[cig-commits] r8930 - cs/benchmark/cigma/trunk/src

[luis at geodynamics.org]

Author: luis
Date: 2007-12-19 12:04:36 -0800 (Wed, 19 Dec 2007)
New Revision: 8930

Added:
   cs/benchmark/cigma/trunk/src/HelpCmd.cpp
   cs/benchmark/cigma/trunk/src/HelpCmd.h
Log:
Callback command for `cigma help <subcommand>'

Added: cs/benchmark/cigma/trunk/src/HelpCmd.cpp
===================================================================
--- cs/benchmark/cigma/trunk/src/HelpCmd.cpp	2007-12-19 20:04:28 UTC (rev 8929)
+++ cs/benchmark/cigma/trunk/src/HelpCmd.cpp	2007-12-19 20:04:36 UTC (rev 8930)
@@ -0,0 +1,113 @@
+#include <iostream>
+#include <cassert>
+#include "HelpCmd.h"
+#include "CommandSet.h"
+
+// ---------------------------------------------------------------------------
+
+cigma::HelpCmd::HelpCmd()
+{
+    name = "help";
+    commands = 0;
+}
+
+
+cigma::HelpCmd::~HelpCmd()
+{
+}
+
+
+void cigma::HelpCmd::setCmdMap(CommandSet::CmdMap *cmds)
+{
+    /* pointer to set of commands */
+    this->commands = cmds;
+
+    /* prepare usage list from current set of commands */
+    usageList.clear();
+    std::string prefix = "   ";
+    CommandSet::CmdMap::iterator it;
+    for (it = commands->begin(); it != commands->end(); ++it)
+    {
+        Command *cmd = it->second;
+        usageList.push_back(prefix + (cmd->name));
+    }
+}
+
+// ---------------------------------------------------------------------------
+
+void cigma::HelpCmd::setupOptions(AnyOption *opt)
+{
+    std::cout << "Calling cigma::HelpCmd::setupOptions()" << std::endl;
+
+    assert(opt != 0);
+
+    /* prepare preamble */
+    opt->addUsage("Usage: cigma <subcommand> [options] [args]");
+    opt->addUsage("Type 'cigma help <subcommand>' for help on a specific subcommand.");
+    opt->addUsage("");
+    opt->addUsage("Available subcommands");
+
+    /* pass contents of usage list to opt object */
+    std::vector<std::string>::iterator it;
+    for (it = usageList.begin(); it != usageList.end(); ++it)
+    {
+        opt->addUsage(it->c_str());
+    }
+
+    // XXX: need to set at least one flag or option (bug in AnyOption)
+    opt->setFlag("help",'h');
+}
+
+
+void cigma::HelpCmd::configure(AnyOption *opt)
+{
+    std::cout << "Calling cigma::HelpCmd::configure()" << std::endl;
+
+    assert(opt != 0);
+
+    int argc = opt->getArgc();
+
+    subcommand = "";
+    if (argc == 0)
+    {
+        subcommand = "help";
+    }
+    else
+    {
+        subcommand = opt->getArgv(0);
+        if (argc >= 2)
+        {
+            // XXX: too many args!
+            std::cerr << "Too many arguments! "
+                      << "Taking only '"
+                      << subcommand
+                      << "'" << std::endl;
+        }
+    }
+}
+
+
+int cigma::HelpCmd::run()
+{
+    std::cout << "Calling cigma::HelpCmd::run()" << std::endl;
+
+    CommandSet::CmdMap::iterator it = commands->find(subcommand);
+
+    if (it != commands->end())
+    {
+        AnyOption opt;
+        Command *cmd = it->second;
+        cmd->setupOptions(&opt);
+        opt.printUsage();
+        return 0;
+    }
+    else
+    {
+        std::cerr << "Unknown command: '"
+                  << subcommand
+                  << "'" << std::endl;
+    }
+
+    return 1;
+}
+

Added: cs/benchmark/cigma/trunk/src/HelpCmd.h
===================================================================
--- cs/benchmark/cigma/trunk/src/HelpCmd.h	2007-12-19 20:04:28 UTC (rev 8929)
+++ cs/benchmark/cigma/trunk/src/HelpCmd.h	2007-12-19 20:04:36 UTC (rev 8930)
@@ -0,0 +1,39 @@
+#ifndef __HELP_CMD_H__
+#define __HELP_CMD_H__
+
+#include "Command.h"
+#include "CommandSet.h"
+#include <vector>
+
+namespace cigma
+{
+    class HelpCmd;
+}
+
+
+/**
+ * @brief Callback object for `cigma help [args ...]'
+ *
+ */
+class cigma::HelpCmd : public Command
+{
+public:
+    HelpCmd();
+    ~HelpCmd();
+
+public:
+    void setupOptions(AnyOption *opt);
+    void configure(AnyOption *opt);
+    int run();
+
+public:
+    void setCmdMap(CommandSet::CmdMap *cmds);
+
+public:
+    CommandSet::CmdMap *commands;
+    std::string subcommand;
+    std::vector<std::string> usageList;
+};
+
+
+#endif