Elm Graphics.Input - elm

I'm trying to run the Elm input examples from this page. Specifically, the Text Field example, and I'm getting an error saying that the Graphics.Input module is missing.
I've got this in a file called Main.elm:
import Graphics.Input as Input
main = let (field, state) = Input.field "Type here!"
in lift2 display field state
display field state =
field `above` asText state
If I run elm-server and navigate to localhost:8000, I get the error
Your browser may not be supported. Are you using a modern browser?
Runtime Error in Main module:
Error: Module 'Graphics.Input' is missing. Compile with --make flag or load missing module in a separate JavaScript file.
The problem may stem from an improper usage of:
Input.field, above
Compiling the project with elm --make Main.elm gives me
elm: Graphics/Input.elm: openFile: does not exist (No such file or directory)
Is there something extra I need to do to install the Graphic.Input?
Additional Notes:
I'm running this on a Debian machine, and installed it using cabal install elm fairly recently (Jun 15 2013). The current version is labeled Elm-0.7.1.1.
If I hop into the chromium JS prompt and poke around, it turns out there's no Elm.Graphics.Input module, but there is an Elm.Input. There isn't a function called field, there's a similar looking one called textField, but it isn't trivially interchangeable.
Running this:
import Input
main = let (field, state) = textField "Type here!"
in lift2 display field state
display field state =
field `above` asText state
gives me the error
Your browser may not be supported. Are you using a modern browser?
Runtime Error in Main module:
TypeError: a is undefined
The problem may stem from an improper usage of:
above

The Graphics.Input package is new in version 0.8. So, since you're running version 0.7, that explains your problem.
0.8 was released somewhat recently, but it's definitely been out longer than June 15th, so you probably just forgot to cabal update before installing it. Running cabal update now and then updating elm to 0.8 should fix your issue.

Related

TypeError: userAgent.toLowerCase is not a function

While running Angular-unit test, using chrome browser, ended up with the error as
TypeError: userAgent.toLowerCase is not a function
at _isAndroid (http://localhost:9876/_karma_webpack_/webpack:/node_modules/#angular/forms/fesm2015/forms.mjs:176:43)
at new DefaultValueAccessor (http://localhost:9876/_karma_webpack_/webpack:/node_modules/#angular/forms/fesm2015/forms.mjs:227:38)
at NodeInjectorFactory.factory (http://localhost:9876/_karma_webpack_/webpack:/node_modules/#angular/forms/fesm2015/forms.mjs:254:1)
at getNodeInjectable (http://localhost:9876/_karma_webpack_/webpack:/node_modules/#angular/core/fesm2015/core.mjs:3565:44)
at instantiateAllDirectives (http://localhost:9876/_karma_webpack_/webpack:/node_modules/#angular/core/fesm2015/core.mjs:10318:27)
at createDirectivesInstances (http://localhost:9876/_karma_webpack_/webpack:/node_modules/#angular/core/fesm2015/core.mjs:9647:5)
at ɵɵelementStart (http://localhost:9876/_karma_webpack_/webpack:/node_modules/#angular/core/fesm2015/core.mjs:14561:9)
at templateFn (ng:///TodaysMarketMoversComponent.js:397:66)
at executeTemplate (http://localhost:9876/_karma_webpack_/webpack:/node_modules/#angular/core/fesm2015/core.mjs:9618:9)
at renderView (http://localhost:9876/_karma_webpack_/webpack:/node_modules/#angular/core/fesm2015/core.mjs:9421:13)
Most wondering/confusing part to me- toLowerCase function has never been used through out the component/spec file.
It looks like the userAgent is being checked by the #angular/forms lib and has been deleted or not provided at all for some reason.
If it's not your code that's changing the userAgent then it's probably some third-party script.
If I were you I'd start with the latest additions in terms of libraries and dependencies and peel them back until I get a unit test running. That will give the clue.

How do you resolve 'Font was not found' error in visualWorks 8.1?

I have been using the report4pdf(bob nemec) package to generate reports as PDFs. Everything goes well except when I am trying to have some nice cell padding on the right.Thought an update would fix that.
So I connected to the public repository and updated the following:
Report4PDF 1.4.0.1
(comments said this was made to match with PDF Development 1.4.3.0 and Font Development 1.3.3.2. So updated those too).
However when I update and run the code it says,' Font not Found'.
Sure enough, when I run the debugger and 'inspect' on the self loadedFonts part from the debugger:
^self loadedFonts at: aSymbolOrFilenameString ifAbsent: [
FontNotFound raiseSignal: aSymbolOrFilenameString , ' was not found']
where: A symbolOrFilenameString= #'Helvetica-Bold'
As I opened the dictionary object, the font was there. Its just that the key didn't match. I am guessing the update changed all the keys except this one.
Anyway I hope you guys can help me out.
Thanks in Advance!
UPDATE 1:
Hi Bob! So I ran the ifNil block on the loadedFonts. But I hit a new error. It says: OrderedCollection(Collection)>>notFoundError.
So its trying to get something from
Graphic.Fonts.OpenType.CmapSubtable class>>classFor::`
The code being:
classFor: formatInteger
^self allSubclasses detect: [:sc | sc subclasses isEmpty and: [ sc formatNumber = formatInteger]]
=======
where formatInteger is 4.
Font class>>loadedFonts changed in the latest 'Fonts Basics' package, and Report4PDF was changed to use the new names. However, the LoadedFonts class variable in Graphics.Fonts.Font is initialized on the first reference. To get the new list, after loading the latest code, you need to run the ifNil: [] block in Font class>>loadedFonts.
In my image, with the latest code loaded, #'Helvetica-Bold' is defined in LoadedFonts.

How do I reload a module in an active Julia session after an edit?

2018 Update: Be sure to check all the responses, as the answer to this question has changed multiple times over the years. At the time of this update, the Revise.jl answer is probably the best solution.
I have a file "/SomeAbsolutePath/ctbTestModule.jl", the contents of which are:
module ctbTestModule
export f1
f1(x) = x + 1
end
I fire up Julia in a terminal, which runs "~/.juliarc.jl". The startup code includes the line:
push!(LOAD_PATH, "/SomeAbsolutePath/")
Hence I can immediately type into the Julia console:
using ctbTestModule
to load my module. As expected f1(1) returns 2. Now I suddenly decide I want to edit f1. I open up "/SomeAbsolutePath/ctbTestModule.jl" in an editor, and change the contents to:
module ctbTestModule
export f1
f1(x) = x + 2
end
I now try to reload the module in my active Julia session. I try
using ctbTestModule
but f1(1) still returns 2. Next I try:
reload("ctbTestModule")
as suggested here, but f1(1) still returns 2. Finally, I try:
include("/SomeAbsolutePath/ctbTestModule.jl")
as suggested here, which is not ideal since I have to type out the full absolute path since the current directory might not be "/SomeAbsolutePath". I get the warning message Warning: replacing module ctbTestModule which sounds promising, but f1(1) still returns 2.
If I close the current Julia session, start a new one, and type in using ctbTestModule, I now get the desired behaviour, i.e. f1(1) returns 3. But obviously I want to do this without re-starting Julia.
So, what am I doing wrong?
Other details: Julia v0.2 on Ubuntu 14.04.
The basis of this problem is the confluence of reloading a module, but not being able to redefine a thing in the module Main (see the documentation here) -- that is at least until the new function workspace() was made available on July 13 2014. Recent versions of the 0.3 pre-release should have it.
Before workspace()
Consider the following simplistic module
module TstMod
export f
function f()
return 1
end
end
Then use it....
julia> using TstMod
julia> f()
1
If the function f() is changed to return 2 and the module is reloaded, f is in fact updated. But not redefined in module Main.
julia> reload("TstMod")
Warning: replacing module TstMod
julia> TstMod.f()
2
julia> f()
1
The following warnings make the problem clear
julia> using TstMod
Warning: using TstMod.f in module Main conflicts with an existing identifier.
julia> using TstMod.f
Warning: ignoring conflicting import of TstMod.f into Main
Using workspace()
However, the new function workspace() clears Main preparing it for reloading TstMod
julia> workspace()
julia> reload("TstMod")
julia> using TstMod
julia> f()
2
Also, the previous Main is stored as LastMain
julia> whos()
Base Module
Core Module
LastMain Module
Main Module
TstMod Module
ans Nothing
julia> LastMain.f()
1
Use the package Revise, e.g.
Pkg.add("Revise") # do this only once
include("src/my_module.jl")
using Revise
import my_module
You may need to start this in a new REPL session. Notice the use of import instead of using, because using does not redefine the function in the Main module (as explained by #Maciek Leks and #waTeim).
Other solutions: Two advantages of Revise.jl compared to workspace() are that (1) it is much faster, and (2) it is future-proof, as workspace() was deprecated in 0.7, as discussed in this GitHub issue:
julia> VERSION
v"0.7.0-DEV.3089"
julia> workspace()
ERROR: UndefVarError: workspace not defined
and a GitHub contributor recommended Revise.jl:
Should we add some mesage like "workspace is deprecated, check out Revise.jl instead"?
Even in Julia 0.6.3, the three previous solutions of workspace(), import, and reload fail when a module called other modules, such as DataFrames. With all three methods, I got the same error when I called that module the second time in the same REPL:
ERROR: LoadError: MethodError: all(::DataFrames.##58#59, ::Array{Any,1}) is ambiguous. Candidates: ...
I also got many warning messages such as:
WARNING: Method definition macroexpand(Module, ANY) in module Compat at /Users/mmorin/.julia/v0.6/Compat/src/Compat.jl:87 overwritten in module Compat at /Users/mmorin/.julia/v0.6/Compat/src/Compat.jl:87.
Restarting the Julia session worked, but it was cumbersome. I found this issue in the Reexport package, with a similar error message:
MethodError: all(::Reexport.##2#6, ::Array{Any,1}) is ambiguous.
and followed the suggestion of one contributor:
Does this happen without using workspace()? That function is notorious for interacting poorly with packages, which is partly why it was deprecated in 0.7.
In my humble opinion, the better way is to use import from the very beginning instead of using for the reported issue.
Consider the module:
module ModuleX1
export produce_text
produce_text() = begin
println("v1.0")
end
println("v1.0 loaded")
end
Then in REPL:
julia> import ModuleX1
v1.0 loaded
julia> ModuleX1.produce_text()
v1.0
Update the code of the module and save it:
module ModuleX1
export produce_text
produce_text() = begin
println("v2.0")
end
println("v2.0 loaded")
end
Next, in the REPL:
julia> reload("ModuleX1")
Warning: replacing module ModuleX1
v2.0 loaded
julia> ModuleX1.produce_text()
v2.0
Advantages of using import over using:
avoiding ambiguity in function calls (What to call: ModuleX1.produce_text() or produce_text() after reloading?)
do not have to call workspace() in order to get rid of ambiguity
Disadvantages of using import over using:
a fully qualified name in every call for every exported name is needed
Edited: Discarded "full access to the module, even to the not-exported names" from "Disadvantages..." according to the conversation below.
workspace() has been deprecated.
You can reload("MyModule") in an active REPL session, and it works as expected: changes made to the source file that contains MyModule are reflected in the active REPL session.
This applies to modules that have been brought into scope by either import MyModule or using MyModule
I wanted to create a new module from scratch, and tried the different answers with 1.0 and didn’t get a satisfactory result, but I found the following worked for me:
From the Julia REPL in the directory I want to use for my project I run
pkg> generate MyModule
This creates a subdirectory like the following structure:
MyModule
├── Project.toml
└── src
└── MyModule.jl
I put my module code in MyModule.jl. I change to the directory MyModule (or open it in my IDE) and add a file Scratch.jl with the following code:
using Pkg
Pkg.activate(".")
using Revise
import MyModule # or using MyModule
Then I can add my code to test below and everything updates without reloading the REPL.
I battled to get Revise.jl to work for me, probably because I also use code generation with OOPMacro #class . I had to also call revise(...) See https://timholy.github.io/Revise.jl/stable/limitations/#Limitations-1.
I have been struggling with this problem for up to 5 years and finally got something that works for me that don't involve manually running my main module in the IDE repl after EVERY SMALL CHANGE :'(
Here is some of my code I use to force a revise and exit early when running tests when there were revise errors:
# Common code I include into my test files now:
using Pkg
using Revise
# force include module
Pkg.activate("MyModule")
include("../src/MyModule.jl")
Pkg.activate("MyModule/test")
using Revise
# if there were any revise errors which means some compilation error or
# some change that requires a manual rerun or restart.
# then force you to fix it, rather that running lying tests..
for (k, e) in Revise.queue_errors
if !isnothing(e)
warn(logger, "Something went wrong while revising, you probably have a compile error in this file:")
throw(e)
end
end
module TestSomethingModule
using Revise
using MyModule
revise(MyModule)
...
# then you can call MyModule.doSomithing in a test and it actually updates
end

How to use a dependency of a module within a Play app

I am writing a Play Framework module in order to share some common logic among multiple Play apps. One of the things I would like my module to do is provide some frequently-used functionality by way of 3rd-party modules, for example the excellent Markdown module.
First of all, is it possible to do this? I want all the apps that include my module to be able to use the .markdown().raw() String extension without needing to explicitly declare the Markdown module as a dependency. The Play Framework Cookbook chapter 5 seems to imply that it is possible, unless I am reading it wrong.
Secondly, if it is possible, how does it work? I have created the following vanilla example case, but I'm still getting errors.
I created a new, empty application "myapp", and a new, empty module "mymod", both in the same parent directory. I then modified mymod/conf/dependencies.yml to:
self: mymod -> mymod 0.1
require:
- play
- play -> markdown [1.5,)
I ran play deps on mymod and it successfully downloaded and installed the Markdown module. Running play build-module also worked fine with no errors.
Then, I modified myapp/conf/dependencies.yml to:
# Application dependencies
require:
- play
- mymod -> mymod 0.1
repositories:
- Local Modules:
type: local
artifact: ${application.path}/../[module]
contains:
- mymod
I ran play deps on myapp and it successfully found mymod, and generated the myapp/modules/mymod file, containing the absolute path to mymod.
I ran myapp using play run and was able to see the welcome page on http://localhost:9000/. So far so good.
Next, I modified myapp/app/views/Application/index.html to:
#{extends 'main.html' /}
#{set title:'Home' /}
${"This is _MarkDown_, by [John Gruber](http://daringfireball.net/projects/markdown/).".markdown().raw()}
I restarted myapp, and now I get the following error.
09:03:23,425 ERROR ~
#6a6eppo46
Internal Server Error (500) for request GET /
Template execution error (In /app/views/Application/index.html around line 4)
Execution error occured in template /app/views/Application/index.html. Exception raised was MissingMethodException : No signature of method: java.lang.String.markdown() is applicable for argument types: () values: [].
play.exceptions.TemplateExecutionException: No signature of method: java.lang.String.markdown() is applicable for argument types: () values: []
at play.templates.BaseTemplate.throwException(BaseTemplate.java:86)
at play.templates.GroovyTemplate.internalRender(GroovyTemplate.java:257)
at play.templates.Template.render(Template.java:26)
at play.templates.GroovyTemplate.render(GroovyTemplate.java:187)
at play.mvc.results.RenderTemplate.<init>(RenderTemplate.java:24)
at play.mvc.Controller.renderTemplate(Controller.java:660)
at play.mvc.Controller.renderTemplate(Controller.java:640)
at play.mvc.Controller.render(Controller.java:695)
at controllers.Application.index(Application.java:13)
at play.mvc.ActionInvoker.invokeWithContinuation(ActionInvoker.java:548)
at play.mvc.ActionInvoker.invoke(ActionInvoker.java:502)
at play.mvc.ActionInvoker.invokeControllerMethod(ActionInvoker.java:478)
at play.mvc.ActionInvoker.invokeControllerMethod(ActionInvoker.java:473)
at play.mvc.ActionInvoker.invoke(ActionInvoker.java:161)
at Invocation.HTTP Request(Play!)
Caused by: groovy.lang.MissingMethodException: No signature of method: java.lang.String.markdown() is applicable for argument types: () values: []
at /app/views/Application/index.html.(line:4)
at play.templates.GroovyTemplate.internalRender(GroovyTemplate.java:232)
... 13 more
And just to confirm I'm not crazy, I tried adding the play -> markdown [1.5,) line to myapp/conf/dependencies.yml and restarted the app, and confirmed that it works.
I feel like I'm missing something obvious. Many thanks in advance to anyone who can help! :)
Yes I had the same problem, it seems that transitive dependencies through custom home made modules does not work

extra-paths not added to python path with zc.recipe.testrunner

I am trying to run tests by adding a version of tornado downloaded from github.com in the sys.path.
[tests]
recipe = zc.recipe.testrunner
extra-paths = ${buildout:directory}/parts/tornado/
defaults = ['--auto-color', '--auto-progress', '-v']
But when I run bin/tests I get the following error :
ImportError: No module named tornado
Am I not understanding how to use extra-paths ?
Martin
Have you tried looking into generated bin/tests script if it contains your path? It will tell definitely if your buildout.cfg is correct or not. Maybe problem is elsewhere. Because it seem that your code is ok.
If you happen to regularly include various branches from git/mercurial or elsewhere to buildout, you might be interested in mr.developer. mr.developer can download and add package to develop =. You wont need to set extra-path in every section.