prawn-bullet-list-all-solutions.rb

require 'prawn'
require 'prawn/table'

def bullet_item string
    indent 15, 0 do
        text "* " + string, :align => :justify
    end
end

def bullet_item_2 string
    if string.length > 110
        sub_str = string[85..string.length-1]
        space_index = sub_str.index(' ')
        str1 = string[0..85+space_index]
        str2 = string[86+space_index..string.length-1]
        indent 10, 0 do
            text "* " + str1, :align => :justify
            indent(9) {text str2, :align => :justify}
        end
    else
        indent 10, 0 do
            text "* " + string, :align => :justify
        end
    end
end

def extractFirstPart(str)
    return str if str.length < 110
    substr = str[85..str.length-1]
    space_index = substr.index(' ')

    if space_index != nil
        return str[0..85+space_index]
    else
        return str
    end
end

def bullet_item_3 string
    counter = 1
    myStr = string.clone
    while myStr.length > 0 do
        str = extractFirstPart myStr
        if counter == 1
            indent 10, 0 do
                text "* " + str, :align => :justify
            end
        else
            indent(19) {text str, :align => :justify}
        end
        myStr.slice! str
        counter += 1
    end
end

def bullet_text_with_borderless_table_old data
    bullet_data = []
    data.each {|d| bullet_data << ["*", d]}
    table bullet_data, {:cell_style => { :borders => [], :align => :justify }, header: true}
end

def bullet_text_with_borderless_table data
    bullet_data = []
    data.each {|d| bullet_data << ["*", d]}
    t = make_table bullet_data, {:cell_style => { :borders => [], :align => :justify, :padding => [0,10,0,0]}, header: true}
    indent(20) {t.draw}
end

Prawn::Document.generate("prawn-bullet-points.pdf") do

    2.times {|i| text " "}
    text "The first solution..."
    bullet_item "This is bullet list line #1 "
    bullet_item "This is bullet list line #2 "

    2.times {|i| text " "}
    text "The first solution with longer lines..."
    bullet_item "This is bullet list line #1 "
    bullet_item "An ecommerce application for online shopping may have several microservices involving order collection, account access, inventory management and shipping."

    2.times {|i| text " "}
    text "The second solution..."
    bullet_item_2 "This is bullet list line #1 "
    bullet_item_2 "An ecommerce application for online shopping may have several microservices involving order collection, account access, inventory management and shipping."

    # https://en.wikipedia.org/wiki/Welding_Procedure_Specification
    welding_procedure_specification = [
        "A Welding Procedure Specification (WPS) is the formal written document describing welding procedures, which provides direction to the welder or welding operators for making sound and quality production welds as per the code requirements.",
        "The purpose of the document is to guide welders to the accepted procedures so that repeatable and trusted welding techniques are used.",
        "A WPS is developed for each material alloy and for each welding type used.",
        "Specific codes and/or engineering societies are often the driving force behind the development of a company's WPS.",
        "A WPS is supported by a Procedure Qualification Record (PQR or WPQR). A PQR is a record of a test weld performed and tested (more rigorously) to ensure that the procedure will produce a good weld.",
        "Individual welders are certified with a qualification test documented in a Welder Qualification Test Record (WQTR) that shows they have the understanding and demonstrated ability to work within the specified WPS."
    ]

    2.times {|i| text " "}
    text "The third solution..."
    welding_procedure_specification.each { |sentence| bullet_item_3 sentence }

    2.times {|i| text " "}
    text "The final solution..."
    bullet_text_with_borderless_table welding_procedure_specification
end