Add a shortcut for wrapping data for a collection file

Collections are part of the library itself, so there's no reason to
require users to write all the boilerplate to do the wrapping.

diff --git a/tool/compiler.cpp b/tool/compiler.cpp
index 8725bea3e90c9c2eff8e3e85f21212220e26115c..49dd19031cc0408fc958e84afd3fcfa4063bc403 100644 (file)
--- a/tool/compiler.cpp
+++ b/tool/compiler.cpp
@@ -45,6 +45,14 @@ bool Compiler::process_statement(const FS::Path &fn, DataFile::Statement &st)
        if(st.keyword=="_content")
                return true;
 
+       if(st.keyword=="_extension")
+       {
+               string ext = FS::extpart(FS::basename(fn));
+               if(ext.empty() || ext.size()==1)
+                       throw invalid_argument("Compiler::process_statement");
+               st.keyword = ext.substr(1);
+       }
+
        for(vector<DataFile::Value>::iterator i = st.args.begin(); i!=st.args.end(); ++i)
                if(i->get_signature()==DataFile::StringType::signature)
                {
@@ -151,6 +159,8 @@ ForEach::ForEach(Compiler &c, const FS::Path &b, const list<string> &p):
 {
        add("exclude", &ForEach::exclude);
        add("pattern", &ForEach::pattern);
+       add("wrap",    &ForEach::wrap);
+       add("wrap",    &ForEach::wrap_keyword);
        add("write",   &ForEach::write);
 }
 
@@ -179,6 +189,19 @@ void ForEach::pattern(const string &p)
        patterns.push_back(p);
 }
 
+void ForEach::wrap()
+{
+       wrap_keyword("_extension");
+}
+
+void ForEach::wrap_keyword(const string &kwd)
+{
+       DataFile::Statement st(kwd);
+       st.append("$filename");
+       st.sub.push_back(DataFile::Statement("_content"));
+       write_st.push_back(st);
+}
+
 void ForEach::write(const DataFile::Statement &st)
 {
        write_st.insert(write_st.end(), st.sub.begin(), st.sub.end());

diff --git a/tool/compiler.h b/tool/compiler.h
index 1e7907add5174aa16a79e36d6bf06ae003ea76d3..046209929c336e14a62153ee9352693739c2a889 100644 (file)
--- a/tool/compiler.h
+++ b/tool/compiler.h
@@ -60,6 +60,8 @@ private:
 
        void exclude(const std::string &);
        void pattern(const std::string &);
+       void wrap();
+       void wrap_keyword(const std::string &);
        void write(const Msp::DataFile::Statement &);
 };