Module:Text
Text – Module containing methods for the manipulation of text, wikimarkup and some HTML.
Functions for templates
All methods have an unnamed parameter containing the text.
The return value is an empty string if the parameter does not meet the conditions. When the condition is matched or some result is successfully found, strings of at least one character are returned.
- char
- Creates a string from a list of character codes.
- 1
- Space-separated list of character codes
- *
- Number of repetitions of the list in parameter 1; (Default 1).
- errors
0– Silence errors
- concatParams
- Combine any number of elements into a list, like
table.concat()in Lua. - From a template:
- 1
- First element; missing and empty elements are ignored.
- 2 3 4 5 6 …
- Further list elements
- From Lua
- args
- table (sequence) of the elements
- apply
- Separator between elements; defaults to
| - adapt
- optional formatting, which will be applied to each element; must contain
%s.
- containsCJK
- Returns whether the input string contains any CJK characters
- Returns nothing if there are no CJK characters
- removeDelimited
- Remove all text between delimiters, including the delimiters themselves.
- getPlain
- Remove wikimarkup (except templates): comments, tags, bold, italic, nbsp
- isLatinRange
- Returns some content, unless the string contains a character that would not normally be found in Latin text.
- Returns nothing if there is a non-Latin string.
- isQuote
- Returns some content if the parameter passed is a single character, and that character is a quote, such as
'.- Returns nothing for multiple characters, or if the character passed is not a quote.
- listToText
- Formats list elements analogously to mw.text.listToText().
- The elements are separated by a comma and space ; the word "and" appears between the first and last.
- Unnamed parameters become the list items.
- Optional parameters for
#invoke:format– Every list element will first be formatted with this format string; see here for how to construct this string. The string must contain at least one%ssequence.template=1– List elements should be taken from the calling template.
- Returns the resulting string.
- quote
- Wrap the string in quotes; quotes can be chosen for a specific language.
- 1
- Input text (will be automatically trimmed); may be empty.
- 2
- (optional) the ISO 639 language code for the quote marks; should be one of the supported languages Template:In lang
- 3
- (optional)
2for second level quotes. This means the single quote marks in a statement such as: Jack said, “Jill said ‘fish’ last Tuesday.”
- quoteUnquoted
- Wrap the string in quotes; quotes can be chosen for a specific language. Will not quote an empty string, and will not quote if there is a quote at the start or end of the (trimmed) string.
- 1
- Input text (will be automatically trimmed); may be empty.
- 2
- (optional) the ISO 639 language code for the quote marks; should be one of the supported languages Template:In lang
- 3
- (optional)
2for second level quotes. This means the single quote marks in a statement such as: Jack said, “Jill said ‘fish’ last Tuesday.”
- removeDiacritics
- Removes all diacritical marks from the input.
- 1
- Input text
- sentenceTerminated
- Is this sentence terminated? Should work with CJK, and allows quotation marks to follow.
- Returns nothing if the sentence is unterminated.
- ucfirstAll
- The first letter of every recognized word is converted to upper case. This contrasts with the parser function {{ucfirst:}} which changes only the first character of the whole string passed.
- A few common HTML entities are protected; the implementation of this may mean that numerical entities passed (e.g.
&)are converted to&form - uprightNonlatin
- Takes a string. Italicized non-Latin characters are un-italicized, unless they are a single Greek letter.
- zip
- Combines a tuple of lists by convolution. This is easiest to explain by example: given two lists, list1 = "a b c" and list2 = "1 2 3", then
zip(liste1, liste2, sep = " ", isep = "-", osep = "/")
outputsa-1/b-2/c-3- 1, 2, 3, … – Lists to be combined
sep– A separator (in Lua regex form) used to split the lists. If empty, the lists are split into individual characters.sep1,sep2,sep3, … – Allows a different separator to be used for each list.isep– Output separator; placed between elements which were at the same index in their lists.osep– Output separator; placed between elements which had different original indices; i.e. between the groups joined withisep
Examples and test page
There are tests available Template:In lang to illustrate this in practice.
Use in another Lua module
All of the above functions can be called from other Lua modules. Use require(); the below code checks for errors loading it:
local lucky, Text = pcall( require, "Module:Text" )
if type( Text ) == "table" then
Text = Text.Text()
else
-- In the event of errors, Text is an error message.
return "<span class=\"error\">" .. Text .. "</span>"
endYou may then call:
- Text.char( apply, again, accept )
- Text.concatParams( args, separator, format )
- Text.containsCJK( s )
- Text.removeDelimited( s )
- Text.getPlain( s )
- Text.isLatinRange( s )
- Text.isQuote( c )
- Text.listToText( table, format )
- Text.quote( s, lang, mode )
- Text.quoteUnquoted( s, lang, mode )
- Text.removeDiacritics( s )
- Text.sentenceTerminated( s )
- Text.ucfirstAll( s )
- Text.uprightNonlatin( s )
Text.zip(…)- Text.test( s )
Usage
This is a general library; use it anywhere.
Dependencies
None.
See also
Template:String-handling templates
--[=[ 2014-09-27
Text utilities
]=]
local Text = { }
local patternCJK = false
local patternLatin = false
local patternTerminated = false
Text.concatParams = function ( args, apply, adapt )
-- Concat list items into one string
-- Parameter:
-- args -- table (sequence) with numKey=string
-- apply -- string (optional); separator (default: "|")
-- adapt -- string (optional); format including "%s"
-- Returns: string
local collect = { }
for k, v in pairs( args ) do
if type( k ) == "number" then
v = mw.text.trim( v )
if v ~= "" then
if adapt then
v = mw.ustring.format( adapt, v )
end
table.insert( collect, v )
end
end
end
return table.concat( collect, apply or "|" )
end -- Text.concatParams()
Text.containsCJK = function ( analyse )
-- Is any CJK code within?
-- Parameter:
-- analyse -- string
-- Returns: true, if CJK detected
local r
if not patternCJK then
patternCJK = mw.ustring.char( 91,
13312, 45, 40959,
131072, 45, 178207,
93 )
end
if mw.ustring.find( analyse, patternCJK ) then
r = true
else
r = false
end
return r
end -- Text.containsCJK()
Text.listToText = function ( args, adapt )
-- Format list items similar to mw.text.listToText()
-- Parameter:
-- args -- table (sequence) with numKey=string
-- adapt -- string (optional); format including "%s"
-- Returns: string
local collect = { }
for k, v in pairs( args ) do
if type( k ) == "number" then
v = mw.text.trim( v )
if v ~= "" then
if adapt then
v = mw.ustring.format( adapt, v )
end
table.insert( collect, v )
end
end
end
return mw.text.listToText( collect )
end -- Text.listToText()
Text.sentenceTerminated = function ( analyse )
-- Is string terminated by dot, question or exclamation mark?
-- Quotation, link termination and so on granted
-- Parameter:
-- analyse -- string
-- Returns: true, if sentence terminated
local r
if not patternTerminated then
patternTerminated = mw.ustring.char( 91,
12290,
65281,
65294,
65311 )
.. "!%.%?…][\"'%]‹›«»‘’“”]*$"
end
if mw.ustring.find( analyse, patternTerminated ) then
r = true
else
r = false
end
return r
end -- Text.sentenceTerminated()
Text.ucfirstAll = function ( adjust )
-- Capitalize all words
-- Precondition:
-- adjust -- string
-- Returns: string with all first letters in upper case
local r = " " .. adjust
local i = 1
local c, j, m
if adjust:find( "&" ) then
r = r:gsub( "&", "&" )
:gsub( "<", "<" )
:gsub( ">", ">" )
:gsub( " ", " " )
:gsub( " ", " " )
:gsub( "‌", "‌" )
:gsub( "‍", "‍" )
:gsub( "‎", "‎" )
:gsub( "‏", "‏" )
m = true
end
while i do
i = mw.ustring.find( r, "%W%l", i )
if i then
j = i + 1
c = mw.ustring.upper( mw.ustring.sub( r, j, j ) )
r = string.format( "%s%s%s",
mw.ustring.sub( r, 1, i ),
c,
mw.ustring.sub( r, i + 2 ) )
i = j
end
end -- while i
r = r:sub( 2 )
if m then
r = r:gsub( "&", "&" )
:gsub( "<", "<" )
:gsub( ">", ">" )
:gsub( " ", " " )
:gsub( " ", " " )
:gsub( "‌", "‌" )
:gsub( "‍", "‍" )
:gsub( "‎", "‎" )
:gsub( "‏", "‏" )
:gsub( "&#X(%x+);", "&#x%1;" )
end
return r
end -- Text.ucfirstAll()
Text.uprightNonlatin = function ( adjust )
-- Ensure non-italics for non-latin text parts
-- One single greek letter might be granted
-- Precondition:
-- adjust -- string
-- Returns: string with non-latin parts enclosed in <span>
local r
if not patternLatin then
patternLatin = mw.ustring.char( 94, 91,
7, 45, 591,
8194, 45, 8250,
93, 42, 36 )
end
if mw.ustring.match( adjust, patternLatin ) then
-- latin only, horizontal dashes, quotes
r = adjust
else
local c
local j = false
local k = 1
local m = false
local n = mw.ustring.len( adjust )
local span = "%s%s<span style='font-style:normal'>%s</span>"
local flat = function ( a )
-- isLatin
return a <= 591 or ( a >= 8194 and a <= 8250 )
end -- flat()
local form = function ( a )
return string.format( span,
r,
mw.ustring.sub( adjust, k, j - 1 ),
mw.ustring.sub( adjust, j, a ) )
end -- form()
r = ""
for i = 1, n do
c = mw.ustring.codepoint( adjust, i, i )
if c > 64 or c == 38 or c == 60 then -- '&' '<'
if flat( c ) then
if j then
if m then
if i == m then
-- single greek letter.
j = false
end
m = false
end
if j then
local nx = i - 1
local s = ""
for ix = nx, 1, -1 do
c = mw.ustring.sub( adjust, ix, ix )
if c == " " or c == "(" then
nx = nx - 1
s = c .. s
else
break -- for ix
end
end -- for ix
r = form( nx ) .. s
j = false
k = i
end
end
elseif not j then
j = i
if c >= 880 and c <= 1023 then
-- single greek letter?
m = i + 1
else
m = false
end
end
elseif m then
m = m + 1
end
end -- for i
if j and ( not m or m < n ) then
r = form( n )
else
r = r .. mw.ustring.sub( adjust, k )
end
end
return r
end -- Text.uprightNonlatin()
-- Export
local p = { }
function p.concatParams( frame )
local args
local template = frame.args.template
if type( template ) == "string" then
template = mw.text.trim( template )
template = ( template == "1" )
end
if template then
args = frame:getParent().args
else
args = frame.args
end
return Text.concatParams( args,
frame.args.separator,
frame.args.format )
end
function p.containsCJK( frame )
return Text.containsCJK( frame.args[ 1 ] or "" ) and "1" or ""
end
function p.listToText( frame )
local args
local template = frame.args.template
if type( template ) == "string" then
template = mw.text.trim( template )
template = ( template == "1" )
end
if template then
args = frame:getParent().args
else
args = frame.args
end
return Text.listToText( args, frame.args.format )
end
function p.sentenceTerminated( frame )
return Text.sentenceTerminated( frame.args[ 1 ] or "" ) and "1" or ""
end
function p.ucfirstAll( frame )
return Text.ucfirstAll( frame.args[ 1 ] or "" )
end
function p.uprightNonlatin( frame )
return Text.uprightNonlatin( frame.args[ 1 ] or "" )
end
function p.zip(frame)
local lists = {}
local seps = {}
local defaultsep = frame.args["sep"] or ""
local innersep = frame.args["isep"] or ""
local outersep = frame.args["osep"] or ""
-- Parameter parsen
for k, v in pairs(frame.args) do
local knum = tonumber(k)
if knum then lists[knum] = v else
if string.sub(k, 1, 3) == "sep" then
local sepnum = tonumber(string.sub(k, 4))
if sepnum then seps[sepnum] = v end
end
end
end
-- sofern keine expliziten Separatoren angegeben sind, den Standardseparator verwenden
for i = 1, math.max(#seps, #lists) do
if not seps[i] then seps[i] = defaultsep end
end
-- Listen splitten
local maxListLen = 0
for i = 1, #lists do
lists[i] = mw.text.split(lists[i], seps[i])
if #lists[i] > maxListLen then maxListLen = #lists[i] end
end
local result = ""
for i = 1, maxListLen do
if i ~= 1 then result = result .. outersep end
for j = 1, #lists do
if j ~= 1 then result = result .. innersep end
result = result .. (lists[j][i] or "")
end
end
return result
end
-- removes all diacritics from the input string, by decomposing the characters, removing the combining diacritical marks and recomposing the remaining characters
function p.removeDiacritics(frame)
local combiningDiacriticalMarks = "[" .. mw.ustring.char(0x0300) .. "-" .. mw.ustring.char(0x036F) .. mw.ustring.char(0x1AB0) .. "-" .. mw.ustring.char(0x1AFF) .. mw.ustring.char(0x1DC0) .. "-" .. mw.ustring.char(0x1DFF) .. "]"
return mw.ustring.toNFC(mw.ustring.gsub(mw.ustring.toNFD(frame.args[1] or ""), combiningDiacriticalMarks, ""))
end
p.Text = function ()
return Text
end -- p.Text
return p