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1 ## Copyright (C) 2000 Auburn University. All rights reserved. |
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2 ## |
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3 ## This file is part of Octave. |
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4 ## |
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5 ## Octave is free software; you can redistribute it and/or modify it |
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6 ## under the terms of the GNU General Public License as published by the |
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7 ## Free Software Foundation; either version 2, or (at your option) any |
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8 ## later version. |
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9 ## |
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10 ## Octave is distributed in the hope that it will be useful, but WITHOUT |
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11 ## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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12 ## FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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13 ## for more details. |
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14 ## |
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15 ## You should have received a copy of the GNU General Public License |
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16 ## along with Octave; see the file COPYING. If not, write to the Free |
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17 ## Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. |
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18 |
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19 ## -*- texinfo -*- |
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20 ## @deftypefn {Function File} {[@var{idxvec}, @var{errmsg}] =} listidx (@var{listvar}, @var{strlist}) |
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21 ## Return indices of string entries in @var{listvar} that match strings |
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22 ## in @var{strlist}. |
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23 ## |
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24 ## Both @var{listvar} and @var{strlist} may be passed as strings or |
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25 ## string matrices. If they are passed as string matrices, each entry |
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26 ## is processed by @code{deblank} prior to searching for the entries. |
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27 ## |
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28 ## The first output is the vector of indices in @var{listvar}. |
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29 ## |
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30 ## If @var{strlist} contains a string not in @var{listvar}, then |
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31 ## an error message is returned in @var{errmsg}. If only one output |
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32 ## argument is requested, then @var{listidx} prints @var{errmsg} to the |
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33 ## screen and exits with an error. |
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34 ## @end deftypefn |
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35 |
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36 function [idxvec,errmsg] = listidx(listvar,strlist) |
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37 |
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38 if(nargin != 2) |
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39 usage("idxvec = listidx(listvar,strlist)"); |
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40 endif |
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41 |
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42 if(isstr(strlist)) |
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43 tmp = strlist; |
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44 strlist = list(); |
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45 for kk=1:rows(tmp) |
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46 strlist(kk) = deblank(tmp(kk,:)); |
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47 endfor |
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48 endif |
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49 |
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50 if(isstr(listvar)) |
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51 tmp = listvar; |
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52 listvar = list(); |
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53 for kk=1:rows(tmp) |
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54 listvar(kk) = deblank(tmp(kk,:)); |
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55 endfor |
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56 endif |
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57 |
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58 ## initialize size of idxvec (for premature return) |
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59 idxvec = zeros(length(strlist),1); |
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60 |
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61 errmsg = ""; |
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62 if(!is_signal_list(listvar)) |
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63 errmsg = "listvar must be a list of strings"; |
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64 elseif(!is_signal_list(strlist)) |
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65 errmsg = "strlist must be a list of strings"; |
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66 endif |
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67 |
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68 if(length(errmsg)) |
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69 if(nargout < 2) error(errmsg); |
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70 else return; |
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71 endif |
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72 endif |
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73 |
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74 nsigs = length(listvar); |
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75 for idx = 1:length(strlist) |
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76 signame = nth(strlist,idx); |
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77 for jdx = 1:nsigs |
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78 if( strcmp(signame,nth(listvar,jdx)) ) |
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79 if(idxvec(idx) != 0) |
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80 warning("Duplicate signal name %s (%d,%d)\n", ... |
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81 nth(listvar,jdx),jdx,idxvec(idx)); |
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82 else |
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83 idxvec(idx) = jdx; |
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84 endif |
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85 endif |
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86 endfor |
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87 if(idxvec(idx) == 0) |
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88 errmsg = sprintf("Did not find %s",signame); |
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89 if(nargout == 1) |
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90 error(errmsg); |
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91 else |
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92 break |
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93 end |
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94 endif |
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95 endfor |
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96 |
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97 endfunction |
