notation.js

   1
   2 exports.encode = encode;
   3 function encode(sections) {
   4     return sections.map(function (section) {
   5         return section.map(function (paragraph) {
   6             return paragraph.map(function (line) {
   7                 return line.map(function (word) {
   8                     return word.map(function (column) {
   9                         var parts = [];
  10                         if (column.above)
  11                             parts.push(column.above);
  12                         if (column.below)
  13                             parts.push(column.below);
  14                         if (column.following)
  15                             parts.push(column.following);
  16                         if (column.tildeAbove)
  17                             parts.push("tilde-above");
  18                         if (column.tildeBelow)
  19                             parts.push("tilde-below");
  20                         if (parts.length) {
  21                             return column.tengwa + ":" + parts.join(",");
  22                         } else {
  23                             return column.tengwa;
  24                         }
  25                     }).join(";");
  26                 }).join(" ");;
  27             }).join("\n");
  28         }).join("\n\n");
  29     }).join("\n\n\n");
  30 }
  31
  32 exports.decode = decode;
  33 function decode(encoding, makeColumn) {
  34     return encoding.split("\n\n\n").map(function (section) {
  35         return section.split("\n\n").map(function (paragraph) {
  36             return paragraph.split("\n").map(function (line) {
  37                 return line.split(" ").map(function (word) {
  38                     return decodeWord(word, makeColumn);
  39                 });
  40             });
  41         });
  42     });
  43 }
  44
  45 exports.decodeWord = decodeWord;
  46 function decodeWord(word, makeColumn) {
  47     return word.split(";").map(function (column) {
  48         var parts = column.split(":");
  49         var tengwa = parts.shift();
  50         var tehtar = parts.length ? parts.shift().split(",") : [];
  51         var result = makeColumn(tengwa);
  52         tehtar.forEach(function (tehta) {
  53             if (tehta === "tilde-above") {
  54                 result.addTildeAbove();
  55             } else if (tehta === "tilde-below") {
  56                 result.addTildeBelow();
  57             } else if (tehta === "y") {
  58                 result.addBelow("y");
  59             } else if (
  60                 tehta === "s" ||
  61                 tehta === "s-inverse" ||
  62                 tehta === "s-extended" ||
  63                 tehta === "s-flourish"
  64             ) {
  65                 if (
  66                     tehta === "s" &&
  67                     (tengwa === "calma" || tengwa === "quesse")
  68                 ) {
  69                     result.addBelow(tehta, "s");
  70                 } else {
  71                     result.addFollowing(tehta, "s");
  72                 }
  73             } else {
  74                 result.addAbove(tehta, "s");
  75             }
  76         });
  77         return result;
  78     });
  79 }
  80