Merge branch 'develop'

include/boost/program_options.hpp

@@ -8,7 +8,7 @@
 #ifndef PROGRAM_OPTIONS_VP_2003_05_19
 #define PROGRAM_OPTIONS_VP_2003_05_19
 
-#if _MSC_VER >= 1020
+#if defined(_MSC_VER)
 #pragma once
 #endif
 

include/boost/program_options/detail/value_semantic.hpp

@@ -105,12 +105,9 @@ namespace boost { namespace program_options {
                        int);
 #endif
     // For some reason, this declaration, which is require by the standard,
-    // cause gcc 3.2 to not generate code to specialization defined in
+    // cause msvc 7.1 to not generate code to specialization defined in
     // value_semantic.cpp
-#if ! ( ( BOOST_WORKAROUND(__GNUC__, <= 3) &&\
-          BOOST_WORKAROUND(__GNUC_MINOR__, < 3) ) || \
-        ( BOOST_WORKAROUND(BOOST_MSVC, == 1310) ) \
-      ) 
+#if ! ( BOOST_WORKAROUND(BOOST_MSVC, == 1310) )
     BOOST_PROGRAM_OPTIONS_DECL void validate(boost::any& v, 
                        const std::vector<std::string>& xs,
                        std::string*,

include/boost/program_options/errors.hpp

@@ -25,7 +25,8 @@ namespace boost { namespace program_options {
 
     inline std::string strip_prefixes(const std::string& text)
     {
-        return text.substr(text.find_last_of("-/") + 1);
+        // "--foo-bar" -> "foo-bar"
+        return text.substr(text.find_first_not_of("-/"));
     }
 
     /** Base class for all errors in the library. */

include/boost/program_options/options_description.hpp

@@ -199,6 +199,10 @@ namespace program_options {
         */
         options_description& add(const options_description& desc);
 
+        /** Find the maximum width of the option column, including options 
+            in groups. */
+        unsigned get_option_column_width() const;
+
     public:
         /** Returns an object of implementation-defined type suitable for adding
             options to options_description. The returned object will
@@ -229,7 +233,7 @@ namespace program_options {
 
         /** Outputs 'desc' to the specified stream, calling 'f' to output each
             option_description element. */
-        void print(std::ostream& os) const;
+        void print(std::ostream& os, unsigned width = 0) const;
 
     private:
         typedef std::map<std::string, int>::const_iterator name2index_iterator;

include/boost/program_options/variables_map.hpp

@@ -98,7 +98,7 @@ namespace boost { namespace program_options {
         void store(const basic_parsed_options<char>& options, 
               variables_map& m, bool);
 
-        friend BOOST_PROGRAM_OPTIONS_DECL class variables_map;
+        friend class BOOST_PROGRAM_OPTIONS_DECL variables_map;
     };
 
     /** Implements string->string mapping with convenient value casting

src/cmdline.cpp

@@ -455,7 +455,7 @@ namespace boost { namespace program_options { namespace detail {
                 // if they look like options
                 if (opt.value.size() <= min_tokens) 
                 {
-		    min_tokens -= static_cast<unsigned>(opt.value.size());
+                    min_tokens -= static_cast<unsigned>(opt.value.size());
                 }
                 else
                 {

src/options_description.cpp

@@ -604,12 +604,9 @@ namespace boost { namespace program_options {
         }
     }
 
-    void 
-    options_description::print(std::ostream& os) const
+    unsigned                                                                    
+    options_description::get_option_column_width() const                                
     {
-        if (!m_caption.empty())
-            os << m_caption << ":\n";
-
         /* Find the maximum width of the option column */
         unsigned width(23);
         unsigned i; // vc6 has broken for loop scoping
@@ -620,6 +617,11 @@ namespace boost { namespace program_options {
             ss << "  " << opt.format_name() << ' ' << opt.format_parameter();
             width = (max)(width, static_cast<unsigned>(ss.str().size()));            
         }
+
+        /* Get width of groups as well*/
+        for (unsigned j = 0; j < groups.size(); ++j)                            
+            width = max(width, groups[j]->get_option_column_width());
+
         /* this is the column were description should start, if first
            column is longer, we go to a new line */
         const unsigned start_of_description_column = m_line_length - m_min_description_length;
@@ -628,9 +630,20 @@ namespace boost { namespace program_options {
         
         /* add an additional space to improve readability */
         ++width;
-            
+        return width;                                                       
+    }
+
+    void 
+    options_description::print(std::ostream& os, unsigned width) const
+    {
+        if (!m_caption.empty())
+            os << m_caption << ":\n";
+
+        if (!width)
+            width = get_option_column_width();
+
         /* The options formatting style is stolen from Subversion. */
-        for (i = 0; i < m_options.size(); ++i)
+        for (unsigned i = 0; i < m_options.size(); ++i)
         {
             if (belong_to_group[i])
                 continue;
@@ -643,7 +656,8 @@ namespace boost { namespace program_options {
         }
 
         for (unsigned j = 0; j < groups.size(); ++j) {            
-            os << "\n" << *groups[j];
+            os << "\n";
+            groups[j]->print(os, width);
         }
     }
 

test/Jamfile.v2

@@ -32,6 +32,7 @@ test-suite program_options :
     [ po-test split_test.cpp ]
     [ po-test unrecognized_test.cpp ]
     [ po-test required_test.cpp : required_test.cfg ]
+    [ po-test exception_txt_test.cpp ]
     ;
         
 exe test_convert : test_convert.cpp ;