lib/search.h

   1 #ifndef MC__SEARCH_H
   2 #define MC__SEARCH_H
   3
   4 #include <config.h>
   5
   6 #include "lib/global.h"         /* <glib.h> */
   7
   8 #include <sys/types.h>
   9
  10 #ifdef SEARCH_TYPE_PCRE
  11 #include <pcre.h>
  12 #endif
  13
  14 /*** typedefs(not structures) and defined constants **********************************************/
  15
  16 typedef int (*mc_search_fn) (const void *user_data, gsize char_offset, int *current_char);
  17 typedef int (*mc_update_fn) (const void *user_data, gsize char_offset);
  18
  19 #define MC_SEARCH__NUM_REPLACE_ARGS 64
  20
  21 #ifdef SEARCH_TYPE_GLIB
  22 #define mc_search_matchinfo_t GMatchInfo
  23 #else
  24 #define mc_search_matchinfo_t pcre_extra
  25 #endif
  26
  27 /*** enums ***************************************************************************************/
  28
  29 typedef enum
  30 {
  31     MC_SEARCH_E_OK,
  32     MC_SEARCH_E_INPUT,
  33     MC_SEARCH_E_REGEX_COMPILE,
  34     MC_SEARCH_E_REGEX,
  35     MC_SEARCH_E_REGEX_REPLACE,
  36     MC_SEARCH_E_NOTFOUND
  37 } mc_search_error_t;
  38
  39 typedef enum
  40 {
  41     MC_SEARCH_T_NORMAL,
  42     MC_SEARCH_T_REGEX,
  43     MC_SEARCH_T_HEX,
  44     MC_SEARCH_T_GLOB
  45 } mc_search_type_t;
  46
  47 typedef enum
  48 {
  49     MC_SEARCH_CB_OK = 0,
  50     MC_SEARCH_CB_INVALID = -1,
  51     MC_SEARCH_CB_ABORT = -2,
  52     MC_SEARCH_CB_SKIP = -3
  53 } mc_search_cbret_t;
  54
  55
  56 /*** structures declarations (and typedefs of structures)*****************************************/
  57
  58 typedef struct mc_search_struct
  59 {
  60     /* public input data */
  61
  62     /* search in all charsets */
  63     gboolean is_all_charsets;
  64
  65     /* case sensitive search */
  66     gboolean is_case_sensitive;
  67
  68     /* search only once.  Is this for replace? */
  69     gboolean is_once_only;
  70
  71     /* search only whole words (from begin to end). Used only with NORMAL search type */
  72     gboolean whole_words;
  73
  74     /* search entire string (from begin to end). Used only with GLOB search type */
  75     gboolean is_entire_line;
  76
  77     /* function, used for getting data. NULL if not used */
  78     mc_search_fn search_fn;
  79
  80     /* function, used for updatin current search status. NULL if not used */
  81     mc_update_fn update_fn;
  82
  83     /* type of search */
  84     mc_search_type_t search_type;
  85
  86     /* public output data */
  87
  88     /* some data for normal */
  89     off_t normal_offset;
  90
  91     off_t start_buffer;
  92     /* some data for regexp */
  93     int num_results;
  94     gboolean is_utf8;
  95     mc_search_matchinfo_t *regex_match_info;
  96     GString *regex_buffer;
  97 #ifdef SEARCH_TYPE_PCRE
  98     int iovector[MC_SEARCH__NUM_REPLACE_ARGS * 2];
  99 #endif                          /* SEARCH_TYPE_PCRE */
 100
 101     /* private data */
 102
 103     /* prepared conditions */
 104     GPtrArray *conditions;
 105
 106     /* original search string */
 107     gchar *original;
 108     gsize original_len;
 109
 110     /* error code after search */
 111     mc_search_error_t error;
 112     gchar *error_str;
 113 } mc_search_t;
 114
 115 typedef struct mc_search_type_str_struct
 116 {
 117     const char *str;
 118     mc_search_type_t type;
 119 } mc_search_type_str_t;
 120
 121 /*** global variables defined in .c file *********************************************************/
 122
 123 /*** declarations of public functions ************************************************************/
 124
 125 mc_search_t *mc_search_new (const gchar * original, gsize original_len);
 126
 127 void mc_search_free (mc_search_t * lc_mc_search);
 128
 129 gboolean mc_search_prepare (mc_search_t * mc_search);
 130
 131 gboolean mc_search_run (mc_search_t * mc_search, const void *user_data, gsize start_search,
 132                         gsize end_search, gsize * found_len);
 133
 134 gboolean mc_search_is_type_avail (mc_search_type_t);
 135
 136 const mc_search_type_str_t *mc_search_types_list_get (size_t * num);
 137
 138 GString *mc_search_prepare_replace_str (mc_search_t * mc_search, GString * replace_str);
 139 char *mc_search_prepare_replace_str2 (mc_search_t *, char *);
 140
 141 gboolean mc_search_is_fixed_search_str (mc_search_t *);
 142
 143 gchar **mc_search_get_types_strings_array (size_t * num);
 144
 145 gboolean mc_search (const gchar *, const gchar *, mc_search_type_t);
 146
 147 int mc_search_getstart_result_by_num (mc_search_t *, int);
 148 int mc_search_getend_result_by_num (mc_search_t *, int);
 149
 150 #endif