#ifndef CELL_H
#define CELL_H

#include "scanner.h"

#ifdef __cplusplus
extern "C" {
#endif

typedef enum
  { BASE_CONT=0, ITER_CONT, ATTR_REF, MAX_PERSIST_TV = ATTR_REF,
    CURR_VAL, RES_VAL,
    CONTINGENT /* Must be last, marks end of many loops */
  } TokVariety;
extern const char *TokVariety_Name[];

typedef enum { LEFT=0, RIGHT=1, CENTER=2, AUTOADJUST=3 } Adjust;
extern const char *Adjust_Name[];
#define MAX_ADJUST_NAME_LENGTH 16
extern const char Adjust_Char[];

typedef enum
  { FLT_DECIMAL=0, FLT_SCIENTIFIC, FLT_COMPACT, FLT_HEXACT }
  FloatFormat;
extern const char *FloatFormat_Name[];
#define MAX_FLOATFORM_NAME_LENGTH 16
extern const char FloatFormat_Char[];

typedef unsigned char ColorNum;
#define MAX_MAX_COLORS UCHAR_MAX;

typedef enum { FOREGROUND = 0, BACKGROUND, NUM_COLOR_ASPECTS } ColorAspect;
extern const char *ColorAspect_Name[];
extern const ColorNum DefaultCN[];

typedef struct
{
  Token tok[CONTINGENT];
  char *label;
  int precision;
  Adjust adjust;
  FloatFormat fform;
  ColorNum aspect[NUM_COLOR_ASPECTS];
  unsigned int updated:1;
  unsigned int shadowed:1;
  unsigned int locked:1;
  unsigned int transparent:1;
  unsigned int ignored:1;
  unsigned int clock_t0:1;
  unsigned int clock_t1:1;
  unsigned int clock_t2:1;
  unsigned int bold:1;
  unsigned int underline:1;
} Cell;

#define NULLCELL ((Cell*)0)

typedef enum {ALTER_LABEL, PRESERVE_LABEL} LabelHandling;

Token gettok(const Cell *cell, TokVariety v);
Adjust getadjust(const Cell *cell);
bool shadowed(const Cell *cell);
bool isbold(const Cell *cell);
bool underlined(const Cell *cell);
ColorNum getcolor(const Cell *cell, ColorAspect aspect);
bool locked(const Cell *cell);
bool transparent(const Cell *cell);
bool ignored(const Cell *cell);
FloatFormat getfltformat(const Cell *cell);
int getprecision(const Cell* cell);
const char *getlabel(const Cell *cell);
void initcellcontents(Cell *cell);
void freecellcontents(Cell *cell);
void copycell(Cell *to, const Cell *from, LabelHandling lh);

typedef enum {DIRECT_STRING, QUOTE_STRING} StringFormat;
typedef enum {TRUNCATED_ERROR, VERBOSE_ERROR, RESTORE_ERROR} ErrorFormat;
size_t printtok(char *dest, size_t size, size_t field_width, StringFormat sf,
		FloatFormat ff, int digits, ErrorFormat ef, const Token *tok);
const char *dbgprint(const Token *tok); /* for use in debugging */
void print(char *s, size_t size, size_t chars, StringFormat sf, FloatFormat ff,
	   int digits, Token **n);
#ifdef __cplusplus
}
#endif

#endif