Merge branch 'jneeman' of git+ssh://jneem@git.sv.gnu.org/srv/git/lilypond into jneeman

[lilypond.git] / lily / lily-parser-scheme.cc

diff --git a/lily/lily-parser-scheme.cc b/lily/lily-parser-scheme.cc
index 212ca92e682b8e783323f6d820c2a1b972e22ec8..83c3826dbdf7bf625f4becc951695b18e19a2d01 100644 (file)
--- a/lily/lily-parser-scheme.cc
+++ b/lily/lily-parser-scheme.cc
@@ -36,10 +36,10 @@ LY_DEFINE (ly_parse_file, "ly:parse-file",
           "Upon failure, throw @code{ly-file-failed} key.")
 {
   SCM_ASSERT_TYPE (scm_is_string (name), name, SCM_ARG1, __FUNCTION__, "string");
-  char const *file = scm_i_string_chars (name);
+  string file = ly_scm2string (name);
   char const *extensions[] = {"ly", "", 0};
 
-  std::string file_name = global_path.find (file, extensions);
+  string file_name = global_path.find (file, extensions);
 
   /* By default, use base name of input file for output file name,
      write output to cwd; do not use root and directory parts of input
@@ -64,32 +64,42 @@ LY_DEFINE (ly_parse_file, "ly:parse-file",
 
   if (!output_name_global.empty ())
     {
+      
       /* Interpret --output=DIR to mean --output=DIR/BASE.  */
+      string dir;
       if (is_dir (output_name_global))
        {
-         char cwd[PATH_MAX];
-         getcwd (cwd, PATH_MAX);
-
-         if (output_name_global != cwd)
+         dir = output_name_global;
+         output_name_global = "";
+       }
+      else
+       {
+         File_name out (output_name_global);
+         if (is_dir (out.dir_part ()))
            {
-             global_path.prepend (cwd);
-             message (_f ("Changing working directory to `%s'",
-                          output_name_global.c_str ()));
-             chdir (output_name_global.c_str ());
+             dir = out.dir_part ();
+             out_file_name = out.file_part ();
            }
-         output_name_global = "";
+       }         
+
+      if (dir != "" && dir != "." && dir != get_working_directory ())
+       {
+         global_path.prepend (get_working_directory ());
+         message (_f ("Changing working directory to `%s'",
+                      dir.c_str ()));
+         chdir (dir.c_str ());
        }
       else
        out_file_name = File_name (output_name_global);
     }
 
-  std::string init;
+  string init;
   if (!init_name_global.empty ())
     init = init_name_global;
   else
     init = "init.ly";
 
-  std::string out_file = out_file_name.to_string ();
+  string out_file = out_file_name.to_string ();
 
   if (init.length () && global_path.find (init).empty ())
     {
@@ -99,18 +109,19 @@ LY_DEFINE (ly_parse_file, "ly:parse-file",
       exit (2);
     }
 
-  if ((file_name != "-") && global_path.find (file_name).empty ())
+
+  bool error = false;
+  if ((file_name != "-") && file_name.empty ())
     {
-      warning (_f ("can't find file: `%s'", file_name));
-      scm_throw (ly_symbol2scm ("ly-file-failed"),
-                scm_list_1 (scm_makfrom0str (file_name.c_str ())));
+      warning (_f ("can't find file: `%s'", file));
+      error = true;
     }
   else
     {
       Sources sources;
       sources.set_path (&global_path);
 
-      std::string mapped_fn = map_file_name (file_name);
+      string mapped_fn = map_file_name (file_name);
       message (_f ("Processing `%s'", mapped_fn.c_str ()));
       progress_indication ("\n");
 
@@ -118,14 +129,20 @@ LY_DEFINE (ly_parse_file, "ly:parse-file",
 
       parser->parse_file (init, file_name, out_file);
 
-      bool error = parser->error_level_;
+      error = parser->error_level_;
+
+      parser->clear ();
       parser->unprotect ();
-      parser = 0;
-      if (error)
-       /* TODO: pass renamed input file too.  */
-       scm_throw (ly_symbol2scm ("ly-file-failed"),
-                  scm_list_1 (scm_makfrom0str (file_name.c_str ())));
     }
+
+  /*
+    outside the if-else to ensure cleanup fo Sources object, 
+   */
+  if (error)
+    /* TODO: pass renamed input file too.  */
+    scm_throw (ly_symbol2scm ("ly-file-failed"),
+              scm_list_1 (scm_makfrom0str (file_name.c_str ())));
+  
   return SCM_UNSPECIFIED;
 }
 
@@ -146,7 +163,15 @@ LY_DEFINE (ly_parse_string, "ly:parse-string",
   return SCM_UNSPECIFIED;
 }
 
-LY_DEFINE (ly_clone_parser, "ly:clone-parser",
+LY_DEFINE (ly_parser_lexer, "ly:parser-lexer",
+          1, 0, 0, (SCM parser_smob),
+          "Return the lexer for PARSER_SMOB.")
+{
+  Lily_parser *parser = unsmob_lily_parser (parser_smob);
+  return parser->lexer_->self_scm ();
+}
+
+LY_DEFINE (ly_parser_clone, "ly:parser-clone",
           1, 0, 0, (SCM parser_smob),
           "Return a clone of PARSER_SMOB.")
 {
@@ -228,4 +253,20 @@ LY_DEFINE (ly_parser_output_name, "ly:parser-output-name",
   return scm_makfrom0str (p->output_basename_.c_str ());
 }
 
+LY_DEFINE (ly_parser_error, "ly:parser-error",
+          2, 1, 0, (SCM parser, SCM msg, SCM input),
+          "Display an error message, and make the parser fail")
+{
+  Lily_parser *p = unsmob_lily_parser (parser);
+  SCM_ASSERT_TYPE (p, parser, SCM_ARG1, __FUNCTION__, "Lilypond parser");
+  SCM_ASSERT_TYPE (scm_is_string (msg), msg, SCM_ARG2, __FUNCTION__, "string");
+  string s = ly_scm2string (msg);
+  
+  Input *i = unsmob_input (input);
+  if (i)
+    p->parser_error (*i, s);
+  else
+    p->parser_error (s);
 
+  return parser;
+}