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// Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
// Copyright (C) DIGITEO - 2009-2010 - Allan CORNET
//
// This file must be used under the terms of the CeCILL.
// This source file is licensed as described in the file COPYING, which
// you should have received as part of this distribution. The terms
// are also available at
// http://www.cecill.info/licences/Licence_CeCILL_V2.1-en.txt
function [strs, matched_separators] = %_strsplit(varargin)
//====== private macros ==================
function out_str = replace_regexp_char(in_str)
out_str = strsubst(in_str, "\", "\\");
out_str = strsubst(out_str, "/", "\/");
out_str = strsubst(out_str, "|", "\|");
out_str = strsubst(out_str, ".", "\.");
out_str = strsubst(out_str, "$", "\$");
out_str = strsubst(out_str, "[", "\[");
out_str = strsubst(out_str, "]", "\]");
out_str = strsubst(out_str, "(", "\(");
out_str = strsubst(out_str, ")", "\)");
out_str = strsubst(out_str, "{", "\{");
out_str = strsubst(out_str, "}", "\}");
out_str = strsubst(out_str, "^", "\^");
out_str = strsubst(out_str, "?", "\?");
out_str = strsubst(out_str, "*", "\*");
out_str = strsubst(out_str, "+", "\+");
out_str = strsubst(out_str, "-", "\-");
endfunction
//========================================
function bOK = isPattern(str)
bOK = %f;
lenstr = length(str);
if lenstr > 1 then
bOK = ((part(str, 1) == "/") & (part(str, lenstr) == "/"));
end
endfunction
//========================================
function regexp_pattern = createPattern(StringsInput)
dims_StringsInput = size(StringsInput,"*");
if (dims_StringsInput == 1) then
if ~isPattern(StringsInput) then
regexp_pattern = "/" + replace_regexp_char(StringsInput) + "/";
else
regexp_pattern = StringsInput;
end
else
regexp_pattern = "";
for i = 1:dims_StringsInput
if (i == 1) then
regexp_pattern = replace_regexp_char(StringsInput(i));
else
regexp_pattern = regexp_pattern + "|" + replace_regexp_char(StringsInput(i));
end
end
regexp_pattern = "/" + regexp_pattern + "/";
end
endfunction
//========================================
matched_separators = [];
strs = [];
[lhs, rhs] = argn(0);
// input types are checked in strsplit primitive
if (rhs == 1) then
len = length(varargin(1));
if len == 0 then
strs = "";
else
len = length(varargin(1));
if len > 1 then
strs = strsplit( varargin(1), 1:len - 1 );
else
strs = varargin(1);
end
end
if (lhs == 2) then
dims_strs = size(strs);
matched_separators = emptystr(dims_strs(1), dims_strs(2));
end
else
strsplit_limit = -1; // no limit
if (rhs == 3) then
strsplit_limit = varargin(3);
end
if varargin(2) == "" then
[strs, matched_separators] = strsplit(varargin(1));
else
strsplit_pattern = createPattern(varargin(2));
[start_regexp, end_regexp, match_regexp] = regexp(varargin(1), strsplit_pattern);
if (start_regexp <> []) then
if (end_regexp($) == length(varargin(1))) then
end_regexp($) = end_regexp($) - 1;
end
len = length(varargin(1));
if len > 1 then
strs = strsplit(varargin(1), end_regexp);
strs = strsubst(strs, strsplit_pattern, "", "r");
matched_separators = match_regexp;
else
strs = varargin(1);
matched_separators = [];
end
else
strs = varargin(1);
matched_separators = [];
end
end
if (strsplit_limit > 0) then
dim_strs = size(strs,"*");
if (strsplit_limit >= dim_strs) then
strsplit_limit = dim_strs;
else
strsremain = strs(strsplit_limit + 1 : $);
dim_strsremain = size(strsremain,"*");
strslimited = strs(1:strsplit_limit);
foundedremain = matched_separators(strsplit_limit + 1 : $);
foundedremain($ + 1: dim_strsremain) = "";
matched_separators = matched_separators(1:strsplit_limit);
str = strsremain + foundedremain;
strs = [strslimited ; strcat(str)];
end
end
end
//========================================
endfunction
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