From 51175189c6d7313a3b84019e39496f957c4e6164 Mon Sep 17 00:00:00 2001
From: Stefano Karapetsas <stefano@karapetsas.com>
Date: Sun, 11 Dec 2011 12:55:19 +0100
Subject: moved from Mate-Extra

---
 src/egg-string.c | 453 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 453 insertions(+)
 create mode 100644 src/egg-string.c

(limited to 'src/egg-string.c')

diff --git a/src/egg-string.c b/src/egg-string.c
new file mode 100644
index 0000000..204e6d9
--- /dev/null
+++ b/src/egg-string.c
@@ -0,0 +1,453 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
+ *
+ * Copyright (C) 2007-2008 Richard Hughes <richard@hughsie.com>
+ *
+ * Licensed under the GNU General Public License Version 2
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/**
+ * SECTION:pk-common
+ * @short_description: Common utility functions for PackageKit
+ *
+ * This file contains functions that may be useful.
+ */
+
+#include "config.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <string.h>
+#include <sys/types.h>
+#include <sys/utsname.h>
+#include <sys/stat.h>
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif /* HAVE_UNISTD_H */
+
+#include <glib.h>
+
+#include "egg-debug.h"
+#include "egg-string.h"
+
+/**
+ * egg_strtoint:
+ * @text: The text the convert
+ * @value: The return numeric return value
+ *
+ * Converts a string into a signed integer value in a safe way.
+ *
+ * Return value: %TRUE if the string was converted correctly
+ **/
+gboolean
+egg_strtoint (const gchar *text, gint *value)
+{
+	gchar *endptr = NULL;
+	gint64 value_raw;
+
+	/* invalid */
+	if (text == NULL)
+		return FALSE;
+
+	/* parse */
+	value_raw = g_ascii_strtoll (text, &endptr, 10);
+
+	/* parsing error */
+	if (endptr == text)
+		return FALSE;
+
+	/* out of range */
+	if (value_raw > G_MAXINT || value_raw < G_MININT)
+		return FALSE;
+
+	/* cast back down to value */
+	*value = (gint) value_raw;
+	return TRUE;
+}
+
+/**
+ * egg_strtouint:
+ * @text: The text the convert
+ * @value: The return numeric return value
+ *
+ * Converts a string into a unsigned integer value in a safe way.
+ *
+ * Return value: %TRUE if the string was converted correctly
+ **/
+gboolean
+egg_strtouint (const gchar *text, guint *value)
+{
+	gchar *endptr = NULL;
+	guint64 value_raw;
+
+	/* invalid */
+	if (text == NULL)
+		return FALSE;
+
+	/* parse */
+	value_raw = g_ascii_strtoull (text, &endptr, 10);
+
+	/* parsing error */
+	if (endptr == text)
+		return FALSE;
+
+	/* out of range */
+	if (value_raw > G_MAXINT)
+		return FALSE;
+
+	/* cast back down to value */
+	*value = (guint) value_raw;
+	return TRUE;
+}
+
+/**
+ * egg_strzero:
+ * @text: The text to check
+ *
+ * This function is a much safer way of doing "if (strlen (text) == 0))"
+ * as it does not rely on text being NULL terminated. It's also much
+ * quicker as it only checks the first byte rather than scanning the whole
+ * string just to verify it's not zero length.
+ *
+ * Return value: %TRUE if the string was converted correctly
+ **/
+gboolean
+egg_strzero (const gchar *text)
+{
+	if (text == NULL)
+		return TRUE;
+	if (text[0] == '\0')
+		return TRUE;
+	return FALSE;
+}
+
+/**
+ * egg_strlen:
+ * @text: The text to check
+ * @len: The maximum length of the string
+ *
+ * This function is a much safer way of doing strlen as it checks for NULL and
+ * a stupidly long string.
+ *
+ * Return value: the length of the string, or len if the string is too long.
+ **/
+guint
+egg_strlen (const gchar *text, guint len)
+{
+	guint i;
+
+	/* common case */
+	if (text == NULL || text[0] == '\0')
+		return 0;
+
+	/* only count up to len */
+	for (i=1; i<len; i++) {
+		if (text[i] == '\0')
+			break;
+	}
+	return i;
+}
+
+/**
+ * egg_strvequal:
+ * @id1: the first item of text to test
+ * @id2: the second item of text to test
+ *
+ * This function will check to see if the GStrv arrays are string equal
+ *
+ * Return value: %TRUE if the arrays are the same, or are both %NULL
+ **/
+gboolean
+egg_strvequal (gchar **id1, gchar **id2)
+{
+	guint i;
+	guint length1;
+	guint length2;
+
+	if (id1 == NULL && id2 == NULL)
+		return TRUE;
+
+	if (id1 == NULL || id2 == NULL) {
+		egg_debug ("GStrv compare invalid '%p' and '%p'", id1, id2);
+		return FALSE;
+	}
+
+	/* check different sizes */
+	length1 = g_strv_length (id1);
+	length2 = g_strv_length (id2);
+	if (length1 != length2)
+		return FALSE;
+
+	/* text equal each one */
+	for (i=0; i<length1; i++) {
+		if (g_strcmp0 (id1[i], id2[i]) != 0)
+			return FALSE;
+	}
+
+	return TRUE;
+}
+
+/**
+ * egg_strreplace:
+ * @text: The input text to make safe
+ * @find: What to search for
+ * @replace: What to replace with
+ *
+ * Replaces chars in the text with a replacement.
+ * The %find and %replace variables to not have to be of the same length
+ *
+ * Return value: the new string (copied)
+ **/
+gchar *
+egg_strreplace (const gchar *text, const gchar *find, const gchar *replace)
+{
+	gchar **array;
+	gchar *retval;
+
+	/* common case, not found */
+	if (strstr (text, find) == NULL) {
+		return g_strdup (text);
+	}
+
+	/* split apart and rejoin with new delimiter */
+	array = g_strsplit (text, find, 0);
+	retval = g_strjoinv (replace, array);
+	g_strfreev (array);
+	return retval;
+}
+
+/***************************************************************************
+ ***                          MAKE CHECK TESTS                           ***
+ ***************************************************************************/
+#ifdef EGG_TEST
+#include "egg-test.h"
+
+void
+egg_string_test (EggTest *test)
+{
+	gboolean ret;
+	gchar *text_safe;
+	const gchar *temp;
+	guint length;
+	gint value;
+	guint uvalue;
+	gchar **id1;
+	gchar **id2;
+
+	if (!egg_test_start (test, "EggString"))
+		return;
+
+	/************************************************************
+	 ****************    String array equal    ******************
+	 ************************************************************/
+	egg_test_title (test, "egg_strvequal same argument");
+	id1 = g_strsplit ("the quick brown fox", " ", 0);
+	if (egg_strvequal (id1, id1))
+		egg_test_success (test, NULL);
+	else
+		egg_test_failed (test, "incorrect ret when both same");
+	g_strfreev (id1);
+
+	/************************************************************/
+	egg_test_title (test, "egg_strvequal same");
+	id1 = g_strsplit ("the quick brown fox", " ", 0);
+	id2 = g_strsplit ("the quick brown fox", " ", 0);
+	if (egg_strvequal (id1, id2))
+		egg_test_success (test, NULL);
+	else
+		egg_test_failed (test, "incorrect ret when both same");
+	g_strfreev (id1);
+	g_strfreev (id2);
+
+	/************************************************************/
+	egg_test_title (test, "egg_strvequal different lengths");
+	id1 = g_strsplit ("the quick brown", " ", 0);
+	id2 = g_strsplit ("the quick brown fox", " ", 0);
+	if (!egg_strvequal (id1, id2))
+		egg_test_success (test, NULL);
+	else
+		egg_test_failed (test, "incorrect ret when both same");
+	g_strfreev (id1);
+	g_strfreev (id2);
+
+	/************************************************************/
+	egg_test_title (test, "egg_strvequal different");
+	id1 = g_strsplit ("the quick brown fox", " ", 0);
+	id2 = g_strsplit ("richard hughes maintainer dude", " ", 0);
+	if (!egg_strvequal (id1, id2))
+		egg_test_success (test, NULL);
+	else
+		egg_test_failed (test, "same when different");
+	g_strfreev (id1);
+	g_strfreev (id2);
+
+	/************************************************************
+	 ****************          Zero            ******************
+	 ************************************************************/
+	temp = NULL;
+	egg_test_title (test, "test strzero (null)");
+	ret = egg_strzero (NULL);
+	if (ret)
+		egg_test_success (test, NULL);
+	else
+		egg_test_failed (test, "failed null");
+
+	/************************************************************/
+	egg_test_title (test, "test strzero (null first char)");
+	ret = egg_strzero ("");
+	if (ret)
+		egg_test_success (test, NULL);
+	else
+		egg_test_failed (test, "failed null");
+
+	/************************************************************/
+	egg_test_title (test, "test strzero (long string)");
+	ret = egg_strzero ("Richard");
+	if (!ret)
+		egg_test_success (test, NULL);
+	else
+		egg_test_failed (test, "zero length word!");
+
+	/************************************************************/
+	egg_test_title (test, "id strcmp pass");
+	ret = (g_strcmp0 ("moo;0.0.1;i386;fedora", "moo;0.0.1;i386;fedora") == 0);
+	egg_test_assert (test, ret);
+
+	/************************************************************/
+	egg_test_title (test, "id strcmp fail");
+	ret = (g_strcmp0 ("moo;0.0.1;i386;fedora", "moo;0.0.2;i386;fedora") == 0);
+	egg_test_assert (test, !ret);
+
+	/************************************************************
+	 ****************          strlen          ******************
+	 ************************************************************/
+	egg_test_title (test, "strlen bigger");
+	length = egg_strlen ("123456789", 20);
+	if (length == 9)
+		egg_test_success (test, NULL);
+	else
+		egg_test_failed (test, "failed the strlen %i", length);
+
+	/************************************************************/
+	egg_test_title (test, "strlen smaller");
+	length = egg_strlen ("123456789", 5);
+	if (length == 5)
+		egg_test_success (test, NULL);
+	else
+		egg_test_failed (test, "failed the strlen %i", length);
+
+	/************************************************************/
+	egg_test_title (test, "strlen correct");
+	length = egg_strlen ("123456789", 9);
+	if (length == 9)
+		egg_test_success (test, NULL);
+	else
+		egg_test_failed (test, "failed the strlen %i", length);
+
+	/************************************************************
+	 ****************         Replace          ******************
+	 ************************************************************/
+	egg_test_title (test, "replace start");
+	text_safe = egg_strreplace ("richard\nhughes", "r", "e");
+	if (g_strcmp0 (text_safe, "eichaed\nhughes") == 0)
+		egg_test_success (test, NULL);
+	else
+		egg_test_failed (test, "failed the replace '%s'", text_safe);
+	g_free (text_safe);
+
+	/************************************************************/
+	egg_test_title (test, "replace none");
+	text_safe = egg_strreplace ("richard\nhughes", "dave", "e");
+	if (g_strcmp0 (text_safe, "richard\nhughes") == 0)
+		egg_test_success (test, NULL);
+	else
+		egg_test_failed (test, "failed the replace '%s'", text_safe);
+	g_free (text_safe);
+
+	/************************************************************/
+	egg_test_title (test, "replace end");
+	text_safe = egg_strreplace ("richard\nhughes", "s", "e");
+	if (g_strcmp0 (text_safe, "richard\nhughee") == 0)
+		egg_test_success (test, NULL);
+	else
+		egg_test_failed (test, "failed the replace '%s'", text_safe);
+	g_free (text_safe);
+
+	/************************************************************/
+	egg_test_title (test, "replace unicode");
+	text_safe = egg_strreplace ("richard\n- hughes", "\n- ", "\n• ");
+	if (g_strcmp0 (text_safe, "richard\n• hughes") == 0)
+		egg_test_success (test, NULL);
+	else
+		egg_test_failed (test, "failed the replace '%s'", text_safe);
+	g_free (text_safe);
+
+	/************************************************************
+	 **************        Convert numbers       ****************
+	 ************************************************************/
+	egg_test_title (test, "convert valid number");
+	ret = egg_strtoint ("234", &value);
+	if (ret && value == 234)
+		egg_test_success (test, NULL);
+	else
+		egg_test_failed (test, "value is %i", value);
+
+	/************************************************************/
+	egg_test_title (test, "convert negative valid number");
+	ret = egg_strtoint ("-234", &value);
+	if (ret && value == -234)
+		egg_test_success (test, NULL);
+	else
+		egg_test_failed (test, "value is %i", value);
+
+	/************************************************************/
+	egg_test_title (test, "don't convert invalid number");
+	ret = egg_strtoint ("dave", &value);
+	if (!ret)
+		egg_test_success (test, NULL);
+	else
+		egg_test_failed (test, "value is %i", value);
+
+	/************************************************************/
+	egg_test_title (test, "convert NULL to a number");
+	ret = egg_strtouint (NULL, &uvalue);
+	if (!ret)
+		egg_test_success (test, NULL);
+	else
+		egg_test_failed (test, "value is %i", uvalue);
+
+	/************************************************************/
+	egg_test_title (test, "convert valid uint number");
+	ret = egg_strtouint ("234", &uvalue);
+	if (ret && uvalue == 234)
+		egg_test_success (test, NULL);
+	else
+		egg_test_failed (test, "value is %i", uvalue);
+
+	/************************************************************/
+	egg_test_title (test, "convert invalid uint number");
+	ret = egg_strtouint ("-234", &uvalue);
+	if (ret == FALSE)
+		egg_test_success (test, NULL);
+	else
+		egg_test_failed (test, "value is %i", uvalue);
+
+	egg_test_end (test);
+}
+#endif
+
-- 
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