101 lines
2.3 KiB
Go
101 lines
2.3 KiB
Go
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package foodchain
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import (
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"fmt"
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"strings"
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)
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// TestVersion is an exercism thing
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const TestVersion = 1
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// An Inedible is something that you probably shouldn't eat.
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// At the least, you shouldn't eat it whole/live.
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type Inedible struct {
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// What it is
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Name string
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// A quick jab about it
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FollowUp string
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}
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// DoNotEat is a non-exhaustive list of Inedibles. It's recommended
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// that you don't eat them. Yet the old lady did.
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var DoNotEat = []Inedible{
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Inedible{
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"fly", "I don't know why she swallowed the fly. Perhaps she'll die.",
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},
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Inedible{
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"spider", "It wriggled and jiggled and tickled inside her.",
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},
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Inedible{
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"bird", "How absurd to swallow a bird!",
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},
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Inedible{
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"cat", "Imagine that, to swallow a cat!",
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},
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Inedible{
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"dog", "What a hog, to swallow a dog!",
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},
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Inedible{
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"goat", "Just opened her throat and swallowed a goat!",
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},
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Inedible{
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"cow", "I don't know how she swallowed a cow!",
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},
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Inedible{
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"horse", "She's dead, of course!",
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},
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}
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// Verse generates the text for a specific verse
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func Verse(verseNum int) string {
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return strings.Trim(Swallow(verseNum-1, true), "\n")
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}
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// Verses generates the text for all verses from verse1 to verse2
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func Verses(verse1, verse2 int) string {
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var ret string
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for verse1 <= verse2 {
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ret += Verse(verse1) + "\n\n"
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verse1++
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}
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return strings.Trim(ret, "\n")
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}
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// Song generates all verses
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func Song() string {
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var ret string
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for verseNum := 1; verseNum <= len(DoNotEat); verseNum++ {
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ret += Verse(verseNum) + "\n\n"
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}
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return strings.Trim(ret, "\n")
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}
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// Swallow generates the text for swallowing something
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func Swallow(dneIdx int, first bool) string {
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var ret string
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if first || dneIdx == len(DoNotEat)-1 {
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ret = fmt.Sprintf(
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"I know an old lady who swallowed a %s.\n%s\n",
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DoNotEat[dneIdx].Name,
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DoNotEat[dneIdx].FollowUp,
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)
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if dneIdx == 0 || dneIdx == len(DoNotEat)-1 {
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return ret
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}
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}
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ret += fmt.Sprintf("She swallowed the %s to catch the %s",
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DoNotEat[dneIdx].Name,
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DoNotEat[dneIdx-1].Name,
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)
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if DoNotEat[dneIdx-1].Name == "spider" {
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ret += " that wriggled and jiggled and tickled inside her.\n"
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} else if DoNotEat[dneIdx-1].Name == "fly" {
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ret += ".\nI don't know why she swallowed the fly. Perhaps she'll die.\n"
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return ret
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} else {
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ret += ".\n"
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}
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return ret + Swallow(dneIdx-1, false)
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}
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