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slightly faster parsing

This commit is contained in:
Miek Gieben 2012-02-23 20:13:37 +01:00
parent 6dd212088e
commit 3b089b94fc
1 changed files with 8 additions and 6 deletions
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14
zscan.go
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@ -13,7 +13,7 @@ var _DEBUG = false
// Complete unsure about the correctness of this value?
// Large blobs of base64 code might get longer than this....
const maxTok = 512
const maxTok = 2048
// Tokinize a RFC 1035 zone file. The tokenizer will normalize it:
// * Add ownernames if they are left blank;
@ -77,7 +77,7 @@ func (e *ParseError) Error() (s string) {
type lex struct {
token string // Text of the token
err string // Error text when the lexer detects it. Not used by the grammar
err bool // When true, token text has lexer error
value uint8 // Value: _STRING, _BLANK, etc.
line int // Line in the file
column int // Column in the fil
@ -162,8 +162,8 @@ func parseZone(r io.Reader, origin, f string, t chan Token, include int) {
fmt.Printf("[%v]\n", l)
}
// Lexer spotted an error already
if l.err != "" {
t <- Token{Error: &ParseError{f, l.err, l}}
if l.err == true {
t <- Token{Error: &ParseError{f, l.token, l}}
return
}
@ -466,7 +466,8 @@ func zlexer(s *scan, c chan lex) {
l.column = s.position.Column
l.line = s.position.Line
if stri > maxTok {
l.err = "tok length insufficient for parsing"
l.token = "tok length insufficient for parsing"
l.err = true
c <- l
return
}
@ -656,7 +657,8 @@ func zlexer(s *scan, c chan lex) {
case ')':
brace--
if brace < 0 {
l.err = "extra closing brace"
l.token = "extra closing brace"
l.err = true
c <- l
return
}