[Xx][Cc][Ff]%s*$") then return false end

local title = mw.title.new(":" .. page) -- Read description page (for :File:Foo rather than File:Foo)

Line 38 ⟶ 44:

local startre = ""

if start then startre = "^" end -- a true flag restricts search to start of string

local image = mw.ustring.matchmatchany(text, startre .. "%[%[%s*", {"[Ff]ile", "[Ii]mage"}, "%s*:.*") -- [[File: or [[Image: ...

or mw.ustring.match(text, startre .. "%[%[%s*[Ii]mage%s*:.*") -- or [[Image: ...

if image then

image = mw.ustring.match(image, "%b[]%s*") -- matching [[...]] to handle wikilinks nested in caption

Line 50 ⟶ 55:

local token = nil

if mw.ustring.match(text, "{{%s*[Ii]nfobox") then

local image = mw.ustring.matchmatchany(text, "|%s*", {"image", "PD_image", "image_flag", "Ship image", "Cover"}, "%s*=%s*([^}|].*)") -- parse image= argument...

or mw.ustring.match(text, "|%s*PD_image%s*=%s*([^}|]-)") -- or its known alternatives such as...

or mw.ustring.match(text, "|%s*image_flag%s*=%s*([^}|]-)") -- image_flag= from Infobox country

or mw.ustring.match(text, "|%s*Cover%s*=%s*([^}|]-)") -- or Cover= from Infobox album

if image then -- add in relevant optional parameters: caption, alt text and image size

token = "[["parseimage(image, true) -- Addlook File: unless name already beginsfor image=[[File:...]] or Image:etc.

if not (mw.ustring.match(image,token "^[Ff]ile%s*:")then

image or= mw.ustring.match(image, "^[Ii^}|]mage%s*:")) then-- remove later arguments

token = token"[[" ..-- Add "File:" unless name already begins File: or Image:

if not matchany(image, "^", {"[Ff]ile", "[Ii]mage"}, "%s*:") then

if alt then token = token .. "|alt=File:" .. alt end

end

token = token .. image

local caption = mw.ustring.matchmatchany(text, "|%s*", {"[Cc]aption", "Ship caption"}, "%s*=%s*([^}|]*)")

if caption then token = token .. "|" .. caption end

local andalt not= mw.ustring.match(pagetext, "|%.[Pp][Nn][Gg]s*alt%s*$=%s*([^}|]*)")

if image_sizealt then token = token .. "|alt=" .. image_sizealt end

local orimage_size = mw.ustring.match(text, "|%s*PD_imageimage_size%s*=%s*([^}|]-*)") -- or its known alternatives such as...

if image_size then token = token .. "|" .. image_size end

token = mw.ustring.gsub(token, "\n","") .. "]]\n"

end

token = mw.ustring.gsub(token, "\n","") .. image"\n"

local caption = mw.ustring.match(text, "|%s*[Cc]aption%s*=%s*([^}|]*)")

if caption then token = token .. "|" .. caption end

local alt = mw.ustring.match(text, "|%s*alt%s*=%s*([^}|]*)")

if alt then token = token .. "|alt=" .. alt end

local image_size = mw.ustring.match(text, "|%s*image_size%s*=%s*([^}|]*)")

if image_size then token = token .. "|" .. image_size end

token = mw.ustring.gsub(token, "\n","") .. "]]\n"

end

end

Line 157 ⟶ 164:

t = t .. token

elseif files < maxfile then -- discard template, but if we are still collecting images...

local image = parseimageargimage(token, false) or argimageparseimage(token, false) -- look for embedded [[File:...]], |image=, etc.

if image and checkimage(image) then -- if image is found and qualifies (not a sound file, non-free, etc.)

files = files + 1 -- count the file, whether displaying it or not

Line 163 ⟶ 170:

image = mw.ustring.gsub(image, "|%s*frameless%s*%f[|%]]", "") -- make image a thumbnail, not frameless etc.

image = mw.ustring.gsub(image, "|%s*framed?%s*%f[|%]]", "")

if not mw.ustring.matchmatchany(image, "|%s*", {"thumb", "thumbnail"}, "%s*%f[|%]]") then

and not mw.ustring.match(image, "|%s*thumbnail%s*%f[|%]]") then

image = mw.ustring.gsub(image, "(%]%]%s*)$", "|thumb%1")

end