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Some updates in the comments/documentation

This commit is contained in:
Miek Gieben 2012-12-02 08:31:56 +01:00
parent 743553c6d1
commit a014286039
1 changed files with 11 additions and 14 deletions
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25
zscan.go
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@ -8,19 +8,16 @@ import (
"strings"
)
// Only used when debugging the parser itself.
var _DEBUG = false
var _DEBUG = false // Only used when debugging the parser itself.
// Complete unsure about the correctness of this value?
// Large blobs of base64 code might get longer than this....
const maxTok = 2048
const maxTok = 2048 // Largest token we can return.
// Tokinize a RFC 1035 zone file. The tokenizer will normalize it:
// * Add ownernames if they are left blank;
// * Suppress sequences of spaces;
// * Make each RR fit on one line (NEWLINE is send as last)
// * Make each RR fit on one line (_NEWLINE is send as last)
// * Handle comments: ;
// * Handle braces.
// * Handle braces - anywhere.
const (
// Zonefile
_EOF = iota
@ -44,7 +41,7 @@ const (
_EXPECT_OWNER_BL // Whitespace after the ownername
_EXPECT_ANY // Expect rrtype, ttl or class
_EXPECT_ANY_NOCLASS // Expect rrtype or ttl
_EXPECT_ANY_NOCLASS_BL // The Whitespace after _EXPECT_ANY_NOCLASS
_EXPECT_ANY_NOCLASS_BL // The whitespace after _EXPECT_ANY_NOCLASS
_EXPECT_ANY_NOTTL // Expect rrtype or class
_EXPECT_ANY_NOTTL_BL // Whitespace after _EXPECT_ANY_NOTTL
_EXPECT_RRTYPE // Expect rrtype
@ -78,12 +75,12 @@ func (e *ParseError) Error() (s string) {
}
type lex struct {
token string // Text of the token
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 file
torc uint16 // Type or class as parsed in the lexer, we only need to look this up in the grammar
token string // text of the token
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 file
torc uint16 // type or class as parsed in the lexer, we only need to look this up in the grammar
}
// Tokens are returned when a zone file is parsed.