gtk2/gtk/css/gtkcsslocation.c
2021-03-11 16:37:36 +00:00

75 lines
2.4 KiB
C

/* GSK - The GIMP Toolkit
* Copyright (C) 2019 Benjamin Otte <otte@gnome.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "gtkcsslocationprivate.h"
/**
* GtkCssLocation:
* @bytes: number of bytes parsed since the beginning
* @chars: number of characters parsed since the beginning
* @lines: number of full lines that have been parsed
* If you want to display this as a line number, you
* need to add 1 to this.
* @line_bytes: Number of bytes parsed since the last line break
* @line_chars: Number of characters parsed since the last line
* break
*
* Represents a location in a file or other source of data parsed
* by the CSS engine.
*
* The @bytes and @line_bytes offsets are meant to be used to
* programmatically match data. The @lines and @line_chars offsets
* can be used for printing the location in a file.
*
* Note that the @lines parameter starts from 0 and is increased
* whenever a CSS line break is encountered. (CSS defines the C character
* sequences "\r\n", "\r", "\n" and "\f" as newlines.)
* If your document uses different rules for line breaking, you might want
* run into problems here.
*/
void
gtk_css_location_init (GtkCssLocation *location)
{
memset (location, 0, sizeof (GtkCssLocation));
}
void
gtk_css_location_advance (GtkCssLocation *location,
gsize bytes,
gsize chars)
{
location->bytes += bytes;
location->chars += chars;
location->line_bytes += bytes;
location->line_chars += chars;
}
void
gtk_css_location_advance_newline (GtkCssLocation *location,
gboolean is_windows)
{
gtk_css_location_advance (location, is_windows ? 2 : 1, is_windows ? 2 : 1);
location->lines++;
location->line_bytes = 0;
location->line_chars = 0;
}