Commit 3857747d authored by Robert Griesemer's avatar Robert Griesemer

go/scanner: remove some code

R=r
CC=golang-dev
https://golang.org/cl/4550077
parent 3c7271f0
......@@ -22,6 +22,7 @@ package scanner
import (
"bytes"
"fmt"
"go/token"
"path/filepath"
"strconv"
......@@ -134,36 +135,6 @@ func (S *Scanner) Init(file *token.File, src []byte, err ErrorHandler, mode uint
}
func charString(ch int) string {
var s string
switch ch {
case -1:
return `EOF`
case '\a':
s = `\a`
case '\b':
s = `\b`
case '\f':
s = `\f`
case '\n':
s = `\n`
case '\r':
s = `\r`
case '\t':
s = `\t`
case '\v':
s = `\v`
case '\\':
s = `\\`
case '\'':
s = `\'`
default:
s = string(ch)
}
return "'" + s + "' (U+" + strconv.Itob(ch, 16) + ")"
}
func (S *Scanner) error(offs int, msg string) {
if S.err != nil {
S.err.Error(S.file.Position(S.file.Pos(offs)), msg)
......@@ -700,7 +671,7 @@ scanAgain:
tok = S.switch3(token.OR, token.OR_ASSIGN, '|', token.LOR)
default:
if S.mode&AllowIllegalChars == 0 {
S.error(offs, "illegal character "+charString(ch))
S.error(offs, fmt.Sprintf("illegal character '%c' (%U)", ch, ch))
}
insertSemi = S.insertSemi // preserve insertSemi info
}
......
......@@ -650,7 +650,8 @@ var errors = []struct {
pos int
err string
}{
{`#`, token.ILLEGAL, 0, "illegal character '#' (U+23)"},
{"\a", token.ILLEGAL, 0, "illegal character '\a' (U+0007)"},
{`#`, token.ILLEGAL, 0, "illegal character '#' (U+0023)"},
{`' '`, token.CHAR, 0, ""},
{`''`, token.CHAR, 0, "illegal character literal"},
{`'\8'`, token.CHAR, 2, "unknown escape sequence"},
......
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