bson_append_regex_w_len - Man Page

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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