currently I am working on comparison between SICStus3 and SICStus4 but I got one issue that is SICStus4 will not consult any cases where the comment string has carriage controls or tab characters etc as given below.
Example case as given below.It has 3 arguments with comma delimiter.
case('pr_ua_sfochi',"
Response:
answer(amount(2370.09,usd),[[01AUG06SFO UA CHI Q9.30 1085.58FUA2SFS UA SFO Q9.30 1085.58FUA2SFS NUC2189.76END ROE1.0 XT USD 180.33 ZPSFOCHI 164.23US6.60ZP5.00AY XF4.50SFO4.5]],amount(2189.76,usd),amount(2189.76,usd),amount(180.33,usd),[[fua2sfs,fua2sfs]],amount(6.6,usd),amount(4.5,usd),amount(0.0,usd),amount(18.6,usd),lasttktdate([20061002]),lastdateafterres(200712282]),[[fic_ticketinfo(fare(fua2sfs),fic([]),nvb([]),nva([]),tktiss([]),penalty([]),tktendorsement([]),tourinfo([]),infomsgs([])),fic_ticketinfo(fare(fua2sfs),fic([]),nvb([]),nva([]),tktiss([]),penalty([]),tktendorsement([]),tourinfo([]),infomsgs([]))]],<>,<>,cat35(cat35info([])))
.
02/20/2006 17:05:10 Transaction 35 served by static.static.server1 (usclsefat002:7551) running E*Fare version $Name: build-2006-02-19-1900 $
",price(pnr(
user('atl','1y',<>,<>,dept(<>,'0005300'),<>,<>,<>),
[
passenger(adt,1,[ptconly(n)])
],
[
segment(1,sfo,chi,'ua','<>','100',20140901,0800,f,20140901,2100,'737',res(20140628,1316),hk,pf2(n,[],[],n),<>,flags(no,no,no,no,no,no,no,no,no)),
segment(2,chi,sfo,'ua','<>','101',20140906,1000,f,20140906,1400,'737',res(20140628,1316),hk,pf2(n,[],[],n),<>,flags(no,no,no,no,no,no,no,no,no))
]),[
rebook(n),
ticket(20140301,131659),
dbaccess(20140301,131659),
platingcarrier('ua'),
tax_exempt([]),
trapparm("trap:ffil"),
city(y)
])).
The below predicate will remove comment section in above case.
flatten-cases :-
getmessage(M1),
write_flattened_case(M1),
flatten-cases.
flatten-cases.
write_flattened_case(M1):-
M1 = case(Case,_Comment,Entry),!,
M2 = case(Case,Entry),
writeq(M2),write('.'),nl.
getmessage(M) :-
read(M),
!,
M \== end_of_file.
:- flatten-cases.
Now my requirement is to convert the comment string to an ASCII character list.
Layout characters other than a regular space cannot occur literally in a quoted atom or a double quoted list. This is a requirement of the ISO standard and is fully implemented in SICStus since 3.9.0 invoking SICStus 3 with the option --iso. Since SICStus 4 only ISO syntax is supported.
You need to insert \n and \t accordingly. So instead of
log('Response:
yes'). % BAD!
Now write
log('Response:\n\tyes').
Or, to make it better readable use a continuation escape sequence:
log('Response:\n\
\tyes').
Note that using literal tabs and literal newlines is highly problematic. On a printout you do not see them! Think of 'A \nB' which would not show the trailing spaces nor trailing tabs.
But there are also many other situations like: Making a screenshot of program text, making a photo of program text, using a 3270 terminal emulator and copying the output. In the past, punched cards. The text-mode when reading files (which was originally motivated by punched cards). Similar arguments hold for the tabulator which comes from typewriters with their manually settable tab stops.
And then on SO it is quite difficult to type in a TAB. The browser refuses to type it (very wisely), and if you copy it in, you get it rendered as spaces.
If I am at it, there is also another problem. The name flatten-case should rather be written flatten_case.
I am new to the world of Adobe InDesign and IDML file format. I am trying to understand the IDML file format so that I can create IDML files dynamically through code!
I am going through the IDML File format specification and have found references to "Mojikumi Tables" and "Kinsoku Tables" and "Aki". Though the documentation defines various attributes for these elements, there's no clear explanation what these elements actually are.
Any pointers or links to relevant articles would be really helpful.
Thanks.
These are all additional typography settings used in laying out Japanese text.
Kinsoku: A rule set in the Japanese language that is used to determine characters that are not permitted at the beginning or end of a line. Reference.
Mojikumi: Determines spacing between punctuation, symbols, numbers, and other character classes in Japanese type. Reference.
Aki: Means space in Japanese:
"When the glyphs that correspond to characters of different character
classes come together in a run of text, there is spacing behaviour. In
other words, extra space, measured using a fraction of an em, is
introduced depending on which two character classes are in proximity*.
Typical values are one-fourth and one-half of an em"
(Footnote: * 'In Japanese this space is referred to as aki, which simply means
"space"')
Reference and source for this quote.
Here's a link to a book that should provide more information: CJKV Information Processing, 2nd Edition
Can the 'class' attribute of HTML5 elements contain line breaks? Is it allowable in the specs and do browsers support it?
I ask because I have some code that dynamically inserts various classes into the element and this has created one very long line that is hard to manage. Normally I would build the class value using a variable but the CMS I'm using requires the template conditional tags to be positioned inline with the HTML. I can't use variables or PHP.
What I found in my research is that some HTML tag attributes need to be a single line, but I haven't been able to discover if the class attribute is one of those.
Does anyone know something about this?
Per the HTML 4 spec, the class attribute is CDATA:
User agents should interpret attribute values as follows:
o Replace character entities with characters
o Ignore line feeds
o Replace each carriage return or tab with a single space.
so you're in good shape there.
The HTML5 spec describes a class as a set of space separated tokens, where a 'space' includes newlines.
So you should be good there, too.
Can the [class] attribute of HTML5 elements contain line breaks?
Yes. The HTML5 spec says:
The attribute, if specified, must have a value that is a set of space-separated tokens representing the various classes that the element belongs to.
The link proceeds to say:
A set of space-separated tokens is a string containing zero or more words (known as tokens) separated by one or more space characters, where words consist of any string of one or more characters, none of which are space characters.
And space characters include:
space (' ')
tab (\t)
line feed (\n)
form feed (\f)
carriage return (\r)
The space characters, for the purposes of this specification, are U+0020 SPACE, "tab" (U+0009), "LF" (U+000A), "FF" (U+000C), and "CR" (U+000D).
Newlines as you would add to UTF-8 documents are:
line feeds (\n)
carriage returns (\r)
a carriage return followed immediately by a line feed (\r\n)
When I am trying to paste the character » (right double angle quotes) in Unix from my Notepad, it's converting to /273. The corresponding Hex value is BB and the Decimal value is 187.
My actual requirement is to have this character as the file delimiter when I export a .dat file from a database table. So, this character was put in as the delimiter after each column name. But, while copy-pasting, it's getting converted to /273.
Any idea about how to fix this? I am on Solaris (SunOS 5.10).
Thanks,
Visakh
ASCII only defines the character codes up to 127 (0x7F) - everything after that is another encoding, such as ISO-8859-1 or UTF-8. Make sure your locale is set to the encoding you are trying to use - the locale command will report your current locale settings, the locale(5) and environ(5) man pages cover how to set them. A much more in-depth introduction to the whole character encoding concept can be found in Joel Spolsky's The Absolute Minimum Every Software Developer Absolutely, Positively Must Know About Unicode and Character Sets (No Excuses!)
The character code 0xBB is shown as » in the IS0-8859-1 character chart, so that's probably the character set you want, so the locale would be something like en_US.ISO8859-1 for that character set with US/English messages/date formats/currency settings/etc.
Many languages allow one to pass an array of values through the url. I need to , for various reasons, directly construct the url by hand. How is an array of values urlencoded?
It looks like the content in the form of MIME-Type: application/x-www-form-urlencoded.
This is the default content type. Forms submitted with this content type must be encoded as follows:
Control names and values are escaped. Space characters are replaced by +, and then reserved characters are escaped as described in [RFC1738], section 2.2: Non-alphanumeric characters are replaced by %HH, a percent sign and two hexadecimal digits representing the ASCII code of the character. Line breaks are represented as "CR LF" pairs (i.e., %0D%0A).
The control names/values are listed in the order they appear in the document. The name is separated from the value by = and name/value pairs are separated from each other by &.
Which is used for the POST. To do it for the GET, you'll have to append a ? after your URL, and the rest is almost equal. In the comments, mdma states, that the URL may not contain a + for a space character. Instead use %20.
So an array of values:
http://localhost/someapp/?0=zero&1=valueone%20withspace&2=etc&3=etc
Often there is some functionality in libraries that will do the URL encoding for you (point 1). Point two is easily implementable by looping over your array, building the string, appending the index, =, the URL encoded value and when it's not the last entry an &.