| 1 | /* |
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| 2 | * ---------------------------------------------------------------------- |
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| 3 | * INTERFACE: Octave Rappture Library Source |
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| 4 | * |
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| 5 | * [retStr,err] = rpLibGet(libHandle,path) |
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| 6 | * |
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| 7 | * ====================================================================== |
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| 8 | * AUTHOR: Derrick Kearney, Purdue University |
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| 9 | * Copyright (c) 2005 |
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| 10 | * Purdue Research Foundation, West Lafayette, IN |
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| 11 | * ====================================================================== |
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| 12 | */ |
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| 13 | |
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| 14 | #include "RpOctaveInterface.h" |
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| 15 | |
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| 16 | /**********************************************************************/ |
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| 17 | // METHOD: [retStr,err] = rpLibGet(libHandle,path) |
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| 18 | /// Query the value of a node. |
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| 19 | /** |
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| 20 | * Clients use this to query the value of a node. If the path |
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| 21 | * is not specified, it returns the value associated with the |
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| 22 | * root node. Otherwise, it returns the value for the element |
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| 23 | * specified by the path. Values are returned as strings. |
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| 24 | * |
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| 25 | * Error code, err=0 on success, anything else is failure. |
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| 26 | */ |
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| 27 | |
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| 28 | DEFUN_DLD (rpLibGet, args, , |
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| 29 | "-*- texinfo -*-\n\ |
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| 30 | [retStr,err] = rpLibGet(@var{libHandle},@var{path})\n\ |
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| 31 | \n\ |
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| 32 | Clients use this to query the value of a node. If the path\n\ |
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| 33 | is not specified, it returns the value associated with the\n\ |
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| 34 | root node. Otherwise, it returns the value for the element\n\ |
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| 35 | specified by the path. Values are returned as strings.\n\ |
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| 36 | Error code, err=0 on success, anything else is failure.") |
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| 37 | { |
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| 38 | static std::string who = "rpLibGet"; |
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| 39 | |
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| 40 | // The list of values to return. |
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| 41 | octave_value_list retval; |
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| 42 | int err = 1; |
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| 43 | int nargin = args.length (); |
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| 44 | std::string path = ""; |
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| 45 | int libHandle = 0; |
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| 46 | RpLibrary* lib = NULL; |
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| 47 | std::string retStr = ""; |
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| 48 | |
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| 49 | if (nargin == 2) { |
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| 50 | |
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| 51 | if ( args(0).is_real_scalar () && |
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| 52 | args(1).is_string () ) { |
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| 53 | |
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| 54 | libHandle = args(0).int_value (); |
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| 55 | path = args(1).string_value (); |
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| 56 | |
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| 57 | /* Call the C subroutine. */ |
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| 58 | // path can be an empty string |
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| 59 | if ( (libHandle >= 0) ) { |
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| 60 | |
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| 61 | lib = (RpLibrary*) getObject_Void(libHandle); |
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| 62 | |
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| 63 | if (lib) { |
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| 64 | retStr = lib->get(path); |
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| 65 | err = 0; |
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| 66 | } |
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| 67 | else { |
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| 68 | // lib was null (not found in dictionary) |
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| 69 | } |
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| 70 | } |
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| 71 | else { |
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| 72 | // invalid libHandle |
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| 73 | _PRINT_USAGE (who.c_str()); |
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| 74 | } |
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| 75 | } |
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| 76 | else { |
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| 77 | // wrong arg types |
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| 78 | _PRINT_USAGE (who.c_str()); |
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| 79 | } |
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| 80 | } |
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| 81 | else { |
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| 82 | // wrong number of args. |
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| 83 | _PRINT_USAGE (who.c_str()); |
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| 84 | } |
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| 85 | |
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| 86 | retval(0) = retStr; |
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| 87 | retval(1) = err; |
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| 88 | return retval; |
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| 89 | } |
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