World: r3wp
[Core] Discuss core issues
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Andreas 19-Mar-2011 [1170] | `curl ... | hd` gives me `61 0d 62 0a 63` as desired |
Dockimbel 19-Mar-2011 [1171x4] | No conversion issues on linux: rebol --cgi --do "print 'foo p: system/ports/output set-modes p [binary: true] insert p #{0D0A}" | hd 00000000 66 6f 6f 0a 0d 0a |
Launching the script with CALL on linux (using /Core 2.7.6) shows something interesting at the end :-)) >> s: "" call/output "rebol -c test.cgi" s == 0 >> probe s foo^/^/^M | |
Ok, no it's my mistake | |
Works flawlessly on linux. | |
PeterWood 19-Mar-2011 [1175] | I came across the issue as I was trying to run REBOL/Services under Cheyenne in GCI mode. I have found that 0x0D bytes get changed to 0x0A, it doesn't matter what they are preceded or followed by. I also found that 0x0D0D gets converted to a single 0x0A. |
PeterWood 20-Mar-2011 [1176x6] | I suspect that the problem is more likely to be with 'call than REBOL in CGI mode as REBOL/Services runs as a CGI under Xitami on Windows. The problem does not occur on OS X. |
I have run a test which seems to show that the problem lies with 'call. | |
First I ran a small command line pgm: | |
Will post the results later .... | |
This is the console output from the command line pgm: C:\REBOLServicesTest>cr )haracter 13 is enclosed in the parentheses ( I then checked that the command line pgm could be successfully called with the following two lines of Ruby: puts %x{cr} print %x{cr}.dump Which gave the following output: C:\REBOLServicesTest>ruby call_test.rb )haracter 13 is enclosed in the parentheses ( Character 13 is enclosed in the parentheses (\r) I then called the command line pgm from a REBOL Console session: >> call/console "cr" Character 13 is enclosed in the parentheses ( )== 0 >> print to-binary {Character 13 is enclosed in the parentheses ( { )} #{ 43686172616374657220313320697320656E636C6F73656420696E2074686520 706172656E74686573657320280A29 } >> buffer: make string! 256 == "" >> call/output "cr" buffer == 0 >> probe buffer Character 13 is enclosed in the parentheses (^/) == "Character 13 is enclosed in the parentheses (^/)" >> print to-binary buffer #{ 43686172616374657220313320697320656E636C6F73656420696E2074686520 706172656E74686573657320280A29 } As you can see both call/console and call/output turned the 0x0D into a 0x0A. | |
I've added this to RAMBO. | |
Dockimbel 21-Mar-2011 [1182] | I concur, it's a CALL issue and not a --cgi one. I did more tests with my own CALL/OUTPUT implementation and it doesn't show any newline alteration in the binary CGI output. |
Henrik 24-Mar-2011 [1183x2] | are there known bugs where DECOMPRESS works on certain data in one OS (OSX here), but not in another (Windows XP)? |
hmm.. never mind. seems to be a memory problem. | |
Oldes 25-Mar-2011 [1185] | I guess this is a bug in R2's lexer: >> 2# == ## >> 4#foo == ##foo >> 456457#foo == #56457#foo |
Maxim 25-Mar-2011 [1186] | IMHO it should return a syntax error |
Geomol 25-Mar-2011 [1187] | That must have changed in later version. I tested such things deeply 1-2 years ago and wrote a document, that I sent to Carl. Back then I noticed: >> 2.2# ** Syntax error: Invalid "integer" -- "2.2#" , and I suggested, it should be an invalid decimal, not invalid integer. Today I get: >> 2.2# == #.2# There are many such situations. |
amacleod 27-Mar-2011 [1188] | trying to get info on a file via ftp using to long version of teh port spec as my user name is an email address: fport: [ scheme: 'FTP host: "ftp.example.com" target: %/file.txt user: "bill@ example.com" pass: "vbs" ] I can read it with "read fport" but I can not get other info from it like: print modified? fport Whats the method here? |
Gregg 27-Mar-2011 [1189] | Have you tried applying this patch? net-utils/url-parser/user-char: union net-utils/url-parser/user-char make bitset! #"@" |
GrahamC 27-Mar-2011 [1190] | many sites don't provide that information I've found |
amacleod 27-Mar-2011 [1191] | Gregg, Thanks! That works great....never saw this before! |
GrahamC 27-Mar-2011 [1192x2] | Sometimes depending on a flag you might want to call a function with a refinement or not. So: either flag [ test/refinement ][ test ] Is there a simpler way this could be done without passing a parameter? |
test/(either flag [ refinement ][none] ) looks ugly | |
PeterWood 27-Mar-2011 [1194] | It doesn't work either. |
GrahamC 27-Mar-2011 [1195x3] | no :) I was just thinking of what syntax could be used ! |
how about making a refinement of none always legal?? | |
I guess someone would say it adds unnecessary overhead | |
PeterWood 27-Mar-2011 [1198x2] | You could always add a refinement of /none in the function spec. |
I'm not sure if it would affect anyother use of none inside the function though. >> test: func [/refinement /none] [if none [print "yes"]] >> test/none yes >> | |
GrahamC 27-Mar-2011 [1200x3] | I guess so :) |
Interestingly that turns none into true | |
>> test: func [/none ][ ?? none ] >> test none: none == none >> test/none none: true == true so redefining none is not what I had in mind! | |
BrianH 27-Mar-2011 [1203x3] | APPLY. Try this: apply :test [flag] |
R2 has a mezzanine APPLY, R3 has a native one. | |
We use it a lot in R3 for wrapper functions that forward refinements to the functions they call. The names can even be different because APPLY is positional. It is a little slow in R2 for small numbers of refinements when compared to the conditional code, but really easy to use, which makes the difference. | |
GrahamC 27-Mar-2011 [1206x2] | don't understand |
how do you use 'apply for refinements? | |
Andreas 27-Mar-2011 [1208x4] | >> foo: func [a /b c] [reduce [a b c]] >> apply :foo [1] == [1 none none] >> apply :foo [1 /b 3] == [1 true 3] |
You can use any true? value, you don't have to use the refinement name. | |
>> apply :foo [1 true 3] ;; useful for computed refinement usage == [1 true 3] >> apply :foo [1 42 3] ;; probably useless, but still possible :) == [1 true 3] | |
And, of course: >> apply :foo [1 false 3] == [1 none none] | |
GrahamC 27-Mar-2011 [1212] | cute |
GrahamC 31-Mar-2011 [1213] | Is Rebol's RSA encryption still standard ? Can I use that for encrypting sensitive health data ? |
PeterWood 1-Apr-2011 [1214] | RSA is not really designed to encrypt large chunks of data. You'd be better of using AES (or Rijndael as it used to be known as is still called in REBOL). RSA is better used for exchanging passwords and "signing" documents. |
GrahamC 1-Apr-2011 [1215x4] | I need a public key encryption method though |
RSA is significantly slower than symmetric key encryption algorithms, and a single encryption or decryption operation can only process an amount of data up to the size of the RSA key. For encrypting or decrypting large amounts of data RSA is usually used in combination with symmetric key algorithms or secure checksums as follows: | |
so I would use AES to encrypt the data,and then use RSA to encrypt the AES encryption key I guess | |
trouble is I've not had any luck with decrypting stuff encrypted by Rebol with AES by other AES decryption tools | |
PeterWood 1-Apr-2011 [1219] | Yes you would use AES to encrypt the data and then RSA to encrypt and send somebody the encryption key. |
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