/*------------------------------------------------------------------------------
  expansion_data.h - Declaration of an expansion data record

  This holds tokens generated during the expansion of the list of comma-
  separated items in a brace expression.  For example, in the expression
  "{htm{,l},txt,q..bc}" the items are "html{,l}", "txt", and "q..bc".

  The field "part_starts_at" is the index into the expansion list of the first
  token generated by the current list item.  If this item contains a nested
  brace expression, "part_starts_at" indicates where to start appending text 
  generated by the expansion of that expression.

  Version 1.0  2014-12-16  Brian B. McGuinness
------------------------------------------------------------------------------*/
#ifndef expansion_data_h
#define expansion_data_h

#include "string_list.h"

typedef struct expansion_data {
  int          part_starts_at;  // Index in the expansion list where the current list item starts
  string_list *expansions;      // Tokens generated by expansions
} expansion_data;

void delete_expansion_data (expansion_data *record);
expansion_data *new_expansion_data (int start);

#endif // ! expansion_data_h