Module:MatrixFields: Difference between revisions

Latest revision as of 04:43, 21 December 2024

Documentation for this module may be created at Module:MatrixFields/doc

local exports = {}

local function trim(str)
	return str:gsub("^%s*", ""):gsub("%s*$", "")
end

local anchor_template = [[<span id="field_$name"></span>]]
local name_template = [[<code>$name</code>]]

local template = trim [=[
=== Column fields $colanchors ===

Column fields in the form <code>c''N''</code> ($colnames) read the values in the specified column as a {{type|Vector$T}}.
The field produces the same result as an equivalent call to [[#getColumn|<code>getColumn(n)</code>]].

Column fields are also available by indexing by the column number alone (i.e. <code>mat[1]</code>.)

=== Row fields $rowanchors ===

Row fields in the form <code>r''N''</code> ($rownames) read the values in the specified row as a {{type|Vector$T}}.
The field produces the same result as an equivalent call to [[#getRow|<code>getRow(n)</code>]].

=== Value fields $valueanchors ===

Value fields in the form <code>v''RC''</code> ($valuenames) read the value (a {{type|number}}) at the specified row and column.
The row number comes first, then the column number.
]=]

function exports.run(frame)
	local input_args = frame.args
	local object_size = input_args.size or error "No size provided (size=)"
	object_size = tonumber(object_size) or error "Size provided was not a number"
	
	local vars = {
		T = tostring(object_size),
		colanchors = {},
		colnames = {},
		rowanchors = {},
		rownames = {},
		valueanchors = {},
		valuenames = {}
	}
	for i = 1, object_size do
		local fn = "c" .. i
		vars.colanchors[i] = anchor_template:gsub("$name", fn)
		vars.colnames[i] = name_template:gsub("$name", fn)
	end
	for i = 1, object_size do
		local fn = "r" .. i
		vars.rowanchors[i] = anchor_template:gsub("$name", fn)
		vars.rownames[i] = name_template:gsub("$name", fn)
	end
	local i = 0
	for x = 1, object_size do
		for y = 1, object_size do
			local fn = "v" .. y .. x
			i = i + 1
			vars.valueanchors[i] = anchor_template:gsub("$name", fn)
			vars.valuenames[i] = name_template:gsub("$name", fn)
		end
	end
	
	local result = template
	for k, v in pairs(vars) do
		if k:find("anchors$") then v = table.concat(v, "") end
		if k:find("names$") then v = table.concat(v, ", ") end
		result = result:gsub("$"..k, v)
	end
	return frame:preprocess(result)
end

return exports

@@ Line 1: / Line 1: @@
 local exports = {}
-local ordinals = {
-	[1] = "first",
-	[2] = "second",
-	[3] = "third",
-	[4] = "fourth"
-}
 local function trim(str)
@@ Line 12: / Line 5: @@
 end
-local col_template = trim [=[
+local anchor_template = [[<span id="field_$name"></span>]]
-=== <code>c$n</code> <span id="field_c$n"></span> ===
+local name_template = [[<code>$name</code>]]
-{{aliases|$n}}
-The $ord column as a {{type|Vector$T}}. Equivalent to calling [[#getColumn|<code>getColumn($n)</code>]].
+local template = trim [=[
-]=]
+=== Column fields $colanchors ===
-local row_template = trim [=[
-=== <code>r$n</code> <span id="field_r$n"></span> ===
+Column fields in the form <code>c''N''</code> ($colnames) read the values in the specified column as a {{type|Vector$T}}.
+The field produces the same result as an equivalent call to [[#getColumn|<code>getColumn(n)</code>]].
+Column fields are also available by indexing by the column number alone (i.e. <code>mat[1]</code>.)
+=== Row fields $rowanchors ===
+Row fields in the form <code>r''N''</code> ($rownames) read the values in the specified row as a {{type|Vector$T}}.
+The field produces the same result as an equivalent call to [[#getRow|<code>getRow(n)</code>]].
-The $ord row as a {{type|Vector$T}}. Equivalent to calling [[#getRow|<code>getRow($n)</code>]].
+=== Value fields $valueanchors ===
-]=]
-local item_template = trim [=[
-=== <code>v$y$x</code> <span id="field_v$y$x"></span> ===
-The value in row $y and column $x.
+Value fields in the form <code>v''RC''</code> ($valuenames) read the value (a {{type|number}}) at the specified row and column.
+The row number comes first, then the column number.
 ]=]
@@ Line 34: / Line 32: @@
 	object_size = tonumber(object_size) or error "Size provided was not a number"
-	local col_t2 = col_template:gsub("$T", tostring(object_size))
+	local vars = {
-	local row_t2 = row_template:gsub("$T", tostring(object_size))
+		T = tostring(object_size),
+		colanchors = {},
-	local parts = {}
+		colnames = {},
+		rowanchors = {},
+		rownames = {},
+		valueanchors = {},
+		valuenames = {}
+	}
 	for i = 1, object_size do
-		parts[#parts + 1] = col_t2:gsub("$n", tostring(i))
+		local fn = "c" .. i
+		vars.colanchors[i] = anchor_template:gsub("$name", fn)
+		vars.colnames[i] = name_template:gsub("$name", fn)
 	end
 	for i = 1, object_size do
-		parts[#parts + 1] = row_t2:gsub("$n", tostring(i))
+		local fn = "r" .. i
+		vars.rowanchors[i] = anchor_template:gsub("$name", fn)
+		vars.rownames[i] = name_template:gsub("$name", fn)
 	end
+	local i = 0
 	for x = 1, object_size do
 		for y = 1, object_size do
-			parts[#parts + 1] = item_template:gsub("$y", tostring(y)):gsub("$x", tostring(x))
+			local fn = "v" .. y .. x
+			i = i + 1
+			vars.valueanchors[i] = anchor_template:gsub("$name", fn)
+			vars.valuenames[i] = name_template:gsub("$name", fn)
 		end
 	end
-	local packaged = table.concat(parts, "\n\n")
+	local result = template
-	return frame:preprocess(packaged)
+	for k, v in pairs(vars) do
+		if k:find("anchors$") then v = table.concat(v, "") end
+		if k:find("names$") then v = table.concat(v, ", ") end
+		result = result:gsub("$"..k, v)
+	end
+	return frame:preprocess(result)
 end
 return exports