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HTML

              
                section(v-scope="")
  //span 🏗
  //span ⚠️🚧
  //div {{JSON.stringify(store)}}
  div.toolbtn
    label
      input(type="checkbox",v-model="store.open_cheatsheet")
      span 📒
    label
      input(type="checkbox",v-model="store.open_table")
      span 📝
  div.cs(v-if="store.open_cheatsheet")
    span(v-for="(v,k) in store.gs")
      span {{k+"\u20de"}}	{{v}} 
    span(v-for="(v,k) in store.ds")
      span {{k+"\u20dd"}}	{{v}} 
    span(v-for="(v,k) in store.nn")
      span {{k+"\u20e4"}}	{{v}} 
    span(v-for="(v,k) in store.kmj")
      span {{"ゃ\u20d8"}}	{{v}} 
  div.tbl(v-if="store.open_table")
    div.ps
      span(v-scope="preset_btn({label:'♥️',key:'zk'})")
      span(v-scope="preset_btn({label:'🐾',key:'nk'})")
      span(v-scope="preset_btn({label:'🐱',key:'ny'})")
      span(v-scope="preset_btn({label:'🐶',key:'wf'})")
      span(v-scope="preset_btn({label:'👓',key:'df'})")
    ul: li(v-for="g_key in keys.g")
      label
        span {{g_key}}
        input(v-model="store.gs[g_key]",
          @change="udt_zk();zkbg()")
    ul: li(v-scope="{n_key: keys.nn[0]}")
      label {{n_key}}
        input(v-model="store.nn[n_key]",
          @change="udt_zk();zkbg()")
    ul: li(v-for="d_key in keys.d")
      label {{d_key}}
        input(v-model="store.ds[d_key]",
          @change="udt_zk();zkbg()")
    ul: li(v-scope="{k_key: keys.kmj[0]}")
      label {{k_key}}
        input(v-model="store.kmj[k_key]",
          @change="udt_zk();zkbg()")
      div(v-scope="{o_k:keys.okb[0]}")
        label: input(type="checkbox",v-model="store.conv_opts.kmmv",@change="udt_zk();zkbg()")
        label
          span {{o_k}}
          input(v-model="store.okb[o_k]",:disabled="!store.conv_opts.kmmv",@change="udt_zk();zkbg()")
    div.xb: label
      input(type="checkbox", v-model="store.open_xsbr")
      span 🪄
    div.xb(v-if="store.open_xsbr",v-scope={from:"♥️",to:"♡"})
      button(@click="[from,to] = [to,from]") ↔️
      input(v-model="from")
      span →
      input(v-model="to")
      button(@click="xsbr(from,to);udt_zk();zkbg()") 🪄
  div
    div: label
      input(type="checkbox",
        v-model="store.conv_opts.hn2zn",
        @change="udt_zk")
      span カナ→カナ→💌
    div: textarea.kn(
      v-model="store.ta.kn",
      @input="udt_zk",
      :placeholder="store.sample")
    
    div.zkb(v-if="store.open_zkb")
      span(v-for="kc in store.zkbks",
        :key="s2cp_(kc)")
        span(v-scope="zkbk({label:kc,text:kc})")
      button(@click="bszk();udt_kn()") ◀️
      button(@click="store.ta.zk='';udt_kn()") ⏮
    div.zkb
      label
        input(type="checkbox", v-model="store.open_zkb")
        span ⌨️
    div: textarea.zk(
      v-model="store.ta.zk",
      @input="udt_kn",
      :placeholder="kn2zk(store.sample)")
    div: span 💌→
      label
        input(type="radio",value="hr",
        v-model="store.conv_opts.hrkt",
        @change="udt_kn")
        span あ⃞
      label
        input(type="radio",value="kn",
        v-model="store.conv_opts.hrkt",
        @change="udt_kn")
        span ㋐
    
  template(id="preset")
    button(@click="fill();udt_zk();zkbg()")
      span {{label}}
  template(id="zkbk")
    button(@click="put();udt_kn()")
      span {{label}}
      
<script type="text/plain" v-scope="" @vue:mounted="reg($el,'zk','init')">
|【行】
| あ	ざーこ
| か	ざぁこ
| さ	ざこぉ
| た	ざーこー
| な	ざぁこー
| は	ざこぉー
| ま	ざぁーこ
| や	ざーこぉ
| ら	ざこー
| わ	ざこ
| ん	ざこち〇ぽ♥️
| が	雑ぁ魚
| ざ	雑魚ぉ
| だ	雑ー魚ー
| ば	雑魚ぉー
| ぱ	ざっこ
|【段】
| あ	♥️
| い	っ♥️
| う	…♥️
| え	っ♥️♥️
| お	♥️♥️
| 小文字化	!
| この前に	♥️
</script>
<script type="text/plain" v-scope="" @vue:mounted="reg($el,'nk')">
|【行】
| あ	ねーこ
| か	にぇこ
| さ	ねこぉ
| た	ねーこー
| な	にぇこー
| は	ねこぉー
| ま	にぇーこ
| や	ねーこぉ
| ら	ねこー
| わ	ねこ
| ん	ねこし〇ぽ♥️
| が	ニェコ
| ざ	ネコォ
| だ	ネーコー
| ば	ネコォー
| ぱ	ねっこ
|【段】
| あ	♥️
| い	っ♥️
| う	…♥️
| え	っ♥️♥️
| お	♥️♥️
| 小文字化	!
| この前に	♥️
</script>
<script type="text/plain" v-scope="" @vue:mounted="reg($el,'ny')">
|【行】
| あ	にゃーお
| か	にゃぁお
| さ	にゃおぉ
| た	にゃーおー
| な	にゃぁおー
| は	にゃおぉー
| ま	にゃぁーお
| や	にゃーおぉ
| ら	にゃおー
| わ	にゃお
| ん	にゃおち〇ーる♡
| が	んみゃぁお
| ざ	んみゃおぉ
| だ	んみゃーおー
| ば	んみゃおぉー
| ぱ	にゃっお
|【段】
| あ	♡
| い	っ♡
| う	…♡
| え	っ♡♡
| お	♡♡
| 小文字化	!
| この前に	♡
</script>
<script type="text/plain" v-scope="" @vue:mounted="reg($el,'wf')">
|【行】
| あ	わっふ
| か	わぁふ
| さ	わふぅ
| た	わっふー
| な	わぁふー
| は	わふぅー
| ま	わぁーふ
| や	わっふぅ
| ら	わふー
| わ	わふ
| ん	わっふっふー‼️
| が	わぁふわふ
| ざ	わふわふぅ
| だ	わっふわーふ
| ば	わふわふぅー
| ぱ	わふふ
|【段】
| あ	!
| い	っ!
| う	…♡
| え	っ‼️
| お	♪
| 小文字化	ッ
| この前に	
</script>
<script type="text/plain" v-scope="" @vue:mounted="reg($el,'df')">
|【行】
| あ	デュフ
| か	ドゥフ
| さ	ブフォ
| た	デュフフ
| な	ドゥフフ
| は	ブホ
| ま	ドゥフフフ
| や	デュフフフ
| ら	ブフー
| わ	ブフ
| ん	フォカヌポゥwww
| が	ドゥブフ
| ざ	ドブフォ
| だ	ドゥブフフ
| ば	ドブフォホ
| ぱ	ブッホ
|【段】
| あ	w
| い	ッw
| う	ホww
| え	ッww
| お	ww
| 小文字化	コポォ
| この前に	w
</script>
              
            
!

CSS

              
                @import "https://unpkg.com/normalize.css@8.0.1/normalize.css";
body, textarea {
  font-size: small;
  font-family: sans-serif;
  background-color: lavenderblush;
}
input:not([type]), textarea {
  background-color: snow;
  border-color: lavender;
}
label {background-color: lavender;}
li {
  list-style-type: none;
}
ul {
  padding-left: 1em;
}
div {
  margin: 0.5em;
}
textarea {
  width: 95%;
}

button {
  margin: 0.1em;
  padding: 0.2em 0.5em;
  background-color: mistyrose;
  border-color: salmon;
}

.toolbtn {text-align: right;}
.cs {opacity: 0.6; background-color: lavender;}
.ps {text-align: center;}
.xb {text-align: right;}
.zkb {text-align: right;}

textarea.kn {
  height: 10vh;
}
textarea.zk {height: 40vh;}
              
            
!

JS

              
                const keys = {
  g: "あかさたなはまやらわがざだばぱ".split``,
  d: "あいうえお".split``,
  nn: ["ん"],
  kmj: ["小文字化"],
  okb: ["この前に"] // 🆕
}//for <label> & srctxts
const {kn2abMap,ab2kkMap,kk2abMap,ab2knMap,hrktMp} = aMap(keys)

const [gs, ds, nn, kmj, okb] = ["g", "d", "nn", "kmj", "okb"].map((x) =>
  Object.fromEntries(keys[x].map((k) => [k, ""]))
);

const midasi = [{ g: "【行】"}, {d: "【段】" }]
  .reduce((a,c,i)=>{
    const k = Object.keys(c)[0]
    return {...a,[k]:{txt:c[k]}}
  },{})

const {vsm,emm,zwj} = xxm()
  
const { createApp, reactive } = PetiteVue;
const store = reactive({
  gs,ds,nn,kmj,okb,
  open_cheatsheet:false,
  open_table:false,open_zkb:false,open_xsbr:false,
  conv_opts:{
    hn2zn: true,
    hrkt: "hr",
    kmmv: true
  },
  srctxts:{zk:""},
  ta:{kn:"",zk:""},zkbks:[],
  sample: "こんにちは"
});
createApp({ store }).mount();

function preset_btn(props) {
  const { label, key } = props;
  return {
    $template: "#preset",
    label, key,
    fill() {fill_table(key);zkbg()}
  };
}
function fill_table(key) {
  set_table(store.srctxts[key])
}

function set_table(srctxt) {
  const ls = srctxt.split(/[\n\r]+/);
  const dstart = ls.findIndex(l => l.match(midasi.d.txt));
  const gstart = ls.findIndex(l => l.match(midasi.g.txt));
  ls.forEach((l, li) => {
    if (l.indexOf`\t` > 0) {
      const [k, v] = l.split`\t`;
      //if (keys.nn[0]==k || keys.kmj[0]==k) {
      if (["nn","kmj","okb"].some(n=>keys[n][0]==k)){
        store[["nn","kmj","okb"].find(n=>keys[n][0]==k)][k] = v;
      } else {
        store[(
          (gstart<dstart&&gstart<li&&li<dstart)||
          (dstart<gstart&&gstart<li)?"g":"d"
          )+"s"][k] = v;
      }
    }
  });
}

function s2cp_(str) {
  let r="";for(const s of str){r+=s.codePointAt(0)+"_"}
  return r
}

function xsbr(f,t) { // “batch/bulk” replace
  //const {gs,ds,nn,kmj} = store
  ["gs","ds","nn","kmj","okb"].forEach(x=>{
    for (let [k,v] of Object.entries(store[x])) {
      store[x][k] = v.replaceAll(f,t)
    }
  })
}

function aMap(keys) {
  const mapsrctxt = `
あア→.a;いイ→.i;うウ→.u;えエ→.e;おオ→.o;
かカ→ka;きキ→ki;くク→ku;けケ→ke;こコ→ko;
さサ→sa;しシ→si;すス→su;せセ→se;そソ→so;
たタ→ta;ちチ→ti;つツ→tu;てテ→te;とト→to;
なナ→na;にニ→ni;ぬヌ→nu;ねネ→ne;のノ→no;
はハ→ha;ひヒ→hi;ふフ→hu;へヘ→he;ほホ→ho;
まマ→ma;みミ→mi;むム→mu;めメ→me;もモ→mo;
やヤ→ya;ゆユ→yu;よヨ→yo;
らラ→ra;りリ→ri;るル→ru;れレ→re;ろロ→ro;
わワ→wa;ゐヰ→wi;ゑヱ→we;をヲ→wo;
んン→q;
がガ→ga;ぎギ→gi;ぐグ→gu;げゲ→ge;ごゴ→go;
ざザ→za;じジ→zi;ずズ→zu;ぜゼ→ze;ぞゾ→zo;
だダ→da;ぢヂ→di;づヅ→du;でデ→de;どド→do;
ばバ→ba;びビ→bi;ぶブ→bu;べベ→be;ぼボ→bo;
ぱパ→pa;ぴピ→pi;ぷプ→pu;ぺペ→pe;ぽポ→po;
ぁァ→.!a;ぃィ→.!i;ぅゥ→.!u;ぇェ→.!e;ぉォ→.!o;
ゃャ→y!a;ゅュ→y!u;ょョ→y!o;
っッ→t!u;
  `.trim()
  const kn2abMap = new Map(), hrktMp=new Map()
  mapsrctxt.split(/;\s?/)
    .map(v=>v.split`→`)
    .forEach(([ks,v])=>{
      const x = ks.split``, y=[true,false]
      x.forEach(k=>{kn2abMap.set(k,v)})
      y.forEach(i=>hrktMp.set(x[i?0:1],x[i?1:0]))
    })
  const ab2kkMap = new Map();
  ["g:.kstnhmyrwgzdbp","d:aiueo","nn:q","kmj:!"]
    .map(v=>v.split`:`)
    .forEach(([k,s])=>{s.split``.forEach((v,idx)=>{
      ab2kkMap.set(v,[
        k+(k=="g"||k=="d"?"s":""),
        keys[k][idx]
      ])
    })})
  const n_=new Map();ab2kkMap.forEach((v,k)=>{n_.set(v.join`,`,k)});const kk2abMap = n_;
  const o_=new Map();kn2abMap.forEach((v,k)=>{if(/[ぁ-ん]/.test(k))o_.set(v,k)});const ab2knMap = o_;
  return {kn2abMap,ab2kkMap,kk2abMap,ab2knMap,hrktMp}
}

function kn2zk(
  text,st,
  k2aM=kn2abMap,a2kM=ab2kkMap
){
  st=st?st:store;
  const {conv_opts} = st
  const {hn2zn,kmmv} = conv_opts
  const srctext0 = hn2zn?hntxt2zntxt(text):text
  const srctext = nobasi2vowel(srctext0)
  const replacer = moji => {
    const ab = k2aM.get(moji)
    const tbj = ab ? ab.split``
      .map(a=>a2kM.get(a))
      .map(kk=>st[kk[0]][kk[1]])
      :null
    return !tbj?moji:kmmv&&ab[1]=="!"?
      kzrp_kmmv(tbj):
      tbj.join``
  }
  return srctext.replace(/[ァ-ンぁ-ん]/g,replacer)
}
function kzrp_kmmv(tbj){
  const [gy,kj,dn] = tbj
  const okb_s = store.okb[keys.okb[0]]
  const dkjn = dn.replace(okb_s,kj+okb_s)
  return dkjn.match(okb_s)?gy+dkjn:gy+kj+dn
}

function hntxt2zntxt(hntxt) {
  return hntxt.replace(/[。-゚]+/g,m=>m.normalize("NFKC")).toString()
}

function nobasi2vowel(text,k2aM=kn2abMap) {
  k2aM=k2aM?k2aM:kn2abMap
  return text.replace(
    /([ァ-ンぁ-ん])(ー+)/g,(_,kn,nbs)=>{
      const ab = k2aM.get(kn)
      const b = ab?ab.slice(-1)[0]:null
      const tbl = {a:"あ",i:"い",u:"う",e:"え",o:"お"}
      const result = b?tbl[b]?tbl[b]:kn:ー
      return [kn,nbs.replace(/./g,result)].join``}
  ).toString()
}

function zk2kn(
  text_in,st,
  kkab=kk2abMap,abkn=ab2knMap
){
  st=st?st:store;
  const {conv_opts,gs,ds,nn,kmj,okb} = st
  const {hrkt,kmmv} = conv_opts
  const zkkk = new Map() // nonce Map()
  //regexp
  const [pg,pd,pn,pk] = [{gs},{ds},{nn},{kmj}]
    .map(o0=>{
      const [k,o] = Object.entries(o0)[0]
      return Object.entries(o).map(([l,z])=>{
        zkkk.set(z,[k,l].join`,`)
        return escstr(z)
      })
    })
  //(kmmv? undo komoji-move)
  const dkjn2zkM = !kmmv?null:d2z_gen(ds,kmj,okb)
  const text = !kmmv?text_in:nomrepwitMap(text_in,dkjn2zkM)
  //([nn]|[pg][kmj]?[pd])
  const restr = `
    (${pn[0]})|(?!${pd.join`|`})((${pg.join`|`})(${pk[0]})?(${pd.join`|`}))(?!${pd.join`|`})
    `.trim()
  const re = new RegExp(restr,"g")
  //replacer
  return text.replace(re,(_m,mn,__,mg,mk,md)=>{
    //console.log({mn,mg,mk,md})
    const abcd = [mn,mg,mk,md].filter(_=>_).map(m=>
      kkab.get(zkkk.get(m))
    ).join``
    const hrgn = abkn.get(abcd)
    const knkn = hrkt=="hr"?hrgn:hrktMp.get(hrgn)
    return knkn?knkn:_m
  })
}
function escstr(str) { if(!str) return null
  const sp = /[\[\\\^\$\.\|\?\*\+\(\)]/g
  return str.replace(sp,"\\$&").toString()
}// for RegExp
function d2z_gen(ds_,kmj_,okb_) {
  const o_s = okb_[keys.okb[0]]
  const k_s = kmj_[keys.kmj[0]]
  const dkjn2zkM = new Map()
  Object.values(ds_).forEach(zd=>{
    dkjn2zkM.set(zd.replace(o_s,k_s+o_s),k_s+zd)
  })
  return dkjn2zkM
}
function nomrepwitMap(text,_Map) {
  const re0 = [..._Map.keys()].join`|`
  return text.replace(
    new RegExp(`(${re0})`,"g"),
    match=>_Map.get(match)
  )
}

//for key<button>s

function xxm() {
  const vsm = /[\u{fe00}-\u{fe0f}\u{e0100}-\u{e01ef}]/u
  const emm = /[\u{1f3fb}-\u{1f3ff}\u{200d}]/u
  const zwj = "\u{200d}"
  // flags not supported
  return {vsm,emm,zwj}
}
function ss(str) {
  let r = [], pre_z=false
  for (const c of str) {
    r.push(
      (vsm.test(c)||emm.test(c)||pre_z)&&r[0]?
        r.pop().concat(c):
        c)
    pre_z = zwj==c
  }
  return r
}
function zkbg() {
  let pre_z = false, last = ""
  const {gs,ds,nn,kmj} = store
  const charS = new Set()
  for (const o of [gs,ds,nn,kmj]) {
    for (const v of Object.values(o)) {
      for (const c of v) {
        if (vsm.test(c)||emm.test(c)||pre_z) {
          charS.delete(last);
          charS.add(last+c);last=last+c
        }else{charS.add(c);last=c}
        pre_z = zwj==c
  }}}
  store.zkbks.splice(0)
  charS.forEach(c=>{store.zkbks.push(c)})
}
function zkbk(props) {
  const { label, text } = props;
  return {
    $template: "#zkbk",
    label, text,
    put() {store.ta.zk+=text}
  }
}

function bszk() { //"backspace"
  const tarr = [...store.ta.zk]
  const popt = tarr.pop()
  if(vsm.test(popt)||emm.test(popt)||tarr.slice(-1)[0]==zwj){tarr.pop()}
  store.ta.zk = tarr.join``
}

function udt_zk() {store.ta.zk=kn2zk(store.ta.kn)}
function udt_kn() {store.ta.kn=zk2kn(store.ta.zk)}

//init

function reg(elm,key,init_with=false) {
  const srctxt = elm.text
  store.srctxts[key] = srctxt
  if(init_with){
    fill_table(key)
    zkbg()
  }
}
              
            
!
999px

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