var emptyCharacter = ''; var Breaks = require('../options/format').Breaks; var Spaces = require('../options/format').Spaces; var Marker = require('../tokenizer/marker'); var Token = require('../tokenizer/token'); function supportsAfterClosingBrace(token) { return token[1][1] == 'background' || token[1][1] == 'transform' || token[1][1] == 'src'; } function afterClosingBrace(token, valueIndex) { return token[valueIndex][1][token[valueIndex][1].length - 1] == Marker.CLOSE_ROUND_BRACKET; } function afterComma(token, valueIndex) { return token[valueIndex][1] == Marker.COMMA; } function afterSlash(token, valueIndex) { return token[valueIndex][1] == Marker.FORWARD_SLASH; } function beforeComma(token, valueIndex) { return token[valueIndex + 1] && token[valueIndex + 1][1] == Marker.COMMA; } function beforeSlash(token, valueIndex) { return token[valueIndex + 1] && token[valueIndex + 1][1] == Marker.FORWARD_SLASH; } function inFilter(token) { return token[1][1] == 'filter' || token[1][1] == '-ms-filter'; } function disallowsSpace(context, token, valueIndex) { return !context.spaceAfterClosingBrace && supportsAfterClosingBrace(token) && afterClosingBrace(token, valueIndex) || beforeSlash(token, valueIndex) || afterSlash(token, valueIndex) || beforeComma(token, valueIndex) || afterComma(token, valueIndex); } function rules(context, tokens) { var store = context.store; for (var i = 0, l = tokens.length; i < l; i++) { store(context, tokens[i]); if (i < l - 1) { store(context, comma(context)); } } } function body(context, tokens) { var lastPropertyAt = lastPropertyIndex(tokens); for (var i = 0, l = tokens.length; i < l; i++) { property(context, tokens, i, lastPropertyAt); } } function lastPropertyIndex(tokens) { var index = tokens.length - 1; for (; index >= 0; index--) { if (tokens[index][0] != Token.COMMENT) { break; } } return index; } function property(context, tokens, position, lastPropertyAt) { var store = context.store; var token = tokens[position]; var propertyValue = token[2]; var isPropertyBlock = propertyValue && propertyValue[0] === Token.PROPERTY_BLOCK; var needsSemicolon; if ( context.format ) { if ( context.format.semicolonAfterLastProperty || isPropertyBlock ) { needsSemicolon = true; } else if ( position < lastPropertyAt ) { needsSemicolon = true; } else { needsSemicolon = false; } } else { needsSemicolon = position < lastPropertyAt || isPropertyBlock; } var isLast = position === lastPropertyAt; switch (token[0]) { case Token.AT_RULE: store(context, token); store(context, semicolon(context, Breaks.AfterProperty, false)); break; case Token.AT_RULE_BLOCK: rules(context, token[1]); store(context, openBrace(context, Breaks.AfterRuleBegins, true)); body(context, token[2]); store(context, closeBrace(context, Breaks.AfterRuleEnds, false, isLast)); break; case Token.COMMENT: store(context, token); store(context, breakFor(context, Breaks.AfterComment) + context.indentWith); break; case Token.PROPERTY: store(context, token[1]); store(context, colon(context)); if (propertyValue) { value(context, token); } store(context, needsSemicolon ? semicolon(context, Breaks.AfterProperty, isLast) : emptyCharacter); break; case Token.RAW: store(context, token); } } function value(context, token) { var store = context.store; var j, m; if (token[2][0] == Token.PROPERTY_BLOCK) { store(context, openBrace(context, Breaks.AfterBlockBegins, false)); body(context, token[2][1]); store(context, closeBrace(context, Breaks.AfterBlockEnds, false, true)); } else { for (j = 2, m = token.length; j < m; j++) { store(context, token[j]); if (j < m - 1 && (inFilter(token) || !disallowsSpace(context, token, j))) { store(context, Marker.SPACE); } } } } function breakFor(context, where) { return context.format ? context.format.breaks[where] : emptyCharacter; } function allowsSpace(context, where) { return context.format && context.format.spaces[where]; } function openBrace(context, where, needsPrefixSpace) { if (context.format) { context.indentBy += context.format.indentBy; context.indentWith = context.format.indentWith.repeat(context.indentBy); return (needsPrefixSpace && allowsSpace(context, Spaces.BeforeBlockBegins) ? Marker.SPACE : emptyCharacter) + Marker.OPEN_CURLY_BRACKET + breakFor(context, where) + context.indentWith; } else { return Marker.OPEN_CURLY_BRACKET; } } function closeBrace(context, where, beforeBlockEnd, isLast) { if (context.format) { context.indentBy -= context.format.indentBy; context.indentWith = context.format.indentWith.repeat(context.indentBy); return (beforeBlockEnd ? breakFor(context, Breaks.BeforeBlockEnds) : breakFor(context, Breaks.AfterProperty)) + context.indentWith + Marker.CLOSE_CURLY_BRACKET + (isLast ? emptyCharacter : breakFor(context, where) + context.indentWith); } else { return Marker.CLOSE_CURLY_BRACKET; } } function colon(context) { return context.format ? Marker.COLON + (allowsSpace(context, Spaces.BeforeValue) ? Marker.SPACE : emptyCharacter) : Marker.COLON; } function semicolon(context, where, isLast) { return context.format ? Marker.SEMICOLON + (isLast ? emptyCharacter : (breakFor(context, where) + context.indentWith)) : Marker.SEMICOLON; } function comma(context) { return context.format ? Marker.COMMA + breakFor(context, Breaks.BetweenSelectors) + context.indentWith : Marker.COMMA; } function all(context, tokens) { var store = context.store; var token; var isLast; var i, l; for (i = 0, l = tokens.length; i < l; i++) { token = tokens[i]; isLast = i == l - 1; switch (token[0]) { case Token.AT_RULE: store(context, token); store(context, semicolon(context, Breaks.AfterAtRule, isLast)); break; case Token.AT_RULE_BLOCK: rules(context, token[1]); store(context, openBrace(context, Breaks.AfterRuleBegins, true)); body(context, token[2]); store(context, closeBrace(context, Breaks.AfterRuleEnds, false, isLast)); break; case Token.NESTED_BLOCK: rules(context, token[1]); store(context, openBrace(context, Breaks.AfterBlockBegins, true)); all(context, token[2]); store(context, closeBrace(context, Breaks.AfterBlockEnds, true, isLast)); break; case Token.COMMENT: store(context, token); store(context, breakFor(context, Breaks.AfterComment) + context.indentWith); break; case Token.RAW: store(context, token); break; case Token.RULE: rules(context, token[1]); store(context, openBrace(context, Breaks.AfterRuleBegins, true)); body(context, token[2]); store(context, closeBrace(context, Breaks.AfterRuleEnds, false, isLast)); break; } } } module.exports = { all: all, body: body, property: property, rules: rules, value: value };