unicode \\[0-9a-f]{1,4}
latin1 [¡-ÿ]
escape {unicode}|\\[ -~¡-ÿ]
stringchar {escape}|{latin1}|[ !#$%&(-~]
nmstrt [a-z]|{latin1}|{escape}
nmchar [-a-z0-9]|{latin1}|{escape}
ident {nmstrt}{nmchar}*
name {nmchar}+
d [0-9]
notnm [^-a-z0-9\\]|{latin1}
w [ \t\n]*
num {d}+|{d}*\.{d}+
string \"({stringchar}|\')*\"|\'({stringchar}|\")*\'
%x COMMENT
%s AFTER_IDENT
%%
"/*" {BEGIN(COMMENT);}
<COMMENT>"*/" {BEGIN(0);}
<COMMENT>\n {/* ignore */}
<COMMENT>. {/* ignore */}
@import {BEGIN(0); return IMPORT_SYM;}
"!"{w}important {BEGIN(0); return IMPORTANT_SYM;}
{ident} {BEGIN(AFTER_IDENT); return IDENT;}
{string} {BEGIN(0); return STRING;}
{num} {BEGIN(0); return NUMBER;}
{num}"%" {BEGIN(0); return PERCENTAGE;}
{num}pt/{notnm} {BEGIN(0); return LENGTH;}
{num}mm/{notnm} {BEGIN(0); return LENGTH;}
{num}cm/{notnm} {BEGIN(0); return LENGTH;}
{num}pc/{notnm} {BEGIN(0); return LENGTH;}
{num}in/{notnm} {BEGIN(0); return LENGTH;}
{num}px/{notnm} {BEGIN(0); return LENGTH;}
{num}em/{notnm} {BEGIN(0); return EMS;}
{num}ex/{notnm} {BEGIN(0); return EXS;}
<AFTER_IDENT>":"link {return LINK_PSCLASS_AFTER_IDENT;}
<AFTER_IDENT>":"visited {return VISITED_PSCLASS_AFTER_IDENT;}
<AFTER_IDENT>":"active {return ACTIVE_PSCLASS_AFTER_IDENT;}
<AFTER_IDENT>":"first-line {return FIRST_LINE_AFTER_IDENT;}
<AFTER_IDENT>":"first-letter {return FIRST_LETTER_AFTER_IDENT;}
<AFTER_IDENT>"#"{name} {return HASH_AFTER_IDENT;}
<AFTER_IDENT>"."{name} {return CLASS_AFTER_IDENT;}
":"link {BEGIN(AFTER_IDENT); return LINK_PSCLASS;}
":"visited {BEGIN(AFTER_IDENT); return VISITED_PSCLASS;}
":"active {BEGIN(AFTER_IDENT); return ACTIVE_PSCLASS;}
":"first-line {BEGIN(AFTER_IDENT); return FIRST_LINE;}
":"first-letter {BEGIN(AFTER_IDENT); return FIRST_LETTER;}
"#"{name} {BEGIN(AFTER_IDENT); return HASH;}
"."{name} {BEGIN(AFTER_IDENT); return CLASS;}
url\({w}{string}{w}\) |
url\({w}([^ \n\'\")]|\\\ |\\\'|\\\"|\\\))+{w}\) {BEGIN(0); return URL;}
rgb\({w}{num}%?{w}\,{w}{num}%?{w}\,{w}{num}%?{w}\) {BEGIN(0); return RGB;}
[-/+{};,#:] {BEGIN(0); return *yytext;}
[ \t]+ {BEGIN(0); /* ignore whitespace */}
\n {BEGIN(0); /* ignore whitespace */}
\<\!\-\- {BEGIN(0); return CDO;}
\-\-\> {BEGIN(0); return CDC;}
. {fprintf(stderr, "%d: Illegal character (%d)\n",
lineno, *yytext);}
|
%option case-insensitive
h [0-9a-f]
nonascii [\240-\377]
unicode \\{h}{1,6}(\r\n|[ \t\r\n\f])?
escape {unicode}|\\[^\r\n\f0-9a-f]
nmstart [_a-z]|{nonascii}|{escape}
nmchar [_a-z0-9-]|{nonascii}|{escape}
string1 \"([^\n\r\f\\"]|\\{nl}|{escape})*\"
string2 \'([^\n\r\f\\']|\\{nl}|{escape})*\'
badstring1 \"([^\n\r\f\\"]|\\{nl}|{escape})*\\?
badstring2 \'([^\n\r\f\\']|\\{nl}|{escape})*\\?
badcomment1 \/\*[^*]*\*+([^/*][^*]*\*+)*
badcomment2 \/\*[^*]*(\*+[^/*][^*]*)*
baduri1 url\({w}([!#$%&*-\[\]-~]|{nonascii}|{escape})*{w}
baduri2 url\({w}{string}{w}
baduri3 url\({w}{badstring}
comment \/\*[^*]*\*+([^/*][^*]*\*+)*\/
ident -?{nmstart}{nmchar}*
name {nmchar}+
num [0-9]+|[0-9]*"."[0-9]+
string {string1}|{string2}
badstring {badstring1}|{badstring2}
badcomment {badcomment1}|{badcomment2}
baduri {baduri1}|{baduri2}|{baduri3}
url ([!#$%&*-~]|{nonascii}|{escape})*
s [ \t\r\n\f]+
w {s}?
nl \n|\r\n|\r|\f
A a|\\0{0,4}(41|61)(\r\n|[ \t\r\n\f])?
C c|\\0{0,4}(43|63)(\r\n|[ \t\r\n\f])?
D d|\\0{0,4}(44|64)(\r\n|[ \t\r\n\f])?
E e|\\0{0,4}(45|65)(\r\n|[ \t\r\n\f])?
G g|\\0{0,4}(47|67)(\r\n|[ \t\r\n\f])?|\\g
H h|\\0{0,4}(48|68)(\r\n|[ \t\r\n\f])?|\\h
I i|\\0{0,4}(49|69)(\r\n|[ \t\r\n\f])?|\\i
K k|\\0{0,4}(4b|6b)(\r\n|[ \t\r\n\f])?|\\k
L l|\\0{0,4}(4c|6c)(\r\n|[ \t\r\n\f])?|\\l
M m|\\0{0,4}(4d|6d)(\r\n|[ \t\r\n\f])?|\\m
N n|\\0{0,4}(4e|6e)(\r\n|[ \t\r\n\f])?|\\n
O o|\\0{0,4}(4f|6f)(\r\n|[ \t\r\n\f])?|\\o
P p|\\0{0,4}(50|70)(\r\n|[ \t\r\n\f])?|\\p
R r|\\0{0,4}(52|72)(\r\n|[ \t\r\n\f])?|\\r
S s|\\0{0,4}(53|73)(\r\n|[ \t\r\n\f])?|\\s
T t|\\0{0,4}(54|74)(\r\n|[ \t\r\n\f])?|\\t
U u|\\0{0,4}(55|75)(\r\n|[ \t\r\n\f])?|\\u
X x|\\0{0,4}(58|78)(\r\n|[ \t\r\n\f])?|\\x
Z z|\\0{0,4}(5a|7a)(\r\n|[ \t\r\n\f])?|\\z
%%
{s} {return S;}
\/\*[^*]*\*+([^/*][^*]*\*+)*\/ /* ignore comments */
{badcomment} /* unclosed comment at EOF */
"" {return CDC;}
"~=" {return INCLUDES;}
"|=" {return DASHMATCH;}
{string} {return STRING;}
{badstring} {return BAD_STRING;}
{ident} {return IDENT;}
"#"{name} {return HASH;}
@{I}{M}{P}{O}{R}{T} {return IMPORT_SYM;}
@{P}{A}{G}{E} {return PAGE_SYM;}
@{M}{E}{D}{I}{A} {return MEDIA_SYM;}
"@charset " {return CHARSET_SYM;}
"!"({w}|{comment})*{I}{M}{P}{O}{R}{T}{A}{N}{T} {return IMPORTANT_SYM;}
{num}{E}{M} {return EMS;}
{num}{E}{X} {return EXS;}
{num}{P}{X} {return LENGTH;}
{num}{C}{M} {return LENGTH;}
{num}{M}{M} {return LENGTH;}
{num}{I}{N} {return LENGTH;}
{num}{P}{T} {return LENGTH;}
{num}{P}{C} {return LENGTH;}
{num}{D}{E}{G} {return ANGLE;}
{num}{R}{A}{D} {return ANGLE;}
{num}{G}{R}{A}{D} {return ANGLE;}
{num}{M}{S} {return TIME;}
{num}{S} {return TIME;}
{num}{H}{Z} {return FREQ;}
{num}{K}{H}{Z} {return FREQ;}
{num}{ident} {return DIMENSION;}
{num}% {return PERCENTAGE;}
{num} {return NUMBER;}
"url("{w}{string}{w}")" {return URI;}
"url("{w}{url}{w}")" {return URI;}
{baduri} {return BAD_URI;}
{ident}"(" {return FUNCTION;}
. {return *yytext;}
|