12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394959697 |
- 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);
- }
- 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.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;
- }
|