// Copyright 2015 The Go Authors. All rights reserved.// Use of this source code is governed by a BSD-style// license that can be found in the LICENSE file. // +build ignore // This is a mini version of the stringer tool customized for the Anames table// in the architecture support for obj.// This version just generates the slice of strings, not the String method. package main import (	"bufio"	"flag"	"fmt"	"log"	"os"	"regexp"	"strings") var (	input  = flag.String("i", "", "input file name")	output = flag.String("o", "", "output file name")	pkg    = flag.String("p", "", "package name")) var Are = regexp.MustCompile(`^\tA([A-Z0-9]+)`) func main() {	flag.Parse()	if *input == "" || *output == "" || *pkg == "" {		flag.Usage()		os.Exit(2)	}	in, err := os.Open(*input)	if err != nil {		log.Fatal(err)	}	fd, err := os.Create(*output)	if err != nil {		log.Fatal(err)	}	out := bufio.NewWriter(fd)	defer out.Flush()	var on = false	s := bufio.NewScanner(in)	first := true	for s.Scan() {		line := s.Text()		if !on {			// First relevant line contains "= obj.ABase".			// If we find it, delete the = so we don't stop immediately.			const prefix = "= obj.ABase"			index := strings.Index(line, prefix)			if index < 0 {				continue			}			// It's on. Start with the header.			fmt.Fprintf(out, header, *input, *output, *pkg, *pkg)			on = true			line = line[:index]		}		// Strip comments so their text won't defeat our heuristic.		index := strings.Index(line, "//")		if index > 0 {			line = line[:index]		}		index = strings.Index(line, "/*")		if index > 0 {			line = line[:index]		}		// Termination condition: Any line with an = changes the sequence,		// so stop there, and stop at a closing brace.		if strings.HasPrefix(line, "}") || strings.ContainsRune(line, '=') {			break		}		sub := Are.FindStringSubmatch(line)		if len(sub) < 2 {			continue		}		if first {			fmt.Fprintf(out, "\tobj.A_ARCHSPECIFIC: %q,\n", sub[1])			first = false		} else {			fmt.Fprintf(out, "\t%q,\n", sub[1])		}	}	fmt.Fprintln(out, "}")	if s.Err() != nil {		log.Fatal(err)	}} const header = `// Generated by stringer -i %s -o %s -p %s// Do not edit. package %s import "cmd/internal/obj" var Anames = []string{`