1 files changed, 140 insertions, 0 deletions
diff --git a/src/cz/crcs/ectester/common/cli/CLITools.java b/src/cz/crcs/ectester/common/cli/CLITools.java
new file mode 100644
index 0000000..91f121f
--- /dev/null
+++ b/src/cz/crcs/ectester/common/cli/CLITools.java
@@ -0,0 +1,140 @@
+package cz.crcs.ectester.common.cli;
+
+import cz.crcs.ectester.common.ec.EC_Category;
+import cz.crcs.ectester.common.ec.EC_Data;
+import cz.crcs.ectester.data.EC_Store;
+import org.apache.commons.cli.CommandLineParser;
+import org.apache.commons.cli.HelpFormatter;
+import org.apache.commons.cli.Options;
+
+import java.io.PrintWriter;
+import java.io.StringWriter;
+import java.util.Map;
+
+/**
+ * @author Jan Jancar johny@neuromancer.sk
+ */
+public class CLITools {
+
+    /**
+     * Print help.
+     */
+    public static void help(String prog, String header, Options options, String footer, boolean usage) {
+        HelpFormatter help = new HelpFormatter();
+        help.setOptionComparator(null);
+        help.printHelp(prog, header, options, footer, usage);
+    }
+
+    private static void help(HelpFormatter help, PrintWriter pw, CommandLineParser cli, Options opts, int depth) {
+        if (opts.getOptions().size() > 0) {
+            help.printOptions(pw, HelpFormatter.DEFAULT_WIDTH, opts, HelpFormatter.DEFAULT_LEFT_PAD + depth, HelpFormatter.DEFAULT_DESC_PAD);
+        }
+        if (cli instanceof TreeParser) {
+            TreeParser tp = (TreeParser) cli;
+            for (Argument arg : tp.getArgs()) {
+                String argname = arg.isRequired() ? "<" + arg.getName() + ">" : "[" + arg.getName() + "]";
+                help.printWrapped(pw, HelpFormatter.DEFAULT_WIDTH, String.format("%" + (depth + 1) + "s" + argname + "   " + arg.getDesc(), " "));
+            }
+            tp.getParsers().forEach((key, value) -> {
+                pw.println();
+                help.printWrapped(pw, HelpFormatter.DEFAULT_WIDTH, String.format("%" + depth + "s" + key + ":", " "));
+                CLITools.help(help, pw, value.getParser(), value.getOptions(), depth + 1);
+            });
+        }
+    }
+
+    private static void usage(HelpFormatter help, PrintWriter pw, CommandLineParser cli, Options opts) {
+        StringWriter sw = new StringWriter();
+        PrintWriter upw = new PrintWriter(sw);
+        help.printUsage(upw, HelpFormatter.DEFAULT_WIDTH, "", opts);
+        if (cli instanceof TreeParser) {
+            upw.print(" ");
+            TreeParser tp = (TreeParser) cli;
+            String[] keys = tp.getParsers().keySet().toArray(new String[tp.getParsers().size()]);
+            if (keys.length > 0 && !tp.isRequired()) {
+                upw.print("[ ");
+            }
+
+            for (int i = 0; i < keys.length; ++i) {
+                String key = keys[i];
+                ParserOptions value = tp.getParsers().get(key);
+                upw.print("(" + key);
+                usage(help, upw, value.getParser(), value.getOptions());
+                upw.print(")");
+                if (i != keys.length - 1) {
+                    upw.print(" | ");
+                }
+            }
+
+            if (keys.length > 0 && !tp.isRequired()) {
+                upw.print(" ]");
+            }
+
+            Argument[] args = tp.getArgs().toArray(new Argument[tp.getArgs().size()]);
+            if (args.length > 0) {
+                String[] argss = new String[tp.getArgs().size()];
+                for (int i = 0; i < args.length; ++i) {
+                    Argument arg = args[i];
+                    argss[i] = arg.isRequired() ? "<" + arg.getName() + ">" : "[" + arg.getName() + "]";
+                }
+                upw.print(" " + String.join(" ", argss));
+            }
+        }
+        pw.println(sw.toString().replaceAll("usage:( )?", "").replace("\n", ""));
+    }
+
+    /**
+     * Print tree help.
+     */
+    public static void help(String prog, String header, Options baseOpts, TreeParser baseParser, String footer, boolean printUsage) {
+        HelpFormatter help = new HelpFormatter();
+        help.setOptionComparator(null);
+        StringWriter sw = new StringWriter();
+        PrintWriter pw = new PrintWriter(sw);
+        help.printWrapped(pw, HelpFormatter.DEFAULT_WIDTH, header);
+        if (printUsage) {
+            StringWriter uw = new StringWriter();
+            PrintWriter upw = new PrintWriter(uw);
+            usage(help, upw, baseParser, baseOpts);
+            pw.print("usage: " + prog);
+            help.printWrapped(pw, HelpFormatter.DEFAULT_WIDTH, uw.toString());
+            upw.close();
+            pw.println();
+        }
+        help(help, pw, baseParser, baseOpts, 1);
+        help.printWrapped(pw, HelpFormatter.DEFAULT_WIDTH, footer);
+        System.out.println(sw.toString());
+    }
+
+    /**
+     * Print version info.
+     */
+    public static void version(String description, String license) {
+        System.out.println(description);
+        System.out.println(license);
+    }
+
+    /**
+     * List categories and named curves.
+     */
+    public static void listNamed(EC_Store dataStore, String named) {
+        Map<String, EC_Category> categories = dataStore.getCategories();
+        if (named == null) {
+            // print all categories, briefly
+            for (EC_Category cat : categories.values()) {
+                System.out.println(cat);
+            }
+        } else if (categories.containsKey(named)) {
+            // print given category
+            System.out.println(categories.get(named));
+        } else {
+            // print given object
+            EC_Data object = dataStore.getObject(EC_Data.class, named);
+            if (object != null) {
+                System.out.println(object);
+            } else {
+                System.err.println("Named object " + named + " not found!");
+            }
+        }
+    }
+}