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/* vim: set sw=8: -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* mps.h: The main header file for the MPS file importer.
*
* Authors:
* Jukka-Pekka Iivonen <jiivonen@hutcs.cs.hut.fi>
* File handling code copied from Dif module.
*
* MPS importer module. MPS format is a de facto standard ASCII format
* among most of the commercial LP solvers.
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef GNUMERIC_PLUGINS_MPS_H
#define GNUMERIC_PLUGINS_MPS_H 1
#include <gsf/gsf-input-textline.h>
#define N_INPUT_LINES_BETWEEN_UPDATES 50
#define MAX_COL 160
/*************************************************************************
*
* Data structures.
*/
/*
* MPS Row type (E, L, G, or N).
*/
typedef enum {
EqualityRow, LessOrEqualRow, GreaterOrEqualRow, ObjectiveRow
} MpsRowType;
/*
* MPS Row.
*/
typedef struct {
MpsRowType type;
gchar *name;
gint index;
} MpsRow;
/*
* MPS Column.
*/
typedef struct {
gchar *name;
MpsRow *row;
gnm_float value;
} MpsCol;
/*
* MPS Range.
*/
typedef struct {
gchar *name;
MpsRow *row;
gnm_float value;
} MpsRange;
/*
* MPS Bound type (LO, UP, FX, FR, MI, BV, LI, or UI).
*/
typedef enum {
LowerBound, UpperBound, FixedVariable, FreeVariable, LowerBoundInf,
BinaryVariable, LowerBoundInt, UpperBoundInt
} MpsBoundType;
/*
* MPS Bound.
*/
typedef struct {
char *name;
gint col_index;
gnm_float value;
MpsBoundType type;
} MpsBound;
/*
* MPS RHS.
*/
typedef struct {
gchar *name;
MpsRow *row;
gnm_float value;
} MpsRhs;
/*
* Column mapping.
*/
typedef struct {
gchar *name;
gint index;
} MpsColInfo;
/*
* Input context.
*/
typedef struct {
IOContext *io_context;
GsfInputTextline *input;
gint line_no;
gchar *line;
Sheet *sheet;
gchar *name;
GSList *rows;
GSList *cols;
GSList *rhs;
GSList *bounds;
gint n_rows, n_cols, n_bounds;
GHashTable *row_hash;
GHashTable *col_hash;
gchar **col_name_tbl;
MpsRow *objective_row;
gnm_float **matrix;
} MpsInputContext;
/*************************************************************************
*
* Constants.
*/
static const int MAIN_INFO_ROW = 1;
static const int MAIN_INFO_COL = 0;
static const int OBJECTIVE_VALUE_COL = 1;
static const int VARIABLE_COL = 1;
static const int VARIABLE_ROW = 5;
static const int CONSTRAINT_COL = 1;
static const int CONSTRAINT_ROW = 10;
/*************************************************************************
*
* The Public Interface of the module
*/
/* Reads the MPS file in and creates a spreadsheet model of it. */
void mps_file_open (GnmFileOpener const *fo, IOContext *io_context,
WorkbookView *wbv, GsfInput *input);
void mps_parse_file (MpsInputContext *ctxt);
gboolean mps_add_row (MpsInputContext *ctxt, MpsRowType type, gchar *txt);
#endif
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