Mercurial Hosting > luan
annotate src/luan/modules/TableLuan.java @ 1803:d1dd61e6dd84 default tip
backtick fix
author | Franklin Schmidt <fschmidt@gmail.com> |
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date | Tue, 07 May 2024 19:45:20 -0600 |
parents | 8d257d56dc42 |
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1 package luan.modules; |
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2 |
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3 import java.util.Comparator; |
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4 import java.util.List; |
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5 import java.util.ArrayList; |
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6 import java.util.Arrays; |
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7 import luan.Luan; |
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8 import luan.LuanTable; |
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9 import luan.LuanFunction; |
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10 import luan.LuanException; |
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11 import luan.LuanRuntimeException; |
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12 |
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13 |
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14 public final class TableLuan { |
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15 |
1562 | 16 public static String concat(Luan luan,LuanTable list,String sep,Integer i,Integer j) throws LuanException { |
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17 int first = i==null ? 1 : i; |
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18 int last = j==null ? list.length(luan) : j; |
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19 StringBuilder buf = new StringBuilder(); |
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20 for( int k=first; k<=last; k++ ) { |
1562 | 21 Object val = list.get(luan,k); |
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22 if( val==null ) |
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23 break; |
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24 if( sep!=null && k > first ) |
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25 buf.append(sep); |
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26 String s = luan.luanToString(val); |
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27 buf.append(s); |
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28 } |
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29 return buf.toString(); |
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30 } |
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31 |
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32 public static void insert(LuanTable list,int pos,Object value) throws LuanException { |
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33 Utils.checkNotNull(list); |
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34 if( list.getMetatable() != null ) |
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35 throw new LuanException("can't insert into a table with a metatable"); |
431 | 36 list.rawInsert(pos,value); |
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37 } |
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38 |
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39 public static Object remove(LuanTable list,int pos) throws LuanException { |
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40 if( list.getMetatable() != null ) |
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41 throw new LuanException("can't remove from a table with a metatable"); |
1708 | 42 try { |
43 return list.removeFromList(pos); | |
44 } catch(IndexOutOfBoundsException e) { | |
45 throw new LuanException("index out of bounds - index="+pos+" length="+list.rawLength()); | |
46 } | |
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47 } |
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48 |
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49 private static interface LessThan { |
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50 public boolean isLessThan(Object o1,Object o2); |
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51 } |
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52 |
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53 public static void sort(Luan luan,LuanTable list,final LuanFunction comp) throws LuanException { |
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54 if( list.getMetatable() != null ) |
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55 throw new LuanException("can't sort a table with a metatable"); |
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56 final LessThan lt; |
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57 if( comp==null ) { |
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58 lt = new LessThan() { |
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59 public boolean isLessThan(Object o1,Object o2) { |
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60 try { |
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61 return luan.isLessThan(o1,o2); |
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62 } catch(LuanException e) { |
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63 throw new LuanRuntimeException(e); |
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64 } |
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65 } |
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66 }; |
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67 } else { |
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68 lt = new LessThan() { |
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69 public boolean isLessThan(Object o1,Object o2) { |
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70 try { |
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71 return Luan.checkBoolean(Luan.first(comp.call(luan,o1,o2))); |
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72 } catch(LuanException e) { |
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73 throw new LuanRuntimeException(e); |
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74 } |
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75 } |
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76 }; |
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77 } |
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78 try { |
431 | 79 list.rawSort( new Comparator<Object>() { |
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80 public int compare(Object o1,Object o2) { |
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81 return lt.isLessThan(o1,o2) ? -1 : lt.isLessThan(o2,o1) ? 1 : 0; |
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82 } |
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83 } ); |
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84 } catch(LuanRuntimeException e) { |
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85 throw (LuanException)e.getCause(); |
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86 } |
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87 } |
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88 |
1562 | 89 public static LuanTable pack(Object... args) throws LuanException { |
90 LuanTable tbl = new LuanTable(Arrays.asList(args)); | |
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91 tbl.rawPut( "n", args.length ); |
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92 return tbl; |
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93 } |
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94 |
1562 | 95 public static Object[] unpack(Luan luan,LuanTable tbl,Integer iFrom,Integer iTo) throws LuanException { |
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96 int from = iFrom!=null ? iFrom : 1; |
1277 | 97 int to; |
98 if( iTo != null ) { | |
99 to = iTo; | |
100 } else { | |
1562 | 101 Integer n = Luan.asInteger( tbl.get(luan,"n") ); |
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102 to = n!=null ? n : tbl.length(luan); |
1277 | 103 } |
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104 List<Object> list = new ArrayList<Object>(); |
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105 for( int i=from; i<=to; i++ ) { |
1562 | 106 list.add( tbl.get(luan,i) ); |
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107 } |
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108 return list.toArray(); |
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109 } |
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110 |
1335 | 111 public static LuanTable copy(LuanTable list,Integer from,Integer to) { |
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112 if( from == null ) |
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113 return new LuanTable(list); |
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114 if( to == null ) |
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115 to = list.rawLength(); |
431 | 116 return list.rawSubList(from,to); |
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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117 } |
57054fa43189
implement table lib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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118 |
1578 | 119 public static void clear(LuanTable tbl) throws LuanException { |
580 | 120 tbl.rawClear(); |
121 } | |
122 | |
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123 public static int hash_value(LuanTable tbl) throws LuanException { |
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124 return tbl.hashValue(); |
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125 } |
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126 |
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127 public static boolean is_empty(LuanTable tbl) throws LuanException { |
1420 | 128 return tbl.isEmpty(); |
1100
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129 } |
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130 |
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131 public static int size(LuanTable tbl) throws LuanException { |
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132 return tbl.rawSize(); |
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133 } |
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134 |
1333
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135 public static LuanTable toTable(Luan luan,Object obj) { |
1267 | 136 return luan.toTable(obj); |
137 } | |
138 | |
1704 | 139 public static boolean is_list(LuanTable tbl) throws LuanException { |
140 return tbl.isList(); | |
141 } | |
142 | |
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57054fa43189
implement table lib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
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143 } |