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Template documentation

Template sandbox and testcases for TEMPLATE_NAME

Overview

This page provides a clean workflow to safely edit and validate TEMPLATE_NAME:

Sandbox: Template:TEMPLATE_NAME/sandbox — a working copy where you make changes.
Testcases: Template:TEMPLATE_NAME/testcases — inputs that exercise typical and edge cases.
Live: Template:TEMPLATE_NAME — the production version. Do not edit directly without review.

Use this page to:

Preview sandbox output against fixed testcases without touching the live template.
Compare actual vs expected output for each testcase.
Track recent changes and invite reviewers.

Quick links

Live template: Template:TEMPLATE_NAME
Sandbox: Template:TEMPLATE_NAME/sandbox
Testcases: Template:TEMPLATE_NAME/testcases
Documentation: Template:TEMPLATE_NAME/doc (optional)
Talk page: Template talk:TEMPLATE_NAME

How to test

1. Edit the sandbox at Template:TEMPLATE_NAME/sandbox. 2. Open this test page and click “Show preview” to render the sandbox with inputs below. 3. Verify each testcase: Does the “Actual output” match the “Expected output”? 4. If all pass, consider copying sandbox to live using an edit summary like:

  “Sync from /sandbox: passes all /testcases as of YYYY-MM-DD.”

Previewing tips

Use “Preview page with this template” gadget or the built-in preview.
Check parser output in different skins and mobile view.
Validate accessibility: headings order, link text, ARIA where applicable.
Internationalization: test with non-ASCII parameters and RTL where relevant.

Test harness

The following sections render the sandbox template against curated inputs. Each testcase shows:

Parameters passed to the template
Expected output (as plain wikitext target)
Actual output (rendered via sandbox transclusion)

Testcase A: Minimal invocation

Parameters: {{TEMPLATE_NAME}}

Expected output: [Minimal successful output with defaults: e.g., a neutral message or basic box]

Actual output (sandbox):

Character and language test sandbox

This sandbox is used to test how Template:TEMPLATE NAME behaves with special characters (such as Greek letters) and language-specific spans.

Basic examples

Greek letter (direct character): α
Greek letter (HTML entity): γ
German span example: A

Within the template

Below are example calls of the template using these characters as parameters.

{{TEMPLATE NAME | title = Greek test: α γ | summary = Demonstrating Greek letters: α, β, γ, and entities like γ. | attr1 = Direct Greek: α β γ δ | attr2 = Entity Greek: α β γ δ | attr3 = German label: A, English label: A }}

Preview the page to check if:

Greek characters (α, β, γ, δ) display correctly.
HTML entities (α, β, γ, δ) render as the expected symbols.
The A is kept as a German-language span and does not break the layout.

Notes

Use this sandbox to experiment with different scripts (Greek, Cyrillic, etc.).
Test right-to-left scripts by adding spans with lang="ar" or lang="he".
If the template trims or escapes some of these, adjust the template code accordingly.

Testcase B: Common parameters

Parameters: {{TEMPLATE_NAME | param1 = Alpha | param2 = Beta | flag = yes }}

Expected output: [Example: shows "Alpha" and "Beta" in designated slots; flag toggles enhanced styling]

Actual output (sandbox):

Character and language test sandbox

This sandbox is used to test how Template:TEMPLATE NAME behaves with special characters (such as Greek letters) and language-specific spans.

Basic examples

Greek letter (direct character): α
Greek letter (HTML entity): γ
German span example: A

Within the template

Below are example calls of the template using these characters as parameters.

{{TEMPLATE NAME | title = Greek test: α γ | summary = Demonstrating Greek letters: α, β, γ, and entities like γ. | attr1 = Direct Greek: α β γ δ | attr2 = Entity Greek: α β γ δ | attr3 = German label: A, English label: A }}

Preview the page to check if:

Greek characters (α, β, γ, δ) display correctly.
HTML entities (α, β, γ, δ) render as the expected symbols.
The A is kept as a German-language span and does not break the layout.

Notes

Use this sandbox to experiment with different scripts (Greek, Cyrillic, etc.).
Test right-to-left scripts by adding spans with lang="ar" or lang="he".
If the template trims or escapes some of these, adjust the template code accordingly.

Testcase C: Edge values and escaping

Parameters: {{TEMPLATE_NAME | param1 = [[Linked target|Visible text]] | param2 = {{subst:CURRENTTIMESTAMP}} | raw = <code>escaped</code> }}

Expected output: [Links render correctly; timestamp subst is literal in expected; raw shows escaped markup]

Actual output (sandbox):

Character and language test sandbox

This sandbox is used to test how Template:TEMPLATE NAME behaves with special characters (such as Greek letters) and language-specific spans.

Basic examples

Greek letter (direct character): α
Greek letter (HTML entity): γ
German span example: A

Within the template

Below are example calls of the template using these characters as parameters.

{{TEMPLATE NAME | title = Greek test: α γ | summary = Demonstrating Greek letters: α, β, γ, and entities like γ. | attr1 = Direct Greek: α β γ δ | attr2 = Entity Greek: α β γ δ | attr3 = German label: A, English label: A }}

Preview the page to check if:

Greek characters (α, β, γ, δ) display correctly.
HTML entities (α, β, γ, δ) render as the expected symbols.
The A is kept as a German-language span and does not break the layout.

Notes

Use this sandbox to experiment with different scripts (Greek, Cyrillic, etc.).
Test right-to-left scripts by adding spans with lang="ar" or lang="he".
If the template trims or escapes some of these, adjust the template code accordingly.

Testcase D: Internationalization (i18n)

Parameters: {{TEMPLATE_NAME | lang = ja | text = こんにちは世界 }}

Expected output: [Text displays correctly for non-ASCII; applies lang attribute or rtl/ltr where applicable]

Actual output (sandbox):

Character and language test sandbox

This sandbox is used to test how Template:TEMPLATE NAME behaves with special characters (such as Greek letters) and language-specific spans.

Basic examples

Greek letter (direct character): α
Greek letter (HTML entity): γ
German span example: A

Within the template

Below are example calls of the template using these characters as parameters.

{{TEMPLATE NAME | title = Greek test: α γ | summary = Demonstrating Greek letters: α, β, γ, and entities like γ. | attr1 = Direct Greek: α β γ δ | attr2 = Entity Greek: α β γ δ | attr3 = German label: A, English label: A }}

Preview the page to check if:

Greek characters (α, β, γ, δ) display correctly.
HTML entities (α, β, γ, δ) render as the expected symbols.
The A is kept as a German-language span and does not break the layout.

Notes

Use this sandbox to experiment with different scripts (Greek, Cyrillic, etc.).
Test right-to-left scripts by adding spans with lang="ar" or lang="he".
If the template trims or escapes some of these, adjust the template code accordingly.

Testcase E: Error handling

Parameters: {{TEMPLATE_NAME | param1 = | required =  }}

Expected output: [Shows a gentle error or maintenance category; does not break page layout]

Actual output (sandbox):

Character and language test sandbox

This sandbox is used to test how Template:TEMPLATE NAME behaves with special characters (such as Greek letters) and language-specific spans.

Basic examples

Greek letter (direct character): α
Greek letter (HTML entity): γ
German span example: A

Within the template

Below are example calls of the template using these characters as parameters.

{{TEMPLATE NAME | title = Greek test: α γ | summary = Demonstrating Greek letters: α, β, γ, and entities like γ. | attr1 = Direct Greek: α β γ δ | attr2 = Entity Greek: α β γ δ | attr3 = German label: A, English label: A }}

Preview the page to check if:

Greek characters (α, β, γ, δ) display correctly.
HTML entities (α, β, γ, δ) render as the expected symbols.
The A is kept as a German-language span and does not break the layout.

Notes

Use this sandbox to experiment with different scripts (Greek, Cyrillic, etc.).
Test right-to-left scripts by adding spans with lang="ar" or lang="he".
If the template trims or escapes some of these, adjust the template code accordingly.

Maintenance

Add new testcases when introducing features or fixing bugs.
Keep “Expected output” updated; include rationale in edit summaries.
When deprecating parameters, add tests demonstrating legacy behavior and warnings.

Copy-paste skeletons

Below are ready-to-use skeletons for the sandbox and testcases subpages.

Skeleton: Template:TEMPLATE_NAME/sandbox

{{#if:{{{required|}}} |  <div class="tmpl"> {{{param1|}}} · {{{param2|}}} {{#if:{{{flag|}}}|✓|}} {{#if:{{{raw|}}}|{{{raw}}}|}} </div> |  TEMPLATE_NAME: missing required parameter [[Category:Pages with TEMPLATE_NAME errors]] }}

Skeleton: Template:TEMPLATE_NAME/testcases

; Minimal : {{TEMPLATE_NAME/sandbox}} ; Common params : {{TEMPLATE_NAME/sandbox | param1 = Alpha | param2 = Beta | flag = yes }} ; Edge and escaping : {{TEMPLATE_NAME/sandbox | param1 = [[Linked target|Visible text]] | param2 = 20250101T000000Z | raw = <code>escaped</code> }} ; I18n : {{TEMPLATE_NAME/sandbox | lang = ja | text = こんにちは世界 }} ; Error handling : {{TEMPLATE_NAME/sandbox | required = }}

Review checklist

Output is stable across re-parses; no expensive parser functions without need.
No unexpected categorization in mainspace; errors go to maintenance cats.
Template is documented at Template:TEMPLATE_NAME/doc with parameters, examples, and tracking.
Style is minimal; avoid inline CSS unless necessary; consider using existing module or template styles.

This box: view • talk • edit

Template:Terminate sentence ensures a sentence ends with a specified terminator (default: a period). It avoids adding duplicate terminators and can optionally trim trailing spaces. It attempts to ignore trailing closing quotes or brackets when deciding whether a terminator is already present.

Usage

Basic:

{{Terminate sentence|This is a sentence}}
→ This is a sentence.

Named parameters:

{{Terminate sentence
 |text=He said "Hello"
 |term=.
}}
→ He said "Hello".

Custom terminator:

{{Terminate sentence|text=Warning|term=!}}
→ Warning!

Avoid duplicate terminator:

{{Terminate sentence|text=Already done.|term=.}}
→ Already done.

Trim trailing spaces:

{{Terminate sentence|text=Ends with space   |trim=yes}}
→ Ends with space.

Skip processing:

{{Terminate sentence|text=No changes here|skip=yes}}
→ No changes here

Append a note:

{{Terminate sentence|text=Complete|note=(source: 2025)}}
→ Complete. (source: 2025)

Parameters

1 / text: The input text to terminate.
term: The terminator to enforce at the end. Default is .. Common choices: !, ?.
trim: If yes/true/1, strips trailing spaces before checking.
skip: If yes/true/1, returns text unchanged (still appends note if provided).
allowdup: If yes/true/1, allows duplicate terminators (e.g., ellipses). Default disallows duplicates.
note: Optional text appended after a space, unaffected by termination logic.

Behavior details

Terminator detection attempts to ignore trailing closing quotes/brackets (", ', ”, ), ], }).
If the last visible character equals term, no extra terminator is added unless allowdup=yes.
If trim=yes, trailing spaces are removed before detection.
If note is present, it is added with a leading space after the final text.

Examples

Quotes:

{{Terminate sentence|text=He whispered "hush"|term=.}}

 → He whispered "hush".

Parentheses:

{{Terminate sentence|text=Complete (verified)|term=.}}

 → Complete (verified).

Exclamation:

{{Terminate sentence|text=Alert|term=!}}

 → Alert!

Ellipsis (allow duplicates):

{{Terminate sentence|text=Wait...|term=.|allowdup=yes}}

 → Wait....

Best practices

Prefer using term that matches the sentence intent (., !, ?).
For complex punctuation, consider the Lua-powered variant below.
Document usage in your template’s /doc page where you incorporate this helper.

Lua-powered variant (optional)

For more robust detection (including multilingual quotes and punctuation), create Module:TerminateUtil with:

-- Module:TerminateUtil
local M = {}

local closing = {
  [")"] = true, ["]"] = true, ["}"] = true,
  ['"'] = true, ["'"] = true, ["”"] = true, ["’"] = true, ["»"] = true, ["›"] = true
}

local function trimRight(s)
  return (s:gsub("%s+$",""))
end

function M.lastVisibleChar(args)
  local s = args.s or ""
  s = trimRight(s)
  local i = #s
  while i > 0 do
    local c = s:sub(i,i)
    if closing[c] then
      i = i - 1
    else
      return c
    end
  end
  return ""
end

return M

Then update the template to call:

{{#invoke:TerminateUtil|lastVisibleChar|s=text}}

This improves detection for closing quotes and brackets.

Explanation

{{tlg}} (template link, general) is a general template for inserting a template link. It can be used to replace or implement any of the more specific {{tl*}} templates, e.g. {{tl}}, {{tlx}} or {{tlb}}. Parameters are:

bold=yes: Boldface the text, like for {{tlb}} and {{tlxb}}
italic=yes: Italicizes the parameters, like for {{tlxi}}
tt=yes: Use a monospaced font, like for {{tlx}} and {{tlxb}}
code=yes: Use the <code>...</code> HTML attribute (usually a monospaced font), like for {{tlc}}
nolink=yes: Don't insert a template link, like for {{tlf}}, {{tld}}, and {{tlc}}
anypage=yes: Allow linking to arbitrary page (not just template), as with {{tlu}}
braceinside=yes: Put braces inside the link, like for {{tn}}
subst=yes: Add a subst: prefix, like for {{tls}}
alttext=FOO: Specify alternative surface text for a link, like for {{tla}}

Examples

Code	Result	Remark
`{{Tlg\|Abc}}`	{{Abc}}
`{{Tlg\|ABC}}`	{{ABC}}
`{{Tlg\|AbC}}`	{{AbC}}
`{{Tlg\|x0}}`	{{x0}}
`{{Tlg\|x0\|bold=yes}}`	{{x0}}
`{{Tlg\|x1\|one\|italic=yes}}`	{{x1\|one}}
`{{Tlg\|x0\|code=yes}}`	`{{x0}}`
`{{Tlg\|x0\|tt=yes}}`	`{{x0}}`
`{{Tlg\|x0\|nolink=yes}}`	{{x0}}
`{{Tlg\|x0\|subst=yes}}`	{{subst:x0}}
`{{Tlg\|x0\|braceinside=yes}}`	{{x0}}
`{{Tlg\|x0\|alttext=Link to x0 template}}`	{{Link to x0 template}}
`{{Tlg\|x0\|anypage=yes}}`	{{x0}}	Now the expression links to x0 (the spaceship, genetic disease, etc.) rather than Template:x0. Mostly useful for templates in user space.
`{{Tlg\|x0\|bold=yes\|tt=yes\|braceinside=yes}}`	`{{x0}}`	No reason you can't combine multiple parameter settings.
`{{Tlg\|x1\|one}}`	{{x1\|one}}
`{{Tlg\|x2\|one\|two}}`	{{x2\|one\|two}}
`{{Tlg\|x2\|bold=yes\|tt=yes\|one\|two}}`	`{{x2\|one\|two}}`	Can combine named and anonymous parameters ...
`{{Tlg\|x2\|one\|two\|bold=yes\|tt=yes}}`	`{{x2\|one\|two}}`	... in any order …
`{{Tlg\|x2\|one\|tt=yes\|two\|bold=yes\|three}}`	`{{x2\|one\|two\|three}}`	... even intermixed ...
`{{Tlg\|x2\|one\|tt=yes\|two\|bold=yes\|three\|italic=yes}}`	`{{x2\|one\|two\|three}}`	... with many different configurations.
`{{Tlg\|x3\|1\|2\|3\|4\|5\|6\|7\|8\|9\|10}}`	{{x3\|1\|2\|3\|4\|5\|6\|7\|8\|9\|10}}
`{{Tlg\|x4\|1\|2\|3\|4\|5\|6\|7\|8\|9\|10\|11}}`	{{x4\|1\|2\|3\|4\|5\|6\|7\|8\|9\|10\|...}}	up to 10 parameters, then ...
`{{Tlg\|x5\|1\|2\|3\|4\|5\|6\|7\|8\|9\|10\|11}}`	{{x5\|1\|2\|3\|4\|5\|6\|7\|8\|9\|10\|11}}	`\|` for more
`{{Tlg\|convert\|<nowiki>14\|m\|ftin\|abbr=out\|sp=us</nowiki>}}`		unlimited parameters as one nowiki string
`{{Tlg}}`	{{Tlg/doc}}	with no arguments, the current page name is substituted
`{{Tlg\|x1\|x=u}}`	{{x1}}	= won't work
`{{Tlg\|x1\|x=u}}`	{{x1\|x=u}}	`=` is okay
`{{Tlg\|x1\|x{{=}}u}}`	{{x1\|x=u}}	`{{=}}` is okay
`{{Tlg\|x1\|<nowiki>x=u</nowiki>}}`	{{x1\|x=u}}	sticky nowiki is okay
`{{Tlg\|x2\| \|two}}`	{{x2\|two}}	empty won't work
`{{Tlg\|x2\| \|two}}`	{{x2\| \|two}}	` ` is okay
`{{Tlg\|x2\| \|two}}`	{{x2\| \|two}}	` ` is okay
`{{Tlg\|x2\| \| two}}`	{{x2\| \| two}}	`\|` is okay
`{{Tlg\|x2\| {{!}} two}}`	{{x2\| \| two}}	{{!}} is dubious
`{{Tlg\|x2\|2=\|3=two}}`	{{x2\|two}}	empty really doesn't work
`{{Tlg\|x2\|2=one\|two}}`	{{x2\|two}}	two clobbers 2=one
`{{Tlg\|x2\|3=two\|2=one}}`	{{x2\|one\|two}}	right to left okay

Code	Result	Remark
`{{Tlg\|Abc}}`	{{Abc}}
`{{Tlg\|ABC}}`	{{ABC}}
`{{Tlg\|AbC}}`	{{AbC}}
`{{Tlg\|x0}}`	{{x0}}
`{{Tlg\|x0\|bold=yes}}`	{{x0}}
`{{Tlg\|x1\|one\|italic=yes}}`	{{x1\|one}}
`{{Tlg\|x0\|code=yes}}`	`{{x0}}`
`{{Tlg\|x0\|tt=yes}}`	`{{x0}}`
`{{Tlg\|x0\|nolink=yes}}`	{{x0}}
`{{Tlg\|x0\|subst=yes}}`	{{subst:x0}}
`{{Tlg\|x0\|braceinside=yes}}`	{{x0}}
`{{Tlg\|x0\|alttext=Link to x0 template}}`	{{Link to x0 template}}
`{{Tlg\|x0\|anypage=yes}}`	{{x0}}	Now the expression links to x0 (the spaceship, genetic disease, etc.) rather than Template:x0. Mostly useful for templates in user space.
`{{Tlg\|x0\|bold=yes\|tt=yes\|braceinside=yes}}`	`{{x0}}`	No reason you can't combine multiple parameter settings.
`{{Tlg\|x1\|one}}`	{{x1\|one}}
`{{Tlg\|x2\|one\|two}}`	{{x2\|one\|two}}
`{{Tlg\|x2\|bold=yes\|tt=yes\|one\|two}}`	`{{x2\|one\|two}}`	Can combine named and anonymous parameters ...
`{{Tlg\|x2\|one\|two\|bold=yes\|tt=yes}}`	`{{x2\|one\|two}}`	... in any order …
`{{Tlg\|x2\|one\|tt=yes\|two\|bold=yes\|three}}`	`{{x2\|one\|two\|three}}`	... even intermixed ...
`{{Tlg\|x2\|one\|tt=yes\|two\|bold=yes\|three\|italic=yes}}`	`{{x2\|one\|two\|three}}`	... with many different configurations.
`{{Tlg\|x3\|1\|2\|3\|4\|5\|6\|7\|8\|9\|10}}`	{{x3\|1\|2\|3\|4\|5\|6\|7\|8\|9\|10}}
`{{Tlg\|x4\|1\|2\|3\|4\|5\|6\|7\|8\|9\|10\|11}}`	{{x4\|1\|2\|3\|4\|5\|6\|7\|8\|9\|10\|...}}	up to 10 parameters, then ...
`{{Tlg\|x5\|1\|2\|3\|4\|5\|6\|7\|8\|9\|10\|11}}`	{{x5\|1\|2\|3\|4\|5\|6\|7\|8\|9\|10\|11}}	`\|` for more
`{{Tlg\|convert\|<nowiki>14\|m\|ftin\|abbr=out\|sp=us</nowiki>}}`		unlimited parameters as one nowiki string
`{{Tlg}}`	{{Tlg/doc}}	with no arguments, the current page name is substituted
`{{Tlg\|x1\|x=u}}`	{{x1}}	= won't work
`{{Tlg\|x1\|x=u}}`	{{x1\|x=u}}	`=` is okay
`{{Tlg\|x1\|x{{=}}u}}`	{{x1\|x=u}}	`{{=}}` is okay
`{{Tlg\|x1\|<nowiki>x=u</nowiki>}}`	{{x1\|x=u}}	sticky nowiki is okay
`{{Tlg\|x2\| \|two}}`	{{x2\|two}}	empty won't work
`{{Tlg\|x2\| \|two}}`	{{x2\| \|two}}	` ` is okay
`{{Tlg\|x2\| \|two}}`	{{x2\| \|two}}	` ` is okay
`{{Tlg\|x2\| \| two}}`	{{x2\| \| two}}	`\|` is okay
`{{Tlg\|x2\| {{!}} two}}`	{{x2\| \| two}}	{{!}} is dubious
`{{Tlg\|x2\|2=\|3=two}}`	{{x2\|two}}	empty really doesn't work
`{{Tlg\|x2\|2=one\|two}}`	{{x2\|two}}	two clobbers 2=one
`{{Tlg\|x2\|3=two\|2=one}}`	{{x2\|one\|two}}	right to left okay

Template documentation

Template sandbox and testcases for TEMPLATE_NAME

Overview

Quick links

How to test

Previewing tips

Test harness

Testcase A: Minimal invocation

Basic examples

Within the template

Notes

Testcase B: Common parameters

Basic examples

Within the template

Notes

Testcase C: Edge values and escaping

Basic examples

Within the template

Notes

Testcase D: Internationalization (i18n)

Basic examples

Within the template

Notes

Testcase E: Error handling

Basic examples

Within the template

Notes

Maintenance

Categories

Copy-paste skeletons

Skeleton: Template:TEMPLATE_NAME/sandbox

Skeleton: Template:TEMPLATE_NAME/testcases

Review checklist

Usage

Parameters

Behavior details

Examples

Best practices

Lua-powered variant (optional)

See also

Explanation

Examples