List of parsing functions

Discover the full list of functions supported by Custom Parser: regex, XPath, CSS, and more.

You can find usage examples of each function in the Parsing function examples page.

HTML processing

element_text

• Name: element_text

• Description: Extracts text from html. Strips leading and trailing whitespaces.

• Args: n/a

• Valid input types: html

• Expected output types: str

xpath

• Name: xpath

• Description: Executes an XPath expression on the given input value. If the execution fails to produce a result, the following expression in the array is used. XSLT functions can be used in expressions. XPath version 1.0 is supported. XSLT version 1.0 is supported.

• Args:

  • xpath_expressions

    • Type: [str]

    • Required: true

• Valid input types:

  • html

• Expected output types:

  • [str]

  • [html]

  • str

  • float

  • bool

xpath_one

• Name: xpath_one

• Description: Works the same way as xpath, but returns only the first value even if more than one value is selected by the provided XPath.

• Args:

  • xpath_expressions

    • Type: [str]

    • Required: true

• Valid input types:

  • html

• Expected output types:

  • str

  • html

  • str

  • float

  • bool

css

• Name: css

• Description: Executes an CSS expression on the given input value. If the execution fails to produce a result, the following expression in the array is used. Please note that the output of the css function always is a JSON array containing HTML elements (including the opening and closing tags). If you're interested in extracting the content of the element, you may execute the element_text function afterwards.

• Args:

  • css_expressions

    • Type: [str]

    • Required: true

• Valid input types:

  • html

• Expected output types:

  • [html_element]

css_one

• Name: css_one

• Description: Works the same way as css, but returns only the first value even if more than one value is selected by the provided CSS expression. Please note that the output of the css_one function always is an HTML element (including the opening and closing tags). If you're interested in extracting the content of the element, you may execute the element_text function afterwards.

• Args:

  • css_expressions

    • Type: [str]

    • Required: true

• Valid input types:

  • html

• Expected output types:

  • html_element

String manipulation

amount_from_string

• Name: amount_from_string

• Description: Find the first occurrence of a numeric value in a string and convert it to a float.

• Args: n/a

• Valid input types:

  • str

• Expected output types:

  • float

amount_range_from_string

• Name: amount_range_from_string

• Description: Finds all occurrences of numeric values in a string and converts them to floats.

• Args: n/a

• Valid input types:

  • str

• Expected output types:

  • [float]

join

• Name: join

• Description: Joins a list of strings into a single string. Joined values are separated by the separator value.

• Args:

  • separator

    • Type: str

    • Required: false

    • Default: ""

• Valid input types:

  • [str]

• Expected output types:

  • str

regex_find_all

• Name: regex_find_all

• Description: Finds all strings that match a given RegEx expression.

• Args:

  • regex_pattern

    • Type: str

    • Required: true

• Valid input types:

  • str

• Expected output types:

  • [str]

regex_search

• Name: regex_search

• Description: Finds a string that matches the given RegEx expression. Returns the specified matching group (defaults to 0).

• Args:

  • regex_pattern

    • Type: str

    • Required: true

  • group_to_return

    • Type: int

    • Required: false

    • Default: 0

• Valid input types:

  • str

• Expected output types:

  • str

regex_substring

• Name: regex_substring

• Description: Finds a string that matches the given RegEx expression. Returns the specified matching group (defaults to 0).

• Args:

  • regex_pattern

    • Type: str

    • Required: true

  • group_to_return

    • Type: int

    • Required: false

    • Default: 0

• Valid input types:

  • str

• Expected output types:

  • str

Common

length

• Name: length

• Description: Gets the length of the array. If a multi-dimensional array is provided as input, the function will work on the innermost array.

• Args: n/a

• Valid input types:

  • [OneDimensionalArray]

• Expected output types:

  • int

select_nth

• Name: select_nth

• Description: Returns the nth array element. Zero-based indexing is used. Supports negative indexes to select last (-1), second last (-2), … item from an array.

• Args:

  • index

    • Type: int

    • Required: true

• Valid input types:

  • [AnyType]

• Expected output types:

  • AnyType

convert_to_float

• Name: convert_to_float

• Description: Converts a string or an int to a float.

• Args: n/a

• Valid input types:

  • str

  • int

• Expected output types:

  • float

convert_to_int

• Name: convert_to_int

• Description: Converts a string or a float to an int.

• Args: n/a

• Valid input types:

  • str

  • float

• Expected output types:

  • int

convert_to_str

• Name: convert_to_str

• Description: Converts an int or a float to a string.

• Args: n/a

• Valid input types:

  • int

  • float

• Expected output types:

  • string

Math

average

• Name: average

• Description: Calculates the average of values in an array.

• Args:

  • round_precision

    • Type: int

    • Required: false

• Valid input types:

  • [int]

  • [float]

• Expected output types:

  • float

max

• Name: max

• Description: Finds the greatest value in an array.

• Args: n/a

• Valid input types:

  • [float]

  • [int]

• Expected output types:

  • float

  • int

min

• Name: min

• Description: Finds the smallest value in an array.

• Args: n/a

• Valid input types:

  • [float]

  • [int]

• Expected output types:

  • float

  • int

product

• Name: product

• Description: Returns the multiplication product of all array values.

• Args: n/a

• Valid input types:

  • [float]

  • [int]

• Expected output types:

  • float

  • int