func docToBlocks()

in internal/godoc/dochtml/internal/render/render.go [246:290]

• 41 lines of code
• 21 McCabe index (conditional complexity)

func docToBlocks(doc string) []block {
	docLines := unindent(strings.Split(strings.Trim(doc, "\n"), "\n"))

	// Group the lines based on indentation and blank lines.
	var groups [][]string
	var lastGroup []string
	var wasInCode bool
	for _, line := range docLines {
		hasIndent := indentLength(line) > 0
		nowInCode := hasIndent || (wasInCode && line == "")
		newGroup := wasInCode != nowInCode || (!nowInCode && line == "")
		wasInCode = nowInCode
		if newGroup && len(lastGroup) > 0 {
			groups = append(groups, lastGroup)
			lastGroup = nil
		}
		if line != "" || nowInCode {
			lastGroup = append(lastGroup, line)
		}
	}
	if len(lastGroup) > 0 {
		groups = append(groups, lastGroup)
	}

	// Classify groups of lines as individual blocks.
	var blks []block
	var lastBlk block
	for i, group := range groups {
		willParagraph := i+1 < len(groups) && indentLength(groups[i+1][0]) == 0
		for len(group) > 0 && group[len(group)-1] == "" {
			group = group[:len(group)-1] // remove trailing empty lines
		}
		_, wasHeading := lastBlk.(*heading)
		switch {
		case indentLength(group[0]) > 0:
			blks = append(blks, &preformat{unindent(group)})
		case i != 0 && !wasHeading && len(group) == 1 && isHeading(group[0]) && willParagraph:
			blks = append(blks, &heading{group[0]})
		default:
			blks = append(blks, &paragraph{group})
		}
		lastBlk = blks[len(blks)-1]
	}
	return blks
}