Function dmntk_recognizer::scan

pub fn scan(text: &str) -> Result<Canvas>

Prepares a canvas containing the textual definition of decision table. This function traverse the input text line-by-line and adds non empty lines of text to the canvas. Adding lines to canvas begins with the line starting with the ┌ character (U+250C BOX DRAWINGS LIGHT DOWN AND RIGHT), because this is the top left corner of every decision table definition. Adding lines to canvas ends with the line ending with the ┘ character (U+2518 BOX DRAWINGS LIGHT UP AND LEFT), because this is the bottom right corner of every decision table definition. Shorter lines are filled up with additional characters to form a rectangular area.