source file of the LilyPond music typesetter
- (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
+ (c) 1997--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
+
#include "includable-lexer.hh"
+
+#include <sstream>
+
+#include "config.hh"
+#include "file-path.hh"
#include "source-file.hh"
#include "source.hh"
+#include "warn.hh"
+#include "main.hh"
#ifndef YY_BUF_SIZE
#define YY_BUF_SIZE 16384
#endif
+#ifndef YY_START
+#define YY_START \
+ ((yy_start - 1) / 2)
+#define YYSTATE YY_START
+#endif
+
+/* Flex >= 2.5.29 has include stack; but we don't use that yet. */
+#if !HAVE_FLEXLEXER_YY_CURRENT_BUFFER
+#define yy_current_buffer \
+ (yy_buffer_stack != 0 ? yy_buffer_stack[yy_buffer_stack_top] : 0)
+#endif
+
Includable_lexer::Includable_lexer ()
{
+#if HAVE_FLEXLEXER_YY_CURRENT_BUFFER
yy_current_buffer = 0;
+#endif
+ allow_includes_b_ = true;
}
-/** set the new input to s, remember old file.
-*/
+/** Set the new input file to NAME, remember old file. */
void
-Includable_lexer::new_input (String s, Sources * global_sources)
+Includable_lexer::new_input (String name, Sources *sources)
{
- Source_file * sl = global_sources->get_file_l (s);
- if (!sl)
+ if (!allow_includes_b_)
{
- String msg =_ ("Can't find file `") + s+ "'";
- LexerError (msg.ch_C ());
+ LexerError (_ ("include files are not allowed in safe mode").to_str0 ());
return;
}
+ Source_file *file = sources->get_file (name);
+ if (!file)
+ {
+ String msg = _f ("can't find file: `%s'", name);
+ msg += "\n";
+ msg += _f ("(search path: `%s')",
+ sources->path_->to_string ().to_str0 ());
+ LexerError (msg.to_str0 ());
+ return;
+ }
+ file_name_strings_.push (file->name_string ());
char_count_stack_.push (0);
if (yy_current_buffer)
state_stack_.push (yy_current_buffer);
- cout << "[" << s<<flush;
- include_stack_.push (sl);
- /*
- ugh. We'd want to create a buffer from the bytes directly.
+ if (be_verbose_global)
+ progress_indication (String ("[") + name);
- Whoops. The size argument to yy_create_buffer is not the
- filelength but a BUFFERSIZE. Maybe this is why reading stdin fucks up.
+ include_stack_.push (file);
- */
- yy_switch_to_buffer (yy_create_buffer (sl->istream_l (), YY_BUF_SIZE));
+ /* Ugh. We'd want to create a buffer from the bytes directly.
+
+ Whoops. The size argument to yy_create_buffer is not the
+ filelength but a BUFFERSIZE. Maybe this is why reading stdin fucks up. */
+ yy_switch_to_buffer (yy_create_buffer (file->get_istream (), YY_BUF_SIZE));
+}
+
+void
+Includable_lexer::new_input (String name, String data, Sources *sources)
+{
+ Source_file *file = new Source_file (name, data);
+ sources->add (file);
+ file_name_strings_.push (name);
+
+ char_count_stack_.push (0);
+ if (yy_current_buffer)
+ state_stack_.push (yy_current_buffer);
+
+ if (be_verbose_global)
+ progress_indication (String ("[") + name);
+ include_stack_.push (file);
+
+ yy_switch_to_buffer (yy_create_buffer (file->get_istream (), YY_BUF_SIZE));
}
/** pop the inputstack. conceptually this is a destructor, but it
- does not destruct the Source_file that Includable_lexer::new_input creates. */
+ does not destruct the Source_file that Includable_lexer::new_input
+ creates. */
bool
Includable_lexer::close_input ()
{
include_stack_.pop ();
char_count_stack_.pop ();
- cout << "]"<<flush;
+ if (be_verbose_global)
+ progress_indication ("]");
yy_delete_buffer (yy_current_buffer);
+#if HAVE_FLEXLEXER_YY_CURRENT_BUFFER
yy_current_buffer = 0;
- if (state_stack_.empty ())
+#endif
+ if (state_stack_.is_empty ())
{
+#if HAVE_FLEXLEXER_YY_CURRENT_BUFFER
+ yy_current_buffer = 0;
+#endif
return false;
}
- else
- {
- yy_switch_to_buffer (state_stack_.pop ());
- return true;
- }
+ yy_switch_to_buffer (state_stack_.pop ());
+ return true;
}
-char const*
-Includable_lexer::here_ch_C ()
+char const *
+Includable_lexer::here_str0 () const
{
- if (include_stack_.empty ())
+ if (include_stack_.is_empty ())
return 0;
- return include_stack_.top ()->ch_C () + char_count_stack_.top ();
+ return include_stack_.top ()->to_str0 () + char_count_stack_.top ();
}
Includable_lexer::~Includable_lexer ()
{
- while (!include_stack_.empty ())
+ while (!include_stack_.is_empty ())
{
close_input ();
}
}
-/**
- Since we don't create the buffer state from the bytes directly, we
- don't know about the location of the lexer. Add this as a
- YY_USER_ACTION */
-void
-Includable_lexer::add_lexed_char (int count)
-{
- char_count_stack_.top () += count;
-}
-Source_file*
-Includable_lexer::source_file_l () const
+Source_file *
+Includable_lexer::get_source_file () const
{
- if (include_stack_.empty ())
+ if (include_stack_.is_empty ())
return 0;
else
return include_stack_.top ();