Forum: Instiki – Topic: Debian installation

I think there’s an issue with Rack 3.0. See if this change to your Gemfile helps

--- a/Gemfile
+++ b/Gemfile
@@ -1,7 +1,7 @@
 source "https://rubygems.org"
 gem "sqlite3", "1.4.2"
 gem "itextomml", ">=1.6.0"
-gem "rack", ">=2.0"
+gem "rack", "~>2.0"
 gem "thin"
 gem "after_commit"
 gem "rubyzip", '~>2.3.0'

Forum: Instiki – Topic: Instiki 0.30.3

While there are a few new features, this is primarily a security release, to deal with an issue uncovered by Christian Sattler.

You will need to do a

ruby bundle install

to update some of the dependencies.

Forum: Instiki – Topic: Page with multiple SVGs doesn't render properly

Just a tip: you don’t really need to wrap your SVG in a MathML equation. If all you need is to center the figure,

+--{: style='margin: auto; text-align: center'}
<svg> ...</svg>
=--

will suffice (and won’t generate the superfluous MathML wrapper).

(Even better, edit the CSS tweaks for your Web, to add a .centered class:

.centered {margin: auto; text-align: center}

Then this could be abbreviated to

+--{.centered}
<svg> ...</svg>
=--

)

Forum: Instiki – Topic: Page with multiple SVGs doesn't render properly

Just so we’re clear, Instiki takes care to uniquify the #ids of the SVG fragments generated from Tikz source. If you want to generate the SVG yourself, then that responsibility falls on you.

Forum: Instiki – Topic: Page with multiple SVGs doesn't render properly

Sorry. I guess I misunderstood what you are doing. Instiki allows the inclusion of Tikz source (either inline or via [!include ...]). But that’s not what you are doing.

You’ve created two SVG fragments by some means or other. It doesn’t matter whether you put them inline or via [!include...]. The source of your trouble is that #ids need to be unique on a page, and your two SVG fragments have duplicate #ids. Individually, they work fine; but put them on the same page and all hell breaks loose.

Fix your #ids and you’ll fix your display problems.

This again, has nothing to do with Instiki, its support for Tikz or for SVG. It’s basic X(HT)ML.

Forum: Instiki – Topic: Page with multiple SVGs doesn't render properly

I have pages with multiple Tikz-generated images. So I don’t know what your problem is. Perhaps if you porvided a link …

Forum: Instiki – Topic: SVG editor doesn't work

The problem isn’t on the browser end, but rather on the server end. Instiki is misinterpreting your browsers request for that file (which resides under public/svg-edit/editor/jgraduate/css/jGraduate.css) with a request for a wiki page (in a web named svg-edit). That’s not a problem I’m seeing on any of my Instiki installations. So I’m trying to figure out what’s “different” about yours.

Forum: Instiki – Topic: Heroku hosting fails

Hmm. Looking more closely at your error message, I think this commit might fix your problem. Dunno what the source of the extra space is, but that seems to be the cause of Heroku’s complaints.

Forum: Instiki – Topic: SVG editor doesn't work

Do you have a Web named “svg-edit”?

Forum: Instiki – Topic: Heroku hosting fails

Clearly you are trying to use the wrong Gemfile.lock. The correct one (which you are supposed to rename from Gemfile.lock.heroku) doesn’t have a “BUNDLED WITH” line in it.

Try following these instructions.

Forum: Instiki – Topic: Heroku hosting fails

Hmm. Yes, it looks like the Gemfile.lock.heroku was out-of-sync with the Gemfile.heroku. I’ve updated both of them.

Forum: tex2svg – Topic: Announcing tex2svg

Actually, with tex2svg 1.0.12, the size of the Docker image has shrunk to 1.09 GB.

Forum: tex2svg – Topic: Announcing tex2svg

With the aid of this optional add-on, Instiki (and this forum) can process embedded Tikz code to produce SVG figures. Think of it as a non-WYSIWYG alternative to SVG-Edit. You can get the code from Github.

The easiest way to run it is as a Docker container. The Docker image is 2.14 GB, which is on the large side, but not as large as a full Texlive installation. Instructions for integrating it with Instiki are here.

Forum: Instiki – Topic: Some problem with Windows !??

Some more details would be helpful.

Are you using RubyInstaller?

Forum: Instiki – Topic: Using instiki.desktop to autostart at login

Definitely should update those instructions for systemd, which seems to have replaced init in most Linux distros.

Forum: Instiki – Topic: Installation problem

Can you access

http://127.0.0.1:2500/web_list

? If so, what are all the links on that page?

(Clearly, something got screwed up in creating your first wiki. If we can’t straighten this up, I’d suggest reinstalling.)

Edit: To be clear, a full reinstall is probably not necessary. A simple

kill <pid-of-instiki>
git checkout -- db/production.db.sqlite3
ruby ./instiki

will suffice to reset the database.

Forum: Instiki – Topic: Installation problem

I assume you’re running on localhost?

In that case, you should be able to access the URL

http://127.0.0.1:2500/

If you have more than one wiki (“web” in Instiki’s idiosyncratic parlance), this will redirect to

http://127.0.0.1:2500/web_list

If you have only one web configured it will, instead, redirect to the HomePage of that web.

Forum: Instiki – Topic: Installation problem

I would not expect the (ancient!) gem version of Instiki to work at all.

What you need to do is

git clone https://github.com/parasew/instiki.git
cd instiki
ruby bundle install  --path vendor/bundle

Then, if all went well,

ruby ./instiki --daemon

Forum: Instiki – Topic: macOS nokogiri

Hmmm. That’s unexpected. You can edit the Gemfile to replace the line

gem "nokogiri", '~>1.7.0'

with

gem "nokogiri", '~>1.6.0'

which should work fine.

Or you can install a more recent version of Ruby (current is 2.4.0; you have 2.0.0).

Forum: Instiki – Topic: Best way to center in markdown?

There are several options. The easiest is

![My former cat](https://golem.ph.utexas.edu/~distler/bree.jpg)
{: style="text-align:center;}

Forum: itex2MML – Topic: possible to create web-wide "preamble"?

Do you use Firefox?

A GreaseMonkey script could provide that sort of customization (and more).

There are other extensions for using an external editor with textareas, which would be another way to get the sort of customizable editing experience you are looking for.

Forum: itex2MML – Topic: possible to create web-wide "preamble"?

No.

Macros are not a feature of itex2MML.

The first reason is security: it’s very hard to protect against the (La)TeX equivalent of the billion laughs attack. This is, of course true of TeX/LaTeX itself, but it’s a much more serious concern when used in a web application (like Instiki, or this forum software).

The second reason is an implementation detail: in the preferred mode of use (as used in Instiki and in this forum software), a separate invocation of itex2MML is used for each formula. A macro defined in one invocation could not be “re-used” in another.

Now, neither of these would be incompatible with implementing a “global” preamble (whose content would be controlled by the website owner and not alterable by ordinary users). On the other hand, that would be rather less-than-useful on a public wiki (or forum), so there hasn’t been much user demand for such a feature either.

I guess a private wiki would be one use-case where it might be desirable …

Forum: Heterotic Beast – Topic: Is Heterotic Beast Compatible With RDBMS?

Heterotic Beast supports any RDBMS backend that Rails supports.

Forum: Instiki – Topic: Dreamhost installation issues

The whole point of rbenv (or rvm) is to set up your paths correctly so that, when you type ruby, you get the desired executable. I don’t know anything about Dreamhost, and didn’t really read the rbenv installation instructions that you followed, but evidently they didn’t quite achieve the desired result.

Forum: Instiki – Topic: Dreamhost installation issues

OK. So let’s assume you’ve gotten that far correctly. cd to your Instiki directory and try

ruby --version
ruby bundle install

The first command should return the version of Ruby you’re using (hopefully 2.2). The second should run the included version of Bundler (as opposed to the one you installed via rbenv).

Forum: Instiki – Topic: Dreamhost installation issues

rbenv is certainly the preferred way to get multi-version Ruby support. So I would go with that, and target Ruby 2.1 or 2.2.

Forum: Instiki – Topic: Dreamhost installation issues

I think it would be better to start with a more recent version (≥1.9.3) of Ruby.

What are your options for that?

Forum: Instiki – Topic: Dreamhost installation issues

“… although if I want to run Ruby 2.1 or 2.2 I think I’m going to have to build it from source, which I don’t know how to do yet.”

Build Ruby from source? I don’t think you want to do that (unless you really have to). It would be better to have a known-working version of Ruby, so that we don’t have to debug possible problems in your Ruby installation as well (well, OK, technically we are already doing that, since your versions of Ruby and Rubgems aren’t totally compatible).

Instiki should work fine with Ruby 1.9.3, if that’s really the most recent version you have access to. We’d just need to modify a line in config/boot.rb to take care your problem with Rubygems.

Forum: Instiki – Topic: Dreamhost installation issues

I’m sorry. I am quite confused as to your configuration.

In your first message, you indicated that

1. You had willy-nilly modified your Gemfile. Did you revert that modification before trying again?
2. Your Ruby version was 1.8.7.

Now you tell me that progress was made by downgrading your Ruby version to “<2.0”?!?

That said, I sorta understand the error about Gem.source_index. The version(s) of Rubygems which came with Ruby < 2.0 had that method. Later versions do not. So there’s a monkey-patch in config/boot.rb to supply the missing method for Ruby ≥ 2.0.

Evidently, you have the odd combination of an old (1.9.3) version or Ruby and a recent version of Rubygems.

Maybe you should start again with

• an unmodified installation of Instiki.
• a recent version of Ruby: I recommend 2.1 or 2.2.

Run ruby bundle install and see what happens. If that fails, post your errors here. If it succeeds, but then ./instiki fails, post your Gemfile.lock, so we can see what got installed.

Forum: Instiki – Topic: Dreamhost installation issues

On the other hand, if you’re just using ASCII characters, you can replace [[:word:]] with \w on lines 263 and 267 of vendor/bundle/ruby/1.8/bundler/gems/maruku-aa33367fa89e/lib/maruku/input/parse_span.rb and not run into any problems.