....................................../////.===Shadow-Here===./////................................................ > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < ------------------------------------------------------------------------------------------------------------------- /////////////////////////////////////////////////////////////////////////////////////////////////////////////////// RIFF¤ WEBPVP8 ˜ ðÑ *ôô>‘HŸK¥¤"§£±¨àð enü¹%½_F‘åè¿2ºQú³íªú`N¿­3ÿƒügµJžaÿ¯ÿ°~¼ÎùnúîÞÖô•òíôÁÉß®Sm¥Ü/ ‡ó˜f£Ùà<˜„xëJ¢Ù€SO3x<ªÔ©4¿+ç¶A`q@Ì“Úñè™ÍÿJÌ´ª-˜ÆtÊÛL]Ïq*‘Ý”ì#ŸÌÏãY]@ê`¿ /ªfkØB4·®£ó z—Üw¥Pxù–ÞLШKÇN¾AkÙTf½è'‰g gÆv›Øuh~ a˜Z— ïj*á¥t d£“uÒ ¨`K˜¹ßþ]b>˜]_ÏÔ6W—è2r4x•íÖ…"ƒÖNîä!¦å Ú}ýxGøÌ —@ ;ÆÚŠ=ɾ1ý8lªË¥ô ^yf®Œ¢u&2©nÙÇ›ñÂñŒ³ aPo['½»øFùà­+4ê“$!lövlüÞ=;N®3ð‚õ›DÉKòÞ>ÄÍ ¥ˆuߤ#ˆ$6ù™¥îŠ‡y’ÍB¼ çxÛ;X"WL£R÷͝*ó-¶Zu}º.s¸sšXqù–DþÿvªhüïwyŸ ¯é³lÀ:KCûÄ£Ëá\…­ ~—ýóî ¼ûûÜTÓüÇy…ŽÆvc»¾×U ñ¸žþоP÷¦ó:Ò¨¨5;Ð#&#ÖúñläÿÁœ GxÉ­/ñ‡áQðìYÉtÒwŽ¼GÔ´zàÒò ð*ëzƒ•4~H]Ø‹f ñÓÈñ`NåWçs'ÆÏW^ø¹!XžµmQ5ÃËoLœÎ: ÞËÍ¥J ù…î èo£ßPÎñ¶ž8.Œ]ʵ~5›ÙË-ù*8ÙÖß±~ ©¹rÓê‚j¶d¸{^Q'˜±Crß ÚH—#¥¥QlÀ×ëã‡DÜ«èî þ&Çæžî;ŽÏºò6ÒLÃXy&ZŒ'j‚¢Ù€IßÚù+–MGi‰*jE€‘JcÜ ÓÌ EÏÚj]o˜ Þr <¾U ûŪæÍ/šÝH¥˜b”¼ ÁñßX GP›ï2›4WŠÏà×£…íÓk†¦H·ÅíMh–*nó÷à]ÁjCº€b7<ب‹¨5車bp2:Á[UªM„QŒçiNMa#<5›áËó¸HýÊ"…×Éw¹¦ì2º–x<›»a±¸3Weü®FÝ⑱ö–î–³|LPÈ~çð~Çå‡|º kD¢µÏàÆAI %1À% ¹Ò – ”ϝS¦‰4&¶£°à Öý”û_Ò Áw°A«Å€?mÇÛgHÉ/8)á¾ÛìáöŽP í¨PŸNÙµº¦‡§Ùš"ÿ«>+ªÕ`Ê÷‡‚ß Õû˜þãÇ-PÍ.¾XV‘€ dÜ"þ4¹ ±Oú‘©t¥¦FªÄÃÄ•b‚znýu½—#cDs˜ÃiÑOˆñ×QO=*IAÊ,¶ŽZƒ;‡wøXè%EÐk:F±Ú” .Ѽ+Áu&Ç`."pÈÉw o&¿dE6‘’EqTuK@Ì¥ã™À(Êk(h‰,H}RÀIXÛš3µ1©_OqÚÒJAñ$ÊÙÜ;D3çŒ[þùœh¬Ã³™ö6ç†NY".Ú‰ï[ªŸŒ '²Ð öø_¨ÂÉ9u鶳ÒŠõTàîMØ#û¯gN‡bÙ놚X„ö …ÉeüÌ^J ‹€.œ$Æ)βÄeæW#óüßĺŸ€ ÀzwV 9oä»f4V*uB «Ë†¹ì¯žR霓æHXa=&“I4K;¯ç‹h×·"UŠ~<•â•ªVêª&ÍSÃÆÅ?ÔqÎ*mTM ˜›µwêd#[C¡©§‘D<©àb†–ÁœøvH/,í:¯( ²£|4-„Æövv„Yͼ™^Á$ˆ„¢Û[6yB.åH*V¨æ?$=˜Ñ€•î¦ñ·­(VlŸ‘ nÀt8W÷´Bûba?q9ú¶Xƒl«ÿ\ù¶’þòUÐj/õ¢Ìµ³g$ƒÎR!¸»|Oߍë’BhîÚÑ¢ñåŒJ„®„£2Ð3•ô02Nt…!£Í]Ïc½Qÿ?ˆ<&ÃA¾Ú,JˆijÌ#5yz„‰Î|ÊŽ5QÏ:‹ÐaóVÔxW—CpeÏzÐïíçôÿÅ_[hãsÐ_/ŽTÝ?BîˆííV$<¿i>²F¬_Eß¿ †bÊŒº­ÿ®Z H“C}”¬,Mp ý/Bá£w>˜YV°aƒúh+cŠ- r/[%|üUMHäQ°X»|û/@|°¥Ð !BÔ Ç¢Ä©š+Õì D«7ìN¶ŽðÔ " ƶ’ÖçtA‰Û×}{tþz­¾GÍ›k¹OEJR$ Â׃ «ëÁ"oÉôž$oUK(Ä)Ãz³Ê-‹êN[Ò3Œñbï8P 4ƒ×q¢bo|?<ÛX¬òÄÍ°L–±›(™ûG?ýË©ÚÄ–ÂDØÐ_Ç¡ô ¾–ÄÏø ×e8Ë©$ÄF¹Å‹ì[©óìl:F¾f´‹‹Xì²ï®\¬ôùƒ ÿat¥óèÒùHß0äe‚;ü×h:ÆWðHž=Ã8骣"kœ'Y?³}Tûè€>?0l›e1Lòñ„aæKÆw…hÖŠùW…ÈÆÄ0ši·›[pcwËþñiêíY/~-Á5˜!¿†A›™Mÿþ(±“t@â“ö2­´TG5yé]çå僳 .·ÍïçÝ7UÚ±Ð/Nè»,_Ï ùdj7\ï Wì4›„»c¸àešg#ÒÊ⥭áØo5‘?ÌdÝô¯ ¹kzsƒ=´#ëÉK›Ø´±-¥eW?‡çßtòTã…$Ý+qÿ±ƒ÷_3Ô¥í÷:æ–ž<·Ö‡‰Å¢ š‡%Ô—utÌÈìðžgÖÀz²À—ï÷Óîäõ{K'´È÷³yaÏÁjƒô}ž§®æÊydÕÈë5¯èˆõvÕ©ã*çD„ “z„Ó‡^^xÂ3M§A´JG‚öï 3W'ˆ.OvXè¡ÊÕª?5º7†˜(˜Ç¶#çê’¶!ÌdZK§æ 0fãaN]òY³RV ™î$®K2R¨`W!1Ôó\;Ý ýB%qæK•&ÓÈe9È0êI±žeŸß -ú@žQr¦ ö4»M¼Áè¹µmw 9 EÆE_°2ó„ŸXKWÁ×Hóì^´²GѝF©óäR†¦‰ç"V»eØ<3ùd3ÿÚ¤Žú“Gi" —‘_ÙËÎ~Üö¯¥½Î»üŸEÚŽåmÞþí ;ÞólËΦMzA"Âf(´òá;Éï(/7½ûñÌ­cïÕçлþÝz¾-ÍvÑ“pH­–ðÓj$¸Äû¤‚‘ãUBË-n“2åPkS5&‹Â|+g^œ®Ì͆d!OïäîU«c;{Û!ÅŽ«ëZ9Ókóˆ]¯ƒ›né `ÇÒ+tÆš (ØKá¾—=3œ®•vuMñg²\ï Ec€ 05±d™‡×iÇ×›UúvÌ¢£Èþ¡ÕØô¶ßÎA"ß±#Ö²ˆÊŸ¦*Ä~ij|àø.-¼'»Ú¥£h ofº¦‡VsR=N½„Î v˜Z*SÌ{=jÑB‹tê…;’HžH¯8–îDù8ñ¢|Q•bÛçš–‹m³“ê¨ åÏ^m¬Žãþ©ïêO‡½6] µÆ„Ooòü ²x}N¦Ë3ïé¿»€›HA˜m%çÞ/¿í7Fø“‹léUk)É°Œµ8Q8›:ÀŠeT*šõ~ôڝG6 ¢}`ùH­–”¡k ‰P1>š†®9z11!X wKfmÁ¦xÑ,N1Q”–æB¶M…ÒÃv6SMˆhU¬ÊPŽï‘öj=·CŒ¯u¹ƒVIЃsx4’ömÛýc塶7ßŠß 57^\wÒÐÆ k§h,Œý î«q^R½3]J¸ÇðN ‚çU¬ôº^Áì} ³f©Õœ§ˆã:FÄÈ‚é(€™?àýÓüè1Gô£¼éj‚OÅñ  #>×—ßtà 0G¥Åa뀐kßhc™À_ÉñÞ#±)GD" YîäË-ÿÙ̪ ¹™a¯´¢E\ÝÒö‚;™„ë]_ p8‰o¡ñ+^÷ 3‘'dT4œŽ ðVë½° :¬víÑ«£tßÚS-3¶“þ2 †üüʨòrš¹M{É_¤`Û¨0ìjœøJ‡:÷ÃáZ˜†@GP&œÑDGÏs¡þ¦þDGú‘1Yá9Ôþ¼ ûø…§÷8&–ÜÑnÄ_m®^üÆ`;ÉVÁJ£?â€-ßê}suÍ2sõA NÌúA磸‘îÿÚ»ƒìö·á¿±tÑÐ"Tÿü˜[@/äj¬€uüªìù¥Ý˜á8Ý´sõj 8@rˆð äþZÇD®ÿUÏ2ùôõrBzÆÏÞž>Ì™xœ“ wiÎ×7_… ¸ \#€MɁV¶¥üÕÿPÔ9Z‡ø§É8#H:ƒ5ÀÝå9ÍIŒ5åKÙŠ÷qÄ>1AÈøžj"µÂд/ªnÀ qªã}"iŸBå˜ÓÛŽ¦…&ݧ;G@—³b¯“•"´4í¨ôM¨åñC‹ïùÉó¯ÓsSH2Ý@ßáM‡ˆKÀªÛUeø/4\gnm¥‹ŸŒ qÄ b9ÞwÒNÏ_4Ég³ú=܆‚´ •â¥õeíþkjz>éÚyU«Íӝ݃6"8/ø{=Ô¢»G¥ äUw°W«,ô—¿ãㆅү¢³xŠUû™yŒ (øSópÐ 9\åTâ»—*oG$/×ÍT†Y¿1¤Þ¢_‡ ¼ „±ÍçèSaÓ 3ÛMÁBkxs‰’R/¡¤ˆÙçª(*õ„üXÌ´ƒ E§´¬EF"Ù”R/ÐNyÆÂ^°?™6¡œïJ·±$§?º>ÖüœcNÌù¯G ‹ñ2ŠBB„^·úìaz¨k:#¨Æ¨8LÎõލ£^§S&cŒÐU€ü(‡F±Š¼&P>8ÙÁ ‰ p5?0ÊƃZl¸aô š¼¡}gÿ¶zÆC²¹¬ÎÖG*HB¡O<º2#ñŒAƒ–¡B˜´É$¥›É:FÀÔx¾u?XÜÏÓvN©RS{2ʈãk9rmP¼Qq̳ è¼ÐFׄ^¡Öì fE“F4A…!ì/…¦Lƒ… … $%´¾yã@CI¬ á—3PþBÏNÿ<ý°4Ü ËÃ#ØÍ~âW«rEñw‹eùMMHß²`¬Öó½íf³:‹k˜¯÷}Z!ã¿<¥,\#öµÀ¯aÒNÆIé,Ћ–lŽ#Àæ9ÀÒS·I’½-Ïp Äz¤Š Â* ­íÄ9­< h>׍3ZkËU¹§˜ŒŠ±f­’¤º³Q ÏB?‹#µíÃ¥®@(Gs«†vI¥Mµ‹Á©e~2ú³ÁP4ìÕi‚²Ê^ö@-DþÓàlÜOÍ]n"µã:žpsŽ¢:! Aõ.ç~ÓBûH÷JCÌ]õVƒd «ú´QÙEA–¯¯Œ!.ˆˆëQ±ù œ·Ì!Õâ )ùL„ÅÀlÚè5@B…o´Æ¸XÓ&Û…O«˜”_#‡ƒ„ûÈt!¤ÁÏ›ÎÝŠ?c9 â\>lÓÁVÄÑ™£eØY]:fÝ–—ù+p{™ðè û³”g±OƒÚSù£áÁÊ„ä,ï7š²G ÕÌBk)~ÑiCµ|h#u¤¶îK¨² #²vݯGãeÖ϶ú…¾múÀ¶þÔñ‚Š9'^($¤§ò “š½{éúp÷J›ušS¹áªCÂubÃH9™D™/ZöØÁ‡¦ÝÙŸ·kð*_”.C‹{áXó€‡c¡c€§/šò/&éš÷,àéJþ‰X›fµ“C¨œ®r¬"kL‰Â_q…Z–.ÉL~O µ›zn‚¹À¦Öª7\àHµšÖ %»ÇníV[¥*Õ;ƒ#½¾HK-ÖIÊdÏEÚ#=o÷Óò³´Š: Ç?{¾+9›–‘OEáU·S€˜j"ÄaÜ ŒÛWt› á–c#a»pÔZÞdŽtWê=9éöÊ¢µ~ ë ;Öe‡Œ®:bî3±ýê¢wà¼îpêñ¹¾4 zc¾ðÖÿzdêŒÑÒŝÀ‰s6¤í³ÎÙB¿OZ”+F¤á‡3@Ñëäg©·Ž ˆèª<ù@É{&S„œÕúÀA)‰h:YÀ5^ÂÓŒ°õäU\ ùËÍû#²?Xe¬tu‰^zÒÔãë¼ÛWtEtû …‚g¶Úüâî*moGè¨7%u!]PhÏd™Ý%Îx: VÒ¦ôÊD3ÀŽKÛËãvÆî…N¯ä>Eró–ð`5 Œ%u5XkñÌ*NU%¶áœÊ:Qÿú»“úzyÏ6å-၇¾ ´ ÒÊ]y žO‘w2Äøæ…H’²f±ÎÇ.ª|¥'gîV•Ü .̘¯€šòü¤U~Ù†*¢!?ò wý,}´°ÔÞnïoKq5µb!áÓ3"vAßH¡³¡·G(ÐÎ0Îò¼MG!/ài®@—¬04*`…«é8ªøøló“ˆÊ”èù¤…ßÊoÿé'ËuÌÖ5×È¡§ˆˆfŽë9}hìâ_!!¯  B&Ëö¶‰ÀAÙNVŸ Wh›¸®XÑJì¨ú“¿÷3uj²˜¨ÍÎìë±aúŠÝå¯ð*Ó¨ôJ“yºØ)m°WýOè68†ŸÏ2—‰Ïüꪫٚ¥‹l1 ø ÏÄFjêµvÌbü¦èÝx:X±¢H=MÐß—,ˆÉÇ´(9ú¾^ÅÚ4¿m‡$âX‘å%(AlZo@½¨UOÌÕ”1ø¸jÎÀÃÃ_ µ‘Ü.œº¦Ut: Æï’!=¯uwû#,“pþÇúŒø(é@?³ü¥‘Mo §—s@Œ#)§ŒùkL}NOÆêA›¸~r½¼ÙA—HJ«eˆÖ´*¡ÓpÌŸö.m<-"³ûÈ$¬_6­åf£ïÚâj1y§ÕJ½@dÞÁr&Í\Z%D£Íñ·AZ Û³øüd/ªAi†/Й~  ‡âĮҮÏh§°b—›Û«mJžòG'[ÈYýŒ¦9psl ýÁ ®±f¦x,‰½tN ‚Xª9 ÙÖH.«Lo0×?͹m¡å†Ѽ+›2ƒF ±Ê8 7Hցϓ²Æ–m9…òŸï]Â1äN†VLâCˆU .ÿ‰Ts +ÅÎx(%¦u]6AF Š ØF鈄‘ |¢¶c±soŒ/t[a¾–û:s·`i햍ê›ËchÈ…8ßÀUÜewŒðNOƒõD%q#éû\9¤x¹&UE×G¥ Í—™$ð E6-‡¼!ýpãÔM˜ Âsìe¯ñµK¢Ç¡ùôléœ4Ö£”À Š®Ðc ^¨À}ÙËŸ§›ºê{ÊuÉC ×Sr€¤’fÉ*j!úÓ’Gsùìoîßîn%ò· àc Wp÷$¨˜)û»H ×8ŽÒ€Zj¤3ÀÙºY'Ql¦py{-6íÔCeiØp‘‡XÊîÆUߢ܂ž£Xé¼Y8þ©ëgñß}é.ÎógÒ„ÃØËø¯»™§Xýy M%@NŠ À(~áÐvu7&•,Ù˜ó€uP‡^^®=_E„jt’ 403WebShell
403Webshell
Server IP : 198.54.126.4  /  Your IP : 216.73.216.22
Web Server : Apache
System : Linux host55.registrar-servers.com 4.18.0-513.18.1.lve.2.el8.x86_64 #1 SMP Sat Mar 30 15:36:11 UTC 2024 x86_64
User : aeaw ( 7508)
PHP Version : 8.1.33
Disable Function : NONE
MySQL : OFF  |  cURL : ON  |  WGET : ON  |  Perl : ON  |  Python : ON  |  Sudo : OFF  |  Pkexec : OFF
Directory :  /home/aeaw/www/node_modules/coa/

Upload File :
current_dir [ Writeable ] document_root [ Writeable ]

 

Command :

[ Back ]     

Current File : /home/aeaw/www/node_modules/coa/README.md
# Command-Option-Argument

Yet another parser for command line options.

[![NPM Status][npm-img]][npm]
[![Travis Status][test-img]][travis]
[![AppVeyor Status][appveyor-img]][appveyor]
[![Coverage Status][coverage-img]][coveralls]
[![Dependency Status][dependency-img]][david]

[npm]:          https://www.npmjs.org/package/coa
[npm-img]:      https://img.shields.io/npm/v/coa.svg
[travis]:       https://travis-ci.org/veged/coa
[test-img]:     https://img.shields.io/travis/veged/coa.svg
[appveyor]:     https://ci.appveyor.com/project/zxqfox/coa
[appveyor-img]: https://ci.appveyor.com/api/projects/status/github/veged/coa?svg=true
[coveralls]:    https://coveralls.io/r/veged/coa
[coverage-img]: https://img.shields.io/coveralls/veged/coa.svg
[david]:          https://david-dm.org/veged/coa
[dependency-img]: http://img.shields.io/david/veged/coa.svg

## What is it?

COA is a parser for command line options that aim to get maximum profit from formalization your program API.
Once you write definition in terms of commands, options and arguments you automaticaly get:

* Command line help text
* Program API for use COA-based programs as modules
* Shell completion

### Other features

* Rich types for options and arguments, such as arrays, boolean flags and required
* Commands can be async throught using promising (powered by [Q](https://github.com/kriskowal/q))
* Easy submoduling some existing commands to new top-level one
* Combined validation and complex parsing of values

### TODO

* Localization
* Shell-mode
* Configs
 * Aliases
 * Defaults

## Examples

````javascript
require('coa').Cmd() // main (top level) command declaration
    .name(process.argv[1]) // set top level command name from program name
    .title('My awesome command line util') // title for use in text messages
    .helpful() // make command "helpful", i.e. options -h --help with usage message
    .opt() // add some option
        .name('version') // name for use in API
        .title('Version') // title for use in text messages
        .short('v') // short key: -v
        .long('version') // long key: --version
        .flag() // for options without value
        .act(function(opts) { // add action for option
            // return message as result of action
            return JSON.parse(require('fs').readFileSync(__dirname + '/package.json'))
                .version;
        })
        .end() // end option chain and return to main command
    .cmd().name('subcommand').apply(require('./subcommand').COA).end() // load subcommand from module
    .cmd() // inplace subcommand declaration
        .name('othercommand').title('Awesome other subcommand').helpful()
        .opt()
            .name('input').title('input file, required')
            .short('i').long('input')
            .val(function(v) { // validator function, also for translate simple values
                return require('fs').createReadStream(v) })
            .req() // make option required
            .end() // end option chain and return to command
        .end() // end subcommand chain and return to parent command
    .run(process.argv.slice(2)); // parse and run on process.argv
````

````javascript
// subcommand.js
exports.COA = function() {
    this
        .title('Awesome subcommand').helpful()
        .opt()
            .name('output').title('output file')
            .short('o').long('output')
            .output() // use default preset for "output" option declaration
            .end()
};
````

## API reference

### Cmd
Command is a top level entity. Commands may have options and arguments.

#### Cmd.api
Returns object containing all its subcommands as methods to use from other programs.<br>
**@returns** *{Object}*

#### Cmd.name
Set a canonical command identifier to be used anywhere in the API.<br>
**@param** *String* `_name` command name<br>
**@returns** *COA.Cmd* `this` instance (for chainability)

#### Cmd.title
Set a long description for command to be used anywhere in text messages.<br>
**@param** *String* `_title` command title<br>
**@returns** *COA.Cmd* `this` instance (for chainability)

#### Cmd.cmd
Create new or add existing subcommand for current command.<br>
**@param** *COA.Cmd* `[cmd]` existing command instance<br>
**@returns** *COA.Cmd* new or added subcommand instance

#### Cmd.opt
Create option for current command.<br>
**@returns** *COA.Opt* `new` option instance

#### Cmd.arg
Create argument for current command.<br>
**@returns** *COA.Opt* `new` argument instance

#### Cmd.act
Add (or set) action for current command.<br>
**@param** *Function* `act` action function,
    invoked in the context of command instance
    and has the parameters:<br>
        - *Object* `opts` parsed options<br>
        - *Array* `args` parsed arguments<br>
        - *Object* `res` actions result accumulator<br>
    It can return rejected promise by Cmd.reject (in case of error)
    or any other value treated as result.<br>
**@param** *{Boolean}* [force=false] flag for set action instead add to existings<br>
**@returns** *COA.Cmd* `this` instance (for chainability)

#### Cmd.apply
Apply function with arguments in context of command instance.<br>
**@param** *Function* `fn`<br>
**@param** *Array* `args`<br>
**@returns** *COA.Cmd* `this` instance (for chainability)

#### Cmd.comp
Set custom additional completion for current command.<br>
**@param** *Function* `fn` completion generation function,
    invoked in the context of command instance.
    Accepts parameters:<br>
        - *Object* `opts` completion options<br>
    It can return promise or any other value treated as result.<br>
**@returns** *COA.Cmd* `this` instance (for chainability)

#### Cmd.helpful
Make command "helpful", i.e. add -h --help flags for print usage.<br>
**@returns** *COA.Cmd* `this` instance (for chainability)

#### Cmd.completable
Adds shell completion to command, adds "completion" subcommand, that makes all the magic.<br>
Must be called only on root command.<br>
**@returns** *COA.Cmd* `this` instance (for chainability)

#### Cmd.usage
Build full usage text for current command instance.<br>
**@returns** *String* `usage` text

#### Cmd.run
Parse arguments from simple format like NodeJS process.argv
and run ahead current program, i.e. call process.exit when all actions done.<br>
**@param** *Array* `argv`<br>
**@returns** *COA.Cmd* `this` instance (for chainability)

#### Cmd.invoke
Invoke specified (or current) command using provided options and arguments.<br>
**@param** *String|Array* `cmds`  subcommand to invoke (optional)<br>
**@param** *Object* `opts`  command options (optional)<br>
**@param** *Object* `args`  command arguments (optional)<br>
**@returns** *Q.Promise*

#### Cmd.reject
Return reject of actions results promise.<br>
Use in .act() for return with error.<br>
**@param** *Object* `reason` reject reason<br>
    You can customize toString() method and exitCode property
    of reason object.<br>
**@returns** *Q.promise* rejected promise

#### Cmd.end
Finish chain for current subcommand and return parent command instance.<br>
**@returns** *COA.Cmd* `parent` command

### Opt
Option is a named entity. Options may have short and long keys for use from command line.<br>
**@namespace**<br>
**@class** Presents option

#### Opt.name
Set a canonical option identifier to be used anywhere in the API.<br>
**@param** *String* `_name` option name<br>
**@returns** *COA.Opt* `this` instance (for chainability)

#### Opt.title
Set a long description for option to be used anywhere in text messages.<br>
**@param** *String* `_title` option title<br>
**@returns** *COA.Opt* `this` instance (for chainability)

#### Opt.short
Set a short key for option to be used with one hyphen from command line.<br>
**@param** *String* `_short`<br>
**@returns** *COA.Opt* `this` instance (for chainability)

#### Opt.long
Set a short key for option to be used with double hyphens from command line.<br>
**@param** *String* `_long`<br>
**@returns** *COA.Opt* `this` instance (for chainability)

#### Opt.flag
Make an option boolean, i.e. option without value.<br>
**@returns** *COA.Opt* `this` instance (for chainability)

#### Opt.arr
Makes an option accepts multiple values.<br>
Otherwise, the value will be used by the latter passed.<br>
**@returns** *COA.Opt* `this` instance (for chainability)

#### Opt.req
Makes an option req.<br>
**@returns** *COA.Opt* `this` instance (for chainability)

#### Opt.only
Makes an option to act as a command,
i.e. program will exit just after option action.<br>
**@returns** *COA.Opt* `this` instance (for chainability)

#### Opt.val
Set a validation (or value) function for argument.<br>
Value from command line passes through before becoming available from API.<br>
Using for validation and convertion simple types to any values.<br>
**@param** *Function* `_val` validating function,
    invoked in the context of option instance
    and has one parameter with value from command line<br>
**@returns** *COA.Opt* `this` instance (for chainability)

#### Opt.def
Set a default value for option.
Default value passed through validation function as ordinary value.<br>
**@param** *Object* `_def`<br>
**@returns** *COA.Opt* `this` instance (for chainability)

#### Opt.input
Make option value inputting stream.
It's add useful validation and shortcut for STDIN.
**@returns** *{COA.Opt}* `this` instance (for chainability)

#### Opt.output
Make option value outputing stream.<br>
It's add useful validation and shortcut for STDOUT.<br>
**@returns** *COA.Opt* `this` instance (for chainability)

#### Opt.act
Add action for current option command.
This action is performed if the current option
is present in parsed options (with any value).<br>
**@param** *Function* `act` action function,
    invoked in the context of command instance
    and has the parameters:<br>
        - *Object* `opts` parsed options<br>
        - *Array* `args` parsed arguments<br>
        - *Object* `res` actions result accumulator<br>
    It can return rejected promise by Cmd.reject (in case of error)
    or any other value treated as result.<br>
**@returns** *COA.Opt* `this` instance (for chainability)

#### Opt.comp
Set custom additional completion for current option.<br>
**@param** *Function* `fn` completion generation function,
    invoked in the context of command instance.
    Accepts parameters:<br>
        - *Object* `opts` completion options<br>
    It can return promise or any other value treated as result.<br>
**@returns** *COA.Opt* `this` instance (for chainability)

#### Opt.end
Finish chain for current option and return parent command instance.<br>
**@returns** *COA.Cmd* `parent` command


### Arg
Argument is a unnamed entity.<br>
From command line arguments passed as list of unnamed values.

#### Arg.name
Set a canonical argument identifier to be used anywhere in text messages.<br>
**@param** *String* `_name` argument name<br>
**@returns** *COA.Arg* `this` instance (for chainability)

#### Arg.title
Set a long description for argument to be used anywhere in text messages.<br>
**@param** *String* `_title` argument title<br>
**@returns** *COA.Arg* `this` instance (for chainability)

#### Arg.arr
Makes an argument accepts multiple values.<br>
Otherwise, the value will be used by the latter passed.<br>
**@returns** *COA.Arg* `this` instance (for chainability)

#### Arg.req
Makes an argument req.<br>
**@returns** *COA.Arg* `this` instance (for chainability)

#### Arg.val
Set a validation (or value) function for argument.<br>
Value from command line passes through before becoming available from API.<br>
Using for validation and convertion simple types to any values.<br>
**@param** *Function* `_val` validating function,
    invoked in the context of argument instance
    and has one parameter with value from command line<br>
**@returns** *COA.Arg* `this` instance (for chainability)

#### Arg.def
Set a default value for argument.
Default value passed through validation function as ordinary value.<br>
**@param** *Object* `_def`<br>
**@returns** *COA.Arg* `this` instance (for chainability)

#### Arg.output
Make argument value outputing stream.<br>
It's add useful validation and shortcut for STDOUT.<br>
**@returns** *COA.Arg* `this` instance (for chainability)

#### Arg.comp
Set custom additional completion for current argument.<br>
**@param** *Function* `fn` completion generation function,
    invoked in the context of command instance.
    Accepts parameters:<br>
        - *Object* `opts` completion options<br>
    It can return promise or any other value treated as result.<br>
**@returns** *COA.Arg* `this` instance (for chainability)

#### Arg.end
Finish chain for current option and return parent command instance.<br>
**@returns** *COA.Cmd* `parent` command

Youez - 2016 - github.com/yon3zu
LinuXploit