src/edu/berkeley/fleet/two/ShipDescription.java

   1 package edu.berkeley.fleet.two;
   2 import edu.berkeley.fleet.api.*;
   3 import java.io.*;
   4 import java.util.*;
   5
   6 /** NOT YET FINALIZED: A description (specification) of a ship */
   7 public class ShipDescription implements Iterable<DockDescription> {
   8
   9     private String name;
  10     private LinkedHashMap<String,DockDescription> docks     = new LinkedHashMap<String,DockDescription>();
  11     private HashMap<String,String>                sections  = new HashMap<String,String>();
  12     private HashMap<String,Constant>              constants = new HashMap<String,Constant>();
  13
  14     public String getName() { return name; }
  15     public String getSection(String sectionName) { return sections.get(sectionName); }
  16     public DockDescription getDockDescription(String name) { return docks.get(name); }
  17     public Iterator<DockDescription> iterator() { return docks.values().iterator(); }
  18
  19     public ShipDescription(String name, BufferedReader r) throws IOException {
  20         if (name.endsWith(".ship")) name = name.substring(0, name.length()-".ship".length());
  21         this.name = name;
  22         String sectionName = null;
  23         StringBuffer sb = new StringBuffer();
  24         while(true) {
  25             String s = r.readLine();
  26             if (s==null || s.startsWith("==")) {
  27                 if (sectionName != null) sections.put(sectionName, sb.toString());
  28                 if (s==null) break;
  29                 sb = new StringBuffer();
  30                 sectionName = s.trim();
  31                 while(sectionName.startsWith("="))
  32                     sectionName = sectionName.substring(1);
  33                 while(sectionName.endsWith("="))
  34                     sectionName = sectionName.substring(0, sectionName.length()-1);
  35                 sectionName = sectionName.trim().toLowerCase();
  36                 continue;
  37             }
  38             sb.append(s+"\n");
  39         }
  40         for(String s : sections.keySet())
  41             processSection(s);
  42     }
  43
  44     public Constant getConstant(String name) {
  45         return constants.get(name);
  46     }
  47
  48     private void processSection(String section) throws IOException {
  49         if (section.equals("")) {
  50             BufferedReader br = new BufferedReader(new StringReader(sections.get(section)));
  51             for(String s = br.readLine(); s != null; s = br.readLine()) {
  52                 if (s.trim().length()==0) continue;
  53                 String key = s.substring(0, s.indexOf(':')).trim();
  54                 String val = s.substring(s.indexOf(':')+1).trim();
  55                 if (key.toLowerCase().equals("ship"))
  56                     name = val.trim();
  57             }
  58         } else if (section.equals("constants")) {
  59             BufferedReader br = new BufferedReader(new StringReader(sections.get(section)));
  60             for(String s = br.readLine(); s != null; s = br.readLine()) {
  61                 if (s.indexOf(':')==-1) continue;
  62                 String key = s.substring(0, s.indexOf(':')).trim();
  63                 if (key.startsWith("constant")) {
  64                     String constname = key.substring("constant".length()+1).trim();
  65                     String val       = s.substring(s.indexOf(':')+1).trim();
  66                     constants.put(constname, new Constant(val));
  67                 }
  68             }
  69         } else if (section.equals("ports")) {
  70             BufferedReader br = new BufferedReader(new StringReader(sections.get(section)));
  71             boolean rightSide = false;
  72             DockDescription p = null;
  73             for(String s = br.readLine(); s != null; s = br.readLine()) {
  74                 if (s.trim().length()==0) { rightSide = true; continue; }
  75
  76                 String key = s.substring(0, s.indexOf(':')).trim();
  77                 boolean inbox = false;
  78                 key = key.replaceAll("  +", " ");
  79                 if      (key.equals("data in"))   { inbox = true;  }
  80                 else if (key.equals("data out"))  { inbox = false; }
  81                 else if (key.equals("in"))        { inbox = true;  }
  82                 else if (key.equals("out"))       { inbox = false; }
  83                 else if (key.startsWith("constant")) {
  84                     String constname = key.substring("constant".length()+1).trim();
  85                     String val       = s.substring(s.indexOf(':')+1).trim();
  86                     p.addConstant(constname, new Constant(val));
  87                     continue;
  88                 } else if (key.startsWith("shortcut to")) {
  89                     continue;
  90                 }
  91                 else throw new RuntimeException("unknown port type: \""+key+"\"");
  92
  93                 p = null;
  94                 String val = s.substring(s.indexOf(':')+1).trim();
  95                 String boxname = val.indexOf('.') != -1 ? val.substring(0, val.indexOf('.')) : val;
  96                 String dest    = val.indexOf('.') != -1 ? val.substring(val.indexOf('.')+1)  : "";
  97                 p = docks.get(boxname);
  98                 if (p==null) {
  99                     p = new DockDescription(this, boxname, !rightSide, inbox);
 100                     docks.put(boxname, p);
 101                 }
 102             }
 103         }
 104     }
 105
 106     public void printTeX(PrintWriter pw) throws Exception {
 107         ShipDescription sd = this;
 108         pw.println("\\pagebreak");
 109         pw.println("\\section*{The {\\tt "+sd.getName()+"} Ship}");
 110         pw.println("\\addcontentsline{toc}{subsection}{"+sd.getName()+"}");
 111         String tex = sd.getSection("tex");
 112         /*
 113         for(DockDescription bbd : sd) {
 114             pw.println("{\\bf "+(bbd.isInputDock() ? "Input: " : "Output: ")+"{\\tt "+bbd.getName()+"}}\n\n");
 115         }
 116         */
 117         int boxGap = 5;
 118         int boxHeight = 25;
 119         int boxWidth = 75;
 120
 121         int leftSize = 0;
 122         int rightSize = 0;
 123         for(DockDescription bbd : sd)
 124             if (bbd.isLeft()) leftSize += (boxHeight+boxGap);
 125             else              rightSize += (boxHeight+boxGap);
 126
 127         int totalHeight = Math.max(leftSize, rightSize);
 128         int shipWidth = (int)(boxWidth * 1.5);
 129         int totalWidth = boxGap*2 + boxWidth*2 + shipWidth;
 130
 131         pw.println("");
 132         pw.println("\\begin{center}");
 133         pw.println("\\begin{empfile}["+sd.getName()+"]");
 134         pw.println("\\begin{emp}["+sd.getName()+"]("+(totalWidth+10)+","+(totalHeight+10)+")");
 135         pw.println("  beginfig(1)");
 136         pw.println("      pickup pencircle scaled 1pt;");
 137         pw.println("      draw "+
 138                    "("+((totalWidth-shipWidth)/2)+","+0+")--"+
 139                    "("+((totalWidth-shipWidth)/2)+","+totalHeight+")--"+
 140                    "("+(totalWidth-((totalWidth-shipWidth)/2))+","+totalHeight+")--"+
 141                    "("+(totalWidth-((totalWidth-shipWidth)/2))+","+0+")--"+
 142                    "("+((totalWidth-shipWidth)/2)+","+0+");");
 143         int left = 0;
 144         int right = 0;
 145         for(DockDescription bbd : sd) {
 146             int ypos = (totalHeight - (boxGap/2) - (bbd.isLeft() ? left : right));
 147             int half = (totalWidth-shipWidth)/2;
 148             int p1 = bbd.isLeft() ? (half-5) : ((totalWidth-half)+5);
 149             int p3 = bbd.isLeft() ? (p1 - boxWidth) : (p1 + boxWidth);
 150             if (bbd.isInputDock()) {
 151                 int p1x = p1;
 152                 p1 = p3;
 153                 p3 = p1x;
 154             }
 155             boolean goo = ((bbd.isLeft() && bbd.isInputDock()) || (!bbd.isLeft() && bbd.isOutputDock()));
 156             int p2 = goo ? (p3 - (boxHeight/2)) : (p3 + (boxHeight/2));
 157             if (bbd.isLeft()) left += (boxHeight+boxGap);
 158             else              right += (boxHeight+boxGap);
 159             if (goo) {
 160                 pw.println("      label.rt(btex \\tt "+bbd.getName()+" etex, ("+(p1+3)+","+(ypos-boxHeight/2)+"));");
 161             } else {
 162                 pw.println("      label.lft(btex \\tt "+bbd.getName()+" etex, ("+(p1-3)+","+(ypos-boxHeight/2)+"));");
 163             }
 164             pw.println("      draw "+
 165                        "  ("+p1+","+ypos+")--"+
 166                        "  ("+p2+","+ypos+")--"+
 167                        "  ("+p3+","+(ypos-(boxHeight/2))+")--"+
 168                        "  ("+p2+","+(ypos-boxHeight)+")--"+
 169                        "  ("+p1+","+(ypos-boxHeight)+")--"+
 170                        "  ("+p1+","+ypos+");");
 171             if (bbd.isLeft()) leftSize += boxHeight;
 172             else              rightSize += boxHeight;
 173         }
 174         pw.println("  endfig;");
 175         pw.println("\\end{emp}");
 176         pw.println("\\end{empfile}");
 177         pw.println("\\end{center}");
 178         pw.println("");
 179
 180         if (tex!=null)
 181             pw.println(tex);
 182     }
 183
 184     // FIXME: merge with BitMask
 185     public class Constant {
 186         public long    setbits   = 0;
 187         public long    clearbits = 0;
 188         public boolean signExtend = false;
 189         public int     numberOffset = 0;
 190         public int     numberWidth = 0;
 191         public Constant(String s) {
 192             if (s.startsWith("0x")) {
 193                 setbits = Long.parseLong(s.substring(2), 16);
 194                 clearbits = ~setbits;
 195             } else if (s.length() == 37) {
 196                 for(int i=36; i>=0; i--) {
 197                     char c = s.charAt(36-i);
 198                     switch(c) {
 199                         case '0': clearbits |= (1<<i); break;
 200                         case '1': setbits   |= (1<<i); break;
 201                         case '.': break;
 202                         case 's': signExtend = true;  numberOffset = i; numberWidth++; break;
 203                         case 'u': signExtend = false; numberOffset = i; numberWidth++; break;
 204                     }
 205                 }
 206             } else {
 207                 setbits = Long.parseLong(s);
 208                 clearbits = ~setbits;
 209             }
 210         }
 211     }
 212
 213 }