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|
//usr/bin/env go run "$0" "$@"; exit $?
package main
import (
"bufio"
"fmt"
"io"
"os"
"sort"
"strconv"
"strings"
)
func handleErr(err error) {
if err != nil {
fmt.Fprintf(os.Stderr, "%v\n", err)
os.Exit(1)
}
}
func main() {
var mode string
blocks := map[string]int{}
for _, filename := range os.Args[1:] {
file, err := os.Open(filename)
handleErr(err)
buf := bufio.NewReader(file)
err = nil
for err != io.EOF {
var line string
line, err = buf.ReadString('\n')
if err == io.EOF {
continue
}
handleErr(err)
line = strings.TrimSuffix(line, "\n")
if strings.HasPrefix(line, "mode:") {
if mode == "" {
mode = line
} else if mode != line {
fmt.Fprintf(os.Stderr, "mixed modes: %q != %q\n", mode, line)
os.Exit(1)
}
} else {
sp := strings.LastIndexByte(line, ' ')
block := line[:sp]
cntStr := line[sp+1:]
cnt, err := strconv.Atoi(cntStr)
handleErr(err)
blocks[block] += cnt
}
}
}
keys := make([]string, 0, len(blocks))
for key := range blocks {
keys = append(keys, key)
}
sort.Strings(keys)
fmt.Println(mode)
for _, block := range keys {
fmt.Printf("%s %d\n", block, blocks[block])
}
}
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