WIP - add extractor, generate snippet_data

node_modules/sharp/vendor/include/libcroco/cr-utils.h

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+/* -*- Mode: C; indent-tabs-mode: nil; c-basic-offset: 8 -*- */
+
+/*
+ * This file is part of The Croco Library
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2.1 of the GNU Lesser General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program 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 Lesser General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA
+ *
+ * Author: Dodji Seketeli
+ * Look at file COPYRIGHTS for copyright information
+ */
+
+#ifndef __CR_DEFS_H__
+#define __CR_DEFS_H__
+
+#include <stdio.h>
+#include <glib.h>
+#include "libcroco-config.h"
+
+G_BEGIN_DECLS
+
+/**
+ *@file
+ *The Croco library basic types definitions
+ *And global definitions.
+ */
+
+/**
+ *The status type returned
+ *by the methods of the croco library.
+ */
+enum CRStatus {
+        CR_OK,
+        CR_BAD_PARAM_ERROR,
+        CR_INSTANCIATION_FAILED_ERROR,
+        CR_UNKNOWN_TYPE_ERROR,
+        CR_UNKNOWN_PROP_ERROR,
+        CR_UNKNOWN_PROP_VAL_ERROR,
+        CR_UNEXPECTED_POSITION_SCHEME,
+        CR_START_OF_INPUT_ERROR,
+        CR_END_OF_INPUT_ERROR,
+        CR_OUTPUT_TOO_SHORT_ERROR,
+        CR_INPUT_TOO_SHORT_ERROR,
+        CR_OUT_OF_BOUNDS_ERROR,
+        CR_EMPTY_PARSER_INPUT_ERROR,
+        CR_ENCODING_ERROR,
+        CR_ENCODING_NOT_FOUND_ERROR,
+        CR_PARSING_ERROR,
+        CR_SYNTAX_ERROR,
+        CR_NO_ROOT_NODE_ERROR,
+        CR_NO_TOKEN,
+        CR_OUT_OF_MEMORY_ERROR,
+        CR_PSEUDO_CLASS_SEL_HANDLER_NOT_FOUND_ERROR,
+        CR_BAD_PSEUDO_CLASS_SEL_HANDLER_ERROR,
+        CR_ERROR,
+        CR_FILE_NOT_FOUND_ERROR,
+        CR_VALUE_NOT_FOUND_ERROR
+} ;
+
+/**
+ *Values used by
+ *cr_input_seek_position() ;
+ */
+enum CRSeekPos {
+        CR_SEEK_CUR,
+        CR_SEEK_BEGIN,
+        CR_SEEK_END
+} ;
+
+/**
+ *Encoding values.
+ */
+enum CREncoding 
+{
+        CR_UCS_4 = 1/*Must be not NULL*/,
+        CR_UCS_1,
+        CR_ISO_8859_1,
+        CR_ASCII,
+        CR_UTF_8,
+        CR_UTF_16,
+        CR_AUTO/*should be the last one*/
+} ;
+
+
+
+
+#define CROCO_LOG_DOMAIN "LIBCROCO"
+
+#ifdef __GNUC__
+#define cr_utils_trace(a_log_level, a_msg) \
+g_log (CROCO_LOG_DOMAIN, \
+       G_LOG_LEVEL_CRITICAL, \
+       "file %s: line %d (%s): %s\n", \
+       __FILE__, \
+       __LINE__, \
+       __PRETTY_FUNCTION__, \
+	a_msg)
+#else /*__GNUC__*/
+
+#define cr_utils_trace(a_log_level, a_msg) \
+g_log (CROCO_LOG_DOMAIN, \
+       G_LOG_LEVEL_CRITICAL, \
+       "file %s: line %d: %s\n", \
+       __FILE__, \
+       __LINE__, \
+       a_msg)
+#endif
+
+/**
+ *Traces an info message.
+ *The file, line and enclosing function
+ *of the message will be automatically 
+ *added to the message.
+ *@param a_msg the msg to trace.
+ */
+#define cr_utils_trace_info(a_msg) \
+cr_utils_trace (G_LOG_LEVEL_INFO, a_msg)
+
+/**
+ *Trace a debug message.
+ *The file, line and enclosing function
+ *of the message will be automatically
+ *added to the message.
+ *@param a_msg the msg to trace.
+ */
+#define cr_utils_trace_debug(a_msg) \
+cr_utils_trace (G_LOG_LEVEL_DEBUG, a_msg) ;
+
+
+/****************************
+ *Encoding transformations and
+ *encoding helpers
+ ****************************/
+
+enum CRStatus
+cr_utils_read_char_from_utf8_buf (const guchar * a_in, gulong a_in_len,
+                                  guint32 *a_out, gulong *a_consumed) ;
+
+enum CRStatus
+cr_utils_ucs1_to_utf8 (const guchar *a_in, gulong *a_in_len,
+                       guchar *a_out, gulong *a_out_len) ;
+
+enum CRStatus
+cr_utils_utf8_to_ucs1 (const guchar * a_in, gulong * a_in_len,
+                       guchar *a_out, gulong *a_out_len) ;
+
+enum CRStatus
+cr_utils_ucs4_to_utf8 (const guint32 *a_in, gulong *a_in_len,
+                       guchar *a_out, gulong *a_out_len) ;
+
+enum CRStatus
+cr_utils_utf8_str_len_as_ucs4 (const guchar *a_in_start,
+                               const guchar *a_in_end,
+                               gulong *a_len) ;
+enum CRStatus
+cr_utils_ucs1_str_len_as_utf8 (const guchar *a_in_start, 
+                               const guchar *a_in_end,
+                               gulong *a_len) ;
+enum CRStatus
+cr_utils_utf8_str_len_as_ucs1 (const guchar *a_in_start,
+                               const guchar *a_in_end,
+                               gulong *a_len) ;
+enum CRStatus
+cr_utils_ucs4_str_len_as_utf8 (const guint32 *a_in_start, 
+                               const guint32 *a_in_end,
+                               gulong *a_len) ;
+
+enum CRStatus
+cr_utils_ucs1_str_to_utf8 (const guchar *a_in_start, 
+                           gulong *a_in_len,
+                           guchar **a_out, 
+                           gulong *a_len) ;
+
+enum CRStatus
+cr_utils_utf8_str_to_ucs1 (const guchar * a_in_start, 
+                           gulong * a_in_len,
+                           guchar **a_out, 
+                           gulong *a_out_len) ;
+
+enum CRStatus
+cr_utils_utf8_to_ucs4 (const guchar * a_in, 
+                       gulong * a_in_len,
+                       guint32 *a_out, gulong *a_out_len) ;
+
+enum CRStatus
+cr_utils_ucs4_str_to_utf8 (const guint32 *a_in, 
+                           gulong *a_in_len,
+                           guchar **a_out, gulong *a_out_len) ;
+
+enum CRStatus
+cr_utils_utf8_str_to_ucs4 (const guchar * a_in, 
+                           gulong *a_in_len,
+                           guint32 **a_out, 
+                           gulong *a_out_len) ;
+
+
+/*****************************************
+ *CSS basic types identification utilities
+ *****************************************/
+
+gboolean
+cr_utils_is_newline (guint32 a_char) ;
+
+gboolean
+cr_utils_is_white_space (guint32 a_char) ;
+
+gboolean
+cr_utils_is_nonascii (guint32 a_char) ;
+
+gboolean
+cr_utils_is_hexa_char (guint32 a_char) ;
+
+
+/**********************************
+ *Miscellaneous utility functions
+ ***********************************/
+
+void
+cr_utils_dump_n_chars (guchar a_char, 
+                       FILE *a_fp, 
+                       glong a_nb) ;
+
+void
+cr_utils_dump_n_chars2 (guchar a_char, 
+                        GString *a_string,
+                        glong a_nb) ;
+GList *
+cr_utils_dup_glist_of_string (GList const *a_list) ;
+
+GList *
+cr_utils_dup_glist_of_cr_string (GList const * a_list_of_strings) ;
+
+G_END_DECLS
+
+#endif /*__CR_DEFS_H__*/