lexer grammar LessLexer;

NULL: 'null';

IN: 'in';

: ('%'|'px'|'cm'|'mm'|'in'|'pt'|'pc'|'em'|'ex'|'deg'|'rad'|'grad'|'ms'|'s'|'hz'|'khz')

;

Ellipsis: '...';

: AT BlockStart -> pushMode(IDENTIFY)

;

LPAREN : '(';

RPAREN : ')';

BlockStart : '{';

BlockEnd : '}';

LBRACK : '[';

RBRACK : ']';

GT : '>';

TIL : '~';

LT : '<';

COLON : ':';

SEMI : ';';

COMMA : ',';

DOT : '.';

DOLLAR : '$';

AT : '@';

PARENTREF : '&';

HASH : '#';

COLONCOLON : '::';

PLUS : '+';

TIMES : '*';

DIV : '/';

MINUS : '-';

PERC : '%';

EQEQ : '==';

GTEQ : '>=';

LTEQ : '<=';

NOTEQ : '!=';

EQ : '=';

PIPE_EQ : '|=';

TILD_EQ : '~=';

URL : 'url';

: URL LPAREN -> pushMode(URL_STARTED)

;

IMPORT : '@import';

MEDIA : '@media';

EXTEND : ':extend';

IMPORTANT : '!important';

ARGUMENTS : '@arguments';

REST : '@rest';

REFERENCE : 'reference';

INLINE : 'inline';

LESS : 'less';

CSS : 'css';

ONCE : 'once';

MULTIPLE: 'multiple';

WHEN : 'when';

NOT : 'not';

AND : 'and';

: (('_' | 'a'..'z'| 'A'..'Z' | '\u0100'..'\ufffe' )

('_' | '-' | 'a'..'z'| 'A'..'Z' | '\u0100'..'\ufffe' | '0'..'9')*

| '-' ('_' | 'a'..'z'| 'A'..'Z' | '\u0100'..'\ufffe' )

('_' | '-' | 'a'..'z'| 'A'..'Z' | '\u0100'..'\ufffe' | '0'..'9')*) -> pushMode(IDENTIFY)

;

fragment STRING

: '"' (~('"'|'\n'|'\r'))* '"'

| '\'' (~('\''|'\n'|'\r'))* '\''

;

: STRING

;

: '-' (('0'..'9')* '.')? ('0'..'9')+

| (('0'..'9')* '.')? ('0'..'9')+

;

: '#' ('0'..'9'|'a'..'f'|'A'..'F')+

;

: (' '|'\t'|'\n'|'\r'|'\r\n')+ -> skip

;

: '//'

(~('\n'|'\r'))* ('\n'|'\r'('\n')?) -> skip

;

: '/*' .*? '*/' -> skip

;

: COLOR

| CONVERT

| DATA_URI

| DEFAULT

| UNIT

| GET_UNIT

| SVG_GRADIENT

| ESCAPE

| E

| FORMAT

| REPLACE

| LENGTH

| EXTRACT

| CEIL

| FLOOR

| PERCENTAGE

| ROUND

| SQRT

| ABS

| SIN

| ASIN

| COS

| ACOS

| TAN

| ATAN

| PI

| POW

| MOD

| MIN

| MAX

| ISNUMBER

| ISSTRING

| ISCOLOR

| ISKEYWORD

| ISURL

| ISPIXEL

| ISEM

| ISPERCENTAGE

| ISUNIT

| RGB

| RGBA

| ARGB

| HSL

| HSLA

| HSV

| HSVA

| HUE

| SATURATION

| LIGHTNESS

| HSVHUE

| HSVSATURATION

| HSVVALUE

| RED

| GREEN

| BLUE

| ALPHA

| LUMA

| LUMINANCE

| SATURATE

| DESATURATE

| LIGHTEN

| DARKEN

| FADEIN

| FADEOUT

| FADE

| SPIN

| MIX

| GREYSCALE

| CONTRAST

| MULTIPLY

| SCREEN

| OVERLAY

| SOFTLIGHT

| HARDLIGHT

| DIFFERENCE

| EXCLUSION

| AVERAGE

| NEGATION

;

COLOR:'color';

CONVERT:'convert';

DATA_URI:'data-uri';

DEFAULT:'default';

UNIT:'unit';

GET_UNIT:'get-unit';

SVG_GRADIENT:'svg-gradient';

ESCAPE : 'escape';

E: 'e';

FORMAT: '%';

REPLACE : 'replace';

LENGTH: 'length';

EXTRACT: 'extract';

CEIL: 'ceil';

FLOOR: 'floor';

PERCENTAGE: 'percentage';

ROUND: 'round';

SQRT: 'sqrt';

ABS: 'abs';

SIN: 'sin';

ASIN: 'asin';

COS: 'cos';

ACOS: 'acos';

TAN: 'tan';

ATAN: 'atan';

PI: 'pi';

POW: 'pow';

MOD: 'mod';

MIN: 'min';

MAX: 'max';

ISNUMBER: 'isnumber';

ISSTRING: 'isstring';

ISCOLOR: 'iscolor';

ISKEYWORD: 'iskeyword';

ISURL: 'isurl';

ISPIXEL: 'ispixel';

ISEM: 'isem';

ISPERCENTAGE: 'ispercentage';

ISUNIT: 'isunit';

RGB: 'rgb';

RGBA: 'rgba';

ARGB: 'argb';

HSL: 'hsl';

HSLA: 'hsla';

HSV: 'hsv';

HSVA: 'hsva';

HUE: 'hue';

SATURATION: 'saturation';

LIGHTNESS: 'lightness';

HSVHUE: 'hsvhue';

HSVSATURATION: 'hsvsaturation';

HSVVALUE: 'hsvvalue';

RED: 'red';

GREEN: 'green';

BLUE: 'blue';

ALPHA: 'alpha';

LUMA: 'luma';

LUMINANCE: 'luminance';

SATURATE: 'saturate';

DESATURATE: 'desaturate';

LIGHTEN: 'lighten';

DARKEN: 'darken';

FADEIN: 'fadein';

FADEOUT: 'fadeout';

FADE: 'fade';

SPIN: 'spin';

MIX: 'mix';

GREYSCALE: 'greyscale';

CONTRAST: 'contrast';

MULTIPLY: 'multiply';

SCREEN: 'screen';

OVERLAY: 'overlay';

SOFTLIGHT: 'softlight';

HARDLIGHT: 'hardlight';

DIFFERENCE: 'difference';

EXCLUSION: 'exclusion';

AVERAGE: 'average';

NEGATION: 'negation';

mode URL_STARTED;

UrlEnd : RPAREN -> popMode;

Url : STRING | (~(')' | '\n' | '\r' | ';'))+;

mode IDENTIFY;

BlockStart_ID : BlockStart -> popMode, type(BlockStart);

SPACE : WS -> popMode, skip;

DOLLAR_ID : DOLLAR -> type(DOLLAR);

InterpolationStartAfter : InterpolationStart;

InterpolationEnd_ID : BlockEnd -> type(BlockEnd);

IdentifierAfter : Identifier;

Ellipsis_ID : Ellipsis -> popMode, type(Ellipsis);

DOT_ID : DOT -> popMode, type(DOT);

LPAREN_ID : LPAREN -> popMode, type(LPAREN);

RPAREN_ID : RPAREN -> popMode, type(RPAREN);

COLON_ID : COLON -> popMode, type(COLON);

COMMA_ID : COMMA -> popMode, type(COMMA);

SEMI_ID : SEMI -> popMode, type(SEMI);