// used below to remove extra newlines in TOC lists

const endLine = '</a>\r?\n'

const blankLine = '\\s*?[\r\n]*'

const startNextLine = '[^\\S\r\n]*?[-\\*] <a'

const blankLineInList = new RegExp(`(${endLine})${blankLine}(${startNextLine})`, 'mg')

export function processLiquidPost(template) {

template = cleanUpListEmptyLines(template)

template = cleanUpExtraEmptyLines(template)

return template

}

function cleanUpListEmptyLines(template) {

// clean up empty lines in TOC lists left by unrendered list items (due to productVersions)

// for example, remove the blank line here:

// - <a>foo</a>

//

// - <a>bar</a>

if (template.includes('</a>')) {

template = template.replace(blankLineInList, '$1$2')

}

return template

}

function cleanUpExtraEmptyLines(template) {

// this removes any extra newlines left by (now resolved) liquid

// statements so that extra space doesn't mess with list numbering

template = template.replace(/(\r?\n){3}/g, '\n\n')

return template

}