COMMON: Move isFoo functions to namespace Common, add doxygen comments

2 files changed, 3 insertions, 3 deletions

diff --git a/engines/agi/agi.cpp b/engines/agi/agi.cpp
index e1c52c7c5e..e9c9645768 100644
--- a/engines/agi/agi.cpp
+++ b/engines/agi/agi.cpp
@@ -250,7 +250,7 @@ void AgiEngine::processEvents() {
 				// Not a special key, so get the ASCII code for it
 				key = event.kbd.ascii;
 
-				if (isAlpha(key)) {
+				if (Common::isAlpha(key)) {
 					// Key is A-Z.
 					// Map Ctrl-A to 1, Ctrl-B to 2, etc.
 					if (event.kbd.flags & Common::KBD_CTRL) {
diff --git a/engines/agi/wagparser.cpp b/engines/agi/wagparser.cpp
index 00602420e2..61feac5d17 100644
--- a/engines/agi/wagparser.cpp
+++ b/engines/agi/wagparser.cpp
@@ -112,11 +112,11 @@ WagFileParser::~WagFileParser() {
 bool WagFileParser::checkAgiVersionProperty(const WagProperty &version) const {
 	if (version.getCode() == WagProperty::PC_INTVERSION && // Must be AGI interpreter version property
 		version.getSize() >= 3 && // Need at least three characters for a version number like "X.Y"
-		isDigit(version.getData()[0]) && // And the first character must be a digit
+		Common::isDigit(version.getData()[0]) && // And the first character must be a digit
 		(version.getData()[1] == ',' || version.getData()[1] == '.')) { // And the second a comma or a period
 
 		for (int i = 2; i < version.getSize(); i++) // And the rest must all be digits
-			if (!isDigit(version.getData()[i]))
+			if (!Common::isDigit(version.getData()[i]))
 				return false; // Bail out if found a non-digit after the decimal point
 
 		return true;