private.h

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#ifndef MUTT_PATTERN_PRIVATE_H
#define MUTT_PATTERN_PRIVATE_H
 
#include <stdbool.h>
#include "mutt/lib.h"
#include "email/lib.h"
#include "lib.h"
 
struct MailboxView;

enum ExpandoDataPattern
{
  ED_PAT_DESCRIPTION = 1,      
  ED_PAT_EXPRESSION,           
  ED_PAT_NUMBER,               
};

enum PatternEat
{
  EAT_NONE,          
  EAT_DATE,          
  EAT_GROUP,         
  EAT_MESSAGE_RANGE, 
  EAT_QUERY,         
  EAT_RANGE,         
  EAT_REGEX,         
  EAT_STRING,        
};

struct PatternFlags
{
  char prefix;             
  char tag;                
  int op;                  
  PatternCompFlags flags;  
 
  enum PatternEat eat_arg; 
  char *desc;              
};

struct RangeRegex
{
  const char *raw; 
  int lgrp;        
  int rgrp;        
  bool ready;      
  regex_t cooked;  
};

enum RangeType
{
  RANGE_K_REL,  
  RANGE_K_ABS,  
  RANGE_K_LT,   
  RANGE_K_GT,   
  RANGE_K_BARE, 
  /* add new ones HERE */
  RANGE_K_INVALID, 
};

#define RANGE_NUM_RX      "([[:digit:]]+|0x[[:xdigit:]]+)[MmKk]?"
#define RANGE_REL_SLOT_RX "[[:blank:]]*([.^$]|-?" RANGE_NUM_RX ")?[[:blank:]]*"
#define RANGE_REL_RX      "^" RANGE_REL_SLOT_RX "," RANGE_REL_SLOT_RX

#define RANGE_ABS_SLOT_RX "[[:blank:]]*([.^$]|" RANGE_NUM_RX ")?[[:blank:]]*"
#define RANGE_ABS_RX      "^" RANGE_ABS_SLOT_RX "-" RANGE_ABS_SLOT_RX

#define RANGE_LT_RX "^()[[:blank:]]*(<[[:blank:]]*" RANGE_NUM_RX ")[[:blank:]]*"
#define RANGE_GT_RX "^()[[:blank:]]*(>[[:blank:]]*" RANGE_NUM_RX ")[[:blank:]]*"

#define RANGE_BARE_RX "^[[:blank:]]*([.^$]|" RANGE_NUM_RX ")[[:blank:]]*"
#define RANGE_RX_GROUPS 5
 
#define RANGE_DOT     '.'   
#define RANGE_CIRCUM  '^'   
#define RANGE_DOLLAR  '$'   
#define RANGE_LT      '<'   
#define RANGE_GT      '>'   

enum RangeSide
{
  RANGE_S_LEFT,  
  RANGE_S_RIGHT, 
};

static inline int email_msgno(struct Email *e)
{
  return e->msgno + 1;
}
 
#define MUTT_MAXRANGE -1
 
extern struct RangeRegex RangeRegexes[];
extern const struct PatternFlags Flags[];
 
const struct PatternFlags *lookup_op(int op);
const struct PatternFlags *lookup_tag(char prefix, char tag);
bool eval_date_minmax(struct Pattern *pat, const char *s, struct Buffer *err);
bool eat_message_range(struct Pattern *pat, PatternCompFlags flags, struct Buffer *s, struct Buffer *err, struct MailboxView *mv);
 
#endif /* MUTT_PATTERN_PRIVATE_H */