move TTN_HEX_* to cpp (#107)

Author: FokkeZB

keywords.txt

@@ -12,9 +12,6 @@ TheThingsNetwork        KEYWORD1
 # Methods and Functions (KEYWORD2)
 #######################################
 
-TTN_HEX_CHAR_TO_NIBBLE  KEYWORD2
-TTN_HEX_CHAR_TO_NIBBLE  KEYWORD2
-
 showStatus              KEYWORD2
 onMessage               KEYWORD2
 provision               KEYWORD2

src/TheThingsNetwork.cpp

@@ -7,6 +7,9 @@
 #define debugPrintLn(...) { if (debugStream) debugStream->println(__VA_ARGS__); }
 #define debugPrint(...) { if (debugStream) debugStream->print(__VA_ARGS__); }
 
+#define TTN_HEX_CHAR_TO_NIBBLE(c) ((c >= 'A') ? (c - 'A' + 0x0A) : (c - '0'))
+#define TTN_HEX_PAIR_TO_BYTE(h, l) ((TTN_HEX_CHAR_TO_NIBBLE(h) << 4) + TTN_HEX_CHAR_TO_NIBBLE(l))
+
 String TheThingsNetwork::readLine() {
   while (true) {
     String line = modemStream->readStringUntil('\n');

src/TheThingsNetwork.h

@@ -14,9 +14,6 @@
 #define TTN_PWRIDX_868 1
 #define TTN_PWRIDX_915 5
 
-#define TTN_HEX_CHAR_TO_NIBBLE(c) ((c >= 'A') ? (c - 'A' + 0x0A) : (c - '0'))
-#define TTN_HEX_PAIR_TO_BYTE(h, l) ((TTN_HEX_CHAR_TO_NIBBLE(h) << 4) + TTN_HEX_CHAR_TO_NIBBLE(l))
-
 enum ttn_fp_t {
   TTN_FP_EU868,
   TTN_FP_US915