bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/markdown/nodes/Reference.java

   1 package org.simantics.scl.compiler.markdown.nodes;
   2
   3 import org.simantics.scl.compiler.markdown.inlines.Entities;
   4 import org.simantics.scl.compiler.markdown.inlines.Subject;
   5
   6 public class Reference {
   7     public final String label;
   8     public final String url;
   9     public final String title;
  10
  11     public Reference(String label, String url, String title) {
  12         this.label = label;
  13         this.url = url;
  14         this.title = title;
  15     }
  16
  17     public static String normalizeLabel(String label) {
  18         StringBuilder b = new StringBuilder();
  19         int pos = 0;
  20         while(pos < label.length() && Character.isWhitespace(label.charAt(pos)))
  21             ++pos;
  22         boolean ws = false;
  23         while(pos < label.length()) {
  24             char c = label.charAt(pos++);
  25             if(Character.isWhitespace(c))
  26                 ws = true;
  27             else {
  28                 if(ws)
  29                     b.append(' ');
  30                 b.append(Character.toLowerCase(c));
  31             }
  32         }
  33         return b.toString();
  34     }
  35
  36     public static String cleanUrl(String input) {
  37         StringBuilder b = new StringBuilder();
  38         int pos = 0;
  39         while(pos < input.length()) {
  40             char c = input.charAt(pos++);
  41             if(c == '\\' && pos < input.length()) {
  42                 c = input.charAt(pos);
  43                 if(Subject.getCharType(c) == 2) {
  44                     b.append(c);
  45                     ++pos;
  46                 }
  47                 else
  48                     b.append('\\');
  49             }
  50             else if(c == '&') {
  51                 int maxPos = Math.min(input.length(), pos+Entities.MAX_ENTITY_LENGTH+1);
  52                 int p = pos;
  53                 while(true) {
  54                     if(p == maxPos) {
  55                         b.append("&");
  56                         break;
  57                     }
  58                     c = input.charAt(p++);
  59                     if(c == ';') {
  60                         String entity = input.substring(pos, p-1);
  61                         String character = Entities.ENTITY_MAP.get(entity);
  62                         if(character == null) {
  63                             b.append("&");
  64                             break;
  65                         }
  66                         else {
  67                             pos = p;
  68                             b.append(character);
  69                             break;
  70                         }
  71                     }
  72                 }
  73             }
  74             else
  75                 b.append(c);
  76         }
  77         return b.toString();
  78     }
  79
  80     public static String cleanTitle(String input) {
  81         return cleanUrl(input);
  82     }
  83 }