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ls-oct-ascii.h
Package: octave-3.0.3.tar.gz [view]
Upload User: qianxunqiu
Upload Date: 2015-11-11
Package Size: 11485k
Code Size: 4k
Category:
Other systems
Development Platform:
Matlab
- /*
- Copyright (C) 2003, 2004, 2005, 2006, 2007 John W. Eaton
- This file is part of Octave.
- Octave is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by the
- Free Software Foundation; either version 3 of the License, or (at your
- option) any later version.
- Octave is distributed in the hope that it will be useful, but WITHOUT
- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- for more details.
- You should have received a copy of the GNU General Public License
- along with Octave; see the file COPYING. If not, see
- <http://www.gnu.org/licenses/>.
- */
- #if !defined (octave_ls_oct_ascii_h)
- #define octave_ls_oct_ascii_h 1
- #include <cfloat>
- #include <sstream>
- #include <string>
- #include "str-vec.h"
- // Flag for cell elements
- #define CELL_ELT_TAG "<cell-element>"
- // Used when converting Inf to something that gnuplot can read.
- #ifndef OCT_RBV
- #define OCT_RBV DBL_MAX / 100.0
- #endif
- extern OCTINTERP_API std::string
- extract_keyword (std::istream& is, const char *keyword,
- const bool next_only = false);
- extern OCTINTERP_API std::string
- read_ascii_data (std::istream& is, const std::string& filename, bool& global,
- octave_value& tc, octave_idx_type count);
- extern OCTINTERP_API bool
- save_ascii_data (std::ostream& os, const octave_value& val_arg,
- const std::string& name, bool mark_as_global, int precision);
- extern OCTINTERP_API bool
- save_ascii_data_for_plotting (std::ostream& os, const octave_value& t,
- const std::string& name);
- extern OCTINTERP_API bool
- save_three_d (std::ostream& os, const octave_value& t,
- bool parametric = false);
- // Match KEYWORD on stream IS, placing the associated value in VALUE,
- // returning TRUE if successful and FALSE otherwise.
- //
- // Input should look something like:
- //
- // [%#][ t]*keyword[ t]*int-value.*n
- template <class T>
- bool
- extract_keyword (std::istream& is, const char *keyword, T& value,
- const bool next_only = false)
- {
- bool status = false;
- value = 0;
- char c;
- while (is.get (c))
- {
- if (c == '%' || c == '#')
- {
- std::ostringstream buf;
- while (is.get (c) && (c == ' ' || c == 't' || c == '%' || c == '#'))
- ; // Skip whitespace and comment characters.
- if (isalpha (c))
- buf << c;
- while (is.get (c) && isalpha (c))
- buf << c;
- std::string tmp = buf.str ();
- bool match = (tmp.compare (0, strlen (keyword), keyword) == 0);
- if (match)
- {
- while (is.get (c) && (c == ' ' || c == 't' || c == ':'))
- ; // Skip whitespace and the colon.
- is.putback (c);
- if (c != 'n' && c != 'r')
- is >> value;
- if (is)
- status = true;
- while (is.get (c) && c != 'n' && c != 'r')
- ; // Skip to beginning of next line;
- break;
- }
- else if (next_only)
- break;
- }
- }
- return status;
- }
- // Match one of the elements in KEYWORDS on stream IS, placing the
- // matched keyword in KW and the associated value in VALUE,
- // returning TRUE if successful and FALSE otherwise.
- //
- // Input should look something like:
- //
- // [%#][ t]*keyword[ t]*int-value.*n
- template <class T>
- bool
- extract_keyword (std::istream& is, const string_vector& keywords,
- std::string& kw, T& value, const bool next_only = false)
- {
- bool status = false;
- kw = "";
- value = 0;
- char c;
- while (is.get (c))
- {
- if (c == '%' || c == '#')
- {
- std::ostringstream buf;
- while (is.get (c) && (c == ' ' || c == 't' || c == '%' || c == '#'))
- ; // Skip whitespace and comment characters.
- if (isalpha (c))
- buf << c;
- while (is.get (c) && isalpha (c))
- buf << c;
- std::string tmp = buf.str ();
- for (int i = 0; i < keywords.length (); i++)
- {
- int match = (tmp == keywords[i]);
- if (match)
- {
- kw = keywords[i];
- while (is.get (c) && (c == ' ' || c == 't' || c == ':'))
- ; // Skip whitespace and the colon.
- is.putback (c);
- if (c != 'n' && c != 'r')
- is >> value;
- if (is)
- status = true;
- while (is.get (c) && c != 'n' && c != 'r')
- ; // Skip to beginning of next line;
- return status;
- }
- }
- if (next_only)
- break;
- }
- }
- return status;
- }
- #endif
- /*
- ;;; Local Variables: ***
- ;;; mode: C++ ***
- ;;; End: ***
- */