in java/com/googlecode/prolog_cafe/lang/Token.java [20:44]
public static boolean isSymbol(int c) {
switch (c) {
case '+':
case '-':
case '*':
case '/':
case '\\':
case '^':
case '<':
case '>':
case '=':
case '`':
case '~':
case ':':
case '.':
case '?':
case '@':
case '#':
case '$':
case '&':
return true;
default:
return false;
}
}