From 2ad0587242e8cf609804f96c52a665a9fb7a2650 Mon Sep 17 00:00:00 2001
From: Dane Johnson <daneallenjohnson@protonmail.com>
Date: Fri, 17 Dec 2021 16:46:50 -0600
Subject: [PATCH] Choices are also a c++ struct

---
 cyoa.leg | 95 +++++++++++++++++++++++++++++---------------------------
 1 file changed, 50 insertions(+), 45 deletions(-)

diff --git a/cyoa.leg b/cyoa.leg
index ce09e46..e1623fc 100644
--- a/cyoa.leg
+++ b/cyoa.leg
@@ -5,9 +5,35 @@
 #include <cstdlib>
 #include <cassert>
 
-typedef struct statcheck_t statcheck_t;
-typedef struct statchange_t statchange_t;
-typedef struct choice_t choice_t;
+#define STATCHECK_GT 1
+#define STATCHECK_LT 2
+
+struct statcheck_t {
+  char *stat;
+  int value;
+  int rel;
+};
+
+struct statchange_t {
+  char *stat;
+  int addend;
+};
+
+enum ChoiceFlags : int {
+  StatCheck = 0x1,
+  StatChange = 0x2,
+};
+
+struct Choice {
+  int flags;
+  int option;
+  char *flavor;
+  statcheck_t statcheck;
+  char *id;
+  statchange_t statchange;
+
+  Choice(char*, statcheck_t*, statchange_t*);
+};
 
 enum class FooterType {
   End,
@@ -18,7 +44,7 @@ enum class FooterType {
 struct Footer {
   FooterType type;
   union {
-    std::vector<choice_t*> choices;
+    std::vector<Choice*> choices;
     char *link;
   };
 
@@ -35,37 +61,8 @@ struct Page {
   ~Page();
 };
 
-#define STATCHECK_GT 1
-#define STATCHECK_LT 2
-
-struct statcheck_t {
-  char *stat;
-  int value;
-  int rel;
-};
-
-struct statchange_t {
-  char *stat;
-  int addend;
-};
-
-
-#define CHOICE_STATCHECK  0x1
-#define CHOICE_STATCHANGE 0x2
-
-struct choice_t {
-  int flags;
-  int option;
-  char *flavor;
-  statcheck_t statcheck;
-  char *redirect;
-  statchange_t statchange;
-};
-
 std::vector<Page*> pages;
 
-choice_t *make_choice();
-
 Page *emit_ending();
 Page *emit_goto(char*);
 Page *emit_choices();
@@ -75,9 +72,11 @@ void append_body(Page *page, char *str);
 union value {
   Page *page;
   char *string;
-  choice_t *choice;
-  std::vector<choice_t*> *choices;
+  Choice *choice;
+  std::vector<Choice*> *choices;
   int num;
+  statcheck_t *statcheck;
+  statchange_t *statchange;
 };
 
 #define YYSTYPE union value
@@ -111,7 +110,7 @@ Goto =         'GOTO' Spacing < i:Identifier > Newline
 Ending =       'THE END' Newline;
 
 ChoiceList =   c:Choice l:ChoiceList { $$ = l; $$.choices->push_back(c.choice); }
-	       | c:Choice { $$.choices = new std::vector<choice_t*>(); $$.choices->push_back(c.choice); }
+	       | c:Choice { $$.choices = new std::vector<Choice*>(); $$.choices->push_back(c.choice); }
 	       
 Choice =       b:Bullet f:Freetext r:Redirect
        	       {
@@ -124,9 +123,10 @@ Bullet =       < [0-9]+ > ')' Spacing { $$.num = atoi(yytext); };
 
 Freetext =     < (!Redirect .)+ > { $$.string = strndup(yytext, yyleng); };
 
-Redirect =     StatCheck? Spacing '[' Identifier ']' Spacing StatChange? Newline;
+Redirect =     ck:StatCheck? '[' i:Identifier ']' Spacing cg:StatChange? Newline
+	       { $$.choice = new Choice(i.string, ck.statcheck, cg.statchange); }
 
-StatCheck =    '<' StatName Spacing [0-9]+ ('+' | '-')? '>';
+StatCheck =    '<' StatName Spacing [0-9]+ ('+' | '-')? '>' Spacing;
 
 StatChange =   '(' ('+' | '-') [0-9]+ Spacing StatName ')';
 
@@ -142,6 +142,18 @@ Newline =      '\r\n' | '\r' | '\n';
 
 %%
 
+Choice::Choice(char *id, statcheck_t *ck, statchange_t *cg) {
+  this->id = id;
+  if (ck) {
+    statcheck = *ck;
+    flags |= StatCheck;
+  }
+  if (cg) {
+    statchange = *cg;
+    flags |= StatChange;
+  }
+}
+
 Footer::Footer() {
 }
 
@@ -162,13 +174,6 @@ Page::~Page() {
   }
 }
 
-inline choice_t *make_choice() {
-  choice_t *mychoice = (choice_t*) malloc(sizeof(choice_t));
-  mychoice->flags = 0x0;
-  printf("choice 0x%x\n", mychoice);
-  return mychoice;
-}
-
 Page *emit_goto(char *id) {
   Page *mypage = new Page;
   mypage->footer.type = FooterType::Goto;