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# Parameter Functions

Click one of the following functions for more information:

lr_advance_param | Advances to the next available value in the parameter data file.
lr_checkpoint | Validates the value of a parameter against an expected value (checkpoint).
lr_convert_double_to_double | Formats the string representation of a double value using a printf-style format specifier.
lr_convert_double_to_integer | Converts the string representation of a double value to the string representation of an integer.
lr_convert_string_encoding | Converts a string to a different encoding.
lr_decrypt | Deprecated. Unmasks a masked string. Use lr_unmask instead.
lr_eval_json | Creates a JSON object from a string or a file.
lr_eval_string | Returns the string argument after evaluating embedded parameters.
lr_eval_string_ext | Creates a buffer and assigns it the input string after evaluating embedded parameters.
lr_eval_string_ext_free | Frees the buffer allocated by lr_eval_string_ext.
lr_free_parameter | Deletes a dynamic parameter at runtime and frees its buffer.
lr_json_delete | Deletes the values in a JSON object that match the query.
lr_json_find | Returns the number of matches to a query in a JSON object.
lr_json_get_values | Gets values from a given path in a JSON object.
lr_json_insert | Inserts a node in a JSON object.
lr_json_replace | Replaces a node in a JSON object.
lr_json_set_values | Changes values in a JSON object.
lr_json_stringify | Converts a JSON object to a JSON string.
lr_next_row | Advances to the next row in the parameter data file.
lr_param_increment | Increments the value of a parameter.
lr_param_sprintf | Writes formatted output to a parameter.
lr_param_unique | Generates a unique string and assigns it to a parameter.
lr_paramarr_idx | Returns the value of the parameter at a specified location in a parameter array.
lr_paramarr_len | Returns the number of elements in a parameter array.
lr_paramarr_random | Returns the value of the parameter at a random location in a parameter array
lr_read_file | Reads a file into a parameter.
lr_save_datetime | Saves the date and time into a parameter.
lr_save_param_regexp | Finds a string in a buffer using a regular expression and saves capture group matches to a parameter.
lr_save_int | Saves an integer to a parameter.
lr_save_searched_string | Searches for an occurrence of a string in a buffer and saves a portion of the buffer after that string to a parameter.
lr_save_string | Saves a null terminated string as a parameter.
lr_save_timestamp | Saves the current time in a parameter.
lr_save_var | Saves a variable length string as a parameter.
lr_unmask |
lr_unzip | Uncompresses the information in a parameter and stores the uncompressed information in another parameter.
lr_zip | Compresses the information in a parameter and stores the compressed information in another parameter.

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