added cr-string.[ch]

1 files changed, 153 insertions, 0 deletions

diff --git a/src/cr-parsing-location.c b/src/cr-parsing-location.c
new file mode 100644
index 0000000..81b05f7
--- /dev/null
+++ b/src/cr-parsing-location.c
@@ -0,0 +1,153 @@
+/* -*- Mode: C; indent-tabs-mode: ni; 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.
+ * See the COPYRIGHTS file for copyright information.
+ */
+
+#include <string.h>
+#include "cr-parsing-location.h"
+
+/**
+ *@file
+ *Definition of the #CRparsingLocation class.
+ */
+
+
+/**
+ *Instanciates a new parsing location.
+ *@return the newly instanciated #CRParsingLocation.
+ *Must be freed by cr_parsing_location_destroy()
+ */
+CRParsingLocation * 
+cr_parsing_location_new (void)
+{
+	CRParsingLocation * result = NULL ;
+
+	result = g_try_malloc (sizeof (CRParsingLocation)) ;
+	if (!result) {
+		cr_utils_trace_info ("Out of memory error") ;
+		return NULL ;
+	}
+	cr_parsing_location_init (result) ;
+	return result ;
+}
+
+/**
+ *Initializes the an instance of #CRparsingLocation.
+ *@param a_this the current instance of #CRParsingLocation.
+ *@return CR_OK upon
+ */
+enum CRStatus 
+cr_parsing_location_init (CRParsingLocation *a_this)
+{
+	g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR) ;
+
+	memset (a_this, 0, sizeof (CRParsingLocation)) ;
+	return CR_OK ;
+}
+
+/**
+ *Copies an instance of CRParsingLocation into another one.
+ *@param a_to the destination of the copy. 
+ *Must be allocated by the caller.
+ *@param a_from the source of the copy.
+ *@return CR_OK upon succesful completion, an error code
+ *otherwise.
+ */
+enum CRStatus 
+cr_parsing_location_copy (CRParsingLocation *a_to,
+			  CRParsingLocation *a_from)
+{
+	g_return_val_if_fail (a_to && a_from, CR_BAD_PARAM_ERROR) ;
+
+	memcpy (a_to, a_from, sizeof (CRParsingLocation)) ;
+	return CR_OK ;
+}
+
+/**
+ *@param a_this the current instance of #CRParsingLocation.
+ *@param a_mask a bitmap that defines which parts of the
+ *parsing location are to be serialized (line, column or byte offset)
+ *@return the serialized string or NULL in case of an error.
+ */
+gchar * 
+cr_parsing_location_to_string (CRParsingLocation *a_this,
+			       enum CRParsingLocationSerialisationMask a_mask)
+{
+	GString *result = NULL ;
+	gchar *str = NULL ;
+
+	g_return_val_if_fail (a_this, NULL) ;
+
+	if (!a_mask) {
+		a_mask = DUMP_LINE | DUMP_COLUMN | DUMP_BYTE_OFFSET ;
+	}
+	result =g_string_new (NULL) ;
+	if (!result)
+		return NULL ;
+	if (a_mask & DUMP_LINE) {
+		g_string_append_printf (result, "line:%d ", 
+					a_this->line) ;
+	}
+	if (a_mask & DUMP_COLUMN) {
+		g_string_append_printf (result, "column:%d ", 
+					a_this->column) ;
+	}
+	if (a_mask & DUMP_BYTE_OFFSET) {
+		g_string_append_printf (result, "byte offset:%d ", 
+					a_this->byte_offset) ;
+	}
+	if (result->len) {
+		str = result->str ;
+		g_string_free (result, FALSE) ;
+	} else {
+		g_string_free (result, TRUE) ;
+	}
+	return str ;
+}
+
+void
+cr_parsing_location_dump (CRParsingLocation *a_this,
+			  enum CRParsingLocationSerialisationMask a_mask,
+			  FILE *a_fp)
+{
+	gchar *str = NULL ;
+
+	g_return_if_fail (a_this && a_fp) ;
+	str = cr_parsing_location_to_string (a_this, a_mask) ;
+	if (str) {
+		fprintf (a_fp, "%s", str) ;
+		g_free (str) ;
+		str = NULL ;
+	}
+}
+
+/**
+ *Destroys the current instance of #CRParsingLocation
+ *@param a_this the current instance of #CRParsingLocation. Must
+ *have been allocated with cr_parsing_location_new().
+ */
+void 
+cr_parsing_location_destroy (CRParsingLocation *a_this)
+{
+	g_return_if_fail (a_this) ;
+	g_free (a_this) ;
+}
+