textfield-parser 0.0.11

Parsing Textfields

textfield_parser

Getting a string from a textfield and returns the parsed content.

read_list

Reads a comma separated list and returns either the items or the remainder of the additional list when a text contains the modifier 'Not'.

def read_list(text,value_list=None,sep = ',', modifier_list = None)`

Arguments

• text -string- from textfield that will be parsed
• value_list -list- list from which the parsed text elements will be removed when there is a modifier 'NOT'.
• sep -char- element separator in string
• modifier_list -list- List of modifier for excluding the listed items from value_list Default: ['!', '~', 'not', 'Not', 'NOT']

Return

• List of parsed parameters

Examples

**Simple list: **

• text = "'Hello', 'a list', separated by , me "

-> ['Hello', 'a list', 'separated by', 'me']

Not list

• text = "Not Mercedes, Renault, Citroen, Peugeaut, 'Rolls Royce'"
• value_list = ['Mercedes', 'Audi', 'VW', 'Skoda', 'Renault', 'Citroen', 'Peugeot', 'Rolls Royce']

-> ['Audi', 'VW', 'Skoda', 'Peugeot']

read_value_lists

Reads a 'outer_sep'-separated list of a mapping with 'inner-sep' separated list and returns a dictionary with the map as key and a list as value.

def read_value_lists(text,value_list=None,inner_sep = ',',outer_sep = ';',map_sep=':')`

Arguments

• text -string- from textfield that will be parsed
• inner_sep -char- element separator of value list
• outer_sep -char- list separator for the lists
• map_sep -char- separates map from list

Return

• Dictionary of the keys and lists.

Example

text = "'Mercedes':expensive, German, respectable; Audi:'sportive, German, technology-advanced';
VW : 'people', 'solid', No1; Citroen:cool, Fantomas, CV2, elastic ; 'Rolls Rocye': royal,
British, 'very expensive', black" -> {'Mercedes': ['expensive', 'German', 'respectable'], 'Audi': ['sportive', 'German', 'technology-advanced'], 'VW': ['people', 'solid', 'No1'], 'Citroen': ['cool', 'Fantomas', 'CV2', 'elastic'], 'Rolls Rocye': ['royal', 'British', 'very expensive', 'black']} Map :{'Mercedes': 'expensive', 'Audi': 'sportive', 'VW': 'people', 'Citroen': 'cool', 'Rolls Rocye': 'royal'}

read_map

Reads a comma separated list of mappings and returns a dictionary.

def read_map(text, sep=',')

Arguments

• text -string- from textfield that will be parsed
• sep -char- element separator in string

Return

• dictionary of parsed parameters

Example

text = "'Mercedes':expensive, Audi:'sportiv', VW : 'people', Citroen:cool, 'Rolls Rocye': royal"

-> {'Mercedes': 'expensive', 'Audi': 'sportiv', 'VW': 'people', 'Citroen': 'cool', 'Rolls Rocye': 'royal'}`

read_json

Reads a json formatted string and return a dictionary

Arguments

• text -string- json-string

Return

• dictionary of json

Example

json_text = "{"Luxury Class": {"Mercedes":"expensive","Rolls Rocye": "royal"}, "High Middle Class":{"Audi":"sportiv"}, "Middle Class" : {"Citroen":"cool","VW" : "people" }}"

-> `{'Luxury Class': {'Mercedes': 'expensive', 'Rolls Rocye': 'royal'}, 'High Middle Class': {'Audi': 'sportiv'}, 'Middle Class': {'Citroen': 'cool', 'VW': 'people'}}

read_comparisons

Parses a list of comparisons and returns a list of lists with 3 items: (left, comparison-operator, right). There is an internal mapping of comparison characters: {'!=':'!','==':'=','>=':'≥','=>':'≥','<=':'≤','=<':'≤'}

def read_comparisons(text,sep = ',',formula_map = None)

Arguments

• text -string- Textfield string
• sep -char- element separator in string
• modifier_map -dictionary- mapping of comparison strings to 1-char comparison. Default: {'!=': '!', '==': '=', '>=': '≥', '=>': '≥', '<=': '≤', '=<': '≤'} `

Return

• List of 3 element lists

Examples

' anna > 1.70, norbert != 900, cindy <= 1.65'

-> [['anna', '>', 1.7], ['norbert', '!', 900.0], ['cindy', '≤', 1.65]]`