wasCSharpSQLite – Blame information for rev
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1 | office | 1 | /* |
2 | * WhileCmd.java |
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3 | * |
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4 | * Copyright (c) 1997 Cornell University. |
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5 | * Copyright (c) 1997 Sun Microsystems, Inc. |
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6 | * |
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7 | * See the file "license.terms" for information on usage and |
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8 | * redistribution of this file, and for a DISCLAIMER OF ALL |
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9 | * WARRANTIES. |
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10 | * |
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11 | * Included in SQLite3 port to C# for use in testharness only; 2008 Noah B Hart |
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12 | * |
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13 | * RCS @(#) $Id: WhileCmd.java,v 1.1.1.1 1998/10/14 21:09:20 cvsadmin Exp $ |
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14 | * |
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15 | */ |
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16 | using System; |
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17 | namespace tcl.lang |
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18 | { |
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19 | |||
20 | /// <summary> This class implements the built-in "while" command in Tcl.</summary> |
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21 | |||
22 | class WhileCmd : Command |
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23 | { |
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24 | /// <summary> This procedure is invoked to process the "while" Tcl command. |
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25 | /// See the user documentation for details on what it does. |
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26 | /// |
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27 | /// </summary> |
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28 | /// <param name="interp">the current interpreter. |
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29 | /// </param> |
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30 | /// <param name="argv">command arguments. |
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31 | /// </param> |
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32 | /// <exception cref=""> TclException if script causes error. |
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33 | /// </exception> |
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34 | |||
35 | public TCL.CompletionCode cmdProc( Interp interp, TclObject[] argv ) |
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36 | { |
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37 | if ( argv.Length != 3 ) |
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38 | { |
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39 | throw new TclNumArgsException( interp, 1, argv, "test command" ); |
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40 | } |
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41 | |||
42 | string test = argv[1].ToString(); |
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43 | TclObject command = argv[2]; |
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44 | |||
45 | { |
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46 | while ( interp.expr.evalBoolean( interp, test ) ) |
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47 | { |
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48 | try |
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49 | { |
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50 | interp.eval( command, 0 ); |
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51 | } |
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52 | catch ( TclException e ) |
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53 | { |
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54 | switch ( e.getCompletionCode() ) |
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55 | { |
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56 | |||
57 | case TCL.CompletionCode.BREAK: |
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58 | goto loop_brk; |
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59 | |||
60 | |||
61 | case TCL.CompletionCode.CONTINUE: |
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62 | continue; |
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63 | |||
64 | |||
65 | case TCL.CompletionCode.ERROR: |
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66 | interp.addErrorInfo( "\n (\"while\" body line " + interp.errorLine + ")" ); |
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67 | throw; |
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68 | |||
69 | |||
70 | default: |
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71 | throw; |
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72 | |||
73 | } |
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74 | } |
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75 | } |
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76 | } |
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77 | |||
78 | loop_brk: |
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79 | ; |
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80 | |||
81 | |||
82 | interp.resetResult(); |
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83 | return TCL.CompletionCode.RETURN; |
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84 | } |
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85 | } |
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86 | } |