/
parser.go
208 lines (191 loc) · 4.16 KB
/
parser.go
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package hamquestions
import (
"regexp"
"strconv"
"strings"
"github.com/jkl73/arrl-ham-questions-pool-proto/proto"
)
const generalFigG7_1 = "2019-2023_general-G7-1"
const techFigT1 = "2018-2022_technician-T-1"
const techFigT2 = "2018-2022_technician-T-2"
const techFigT3 = "2018-2022_technician-T-3"
const extraFigE5_1 = "2020_Extra-E5-1"
const extraFigE6_1 = "2020_Extra-E6-1"
const extraFigE6_2 = "2020_Extra-E6-2"
const extraFigE6_3 = "2020_Extra-E6-3"
const extraFigE7_1 = "2020_Extra-E7-1"
const extraFigE7_2 = "2020_Extra-E7-2"
const extraFigE7_3 = "2020_Extra-E7-3"
const extraFigE9_1 = "2020_Extra-E9-1"
const extraFigE9_2 = "2020_Extra-E9-2"
const extraFigE9_3 = "2020_Extra-E9-3"
// parse a single question
//
// G0A01 (A)
// What is one way that RF energy can affect human body tissue?
// A. It heats body tissue
// B. It causes radiation poisoning
// C. It causes the blood count to reach a dangerously low level
// D. It cools body tissue
// ~~
func qparse(q string) *proto.Question {
lines := strings.Split(q, "\n")
// title
sblmnt := lines[0][0:2]
section := string(lines[0][2])
seqnum, err := strconv.Atoi(lines[0][3:5])
if err != nil {
panic(err)
}
seqnumber := int32(seqnum)
keyChoice := lines[0][7:8]
chapter := ""
if len(lines[0]) > 10 {
chapter = lines[0][10:]
}
// stem
stem := ""
i := 1
for i = 1; i < len(lines); i++ {
if lines[i][0:2] == "A." {
break
} else {
stem += lines[i]
stem += " "
}
}
stem = strings.TrimSpace(stem)
fig := checkContaintedFigure(stem)
// answers
key := ""
var distractor []string
for _, t := range []string{"B.", "C.", "D.", "~~"} {
ans := ""
for ; i < len(lines); i++ {
if lines[i][0:2] == t {
break
} else {
ans += lines[i]
ans += " "
}
}
ans = strings.TrimSpace(ans)
if string(ans[0]) == keyChoice {
key = ans[3:]
} else {
distractor = append(distractor, ans[3:])
}
}
res := proto.Question{
Subelement: sblmnt,
Group: section,
Sequence: seqnumber,
Chapter: chapter,
Stem: stem,
Key: key,
Distractors: distractor,
Figure: fig,
}
return &res
}
func checkContaintedFigure(stem string) string {
containFigure, err := regexp.MatchString(".*[Ff]igure [Gg]7-1.*", stem)
if err != nil {
panic(err)
}
if containFigure {
return generalFigG7_1
}
containFigure, err = regexp.MatchString(".*[Ff]igure T1.*", stem)
if err != nil {
panic(err)
}
if containFigure {
return techFigT1
}
containFigure, err = regexp.MatchString(".*[Ff]igure T2.*", stem)
if err != nil {
panic(err)
}
if containFigure {
return techFigT2
}
containFigure, err = regexp.MatchString(".*[Ff]igure T3.*", stem)
if err != nil {
panic(err)
}
if containFigure {
return techFigT3
}
containFigure, err = regexp.MatchString(".*[Ff]igure E5-1.*", stem)
if err != nil {
panic(err)
}
if containFigure {
return extraFigE5_1
}
containFigure, err = regexp.MatchString(".*[Ff]igure E6-1.*", stem)
if err != nil {
panic(err)
}
if containFigure {
return extraFigE6_1
}
containFigure, err = regexp.MatchString(".*[Ff]igure E6-2.*", stem)
if err != nil {
panic(err)
}
if containFigure {
return extraFigE6_2
}
containFigure, err = regexp.MatchString(".*[Ff]igure E6-3.*", stem)
if err != nil {
panic(err)
}
if containFigure {
return extraFigE6_3
}
containFigure, err = regexp.MatchString(".*[Ff]igure E7-1.*", stem)
if err != nil {
panic(err)
}
if containFigure {
return extraFigE7_1
}
containFigure, err = regexp.MatchString(".*[Ff]igure E7-2.*", stem)
if err != nil {
panic(err)
}
if containFigure {
return extraFigE7_2
}
containFigure, err = regexp.MatchString(".*[Ff]igure E7-3.*", stem)
if err != nil {
panic(err)
}
if containFigure {
return extraFigE7_3
}
containFigure, err = regexp.MatchString(".*[Ff]igure E9-1.*", stem)
if err != nil {
panic(err)
}
if containFigure {
return extraFigE9_1
}
containFigure, err = regexp.MatchString(".*[Ff]igure E9-2.*", stem)
if err != nil {
panic(err)
}
if containFigure {
return extraFigE9_2
}
containFigure, err = regexp.MatchString(".*[Ff]igure E9-3.*", stem)
if err != nil {
panic(err)
}
if containFigure {
return extraFigE9_3
}
return ""
}