/
mdcat.go
64 lines (51 loc) · 1.23 KB
/
mdcat.go
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package main
import (
"bufio"
"flag"
"fmt"
"github.com/russross/blackfriday"
"io/ioutil"
"os"
)
func main() {
flag.Parse()
args := flag.Args()
renderer := &Console{}
extensions := 0 |
blackfriday.EXTENSION_NO_INTRA_EMPHASIS |
blackfriday.EXTENSION_FENCED_CODE |
blackfriday.EXTENSION_AUTOLINK |
blackfriday.EXTENSION_STRIKETHROUGH |
blackfriday.EXTENSION_SPACE_HEADERS |
blackfriday.EXTENSION_HEADER_IDS |
blackfriday.EXTENSION_BACKSLASH_LINE_BREAK |
blackfriday.EXTENSION_DEFINITION_LISTS
if len(args) > 0 {
for i := 0; i < len(args); i++ {
input, err := ioutil.ReadFile(args[i])
if err != nil {
os.Stderr.WriteString(fmt.Sprintf("mdcat: %s: unable to read from file\n", args[i]))
os.Exit(1)
}
output := blackfriday.Markdown(input, renderer, extensions)
os.Stdout.Write(output)
}
} else {
reader := bufio.NewReader(os.Stdin)
var input []byte
buffer := make([]byte, 2<<20)
for {
count, err := reader.Read(buffer)
if count == 0 {
break
}
if err != nil {
os.Stderr.WriteString("mdcat: unable to read from pipe\n")
os.Exit(1)
}
input = append(input, buffer...)
}
output := blackfriday.Markdown(input, renderer, extensions)
os.Stdout.Write(output)
}
}