Started to Implement the Parser

2014-09-06 01:54:15 +02:00
parent 6aafbf9d2e
commit 8df8317413
10 changed files with 570 additions and 16 deletions
--- a/MathPad/MPMath.lm
+++ b/MathPad/MPMath.lm
@@ -0,0 +1,16 @@
+%option noyywrap
+%{
+    @import Foundation;
+    #include "MPMath.tab.h"
+%}
+%%
+    /* Ignore Whitespaces */
+[ \t\n]         ;
+    /* Operators. Divisions are automatically transformed into fractions and dealt
+   with elsewhere. */
+\+   { return PLUS; }
+-    { return MINUS; }
+\*   { return DOT; }
+    /* Numbers */
+[0-9]+(\.[0-9]+)?  { yylval.number = atof(yytext); return NUMBER; }
+%%