bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/internal/parsing/declarations/DDocumentationAst.java

   1 package org.simantics.scl.compiler.internal.parsing.declarations;\r
   2 \r
   3 \r
   4 public class DDocumentationAst extends DeclarationAst {\r
   5     public final String documentation;\r
   6     \r
   7     public DDocumentationAst(String documentation) {\r
   8         this.documentation = cleanUp(documentation);\r
   9     }\r
  10 \r
  11     @Override\r
  12     public void toString(int indentation, StringBuilder b) {\r
  13         for(int i=0;i<indentation;++i) b.append("    ");\r
  14         b.append("\"\"\"\n");\r
  15         b.append(documentation);\r
  16         b.append("\"\"\"\n");\r
  17         \r
  18     }\r
  19     \r
  20     private static String cleanUp(String documentation) {\r
  21         // Remove empty lines\r
  22         int end = documentation.length();\r
  23         while(end > 0) {\r
  24             char c = documentation.charAt(end-1);\r
  25             if(c != ' ' && c != '\n')\r
  26                 break;\r
  27             --end;\r
  28         }\r
  29         \r
  30         int begin = 0;\r
  31         for(int i=0;i<end;++i) {\r
  32             char c = documentation.charAt(i);\r
  33             if(c == '\n')\r
  34                 begin = i+1;\r
  35             else if(c != ' ')\r
  36                 break;\r
  37         }\r
  38             \r
  39         // Calculate common indentation\r
  40         int lineStart = begin;\r
  41         int commonIndentation = Integer.MAX_VALUE;\r
  42         for(int i=begin;i<end;++i) {\r
  43             char c = documentation.charAt(i);\r
  44             if(c == '\n') {\r
  45                 lineStart = i+1;\r
  46             }\r
  47             else if(lineStart >= 0 && c != ' ') {\r
  48                 int indentation = i - lineStart;\r
  49                 commonIndentation = Math.min(commonIndentation, indentation);\r
  50                 if(commonIndentation == 0) {\r
  51                     if(begin == 0 && end == documentation.length())\r
  52                         return documentation;\r
  53                     else\r
  54                         return documentation.substring(begin, end);\r
  55                 }\r
  56                 lineStart = -1;\r
  57             }\r
  58         }\r
  59         \r
  60         // Remove common indentation\r
  61         StringBuilder result = new StringBuilder();\r
  62         int charsToSkip = commonIndentation;\r
  63         for(int i=begin;i<end;++i) {\r
  64             char c = documentation.charAt(i);\r
  65             if(c == '\n') {\r
  66                 result.append(c);\r
  67                 charsToSkip = commonIndentation;\r
  68                 continue;\r
  69             }\r
  70             if(charsToSkip > 0)\r
  71                 --charsToSkip;\r
  72             else\r
  73                 result.append(c);\r
  74         }\r
  75         return result.toString();\r
  76     }\r
  77 }\r