luci-mod-network: Rework address helptext for DHCP

Ease translators lives.

This introduces the function customi18n for positional string variables.

Word and grammatical ordering of some languages breaks guarantees for
positional string arguments.

Signed-off-by: Paul Donald <newtwen@gmail.com>

1 files changed, 23 insertions, 3 deletions

diff --git a/modules/luci-mod-network/htdocs/luci-static/resources/view/network/dhcp.js b/modules/luci-mod-network/htdocs/luci-static/resources/view/network/dhcp.js
index 45a2e2573f..91b6e6a189 100644
--- a/modules/luci-mod-network/htdocs/luci-static/resources/view/network/dhcp.js
+++ b/modules/luci-mod-network/htdocs/luci-static/resources/view/network/dhcp.js
@@ -308,12 +308,32 @@ return view.extend({
 		o.placeholder = '/example.org/10.1.2.3';
 		o.validate = validateServerSpec;
 
+		function customi18n(template, values) {
+			return template.replace(/\{(\w+)\}/g, (match, key) => values[key] || match);
+		};
+
 		o = s.taboption('general', form.DynamicList, 'address',
 			_('Addresses'),
 			_('Resolve specified FQDNs to an IP.') + '<br />' +
-			_('Syntax: <code>/fqdn[/fqdn…]/[ipaddr]</code>.') + '<br />' +
-			_('<code>/#/</code> matches any domain. <code>/example.com/</code> returns NXDOMAIN.') + '<br />' +
-			_('<code>/example.com/#</code> returns NULL addresses (<code>0.0.0.0</code> and <code>::</code>) for example.com and its subdomains.'));
+			customi18n(_('Syntax: {code_syntax}.'),
+				{code_syntax: '<code>/fqdn[/fqdn…]/[ipaddr]</code>'}) + '<br />' +
+			customi18n(_('{example_nx} returns {nxdomain}.',
+				'hint: <code>/example.com/</code> returns <code>NXDOMAIN</code>.'),
+				{example_nx: '<code>/example.com/</code>', nxdomain: '<code>NXDOMAIN</code>'}) + '<br />' +
+			customi18n(_('{any_domain} matches any domain (and returns {nxdomain}).',
+				'hint: <code>/#/</code> matches any domain (and returns NXDOMAIN).'),
+				{any_domain:'<code>/#/</code>', nxdomain: '<code>NXDOMAIN</code>'}) + '<br />' +
+			customi18n(
+				_('{example_null} returns {null_addr} addresses ({null_ipv4}, {null_ipv6}) for {example_com} and its subdomains.',
+					'hint: <code>/example.com/#</code> returns NULL addresses (<code>0.0.0.0</code>, <code>::</code>) for example.com and its subdomains.'),
+				{	example_null: '<code>/example.com/#</code>',
+					null_addr: '<code>NULL</code>', 
+					null_ipv4: '<code>0.0.0.0</code>',
+					null_ipv6: '<code>::</code>',
+					example_com: '<code>example.com</code>',
+				}
+			)
+		);
 		o.optional = true;
 		o.placeholder = '/router.local/router.lan/192.168.0.1';