grapa.parse.parser_dispatcher.FileParserDispatcher

class grapa.parse.parser_dispatcher.FileParserDispatcher

Bases: object

By default, 3 different reading modes are possible: 1. directly from data (filename=[[0,1,2,3],[5,2,7,4]])

2. column-organized datafile, with data starting at first row with a number in the first field

3. database, with no number in the first column

File opening strategy:

1/ readDataFile

• do some stuff with complementary input

• read first 3 lines of the file (file_read_first3lines)

• check if any of Graph child class can handle the file

• if not, calls readDataFromFileTxt

2/ readDataFromFileTxt

• look if file has a number in the first column

  (_which_default_parse_method). If so, call readDataFromFileGeneric, else call readDataFromFileDatabase.

__init__()

Methods

append_curve_from_datainput(graph, data, ...)	Initializes content of object using data given in constructor.
read(graph[, complement])	Reads a file, opens graph.filename graph: a graph object Complement: ...
readDataFromFileDatabase(graph, attributes)	fileContent: list of lists containing file content (imagine csv file) kwargs: useless here
readDataFromFileGeneric(graph, attributes[, ...])	Reads the file as a column-organized data file, with some headers lines at the beginning.
readDataFromFileTxt(graph, attributes[, ...])	Reads content of a .txt file, and parse it as a database or as a generic file.

classmethod readDataFromFileDatabase(graph: Graph, attributes, fileContent=None, **kwargs)

fileContent: list of lists containing file content (imagine csv file) kwargs: useless here

classmethod readDataFromFileGeneric(graph, attributes, fileContent=None, ifReplaceCommaByPoint=False, **kwargs)

Reads the file as a column-organized data file, with some headers lines at the beginning.

Parameters:

• graph – the graph to put the data in

• attributes –

  provided when intantiating the Graph object. Special keyword:

  • _singlecurve: parse all data into a single Curve object

• fileContent – if content to parse is given as a string, not from file read

• ifReplaceCommaByPoint – if numbers are formatted with ‘,’ instead of ‘.’

• kwargs –

  the following keywords are handled:

  • delimiter: if provided, assumed the values is the text delimiter.

  • delimiterHeaders: same as delimiter, but only for the headers section

  • lstrip: a lstrip function is applied to each line when parsing the file. Values: True, or ‘# ‘ or similar

classmethod readDataFromFileTxt(graph: Graph, attributes, isfilecontent=False) → bool

Reads content of a .txt file, and parse it as a database or as a generic file.