Data parser block constructor — new_parser

new_parser_block: this block allows to create any data parsing block. Unless you need a new data parser, there is no need to use this directly.

csv_block: From a string given by new_filesbrowser_block and new_upload_block, reads the related CSV file and returns a dataframe.

rds_block: From a string given by new_filesbrowser_block and new_upload_block, reads the related rds file and returns a dataframe.

json_block: From a string given by new_filesbrowser_block and new_upload_block, reads the related json file and returns a dataframe.

csv_block: From a string given by new_filesbrowser_block and new_upload_block, reads the related XPT file and returns a dataframe.

Usage

new_parser_block(expr, fields = list(), ..., class = character())

new_csv_block(...)

new_rds_block(...)

new_json_block(...)

new_xpt_block(...)

expr: A quoted expression (compatible with partial substitution as implemented in base::bquote() and intended for evaluation in the context of the fields)
fields: A list of field, each entry inheriting from "field"
...: Further (metadata) attributes
class: Block subclass