backporting uart_i and cli

[avr-crypto-lib.git] / test_src / string-extras.h

diff --git a/test_src/string-extras.h b/test_src/string-extras.h
new file mode 100644 (file)
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--- /dev/null
+++ b/test_src/string-extras.h
@@ -0,0 +1,55 @@
+/* string-extras.h */
+/*
+    This file is part of the AVR-Crypto-Lib.
+    Copyright (C) 2008  Daniel Otte (daniel.otte@rub.de)
+
+    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 3 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, see <http://www.gnu.org/licenses/>.
+*/
+/**
+ * \file       string-extras.h
+ * \author  Daniel Otte 
+ * \date    2006-05-16
+ * \license    GPLv3 or later
+ * 
+ */
+
+/** \fn stridentcnt_P(char* a, PGM_P b)
+ * \brief counts the number of identic chars
+ * 
+ * This function compares the supplyed strings and returns the index of the 
+ * first char where the strings differ.
+ * \param a pointer to string in RAM
+ * \param b pointer to string in Flash
+ * \return index of the first char where \c a and \c b differ
+ */
+uint16_t stridentcnt_P(char* a, PGM_P b);
+
+/** \fn firstword_length(char* s)
+ * \brief compute the length of the first word in supllyed string
+ * 
+ * This function searches for the first whitespace in the string and returns the
+ * number of chars before the first whitespace.
+ * \param s string
+ * \return number of chars in first word
+ */
+uint16_t firstword_length(char* s);
+
+/** \fn strstrip(char* str)
+ * \brief removes whitespace at the beginning and the end of a string
+ * 
+ * This function removes whitespaces at the end of a string.
+ * \param str sting
+ * \return pointer to the first non-whitespace char in string
+ */
+char* strstrip(char* str);