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Allow DNS labels to start with an underscore.

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Sam Hocevar 2021-02-13 18:43:33 +01:00
parent a8ca595620
commit 44f973d9fd
1 changed files with 4 additions and 3 deletions
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7
src/parse.peg
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@ -141,7 +141,7 @@ invalid_syntax = < (!eol .)+ > eol
} }
service = name service = name
address = ipv4 | ipv6 | hostname # TODO: IPV6 address = ipv4 | ipv6 | hostname
pattern = [0-9*?]+ ('.' [0-9*?]+ ('.' [0-9*?]+ ('.' [0-9*?]+)?)?)? pattern = [0-9*?]+ ('.' [0-9*?]+ ('.' [0-9*?]+ ('.' [0-9*?]+)?)?)?
number = digit+ number = digit+
@ -150,14 +150,15 @@ ipv6 = (hexdigit | ':')+ | '[' ipv6 ']'
hostname = (label '.')* name '.'? hostname = (label '.')* name '.'?
name = [a-zA-Z_] [-a-zA-Z0-9_]* name = id ('-' | id | digit)*
label = [0-9]* name label = (id | digit) ('-' | id | digit)* # DNS labels may have digits
filename = '"' [^"]+ '"' filename = '"' [^"]+ '"'
| [^ \t\r\n]+ | [^ \t\r\n]+
- = [ \t]+ - = [ \t]+
digit = [0-9] digit = [0-9]
hexdigit = [0-9a-fA-F] hexdigit = [0-9a-fA-F]
id = [a-zA-Z_]
sol = { ++yy->currentLine; } sol = { ++yy->currentLine; }
eol = '\r'? '\n' | eof eol = '\r'? '\n' | eof
eof = '\0' eof = '\0'