PSSE_READ Reads the data from a PSS/E RAW data file.
[RECORDS, SECTIONS] = PSSE_READ(RAWFILE_NAME)
[RECORDS, SECTIONS] = PSSE_READ(RAWFILE_NAME, VERBOSE)
Reads the data from a PSS/E RAW data file into a cell array of
strings, corresponding to the lines/records in the file. It
detects the beginning and ending indices of each section as well
as any Q record used to indicate the end of the data.
Input:
RAWFILE_NAME : name of the PSS/E RAW file to be read
(opened directly with FILEREAD)
VERBOSE : 1 to display progress info, 0 (default) otherwise
Output:
RECORDS : a cell array of strings, one for each line in
the file (new line characters not included)
SECTIONS : a struct array with the following fields
first : index into RECORDS of first line of the section
last : index into RECORDS of last line of the section
name : name of the section (if available) extracted
from the 'END OF <NAME> DATA, BEGIN ... DATA'
comment typically found in the terminator line
See also PSSE2MPC.0001 function [records, sections] = psse_read(rawfile_name, verbose) 0002 %PSSE_READ Reads the data from a PSS/E RAW data file. 0003 % [RECORDS, SECTIONS] = PSSE_READ(RAWFILE_NAME) 0004 % [RECORDS, SECTIONS] = PSSE_READ(RAWFILE_NAME, VERBOSE) 0005 % 0006 % Reads the data from a PSS/E RAW data file into a cell array of 0007 % strings, corresponding to the lines/records in the file. It 0008 % detects the beginning and ending indices of each section as well 0009 % as any Q record used to indicate the end of the data. 0010 % 0011 % Input: 0012 % RAWFILE_NAME : name of the PSS/E RAW file to be read 0013 % (opened directly with FILEREAD) 0014 % VERBOSE : 1 to display progress info, 0 (default) otherwise 0015 % 0016 % Output: 0017 % RECORDS : a cell array of strings, one for each line in 0018 % the file (new line characters not included) 0019 % SECTIONS : a struct array with the following fields 0020 % first : index into RECORDS of first line of the section 0021 % last : index into RECORDS of last line of the section 0022 % name : name of the section (if available) extracted 0023 % from the 'END OF <NAME> DATA, BEGIN ... DATA' 0024 % comment typically found in the terminator line 0025 % 0026 % See also PSSE2MPC. 0027 0028 % MATPOWER 0029 % Copyright (c) 2014-2016, Power Systems Engineering Research Center (PSERC) 0030 % by Ray Zimmerman, PSERC Cornell 0031 % 0032 % This file is part of MATPOWER. 0033 % Covered by the 3-clause BSD License (see LICENSE file for details). 0034 % See https://matpower.org for more info. 0035 0036 %% default args 0037 if nargin < 2 0038 verbose = 0; 0039 end 0040 0041 %% define some functions needed for use with CELLFUN 0042 end_of_section = @(s)~isempty(regexp(s, '^(Q|\s*0)[\s]*(/.*)?$', 'once')); 0043 q_record = @(s)~isempty(regexp(s, '^Q', 'once')); 0044 section_name = @(s)regexp(s, '/\s*END OF (.*)\s', 'tokens'); 0045 0046 %% check for regexp split support 0047 if ~have_fcn('regexp_split') 0048 error('psse_read: Sorry, but PSSE2MPC requires support for the ''split'' argument to regexp(), so it does not work on versions of MATLAB prior to 7.3 or Octave prior to 3.8.'); 0049 end 0050 0051 %% read in the file, split on newlines 0052 if verbose 0053 spacers = repmat('.', 1, 56-length(rawfile_name)); 0054 fprintf('Reading file ''%s'' %s', rawfile_name, spacers); 0055 end 0056 str = fileread(rawfile_name); 0057 if verbose 0058 fprintf(' done.\nSplitting into individual lines ...'); 0059 end 0060 records = regexp(str, '\n|\r\n|\r', 'split'); 0061 if verbose 0062 str = sprintf('%d lines read', length(records)); 0063 spacers = repmat('.', 1, 32-length(str)); 0064 fprintf('%s %s ... done.\nAnalyzing sections ...', spacers, str); 0065 end 0066 0067 %% find end of section and/or Q record 0068 eos = find(cellfun(end_of_section, records)); 0069 0070 %% terminate at Q record 0071 qi = find(cellfun(q_record, records(eos))); 0072 if ~isempty(qi) %% remove everything beyond Q record ... 0073 if qi(1) > 1 && eos(qi(1)) - eos(qi(1)-1) > 1 0074 %% ... leaving Q record itself, if it is a section terminator 0075 records(eos(qi(1))+1:end) = []; 0076 eos(qi(1)+1:end) = []; 0077 else 0078 %% ... removing Q record too 0079 records(eos(qi(1)):end) = []; 0080 eos(qi(1):end) = []; 0081 end 0082 end 0083 0084 %% find section extents and names 0085 ns = length(eos) + 1; 0086 i1 = [1 4 eos(1:end-1)+1]; 0087 iN = [3 eos-1]; 0088 names = cell(1, ns); 0089 names{1} = 'ID'; 0090 for k = 2:ns 0091 tmp = regexp(records{eos(k-1)}, 'DATA', 'split'); 0092 if isempty(tmp) %% workaround a bug in MATLAB 7.3 (R2006b) (and possibly earlier) 0093 names{k} = ''; 0094 else 0095 tmp2 = section_name(tmp{1}); 0096 if isempty(tmp2) 0097 names{k} = ''; 0098 else 0099 names{k} = tmp2{1}{1}; 0100 end 0101 end 0102 end 0103 if verbose 0104 str = sprintf('%d sections', ns); 0105 spacers = repmat('.', 1, 45-length(str)); 0106 fprintf('%s %s ... done.\n', spacers, str); 0107 end 0108 0109 %% create the sections struct 0110 sections = struct( 'first', num2cell(i1), ... 0111 'last', num2cell(iN), ... 0112 'name', names );