Imported Upstream version 2.16.0

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

diff --git a/lily/lily-parser.cc b/lily/lily-parser.cc
index 2ee77b1e6dec7a0f270761362c642c37d792aaa0..cec4893d8db0b9cab96c0404e34cecf088bf28c7 100644 (file)
--- a/lily/lily-parser.cc
+++ b/lily/lily-parser.cc
@@ -1,7 +1,7 @@
 /*
   This file is part of LilyPond, the GNU music typesetter.
 
-  Copyright (C) 1997--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  Copyright (C) 1997--2012 Han-Wen Nienhuys <hanwen@xs4all.nl>
   Jan Nieuwenhuizen <janneke@gnu.org>
 
   LilyPond is free software: you can redistribute it and/or modify
@@ -32,6 +32,7 @@
 #include "paper-book.hh"
 #include "parser.hh"
 #include "score.hh"
+#include "source-file.hh"
 #include "sources.hh"
 #include "warn.hh"
 #include "program-option.hh"
@@ -44,6 +45,7 @@ Lily_parser::Lily_parser (Sources *sources)
   sources_ = sources;
   default_duration_ = Duration (2, 0);
   error_level_ = 0;
+  closures_ = SCM_EOL;
 
   smobify_self ();
 
@@ -51,13 +53,14 @@ Lily_parser::Lily_parser (Sources *sources)
   lexer_->unprotect ();
 }
 
-Lily_parser::Lily_parser (Lily_parser const &src)
+Lily_parser::Lily_parser (Lily_parser const &src, SCM closures)
 {
   lexer_ = 0;
   sources_ = src.sources_;
   default_duration_ = src.default_duration_;
-  error_level_ = src.error_level_;
+  error_level_ = 0;
   output_basename_ = src.output_basename_;
+  closures_ = closures;
 
   smobify_self ();
   if (src.lexer_)
@@ -72,16 +75,16 @@ Lily_parser::~Lily_parser ()
 {
 }
 
-
 SCM
 Lily_parser::mark_smob (SCM s)
 {
   Lily_parser *parser = (Lily_parser *) SCM_CELL_WORD_1 (s);
+  scm_gc_mark (parser->closures_);
   return (parser->lexer_) ? parser->lexer_->self_scm () : SCM_EOL;
 }
 
 int
-Lily_parser::print_smob (SCM s, SCM port, scm_print_state*)
+Lily_parser::print_smob (SCM s, SCM port, scm_print_state *)
 {
   scm_puts ("#<Lily_parser ", port);
   Lily_parser *parser = (Lily_parser *) SCM_CELL_WORD_1 (s);
@@ -124,17 +127,11 @@ Lily_parser::parse_file (string init, string name, string out_name)
     Don't mix cyclic pointers with weak tables.
   */
   lexer_->set_identifier (ly_symbol2scm ("parser"),
-                         SCM_EOL);
+                          SCM_EOL);
   ly_reexport_module (scm_current_module ());
 
   scm_set_current_module (mod);
 
-  if (!define_spots_.empty ())
-    {
-      define_spots_.back ().warning (_ ("braces do not match"));
-      error_level_ = 1;
-    }
-
   error_level_ = error_level_ | lexer_->error_level_;
   clear ();
 }
@@ -144,7 +141,7 @@ Lily_parser::parse_string (string ly_code)
 {
   // TODO: use $parser
   lexer_->set_identifier (ly_symbol2scm ("parser"),
-                         self_scm ());
+                          self_scm ());
 
   lexer_->main_input_name_ = "<string>";
   lexer_->is_main_input_ = true;
@@ -154,20 +151,40 @@ Lily_parser::parse_string (string ly_code)
   do_yyparse ();
   scm_set_current_module (mod);
 
-  if (!define_spots_.empty ())
+  error_level_ = error_level_ | lexer_->error_level_;
+}
+
+SCM
+Lily_parser::parse_string_expression (string ly_code, string filename,
+                                      int line)
+{
+  // TODO: use $parser
+  lexer_->set_identifier (ly_symbol2scm ("parser"),
+                          self_scm ());
+
+  lexer_->main_input_name_ = filename;
+  lexer_->is_main_input_ = true;
+  lexer_->new_input (lexer_->main_input_name_, ly_code, sources_);
+  if (line)
     {
-      if (define_spots_.empty ()
-         && !error_level_)
-       programming_error ("define_spots_ don't match, but error_level_ not set.");
+      lexer_->get_source_file ()->set_line (0, line);
     }
+  SCM mod = lexer_->set_current_scope ();
+  lexer_->push_extra_token (EMBEDDED_LILY);
+  do_yyparse ();
+  SCM result = lexer_->lookup_identifier_symbol (ly_symbol2scm ("parseStringResult"));
+  // parseStringResult is set in the grammar rule for embedded_lilypond
+
+  scm_set_current_module (mod);
 
   error_level_ = error_level_ | lexer_->error_level_;
+  return result;
 }
 
 void
 Lily_parser::include_string (string ly_code)
 {
-  lexer_->add_string_include (ly_code);
+  lexer_->new_input ("<included string>", ly_code, sources_);
 }
 
 void
@@ -176,7 +193,7 @@ Lily_parser::clear ()
   if (lexer_)
     {
       while (lexer_->has_scope ())
-       lexer_->remove_scope ();
+        lexer_->remove_scope ();
     }
 
   lexer_ = 0;
@@ -202,13 +219,10 @@ Lily_parser::parser_error (Input const &i, string s)
   error_level_ = 1;
 }
 
-
-
 IMPLEMENT_SMOBS (Lily_parser);
 IMPLEMENT_TYPE_P (Lily_parser, "ly:lily-parser?");
 IMPLEMENT_DEFAULT_EQUAL_P (Lily_parser);
 
-
 /****************************************************************
   OUTPUT-DEF
  ****************************************************************/
@@ -240,8 +254,8 @@ Output_def *
 get_paper (Lily_parser *parser)
 {
   SCM papers = parser->lexer_->lookup_identifier ("$papers");
-  Output_def *layout = ((papers == SCM_UNDEFINED) || scm_is_null (papers)) ?
-    0 : unsmob_output_def (scm_car (papers));
+  Output_def *layout = ((papers == SCM_UNDEFINED) || scm_is_null (papers))
+                       ? 0 : unsmob_output_def (scm_car (papers));
   SCM default_paper = parser->lexer_->lookup_identifier ("$defaultpaper");
   layout = layout ? layout : unsmob_output_def (default_paper);