diff options
author | Robert Griesemer <gri@golang.org> | 2009-11-09 12:07:39 -0800 |
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committer | Robert Griesemer <gri@golang.org> | 2009-11-09 12:07:39 -0800 |
commit | e940edc7a026293153ba09ece40e8092a2fc2463 (patch) | |
tree | c94a425c84b7a48f91a5d76a222effad70c9a88c /src/pkg/go/scanner/scanner.go | |
parent | e067f862f1774ab89a2096a88571a94e3b9cd353 (diff) | |
download | golang-e940edc7a026293153ba09ece40e8092a2fc2463.tar.gz |
remove semis after statements in one-statement statement lists
R=rsc, r
http://go/go-review/1025029
Diffstat (limited to 'src/pkg/go/scanner/scanner.go')
-rw-r--r-- | src/pkg/go/scanner/scanner.go | 120 |
1 files changed, 60 insertions, 60 deletions
diff --git a/src/pkg/go/scanner/scanner.go b/src/pkg/go/scanner/scanner.go index 7f707296e..cc4ff9cc4 100644 --- a/src/pkg/go/scanner/scanner.go +++ b/src/pkg/go/scanner/scanner.go @@ -52,7 +52,7 @@ func (S *Scanner) next() { S.pos.Column = 0; case r >= 0x80: // not ASCII - r, w = utf8.DecodeRune(S.src[S.offset : len(S.src)]); + r, w = utf8.DecodeRune(S.src[S.offset : len(S.src)]) } S.offset += w; S.ch = r; @@ -96,27 +96,27 @@ func charString(ch int) string { var s string; switch ch { case -1: - return `EOF`; + return `EOF` case '\a': - s = `\a`; + s = `\a` case '\b': - s = `\b`; + s = `\b` case '\f': - s = `\f`; + s = `\f` case '\n': - s = `\n`; + s = `\n` case '\r': - s = `\r`; + s = `\r` case '\t': - s = `\t`; + s = `\t` case '\v': - s = `\v`; + s = `\v` case '\\': - s = `\\`; + s = `\\` case '\'': - s = `\'`; + s = `\'` default: - s = string(ch); + s = string(ch) } return "'" + s + "' (U+" + strconv.Itob(ch, 16) + ")"; } @@ -124,7 +124,7 @@ func charString(ch int) string { func (S *Scanner) error(pos token.Position, msg string) { if S.err != nil { - S.err.Error(pos, msg); + S.err.Error(pos, msg) } S.ErrorCount++; } @@ -132,7 +132,7 @@ func (S *Scanner) error(pos token.Position, msg string) { func (S *Scanner) expect(ch int) { if S.ch != ch { - S.error(S.pos, "expected " + charString(ch) + ", found " + charString(S.ch)); + S.error(S.pos, "expected " + charString(ch) + ", found " + charString(S.ch)) } S.next(); // always make progress } @@ -188,19 +188,19 @@ func (S *Scanner) scanComment(pos token.Position) { func isLetter(ch int) bool { - return 'a' <= ch && ch <= 'z' || 'A' <= ch && ch <= 'Z' || ch == '_' || ch >= 0x80 && unicode.IsLetter(ch); + return 'a' <= ch && ch <= 'z' || 'A' <= ch && ch <= 'Z' || ch == '_' || ch >= 0x80 && unicode.IsLetter(ch) } func isDigit(ch int) bool { - return '0' <= ch && ch <= '9' || ch >= 0x80 && unicode.IsDigit(ch); + return '0' <= ch && ch <= '9' || ch >= 0x80 && unicode.IsDigit(ch) } func (S *Scanner) scanIdentifier() token.Token { pos := S.pos.Offset; for isLetter(S.ch) || isDigit(S.ch) { - S.next(); + S.next() } return token.Lookup(S.src[pos : S.pos.Offset]); } @@ -209,11 +209,11 @@ func (S *Scanner) scanIdentifier() token.Token { func digitVal(ch int) int { switch { case '0' <= ch && ch <= '9': - return ch-'0'; + return ch-'0' case 'a' <= ch && ch <= 'f': - return ch-'a'+10; + return ch-'a'+10 case 'A' <= ch && ch <= 'F': - return ch-'A'+10; + return ch-'A'+10 } return 16; // larger than any legal digit val } @@ -221,7 +221,7 @@ func digitVal(ch int) int { func (S *Scanner) scanMantissa(base int) { for digitVal(S.ch) < base { - S.next(); + S.next() } } @@ -272,7 +272,7 @@ exponent: tok = token.FLOAT; S.next(); if S.ch == '-' || S.ch == '+' { - S.next(); + S.next() } S.scanMantissa(10); } @@ -288,7 +288,7 @@ func (S *Scanner) scanDigits(base, length int) { length--; } if length > 0 { - S.error(S.pos, "illegal char escape"); + S.error(S.pos, "illegal char escape") } } @@ -301,15 +301,15 @@ func (S *Scanner) scanEscape(quote int) { case 'a', 'b', 'f', 'n', 'r', 't', 'v', '\\', quote: // nothing to do case '0', '1', '2', '3', '4', '5', '6', '7': - S.scanDigits(8, 3-1); // 1 char read already + S.scanDigits(8, 3-1) // 1 char read already case 'x': - S.scanDigits(16, 2); + S.scanDigits(16, 2) case 'u': - S.scanDigits(16, 4); + S.scanDigits(16, 4) case 'U': - S.scanDigits(16, 8); + S.scanDigits(16, 8) default: - S.error(pos, "illegal char escape"); + S.error(pos, "illegal char escape") } } @@ -328,14 +328,14 @@ func (S *Scanner) scanChar(pos token.Position) { break; } if ch == '\\' { - S.scanEscape('\''); + S.scanEscape('\'') } } S.next(); if n != 1 { - S.error(pos, "illegal character literal"); + S.error(pos, "illegal character literal") } } @@ -351,7 +351,7 @@ func (S *Scanner) scanString(pos token.Position) { break; } if ch == '\\' { - S.scanEscape('"'); + S.scanEscape('"') } } @@ -435,7 +435,7 @@ func (S *Scanner) Scan() (pos token.Position, tok token.Token, lit []byte) { scan_again: // skip white space for S.ch == ' ' || S.ch == '\t' || S.ch == '\n' || S.ch == '\r' { - S.next(); + S.next() } // current token start @@ -444,14 +444,14 @@ scan_again: // determine token value switch ch := S.ch; { case isLetter(ch): - tok = S.scanIdentifier(); + tok = S.scanIdentifier() case digitVal(ch) < 10: - tok = S.scanNumber(false); + tok = S.scanNumber(false) default: S.next(); // always make progress switch ch { case -1: - tok = token.EOF; + tok = token.EOF case '"': tok = token.STRING; S.scanString(pos); @@ -462,10 +462,10 @@ scan_again: tok = token.STRING; S.scanRawString(pos); case ':': - tok = S.switch2(token.COLON, token.DEFINE); + tok = S.switch2(token.COLON, token.DEFINE) case '.': if digitVal(S.ch) < 10 { - tok = S.scanNumber(true); + tok = S.scanNumber(true) } else if S.ch == '.' { S.next(); if S.ch == '.' { @@ -473,69 +473,69 @@ scan_again: tok = token.ELLIPSIS; } } else { - tok = token.PERIOD; + tok = token.PERIOD } case ',': - tok = token.COMMA; + tok = token.COMMA case ';': - tok = token.SEMICOLON; + tok = token.SEMICOLON case '(': - tok = token.LPAREN; + tok = token.LPAREN case ')': - tok = token.RPAREN; + tok = token.RPAREN case '[': - tok = token.LBRACK; + tok = token.LBRACK case ']': - tok = token.RBRACK; + tok = token.RBRACK case '{': - tok = token.LBRACE; + tok = token.LBRACE case '}': - tok = token.RBRACE; + tok = token.RBRACE case '+': - tok = S.switch3(token.ADD, token.ADD_ASSIGN, '+', token.INC); + tok = S.switch3(token.ADD, token.ADD_ASSIGN, '+', token.INC) case '-': - tok = S.switch3(token.SUB, token.SUB_ASSIGN, '-', token.DEC); + tok = S.switch3(token.SUB, token.SUB_ASSIGN, '-', token.DEC) case '*': - tok = S.switch2(token.MUL, token.MUL_ASSIGN); + tok = S.switch2(token.MUL, token.MUL_ASSIGN) case '/': if S.ch == '/' || S.ch == '*' { S.scanComment(pos); tok = token.COMMENT; if S.mode & ScanComments == 0 { - goto scan_again; + goto scan_again } } else { - tok = S.switch2(token.QUO, token.QUO_ASSIGN); + tok = S.switch2(token.QUO, token.QUO_ASSIGN) } case '%': - tok = S.switch2(token.REM, token.REM_ASSIGN); + tok = S.switch2(token.REM, token.REM_ASSIGN) case '^': - tok = S.switch2(token.XOR, token.XOR_ASSIGN); + tok = S.switch2(token.XOR, token.XOR_ASSIGN) case '<': if S.ch == '-' { S.next(); tok = token.ARROW; } else { - tok = S.switch4(token.LSS, token.LEQ, '<', token.SHL, token.SHL_ASSIGN); + tok = S.switch4(token.LSS, token.LEQ, '<', token.SHL, token.SHL_ASSIGN) } case '>': - tok = S.switch4(token.GTR, token.GEQ, '>', token.SHR, token.SHR_ASSIGN); + tok = S.switch4(token.GTR, token.GEQ, '>', token.SHR, token.SHR_ASSIGN) case '=': - tok = S.switch2(token.ASSIGN, token.EQL); + tok = S.switch2(token.ASSIGN, token.EQL) case '!': - tok = S.switch2(token.NOT, token.NEQ); + tok = S.switch2(token.NOT, token.NEQ) case '&': if S.ch == '^' { S.next(); tok = S.switch2(token.AND_NOT, token.AND_NOT_ASSIGN); } else { - tok = S.switch3(token.AND, token.AND_ASSIGN, '&', token.LAND); + tok = S.switch3(token.AND, token.AND_ASSIGN, '&', token.LAND) } case '|': - tok = S.switch3(token.OR, token.OR_ASSIGN, '|', token.LOR); + tok = S.switch3(token.OR, token.OR_ASSIGN, '|', token.LOR) default: if S.mode & AllowIllegalChars == 0 { - S.error(pos, "illegal character " + charString(ch)); + S.error(pos, "illegal character " + charString(ch)) } } } |