[IPL/HW02] Copied work from HW01, added a help message to lexer.sh, added left margin to pre tag

1 files changed, 56 insertions, 0 deletions

diff --git a/Year 2/Implementation of Programming Languages/Homework 02/commonlisp2html.l b/Year 2/Implementation of Programming Languages/Homework 02/commonlisp2html.l
new file mode 100644
index 0000000..46447b1
--- /dev/null
+++ b/Year 2/Implementation of Programming Languages/Homework 02/commonlisp2html.l
@@ -0,0 +1,56 @@
+%{
+
+%}
+
+DIGIT [0-9]
+BRACKET \(|\)
+
+STR   \"([^\"]|\\\")*([^\\]|\\\\)\"
+NUMBERS [^A-z](\+|-)?{DIGIT}+(\.{DIGIT}+(e{DIGIT}+|d{DIGIT}+|e-{DIGIT}+)?|\/{DIGIT}+)?
+
+COMMENT ;.*$
+PARAMETER_TYPE &[0-9A-z]+
+KEYWORD :[0-9A-z]+
+CONSTANTS T|NIL|pi|t
+
+SPECIAL_FORM block|function|if|let|quote|return-from|defun|demacro
+
+/* Functions */
+F_ARITHMETIC "+ "|"- "|"* "|\/|1\+|1-|conjugate|gcd|lcm
+F_NUM_COMPARISON =|\/=|<|>|<=|>=|max|min
+F_TRIGONOMETRIC sin|cos|tan|cis|asin|acos|atan|sinh|cosh|tanh|asinh|acosh|atanh
+F_OTHER_MATH abs|sqrt|phase|signum
+F_LOGICAL not
+F_LISTS list
+F_OTHER format
+
+/* Macros */
+M_ARITHMETIC incf|decf
+M_LOGICAL and|or
+M_CONDITIONAL when|unless|cond|case|typecase
+M_DECLARE defvar|defparameter|defconstant|defun
+
+/* Not in spec, but commonly followed */
+GLOBAL_VAR \*([0-9A-z.?-_])+\*
+CONST_VAR \+([0-9A-z.?-_])+\+
+
+%%
+
+{BRACKET} { printf("<span class=\"bracket\">%s</span>", yytext); }
+{STR} { printf("<span class=\"string\">%s</span>", yytext); }
+{NUMBERS} { printf("<span class=\"number\">%s</span>", yytext); }
+{COMMENT} { printf("<span class=\"comment\">%s</span>", yytext); }
+{PARAMETER_TYPE} { printf("<span class=\"parameter-type\">%s</span>", yytext); }
+{KEYWORD} { printf("<span class=\"keyword\">%s</span>", yytext); }
+{CONSTANTS} { printf("<span class=\"constant\">%s</span>", yytext); }
+
+{SPECIAL_FORM} { printf("<span class=\"special-operator\">%s</span>", yytext); }
+{F_ARITHMETIC}|{F_NUM_COMPARISON}|{F_TRIGONOMETRIC}|{F_TRIGONOMETRIC}|{F_OTHER_MATH}|{F_LOGICAL}|{F_LISTS}|{F_OTHER} { printf("<span class=\"function\">%s</span>", yytext); }
+{M_ARITHMETIC}|{M_LOGICAL}|{M_CONDITIONAL}|{M_DECLARE} { printf("<span class=\"macro\">%s</span>", yytext); }
+
+{GLOBAL_VAR}|{CONST_VAR} { printf("<span class=\"variable\">%s</span>", yytext); }
+
+	/* flex catches the longest possibility, so if some variable name contains a known word (function, macro, etc.), this will prevent it from highlighting */
+[A-z]+ { printf("%s", yytext); }
+
+%%