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package deb822
import (
"bufio"
"fmt"
"strings"
)
/*ParseStream parses a stream and returns an array of maps, where
/* each map contains all the fields of an RFC822 stanza */
func ParseStream(stream *bufio.Scanner) (Stanzas, int) {
s := make(Stanzas, 10)
curSize := 10
for i := 0; i < 10; i++ {
s[i] = make(map[string]string)
}
curStanza := 0
curField := ""
for stream.Scan() {
if strings.TrimSpace(stream.Text()) == "" {
if curField == "" {
continue
}
curStanza++
curField = ""
fmt.Printf("==== New stanza ==== (Nr. %d/%d)\n", curStanza, curSize)
if curStanza >= curSize {
newS := make(Stanzas, curSize*2)
for i := curSize; i < curSize*2; i++ {
newS[i] = make(map[string]string)
}
curSize *= 2
copy(newS, s)
s = newS
}
continue
}
//fmt.Printf("line: %s\n", stream.Text())
field := strings.SplitN(stream.Text(), ":", 2)
//fmt.Printf("field: %s\n", field)
if len(field) > 1 {
/* This is a new field*/
curField = field[0]
s[curStanza][curField] = strings.TrimSpace(field[1])
} else {
/* this is the continuation of the last field */
s[curStanza][curField] += "\n" + field[0]
}
}
return s, curStanza
}
/*ScanStanza reads a single RFC822 stanza from a stream and returns
/* it as a map */
func ScanStanza(stream *bufio.Scanner) (Stanza, error) {
s := make(Stanza)
curField := ""
for stream.Scan() {
if strings.TrimSpace(stream.Text()) == "" {
return s, nil
}
field := strings.SplitN(stream.Text(), ":", 2)
if len(field) > 1 {
/* This is a new field*/
curField = field[0]
s[curField] = strings.TrimSpace(field[1])
} else {
/* this is the continuation of the last field */
s[curField] += "\n" + field[0]
}
}
err := stream.Err()
return s, err
}
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