character identifier seems to work. Still working on strings. Updated tests to include more. Task01

lexicalStructure.lex

@@ -1,4 +1,3 @@
-	/* Lexical Analysis with Flex (2.6.0) We used some of the code from this manual */
 	/*                                    so we placed the citation here. */
 	/* definitions */
 %option noyywrap
@@ -7,19 +6,21 @@
 %}
 
 DIGIT [0-9]
+CHAR \\\\n|\\\\t|\\\'|[^'\\\n\t]
+STRINGVAL CHAR | " "
 %%
 	/* rules */
 {DIGIT}+ {printf( "C_INTEGER: %s (%d)\n", yytext, atoi( yytext ) );}
 
 "null" {printf( "C_NULL: %s (%d)\n", yytext, atoi( yytext ) );}
 
-\'.\'|\'\\[nt]\' {printf( "C_CHARACTER: %s (%d)\n", yytext, atoi( yytext ) );} /*using double \ per documentation to show escaped chars*/
+'{CHAR}' {printf( "C_CHARACTER: %s (%d)\n", yytext, atoi( yytext ) );} /*using double \ per documentation to show escaped chars*/
 
 "true" {printf( "C_TRUE: %s (%d)\n", yytext, atoi( yytext ) );}
 
 "false" {printf( "C_FALSE: %s (%d)\n", yytext, atoi( yytext ) );}
 
-"\""[\^{}}\n]*"\"" {printf( "C_STRING: %s (%d)\n", yytext, atoi( yytext ) );}
+"{STRINGVAL}+" {printf( "C_STRING: %s (%d)\n", yytext, atoi( yytext ) );}
 
 .|\n  
 

simpleLiteralTest.a

@@ -1,16 +1,24 @@
 "this is a string" 721398 'g' '/n' 
 12893 "this is not a string
 "
+'''
+'\'
 false
+'''
 nullfalse
 "nulltrue
 null
 '7'
 true
 '189
-'/n'
-'/t'
+'\t'
 '"'
 '/'
+'\n'
+'\''
+'\t'
+'\\'
 
+'\'
 
+'''