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2-category 2-category-theory abelian-categories adjoint algebra algebraic algebraic-geometry algebraic-topology analysis analytic-geometry arithmetic arithmetic-geometry book bundles calculus categorical categories category category-theory chern-weil-theory cohesion cohesive-homotopy-type-theory cohomology colimits combinatorics complex complex-geometry computable-mathematics computer-science constructive cosmology deformation-theory descent diagrams differential differential-cohomology differential-equations differential-geometry digraphs duality elliptic-cohomology enriched fibration foundation foundations functional-analysis functor gauge-theory gebra geometric-quantization geometry graph graphs gravity grothendieck group group-theory harmonic-analysis higher higher-algebra higher-category-theory higher-differential-geometry higher-geometry higher-lie-theory higher-topos-theory homological homological-algebra homotopy homotopy-theory homotopy-type-theory index-theory integration integration-theory internal-categories k-theory lie-theory limits linear linear-algebra locale localization logic mathematics measure measure-theory modal modal-logic model model-category-theory monad monads monoidal monoidal-category-theory morphism motives motivic-cohomology nlab noncommutative noncommutative-geometry number-theory of operads operator operator-algebra order-theory pages pasting philosophy physics pro-object probability probability-theory quantization quantum quantum-field quantum-field-theory quantum-mechanics quantum-physics quantum-theory question representation representation-theory riemannian-geometry scheme schemes set set-theory sheaf simplicial space spin-geometry stable-homotopy-theory stack string string-theory superalgebra supergeometry svg symplectic-geometry synthetic-differential-geometry terminology theory topology topos topos-theory tqft type type-theory universal variational-calculus

1. • CommentRowNumber1.
   • CommentAuthorTobyBartels
   • CommentTimeJun 20th 2009
   • PermaLink
   Author: TobyBartels
   Format: MarkdownOK, I've found a missing feature that I think really amounts to a bug in the redirection system: we can't redirect pages whose titles begin with spaces. For example, Tim Porter just made a contribution signed as ‘  Tim Porter’. This isn't the first time that Tim's misspelt his own name; in the past, I created redirect pages to point to [[Tim Porter]]. But now I decided that I should add ‘[[!redirects   Tim Porter]]’ instead. But I was rather suspicious that this might not work … and it didn't! Note that no amount of fixing links and deleting bad pages will get rid of this. The contribution is signed ‘  Tim Porter’, and going to the [contribution listing](http://ncatlab.org/nlab/authors) or [archive page](http://ncatlab.org/nlab/revision/homotopy+coherent+nerve/16) will always link to [[  Tim Porter]] as the contributor. (Note that it is no longer possible to create wikilinks to pages with trailing or double spaces. But you can still sign your name like that or create such pages by following such a signature or by hacking the URI.)

   OK, I've found a missing feature that I think really amounts to a bug in the redirection system: we can't redirect pages whose titles begin with spaces.

   For example, Tim Porter just made a contribution signed as ‘  Tim Porter’. This isn't the first time that Tim's misspelt his own name; in the past, I created redirect pages to point to Tim Porter. But now I decided that I should add ‘!redirects   Tim Porter’ instead. But I was rather suspicious that this might not work … and it didn't!

   Note that no amount of fixing links and deleting bad pages will get rid of this. The contribution is signed ‘  Tim Porter’, and going to the contribution listing or archive page will always link to   Tim Porter as the contributor.

   (Note that it is no longer possible to create wikilinks to pages with trailing or double spaces. But you can still sign your name like that or create such pages by following such a signature or by hacking the URI.)

2. • CommentRowNumber2.
   • CommentAuthorAndrew Stacey
   • CommentTimeJun 26th 2009
   • PermaLink
   Author: Andrew Stacey
   Format: MarkdownDo we ever want pages with leading spaces? Should " category" every be distinct from "category"? One fix would be simply to trim all whitespace before and aft on everything like this (contributions, page names, links, and the like).

   Do we ever want pages with leading spaces? Should " category" every be distinct from "category"? One fix would be simply to trim all whitespace before and aft on everything like this (contributions, page names, links, and the like).

3. • CommentRowNumber3.
   • CommentAuthorTobyBartels
   • CommentTimeJun 27th 2009
   • PermaLink
   Author: TobyBartels
   Format: MarkdownWe *have* a page —or rather, a link to a page— with leading spaces. And we can't fix the link either, since it's a signature. (We also have a redirect page with a space, as I recall, but maybe that's just something in Urs's web, I haven't checked.) But a very general régime of eliminating whitespace would fix that, I agree.

   We have a page —or rather, a link to a page— with leading spaces. And we can't fix the link either, since it's a signature. (We also have a redirect page with a space, as I recall, but maybe that's just something in Urs's web, I haven't checked.)

   But a very general régime of eliminating whitespace would fix that, I agree.