mdtoc/main.go

74 lines
1.1 KiB
Go

package main
// TODO: read a file line by line
import (
"fmt"
"log"
"os"
"path"
"strings"
)
type heading struct {
text string
level int
line int
}
func is_heading(line string) bool {
if strings.HasPrefix(line, "#") {
return true
} else {
return false
}
}
func Get_heading_level(heading_text string) int {
level := 0
for i := 0; heading_text[i] == '#'; i++ {
level += 1
if i == (len(heading_text) - 1) {
break
}
}
return level
}
func parse_file(file_name string) []heading {
var headings []heading
file_content_raw, err := os.ReadFile(file_name)
if err != nil {
log.Fatal(err)
}
file_lines := strings.Split(string(file_content_raw), "\n")
is_codeblock := false
for index, value := range file_lines {
if strings.HasPrefix(value, "```") {
is_codeblock = !is_codeblock
}
if !is_codeblock && is_heading(value) {
headings = append(
headings, heading{value, Get_heading_level(value), (index + 1)})
}
}
return headings
}
func main() {
file_name := os.Args[1]
var headings []heading = nil
headings = parse_file(file_name)
fmt.Println(path.Base(file_name))
tree(-1, "", headings)
}