turn clr into lalr and first steps for generating a parser

1 files changed, 9 insertions, 9 deletions

diff --git a/util-tables.c b/util-tables.c
index 83a015c..09df914 100644
--- a/util-tables.c
+++ b/util-tables.c
@@ -27,20 +27,20 @@ void util_tables_fill()
         follow[i] = xcalloc(total_symbols, sizeof(*follow[i]));
         first[i] = xcalloc(total_symbols, sizeof(*follow[i]));
     }
-    
+
     for(size_t sym = 0; sym < total_symbols; sym++) {
         first[sym][sym] = 1;
     }
-        
+
     for(size_t i = 0; i < total_productions; i++) {
         struct production *p = &grammar[i];
-        
+
         first[p->LHS][p->RHS[0]] = 1;
-        
+
         for(size_t j = 1; j < p->nRHS; j++)
             follow[p->RHS[j-1]][p->RHS[j]] = 1;
     }
-    
+
 #define set(e) if((e) != 1) changed = (e) = 1
 
     int changed;
@@ -66,7 +66,7 @@ void util_tables_free()
         free(follow[i]);
         free(first[i]);
     }
-    
+
     free(follow);
     free(first);
 }
@@ -75,7 +75,7 @@ void util_tables_print()
 {
     char *s1 = "-- FIRST --";
     printf("    %*s%s\n", (int)((total_symbols*3) - strlen(s1))/2, "", s1);
-    
+
     printf("    ");
     for(size_t i = 0; i < total_symbols; i++) printf("%2zu ", i);
     printf("\n");
@@ -88,7 +88,7 @@ void util_tables_print()
     }
 
     printf("\n");
-    
+
     char *s2 = "-- FOLLOW --";
     printf("    %*s%s\n", (int)((total_symbols*3) - strlen(s2))/2, "", s2);
 
@@ -119,7 +119,7 @@ enum symbol {
     SYMBOLS_END,
 };
 
-const size_t total_symbols = SYMBOLS_END;
+size_t total_symbols = SYMBOLS_END;
 
 int symbol_is_terminal(symbol s)    { return s < E; }
 int symbol_is_nonterminal(symbol s) { return s >= E; }