get_regex

get_regex(filename, patterns, encoding='utf-8')

Get values from a file using regex.

Parameters

filenamestr

The name of the file to parse

patternslist of str

Regex patterns that will permit to get the values see https://docs.python.org/2/library/re.html for available patterns The value to be searched must be surrounded by parenthesis.

encodingstr

File encoding see http://docs.python.org/2/library/codecs.html#codec-base-classes

Returns

resultslist of float

Each value corresponds to each pattern. If nothing has been found, the corresponding value is set to None.

Raises

AssertionError

parameters badly set

EOFError

no value found

Examples

>>> import openturns.coupling_tools as ct
>>> # write an output file
>>> with open('results.out', 'w') as f:
...     count = f.write('@E=-9.5E3')
>>> # parse file with regex
>>> ct.get_regex('results.out', patterns=[r'@E=(\R)'])
[-9500.0]