/*
  binary-source-file.cc -- implement Binary_source_file

  source file of the LilyPond music typesetter

  (c) 1997 Jan Nieuwenhuizen
*/


#include <limits.h>		// INT_MAX
#include <assert.h>

#include "proto.hh"
#include "plist.hh"
#include "string.hh"
#include "source-file.hh"
#include "binary-source-file.hh"
#include "string-convert.hh"

Binary_source_file::Binary_source_file( String& filename_str )
	: Source_file( filename_str )
{
}

Binary_source_file::~Binary_source_file()
{
}

String
Binary_source_file::error_str( char const* pos_ch_c_l )
{
    assert( this );
    if ( !in_b( pos_ch_c_l ) )
	return "";

    char const* begin_ch_c_l = pos_ch_c_l - 8 >? ch_C();
    char const* end_ch_c_l = pos_ch_c_l + 7 <? ch_C() + length_off();

    String pre_str( (Byte const*)begin_ch_c_l, pos_ch_c_l - begin_ch_c_l );
    pre_str = String_convert::bin2hex_str( pre_str );
    for ( int i = 2; i < pre_str.length_i(); i += 3 )
	pre_str = pre_str.left_str( i ) + " " + pre_str.mid_str( i, INT_MAX );
    String post_str( (Byte const*)pos_ch_c_l, end_ch_c_l - pos_ch_c_l );
    post_str = String_convert::bin2hex_str( post_str );
    for ( int i = 2; i < post_str.length_i(); i += 3 )
	post_str = post_str.left_str( i ) + " " + post_str.mid_str( i, INT_MAX );

    String str = pre_str
	+ String( '\n' )
    	+ String( ' ', pre_str.length_i() + 1 ) 
    	+ post_str;
    return str;
}

int
Binary_source_file::line_i( char const* pos_ch_c_l )
{
    if ( !in_b( pos_ch_c_l ) )
    	return 0;

    return pos_ch_c_l - ch_C();
}

