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- -- This file is part of SmallEiffel The GNU Eiffel Compiler.
- -- Copyright (C) 1994-98 LORIA - UHP - CRIN - INRIA - FRANCE
- -- Dominique COLNET and Suzanne COLLIN - colnet@loria.fr
- -- http://SmallEiffel.loria.fr
- -- SmallEiffel is free software; you can redistribute it and/or modify it
- -- under the terms of the GNU General Public License as published by the Free
- -- Software Foundation; either version 2, or (at your option) any later
- -- version. SmallEiffel is distributed in the hope that it will be useful,but
- -- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- -- for more details. You should have received a copy of the GNU General
- -- Public License along with SmallEiffel; see the file COPYING. If not,
- -- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- -- Boston, MA 02111-1307, USA.
- --
- class PARSER_BUFFER
-
- inherit GLOBALS;
-
- creation make
-
- feature
-
- path: STRING;
- -- When `is_ready', gives the `path' of the corresponding
- -- buffered file.
-
- count: INTEGER;
- -- Number of lines in the source file.
-
- is_ready: BOOLEAN is
- do
- Result := path /= Void;
- end;
-
- feature {SMALL_EIFFEL,EIFFEL_PARSER}
-
- load_file(a_path: STRING) is
- -- Try to load `a_path' and set `is_ready' when corresponding
- -- file has been loaded.
- local
- i: INTEGER;
- do
- tmp_file_read.connect_to(a_path);
- if tmp_file_read.is_connected then
- path := a_path;
- from
- if get_line(0) /= Void then
- -- unused line.
- end;
- i := 1;
- tmp_file_read.read_line_in(get_line(i));
- until
- tmp_file_read.end_of_input
- loop
- i := i + 1;
- tmp_file_read.read_line_in(get_line(i));
- end;
- if text.item(i).empty then
- count := i - 1;
- else
- count := i;
- end;
- tmp_file_read.disconnect;
- else
- path := Void;
- end;
- end;
-
- unset_is_ready is
- do
- path := Void;
- end;
-
- feature {EIFFEL_PARSER}
-
- item(line: INTEGER): STRING is
- require
- is_ready;
- 1 <= line;
- line <= count
- do
- Result := text.item(line);
- ensure
- Result /= Void
- end;
-
- feature {NONE}
-
- make is
- do
- end;
-
- text: FIXED_ARRAY[STRING] is
- -- To store the complete file to parse. Each line
- -- is one STRING without the '%N' end-of-line mark.
- once
- !!Result.with_capacity(4096);
- end;
-
- get_line(i: INTEGER): STRING is
- require
- i >= 0
- do
- if i <= text.upper then
- Result := text.item(i);
- Result.clear;
- else
- !!Result.make(medium_line_size);
- text.add_last(Result);
- end;
- ensure
- Result.empty;
- Result.capacity >= medium_line_size;
- text.item(i) = Result
- end;
-
- medium_line_size: INTEGER is 80;
-
- end -- PARSER_BUFFER
-
-