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      1 %option case-insensitive
      2 %option noyywrap
      3 %option 8bit
      4 %option stack
      5 %s mediaquery
      6 %s forkeyword
      7 
      8 h               [0-9a-fA-F]
      9 nonascii        [\200-\377]
     10 unicode         \\{h}{1,6}[ \t\r\n\f]?
     11 escape          {unicode}|\\[ -~\200-\377]
     12 nmstart         [_a-zA-Z]|{nonascii}|{escape}
     13 nmchar          [_a-zA-Z0-9-]|{nonascii}|{escape}
     14 string1         \"([\t !#$%&(-~]|\\{nl}|\'|{nonascii}|{escape})*\"
     15 string2         \'([\t !#$%&(-~]|\\{nl}|\"|{nonascii}|{escape})*\'
     16 hexcolor        {h}{3}|{h}{6}
     17 
     18 ident           -?{nmstart}{nmchar}*
     19 name            {nmchar}+
     20 num             [0-9]+|[0-9]*"."[0-9]+
     21 intnum          [0-9]+
     22 string          {string1}|{string2}
     23 url             ([!#$%&*-~]|{nonascii}|{escape})*
     24 w               [ \t\r\n\f]*
     25 nl              \n|\r\n|\r|\f
     26 range           \?{1,6}|{h}(\?{0,5}|{h}(\?{0,4}|{h}(\?{0,3}|{h}(\?{0,2}|{h}(\??|{h})))))
     27 nth             (-?[0-9]*n[\+-][0-9]+)|(-?[0-9]*n)
     28 
     29 %%
     30 
     31 \/\*[^*]*\*+([^/*][^*]*\*+)*\/  /* ignore comments */
     32 
     33 [ \t\r\n\f]+            {yyTok = WHITESPACE; return yyTok;}
     34 
     35 "<!--"                  {yyTok = SGML_CD; return yyTok;}
     36 "-->"                   {yyTok = SGML_CD; return yyTok;}
     37 "~="                    {yyTok = INCLUDES; return yyTok;}
     38 "|="                    {yyTok = DASHMATCH; return yyTok;}
     39 "^="                    {yyTok = BEGINSWITH; return yyTok;}
     40 "$="                    {yyTok = ENDSWITH; return yyTok;}
     41 "*="                    {yyTok = CONTAINS; return yyTok;}
     42 <mediaquery>"not"       {yyTok = MEDIA_NOT; return yyTok;}
     43 <mediaquery>"only"      {yyTok = MEDIA_ONLY; return yyTok;}
     44 <mediaquery>"and"       {yyTok = MEDIA_AND; return yyTok;}
     45 <forkeyword>"for"       {BEGIN(mediaquery); yyTok = VARIABLES_FOR; return yyTok; }
     46 
     47 {string}                {yyTok = STRING; return yyTok;}
     48 {ident}                 {yyTok = IDENT; return yyTok;}
     49 {nth}                   {yyTok = NTH; return yyTok;}
     50 
     51 "#"{hexcolor}           {yyTok = HEX; return yyTok;}
     52 "#"{ident}              {yyTok = IDSEL; return yyTok;}
     53 
     54 "@import"               {BEGIN(mediaquery); yyTok = IMPORT_SYM; return yyTok;}
     55 "@page"                 {yyTok = PAGE_SYM; return yyTok;}
     56 "@media"                {BEGIN(mediaquery); yyTok = MEDIA_SYM; return yyTok;}
     57 "@font-face"            {yyTok = FONT_FACE_SYM; return yyTok;}
     58 "@charset"              {yyTok = CHARSET_SYM; return yyTok;}
     59 "@namespace"            {yyTok = NAMESPACE_SYM; return yyTok; }
     60 "@-webkit-rule"         {yyTok = WEBKIT_RULE_SYM; return yyTok; }
     61 "@-webkit-decls"        {yyTok = WEBKIT_DECLS_SYM; return yyTok; }
     62 "@-webkit-value"        {yyTok = WEBKIT_VALUE_SYM; return yyTok; }
     63 "@-webkit-mediaquery"   {BEGIN(mediaquery); yyTok = WEBKIT_MEDIAQUERY_SYM; return yyTok; }
     64 "@-webkit-selector"     {yyTok = WEBKIT_SELECTOR_SYM; return yyTok; }
     65 "@-webkit-variables"    {BEGIN(mediaquery); yyTok = WEBKIT_VARIABLES_SYM; return yyTok; }
     66 "@-webkit-define"       {BEGIN(forkeyword); yyTok = WEBKIT_DEFINE_SYM; return yyTok; }
     67 "@-webkit-variables-decls" { yyTok = WEBKIT_VARIABLES_DECLS_SYM; return yyTok; }
     68 "@-webkit-keyframes"    {yyTok = WEBKIT_KEYFRAMES_SYM; return yyTok; }
     69 "@-webkit-keyframe-rule" {yyTok = WEBKIT_KEYFRAME_RULE_SYM; return yyTok; }
     70 
     71 "@"{ident}              {yyTok = ATKEYWORD; return yyTok; }
     72 
     73 "!"{w}"important"       {yyTok = IMPORTANT_SYM; return yyTok;}
     74 
     75 {num}em                 {yyTok = EMS; return yyTok;}
     76 {num}rem                {yyTok = REMS; return yyTok;}
     77 {num}__qem              {yyTok = QEMS; return yyTok;} /* quirky ems */
     78 {num}ex                 {yyTok = EXS; return yyTok;}
     79 {num}px                 {yyTok = PXS; return yyTok;}
     80 {num}cm                 {yyTok = CMS; return yyTok;}
     81 {num}mm                 {yyTok = MMS; return yyTok;}
     82 {num}in                 {yyTok = INS; return yyTok;}
     83 {num}pt                 {yyTok = PTS; return yyTok;}
     84 {num}pc                 {yyTok = PCS; return yyTok;}
     85 {num}deg                {yyTok = DEGS; return yyTok;}
     86 {num}rad                {yyTok = RADS; return yyTok;}
     87 {num}grad               {yyTok = GRADS; return yyTok;}
     88 {num}turn               {yyTok = TURNS; return yyTok;}
     89 {num}ms                 {yyTok = MSECS; return yyTok;}
     90 {num}s                  {yyTok = SECS; return yyTok;}
     91 {num}Hz                 {yyTok = HERZ; return yyTok;}
     92 {num}kHz                {yyTok = KHERZ; return yyTok;}
     93 {num}{ident}            {yyTok = DIMEN; return yyTok;}
     94 {num}%+                 {yyTok = PERCENTAGE; return yyTok;}
     95 {intnum}                {yyTok = INTEGER; return yyTok;}
     96 {num}                   {yyTok = FLOATTOKEN; return yyTok;}
     97 
     98 "not("                  {yyTok = NOTFUNCTION; return yyTok;}
     99 "url("{w}{string}{w}")" {yyTok = URI; return yyTok;}
    100 "url("{w}{url}{w}")"    {yyTok = URI; return yyTok;}
    101 "-webkit-var("{w}{ident}{w}")" { yyTok = VARCALL; return yyTok; }
    102 {ident}"("              {yyTok = FUNCTION; return yyTok;}
    103 
    104 U\+{range}              {yyTok = UNICODERANGE; return yyTok;}
    105 U\+{h}{1,6}-{h}{1,6}    {yyTok = UNICODERANGE; return yyTok;}
    106 
    107 <mediaquery>"{"         |
    108 <mediaquery>";"         {BEGIN(INITIAL); yyTok = *yytext; return yyTok; }
    109 .                       {yyTok = *yytext; return yyTok;}
    110 
    111 %%
    112