fix a-stem deconjugations and some display bugs

background-script.js

@@ -185,7 +185,7 @@ rules.push({type: "neverfinalrule"
 , dec_end:
 ["く","す","つ","う","る","ぐ","ぶ","ぬ","む","う","く"]
 , con_end:
-["か","せ","て","わ","ら","が","ば","な","ま","わ","か"]
+["か","さ","た","わ","ら","が","ば","な","ま","わ","か"]
 , dec_tag:
 ["v5k","v5s","v5t","v5u","v5r","v5g","v5b","v5n","v5m","v5u-s","v5k-s"] // TODO: support あらへん, あらぬ, etc
 , con_tag:"stem-a", detail:"('a' stem)"});

texthook.js

@@ -242,14 +242,18 @@ function build_div (text, result)
                     {
                         if(form.process.length > 0)
                             temptag += "～";
+                        let added = 0;
                         for(let f = form.process.length-1; f >= 0; f--)
                         {
                             let info = form.process[f];
+                            if(info == "")
+                                continue;
                             if(info.startsWith("(") && info.endsWith(")") && f != 0)
                                 continue;
-                            temptag += info;
-                            if(f > 0)
+                            if(added > 0)
                                 temptag += "―";
+                            added++;
+                            temptag += info;
                         }
                     }
                 }
@@ -328,14 +332,18 @@ function build_div (text, result)
                 {
                     if(form.process.length > 0)
                         temptag += "～";
+                    let added = 0;
                     for(let f = form.process.length-1; f >= 0; f--)
                     {
                         let info = form.process[f];
+                        if(info == "")
+                            continue;
                         if(info.startsWith("(") && info.endsWith(")") && f != 0)
                             continue;
-                        temptag += info;
-                        if(f > 0)
+                        if(added > 0)
                             temptag += "―";
+                        added++;
+                        temptag += info;
                     }
                 }
             }