| New file |
| | |
| | | const cfg = require('./config.js'), |
| | | isLetter = c => (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'); |
| | | |
| | | function CssHandler(tagStyle) { |
| | | var styles = Object.assign(Object.create(null), cfg.userAgentStyles); |
| | | for (var item in tagStyle) |
| | | styles[item] = (styles[item] ? styles[item] + ';' : '') + tagStyle[item]; |
| | | this.styles = styles; |
| | | } |
| | | CssHandler.prototype.getStyle = function(data) { |
| | | this.styles = new parser(data, this.styles).parse(); |
| | | } |
| | | CssHandler.prototype.match = function(name, attrs) { |
| | | var tmp, matched = (tmp = this.styles[name]) ? tmp + ';' : ''; |
| | | if (attrs.class) { |
| | | var items = attrs.class.split(' '); |
| | | for (var i = 0, item; item = items[i]; i++) |
| | | if (tmp = this.styles['.' + item]) |
| | | matched += tmp + ';'; |
| | | } |
| | | if (tmp = this.styles['#' + attrs.id]) |
| | | matched += tmp + ';'; |
| | | return matched; |
| | | } |
| | | module.exports = CssHandler; |
| | | |
| | | function parser(data, init) { |
| | | this.data = data; |
| | | this.floor = 0; |
| | | this.i = 0; |
| | | this.list = []; |
| | | this.res = init; |
| | | this.state = this.Space; |
| | | } |
| | | parser.prototype.parse = function() { |
| | | for (var c; c = this.data[this.i]; this.i++) |
| | | this.state(c); |
| | | return this.res; |
| | | } |
| | | parser.prototype.section = function() { |
| | | return this.data.substring(this.start, this.i); |
| | | } |
| | | // 状态机 |
| | | parser.prototype.Space = function(c) { |
| | | if (c == '.' || c == '#' || isLetter(c)) { |
| | | this.start = this.i; |
| | | this.state = this.Name; |
| | | } else if (c == '/' && this.data[this.i + 1] == '*') |
| | | this.Comment(); |
| | | else if (!cfg.blankChar[c] && c != ';') |
| | | this.state = this.Ignore; |
| | | } |
| | | parser.prototype.Comment = function() { |
| | | this.i = this.data.indexOf('*/', this.i) + 1; |
| | | if (!this.i) this.i = this.data.length; |
| | | this.state = this.Space; |
| | | } |
| | | parser.prototype.Ignore = function(c) { |
| | | if (c == '{') this.floor++; |
| | | else if (c == '}' && !--this.floor) { |
| | | this.list = []; |
| | | this.state = this.Space; |
| | | } |
| | | } |
| | | parser.prototype.Name = function(c) { |
| | | if (cfg.blankChar[c]) { |
| | | this.list.push(this.section()); |
| | | this.state = this.NameSpace; |
| | | } else if (c == '{') { |
| | | this.list.push(this.section()); |
| | | this.Content(); |
| | | } else if (c == ',') { |
| | | this.list.push(this.section()); |
| | | this.Comma(); |
| | | } else if (!isLetter(c) && (c < '0' || c > '9') && c != '-' && c != '_') |
| | | this.state = this.Ignore; |
| | | } |
| | | parser.prototype.NameSpace = function(c) { |
| | | if (c == '{') this.Content(); |
| | | else if (c == ',') this.Comma(); |
| | | else if (!cfg.blankChar[c]) this.state = this.Ignore; |
| | | } |
| | | parser.prototype.Comma = function() { |
| | | while (cfg.blankChar[this.data[++this.i]]); |
| | | if (this.data[this.i] == '{') this.Content(); |
| | | else { |
| | | this.start = this.i--; |
| | | this.state = this.Name; |
| | | } |
| | | } |
| | | parser.prototype.Content = function() { |
| | | this.start = ++this.i; |
| | | if ((this.i = this.data.indexOf('}', this.i)) == -1) this.i = this.data.length; |
| | | var content = this.section(); |
| | | for (var i = 0, item; item = this.list[i++];) |
| | | if (this.res[item]) this.res[item] += ';' + content; |
| | | else this.res[item] = content; |
| | | this.list = []; |
| | | this.state = this.Space; |
| | | } |