clarify

[ikiwiki.git] / doc / todo / do_not_make_links_backwards.mdwn

diff --git a/doc/todo/do_not_make_links_backwards.mdwn b/doc/todo/do_not_make_links_backwards.mdwn
index 4059d8e2ac83d092bb5210549159082a581ef0f3..50720fed04d06cd69a260323d373cea2852526b6 100644 (file)
--- a/doc/todo/do_not_make_links_backwards.mdwn
+++ b/doc/todo/do_not_make_links_backwards.mdwn
@@ -30,6 +30,35 @@ Discussion
 > > 
 > > Originally, I named that parameter `backwards_links`, but then it wouldn't make sense in the long term, and isn't exactly neutral: it assume the current way is backwards! Your suggestion is interesting however, but I don't think the rtl/ltr nomenclature is problematic, with proper documentation of course... --[[anarcat]]
 
+> > > I still don't think `rtl`/`ltr` is the right terminology here. I think
+> > > the "API" should say what you mean: the distinction being made is
+> > > "text first" vs. "link first", so, say that.
+> > >
+> > > As far as I understand it, RTL languages like Arabic typically write
+> > > text files "in logical order" (i.e. reading/writing order - first
+> > > letter is first in the bytestream) and only apply RTL rendering on
+> > > display. IkiWiki is UTF-8-only, and Unicode specifies that all
+> > > Unicode text should be in logical order. The opposite of logical
+> > > order is is "display order", which is how you would have to mangle
+> > > the file for it to appear correctly on a naive terminal that expects
+> > > LTR; that can only work correctly for hard-wrapped text, I think.
+> > >
+> > > IkiWiki will parse files
+> > > in logical order too; so if a link's text and destination are both
+> > > written in Arabic, in text-before-link order in the source code, an
+> > > Arabic reader starting from the right would still see the text
+> > > before the link. Similarly, in your proposed link-before-text
+> > > order, an Arabic reader would still see the link before the text
+> > > (which in their case means further to the right). So I don't think
+> > > it would make sense to suggest that
+> > > one order was more appropriate for RTL languages than the other: if
+> > > it's "more correct" (for whatever opinion of "correct") in English, then
+> > > it's "more correct" in Arabic too.
+> > >
+> > > (If the destination is written in Latin then it gets
+> > > more complicated, because the destination will be rendered LTR within an
+> > > otherwise RTL document. I think the order still works though.) --[[smcv]]
+
 There's a caveat: we can't have a per-wiki backwards_links option, because of the underlay, common to all wikis, which needs to be converted. So the option doesn't make much sense. Not sure how to deal with this... Maybe this needs to be at the package level? --[[anarcat]]
 
 > I've thought about adding a direction-neutral `\[[!link]]` directive -
@@ -80,6 +109,7 @@ I think we can approach this rationnally:
 
  1. left to right (text then link) can be considered more natural, and should therefore be supported
  2. it is supported in markdown using regular markdown links. in the proposed branch, the underlay wikilinks are converted to use regular markdown links
+    > Joey explicitly rejected this for a valid reason (it breaks inlining). See above. --[[smcv]]
  3. ikiwiki links break other markup plugins, like mediawiki and creole, as those work right to left.
  4. those are recognized "standards" used by other popular sites, like Wikipedia, or any wiki supporting the Creole markup, which is [most wikis](http://www.wikicreole.org/wiki/Engines)