/**
* gimp_config_writer_comment:
* @writer: a #GimpConfigWriter
* @comment: the comment to write (ASCII only)
*
* Appends the @comment to @str and inserts linebreaks and hash-marks to
* format it as a comment. Note that this function does not handle non-ASCII
* characters.
*
* Since: GIMP 2.4
**/
void
gimp_config_writer_comment (GimpConfigWriter *writer,
const gchar *comment)
{
const gchar *s;
gboolean comment_mode;
gint i, len, space;
#define LINE_LENGTH 75
g_return_if_fail (writer != NULL);
if (writer->error)
return;
g_return_if_fail (writer->depth == 0);
if (!comment)
return;
comment_mode = writer->comment;
gimp_config_writer_comment_mode (writer, TRUE);
len = strlen (comment);
while (len > 0)
{
for (s = comment, i = 0, space = 0;
*s != '\n' && (i <= LINE_LENGTH || space == 0) && i < len;
s++, i++)
{
if (g_ascii_isspace (*s))
space = i;
}
if (i > LINE_LENGTH && space && *s != '\n')
i = space;
g_string_append_len (writer->buffer, comment, i);
i++;
comment += i;
len -= i;
if (len > 0)
gimp_config_writer_newline (writer);
}
gimp_config_writer_comment_mode (writer, comment_mode);
gimp_config_writer_newline (writer);
if (writer->depth == 0)
gimp_config_writer_flush (writer);
#undef LINE_LENGTH
}
void
gimp_config_writer_linefeed (GimpConfigWriter *writer)
{
g_return_if_fail (writer != NULL);
if (writer->error)
return;
if (writer->output && writer->buffer->len == 0 && !writer->comment)
{
gsize bytes_written;
GError *error = NULL;
if (! g_output_stream_write_all (writer->output, "\n", 1,
&bytes_written,
NULL, &error))
{
g_set_error (&writer->error, GIMP_CONFIG_ERROR, GIMP_CONFIG_ERROR_WRITE,
_("Error writing to '%s': %s"),
writer->file ?
gimp_file_get_utf8_name (writer->file) : "output stream",
error->message);
g_clear_error (&error);
}
}
else
{
gimp_config_writer_newline (writer);
}
}
/**
* gimp_config_writer_open:
* @writer: a #GimpConfigWriter
* @name: name of the element to open
*
* This function writes the opening parenthese followed by @name.
* It also increases the indentation level and sets a mark that
* can be used by gimp_config_writer_revert().
*
* Since: GIMP 2.4
**/
void
gimp_config_writer_open (GimpConfigWriter *writer,
const gchar *name)
{
g_return_if_fail (writer != NULL);
g_return_if_fail (name != NULL);
if (writer->error)
return;
/* store the current buffer length so we can revert to this state */
writer->marker = writer->buffer->len;
if (writer->depth > 0)
gimp_config_writer_newline (writer);
writer->depth++;
g_string_append_printf (writer->buffer, "(%s", name);
}
void
gimp_config_writer_linefeed (GimpConfigWriter *writer)
{
g_return_if_fail (writer != NULL);
if (writer->error)
return;
if (writer->buffer->len == 0 && !writer->comment)
{
if (write (writer->fd, "\n", 1) < 0)
g_set_error_literal (&writer->error,
GIMP_CONFIG_ERROR, GIMP_CONFIG_ERROR_WRITE,
g_strerror (errno));
}
else
{
gimp_config_writer_newline (writer);
}
}
/**
* gimp_config_writer_comment_mode:
* @writer: a #GimpConfigWriter
* @enable: %TRUE to enable comment mode, %FALSE to disable it
*
* This function toggles whether the @writer should create commented
* or uncommented output. This feature is used to generate the
* system-wide installed gimprc that documents the default settings.
*
* Since comments have to start at the beginning of a line, this
* function will insert a newline if necessary.
*
* Since: GIMP 2.4
**/
void
gimp_config_writer_comment_mode (GimpConfigWriter *writer,
gboolean enable)
{
g_return_if_fail (writer != NULL);
if (writer->error)
return;
enable = (enable ? TRUE : FALSE);
if (writer->comment == enable)
return;
writer->comment = enable;
if (enable)
{
if (writer->buffer->len == 0)
g_string_append_len (writer->buffer, "# ", 2);
else
gimp_config_writer_newline (writer);
}
}