source file of the GNU LilyPond music typesetter
- (c) 1997--2004 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 1997--2005 Jan Nieuwenhuizen <janneke@gnu.org>
Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include "config.hh"
+#if HAVE_UTF8_WCHAR_H
+#include <utf8/wchar.h> /* mbrtowc */
+#else
+#include <cwchar> /* mbrtowc */
+#endif
+
#include <cstdio>
+
#if HAVE_SSTREAM
#include <sstream>
#else
#include <strstream>
-#define istringstream(x) istrstream(x, length ())
+#define istringstream(x) istrstream (x, length ())
#endif
+using namespace std;
#include "warn.hh"
+#include "file-name-map.hh"
void
Source_file::load_stdin ()
contents_str0_ = chs.remove_array ();
}
-char*
+char *
gulp_file (String filename, int *filesize)
{
/* "b" must ensure to open literally, avoiding text (CR/LF)
}
fseek (f, 0, SEEK_END);
- *filesize = ftell (f);
+ int real_size = ftell (f);
+ int read_count = real_size;
+
+ if (*filesize >= 0)
+ read_count = min (read_count, *filesize);
+
rewind (f);
- char *str = new char[*filesize + 1];
- str[*filesize] = 0;
+ char *str = new char[read_count + 1];
+ str[read_count] = 0;
- int bytes_read = fread (str, sizeof (char), *filesize, f);
- if (bytes_read != *filesize)
- warning (_f ("Huh? Got %d, expected %d characters", bytes_read,
- *filesize));
+ int bytes_read = fread (str, sizeof (char), read_count, f);
+ if (bytes_read != read_count)
+ warning (_f ("expected to read %d characters, got %d", bytes_read,
+ read_count));
fclose (f);
-
+ *filesize = bytes_read;
return str;
}
{
name_ = filename;
istream_ = 0;
- contents_str0_ = data.get_copy_str0();
+ contents_str0_ = data.get_copy_str0 ();
length_ = data.length ();
pos_str0_ = to_str0 ();
init_port ();
+
+ for (int i = 0; i < length_; i++)
+ if (contents_str0_[i] == '\n')
+ newline_locations_.push (contents_str0_ + i);
}
Source_file::Source_file (String filename_string)
if (filename_string == "-")
load_stdin ();
else
- contents_str0_ = gulp_file (filename_string, &length_);
+ {
+ length_ = -1;
+ contents_str0_ = gulp_file (filename_string, &length_);
+ }
pos_str0_ = to_str0 ();
int
Source_file::tell () const
{
- return pos_str0_ - contents_str0_;
+ return pos_str0_ - contents_str0_;
}
-std::istream*
+istream *
Source_file::get_istream ()
{
if (!istream_)
{
if (length ()) // can-t this be done without such a hack?
- istream_ = new std::istringstream (to_str0 ());
+ istream_ = new istringstream (to_str0 ());
else
{
- istream_ = new std::istringstream ("");
- istream_->setstate (std::ios::eofbit);
+ istream_ = new istringstream ("");
+ istream_->setstate (ios::eofbit);
// istream_->set (ios::eofbit);
}
}
if (!to_str0 ())
return " (" + _ ("position unknown") + ")";
else
- return name_string () + ":" + to_string (get_line (context_str0))
- + ":" + to_string (get_char (context_str0));
+ {
+ int l, ch, col;
+ get_counts (context_str0, &l, &ch, &col);
+
+ return name_string () + ":" + to_string (l)
+ + ":" + to_string (col);
+ }
+}
+
+String
+Source_file::quote_input (char const *pos_str0) const
+{
+ if (!contains (pos_str0))
+ return " (" + _ ("position unknown") + ")";
+
+ int l, ch, col;
+ get_counts (pos_str0, &l, &ch, &col);
+ String line = line_string (pos_str0);
+ String context = line.left_string (ch)
+ + to_string ('\n')
+ + to_string (' ', col)
+ + line.cut_string (ch, INT_MAX);
+ return context;
}
String
Source_file::name_string () const
{
- return name_;
+ return map_file_name (name_);
}
Source_file::~Source_file ()
}
Slice
-Source_file::line_slice (char const* pos_str0) const
+Source_file::line_slice (char const *pos_str0) const
{
if (!contains (pos_str0))
- return Slice (0,0);
+ return Slice (0, 0);
- char const* data_str0 = to_str0 ();
- char const * eof_C_ = data_str0 + length ();
+ char const *data_str0 = to_str0 ();
+ char const *eof_C_ = data_str0 + length ();
if (pos_str0 == eof_C_)
- pos_str0 --;
- char const* begin_str0 = pos_str0;
+ pos_str0--;
+ char const *begin_str0 = pos_str0;
while (begin_str0 > data_str0)
if (*--begin_str0 == '\n')
{
break;
}
- char const* end_str0 = pos_str0;
+ char const *end_str0 = pos_str0;
while (end_str0 < eof_C_)
if (*end_str0++ == '\n')
{
}
String
-Source_file::line_string (char const* pos_str0) const
+Source_file::line_string (char const *pos_str0) const
{
if (!contains (pos_str0))
return "";
Slice line = line_slice (pos_str0);
- char const* data_str0 = to_str0 ();
- return String ((Byte const*)data_str0 + line[LEFT], line.length ());
+ char const *data_str0 = to_str0 ();
+ return String ((Byte const *)data_str0 + line[LEFT], line.length ());
}
-int
-Source_file::get_char (char const* pos_str0) const
+void
+Source_file::get_counts (char const *pos_str0,
+ int *line_number,
+ int *line_char,
+ int *column) const
{
if (!contains (pos_str0))
- return 0;
+ return;
- char const* data_str0 = to_str0 ();
- return pos_str0 - (line_slice (pos_str0)[SMALLER] + data_str0);
-}
+ *line_number = get_line (pos_str0);
-int
-Source_file::get_column (char const* pos_str0) const
-{
- if (!contains (pos_str0))
- return 0;
+ Slice line = line_slice (pos_str0);
+ char const *data = to_str0 ();
+ Byte const *line_start = (Byte const *)data + line[LEFT];
- int ch_i = get_char (pos_str0);
- String line = line_string (pos_str0);
+ int left = (Byte const *) pos_str0 - line_start;
+ String line_begin (line_start, left);
+ char const *line_chars = line_begin.to_str0 ();
- int col_i = 0;
- for (int i = 0; i < ch_i; i++)
- if (line[i] == '\t')
- col_i = (col_i / 8 + 1) * 8;
- else
- col_i++;
+ *column = 0;
+ *line_char = 0;
- return col_i;
-}
+ mbstate_t state;
-String
-Source_file::error_string (char const* pos_str0) const
-{
- if (!contains (pos_str0))
- return " (" + _ ("position unknown") + ")";
+ /* Initialize the state. */
+ memset (&state, '\0', sizeof (state));
- int ch_i = get_char (pos_str0);
- String line = line_string (pos_str0);
- String context = line.left_string (ch_i)
- + to_string ('\n')
- + to_string (' ', get_column (pos_str0))
- + line.cut_string (ch_i, INT_MAX);
+ while (left > 0)
+ {
+ wchar_t multibyte[2];
- return context;
+ /*
+ FIXME, this is apparently locale dependent.
+ */
+ size_t thislen = mbrtowc (multibyte, line_chars, left, &state);
+
+ /* Stop converting at invalid character;
+ this can mean we have read just the first part
+ of a valid character. */
+ if (thislen == (size_t) -1)
+ break;
+
+ /* We want to handle embedded NUL bytes
+ but the return value is 0. Correct this. */
+ if (thislen == 0)
+ thislen = 1;
+
+ if (thislen == 1 && line_chars[0] == '\t')
+ (*column) = (*column / 8 + 1) * 8;
+ else
+ (*column)++;
+
+ (*line_char)++;
+ /* Advance past this character. */
+ line_chars += thislen;
+ left -= thislen;
+ }
}
bool
-Source_file::contains (char const* pos_str0) const
+Source_file::contains (char const *pos_str0) const
{
return (pos_str0 && (pos_str0 >= to_str0 ()) && (pos_str0 <= to_str0 () + length ()));
}
int
-Source_file::get_line (char const* pos_str0) const
+Source_file::get_line (char const *pos_str0) const
{
if (!contains (pos_str0))
return 0;
if (!newline_locations_.size ())
return 1;
-
+
int lo = 0;
int hi = newline_locations_.size ();
if (newline_locations_[lo] > pos_str0)
return 1;
-
- if (newline_locations_[hi-1] < pos_str0)
+
+ if (newline_locations_[hi - 1] < pos_str0)
return hi;
-
+
binary_search_bounds (newline_locations_,
- pos_str0,
+ pos_str0,
Link_array<char>::default_compare,
&lo, &hi);
if (*pos_str0 == '\n')
- lo --;
+ lo--;
return lo + 2;
}
}
void
-Source_file::set_pos (char const * pos_str0)
+Source_file::set_pos (char const *pos_str0)
{
if (contains (pos_str0))
pos_str0_ = pos_str0;
else
- error (error_string (pos_str0) + "invalid pos");
+ error (quote_input (pos_str0) + "invalid pos");
}
-char const*
+char const *
Source_file::seek_str0 (int n)
{
- char const* new_str0 = to_str0 () + n;
+ char const *new_str0 = to_str0 () + n;
if (n < 0)
new_str0 += length ();
if (contains (new_str0))
pos_str0_ = new_str0;
else
- error (error_string (new_str0) + "seek past eof");
+ error (quote_input (new_str0) + "seek past eof");
return pos_str0_;
}
-char const*
+char const *
Source_file::forward_str0 (int n)
{
- char const* old_pos = pos_str0_;
- char const* new_str0 = pos_str0_ + n;
+ char const *old_pos = pos_str0_;
+ char const *new_str0 = pos_str0_ + n;
if (contains (new_str0))
pos_str0_ = new_str0;
else
- error (error_string (new_str0) + "forward past eof");
+ error (quote_input (new_str0) + "forward past eof");
return old_pos;
}
String
Source_file::get_string (int n)
{
- String str = String ((Byte const*)forward_str0 (n), n);
+ String str = String ((Byte const *)forward_str0 (n), n);
return str;
}
+
+SCM
+Source_file::get_port () const
+{
+ return str_port_;
+}
projects / lilypond.git / blobdiff