Adding upstream version 3:4.8.30.upstream/3%4.8.30

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 196 insertions, 0 deletions

diff --git a/lib/search.h b/lib/search.h
new file mode 100644
index 0000000..07372c2
--- /dev/null
+++ b/lib/search.h
@@ -0,0 +1,196 @@
+#ifndef MC__SEARCH_H
+#define MC__SEARCH_H
+
+#include <config.h>
+
+#include "lib/global.h"         /* <glib.h> */
+
+#include <sys/types.h>
+
+#ifdef SEARCH_TYPE_PCRE
+#ifdef HAVE_PCRE2
+#define PCRE2_CODE_UNIT_WIDTH 8
+#include <pcre2.h>
+#else
+#include <pcre.h>
+#endif
+#endif /* SEARCH_TYPE_PCRE */
+/*** typedefs(not structures) and defined constants **********************************************/
+
+typedef enum mc_search_cbret_t mc_search_cbret_t;
+
+typedef mc_search_cbret_t (*mc_search_fn) (const void *user_data, gsize char_offset,
+                                           int *current_char);
+typedef mc_search_cbret_t (*mc_update_fn) (const void *user_data, gsize char_offset);
+
+#define MC_SEARCH__NUM_REPLACE_ARGS 64
+
+#ifdef SEARCH_TYPE_GLIB
+#define mc_search_matchinfo_t GMatchInfo
+#else
+#ifdef HAVE_PCRE2
+/* no pcre_extra in PCRE2. pcre2_jit_compile (equivalent of pcre_study) handles
+ * all of this internally. but we can use this to hold the pcre2_matches data
+ * until the search is complete */
+#define mc_search_matchinfo_t pcre2_match_data
+#else
+#define mc_search_matchinfo_t pcre_extra
+#endif
+#endif
+
+/*** enums ***************************************************************************************/
+
+typedef enum
+{
+    MC_SEARCH_E_OK = 0,
+    MC_SEARCH_E_INPUT,
+    MC_SEARCH_E_REGEX_COMPILE,
+    MC_SEARCH_E_REGEX,
+    MC_SEARCH_E_REGEX_REPLACE,
+    MC_SEARCH_E_NOTFOUND,
+    MC_SEARCH_E_ABORT
+} mc_search_error_t;
+
+typedef enum
+{
+    MC_SEARCH_T_INVALID = -1,
+    MC_SEARCH_T_NORMAL,
+    MC_SEARCH_T_REGEX,
+    MC_SEARCH_T_HEX,
+    MC_SEARCH_T_GLOB
+} mc_search_type_t;
+
+enum mc_search_cbret_t
+{
+    MC_SEARCH_CB_OK = 0,
+    MC_SEARCH_CB_INVALID = -1,
+    MC_SEARCH_CB_ABORT = -2,
+    MC_SEARCH_CB_SKIP = -3,
+    MC_SEARCH_CB_NOTFOUND = -4
+};
+
+/*** structures declarations (and typedefs of structures)*****************************************/
+
+typedef struct mc_search_struct
+{
+    /* public input data */
+
+#ifdef HAVE_CHARSET
+    /* search in all charsets */
+    gboolean is_all_charsets;
+#endif
+
+    /* case sensitive search */
+    gboolean is_case_sensitive;
+
+    /* search only once.  Is this for replace? */
+    gboolean is_once_only;
+
+    /* search only whole words (from begin to end). Used only with NORMAL search type */
+    gboolean whole_words;
+
+    /* search entire string (from begin to end). Used only with GLOB search type */
+    gboolean is_entire_line;
+
+    /* function, used for getting data. NULL if not used */
+    mc_search_fn search_fn;
+
+    /* function, used for updatin current search status. NULL if not used */
+    mc_update_fn update_fn;
+
+    /* type of search */
+    mc_search_type_t search_type;
+
+    /* public output data */
+
+    /* some data for normal */
+    off_t normal_offset;
+
+    off_t start_buffer;
+    /* some data for regexp */
+    int num_results;
+    gboolean is_utf8;
+    mc_search_matchinfo_t *regex_match_info;
+    GString *regex_buffer;
+#ifdef SEARCH_TYPE_PCRE
+#ifdef HAVE_PCRE2
+    /* pcre2 will provide a pointer to a match_data structure that can be manipulated like an iovector */
+    size_t *iovector;
+#else
+    int iovector[MC_SEARCH__NUM_REPLACE_ARGS * 2];
+#endif
+#endif                          /* SEARCH_TYPE_PCRE */
+
+    /* private data */
+
+    struct
+    {
+        GPtrArray *conditions;
+        gboolean result;
+    } prepared;
+
+    /* original search string */
+    struct
+    {
+        GString *str;
+#ifdef HAVE_CHARSET
+        gchar *charset;
+#endif
+    } original;
+
+    /* error code after search */
+    mc_search_error_t error;
+    gchar *error_str;
+} mc_search_t;
+
+typedef struct mc_search_type_str_struct
+{
+    const char *str;
+    mc_search_type_t type;
+} mc_search_type_str_t;
+
+/*** global variables defined in .c file *********************************************************/
+
+/* Error messages */
+extern const char *STR_E_NOTFOUND;
+extern const char *STR_E_UNKNOWN_TYPE;
+extern const char *STR_E_RPL_NOT_EQ_TO_FOUND;
+extern const char *STR_E_RPL_INVALID_TOKEN;
+
+/*** declarations of public functions ************************************************************/
+
+mc_search_t *mc_search_new (const gchar * original, const gchar * original_charset);
+
+mc_search_t *mc_search_new_len (const gchar * original, gsize original_len,
+                                const gchar * original_charset);
+
+void mc_search_free (mc_search_t * lc_mc_search);
+
+gboolean mc_search_prepare (mc_search_t * mc_search);
+
+gboolean mc_search_run (mc_search_t * mc_search, const void *user_data, gsize start_search,
+                        gsize end_search, gsize * found_len);
+
+gboolean mc_search_is_type_avail (mc_search_type_t search_type);
+
+const mc_search_type_str_t *mc_search_types_list_get (size_t * num);
+
+GString *mc_search_prepare_replace_str (mc_search_t * mc_search, GString * replace_str);
+char *mc_search_prepare_replace_str2 (mc_search_t * lc_mc_search, const char *replace_str);
+
+gboolean mc_search_is_fixed_search_str (const mc_search_t * lc_mc_search);
+
+gchar **mc_search_get_types_strings_array (size_t * num);
+
+gboolean mc_search (const gchar * pattern, const gchar * pattern_charset, const gchar * str,
+                    mc_search_type_t type);
+
+int mc_search_getstart_result_by_num (mc_search_t * lc_mc_search, int lc_index);
+int mc_search_getend_result_by_num (mc_search_t * lc_mc_search, int lc_index);
+
+/* *INDENT-OFF* */
+void mc_search_set_error (mc_search_t * lc_mc_search, mc_search_error_t code, const gchar * format, ...)
+     G_GNUC_PRINTF (3, 4);
+/* *INDENT-ON* */
+
+#endif /* MC__SEARCH_H */