Module:GHS phrases

• Implements templates {{GHS phrases}} (talk) (tests), {{H-phrases}} and {{P-phrases}}.

List all phrases

List of H-phrases

GHS H-phrases (112)
Code	Phrase
H200	Unstable explosive
H201	Explosive: mass explosion hazard
H202	Explosive: severe projection hazard
H203	Explosive: fire, blast or projection hazard
H204	Fire or projection hazard
H205	May mass explode in fire
H206	Fire, blast or projection hazard: increased risk of explosion if desensitizing agent is reduced
H207	Fire or projection hazard; increased risk of explosion if desensitizing agent is reduced
H208	Fire hazard; increased risk of explosion if desensitizing agent is reduced
H209	Explosive
H210	Very explosive
H211	May be sensitive
H220	Extremely flammable gas
H221	Flammable gas
H222	Extremely flammable material
H223	Flammable material
H224	Extremely flammable liquid and vapour
H225	Highly flammable liquid and vapour
H226	Flammable liquid and vapour
H227	Combustible liquid
H228	Flammable solid
H229	Pressurized container: may burst if heated
H230	May react explosively even in the absence of air
H231	May react explosively even in the absence of air at elevated pressure and/or temperature
H232	May ignite spontaneously if exposed to air
H240	Heating may cause an explosion
H241	Heating may cause a fire or explosion
H242	Heating may cause a fire
H250	Catches fire spontaneously if exposed to air
H251	Self-heating: may catch fire
H252	Self-heating in large quantities: may catch fire
H260	In contact with water releases flammable gases which may ignite spontaneously
H261	In contact with water releases flammable gas
H270	May cause or intensify fire: oxidizer
H271	May cause fire or explosion: strong oxidizer
H272	May intensify fire: oxidizer
H280	Contains gas under pressure: may explode if heated
H281	Contains refrigerated gas: may cause cryogenic burns or injury
H282	Extremely flammable chemical under pressure: May explode if heated
H283	Flammable chemical under pressure: May explode if heated
H284	Chemical under pressure: May explode if heated
H290	May be corrosive to metals
H300	Fatal if swallowed
H300+H310	Fatal if swallowed or in contact with skin
H300+H310+H330	Fatal if swallowed, in contact with skin or if inhaled
H300+H330	Fatal if swallowed or if inhaled
H301	Toxic if swallowed
H301+H311	Toxic if swallowed or in contact with skin
H301+H311+H331	Toxic if swallowed, in contact with skin or if inhaled
H301+H331	Toxic if swallowed or if inhaled
H302	Harmful if swallowed
H302+H312	Harmful if swallowed or in contact with skin
H302+H312+H332	Harmful if swallowed, in contact with skin or if inhaled
H302+H332	Harmful if swallowed or inhaled
H303	May be harmful if swallowed
H303+H313	May be harmful if swallowed or in contact with skin
H303+H313+H333	May be harmful if swallowed, in contact with skin or if inhaled
H303+H333	May be harmful if swallowed or if inhaled
H304	May be fatal if swallowed and enters airways
H305	May be harmful if swallowed and enters airways
H310	Fatal in contact with skin
H310+H330	Fatal in contact with skin or if inhaled
H311	Toxic in contact with skin
H311+H331	Toxic in contact with skin or if inhaled
H312	Harmful in contact with skin
H312+H332	Harmful in contact with skin or if inhaled
H313	May be harmful in contact with skin
H313+H333	May be harmful in contact with skin or if inhaled
H314	Causes severe skin burns and eye damage
H315	Causes skin irritation
H315+H320	Causes skin and eye irritation
H316	Causes mild skin irritation
H317	May cause an allergic skin reaction
H318	Causes serious eye damage
H319	Causes serious eye irritation
H320	Causes eye irritation
H330	Fatal if inhaled
H331	Toxic if inhaled
H332	Harmful if inhaled
H333	May be harmful if inhaled
H334	May cause allergy or asthma symptoms of breathing difficulties if inhaled
H335	May cause respiratory irritation
H336	May cause drowsiness or dizziness
H340	May cause genetic defects
H341	Suspected of causing genetic defects
H350	May cause cancer
H350i	May cause cancer by inhalation
H351	Suspected of causing cancer
H360	May damage fertility or the unborn child
H360D	May damage the unborn child
H360Df	May damage the unborn child. Suspected of damaging fertility.
H360F	May damage fertility
H360FD	May damage fertility. May damage the unborn child.
H360Fd	May damage fertility. Suspected of damaging the unborn child.
H361	Suspected of damaging fertility or the unborn child
H361d	Suspected of damaging the unborn child
H361f	Suspected of damaging fertility
H361fd	Suspected of damaging fertility. Suspected of damaging the unborn child.
H362	May cause harm to breast-fed children
H370	Causes damage to organs
H371	May cause damage to organs
H372	Causes damage to organs through prolonged or repeated exposure
H373	May cause damage to organs through prolonged or repeated exposure
H400	Very toxic to aquatic life
H401	Toxic to aquatic life
H402	Harmful to aquatic life
H410	Very toxic to aquatic life with long lasting effects
H411	Toxic to aquatic life with long lasting effects
H412	Harmful to aquatic life with long lasting effects
H413	May cause long lasting harmful effects to aquatic life
H420	Harms public health and the environment by destroying ozone in the upper atmosphere
H441	Very toxic to terrestrial invertebrates

List of P-phrases

GHS P-phrases (183)
Code	Phrase
P103	Read label before use.
P201	Obtain special instructions before use.
P202	Do not handle until all safety precautions have been read and understood.
P203	Obtain, read and follow all safety instructions before use.
P210	Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P211	Do not spray on an open flame or other ignition source.
P212	Avoid heating under confinement or reduction of the desensitized agent.
P220	Keep/Store away from clothing/.../combustible materials.
P221	Take any precaution to avoid mixing with combustibles.
P222	Do not allow contact with air.
P223	Do not allow contact with water.
P230	Keep wetted with ...
P231	Handle and store contents under inert gas/...
P231+P232	Handle and store contents under inert gas. Protect from moisture
P232	Protect from moisture.
P233	Keep container tightly closed.
P234	Keep only in original container/packaging.
P235	Keep cool.
P235+P410	Keep cool. Protect from sunlight.
P236	Keep only in original packaging; division .. in the transport configuraion.
P240	Ground and bond container and receiving equipment.
P241	Use explosion-proof electrical/ventilating/light/.../equipment.
P242	Use only non-sparking tools.
P243	Take precautionary measures to prevent static discharges.
P244	Keep valves and fittings free from grease and oil
P250	Do not subject to grinding/shock/.../friction.
P251	Pressurized container – Do not pierce or burn, even after use.
P260	Do not breathe dust/fume/gas/mist/vapours/spray.
P261	Avoid breathing dust/fume/gas/mist/vapours/spray.
P262	Do not get in eyes, on skin, or on clothing.
P263	Avoid contact during pregnancy and while nursing.
P264	Wash ... thoroughly after handling.
P264+P265	Wash ... thoroughly after handling. Do not touch eyes.
P265	Do not touch eyes.
P270	Do not eat, drink or smoke when using this product.
P271	Use only outdoors or in a well-ventilated area.
P272	Contaminated work clothing should not be allowed out of the workplace.
P273	Avoid release to the environment.
P280	Wear protective gloves/protective clothing/eye protection/face protection.
P281	Use personal protective equipment as required.
P282	Wear cold insulating gloves and either face shield or eye protection.
P283	Wear fire resistant or flame retardant clothing.
P284	Wear respiratory protection.
P285	In case of inadequate ventilation wear respiratory protection.
P301	IF SWALLOWED:
P301+P310	IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P301+P310+P330	IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. Rinse mouth.
P301+P312	IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell.
P301+P312+P330	IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell. Rinse mouth.
P301+P316	IF SWALLOWED: Get immediate emergency medical help.
P301+P317	IF SWALLOWED: IF SWALLOWED: Get medical help.
P301+P330+P331	IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P302	IF ON SKIN:
P302+P312	IF ON SKIN: Call a POISON CENTER or doctor/physician if you feel unwell.
P302+P317	IF ON SKIN: Get medical help.
P302+P334	IF ON SKIN: Immerse in cool water or wrap in wet bandages.
P302+P335+P334	IF ON SKIN: Brush off loose particles from skin. Immerse in cool water or wrap in wet bandages.
P302+P350	IF ON SKIN: Gently wash with soap and water.
P302+P352	IF ON SKIN: Wash with soap and water.
P302+P352+P312	IF ON SKIN: Wash with soap and water. Call a POISON CENTER or doctor/physician if you feel unwell.
P302+P353	IF ON SKIN: Rinse skin with water [or shower].
P302+P361+P354	IF ON SKIN: Take off Immediately all contaminated clothing. Immediately rinse with water for several minutes.
P303	IF ON SKIN (or hair):
P303+P361+P353	IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water [or shower].
P303+P361+P353+P315	IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water [or shower]. Get immediate medical advice/attention.
P304	IF INHALED:
P304+P312	IF INHALED: Call a POISON CENTER or doctor/physician if you feel unwell.
P304+P317	IF INHALED: Get medical help.
P304+P340	IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P304+P340+P310	IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing. Immediately call a POISON CENTER or doctor/physician.
P304+P340+P311	IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing. Call a POISON CENTER or doctor/physician.
P304+P340+P312	IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing. Call a POISON CENTER or doctor/physician if you feel unwell.
P304+P340+P315	IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing. Get immediate medical advice/attention.
P304+P341	IF INHALED: If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing.
P305	IF IN EYES:
P305+P351+P338+P310	IF IN EYES: Rinse continuously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing. Immediately call a POISON CENTER or doctor/physician.
P305+P351+P338+P315	IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing. Get immediate medical advice/attention.
P305+P354+P338	IF IN EYES: Immediately rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing.
P306	IF ON CLOTHING:
P306+P360	IF ON CLOTHING: Rinse immediately contaminated clothing and skin with plenty of water before removing clothes.
P307	IF exposed:
P307+P311	IF exposed: Call a POISON CENTER or doctor/physician.
P308	IF exposed or concerned:
P308+P310	IF exposed or concerned: Immediately call a POISON CENTER or doctor/physician.
P308+P311	IF exposed or concerned: Call a POISON CENTER or doctor/physician.
P308+P313	IF exposed or concerned: Get medical advice/attention.
P308+P316	IF exposed or concerned: Get emergency medical help immediately.
P308+P360	IF ON CLOTHING: Rinse Immediately contaminated CLOTHING and SKIN with plenty of water before removing clothes.
P309	IF exposed or you feel unwell:
P309+P311	IF exposed or you feel unwell: Call a POISON CENTER or doctor/physician.
P310	Immediately call a POISON CENTER or doctor/physician.
P311	Call a POISON CENTER or doctor/physician.
P312	Call a POISON CENTER or doctor/physician if you feel unwell.
P313	Get medical advice/attention.
P314	Get Medical advice/attention if you feel unwell.
P315	Get immediate medical advice/attention.
P316	Get immediate emergency medical help.
P317	Get emergency medical help.
P318	If exposed or concerned, get medical advice.
P319	Get medical help if you feel unwell.
P320	Specific treatment is urgent (see ... on this label).
P321	Specific treatment (see ... on this label).
P322	Specific measures (see ... on this label).
P330	Rinse mouth.
P331	Do NOT induce vomiting.
P332	If skin irritation occurs:
P332+P313	If skin irritation occurs: Get medical advice/attention.
P332+P317	If skin irritation occurs: Get medical help.
P333	If skin irritation or a rash occurs:
P333+P313	If skin irritation or a rash occurs: Get medical advice/attention.
P333+P317	If skin irritation or rash occurs: Get medical help.
P334	Immerse in cool water [or wrap in wet bandages].
P335	Brush off loose particles from skin.
P335+P334	Brush off loose particles from skin. Immerse in cool water/wrap in wet bandages.
P336	Thaw frosted parts with lukewarm water. Do not rub affected areas.
P336+P315	Thaw frosted parts with lukewarm water. Do not rub affected area. Get immediate medical advice/attention.
P336+P317	Immediately thaw frosted parts with lukewarm water. Do not rub affected area. Get medical help.
P337	If eye irritation persists:
P337+P313	If eye irritation persists: Get medical advice/attention.
P337+P317	If eye irritation persists: Get medical help.
P338	Remove contact lenses if present and easy to do. Continue rinsing.
P340	Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P341	If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing.
P342	If experiencing respiratory symptoms:
P342+P311	If experiencing respiratory symptoms: Call a POISON CENTER or doctor/physician.
P342+P316	If experiencing respiratory symptoms: Get emergence medical help immediately.
P350	Gently wash with soap and water.
P351	Rinse cautiously with water for several minutes.
P352	Wash with plenty of water.
P353	Rinse skin with water [or shower].
P354	Immediately rinse with water for several minutes.
P360	Rinse immediately contaminated clothing and skin with plenty of water before removing clothes.
P361	Remove/Take off immediately all contaminated clothing.
P361+P364	Take off immediately all contaminated clothing and wash it before reuse.
P362	Take off contaminated clothing.
P362+P364	Take off contaminated clothing and wash it before reuse.
P363	Wash contaminated clothing before reuse.
P364	And wash it before reuse.
P370	In case of fire:
P370+P372+P380+P373	In case of fire: Explosion risk. Evacuate area. DO NOT fight fire when fire reaches explosives.
P370+P376	In case of fire: Stop leak if safe to do so.
P370+P378	In case of fire: Use ... to extinguish.
P370+P380	In case of fire: Evacuate area.
P370+P380+P375	In case of fire: Evacuate area. Fight fire remotely due to the risk of explosion.
P370+P380+P375+P378	In case of fire: Evacuate area. Fight fire remotely due to the risk of explosion. Use ... to extinguish.
P371	In case of major fire and large quantities:
P371+P380+P375	In case of major fire and large quantities: Evacuate area. Fight fire remotely due to the risk of explosion.
P372	Explosion risk.
P373	DO NOT fight fire when fire reaches explosives.
P374	Fight fire with normal precautions from a reasonable distance.
P375	Fight fire remotely due to the risk of explosion.
P376	Stop leak if safe to do so.
P377	Leaking gas fire – do not extinguish unless leak can be stopped safely.
P378	Use ... to extinguish.
P380	Evacuate area.
P381	In case of leakage, eliminate all ignition sources.
P390	Absorb spillage to prevent material damage.
P391	Collect spillage.
P401	Store in accordance with ...
P402	Store in a dry place.
P402+P404	Store in a dry place. Store in a closed container.
P403	Store in a well ventilated place.
P403+P233	Store in a well ventilated place. Keep container tightly closed.
P403+P235	Store in a well ventilated place. Keep cool.
P404	Store in a closed container.
P405	Store locked up.
P406	Store in a corrosive resistant/... container with a resistant inner liner.
P407	Maintain air gap between stacks or pallets.
P410	Protect from sunlight.
P410+P403	Protect from sunlight. Store in a well ventilated place.
P410+P412	Protect from sunlight. Do not expose to temperatures exceeding 50 ºC/122 ºF.
P411	Store at temperatures not exceeding ... ºC/... ºF.
P411+P235	Store at temperatures not exceeding ... ºC/... ºF. Keep cool.
P412	Do not expose to temperatures exceeding 50 ºC/122 ºF.
P413	Store bulk masses greater than ... kg/... lbs at temperatures not exceeding ... °C/... °F.
P420	Store separately/away from other materials.
P422	Store contents under ...
P501	Dispose of contents/container to ...
P502	Refer to manufacturer or supplier for information on recovery or recycling.
P503	Refer to manufacturer/supplier... for information on disposal/recovery/recycling.

List formats

|listtype=abbr (default)

Listtype options
|format=inline |format=bulleted |format=unbulleted |format=horizontal |format=ordered |format=horizontal_ordered

Full abbr list

Complete H, P lists (H200, H201, H202, ...)

As of 31 May 2023: GHS H-phrases (112) H200, H201, H202, H203, H204, H205, H206, H207, H208, H209, H210, H211, H220, H221, H222, H223, H224, H225, H226, H227, H228, H229, H230, H231, H232, H240, H241, H242, H250, H251, H252, H260, H261, H270, H271, H272, H280, H281, H282, H283, H284, H290, H300, H300+H310, H300+H310+H330, H300+H330, H301, H301+H311, H301+H311+H331, H301+H331, H302, H302+H312, H302+H312+H332, H302+H332, H303, H303+H313, H303+H313+H333, H303+H333, H304, H305, H310, H310+H330, H311, H311+H331, H312, H312+H332, H313, H313+H333, H314, H315, H315+H320, H316, H317, H318, H319, H320, H330, H331, H332, H333, H334, H335, H336, H340, H341, H350, H350i, H351, H360, H360D, H360Df, H360F, H360FD, H360Fd, H361, H361d, H361f, H361fd, H362, H370, H371, H372, H373, H400, H401, H402, H410, H411, H412, H413, H420, H441 Order entered: |H201|H200| to check sorting. GHS P-phrases (183) P102, P103, P201, P202, P203, P210, P211, P212, P220, P221, P222, P223, P230, P231, P231+P232, P232, P233, P234, P235, P235+P410, P236, P240, P241, P242, P243, P244, P250, P251, P260, P261, P262, P263, P264, P264+P265, P265, P270, P271, P272, P273, P280, P281, P282, P283, P284, P285, P301, P301+P310, P301+P310+P330, P301+P312, P301+P312+P330, P301+P330+P331, P302, P302+P312, P302+P317, P302+P334, P302+P335+P334, P302+P350, P302+P352, P302+P352+P312, P302+P353, P302+P361+P354, P303, P303+P361+P353, P303+P361+P353+P315, P304, P304+P312, P304+P317, P304+P340, P304+P340+P310, P304+P340+P311, P304+P340+P312, P304+P340+P315, P304+P341, P305, P305+P351+P338, P305+P351+P338+P310, P305+P354+P338, P306, P306+P360, P307, P307+P311, P308, P308+P310, P308+P311, P308+P313, P308+P316, P308+P360, P309, P309+P311, P310, P311, P312, P313, P314, P315, P318, P320, P321, P322, P330, P331, P332, P332+P313, P332+P317, P333, P333+P313, P333+P317, P334, P335, P335+P334, P336, P336+P315, P336+P317, P337, P337+P313, P337+P317, P338, P340, P341, P342, P342+P311, P342+P316, P350, P351, P352, P353, P354, P360, P361, P361+P364, P362, P362+P364, P363, P364, P370, P370+P372+P380+P373, P370+P376, P370+P378, P370+P380, P370+P380+P375, P370+P380+P375+P378, P371, P371+P380+P375, P372, P373, P374, P375, P376, P377, P378, P380, P381, P390, P391, P401, P402, P402+P404, P403, P403+P233, P403+P235, P404, P405, P406, P407, P410, P410+P403, P410+P412, P411, P411+P235, P412, P413, P420, P422, P501, P502, P503 Order entered: |P103|P102| to check sorting.

Features

Hide Doubles

Repeated phrase codes are hidden:

• {{GHS phrases|H400|H401|H401|H401}} →

Omit Rules

|omit=true (default)

Omit Rules as applied by {{GHS phrases}} ()
Omit Rules: when the keep ID is present, do not show the omit ID phrase • keep H314, omit H318 • keep P203, omit P103 • keep P413, omit P235 • keep H411, omit H401 • keep P411, omit P235 • keep H412, omit H402 • keep H410, omit H400 • keep P236, omit P234 Categorised as Category:GHS warnings (0) under "O" Source: Template:GHS2021/cs1

• {{GHS phrases|H314|H318}} →

All module functions

module function	template	note
main	{{GHS phrases}} {{H-phrases}} {{P-phrases}}	|setid=H, P preset
listAll	{{GHS phrases/inline}}	equals main + |listtype=inline
numberOfPhrases	{{GHS phrases/number of phrases}}
listAll	{{GHS phrases/list all}}
listOmitRules	{{GHS phrases/list omit rules}}	documentation only; no |setid=

Tracking

• First Help page: Template:GHS phrases (including documentation)
• Category:GHS errors (0) (includes: "unknown parameter used")
• Category:GHS warnings (0)

See also

• Main article: Globally Harmonized System of Classification and Labelling of Chemicals (GHS);

Lists: GHS hazard statements, GHS precautionary statements

• {{Chembox}}, {{Chembox Hazards}}

• Source: Template:GHS2021/cs1

---

--------------------------------------------------------------------------------
-- Module:GHS phrases
-- 
-- main: reads GHS parameters (arguments like "H301", "P401")
--		and returns for each (listtype='abbr'):
--		phraseID visible; formal phrase text as <abbr title="...">
-- setID	= "H" or "P"
-- phraseID = e.g. "H201", "P231+P234"
-- phrase text read from array tables in [[Module:GHS phrases/data]]
--
-- Implements: [[Template:GHS phrases]]
-- Helppage: [[Template:GHS phrases]]
-- Error category: [[Category:GHS errors]], [[Category:GHS warnings]] (mainspace pages only)
--
-- Also: 
-- listAll(), numberOfPhrases(), listOmitRules(),
-- listtype, omit
--------------------------------------------------------------------------------
require('strict')
local r = {}	-- "r" for return, so no confusion with setID P
local GHSdata	= mw.loadData('Module:GHS phrases/data')
local getArgs	= require('Module:Arguments').getArgs
local tTools	= require('Module:TableTools')
local yesno		= require('Module:Yesno')
local tArgName	= {} -- named parameters (setid, omit, listtype)
local tMessagesToShow = {} -- the tail: Preview, Categories

--------------------------------------------------------------------------------
-- wlHelpPage
--
-- Formats page as [[Helppage#Section|Label]]
-- by default, sLabel == sSection
--------------------------------------------------------------------------------
local function wlHelpPage(sSection, sLabel)
local sHelpPage = 'Template:GHS phrases'
	
	if sLabel == nil then sLabel = sSection end
	
	if (sLabel or '') == '' then
		sLabel = ''
	else
		sLabel = '|' .. sLabel 
	end
	if (sSection or '') == '' then
		sSection = ''
	else
		sSection = '#' .. sSection
	end
	return '[[' .. sHelpPage .. sSection .. sLabel .. ']]'
end

--------------------------------------------------------------------------------
-- addErrorCategory
--
-- Formats as [[Category:GHS errors|catsort]]
-- or '' when in other namespace.
-- sCatsort option using: H, P, _
--------------------------------------------------------------------------------
local function addErrorCategory(sCatsort)
local pagetype = require('Module:Pagetype').main
	
	local wlErrCat = ''
	if pagetype() == 'article' then -- mainspace only
		if sCatsort == nil then sCatsort = tArgName['setID'] end
		
		if sCatsort == '' then
			wlErrCat = '[[Category:GHS errors]]'
		else
			wlErrCat = '[[Category:GHS errors|' .. sCatsort .. ']]'
		end
	else
		return ''
	end

	table.insert(tMessagesToShow, wlErrCat)
	return
end

--------------------------------------------------------------------------------
-- addWarningCategory
--
-- Formats as [[Category:GHS warnings|catsort]]
-- mainspace only, or '' when in other namespace.
-- sCatsort option using: H, P, U, ?, D, O
--------------------------------------------------------------------------------
local function addWarningCategory(sCatsort)
local pagetype = require('Module:Pagetype').main
if sCatsort == nil then sCatsort = tArgName['setID'] end
		
	local wlWarnCat = ''
	if pagetype() == 'article' then -- mainspace only
		if sCatsort == '' then
			wlWarnCat = '[[Category:GHS warnings]]'
		else
			wlWarnCat = '[[Category:GHS warnings|' .. sCatsort .. ']]'
		end
	else
		return 
	end

	table.insert(tMessagesToShow, wlWarnCat)
	return
end

--------------------------------------------------------------------------------
-- addPreviewMsg
--------------------------------------------------------------------------------
local function addPreviewMsg(sMsg)
local previewWarn = require('Module:If preview')._warning
	table.insert(tMessagesToShow, previewWarn({sMsg}))
	return
end

--------------------------------------------------------------------------------
-- showPreviewMsg
--
-- show table tMessagesToShow
-- preview-messages and errorcat
-- all namespaces
--------------------------------------------------------------------------------
local function showPreviewMsg()
	if tTools.size(tMessagesToShow) > 0 then
		return table.concat(tMessagesToShow, '')
	else
		return ''
	end
end

--------------------------------------------------------------------------------
-- applyRemoveDuplicates
--
-- returns edited table, with double Codes removed
-- adds warning with codes.
-- base table tArgs is walked through by a iwalker that reads a singel code,
-- then a ikiller checks the upward part of the same table to delete all copies
-- ikiller starts at end of table, walks towards iwalker; then tArgs is compressed
-- iwalker steps 1 up in the freshly compressed table
-- Used: iArgs is sorted, and order stays same. compress does not change that.
--------------------------------------------------------------------------------
local function applyRemoveDuplicates(tArgs)
local iR, iK -- iR = reader, iK = killer
local hit = false

	iR = 1
	while iR < #tArgs do
		iK = #tArgs -- will be counting downwards
		while iK > iR do
			if tArgs[iK] == tArgs[iR] then
				hit = true
				addPreviewMsg('Duplicate removed: ' .. tArgs[iR])
				table.remove(tArgs, iK)
				tTools.compressSparseArray(tArgs)
			end
			iK = iK - 1
		end
		tTools.compressSparseArray(tArgs)
		iR = iR + 1
	end

	if hit then
		addWarningCategory('D')
	end
	return tArgs
end

--------------------------------------------------------------------------------
-- applyOmitRules
--
-- returns edited table, with Omit phraseID's removed
-- Omit rule is per GHS_Rev9E_0.pdf (2021)
--------------------------------------------------------------------------------
local function applyOmitRules(tArgs)
local tRules = GHSdata['tOmitRules']
	local hit = false
	
	for keep, omit in pairs(tRules) do
		if tTools.inArray(tArgs, omit) then
			if tTools.inArray(tArgs, keep) then
				hit = true
				for i, k in pairs(tArgs) do
					if k == omit then
						table.remove(tArgs, i)		
					end
				end
				addPreviewMsg(wlHelpPage('Omit Rules') .. ': keep ' .. keep .. ', omit ' .. omit)
			end
		end
	end
	if hit then
		tTools.compressSparseArray(tArgs)
		addWarningCategory('O')
	end
	return tArgs
end

--------------------------------------------------------------------------------
-- label H-phrases or P-phrases
--------------------------------------------------------------------------------
local function PHlabel()
	if tArgName['setID'] == 'GHS' then
		return 'GHS phrases'
	else
		return tArgName['setID'] .. '-phrases'
	end
end

--------------------------------------------------------------------------------
-- inMono
--
-- Use mono font-family (from: Template:Mono)
--------------------------------------------------------------------------------
local function inMono(s)
	if s == nil then s = '' end
	return '<span class="monospaced" style="font-family: monospace;">' .. s .. '</span>'
end

--------------------------------------------------------------------------------
-- wlInlineTag
--
-- Returns <sup>[?]</sup> with wikilink to [[helppage#section|errormessage]]
--------------------------------------------------------------------------------
local function wlInlineTag(phraseID)
	local sMsg
	sMsg = '<sup><span class="noprint Inline-Template">&#91;<i>'
				.. wlHelpPage(PHlabel(), '<span title="' 
									.. PHlabel() .. ': '
									.. phraseID
									.. ' not found'
									.. '">?</span>')
				.. '</i>&#93;</span></sup>'
	return sMsg
end

--------------------------------------------------------------------------------
-- errorPhraseIDnotFound
--
-- Returns single value when error (not found in list):
-- plain value + inline warning [?] (linked) + error cat (mainsp) + preview warning
--------------------------------------------------------------------------------
local function errorPhraseIDnotFound(phraseID)
	if phraseID == nil then phraseID = '' end
	
	local inlineTag = wlInlineTag(phraseID)
	local previewMsg = wlHelpPage(PHlabel()) .. ': \"' .. phraseID .. '\" not found'
	addPreviewMsg(previewMsg)
	addErrorCategory()
	
	return phraseID .. inlineTag
end

--------------------------------------------------------------------------------
-- errorHPsetIDnotFound
--
-- setID H or P could not be found
--------------------------------------------------------------------------------
local function errorHPsetIDnotFound()
	local sMsg
	sMsg = wlHelpPage('', PHlabel())
			.. ': "H" or "P" set id not found' 
			.. ' (please use form like "|H200" or "|P300+P301")'
	addPreviewMsg(sMsg)
	addErrorCategory('?')
	return showPreviewMsg()
end

--------------------------------------------------------------------------------
-- errorHPsetIDmissing
--
-- parameter |setid= to be used
--------------------------------------------------------------------------------
local function errorHPsetIDmissing()
	local sMsg
	sMsg = wlHelpPage( '', PHlabel())
			.. ': "H" or "P" set id not found,' 
			.. ' please use |setid=... (H or P)'
	addPreviewMsg(sMsg)
	return
end

--------------------------------------------------------------------------------
-- formatPhraseAbbr
--
-- format phraseID and text, for abbr-form (infobox list form)
--------------------------------------------------------------------------------
local function formatPhraseAbbr(phraseID, sPhrase)
	return '<abbr class="abbr" title=" ' .. phraseID .. ': ' .. sPhrase .. '">'
				.. phraseID 
				.. '</abbr>'
end

--------------------------------------------------------------------------------
-- formatPhraseInline
--
-- format phraseID and text, for inline form (in sentence)
-- adds "quotes"
--------------------------------------------------------------------------------
local function formatPhraseInline(phraseID, sPhrase)
	return inMono(phraseID) .. ': \"' .. sPhrase .. '\"'
end

--------------------------------------------------------------------------------
-- formatPhraseList
--
-- as inline, but no "quotes" added.
--------------------------------------------------------------------------------
local function formatPhraseList(phraseID, sPhrase)
	return inMono(phraseID) .. ': ' .. sPhrase
end

--------------------------------------------------------------------------------
-- getSetID
--
-- Determines setID (expected either 'H' or 'P')
-- First route is: read |setid=
-- When |setid= is not set, 
--		it looks for a first parameter that has an H of P prefix (in |P201|P202|...)
--		when not found, 'GHS' is retured
-- In one call, P and H numbers can *not* be mixed
--		so "|H201|P202|" will cause error "P202 not found" (... in H-list)
--------------------------------------------------------------------------------
local function getSetID(tArgs)
	local setIDfound = 'GHS'
	local paramsetID = tArgs['setid'] or nil
	
	if (paramsetID ~= nil) and (paramsetID == 'P' or paramsetID == 'H') then
		setIDfound = paramsetID
	else
		local initial = nil
		for i, v in ipairs(tArgs) do
			initial = mw.ustring.match(v, '^[PH]')
			if initial ~=nil then
				setIDfound = initial
				break
			end
		end
	end
	return setIDfound
end

--------------------------------------------------------------------------------
-- getListType
--
-- Checks list format, including those from Module:List
--------------------------------------------------------------------------------
local function getListType(tArgs)
	local listTypes = {
	['abbr'] = true,
	['bulleted'] = true,
	['unbulleted'] = true,
	['horizontal'] = true,
	['ordered'] = true,
	['horizontal_ordered'] = true,
	['horizontal ordered'] = true,
	['inline'] = true
	}
	local sListType = tArgs['listtype'] or 'abbr'

	if sListType == '' or sListType == 'abbr' then
		return 'abbr'
	elseif listTypes[sListType] == true then
		if sListType == 'horizontal ordered' then
			sListType = 'horizontal_ordered'
		end
		return sListType
	else 
		sListType = 'abbr'
	end
	return sListType
end

--------------------------------------------------------------------------------
-- getDoOmitRules
--------------------------------------------------------------------------------
local function getDoOmitRules(tArgs)
	local b = yesno(tArgs['omit'], true)
	
	if b == nil then b = true end

	return yesno(b, true)
end

--------------------------------------------------------------------------------
-- prepareArgs
--
-- First: determine setID (from |setID= OR from prefixes in parameters)
-- Then: clean up & format phrase IDs (=unnamed parameters)
--		remove bad characters, create H/P pattern "H201", "P310+P302"
-- straight array, no nil's, sorted
--------------------------------------------------------------------------------
local function prepareArgs(tArgs)

	tArgName['setID'] = getSetID(tArgs)
	tArgName['listtype'] = getListType(tArgs)
	tArgName['omit'] = getDoOmitRules(tArgs)

	tArgs = tTools.compressSparseArray(tArgs) -- removes all named args
	if string.len(tArgName['setID']) == 1 and #tArgs > 0 then
		for i, v in ipairs(tArgs) do
			v = mw.text.decode(v)
			v = mw.ustring.gsub(v, '[^%d%+A-Za-z]', '')
			v = mw.ustring.gsub(v, '^(%d)', tArgName['setID'] .. '%1')
			v = mw.ustring.gsub(v, '%+(%d)', '+' .. tArgName['setID'] .. '%1')
			tArgs[i] = v
		end
		table.sort(tArgs)
	end
	return tArgs
end

--------------------------------------------------------------------------------
-- listAll
--
-- Returns wikitable rows for each phrase id.
-- requires |setID=P/H
-- returns full list, all phrases, for a setID
-- 2-columns wikitable, sorted, sortable, anchor like "H201" for each
--------------------------------------------------------------------------------
function r.listAll(frame)
local newArgs = getArgs(frame)
local tL = {}

	prepareArgs(newArgs)
	
	local tRead
	if tArgName['setID'] == 'H' then
		tRead = GHSdata['Hphrases']
	elseif tArgName['setID'] == 'P' then
		tRead = GHSdata['Pphrases']
	else 
		errorHPsetIDmissing()
		return  showPreviewMsg()
	end

	-- Intermediate table t2 to maintain order; read from original table (/data)
	local t2 = {}
	local iPh
	for s, v in pairs(tRead) do
		iPh = tonumber(mw.ustring.match(s, '[PH](%d%d%d)'))
		if string.len(s) > 4 then
			iPh = tTools.size(t2) + 1
		end
		table.insert(t2, iPh, s)
	end
	t2 = tTools.compressSparseArray(t2)
	table.sort(t2)

	local sTR, v, sAnchor
	-- i = array index, s = phraseID, v = phrase text
	for i, s in ipairs(t2) do
		v = tRead[s]
		sAnchor = '<span class="anchor" id="' .. s .. '"></span>'
		sTR = '|- ' .. sAnchor .. '\n| datasortvalue="' .. i .. '" | <span style="font-family: monospace;">' .. s .. '</span> || ' .. v
		table.insert(tL, sTR)
	end

	return table.concat(tL, '\n')
end

--------------------------------------------------------------------------------
-- numberOfPhrases
--
-- Documentation
-- requires |setID=H/P
-- Returns number of phrases, in format
--	"GHS H-phrases (123)"
--------------------------------------------------------------------------------
function r.numberOfPhrases(frame)
	local newArgs = getArgs(frame)

	prepareArgs(newArgs)

	local iT
	if tArgName['setID'] == 'H' then
		iT = tTools.size(GHSdata['Hphrases'])
	elseif tArgName['setID'] == 'P' then
		iT = tTools.size(GHSdata['Pphrases'])
	else
		errorHPsetIDmissing()
		return showPreviewMsg()
	end

	return 'GHS ' .. PHlabel() .. ' <span style="font-weight: normal;">(' .. tostring(iT) .. ')</span>'
end

--------------------------------------------------------------------------------
-- listOmitRules
--
-- self-documentation
--------------------------------------------------------------------------------
function r.listOmitRules()
local tRules = GHSdata['tOmitRules']
local tL = {}
local s

	s = wlHelpPage('Omit Rules')
		.. ': when the <i>keep</i> ID is present, do not show the <i>omit</i> ID phrase'
	table.insert(tL, s)
	for keep, omit in pairs (tRules) do
		s = '&bull; keep ' .. inMono(keep) .. ', omit ' .. inMono(omit)
		table.insert(tL, s)
	end
	return table.concat(tL, '<br/>')
end

--------------------------------------------------------------------------------
-- _main
--
-- processes setID (H, P) and phrase codes
--		error:	setID not P, H
--				code not found
-- cannot mix H and P phrases
-- reads phrases from /data H or P phrases tables
-- formats phrase (abbreviation, abbr-title, phraseID)
--------------------------------------------------------------------------------
function r._main(tArgs)

	tArgs = prepareArgs(tArgs)
	
	if #tArgs == 0 then
		return showPreviewMsg() -- no content
	elseif tArgName['setID'] == 'GHS' then
		return errorHPsetIDnotFound()
	end

	tArgs = applyRemoveDuplicates(tArgs)
	if tArgName['omit'] then
		tArgs = applyOmitRules(tArgs)
	end

	local formatterF
	if tArgName['listtype'] == 'abbr' then
		formatterF = formatPhraseAbbr
	elseif tArgName['listtype'] == 'inline' then
		formatterF = formatPhraseInline
	else --- Module:List options
		formatterF = formatPhraseList
	end
	
	local tReadD = {}
	if tArgName['setID'] == 'H' then
		tReadD = GHSdata['Hphrases']
	elseif tArgName['setID'] == 'P' then
		tReadD = GHSdata['Pphrases']
	else
		return showPreviewMsg()
	end

	local sPhrase
	local tR = {}
	for i, v in ipairs(tArgs) do
		sPhrase = tReadD[v]
		if sPhrase == nil then
			table.insert(tR, errorPhraseIDnotFound(tostring(v)))
		else
			table.insert(tR, formatterF(v, sPhrase))
		end
	end

	if tArgName['listtype'] == 'abbr' then
		return table.concat(tR, ', ') .. showPreviewMsg()
	elseif tArgName['listtype'] == 'inline' then
		return table.concat(tR, ', ') .. showPreviewMsg()
	else
		local mList = require('Module:List')
		return mList[tArgName['listtype']](tR) .. showPreviewMsg()
	end
end

--------------------------------------------------------------------------------
-- main
--
-- handles template input frame, then calls generic _main() function
-- To be invoked from {{template}}
--------------------------------------------------------------------------------
function r.main(frame)
local newArgs = getArgs(frame)
	return r._main(newArgs) 
end


return r