Add the LEMON graph library source to the repo

I'll likely be using it, so this just makes it easier to get to from
elsewhere. If I end up not using it then I can just delete it.

11 files changed, 1502 insertions, 0 deletions

diff --git a/lemon/demo/.deps/arg_parser_demo.Po b/lemon/demo/.deps/arg_parser_demo.Po
new file mode 100644
index 0000000..9ce06a8
--- /dev/null
+++ b/lemon/demo/.deps/arg_parser_demo.Po
@@ -0,0 +1 @@
+# dummy
diff --git a/lemon/demo/.deps/graph_to_eps_demo.Po b/lemon/demo/.deps/graph_to_eps_demo.Po
new file mode 100644
index 0000000..9ce06a8
--- /dev/null
+++ b/lemon/demo/.deps/graph_to_eps_demo.Po
@@ -0,0 +1 @@
+# dummy
diff --git a/lemon/demo/.deps/lgf_demo.Po b/lemon/demo/.deps/lgf_demo.Po
new file mode 100644
index 0000000..9ce06a8
--- /dev/null
+++ b/lemon/demo/.deps/lgf_demo.Po
@@ -0,0 +1 @@
+# dummy
diff --git a/lemon/demo/CMakeLists.txt b/lemon/demo/CMakeLists.txt
new file mode 100644
index 0000000..e0566f4
--- /dev/null
+++ b/lemon/demo/CMakeLists.txt
@@ -0,0 +1,19 @@
+INCLUDE_DIRECTORIES(
+  ${PROJECT_SOURCE_DIR}
+  ${PROJECT_BINARY_DIR}
+)
+
+LINK_DIRECTORIES(
+  ${PROJECT_BINARY_DIR}/lemon
+)
+
+SET(DEMOS
+  arg_parser_demo
+  graph_to_eps_demo
+  lgf_demo
+)
+
+FOREACH(DEMO_NAME ${DEMOS})
+  ADD_EXECUTABLE(${DEMO_NAME} ${DEMO_NAME}.cc)
+  TARGET_LINK_LIBRARIES(${DEMO_NAME} lemon)
+ENDFOREACH()
diff --git a/lemon/demo/Makefile b/lemon/demo/Makefile
new file mode 100644
index 0000000..77521a3
--- /dev/null
+++ b/lemon/demo/Makefile
@@ -0,0 +1,523 @@
+# Makefile.in generated by automake 1.11.1 from Makefile.am.
+# demo/Makefile.  Generated from Makefile.in by configure.
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005, 2006, 2007, 2008, 2009  Free Software Foundation,
+# Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+
+
+
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+pkgincludedir = $(includedir)/lemon
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+POST_INSTALL = :
+NORMAL_UNINSTALL = :
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+host_triplet = x86_64-unknown-linux-gnu
+noinst_PROGRAMS = arg_parser_demo$(EXEEXT) graph_to_eps_demo$(EXEEXT) \
+	lgf_demo$(EXEEXT)
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+PACKAGE_BUGREPORT = lemon-user@lemon.cs.elte.hu
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+PACKAGE_STRING = LEMON 1.2.3
+PACKAGE_TARNAME = lemon
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+	digraph.lgf
+
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+graph_to_eps_demo_SOURCES = graph_to_eps_demo.cc
+lgf_demo_SOURCES = lgf_demo.cc
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+	install install-am install-data install-data-am install-dvi \
+	install-dvi-am install-exec install-exec-am install-html \
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index 0000000..800cd01
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+
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+	graph_to_eps_demo \
+	lgf_demo
+
+arg_parser_demo_SOURCES = arg_parser_demo.cc
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+lgf_demo_SOURCES = lgf_demo.cc
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new file mode 100644
index 0000000..3e2e039
--- /dev/null
+++ b/lemon/demo/Makefile.in
@@ -0,0 +1,523 @@
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+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am:
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-noinstPROGRAMS ctags distclean \
+	distclean-compile distclean-generic distclean-libtool \
+	distclean-tags distdir dvi dvi-am html html-am info info-am \
+	install install-am install-data install-data-am install-dvi \
+	install-dvi-am install-exec install-exec-am install-html \
+	install-html-am install-info install-info-am install-man \
+	install-pdf install-pdf-am install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am tags uninstall uninstall-am
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/lemon/demo/arg_parser_demo.cc b/lemon/demo/arg_parser_demo.cc
new file mode 100644
index 0000000..1bafac0
--- /dev/null
+++ b/lemon/demo/arg_parser_demo.cc
@@ -0,0 +1,112 @@
+/* -*- mode: C++; indent-tabs-mode: nil; -*-
+ *
+ * This file is a part of LEMON, a generic C++ optimization library.
+ *
+ * Copyright (C) 2003-2010
+ * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
+ * (Egervary Research Group on Combinatorial Optimization, EGRES).
+ *
+ * Permission to use, modify and distribute this software is granted
+ * provided that this copyright notice appears in all copies. For
+ * precise terms see the accompanying LICENSE file.
+ *
+ * This software is provided "AS IS" with no warranty of any kind,
+ * express or implied, and with no claim as to its suitability for any
+ * purpose.
+ *
+ */
+
+///\ingroup demos
+///\file
+///\brief Argument parser demo
+///
+/// This example shows how the argument parser can be used.
+///
+/// \include arg_parser_demo.cc
+
+#include <lemon/arg_parser.h>
+
+using namespace lemon;
+int main(int argc, char **argv)
+{
+  // Initialize the argument parser
+  ArgParser ap(argc, argv);
+  int i;
+  std::string s;
+  double d = 1.0;
+  bool b, nh;
+  bool g1, g2, g3;
+
+  // Add a mandatory integer option with storage reference
+  ap.refOption("n", "An integer input.", i, true);
+  // Add a double option with storage reference (the default value is 1.0)
+  ap.refOption("val", "A double input.", d);
+  // Add a double option without storage reference (the default value is 3.14)
+  ap.doubleOption("val2", "A double input.", 3.14);
+  // Set synonym for -val option
+  ap.synonym("vals", "val");
+  // Add a string option
+  ap.refOption("name", "A string input.", s);
+  // Add bool options
+  ap.refOption("f", "A switch.", b)
+    .refOption("nohelp", "", nh)
+    .refOption("gra", "Choice A", g1)
+    .refOption("grb", "Choice B", g2)
+    .refOption("grc", "Choice C", g3);
+  // Bundle -gr* options into a group
+  ap.optionGroup("gr", "gra")
+    .optionGroup("gr", "grb")
+    .optionGroup("gr", "grc");
+  // Set the group mandatory
+  ap.mandatoryGroup("gr");
+  // Set the options of the group exclusive (only one option can be given)
+  ap.onlyOneGroup("gr");
+  // Add non-parsed arguments (e.g. input files)
+  ap.other("infile", "The input file.")
+    .other("...");
+
+  // Throw an exception when problems occurs. The default behavior is to
+  // exit(1) on these cases, but this makes Valgrind falsely warn
+  // about memory leaks.
+  ap.throwOnProblems();
+
+  // Perform the parsing process
+  // (in case of any error it terminates the program)
+  // The try {} construct is necessary only if the ap.trowOnProblems()
+  // setting is in use.
+  try {
+    ap.parse();
+  } catch (ArgParserException &) { return 1; }
+
+  // Check each option if it has been given and print its value
+  std::cout << "Parameters of '" << ap.commandName() << "':\n";
+
+  std::cout << "  Value of -n: " << i << std::endl;
+  if(ap.given("val")) std::cout << "  Value of -val: " << d << std::endl;
+  if(ap.given("val2")) {
+    d = ap["val2"];
+    std::cout << "  Value of -val2: " << d << std::endl;
+  }
+  if(ap.given("name")) std::cout << "  Value of -name: " << s << std::endl;
+  if(ap.given("f")) std::cout << "  -f is given\n";
+  if(ap.given("nohelp")) std::cout << "  Value of -nohelp: " << nh << std::endl;
+  if(ap.given("gra")) std::cout << "  -gra is given\n";
+  if(ap.given("grb")) std::cout << "  -grb is given\n";
+  if(ap.given("grc")) std::cout << "  -grc is given\n";
+
+  switch(ap.files().size()) {
+  case 0:
+    std::cout << "  No file argument was given.\n";
+    break;
+  case 1:
+    std::cout << "  1 file argument was given. It is:\n";
+    break;
+  default:
+    std::cout << "  "
+              << ap.files().size() << " file arguments were given. They are:\n";
+  }
+  for(unsigned int i=0;i<ap.files().size();++i)
+    std::cout << "    '" << ap.files()[i] << "'\n";
+
+  return 0;
+}
diff --git a/lemon/demo/digraph.lgf b/lemon/demo/digraph.lgf
new file mode 100644
index 0000000..83ba7da
--- /dev/null
+++ b/lemon/demo/digraph.lgf
@@ -0,0 +1,29 @@
+@nodes
+label
+0
+1
+2
+3
+4
+5
+6
+7
+@arcs
+		label capacity
+0 	1 	0  	  16
+0 	2 	1 	  12
+0 	3 	2 	  20
+1 	2 	3 	  10
+1 	4 	4 	  10
+1 	5 	5 	  13
+2 	3 	6 	  10
+2 	4 	7 	  8
+2 	6 	8 	  8
+5 	3 	9 	  20
+3 	6 	10 	  25
+4 	7 	11 	  15
+5 	7 	12 	  15
+6 	7 	13 	  18
+@attributes
+source 0
+target 7
diff --git a/lemon/demo/graph_to_eps_demo.cc b/lemon/demo/graph_to_eps_demo.cc
new file mode 100644
index 0000000..f2f55a9
--- /dev/null
+++ b/lemon/demo/graph_to_eps_demo.cc
@@ -0,0 +1,206 @@
+/* -*- mode: C++; indent-tabs-mode: nil; -*-
+ *
+ * This file is a part of LEMON, a generic C++ optimization library.
+ *
+ * Copyright (C) 2003-2009
+ * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
+ * (Egervary Research Group on Combinatorial Optimization, EGRES).
+ *
+ * Permission to use, modify and distribute this software is granted
+ * provided that this copyright notice appears in all copies. For
+ * precise terms see the accompanying LICENSE file.
+ *
+ * This software is provided "AS IS" with no warranty of any kind,
+ * express or implied, and with no claim as to its suitability for any
+ * purpose.
+ *
+ */
+
+/// \ingroup demos
+/// \file
+/// \brief Demo of the graph drawing function \ref graphToEps()
+///
+/// This demo program shows examples how to use the function \ref
+/// graphToEps(). It takes no input but simply creates seven
+/// <tt>.eps</tt> files demonstrating the capability of \ref
+/// graphToEps(), and showing how to draw directed graphs,
+/// how to handle parallel egdes, how to change the properties (like
+/// color, shape, size, title etc.) of nodes and arcs individually
+/// using appropriate graph maps.
+///
+/// \include graph_to_eps_demo.cc
+
+#include<lemon/list_graph.h>
+#include<lemon/graph_to_eps.h>
+#include<lemon/math.h>
+
+using namespace std;
+using namespace lemon;
+
+int main()
+{
+  Palette palette;
+  Palette paletteW(true);
+
+  // Create a small digraph
+  ListDigraph g;
+  typedef ListDigraph::Node Node;
+  typedef ListDigraph::NodeIt NodeIt;
+  typedef ListDigraph::Arc Arc;
+  typedef dim2::Point<int> Point;
+
+  Node n1=g.addNode();
+  Node n2=g.addNode();
+  Node n3=g.addNode();
+  Node n4=g.addNode();
+  Node n5=g.addNode();
+
+  ListDigraph::NodeMap<Point> coords(g);
+  ListDigraph::NodeMap<double> sizes(g);
+  ListDigraph::NodeMap<int> colors(g);
+  ListDigraph::NodeMap<int> shapes(g);
+  ListDigraph::ArcMap<int> acolors(g);
+  ListDigraph::ArcMap<int> widths(g);
+
+  coords[n1]=Point(50,50);  sizes[n1]=1; colors[n1]=1; shapes[n1]=0;
+  coords[n2]=Point(50,70);  sizes[n2]=2; colors[n2]=2; shapes[n2]=2;
+  coords[n3]=Point(70,70);  sizes[n3]=1; colors[n3]=3; shapes[n3]=0;
+  coords[n4]=Point(70,50);  sizes[n4]=2; colors[n4]=4; shapes[n4]=1;
+  coords[n5]=Point(85,60);  sizes[n5]=3; colors[n5]=5; shapes[n5]=2;
+
+  Arc a;
+
+  a=g.addArc(n1,n2); acolors[a]=0; widths[a]=1;
+  a=g.addArc(n2,n3); acolors[a]=0; widths[a]=1;
+  a=g.addArc(n3,n5); acolors[a]=0; widths[a]=3;
+  a=g.addArc(n5,n4); acolors[a]=0; widths[a]=1;
+  a=g.addArc(n4,n1); acolors[a]=0; widths[a]=1;
+  a=g.addArc(n2,n4); acolors[a]=1; widths[a]=2;
+  a=g.addArc(n3,n4); acolors[a]=2; widths[a]=1;
+
+  IdMap<ListDigraph,Node> id(g);
+
+  // Create .eps files showing the digraph with different options
+  cout << "Create 'graph_to_eps_demo_out_1_pure.eps'" << endl;
+  graphToEps(g,"graph_to_eps_demo_out_1_pure.eps").
+    coords(coords).
+    title("Sample .eps figure").
+    copyright("(C) 2003-2009 LEMON Project").
+    run();
+
+  cout << "Create 'graph_to_eps_demo_out_2.eps'" << endl;
+  graphToEps(g,"graph_to_eps_demo_out_2.eps").
+    coords(coords).
+    title("Sample .eps figure").
+    copyright("(C) 2003-2009 LEMON Project").
+    absoluteNodeSizes().absoluteArcWidths().
+    nodeScale(2).nodeSizes(sizes).
+    nodeShapes(shapes).
+    nodeColors(composeMap(palette,colors)).
+    arcColors(composeMap(palette,acolors)).
+    arcWidthScale(.4).arcWidths(widths).
+    nodeTexts(id).nodeTextSize(3).
+    run();
+
+  cout << "Create 'graph_to_eps_demo_out_3_arr.eps'" << endl;
+  graphToEps(g,"graph_to_eps_demo_out_3_arr.eps").
+    title("Sample .eps figure (with arrowheads)").
+    copyright("(C) 2003-2009 LEMON Project").
+    absoluteNodeSizes().absoluteArcWidths().
+    nodeColors(composeMap(palette,colors)).
+    coords(coords).
+    nodeScale(2).nodeSizes(sizes).
+    nodeShapes(shapes).
+    arcColors(composeMap(palette,acolors)).
+    arcWidthScale(.4).arcWidths(widths).
+    nodeTexts(id).nodeTextSize(3).
+    drawArrows().arrowWidth(2).arrowLength(2).
+    run();
+
+  // Add more arcs to the digraph
+  a=g.addArc(n1,n4); acolors[a]=2; widths[a]=1;
+  a=g.addArc(n4,n1); acolors[a]=1; widths[a]=2;
+
+  a=g.addArc(n1,n2); acolors[a]=1; widths[a]=1;
+  a=g.addArc(n1,n2); acolors[a]=2; widths[a]=1;
+  a=g.addArc(n1,n2); acolors[a]=3; widths[a]=1;
+  a=g.addArc(n1,n2); acolors[a]=4; widths[a]=1;
+  a=g.addArc(n1,n2); acolors[a]=5; widths[a]=1;
+  a=g.addArc(n1,n2); acolors[a]=6; widths[a]=1;
+  a=g.addArc(n1,n2); acolors[a]=7; widths[a]=1;
+
+  cout << "Create 'graph_to_eps_demo_out_4_par.eps'" << endl;
+  graphToEps(g,"graph_to_eps_demo_out_4_par.eps").
+    title("Sample .eps figure (parallel arcs)").
+    copyright("(C) 2003-2009 LEMON Project").
+    absoluteNodeSizes().absoluteArcWidths().
+    nodeShapes(shapes).
+    coords(coords).
+    nodeScale(2).nodeSizes(sizes).
+    nodeColors(composeMap(palette,colors)).
+    arcColors(composeMap(palette,acolors)).
+    arcWidthScale(.4).arcWidths(widths).
+    nodeTexts(id).nodeTextSize(3).
+    enableParallel().parArcDist(1.5).
+    run();
+
+  cout << "Create 'graph_to_eps_demo_out_5_par_arr.eps'" << endl;
+  graphToEps(g,"graph_to_eps_demo_out_5_par_arr.eps").
+    title("Sample .eps figure (parallel arcs and arrowheads)").
+    copyright("(C) 2003-2009 LEMON Project").
+    absoluteNodeSizes().absoluteArcWidths().
+    nodeScale(2).nodeSizes(sizes).
+    coords(coords).
+    nodeShapes(shapes).
+    nodeColors(composeMap(palette,colors)).
+    arcColors(composeMap(palette,acolors)).
+    arcWidthScale(.3).arcWidths(widths).
+    nodeTexts(id).nodeTextSize(3).
+    enableParallel().parArcDist(1).
+    drawArrows().arrowWidth(1).arrowLength(1).
+    run();
+
+  cout << "Create 'graph_to_eps_demo_out_6_par_arr_a4.eps'" << endl;
+  graphToEps(g,"graph_to_eps_demo_out_6_par_arr_a4.eps").
+    title("Sample .eps figure (fits to A4)").
+    copyright("(C) 2003-2009 LEMON Project").
+    scaleToA4().
+    absoluteNodeSizes().absoluteArcWidths().
+    nodeScale(2).nodeSizes(sizes).
+    coords(coords).
+    nodeShapes(shapes).
+    nodeColors(composeMap(palette,colors)).
+    arcColors(composeMap(palette,acolors)).
+    arcWidthScale(.3).arcWidths(widths).
+    nodeTexts(id).nodeTextSize(3).
+    enableParallel().parArcDist(1).
+    drawArrows().arrowWidth(1).arrowLength(1).
+    run();
+
+  // Create an .eps file showing the colors of a default Palette
+  ListDigraph h;
+  ListDigraph::NodeMap<int> hcolors(h);
+  ListDigraph::NodeMap<Point> hcoords(h);
+
+  int cols=int(std::sqrt(double(palette.size())));
+  for(int i=0;i<int(paletteW.size());i++) {
+    Node n=h.addNode();
+    hcoords[n]=Point(1+i%cols,1+i/cols);
+    hcolors[n]=i;
+  }
+
+  cout << "Create 'graph_to_eps_demo_out_7_colors.eps'" << endl;
+  graphToEps(h,"graph_to_eps_demo_out_7_colors.eps").
+    scale(60).
+    title("Sample .eps figure (Palette demo)").
+    copyright("(C) 2003-2009 LEMON Project").
+    coords(hcoords).
+    absoluteNodeSizes().absoluteArcWidths().
+    nodeScale(.45).
+    distantColorNodeTexts().
+    nodeTexts(hcolors).nodeTextSize(.6).
+    nodeColors(composeMap(paletteW,hcolors)).
+    run();
+
+  return 0;
+}
diff --git a/lemon/demo/lgf_demo.cc b/lemon/demo/lgf_demo.cc
new file mode 100644
index 0000000..e2d31cd
--- /dev/null
+++ b/lemon/demo/lgf_demo.cc
@@ -0,0 +1,70 @@
+/* -*- mode: C++; indent-tabs-mode: nil; -*-
+ *
+ * This file is a part of LEMON, a generic C++ optimization library.
+ *
+ * Copyright (C) 2003-2009
+ * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
+ * (Egervary Research Group on Combinatorial Optimization, EGRES).
+ *
+ * Permission to use, modify and distribute this software is granted
+ * provided that this copyright notice appears in all copies. For
+ * precise terms see the accompanying LICENSE file.
+ *
+ * This software is provided "AS IS" with no warranty of any kind,
+ * express or implied, and with no claim as to its suitability for any
+ * purpose.
+ *
+ */
+
+///\ingroup demos
+///\file
+///\brief Demonstrating graph input and output
+///
+/// This program gives an example of how to read and write a digraph
+/// and additional maps from/to a stream or a file using the
+/// \ref lgf-format "LGF" format.
+///
+/// The \c "digraph.lgf" file:
+/// \include digraph.lgf
+///
+/// And the program which reads it and prints the digraph to the
+/// standard output:
+/// \include lgf_demo.cc
+
+#include <iostream>
+#include <lemon/smart_graph.h>
+#include <lemon/lgf_reader.h>
+#include <lemon/lgf_writer.h>
+
+using namespace lemon;
+
+int main() {
+  SmartDigraph g;
+  SmartDigraph::ArcMap<int> cap(g);
+  SmartDigraph::Node s, t;
+
+  try {
+    digraphReader(g, "digraph.lgf"). // read the directed graph into g
+      arcMap("capacity", cap).       // read the 'capacity' arc map into cap
+      node("source", s).             // read 'source' node to s
+      node("target", t).             // read 'target' node to t
+      run();
+  } catch (Exception& error) { // check if there was any error
+    std::cerr << "Error: " << error.what() << std::endl;
+    return -1;
+  }
+
+  std::cout << "A digraph is read from 'digraph.lgf'." << std::endl;
+  std::cout << "Number of nodes: " << countNodes(g) << std::endl;
+  std::cout << "Number of arcs: " << countArcs(g) << std::endl;
+
+  std::cout << "We can write it to the standard output:" << std::endl;
+
+  digraphWriter(g).                // write g to the standard output
+    arcMap("capacity", cap).       // write cap into 'capacity'
+    node("source", s).             // write s to 'source'
+    node("target", t).             // write t to 'target'
+    run();
+
+  return 0;
+}