source file of the GNU LilyPond music typesetter
- (c) 1997--2006 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 1997--2008 Jan Nieuwenhuizen <janneke@gnu.org>
Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
+#if GCC_MAJOR < 4
+#define _GLIBCXX_HAVE_MBSTATE_T
+#include <wchar.h>
+#endif /* GCC_MAJOR < 4 */
+
#include "source-file.hh"
#include "config.hh"
#if HAVE_UTF8_WCHAR_H
#include <utf8/wchar.h> /* mbrtowc */
-#else
+#else /* !HAVE_UTF8_WCHAR_H */
#include <cwchar> /* mbrtowc */
-#endif
+#endif /* HAVE_UTF8_WCHAR_H */
#include <cstdio>
void
Source_file::load_stdin ()
{
- length_ = 0;
- chs_.clear ();
+ characters_.clear ();
int c;
while ((c = fgetc (stdin)) != EOF)
- chs_.push_back (c);
-
- chs_.push_back (0);
- length_ = chs_.size ();
- contents_str0_ = &chs_[0];
+ characters_.push_back (c);
}
-char *
-gulp_file (std::string filename, int *filesize)
+/*
+ return contents of FILENAME. *Not 0-terminated!*
+ */
+vector<char>
+gulp_file (string filename, int desired_size)
{
/* "b" must ensure to open literally, avoiding text (CR/LF)
conversions. */
FILE *f = fopen (filename.c_str (), "rb");
if (!f)
{
- warning (_f ("can't open file: `%s'", filename.c_str ()));
- return 0;
+ warning (_f ("cannot open file: `%s'", filename.c_str ()));
+
+ vector<char> cxx_arr;
+ return cxx_arr;
}
fseek (f, 0, SEEK_END);
int real_size = ftell (f);
int read_count = real_size;
- if (*filesize >= 0)
- read_count = min (read_count, *filesize);
+ if (desired_size > 0)
+ read_count = min (read_count, desired_size);
rewind (f);
warning (_f ("expected to read %d characters, got %d", bytes_read,
read_count));
fclose (f);
- *filesize = bytes_read;
- return str;
+ int filesize = bytes_read;
+
+ vector<char> cxx_arr;
+ cxx_arr.resize (filesize);
+
+ copy (str, str + filesize, cxx_arr.begin ());
+
+ delete[] str;
+ return cxx_arr;
}
-Source_file::Source_file (std::string filename, std::string data)
+void
+Source_file::init ()
{
- name_ = filename;
istream_ = 0;
- length_ = data.length ();
- contents_str0_ = string_copy (data);
- pos_str0_ = c_str ();
+ line_offset_ = 0;
+ str_port_ = SCM_EOL;
+ self_scm_ = SCM_EOL;
+ smobify_self ();
+}
+
+Source_file::Source_file (string filename, string data)
+{
+ init ();
+
+ name_ = filename;
+
+ characters_.resize (data.length ());
+ copy (data.begin (), data.end (), characters_.begin ());
+
+ characters_.push_back (0);
+
init_port ();
- for (int i = 0; i < length_; i++)
- if (contents_str0_[i] == '\n')
- newline_locations_.push_back (contents_str0_ + i);
+ for (vsize i = 0; i < characters_.size (); i++)
+ if (characters_[i] == '\n')
+ newline_locations_.push_back (&characters_[0] + i);
}
-Source_file::Source_file (std::string filename_string)
+Source_file::Source_file (string filename_string)
{
+ init ();
+
name_ = filename_string;
- istream_ = 0;
- contents_str0_ = 0;
if (filename_string == "-")
load_stdin ();
else
{
- length_ = -1;
- contents_str0_ = gulp_file (filename_string, &length_);
+ characters_ = gulp_file (filename_string, -1);
}
-
- pos_str0_ = c_str ();
+
+ characters_.push_back (0);
init_port ();
- for (int i = 0; i < length_; i++)
- if (contents_str0_[i] == '\n')
- newline_locations_.push_back (contents_str0_ + i);
+ for (vsize i = 0; i < characters_.size (); i++)
+ if (characters_[i] == '\n')
+ newline_locations_.push_back (&characters_[0] + i);
}
void
Source_file::init_port ()
{
- SCM str = scm_makfrom0str (contents_str0_);
+ SCM str = scm_from_locale_string (c_str ());
str_port_ = scm_mkstrport (SCM_INUM0, str, SCM_OPN | SCM_RDNG, __FUNCTION__);
- scm_set_port_filename_x (str_port_, scm_makfrom0str (name_.c_str ()));
+ scm_set_port_filename_x (str_port_, ly_string2scm (name_));
}
-int
-Source_file::tell () const
-{
- return pos_str0_ - contents_str0_;
-}
istream *
Source_file::get_istream ()
return istream_;
}
-std::string
+string
Source_file::file_line_column_string (char const *context_str0) const
{
if (!c_str ())
}
}
-std::string
+string
Source_file::quote_input (char const *pos_str0) const
{
if (!contains (pos_str0))
int l, ch, col;
get_counts (pos_str0, &l, &ch, &col);
- std::string line = line_string (pos_str0);
- std::string context = line.substr (0, ch)
+ string line = line_string (pos_str0);
+ string context = line.substr (0, ch)
+ to_string ('\n')
+ to_string (' ', col)
- + line.substr (ch, line.length()-ch);
+ + line.substr (ch, line.length ()-ch);
return context;
}
-std::string
+string
Source_file::name_string () const
{
return map_file_name (name_);
Source_file::~Source_file ()
{
delete istream_;
- istream_ = 0;
- delete[] contents_str0_;
}
Slice
return Slice (begin_str0 - data_str0, end_str0 - data_str0);
}
-std::string
+string
Source_file::line_string (char const *pos_str0) const
{
if (!contains (pos_str0))
Slice line = line_slice (pos_str0);
char const *data_str0 = c_str ();
- return std::string (data_str0 + line[LEFT], line.length ());
+ return string (data_str0 + line[LEFT], line.length ());
}
void
char const *line_start = (char const *)data + line[LEFT];
ssize left = (char const *) pos_str0 - line_start;
- std::string line_begin (line_start, left);
+ string line_begin (line_start, left);
char const *line_chars = line_begin.c_str ();
*column = 0;
while (left > 0)
{
- wchar_t multibyte[2];
-
/*
FIXME, this is apparently locale dependent.
*/
#if HAVE_MBRTOWC
+ wchar_t multibyte[2];
size_t thislen = mbrtowc (multibyte, line_chars, left, &state);
#else
size_t thislen = 1;
if (!newline_locations_.size ())
return 1;
- vsize lo = 0;
- vsize hi = newline_locations_.size ();
-
- if (newline_locations_[lo] > pos_str0)
- return 1;
+ /* this will find the '\n' character at the end of our line */
+ vsize lo = lower_bound (newline_locations_,
+ pos_str0,
+ less<char const*> ());
- if (newline_locations_[hi - 1] < pos_str0)
- return hi;
+ /* the return value will be indexed from 1 */
+ return lo + 1 + line_offset_;
+}
- binary_search_bounds (newline_locations_,
- (char const*)pos_str0,
- default_compare,
- &lo, &hi);
+void
+Source_file::set_line (char const *pos_str0, int line)
+{
+ int current_line = get_line (pos_str0);
+ line_offset_ += line - current_line;
- if (*pos_str0 == '\n')
- lo--;
- return lo + 2;
+ assert (line == get_line (pos_str0));
}
int
Source_file::length () const
{
- return length_;
+ return characters_.size ();
}
char const *
Source_file::c_str () const
{
- return contents_str0_;
+ return &characters_[0];
}
-void
-Source_file::set_pos (char const *pos_str0)
+SCM
+Source_file::get_port () const
{
- if (contains (pos_str0))
- pos_str0_ = pos_str0;
- else
- error (quote_input (pos_str0) + "invalid pos");
+ return str_port_;
}
-char const *
-Source_file::seek_str0 (int n)
-{
- char const *new_str0 = c_str () + n;
- if (n < 0)
- new_str0 += length ();
- if (contains (new_str0))
- pos_str0_ = new_str0;
- else
- error (quote_input (new_str0) + "seek past eof");
+/****************************************************************/
- return pos_str0_;
-}
+#include "ly-smobs.icc"
-char const *
-Source_file::forward_str0 (int n)
+IMPLEMENT_SMOBS (Source_file);
+IMPLEMENT_DEFAULT_EQUAL_P (Source_file);
+IMPLEMENT_TYPE_P (Source_file, "ly:source-file?");
+
+SCM
+Source_file::mark_smob (SCM smob)
{
- char const *old_pos = pos_str0_;
- char const *new_str0 = pos_str0_ + n;
- if (contains (new_str0))
- pos_str0_ = new_str0;
- else
- error (quote_input (new_str0) + "forward past eof");
+ Source_file *sc = (Source_file *) SCM_CELL_WORD_1 (smob);
- return old_pos;
+ return sc->str_port_;
}
-std::string
-Source_file::get_string (int n)
-{
- std::string str = std::string ((char const *)forward_str0 (n), n);
- return str;
-}
-SCM
-Source_file::get_port () const
+int
+Source_file::print_smob (SCM smob, SCM port, scm_print_state *)
{
- return str_port_;
+ Source_file *sc = (Source_file *) SCM_CELL_WORD_1 (smob);
+
+ scm_puts ("#<Source_file ", port);
+ scm_puts (sc->name_.c_str (), port);
+
+ /* Do not print properties, that is too much hassle. */
+ scm_puts (" >", port);
+ return 1;
}
+
projects / lilypond.git / blobdiff