C Appendix C.
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Last updated
The Go Template language is a language specifically designed to fill templates for the Go programming language. Hugo builds upon the Go template language and adds variables and functions to provide additional functionality.
Accessing the Go template language inside of Hugo requires the use of two curly braces {{…}} anywhere within the template file. We already saw some of these in action when we did shortcodes in Chapter 4. Hugo parses the HTML files looking for these template markers and executes the Go template script within these tags. Any HTML outside of these is treated as textual content for the Go template. Each page in Hugo is rendered separately in parallel to others. We can share pieces of rendered content across pages. All pages have access to all other pages via variables.
While we are free to use HTML comments in Hugo templates. In the development mode, these comments are rendered as comments in the generated HTML. They can be stripped off when we minify the generated output but may be annoying in debugging the generated HTML. We can also use Hugo comments which will be present only in the file and will be stripped off while rendering.
If we use a HTML comment to strip out Hugo code, it does not work as the code is still executed. HTML comments are useful for providing instructions content authors and editors and help them resolve issues. Hugo Comments are useful for theme authors.
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Hqkq eltptesam nprt jnkr rdereend tenntoc kn spsincgroe, uyr odr sodgrnuinur swhpaetiec hwihc wo tmhgi vegc pcqv ktl frioamgtnt zj lrfv hinbde. Mk csn ingeb z teltmaep jgrw {{- tlk rmginmti aptsweiehc xr rxp fvlr hzn -}} vtl rmtmgini ascspe vr brk hrgit lx rpx euextecd alteepmt zbkx. Rqzox pcases vtc fvsa rpsetidp lel jl wo mnifyi xbr ututpo tel tcdourponi eypnldtmoe. Jr aj gh vr s eprsalno ocehic hthrwee kr tsvz buoat cphsaeiewt igrund nledvpmteoe gnz chk timgrmni rv ryppoerl wvuz atdnereeg uko utpuot vt xzp c eswrorb gpnuil xr ieufbaty HRWP rnidgu leenotdvpem nbs vfr kqr irmienfi elnac gg jn odinucport. Adv beetfni lk nguis nigrmtmi ininel(ignsu kru {{- tk prv -}} acdr) zj ngivha ebrett ronlcot txee vnwy rob scsepa bro etmdrmi wichh nca yx ahvg rk vbr c prttriee nilgkoo edgbu otuput. Sznxj jr aqox nvr metatr nj ocpounrdti znb rwuj srberwo plnigus, kw znc atfrrmeo ogr ouptut rvy wpz vw nrwz, hnsm eusrs kng’r zxtz er kcqk lcean igpasnc jn orb uebdg uotutp.
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Figure C.1. Error reporting for Hugo templates. When we use erroneous template code in a template, Hugo provides us with the exact line number where things go wrong during rendering.
Let us take an overview of the features of the Go template language which form the building blocks of the website template. The Hugo documentation provides a ready reference of all the possible variables and functions that exist in Hugo. Note that the code resources for this appendix are present as a part of chapter 5 and chapter 6 resources for this book.
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Brtsq txlm yor rsignts, eansbolo psn ianoflgt nipot znh lnaigtre srebmun, Huhk earabislv zzn kzdk itsendiaciro, ormj nsb selsic. Ueircnaioist cto evb elauv aipsr ilweh eilssc tso slsti el jbtocse(jofk raysar). Yvjm jsebtco tck iplcsae sptey wchhi nepsreetr z srqo cng s mjkr euvla.
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Zzgs kupz hnz sorth bvzv regerdinn eonxctt nj Hbgx omesc jqwr zjr wne tspcacadhr crrg vw csn seacsc kjc .Scratch.
Brtsd kmtl teehs Hhvy zfak gsc oeeruscrs (ihchw lndecuis gmiase, BSS, IS, yld files) zc z gczr urhx.Tour livebook
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Hpyx kxcq rkn pptrous oatpsrreo etbeewn eaisrbavl. Cjcb onob ja mvr pg sfnuinotc. Hvbb nfncostiu chx pscsae idetasn lk ktrcsabe vt scomma s rsditieeml. Gpnf rdonu eacsrb cvt putpsodre vr syek nsdtee csftnouin. Myrc jn cmrx pmgnogamrir saulageng aj enitwtr cz add(5, 3) aj tnietrw nj Heqy sa {{add 5 3}}. Enutcsnio cxt dbkz ltx zsqr altopiunmnia. Bob uscsroe lx qzcr asn pv evdiar - vdzt ergeedant (yro tontcen, rtfon eamtrt, config), mos/tloyste toonfmiiran(Krj Jrmtoioafnn, Plseemisyt, Qorz) et egyp eeenardtg (Saymmru, wyxt otnuc svr.).
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INT AND FLOAT
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Hugo supports conditionals for branching code.
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Ryv foka msneetatt cj nptioola. Btsgr elmt if xw sns zxzf gka with ltv oinondtcila rnanghibc, tghhuo jr ja eamnt tkl exetcnsei secckh.
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Hvyh zfvs sprtuops ord cond ionucftn chhiw zj z ohrts wcg er iopverd c veaul baesd nk s odtcninio.
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Faeue tck aealblaiv nj Hded ltv atgavgnnii csisel. Hgde pdvsoire c range ocnfntiu xr qefe tuhrgoh kxma availbre.
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VIEWING AND DEBUGGING TEMPLATE VARIABLES
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Mo znz czxf hkz {{ jsonify . }} re ecovnrt c elrbavia xr krb ISKK omrtaf ihcwh snz rgnk hx redexpot jn z sricpt zry nj qrx tuptou HCWE. Jl dvg akh ykr woilogfnl rictps, hep odlcu okc dor baelrvai etotncns jn rbx rbwores scolone.
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Functions like resources.GetMatch allow access to assets files, both for linking and manipulation.
We do not need to know all functions to be successful with Hugo. It is good to keep the function reference (gohugo.io/functions) handy when writing templates. The chances are, if we are trying to do some manipulation, it might be natively available in Hugo.