void
Source_file::load_stdin ()
{
- characters_.clear ();
+ length_ = 0;
+ chs_.clear ();
int c;
while ((c = fgetc (stdin)) != EOF)
- characters_.push_back (c);
+ chs_.push_back (c);
+
+ chs_.push_back (0);
+ length_ = chs_.size ();
+ contents_str0_ = &chs_[0];
}
-/*
- return contents of FILENAME. *Not 0-terminated!*
- */
-vector<char>
-gulp_file (string filename, int desired_size)
+char *
+gulp_file (string filename, int *filesize)
{
/* "b" must ensure to open literally, avoiding text (CR/LF)
conversions. */
if (!f)
{
warning (_f ("can't open file: `%s'", filename.c_str ()));
-
- vector<char> cxx_arr;
- return cxx_arr;
+ return 0;
}
fseek (f, 0, SEEK_END);
int real_size = ftell (f);
int read_count = real_size;
- if (desired_size > 0)
- read_count = min (read_count, desired_size);
+ if (*filesize >= 0)
+ read_count = min (read_count, *filesize);
rewind (f);
warning (_f ("expected to read %d characters, got %d", bytes_read,
read_count));
fclose (f);
- int filesize = bytes_read;
-
- vector<char> cxx_arr;
- cxx_arr.resize (filesize);
-
- copy (str, str + filesize, cxx_arr.begin ());
-
- delete[] str;
- return cxx_arr;
-}
-
-void
-Source_file::init ()
-{
- istream_ = 0;
- line_offset_ = 0;
- str_port_ = SCM_EOL;
- self_scm_ = SCM_EOL;
- smobify_self ();
+ *filesize = bytes_read;
+ return str;
}
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);
-
+ istream_ = 0;
+ length_ = data.length ();
+ contents_str0_ = string_copy (data);
+ pos_str0_ = c_str ();
init_port ();
- for (vsize i = 0; i < characters_.size (); i++)
- if (characters_[i] == '\n')
- newline_locations_.push_back (&characters_[0] + i);
+ for (int i = 0; i < length_; i++)
+ if (contents_str0_[i] == '\n')
+ newline_locations_.push_back (contents_str0_ + i);
}
Source_file::Source_file (string filename_string)
{
- init ();
-
name_ = filename_string;
+ istream_ = 0;
+ contents_str0_ = 0;
if (filename_string == "-")
load_stdin ();
else
{
- characters_ = gulp_file (filename_string, -1);
+ length_ = -1;
+ contents_str0_ = gulp_file (filename_string, &length_);
}
-
- characters_.push_back (0);
+
+ pos_str0_ = c_str ();
init_port ();
- for (vsize i = 0; i < characters_.size (); i++)
- if (characters_[i] == '\n')
- newline_locations_.push_back (&characters_[0] + i);
+ for (int i = 0; i < length_; i++)
+ if (contents_str0_[i] == '\n')
+ newline_locations_.push_back (contents_str0_ + i);
}
void
Source_file::init_port ()
{
- SCM str = scm_makfrom0str (c_str ());
+ SCM str = scm_makfrom0str (contents_str0_);
str_port_ = scm_mkstrport (SCM_INUM0, str, SCM_OPN | SCM_RDNG, __FUNCTION__);
scm_set_port_filename_x (str_port_, scm_makfrom0str (name_.c_str ()));
}
+int
+Source_file::tell () const
+{
+ return pos_str0_ - contents_str0_;
+}
istream *
Source_file::get_istream ()
Source_file::~Source_file ()
{
delete istream_;
+ istream_ = 0;
+ delete[] contents_str0_;
}
Slice
if (!newline_locations_.size ())
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*> ());
+ vsize lo = 0;
+ vsize hi = newline_locations_.size ();
- /* the return value will be indexed from 1 */
- return lo + 1 + line_offset_;
-}
+ if (newline_locations_[lo] > pos_str0)
+ return 1;
-void
-Source_file::set_line (char const *pos_str0, int line)
-{
- int current_line = get_line (pos_str0);
- line_offset_ += line - current_line;
+ if (newline_locations_[hi - 1] < pos_str0)
+ return hi;
- assert (line == get_line (pos_str0));
+ binary_search_bounds (newline_locations_,
+ (char const*&)pos_str0,
+ default_compare,
+ &lo, &hi);
+
+ if (*pos_str0 == '\n')
+ lo--;
+ return lo + 2;
}
int
Source_file::length () const
{
- return characters_.size ();
+ return length_;
}
char const *
Source_file::c_str () const
{
- return &characters_[0];
+ return contents_str0_;
}
-SCM
-Source_file::get_port () const
+void
+Source_file::set_pos (char const *pos_str0)
{
- return str_port_;
+ if (contains (pos_str0))
+ pos_str0_ = pos_str0;
+ else
+ error (quote_input (pos_str0) + "invalid pos");
}
-/****************************************************************/
-
-#include "ly-smobs.icc"
-
-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 *
+Source_file::seek_str0 (int n)
{
- Source_file *sc = (Source_file *) SCM_CELL_WORD_1 (smob);
+ 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 sc->str_port_;
+ return pos_str0_;
}
-
-int
-Source_file::print_smob (SCM smob, SCM port, scm_print_state *)
+char const *
+Source_file::forward_str0 (int n)
{
- Source_file *sc = (Source_file *) SCM_CELL_WORD_1 (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");
- scm_puts ("#<Source_file ", port);
- scm_puts (sc->name_.c_str (), port);
+ return old_pos;
+}
- /* Do not print properties, that is too much hassle. */
- scm_puts (" >", port);
- return 1;
+string
+Source_file::get_string (int n)
+{
+ string str = string ((char const *)forward_str0 (n), n);
+ return str;
}
+SCM
+Source_file::get_port () const
+{
+ return str_port_;
+}
projects / lilypond.git / blobdiff