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diff --git a/3rdparty/plibsys/src/pstring.h b/3rdparty/plibsys/src/pstring.h
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+/*
+ * The MIT License
+ *
+ * Copyright (C) 2011-2016 Alexander Saprykin <saprykin.spb@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * 'Software'), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * @file pstring.h
+ * @brief String manipulation routines
+ * @author Alexander Saprykin
+ *
+ * Strings are represented as a sequence of single-byte characters (from the
+ * ASCII table) with the trailing zero character (\0).
+ *
+ * Some useful string manipulation routines are represented here.
+ */
+
+#if !defined (PLIBSYS_H_INSIDE) && !defined (PLIBSYS_COMPILATION)
+#  error "Header files shouldn't be included directly, consider using <plibsys.h> instead."
+#endif
+
+#ifndef PLIBSYS_HEADER_PSTRING_H
+#define PLIBSYS_HEADER_PSTRING_H
+
+#include <pmacros.h>
+#include <ptypes.h>
+
+P_BEGIN_DECLS
+
+/**
+ * @brief Copies a string.
+ * @param str String with the trailing zero to copy.
+ * @return Copy of the @a str in case of success, NULL otherwise. The caller
+ * takes ownership of the returned string.
+ * @since 0.0.1
+ */
+P_LIB_API pchar *	p_strdup	(const pchar	*str);
+
+/**
+ * @brief Removes trailing and leading whitespaces.
+ * @param str String with the trailing zero to process.
+ * @return Newlly allocated string in case of success, NULL otherwise. The
+ * caller takes ownership of the returned string.
+ * @since 0.0.1
+ */
+P_LIB_API pchar *	p_strchomp	(const pchar	*str);
+
+/**
+ * @brief Tokenizes a string by given delimiters.
+ * @param[in,out] str String to tokenize.
+ * @param delim List of delimiters to split the string.
+ * @param buf Context to store tokenize info.
+ * @return Pointer to a splitted zero-terminated string in case of success, NULL
+ * otherwise.
+ * @since 0.0.1
+ * @note The @a str is modified by this call, so take care for that. The
+ * returned pointer points on a @a str substring, so you do not need to call
+ * p_free() on it.
+ *
+ * The common usage of this call is following:
+ * @code
+ * pchar *token, *buf;
+ * pchar str[] = "This is a test string"
+ * pchar delim[] = " \t"
+ * ...
+ * token = p_strtok (str, delim, &buf);
+ *
+ * while (token != NULL) {
+ *     printf ("Splitted string: %s\n", token);
+ *     token = p_strtok (NULL, delim, &buf);
+ * }
+ * @endcode
+ * Take attention that you need to pass the original string only once, after
+ * that you should pass NULL instead. You can also pass different delimiters
+ * each time.
+ *
+ * Some platforms do not support the third parameter and it can be remained
+ * unused. In that case this call wouldn't be thread-safe.
+ */
+P_LIB_API pchar *	p_strtok	(pchar		*str,
+					 const pchar	*delim,
+					 pchar		**buf);
+
+/**
+ * @brief Converts a string to @a double without a locale dependency.
+ * @param str String to convert.
+ * @return Floating point value in case of success, 0 otherwise.
+ * @since 0.0.1
+ *
+ * Since the atof() system call is locale dependent, you can use this call to
+ * convert string variables to @a double values. The decimal point is '.' as in
+ * the 'C' locale.
+ */
+P_LIB_API double	p_strtod	(const pchar	*str);
+
+P_END_DECLS
+
+#endif /* PLIBSYS_HEADER_PSTRING_H */