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gonzales.cssp.web.js
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gonzales.cssp.web.js
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var srcToCSSP = (function() {
var TokenType = {
StringSQ: 'StringSQ',
StringDQ: 'StringDQ',
CommentML: 'CommentML',
CommentSL: 'CommentSL',
Newline: 'Newline',
Space: 'Space',
Tab: 'Tab',
ExclamationMark: 'ExclamationMark', // !
QuotationMark: 'QuotationMark', // "
NumberSign: 'NumberSign', // #
DollarSign: 'DollarSign', // $
PercentSign: 'PercentSign', // %
Ampersand: 'Ampersand', // &
Apostrophe: 'Apostrophe', // '
LeftParenthesis: 'LeftParenthesis', // (
RightParenthesis: 'RightParenthesis', // )
Asterisk: 'Asterisk', // *
PlusSign: 'PlusSign', // +
Comma: 'Comma', // ,
HyphenMinus: 'HyphenMinus', // -
FullStop: 'FullStop', // .
Solidus: 'Solidus', // /
Colon: 'Colon', // :
Semicolon: 'Semicolon', // ;
LessThanSign: 'LessThanSign', // <
EqualsSign: 'EqualsSign', // =
GreaterThanSign: 'GreaterThanSign', // >
QuestionMark: 'QuestionMark', // ?
CommercialAt: 'CommercialAt', // @
LeftSquareBracket: 'LeftSquareBracket', // [
ReverseSolidus: 'ReverseSolidus', // \
RightSquareBracket: 'RightSquareBracket', // ]
CircumflexAccent: 'CircumflexAccent', // ^
LowLine: 'LowLine', // _
LeftCurlyBracket: 'LeftCurlyBracket', // {
VerticalLine: 'VerticalLine', // |
RightCurlyBracket: 'RightCurlyBracket', // }
Tilde: 'Tilde', // ~
Identifier: 'Identifier',
DecimalNumber: 'DecimalNumber'
};
var getTokens = (function() {
var Punctuation,
urlMode = false,
blockMode = 0;
Punctuation = {
' ': TokenType.Space,
'\n': TokenType.Newline,
'\r': TokenType.Newline,
'\t': TokenType.Tab,
'!': TokenType.ExclamationMark,
'"': TokenType.QuotationMark,
'#': TokenType.NumberSign,
'$': TokenType.DollarSign,
'%': TokenType.PercentSign,
'&': TokenType.Ampersand,
'\'': TokenType.Apostrophe,
'(': TokenType.LeftParenthesis,
')': TokenType.RightParenthesis,
'*': TokenType.Asterisk,
'+': TokenType.PlusSign,
',': TokenType.Comma,
'-': TokenType.HyphenMinus,
'.': TokenType.FullStop,
'/': TokenType.Solidus,
':': TokenType.Colon,
';': TokenType.Semicolon,
'<': TokenType.LessThanSign,
'=': TokenType.EqualsSign,
'>': TokenType.GreaterThanSign,
'?': TokenType.QuestionMark,
'@': TokenType.CommercialAt,
'[': TokenType.LeftSquareBracket,
// '\\': TokenType.ReverseSolidus,
']': TokenType.RightSquareBracket,
'^': TokenType.CircumflexAccent,
'_': TokenType.LowLine,
'{': TokenType.LeftCurlyBracket,
'|': TokenType.VerticalLine,
'}': TokenType.RightCurlyBracket,
'~': TokenType.Tilde
};
function isDecimalDigit(c) {
return '0123456789'.indexOf(c) >= 0;
}
function throwError(message) {
throw message;
}
var buffer = '',
tokens = [],
pos,
tn = 0,
ln = 1;
function _getTokens(s) {
if (!s) return [];
tokens = [];
var c, cn;
for (pos = 0; pos < s.length; pos++) {
c = s.charAt(pos);
cn = s.charAt(pos + 1);
if (c === '/' && cn === '*') {
parseMLComment(s);
} else if (!urlMode && c === '/' && cn === '/') {
if (blockMode > 0) parseIdentifier(s);
else parseSLComment(s);
} else if (c === '"' || c === "'") {
parseString(s, c);
} else if (c === ' ') {
parseSpaces(s)
} else if (c in Punctuation) {
pushToken(Punctuation[c], c);
if (c === '\n' || c === '\r') ln++;
if (c === ')') urlMode = false;
if (c === '{') blockMode++;
if (c === '}') blockMode--;
} else if (isDecimalDigit(c)) {
parseDecimalNumber(s);
} else {
parseIdentifier(s);
}
}
mark();
return tokens;
}
function pushToken(type, value) {
tokens.push({ tn: tn++, ln: ln, type: type, value: value });
}
function parseSpaces(s) {
var start = pos;
for (; pos < s.length; pos++) {
if (s.charAt(pos) !== ' ') break;
}
pushToken(TokenType.Space, s.substring(start, pos));
pos--;
}
function parseMLComment(s) {
var start = pos;
for (pos = pos + 2; pos < s.length; pos++) {
if (s.charAt(pos) === '*') {
if (s.charAt(pos + 1) === '/') {
pos++;
break;
}
}
}
pushToken(TokenType.CommentML, s.substring(start, pos + 1));
}
function parseSLComment(s) {
var start = pos;
for (pos = pos + 2; pos < s.length; pos++) {
if (s.charAt(pos) === '\n' || s.charAt(pos) === '\r') {
pos++;
break;
}
}
pushToken(TokenType.CommentSL, s.substring(start, pos));
pos--;
}
function parseString(s, q) {
var start = pos;
for (pos = pos + 1; pos < s.length; pos++) {
if (s.charAt(pos) === '\\') pos++;
else if (s.charAt(pos) === q) break;
}
pushToken(q === '"' ? TokenType.StringDQ : TokenType.StringSQ, s.substring(start, pos + 1));
}
function parseDecimalNumber(s) {
var start = pos;
for (; pos < s.length; pos++) {
if (!isDecimalDigit(s.charAt(pos))) break;
}
pushToken(TokenType.DecimalNumber, s.substring(start, pos));
pos--;
}
function parseIdentifier(s) {
var start = pos;
while (s.charAt(pos) === '/') pos++;
for (; pos < s.length; pos++) {
if (s.charAt(pos) === '\\') pos++;
else if (s.charAt(pos) in Punctuation) break;
}
var ident = s.substring(start, pos);
urlMode = urlMode || ident === 'url';
pushToken(TokenType.Identifier, ident);
pos--;
}
// ====================================
// second run
// ====================================
function mark() {
var ps = [], // Parenthesis
sbs = [], // SquareBracket
cbs = [], // CurlyBracket
t;
for (var i = 0; i < tokens.length; i++) {
t = tokens[i];
switch(t.type) {
case TokenType.LeftParenthesis:
ps.push(i);
break;
case TokenType.RightParenthesis:
if (ps.length) {
t.left = ps.pop();
tokens[t.left].right = i;
}
break;
case TokenType.LeftSquareBracket:
sbs.push(i);
break;
case TokenType.RightSquareBracket:
if (sbs.length) {
t.left = sbs.pop();
tokens[t.left].right = i;
}
break;
case TokenType.LeftCurlyBracket:
cbs.push(i);
break;
case TokenType.RightCurlyBracket:
if (cbs.length) {
t.left = cbs.pop();
tokens[t.left].right = i;
}
break;
}
}
}
return function(s) {
return _getTokens(s);
};
}());
// version: 1.0.0
var getCSSPAST = (function() {
var tokens,
pos,
failLN = 0,
currentBlockLN = 0,
needInfo = false;
var CSSPNodeType,
CSSLevel,
CSSPRules;
CSSPNodeType = {
IdentType: 'ident',
AtkeywordType: 'atkeyword',
StringType: 'string',
ShashType: 'shash',
VhashType: 'vhash',
NumberType: 'number',
PercentageType: 'percentage',
DimensionType: 'dimension',
CdoType: 'cdo',
CdcType: 'cdc',
DecldelimType: 'decldelim',
SType: 's',
AttrselectorType: 'attrselector',
AttribType: 'attrib',
NthType: 'nth',
NthselectorType: 'nthselector',
NamespaceType: 'namespace',
ClazzType: 'clazz',
PseudoeType: 'pseudoe',
PseudocType: 'pseudoc',
DelimType: 'delim',
StylesheetType: 'stylesheet',
AtrulebType: 'atruleb',
AtrulesType: 'atrules',
AtrulerqType: 'atrulerq',
AtrulersType: 'atrulers',
AtrulerType: 'atruler',
BlockType: 'block',
RulesetType: 'ruleset',
CombinatorType: 'combinator',
SimpleselectorType: 'simpleselector',
SelectorType: 'selector',
DeclarationType: 'declaration',
PropertyType: 'property',
ImportantType: 'important',
UnaryType: 'unary',
OperatorType: 'operator',
BracesType: 'braces',
ValueType: 'value',
ProgidType: 'progid',
FiltervType: 'filterv',
FilterType: 'filter',
CommentType: 'comment',
UriType: 'uri',
RawType: 'raw',
FunctionBodyType: 'functionBody',
FunktionType: 'funktion',
FunctionExpressionType: 'functionExpression',
UnknownType: 'unknown'
};
CSSPRules = {
'ident': function() { if (checkIdent(pos)) return getIdent() },
'atkeyword': function() { if (checkAtkeyword(pos)) return getAtkeyword() },
'string': function() { if (checkString(pos)) return getString() },
'shash': function() { if (checkShash(pos)) return getShash() },
'vhash': function() { if (checkVhash(pos)) return getVhash() },
'number': function() { if (checkNumber(pos)) return getNumber() },
'percentage': function() { if (checkPercentage(pos)) return getPercentage() },
'dimension': function() { if (checkDimension(pos)) return getDimension() },
// 'cdo': function() { if (checkCDO()) return getCDO() },
// 'cdc': function() { if (checkCDC()) return getCDC() },
'decldelim': function() { if (checkDecldelim(pos)) return getDecldelim() },
's': function() { if (checkS(pos)) return getS() },
'attrselector': function() { if (checkAttrselector(pos)) return getAttrselector() },
'attrib': function() { if (checkAttrib(pos)) return getAttrib() },
'nth': function() { if (checkNth(pos)) return getNth() },
'nthselector': function() { if (checkNthselector(pos)) return getNthselector() },
'namespace': function() { if (checkNamespace(pos)) return getNamespace() },
'clazz': function() { if (checkClazz(pos)) return getClazz() },
'pseudoe': function() { if (checkPseudoe(pos)) return getPseudoe() },
'pseudoc': function() { if (checkPseudoc(pos)) return getPseudoc() },
'delim': function() { if (checkDelim(pos)) return getDelim() },
'stylesheet': function() { if (checkStylesheet(pos)) return getStylesheet() },
'atruleb': function() { if (checkAtruleb(pos)) return getAtruleb() },
'atrules': function() { if (checkAtrules(pos)) return getAtrules() },
'atrulerq': function() { if (checkAtrulerq(pos)) return getAtrulerq() },
'atrulers': function() { if (checkAtrulers(pos)) return getAtrulers() },
'atruler': function() { if (checkAtruler(pos)) return getAtruler() },
'block': function() { if (checkBlock(pos)) return getBlock() },
'ruleset': function() { if (checkRuleset(pos)) return getRuleset() },
'combinator': function() { if (checkCombinator(pos)) return getCombinator() },
'simpleselector': function() { if (checkSimpleselector(pos)) return getSimpleSelector() },
'selector': function() { if (checkSelector(pos)) return getSelector() },
'declaration': function() { if (checkDeclaration(pos)) return getDeclaration() },
'property': function() { if (checkProperty(pos)) return getProperty() },
'important': function() { if (checkImportant(pos)) return getImportant() },
'unary': function() { if (checkUnary(pos)) return getUnary() },
'operator': function() { if (checkOperator(pos)) return getOperator() },
'braces': function() { if (checkBraces(pos)) return getBraces() },
'value': function() { if (checkValue(pos)) return getValue() },
'progid': function() { if (checkProgid(pos)) return getProgid() },
'filterv': function() { if (checkFilterv(pos)) return getFilterv() },
'filter': function() { if (checkFilter(pos)) return getFilter() },
'comment': function() { if (checkComment(pos)) return getComment() },
'uri': function() { if (checkUri(pos)) return getUri() },
'raw': function() { if (checkRaw(pos)) return getRaw() },
'funktion': function() { if (checkFunktion(pos)) return getFunktion() },
'functionExpression': function() { if (checkFunctionExpression(pos)) return getFunctionExpression() },
'unknown': function() { if (checkUnknown(pos)) return getUnknown() }
};
function fail(token) {
if (token && token.ln > failLN) failLN = token.ln;
}
function throwError() {
console.error('Please check the validity of the CSS block starting from the line #' + currentBlockLN);
if (process) process.exit(1);
throw new Error();
}
function _getAST(_tokens, rule, _needInfo) {
tokens = _tokens;
needInfo = _needInfo;
pos = 0;
markSC();
return rule ? CSSPRules[rule]() : CSSPRules['stylesheet']();
}
//any = braces | string | percentage | dimension | number | uri | functionExpression | funktion | ident | unary
function checkAny(_i) {
return checkBraces(_i) ||
checkString(_i) ||
checkPercentage(_i) ||
checkDimension(_i) ||
checkNumber(_i) ||
checkUri(_i) ||
checkFunctionExpression(_i) ||
checkFunktion(_i) ||
checkIdent(_i) ||
checkUnary(_i);
}
function getAny() {
if (checkBraces(pos)) return getBraces();
else if (checkString(pos)) return getString();
else if (checkPercentage(pos)) return getPercentage();
else if (checkDimension(pos)) return getDimension();
else if (checkNumber(pos)) return getNumber();
else if (checkUri(pos)) return getUri();
else if (checkFunctionExpression(pos)) return getFunctionExpression();
else if (checkFunktion(pos)) return getFunktion();
else if (checkIdent(pos)) return getIdent();
else if (checkUnary(pos)) return getUnary();
}
//atkeyword = '@' ident:x -> [#atkeyword, x]
function checkAtkeyword(_i) {
var l;
if (tokens[_i++].type !== TokenType.CommercialAt) return fail(tokens[_i - 1]);
if (l = checkIdent(_i)) return l + 1;
return fail(tokens[_i]);
}
function getAtkeyword() {
var startPos = pos;
pos++;
return needInfo?
[{ ln: tokens[startPos].ln }, CSSPNodeType.AtkeywordType, getIdent()]:
[CSSPNodeType.AtkeywordType, getIdent()];
}
//attrib = '[' sc*:s0 ident:x sc*:s1 attrselector:a sc*:s2 (ident | string):y sc*:s3 ']' -> this.concat([#attrib], s0, [x], s1, [a], s2, [y], s3)
// | '[' sc*:s0 ident:x sc*:s1 ']' -> this.concat([#attrib], s0, [x], s1),
function checkAttrib(_i) {
if (tokens[_i].type !== TokenType.LeftSquareBracket) return fail(tokens[_i]);
if (!tokens[_i].right) return fail(tokens[_i]);
return tokens[_i].right - _i + 1;
}
function checkAttrib1(_i) {
var start = _i;
_i++;
var l = checkSC(_i); // s0
if (l) _i += l;
if (l = checkIdent(_i)) _i += l; // x
else return fail(tokens[_i]);
if (l = checkSC(_i)) _i += l; // s1
if (l = checkAttrselector(_i)) _i += l; // a
else return fail(tokens[_i]);
if (l = checkSC(_i)) _i += l; // s2
if ((l = checkIdent(_i)) || (l = checkString(_i))) _i += l; // y
else return fail(tokens[_i]);
if (l = checkSC(_i)) _i += l; // s3
if (tokens[_i].type === TokenType.RightSquareBracket) return _i - start;
return fail(tokens[_i]);
}
function getAttrib1() {
var startPos = pos;
pos++;
var a = (needInfo? [{ ln: tokens[startPos].ln }, CSSPNodeType.AttribType] : [CSSPNodeType.AttribType])
.concat(getSC())
.concat([getIdent()])
.concat(getSC())
.concat([getAttrselector()])
.concat(getSC())
.concat([checkString(pos)? getString() : getIdent()])
.concat(getSC());
pos++;
return a;
}
function checkAttrib2(_i) {
var start = _i;
_i++;
var l = checkSC(_i);
if (l) _i += l;
if (l = checkIdent(_i)) _i += l;
if (l = checkSC(_i)) _i += l;
if (tokens[_i].type === TokenType.RightSquareBracket) return _i - start;
return fail(tokens[_i]);
}
function getAttrib2() {
var startPos = pos;
pos++;
var a = (needInfo? [{ ln: tokens[startPos].ln }, CSSPNodeType.AttribType] : [CSSPNodeType.AttribType])
.concat(getSC())
.concat([getIdent()])
.concat(getSC());
pos++;
return a;
}
function getAttrib() {
if (checkAttrib1(pos)) return getAttrib1();
if (checkAttrib2(pos)) return getAttrib2();
}
//attrselector = (seq('=') | seq('~=') | seq('^=') | seq('$=') | seq('*=') | seq('|=')):x -> [#attrselector, x]
function checkAttrselector(_i) {
if (tokens[_i].type === TokenType.EqualsSign) return 1;
if (tokens[_i].type === TokenType.VerticalLine && (!tokens[_i + 1] || tokens[_i + 1].type !== TokenType.EqualsSign)) return 1;
if (!tokens[_i + 1] || tokens[_i + 1].type !== TokenType.EqualsSign) return fail(tokens[_i]);
switch(tokens[_i].type) {
case TokenType.Tilde:
case TokenType.CircumflexAccent:
case TokenType.DollarSign:
case TokenType.Asterisk:
case TokenType.VerticalLine:
return 2;
}
return fail(tokens[_i]);
}
function getAttrselector() {
var startPos = pos,
s = tokens[pos++].value;
if (tokens[pos] && tokens[pos].type === TokenType.EqualsSign) s += tokens[pos++].value;
return needInfo?
[{ ln: tokens[startPos].ln }, CSSPNodeType.AttrselectorType, s] :
[CSSPNodeType.AttrselectorType, s];
}
//atrule = atruler | atruleb | atrules
function checkAtrule(_i) {
var start = _i,
l;
if (tokens[start].atrule_l !== undefined) return tokens[start].atrule_l;
if (l = checkAtruler(_i)) tokens[_i].atrule_type = 1;
else if (l = checkAtruleb(_i)) tokens[_i].atrule_type = 2;
else if (l = checkAtrules(_i)) tokens[_i].atrule_type = 3;
else return fail(tokens[start]);
tokens[start].atrule_l = l;
return l;
}
function getAtrule() {
switch (tokens[pos].atrule_type) {
case 1: return getAtruler();
case 2: return getAtruleb();
case 3: return getAtrules();
}
}
//atruleb = atkeyword:ak tset*:ap block:b -> this.concat([#atruleb, ak], ap, [b])
function checkAtruleb(_i) {
var start = _i,
l;
if (l = checkAtkeyword(_i)) _i += l;
else return fail(tokens[_i]);
if (l = checkTsets(_i)) _i += l;
if (l = checkBlock(_i)) _i += l;
else return fail(tokens[_i]);
return _i - start;
}
function getAtruleb() {
return (needInfo?
[{ ln: tokens[pos].ln }, CSSPNodeType.AtrulebType, getAtkeyword()] :
[CSSPNodeType.AtrulebType, getAtkeyword()])
.concat(getTsets())
.concat([getBlock()]);
}
//atruler = atkeyword:ak atrulerq:x '{' atrulers:y '}' -> [#atruler, ak, x, y]
function checkAtruler(_i) {
var start = _i,
l;
if (l = checkAtkeyword(_i)) _i += l;
else return fail(tokens[_i]);
if (l = checkAtrulerq(_i)) _i += l;
if (_i < tokens.length && tokens[_i].type === TokenType.LeftCurlyBracket) _i++;
else return fail(tokens[_i]);
if (l = checkAtrulers(_i)) _i += l;
if (_i < tokens.length && tokens[_i].type === TokenType.RightCurlyBracket) _i++;
else return fail(tokens[_i]);
return _i - start;
}
function getAtruler() {
var atruler = needInfo?
[{ ln: tokens[pos].ln }, CSSPNodeType.AtrulerType, getAtkeyword(), getAtrulerq()] :
[CSSPNodeType.AtrulerType, getAtkeyword(), getAtrulerq()];
pos++;
atruler.push(getAtrulers());
pos++;
return atruler;
}
//atrulerq = tset*:ap -> [#atrulerq].concat(ap)
function checkAtrulerq(_i) {
return checkTsets(_i);
}
function getAtrulerq() {
return (needInfo? [{ ln: tokens[pos].ln }, CSSPNodeType.AtrulerqType] : [CSSPNodeType.AtrulerqType]).concat(getTsets());
}
//atrulers = sc*:s0 ruleset*:r sc*:s1 -> this.concat([#atrulers], s0, r, s1)
function checkAtrulers(_i) {
var start = _i,
l;
if (l = checkSC(_i)) _i += l;
while ((l = checkRuleset(_i)) || (l = checkAtrule(_i)) || (l = checkSC(_i))) {
_i += l;
}
tokens[_i].atrulers_end = 1;
if (l = checkSC(_i)) _i += l;
return _i - start;
}
function getAtrulers() {
var atrulers = (needInfo? [{ ln: tokens[pos].ln }, CSSPNodeType.AtrulersType] : [CSSPNodeType.AtrulersType]).concat(getSC()),
x;
while (!tokens[pos].atrulers_end) {
if (checkSC(pos)) {
atrulers = atrulers.concat(getSC());
} else if (checkRuleset(pos)) {
atrulers.push(getRuleset());
} else {
atrulers.push(getAtrule());
}
}
return atrulers.concat(getSC());
}
//atrules = atkeyword:ak tset*:ap ';' -> this.concat([#atrules, ak], ap)
function checkAtrules(_i) {
var start = _i,
l;
if (l = checkAtkeyword(_i)) _i += l;
else return fail(tokens[_i]);
if (l = checkTsets(_i)) _i += l;
if (_i >= tokens.length) return _i - start;
if (tokens[_i].type === TokenType.Semicolon) _i++;
else return fail(tokens[_i]);
return _i - start;
}
function getAtrules() {
var atrules = (needInfo? [{ ln: tokens[pos].ln }, CSSPNodeType.AtrulesType, getAtkeyword()] : [CSSPNodeType.AtrulesType, getAtkeyword()]).concat(getTsets());
pos++;
return atrules;
}
//block = '{' blockdecl*:x '}' -> this.concatContent([#block], x)
function checkBlock(_i) {
if (_i < tokens.length && tokens[_i].type === TokenType.LeftCurlyBracket) return tokens[_i].right - _i + 1;
return fail(tokens[_i]);
}
function getBlock() {
var block = needInfo? [{ ln: tokens[pos].ln }, CSSPNodeType.BlockType] : [CSSPNodeType.BlockType],
end = tokens[pos].right;
pos++;
while (pos < end) {
if (checkBlockdecl(pos)) block = block.concat(getBlockdecl());
else throwError();
}
pos = end + 1;
return block;
}
//blockdecl = sc*:s0 (filter | declaration):x decldelim:y sc*:s1 -> this.concat(s0, [x], [y], s1)
// | sc*:s0 (filter | declaration):x sc*:s1 -> this.concat(s0, [x], s1)
// | sc*:s0 decldelim:x sc*:s1 -> this.concat(s0, [x], s1)
// | sc+:s0 -> s0
function checkBlockdecl(_i) {
var l;
if (l = _checkBlockdecl0(_i)) tokens[_i].bd_type = 1;
else if (l = _checkBlockdecl1(_i)) tokens[_i].bd_type = 2;
else if (l = _checkBlockdecl2(_i)) tokens[_i].bd_type = 3;
else if (l = _checkBlockdecl3(_i)) tokens[_i].bd_type = 4;
else return fail(tokens[_i]);
return l;
}
function getBlockdecl() {
switch (tokens[pos].bd_type) {
case 1: return _getBlockdecl0();
case 2: return _getBlockdecl1();
case 3: return _getBlockdecl2();
case 4: return _getBlockdecl3();
}
}
//sc*:s0 (filter | declaration):x decldelim:y sc*:s1 -> this.concat(s0, [x], [y], s1)
function _checkBlockdecl0(_i) {
var start = _i,
l;
if (l = checkSC(_i)) _i += l;
if (l = checkFilter(_i)) {
tokens[_i].bd_filter = 1;
_i += l;
} else if (l = checkDeclaration(_i)) {
tokens[_i].bd_decl = 1;
_i += l;
} else return fail(tokens[_i]);
if (_i < tokens.length && (l = checkDecldelim(_i))) _i += l;
else return fail(tokens[_i]);
if (l = checkSC(_i)) _i += l;
return _i - start;
}
function _getBlockdecl0() {
return getSC()
.concat([tokens[pos].bd_filter? getFilter() : getDeclaration()])
.concat([getDecldelim()])
.concat(getSC());
}
//sc*:s0 (filter | declaration):x sc*:s1 -> this.concat(s0, [x], s1)
function _checkBlockdecl1(_i) {
var start = _i,
l;
if (l = checkSC(_i)) _i += l;
if (l = checkFilter(_i)) {
tokens[_i].bd_filter = 1;
_i += l;
} else if (l = checkDeclaration(_i)) {
tokens[_i].bd_decl = 1;
_i += l;
} else return fail(tokens[_i]);
if (l = checkSC(_i)) _i += l;
return _i - start;
}
function _getBlockdecl1() {
return getSC()
.concat([tokens[pos].bd_filter? getFilter() : getDeclaration()])
.concat(getSC());
}
//sc*:s0 decldelim:x sc*:s1 -> this.concat(s0, [x], s1)
function _checkBlockdecl2(_i) {
var start = _i,
l;
if (l = checkSC(_i)) _i += l;
if (l = checkDecldelim(_i)) _i += l;
else return fail(tokens[_i]);
if (l = checkSC(_i)) _i += l;
return _i - start;
}
function _getBlockdecl2() {
return getSC()
.concat([getDecldelim()])
.concat(getSC());
}
//sc+:s0 -> s0
function _checkBlockdecl3(_i) {
return checkSC(_i);
}
function _getBlockdecl3() {
return getSC();
}
//braces = '(' tset*:x ')' -> this.concat([#braces, '(', ')'], x)
// | '[' tset*:x ']' -> this.concat([#braces, '[', ']'], x)
function checkBraces(_i) {
if (_i >= tokens.length ||
(tokens[_i].type !== TokenType.LeftParenthesis &&
tokens[_i].type !== TokenType.LeftSquareBracket)
) return fail(tokens[_i]);
return tokens[_i].right - _i + 1;
}
function getBraces() {
var startPos = pos,
left = pos,
right = tokens[pos].right;
pos++;
var tsets = getTsets();
pos++;
return needInfo?
[{ ln: tokens[startPos].ln }, CSSPNodeType.BracesType, tokens[left].value, tokens[right].value].concat(tsets) :
[CSSPNodeType.BracesType, tokens[left].value, tokens[right].value].concat(tsets);
}
function checkCDC(_i) {}
function checkCDO(_i) {}
// node: Clazz
function checkClazz(_i) {
var l;
if (tokens[_i].clazz_l) return tokens[_i].clazz_l;
if (tokens[_i].type === TokenType.FullStop) {
if (l = checkIdent(_i + 1)) {
tokens[_i].clazz_l = l + 1;
return l + 1;
}
}
return fail(tokens[_i]);
}
function getClazz() {
var startPos = pos;
pos++;
return needInfo?
[{ ln: tokens[startPos].ln }, CSSPNodeType.ClazzType, getIdent()] :
[CSSPNodeType.ClazzType, getIdent()];
}
// node: Combinator
function checkCombinator(_i) {
if (tokens[_i].type === TokenType.PlusSign ||
tokens[_i].type === TokenType.GreaterThanSign ||
tokens[_i].type === TokenType.Tilde) return 1;
return fail(tokens[_i]);
}
function getCombinator() {
return needInfo?
[{ ln: tokens[pos].ln }, CSSPNodeType.CombinatorType, tokens[pos++].value] :
[CSSPNodeType.CombinatorType, tokens[pos++].value];
}
// node: Comment
function checkComment(_i) {
if (tokens[_i].type === TokenType.CommentML) return 1;
return fail(tokens[_i]);
}
function getComment() {
var startPos = pos,
s = tokens[pos].value.substring(2),
l = s.length;
if (s.charAt(l - 2) === '*' && s.charAt(l - 1) === '/') s = s.substring(0, l - 2);
pos++;
return needInfo?
[{ ln: tokens[startPos].ln }, CSSPNodeType.CommentType, s] :
[CSSPNodeType.CommentType, s];
}
// declaration = property:x ':' value:y -> [#declaration, x, y]
function checkDeclaration(_i) {
var start = _i,
l;
if (l = checkProperty(_i)) _i += l;
else return fail(tokens[_i]);
if (_i < tokens.length && tokens[_i].type === TokenType.Colon) _i++;
else return fail(tokens[_i]);
if (l = checkValue(_i)) _i += l;
else return fail(tokens[_i]);
return _i - start;
}
function getDeclaration() {
var declaration = needInfo?
[{ ln: tokens[pos].ln }, CSSPNodeType.DeclarationType, getProperty()] :
[CSSPNodeType.DeclarationType, getProperty()];
pos++;
declaration.push(getValue());
return declaration;
}
// node: Decldelim
function checkDecldelim(_i) {