DOKK / manpages / debian 13 / libbson-doc / bson_append_regex_w_len.3.en
BSON_APPEND_REGEX_W_LEN(3) libbson BSON_APPEND_REGEX_W_LEN(3) 

bool
bson_append_regex_w_len (bson_t *bson,


                          const char *key,


                          int key_length,


                          const char *regex,


                          int regex_length,


                          const char *options);


  • bson: A bson_t.
  • key: An ASCII C string containing the name of the field.
  • key_length: The length of key in bytes, or -1 to determine the length with strlen().
  • regex: An ASCII string containing the regex.
  • regex_length: The length of regex in bytes, or -1 to determine the length with strlen().
  • options: An optional string containing the regex options as a string.

Appends a new field to bson of type BSON_TYPE_REGEX. regex should be the regex string. options should contain the options for the regex.

Valid characters for options include:

  • 'i' for case-insensitive.
  • 'm' for multiple matching.
  • 'x' for verbose mode.
  • 'l' to make w and W locale dependent.
  • 's' for dotall mode ('.' matches everything)
  • 'u' to make w and W match unicode.

Returns true if the operation was applied successfully. The function will fail if appending the regex grows bson larger than INT32_MAX.

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May 7, 2025 1.30.4