1.1 --- a/doc/lgf.dox Wed Sep 22 09:24:07 2010 +0200
1.2 +++ b/doc/lgf.dox Thu Aug 04 21:12:46 2011 +0200
1.3 @@ -63,11 +63,11 @@
1.4 3 (40,10) 10 "Third node"
1.5 \endcode
1.6
1.7 -The \c \@arcs section is very similar to the \c \@nodes section,
1.8 -it again starts with a header line describing the names of the maps,
1.9 -but the \c "label" map is not obligatory here. The following lines
1.10 -describe the arcs. The first two tokens of each line are
1.11 -the source and the target node of the arc, respectively, then come the map
1.12 +The \c \@arcs section is very similar to the \c \@nodes section, it
1.13 +again starts with a header line describing the names of the maps, but
1.14 +the \c "label" map is not obligatory here. The following lines
1.15 +describe the arcs. The first two tokens of each line are the source
1.16 +and the target node of the arc, respectively, then come the map
1.17 values. The source and target tokens must be node labels.
1.18
1.19 \code
1.20 @@ -78,10 +78,21 @@
1.21 2 3 18
1.22 \endcode
1.23
1.24 +If there is no map in the \c \@arcs section at all, then it must be
1.25 +indicated by a sole '-' sign in the first line.
1.26 +
1.27 +\code
1.28 + @arcs
1.29 + -
1.30 + 1 2
1.31 + 1 3
1.32 + 2 3
1.33 +\endcode
1.34 +
1.35 The \c \@edges is just a synonym of \c \@arcs. The \@arcs section can
1.36 also store the edge set of an undirected graph. In such case there is
1.37 a conventional method for store arc maps in the file, if two columns
1.38 -has the same caption with \c '+' and \c '-' prefix, then these columns
1.39 +have the same caption with \c '+' and \c '-' prefix, then these columns
1.40 can be regarded as the values of an arc map.
1.41
1.42 The \c \@attributes section contains key-value pairs, each line
2.1 --- a/lemon/lgf_reader.h Wed Sep 22 09:24:07 2010 +0200
2.2 +++ b/lemon/lgf_reader.h Thu Aug 04 21:12:46 2011 +0200
2.3 @@ -2,7 +2,7 @@
2.4 *
2.5 * This file is a part of LEMON, a generic C++ optimization library.
2.6 *
2.7 - * Copyright (C) 2003-2008
2.8 + * Copyright (C) 2003-2011
2.9 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
2.10 * (Egervary Research Group on Combinatorial Optimization, EGRES).
2.11 *
2.12 @@ -965,6 +965,13 @@
2.13 std::string map;
2.14 int index = 0;
2.15 while (_reader_bits::readToken(line, map)) {
2.16 + if(map == "-") {
2.17 + if(index!=0)
2.18 + throw FormatError("'-' is not allowed as a map name");
2.19 + else if (line >> std::ws >> c)
2.20 + throw FormatError("Extra character at the end of line");
2.21 + else break;
2.22 + }
2.23 if (maps.find(map) != maps.end()) {
2.24 std::ostringstream msg;
2.25 msg << "Multiple occurence of arc map: " << map;
2.26 @@ -1807,6 +1814,13 @@
2.27 std::string map;
2.28 int index = 0;
2.29 while (_reader_bits::readToken(line, map)) {
2.30 + if(map == "-") {
2.31 + if(index!=0)
2.32 + throw FormatError("'-' is not allowed as a map name");
2.33 + else if (line >> std::ws >> c)
2.34 + throw FormatError("Extra character at the end of line");
2.35 + else break;
2.36 + }
2.37 if (maps.find(map) != maps.end()) {
2.38 std::ostringstream msg;
2.39 msg << "Multiple occurence of edge map: " << map;
3.1 --- a/test/CMakeLists.txt Wed Sep 22 09:24:07 2010 +0200
3.2 +++ b/test/CMakeLists.txt Thu Aug 04 21:12:46 2011 +0200
3.3 @@ -18,6 +18,7 @@
3.4 graph_utils_test
3.5 heap_test
3.6 kruskal_test
3.7 + lgf_test
3.8 maps_test
3.9 random_test
3.10 path_test
4.1 --- a/test/Makefile.am Wed Sep 22 09:24:07 2010 +0200
4.2 +++ b/test/Makefile.am Thu Aug 04 21:12:46 2011 +0200
4.3 @@ -18,6 +18,7 @@
4.4 test/graph_utils_test \
4.5 test/heap_test \
4.6 test/kruskal_test \
4.7 + test/lgf_test \
4.8 test/maps_test \
4.9 test/random_test \
4.10 test/path_test \
4.11 @@ -41,6 +42,7 @@
4.12 test_graph_utils_test_SOURCES = test/graph_utils_test.cc
4.13 test_heap_test_SOURCES = test/heap_test.cc
4.14 test_kruskal_test_SOURCES = test/kruskal_test.cc
4.15 +test_lgf_test_SOURCES = test/lgf_test.cc
4.16 test_maps_test_SOURCES = test/maps_test.cc
4.17 test_path_test_SOURCES = test/path_test.cc
4.18 test_random_test_SOURCES = test/random_test.cc
5.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
5.2 +++ b/test/lgf_test.cc Thu Aug 04 21:12:46 2011 +0200
5.3 @@ -0,0 +1,169 @@
5.4 +/* -*- mode: C++; indent-tabs-mode: nil; -*-
5.5 + *
5.6 + * This file is a part of LEMON, a generic C++ optimization library.
5.7 + *
5.8 + * Copyright (C) 2003-2011
5.9 + * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
5.10 + * (Egervary Research Group on Combinatorial Optimization, EGRES).
5.11 + *
5.12 + * Permission to use, modify and distribute this software is granted
5.13 + * provided that this copyright notice appears in all copies. For
5.14 + * precise terms see the accompanying LICENSE file.
5.15 + *
5.16 + * This software is provided "AS IS" with no warranty of any kind,
5.17 + * express or implied, and with no claim as to its suitability for any
5.18 + * purpose.
5.19 + *
5.20 + */
5.21 +
5.22 +#include <lemon/list_graph.h>
5.23 +#include <lemon/lgf_reader.h>
5.24 +#include "test_tools.h"
5.25 +
5.26 +using namespace lemon;
5.27 +
5.28 +char test_lgf[] =
5.29 + "@nodes\n"
5.30 + "label\n"
5.31 + "0\n"
5.32 + "1\n"
5.33 + "@arcs\n"
5.34 + " label\n"
5.35 + "0 1 0\n"
5.36 + "1 0 1\n"
5.37 + "@attributes\n"
5.38 + "source 0\n"
5.39 + "target 1\n";
5.40 +
5.41 +char test_lgf_nomap[] =
5.42 + "@nodes\n"
5.43 + "label\n"
5.44 + "0\n"
5.45 + "1\n"
5.46 + "@arcs\n"
5.47 + " -\n"
5.48 + "0 1\n";
5.49 +
5.50 +char test_lgf_bad1[] =
5.51 + "@nodes\n"
5.52 + "label\n"
5.53 + "0\n"
5.54 + "1\n"
5.55 + "@arcs\n"
5.56 + " - another\n"
5.57 + "0 1\n";
5.58 +
5.59 +char test_lgf_bad2[] =
5.60 + "@nodes\n"
5.61 + "label\n"
5.62 + "0\n"
5.63 + "1\n"
5.64 + "@arcs\n"
5.65 + " label -\n"
5.66 + "0 1\n";
5.67 +
5.68 +
5.69 +int main()
5.70 +{
5.71 + {
5.72 + ListDigraph d;
5.73 + ListDigraph::Node s,t;
5.74 + ListDigraph::ArcMap<int> label(d);
5.75 + std::istringstream input(test_lgf);
5.76 + digraphReader(d, input).
5.77 + node("source", s).
5.78 + node("target", t).
5.79 + arcMap("label", label).
5.80 + run();
5.81 + check(countNodes(d) == 2,"There should be 2 nodes");
5.82 + check(countArcs(d) == 2,"There should be 2 arcs");
5.83 + }
5.84 + {
5.85 + ListGraph g;
5.86 + ListGraph::Node s,t;
5.87 + ListGraph::EdgeMap<int> label(g);
5.88 + std::istringstream input(test_lgf);
5.89 + graphReader(g, input).
5.90 + node("source", s).
5.91 + node("target", t).
5.92 + edgeMap("label", label).
5.93 + run();
5.94 + check(countNodes(g) == 2,"There should be 2 nodes");
5.95 + check(countEdges(g) == 2,"There should be 2 arcs");
5.96 + }
5.97 +
5.98 + {
5.99 + ListDigraph d;
5.100 + std::istringstream input(test_lgf_nomap);
5.101 + digraphReader(d, input).
5.102 + run();
5.103 + check(countNodes(d) == 2,"There should be 2 nodes");
5.104 + check(countArcs(d) == 1,"There should be 1 arc");
5.105 + }
5.106 + {
5.107 + ListGraph g;
5.108 + std::istringstream input(test_lgf_nomap);
5.109 + graphReader(g, input).
5.110 + run();
5.111 + check(countNodes(g) == 2,"There should be 2 nodes");
5.112 + check(countEdges(g) == 1,"There should be 1 edge");
5.113 + }
5.114 +
5.115 + {
5.116 + ListDigraph d;
5.117 + std::istringstream input(test_lgf_bad1);
5.118 + bool ok=false;
5.119 + try {
5.120 + digraphReader(d, input).
5.121 + run();
5.122 + }
5.123 + catch (FormatError& error)
5.124 + {
5.125 + ok = true;
5.126 + }
5.127 + check(ok,"FormatError exception should have occured");
5.128 + }
5.129 + {
5.130 + ListGraph g;
5.131 + std::istringstream input(test_lgf_bad1);
5.132 + bool ok=false;
5.133 + try {
5.134 + graphReader(g, input).
5.135 + run();
5.136 + }
5.137 + catch (FormatError& error)
5.138 + {
5.139 + ok = true;
5.140 + }
5.141 + check(ok,"FormatError exception should have occured");
5.142 + }
5.143 +
5.144 + {
5.145 + ListDigraph d;
5.146 + std::istringstream input(test_lgf_bad2);
5.147 + bool ok=false;
5.148 + try {
5.149 + digraphReader(d, input).
5.150 + run();
5.151 + }
5.152 + catch (FormatError& error)
5.153 + {
5.154 + ok = true;
5.155 + }
5.156 + check(ok,"FormatError exception should have occured");
5.157 + }
5.158 + {
5.159 + ListGraph g;
5.160 + std::istringstream input(test_lgf_bad2);
5.161 + bool ok=false;
5.162 + try {
5.163 + graphReader(g, input).
5.164 + run();
5.165 + }
5.166 + catch (FormatError& error)
5.167 + {
5.168 + ok = true;
5.169 + }
5.170 + check(ok,"FormatError exception should have occured");
5.171 + }
5.172 +}