private.h

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#ifndef MUTT_PATTERN_PRIVATE_H
#define MUTT_PATTERN_PRIVATE_H
 
#include <stdbool.h>
#include "mutt/lib.h"
#include "lib.h"
 
struct PatternEntry
{
  int num;          
  const char *tag;  
  const char *expr; 
  const char *desc; 
};
 
enum PatternEat
{
  EAT_NONE,          
  EAT_REGEX,         
  EAT_DATE,          
  EAT_RANGE,         
  EAT_MESSAGE_RANGE, 
  EAT_QUERY,         
};
 
struct PatternFlags
{
  int 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, 
};
 
/* The regexes in a modern format */
#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
 
/* Almost the same, but no negative numbers allowed */
#define RANGE_ABS_SLOT_RX "[[:blank:]]*([.^$]|" RANGE_NUM_RX ")?[[:blank:]]*"
#define RANGE_ABS_RX      "^" RANGE_ABS_SLOT_RX "-" RANGE_ABS_SLOT_RX
 
/* First group is intentionally empty */
#define RANGE_LT_RX "^()[[:blank:]]*(<[[:blank:]]*" RANGE_NUM_RX ")[[:blank:]]*"
#define RANGE_GT_RX "^()[[:blank:]]*(>[[:blank:]]*" RANGE_NUM_RX ")[[:blank:]]*"
 
/* Single group for min and max */
#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, 
};
 
#define EMSG(e) (((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 tag);
bool eval_date_minmax(struct Pattern *pat, const char *s, struct Buffer *err);
 
#endif /* MUTT_PATTERN_PRIVATE_H */