/* Creates a file entry like "SET fish_color_cwd:FF0". Appends the result to *result (as UTF8). Returns true on success. storage may be used for temporary storage, to avoid allocations */
static bool append_file_entry(fish_message_type_t type, const wcstring &key_in, const wcstring &val_in, std::string *result, std::string *storage)
{
assert(storage != NULL);
assert(result != NULL);
// Record the length on entry, in case we need to back up
bool success = true;
const size_t result_length_on_entry = result->size();
// Append header like "SET "
result->append(type==SET ? SET_MBS : SET_EXPORT_MBS);
result->push_back(' ');
// Append variable name like "fish_color_cwd"
if (wcsvarname(key_in.c_str()))
{
debug(0, L"Illegal variable name: '%ls'", key_in.c_str());
success = false;
}
if (success && ! append_utf8(key_in, result, storage))
{
debug(0, L"Could not convert %ls to narrow character string", key_in.c_str());
success = false;
}
// Append ":"
if (success)
{
result->push_back(':');
}
// Append value
if (success && ! append_utf8(full_escape(val_in.c_str()), result, storage))
{
debug(0, L"Could not convert %ls to narrow character string", val_in.c_str());
success = false;
}
// Append newline
if (success)
{
result->push_back('\n');
}
// Don't modify result on failure. It's sufficient to simply resize it since all we ever did was append to it.
if (! success)
{
result->resize(result_length_on_entry);
}
return success;
}
/* Returns an instance of message_t allocated via new */
message_t *create_message(fish_message_type_t type,
const wchar_t *key_in,
const wchar_t *val_in)
{
message_t *msg = new message_t;
msg->count = 0;
char *key=0;
// debug( 4, L"Crete message of type %d", type );
if (key_in)
{
if (wcsvarname(key_in))
{
debug(0, L"Illegal variable name: '%ls'", key_in);
return 0;
}
key = wcs2utf(key_in);
if (!key)
{
debug(0,
L"Could not convert %ls to narrow character string",
key_in);
return 0;
}
}
switch (type)
{
case SET:
case SET_EXPORT:
{
if (!val_in)
{
val_in=L"";
}
wcstring esc = full_escape(val_in);
char *val = wcs2utf(esc.c_str());
set_body(msg, (type==SET?SET_MBS:SET_EXPORT_MBS), " ", key, ":", val, "\n", NULL);
free(val);
break;
}
case ERASE:
{
set_body(msg, ERASE_MBS, " ", key, "\n", NULL);
break;
}
case BARRIER:
{
set_body(msg, BARRIER_MBS, "\n", NULL);
break;
}
case BARRIER_REPLY:
{
set_body(msg, BARRIER_REPLY_MBS, "\n", NULL);
break;
}
default:
{
debug(0, L"create_message: Unknown message type");
}
}
free(key);
// debug( 4, L"Message body is '%s'", msg->body );
return msg;
}
message_t *create_message( int type,
const wchar_t *key_in,
const wchar_t *val_in )
{
message_t *msg=0;
char *key=0;
size_t sz;
// debug( 4, L"Crete message of type %d", type );
if( key_in )
{
if( wcsvarname( key_in ) )
{
debug( 0, L"Illegal variable name: '%ls'", key_in );
return 0;
}
key = wcs2utf(key_in);
if( !key )
{
debug( 0,
L"Could not convert %ls to narrow character string",
key_in );
return 0;
}
}
switch( type )
{
case SET:
case SET_EXPORT:
{
if( !val_in )
{
val_in=L"";
}
wcstring esc = full_escape( val_in );
char *val = wcs2utf(esc.c_str());
sz = strlen(type==SET?SET_MBS:SET_EXPORT_MBS) + strlen(key) + strlen(val) + 4;
msg = (message_t *)malloc( sizeof( message_t ) + sz );
if( !msg )
DIE_MEM();
strcpy( msg->body, (type==SET?SET_MBS:SET_EXPORT_MBS) );
strcat( msg->body, " " );
strcat( msg->body, key );
strcat( msg->body, ":" );
strcat( msg->body, val );
strcat( msg->body, "\n" );
free( val );
break;
}
case ERASE:
{
sz = strlen(ERASE_MBS) + strlen(key) + 3;
msg = (message_t *)malloc( sizeof( message_t ) + sz );
if( !msg )
DIE_MEM();
strcpy( msg->body, ERASE_MBS " " );
strcat( msg->body, key );
strcat( msg->body, "\n" );
break;
}
case BARRIER:
{
msg = (message_t *)malloc( sizeof( message_t ) +
strlen( BARRIER_MBS ) +2);
if( !msg )
DIE_MEM();
strcpy( msg->body, BARRIER_MBS "\n" );
break;
}
case BARRIER_REPLY:
{
msg = (message_t *)malloc( sizeof( message_t ) +
strlen( BARRIER_REPLY_MBS ) +2);
if( !msg )
DIE_MEM();
strcpy( msg->body, BARRIER_REPLY_MBS "\n" );
break;
}
default:
{
debug( 0, L"create_message: Unknown message type" );
}
}
free( key );
if( msg )
msg->count=0;
// debug( 4, L"Message body is '%s'", msg->body );
return msg;
}
