added comment functionality for lexer, expanded tests, and updated to identify empty strings

lexicalStructure.lex

@@ -7,8 +7,13 @@
 
 DIGIT [0-9]
 CHAR \\n|\\t|\\'|[^'\n\t\\]
-SCHAR \\n|\\t|\\\"|[^\"\n\\]
-
+	/* char can be a newline, tab, an escaped quote, or anything but a single quote, an actual line break, an actual tab, or a backslash by itself (to prevent confusion from escaped quote */
+SCHAR \\n|\\t|\\\"|[^\"\n\\]  
+	/*similar to above, a string Char (SCHAR) is the same as a CHAR except we cannot have double quotes instead of single quotes. Double quotes need to be escaped in Flex unlike single quotes based on documentation */
+STARTCOM \(\*
+ENDCOM \*\)
+COMMENTCHAR [^\*]|\*[^\)]
+	/*Making the contents of a comment anything that is either not a * or not a * followed by ) to terminate comments at the first ENDCOM */
 %%
 	/* rules */
 {DIGIT}+ {printf( "C_INTEGER: %s (%d)\n", yytext, atoi( yytext ) );}
@@ -21,7 +26,9 @@ SCHAR \\n|\\t|\\\"|[^\"\n\\]
 
 "false" {printf( "C_FALSE: %s (%d)\n", yytext, atoi( yytext ) );}
 
-\"{SCHAR}+\" {printf( "C_STRING: %s (%d)\n", yytext, atoi( yytext ) );}
+\"{SCHAR}*\" {printf( "C_STRING: %s (%d)\n", yytext, atoi( yytext ) );}
+
+{STARTCOM}{COMMENTCHAR}*{ENDCOM} {printf( "COMMENT: %s (%d)\n", yytext, atoi( yytext ) );}
 
 .|\n  
 

simpleLiteralTest.a

@@ -1,9 +1,15 @@
-"this is a string" 721398 'g' '/n' 
-12893 "this is not a string
+"this is a string" 721398 'g' '/n' (* should print 3 tokens before this *)
+'
+' 
+12893 "this is not a string (*one valid token before this*)
+(* spacey comment here     
+over multiple lines
+will it work? *)
 "
 '''
 '\'
 false
+(**)
 '''
 nullfalse
 "nulltrue
@@ -21,6 +27,7 @@ true
 'n'
 '\'
 'fdsf'
+(*/jnewjno2893u86^ 	Lots of random characters /n /t '") *)
 '
 '
 '	'