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courses.go
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/
courses.go
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package main
import (
"fmt"
"strconv"
"strings"
"github.com/PuerkitoBio/goquery"
)
type Course struct {
Subject string
CatalogNumber int
ClassNumber int
Title string
Instructor string
Credits string
Term Term
}
type Term struct {
Semester string
Year int
ID int
}
func NewTerm(termId string) Term {
semester := ""
if termId[3] == '1' {
semester = "Fall"
} else if termId[3] == '4' {
semester = "Spring"
} else if termId[3] == '7' {
semester = "Summer"
}
// This code will last 100 years I say!!
year, _ := strconv.Atoi("20" + string(termId[1]) + string(termId[2]))
termNum, _ := strconv.Atoi(termId)
return Term{Semester: semester, Year: year, ID: termNum}
}
// Ugliness. RIP Go parsing. TODO - clean this up.
func ParseCourses(term string, courseType string) []Course {
courses := []Course{}
url := fmt.Sprintf("http://www.courses.as.pitt.edu/results-subja.asp?TERM=%s&SUBJ=%s", term, courseType)
doc, _ := goquery.NewDocument(url)
doc.Find("tr.odd").Each(func(i int, s *goquery.Selection) {
course := ParseCourse(s)
courses = append(courses, course)
})
doc.Find("tr.even").Each(func(i int, s *goquery.Selection) {
course := ParseCourse(s)
courses = append(courses, course)
})
return courses
}
func ParseCourse(s *goquery.Selection) Course {
subject := strings.TrimSpace(s.Find("td").Eq(0).Text())
catalog := strings.TrimSpace(s.Find("td").Eq(1).Text())
termStr := strings.TrimSpace(s.Find("td").Eq(2).Text())
class := strings.TrimSpace(s.Find("td").Eq(3).Text())
title := strings.TrimSpace(s.Find("td").Eq(4).Text())
instructor := strings.TrimSpace(s.Find("td").Eq(5).Text())
credits := strings.TrimSpace(s.Find("td").Eq(6).Text())
catalogNum, _ := strconv.Atoi(catalog)
classNum, _ := strconv.Atoi(strings.TrimSpace(class))
// Damn you unicode NBSP!!!
filter := strings.Replace(termStr, "\u0020", "", -1)
termCleaned := strings.Split(filter, "\u00A0")[0]
course := Course{
Subject: subject,
CatalogNumber: catalogNum,
ClassNumber: classNum,
Title: title,
Instructor: instructor,
Credits: credits,
Term: NewTerm(termCleaned),
}
return course
}