I'm trying out the unidecoder gem and it's giving me problems with some strings:
require 'unidecoder'
str = "\u00A3"
str.to_ascii
#: (C:/Ruby193/lib/ruby/gems/1.9.1/gems/unidecoder-1.1.1/lib/unidecoder/data/x00.yml):
found unknown escape character while parsing a quote d scalar at line
2 column 3
from C:/Ruby193/lib/ruby/1.9.1/psych.rb:203:in parse'
from C:/Ruby193/lib/ruby/1.9.1/psych.rb:203:inparse_stream'
from C:/Ruby193/lib/ruby/1.9.1/psych.rb:151:in parse'
from C:/Ruby193/lib/ruby/1.9.1/psych.rb:127:inload'
from C:/Ruby193/lib/ruby/1.9.1/psych.rb:297:in block in load_file'
from C:/Ruby193/lib/ruby/1.9.1/psych.rb:297:inopen'
from C:/Ruby193/lib/ruby/1.9.1/psych.rb:297:in load_file'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/unidecoder-1.1.1/lib/unidecoder.rb:8:in
block in '
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/unidecoder-1.1.1/lib/unidecoder.rb:78:in
yield'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/unidecoder-1.1.1/lib/unidecoder.rb:78:in
default'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/unidecoder-1.1.1/lib/unidecoder.rb:78:in
decode_char'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/unidecoder-1.1.1/lib/unidecoder.rb:39:in
block in decode'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/unidecoder-1.1.1/lib/unidecoder.rb:37:in
gsub'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/unidecoder-1.1.1/lib/unidecoder.rb:37:in
decode'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/unidecoder-1.1.1/lib/unidecoder.rb:16:in
to_ascii'
from (irb):21
from C:/Ruby193/bin/irb:12:in'>>
What's worse, I can't catch the error by doing:
foo = str.to_ascii rescue 'x'
Does anyone know what's happening here?
rescue clause with no parameter list, the parameter defaults to StandardError; it looks like unidecoder raises kinda other exception, but the stacktrace seems to be incomplete (it should show the exception type.)
Take a look at "C:/Ruby193/lib/ruby/gems/1.9.1/gems/unidecoder-1.1.1/lib/unidecoder/data/x00.yml". Line 2 is an YAML entry - "\z"，which is not a valid escape sequence in Ruby(but a Regexp anchor to mark the end of string). This might be a bug. You can edit this line to - "\x00".
However, "\u00A3"(£) is not a valid ASCII character, I didn't find the point of encoding it to ASCII.
The exception raised is Psych::SyntaxError, you can catch that specific exception, as #mudasobwa commented.
Related
await ctx.send('Enter the channel name you want to be set as default welcome channel: ')
else:
await ctx.send('Only server moderators and owner can use this command')
the code is giving me error:
IndentationError: expected an indented block
The error isn't a DiscordError subclass.
It's only an IndentationError.
It means that your code isn't indented well.
Example
>>> if (True):
print('True')
IndentationError raised
You have to indent the statement block:
>>> if (True):
print('True')
'True'
And nothing goes wrong.
In conclusion
If your error was simply because of a wrong indentation, please fix it and accept my answer.
This is making me crazy. I'm trying to loop through email messages using ".each do |one_of|…end", but inserting one innocuous statement breaks the enumeration.
Here is an almost-stand-alone snippet. The authentication info is set up immediately preceding, as is the "require net/imap"
imap = Net::IMAP.new(IMAP_server)
imap.authenticate('LOGIN', IMAP_login, IMAP_pass)
imap.select(IMAP_folder)
[1,2,3,5].each do |mnum|
#message_ids = imap.search(['SUBJECT', 'NETGEAR R7000 Log']).each do |mnum|
puts(mnum)
msg = imap.fetch(mnum, 'BODY[TEXT]')
msg[0].values[1]['BODY[TEXT]'].each_line do |full_entry|
line = String.new(full_entry)
recType = line[/^\[.*\] /]
# recType = recType.tr('[]','')
puts recType
end
puts
puts
end
It was working (and not) when I was looping through message ID numbers, but I replaced that statement with a literal array to eliminate a potential problem source.
Running it with the ".tr" statement commented out produces expected results, lines like:
1
[DHCP IP: (192.168.1.9)]
[DoS attack: FIN Scan]
[DHCP IP: (192.168.1.8)]
[Admin login]
[Admin login failure]
[Admin login]
[DHCP IP: (192.168.1.7)]
[DHCP IP: (192.168.1.5)]
[Time synchronized with NTP server]
[Internet connected]
2
[LAN access from remote]
[LAN access from remote]
[LAN access from remote]
[UPnP set event: Public_UPNP_C3]
[UPnP set event: Public_UPNP_C3]
[UPnP set event: Public_UPNP_C3]
…
Now un-comment the ".tr" line, to remove the brackets, and it goes all the way through the first iteration, but then:
1
DHCP IP: (192.168.1.9)
DoS attack: FIN Scan
DHCP IP: (192.168.1.8)
Admin login
Admin login failure
Admin login
DHCP IP: (192.168.1.7)
DHCP IP: (192.168.1.5)
Time synchronized with NTP server
Internet connected
Traceback (most recent call last):
4: from /Users/jan/bin/MassageNetgear.rb:39:in `<main>'
3: from /Users/jan/bin/MassageNetgear.rb:39:in `each'
2: from /Users/jan/bin/MassageNetgear.rb:43:in `block in <main>'
1: from /Users/jan/bin/MassageNetgear.rb:43:in `each_line'
/Users/jan/bin/MassageNetgear.rb:45:in `block (2 levels) in <main>': undefined method `tr' for nil:NilClass (NoMethodError)
So, somehow, putting this one statement in is causing the second iteration of mnum to fail. It doesn't even print "2" for the second iteration. Line 45 in the traceback is the newly inserted statement, but it doesn't even get that far! Adding another puts as the first statement in the inner loop does nothing.
I've done this before to concatenate a bunch of emails containing router log messages, but I then modified that code, and I somehow broke it! I've cut and re-typed the problem statement, thinking there may have been invisibles in there, but I'm using BBEdit, which shows such things.
Please, point out where I'm doing something stupid!
Thanks!
nil prints as an empty string, so it's possible there is actually a last line which isn't matching the regexp and which is printing as an empty string. In that case, tr would fail since nil actually doesn't have a tr method.
You could use a conditional assignment, which will not execute the right-hand side if recType is falsy.
recType = line[/^\[.*\] /]
recType &&= recType.tr('[]','')
puts recType
Or (if you want to actually treat it as an empty string), you can simply unconditionally call to_s on it.
recType = line[/^\[.*\] /].to_s
recType = recType.tr('[]','')
puts recType
I am trying to increment the value and use in another resource dynamically in recipe but still failing to do that.
Chef::Log.info("I am in #{cookbook_name}::#{recipe_name} and current disk count #{node[:oracle][:asm][:test]}")
bash "beforeTest" do
code lazy{ echo #{node[:oracle][:asm][:test]} }
end
ruby_block "test current disk count" do
block do
node.set[:oracle][:asm][:test] = "#{node[:oracle][:asm][:test]}".to_i+1
end
end
bash "test" do
code lazy{ echo #{node[:oracle][:asm][:test]} }
end
However I'm still getting the error bellow:
NoMethodError ------------- undefined method echo' for Chef::Resource::Bash
Cookbook Trace: ---------------
/var/chef/cache/cookbooks/Oracle11G/recipes/testSplit.rb:3:in block (2 levels) in from_file'
Resource Declaration: ---------------------
# In /var/chef/cache/cookbooks/Oracle11G/recipes/testSplit.rb
1: bash "beforeTest" do
2: code lazy{
3: echo "#{node[:oracle][:asm][:test]}"
4: }
5: end
Please can you help how lazy should be used in bash? If not lazy is there any other option?
bash "beforeTest" do
code lazy { "echo #{node[:oracle][:asm][:test]}" }
end
You should quote the command for the interpolation to work; if not, ruby would search for an echo command, which is unknown in ruby context (thus the error you get in log).
Warning: lazy has to be for the whole resource attribute; something like this WON'T work:
bash "beforeTest" do
code "echo node asm test is: #{lazy { node[:oracle][:asm][:test]} }"
end
The lazy evaluation takes a block of ruby code, as decribed here
You may have a better result with the log resource like this:
log "print before" do
message lazy { "node asm test is #{node[:oracle][:asm][:test]}" }
end
I've been drilling my head solving this problem until I came up with lambda expressions. But yet just using lambda didn't help me at all. So I thought of using both lambda and lazy evaluation. Though lambda is already lazy loading, when compiling chef recipe's, the resource where you call the lambda expression is still being evaluated. So to prevent it to being evaluated (somehow), I've put it inside a lazy evaluation string.
The lambda expression
app_version = lambda{`cat version`}
then the resource block
file 'tmp/validate.version' do
user 'user'
group 'user_group'
content lazy { app_version.call }
mode '0755'
end
Hope this can help others too :) or if you have some better solution please do let me know :)
I have written a Ruby version of Erik Demaine's (MIT) docdist8.py. This is available on github as docdist-v3.rb. I faced two weird kind of situations:
1) In the function inner_product there is a block comment:
Inner product between two vectors, where vectors
are repeated as dictionaries of (word, freq) pairs.
Example : inner_product({"and":3, "of":2, "the":5},
{"and":4, "in":1, "of":1, "this":2}) = 14.0
If I wrap this with =begin and =end there is no problem, but if I wrap it with triple double-quotes """, I get errors as follows:
./docdist-v3.rb:71: syntax error, unexpected tIDENTIFIER, expecting kEND
Example : inner_product({"and":3, "of":2, "the":5},
^
./docdist-v3.rb:71: syntax error, unexpected tIDENTIFIER, expecting kEND
Example : inner_product({"and":3, "of":2, "the":5},
^
./docdist-v3.rb:72: syntax error, unexpected kIN, expecting kEND
... {"and":4, "in":1, "of":1, "this":2}) = 14.0
^
./docdist-v3.rb:72: syntax error, unexpected tIDENTIFIER, expecting kEND
... {"and":4, "in":1, "of":1, "this":2}) = 14.0
^
./docdist-v3.rb:72: syntax error, unexpected tIDENTIFIER, expecting kEND
..."and":4, "in":1, "of":1, "this":2}) = 14.0
^
Are there rules / allowed entries for """ that are different from =begin and =end?
2) When I run my program with the time command it executes in about 0.3 seconds. However, if I put require 'profile' the time it takes becomes very high in comparison - 30 seconds. Hence I don't get the correct output at all. This doesn't seem to be the case with the original Python version, where it takes only a marginal extra time to profile. How do I get the same profile run in Ruby?
Note: The two files I used to run the Ruby program are t2.bobsey.txt and t3.lewis.txt. They are available at http://ocw.mit.edu/ans7870/6/6.006/s08/lecturenotes/dd_data.htm
1) Block comments always have the form:
=begin
Comment
=end
You are actually creating a string that is never used:
"""
Not a comment
"""
# => "\nNot a comment\n"
That's why you get an error when adding another quote and that's why the syntax highlighting renders them as strings.
2) It's slower with profiler but I get identical results:
ruby docdist-v3.rb t2.bobsey.txt t3.lewis.txt
File t2.bobsey.txt:262111 lines,49785 words,3354 distinct words
File t3.lewis.txt:1015474 lines,182355 words,8530 distinct words
The distance between the documents is: 0.574160 (radians)
I have loaded a string from a html.file, and I have writen it to a yaml file with the plugin ya2yaml:
- title: 'What a wonderful day!'
body: ... # main contents here
and I will load the .yml file by YAML::parse_file method.
but "\n" in the string will cause load problems, so I tried to gsub all "\n" to "", but there is still problems, a char '0083'(I see it in the terminal) still breaks the line, and cause loading problem:
in `load': syntax error on line 32, col 6: ` </strong><br>ok ' (ArgumentError)
from /home/croplio/.rvm/rubies/ruby-1.9.2-preview3/lib/ruby/1.9.1/syck.rb:178:in `parse'
from /home/croplio/.rvm/rubies/ruby-1.9.2-preview3/lib/ruby/1.9.1/syck.rb:203:in `block in parse_file'
from /home/croplio/.rvm/rubies/ruby-1.9.2-preview3/lib/ruby/1.9.1/syck.rb:202:in `open'
So what's wrong with the yaml or the char 0083?
or how can I avoid this problem?
0083 is a unicode character 'NO BREAK HERE'.
I don't know YAML::pars, but maybe you can switch it to use unicodes or use pure ascii codes.