On Saturday, November 5, 2016 at 3:51:55 PM UTC-4, Tong Sun wrote: > > > On Saturday, November 5, 2016 at 3:42:27 PM UTC-4, Tong Sun wrote: >> >> >> On Sat, Nov 5, 2016 at 12:26 PM, Sam Whited wrote: >> >>> On Fri, Nov 4, 2016 at 4:32 PM, Tong Sun wrote: >>> > How to beautify a given XML string in GO?... >> >> I guess such thing doesn't exist, but let me ask away anyway -- the >> following is exactly what I was looking for, couldn't express better than >> his: >> >> from http://stackoverflow.com/questions/21117161: >> >> I like this solution, but am still in search of a Golang XML >>> formatter/prettyprinter that doesn't rewrite the document (other than >>> formatting whitespace). Marshalling or using the Encoder will change >>> namespace declarations. For example an element like "<ns1:Element/>" will >>> be translated to something like '<Element xmlns="ns1"></Element>' which >>> seems harmless enough except when the intent is to not alter the xml other >>> than formatting. – James McGill >>> <http://stackoverflow.com/users/4979966/james-mcgill> Nov 12 '15 >>> <http://stackoverflow.com/questions/21117161/go-how-would-you-pretty-print-prettify-html#comment55137594_27141132> >> >> >> Using Sam's above code as an example, >> >> https://play.golang.org/p/JUqQY3WpW5 >> >> The above code format the following XML >> >> <soapenv:Envelope xmlns:soapenv=" >> http://schemas.xmlsoap.org/soap/envelope/"; >> xmlns:ns="http://example.com/ns";> >> <soapenv:Header/> >> <soapenv:Body> >> <ns:request> >> <ns:customer> >> <ns:id>123</ns:id> >> <ns:name type="NCHZ">John Brown</ns:name> >> </ns:customer> >> </ns:request> >> </soapenv:Body> >> </soapenv:Envelope> >> >> >> into this: >> >> <Envelope xmlns="http://schemas.xmlsoap.org/soap/envelope/"; >> xmlns:_xmlns="xmlns" _xmlns:soapenv=" >> http://schemas.xmlsoap.org/soap/envelope/"; _xmlns:ns=" >> http://example.com/ns";> >> <Header xmlns="http://schemas.xmlsoap.org/soap/envelope/";></Header> >> <Body xmlns="http://schemas.xmlsoap.org/soap/envelope/";> >> <request xmlns="http://example.com/ns";> >> <customer xmlns="http://example.com/ns";> >> <id xmlns="http://example.com/ns";>123</id> >> <name xmlns="http://example.com/ns"; type="NCHZ">John Brown</name> >> </customer> >> </request> >> </Body> >> </Envelope> >> >> >> I know they are the same in syntax, however they look totally different. >> >> Any way (e.g., to tweak encoding/xml) to make the beautified string look >> closer to the original? >> > > FTR, trying to look into that direction myself, > > The dark voodoo regexp as described here works for many cases. > http://www.perlmonks.org/?node_id=261292 > > $ echo '<root><this><is>a</is><test /><message><org><cn>Some > org-or-other</cn><ph>Wouldnt you like to > know</ph></org><contact><fn>Pat</fn><ln>Califia</ln></contact></message></this></root>' > > | perl -pe 's/(?<=>)\s+(?=<)//g; > s(<(/?)([^/>]+)(/?)>\s*(?=(</?))?)($indent+=$3?0:$1?-1:1;"<$1$2$3>".($1&&($4 > eq"</")?"\n".(" "x$indent):$4?"\n".(" "x$indent):""))ge' > <root> > <this> > <is>a</is> > <test /> > <message> > <org> > <cn>Some org-or-other</cn> > <ph>Wouldnt you like to know</ph> > </org> > <contact> > <fn>Pat</fn> > <ln>Califia</ln> > </contact> > </message> > </this> > </root> > > > $ echo '<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/ > envelope/" > xmlns:ns="http://example.com/ns";><soapenv:Header/><soapenv:Body><ns:request><ns:customer><ns:id>123</ns:id><ns:name > > type="NCHZ">John > Brown</ns:name></ns:customer></ns:request></soapenv:Body></soapenv:Envelope>' > | perl -pe 's/(?<=>)\s+(?=<)//g; > s(<(/?)([^/>]+)(/?)>\s*(?=(</?))?)($indent+=$3?0:$1?-1:1;"<$1$2$3>".($1&&($4 > eq"</")?"\n".(" "x$indent):$4?"\n".(" "x$indent):""))ge' > <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/ > " xmlns:ns="http://example.com/ns";><soapenv:Header/> > <soapenv:Body> > <ns:request> > <ns:customer> > <ns:id>123</ns:id> > <ns:name type="NCHZ">John Brown</ns:name> > </ns:customer> > </ns:request> > </soapenv:Body> > </soapenv:Envelope> > > But I did found its own limits when trying more samples... >
Well, despite all the odds and the common believes, I *got it working*. After all, XML is much more structured than HTML. Here is what it was previously: $ echo '<Envelope xmlns=http://schemas.xmlsoap.org/soap/envelope/ xmlns:_xmlns=xmlns _xmlns:soapenv=http://schemas.xmlsoap.org/soap/envelope/ _xmlns:ns=http://example.com/ns><Header xmlns=http://schemas.xmlsoap.org/soap/envelope/></Header><Body xmlns=http://schemas.xmlsoap.org/soap/envelope/><request xmlns=http://example.com/ns><customer xmlns=http://example.com/ns><id xmlns=http://example.com/ns>123</id><name xmlns=http://example.com/ns type=NCHZ>John Brown</name></customer></request></Body></Envelope>' | perl -pe 's/(?<=>)\s+(?=<)//g; s(<(/?)([^/>]+)(/?)>\s*(?=(</?))?)($indent+=$3?0:$1?-1:1;"<$1$2$3>".($1&&($4 eq"</")?"\n".(" "x$indent):$4?"\n".(" "x$indent):""))ge' <Envelope xmlns=http://schemas.xmlsoap.org/soap/envelope/ xmlns:_xmlns=xmlns _xmlns:soapenv=http://schemas.xmlsoap.org/soap/envelope/ _xmlns:ns= http://example.com/ns><Header xmlns=http://schemas.xmlsoap.org/soap/envelope /></Header> <Body xmlns=http://schemas.xmlsoap.org/soap/envelope/><request xmlns= http://example.com/ns><customer xmlns=http://example.com/ns><id xmlns= http://example.com/ns>123</id> <name xmlns=http://example.com/ns type=NCHZ>John Brown</name> </customer> </request> </Body> </Envelope> After simplified the algorithm, it became the following, and I'm *quite happy* with its look. I believe it'd be much faster than any XML decode/encode route. *Starting to convert the algorithm into Go code*... $ echo '<Envelope xmlns=http://schemas.xmlsoap.org/soap/envelope/ xmlns:_xmlns=xmlns _xmlns:soapenv=http://schemas.xmlsoap.org/soap/envelope/ _xmlns:ns=http://example.com/ns><Header xmlns=http://schemas.xmlsoap.org/soap/envelope/></Header><Body xmlns=http://schemas.xmlsoap.org/soap/envelope/><request xmlns=http://example.com/ns><customer xmlns=http://example.com/ns><id xmlns=http://example.com/ns>123</id><name xmlns=http://example.com/ns type=NCHZ>John Brown</name></customer></request></Body></Envelope>' | perl -pe 's/(?<=>)\s+(?=<)//g; s(<(/?)([^>]+)(/?)>)($indent+=$3?0:$1?-1:1;"<$1$2$3>"."\n".(" "x$indent))ge' <Envelope xmlns=http://schemas.xmlsoap.org/soap/envelope/ xmlns:_xmlns=xmlns _xmlns:soapenv=http://schemas.xmlsoap.org/soap/envelope/ _xmlns:ns= http://example.com/ns> <Header xmlns=http://schemas.xmlsoap.org/soap/envelope/> </Header> <Body xmlns=http://schemas.xmlsoap.org/soap/envelope/> <request xmlns=http://example.com/ns> <customer xmlns=http://example.com/ns> <id xmlns=http://example.com/ns> 123</id> <name xmlns=http://example.com/ns type=NCHZ> John Brown</name> </customer> </request> </Body> </Envelope> -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
