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<p>Exactly.</p>
<p>If a missing value (i.e. use the default) is not the same as explicitly having NO value, how do you override the default with "no value"?</p>
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<p>--colin</p>
<p>On 2016-01-20 08:50, Gerd Petermann wrote:</p>
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<p>I don't think that the meaning really depends on the position. My understanding is that the </p>
<p>complete value (e.g. "80||" ) is parsed by splitting it into separate strings at each pipe symbol.</p>
<p>Result: three strings: "80" , "",""</p>
<p>The value "|80|" also gives three strings: "","80",""</p>
<p>Another point is that an empty value means "use the default", which can </p>
<p>only make sense in special cases like this.</p>
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<p>Gerd</p>
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<div id="divRplyFwdMsg" dir="ltr"><span style="font-size: 11pt; color: #000000; font-family: Calibri, sans-serif;"><strong>Von:</strong> Colin Smale <colin.smale@xs4all.nl><br /><strong>Gesendet:</strong> Mittwoch, 20. Januar 2016 08:23<br /><strong>An:</strong> Tag discussion, strategy and related tools<br /><strong>Betreff:</strong> Re: [Tagging] Removing name_1 and alt_name_1 from Wiki</span>
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<p>I meant that there is a value missing "between the pipes", which at a slightly higher semantic level can mean "use the default". A definition which varies according to position doesn't feel well-formed to me.</p>
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<p>//colin</p>
<p>On 2016-01-20 08:10, Gerd Petermann wrote:</p>
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<div class="pre" style="margin: 0; padding: 0; font-family: monospace;">Colin Smale wrote
<blockquote style="padding: 0 0.4em; border-left: #1010ff 2px solid; margin: 0;">The "lanes" tag family uses a different delimiter ("|"), sometimes<br /> together with a semicolon to make a kind of 2-d array. A double pipe<br /> ("||") indicates a missing value there. Wouldn't it be nice if we were<br /> consistent?</blockquote>
<br /> That is new to me. My understanding of a double pipe is that described here:<br /><a id="LPlnk669213" href="http://wiki.openstreetmap.org/wiki/Proposed_features/lanes_General_Extension#Default_values">http://wiki.openstreetmap.org/wiki/Proposed_features/lanes_General_Extension#Default_values</a>
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<div id="LPTitle_14532758306710.04776416233154446" style="top: 0px; color: #0078d7; font-weight: 400; font-size: 21px; font-family: 'wf_segoe-ui_light','Segoe UI Light','Segoe WP Light','Segoe UI','Segoe WP',Tahoma,Arial,sans-serif; line-height: 21px;"><a id="LPUrlAnchor_14532758306720.9541391422923469" style="text-decoration: none;" href="http://wiki.openstreetmap.org/wiki/Proposed_features/lanes_General_Extension#Default_values">Proposed features/lanes General Extension - OpenStreetMap Wiki</a></div>
<div id="LPMetadata_14532758306720.24825537925802077" style="margin: 10px 0px 16px; color: #666666; font-weight: 400; font-family: 'wf_segoe-ui_normal','Segoe UI','Segoe WP',Tahoma,Arial,sans-serif; font-size: 14px; line-height: 14px;">wiki.openstreetmap.org</div>
<div id="LPDescription_14532758306730.4509325038585642" style="display: block; color: #666666; font-weight: 400; font-family: 'wf_segoe-ui_normal','Segoe UI','Segoe WP',Tahoma,Arial,sans-serif; font-size: 14px; line-height: 20px; max-height: 100px; overflow: hidden;">A simple, straightforward extension of existing tags to specify properties not only for a way as whole but for the lanes of the way instead. Based on this general ...</div>
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<br /> which indicates that a double pipe means one or two default values,<br /> depending on the position.<br /> At the end of the value, it means two default values.<br /><br /> Gerd<br /><br /><br /><br /> --<br /> View this message in context: <a href="http://gis.19327.n5.nabble.com/Removing-name-1-and-alt-name-1-from-Wiki-tp5864465p5865207.html"> http://gis.19327.n5.nabble.com/Removing-name-1-and-alt-name-1-from-Wiki-tp5864465p5865207.html</a><br /> Sent from the Tagging mailing list archive at Nabble.com.<br /><br /> _______________________________________________<br /> Tagging mailing list<br /><a href="mailto:Tagging@openstreetmap.org">Tagging@openstreetmap.org</a><br /><a href="https://lists.openstreetmap.org/listinfo/tagging">https://lists.openstreetmap.org/listinfo/tagging</a></div>
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