初始化

uni_modules/UniDevTools/node_modules/licia/selector.js

@@ -0,0 +1,137 @@
+var trim = require('./trim');
+var each = require('./each');
+var identity = require('./identity');
+var map = require('./map');
+
+var whitespace = '[\\x20\\t\\r\\n\\f]';
+var identifier = '(?:\\\\[\\da-fA-F]{1,6}'.concat(
+    whitespace,
+    '?|\\\\[^\\r\\n\\f]|[\\w-]|[^\0-\\x7f])+'
+);
+var attributes = '\\['
+    .concat(whitespace, '*(')
+    .concat(identifier, ')(?:')
+    .concat(whitespace, '*([*^$|!~]?=)')
+    .concat(
+        whitespace,
+        '*(?:\'((?:\\\\.|[^\\\\\'])*)\'|"((?:\\\\.|[^\\\\"])*)"|('
+    )
+    .concat(identifier, '))|)')
+    .concat(whitespace, '*\\]');
+var pseudos = '::?('
+    .concat(
+        identifier,
+        ')(?:\\(((\'((?:\\\\.|[^\\\\\'])*)\'|"((?:\\\\.|[^\\\\"])*)")|((?:\\\\.|[^\\\\()[\\]]|'
+    )
+    .concat(attributes, ')*)|.*)\\)|)');
+var regComma = new RegExp('^'.concat(whitespace, '*,').concat(whitespace, '*'));
+var regCombinators = new RegExp(
+    '^'
+        .concat(whitespace, '*([>+~]|')
+        .concat(whitespace, ')')
+        .concat(whitespace, '*')
+);
+var matchExpr = {
+    id: {
+        reg: new RegExp('^#('.concat(identifier, ')')),
+        value: function(raw) {
+            return raw.slice(1);
+        },
+        toStr: function(value) {
+            return '#'.concat(value);
+        }
+    },
+    class: {
+        reg: new RegExp('^\\.('.concat(identifier, ')')),
+        value: function(raw) {
+            return raw.slice(1);
+        },
+        toStr: function(value) {
+            return '.'.concat(value);
+        }
+    },
+    tag: {
+        reg: new RegExp('^('.concat(identifier, '|[*])')),
+        value: identity
+    },
+    attribute: {
+        reg: new RegExp('^'.concat(attributes)),
+        value: function(raw) {
+            return raw.slice(1, raw.length - 1);
+        },
+        toStr: function(value) {
+            return '['.concat(value, ']');
+        }
+    },
+    pseudo: {
+        reg: new RegExp('^'.concat(pseudos)),
+        value: identity
+    }
+};
+each(matchExpr, function(item) {
+    if (!item.value) item.value = identity;
+    if (!item.toStr) item.toStr = identity;
+});
+function parse(selector) {
+    selector = trim(selector);
+    var groups = [];
+    var tokens;
+    var match;
+    var matched;
+    while (selector) {
+        if (!matched || (match = regComma.exec(selector))) {
+            if (match) {
+                selector = selector.slice(match[0].length);
+            }
+            tokens = [];
+            groups.push(tokens);
+        }
+        matched = false;
+        if ((match = regCombinators.exec(selector))) {
+            matched = match.shift();
+            selector = selector.slice(matched.length);
+            matched = trim(matched);
+            if (!matched) matched = ' ';
+            tokens.push({
+                value: matched,
+                type: 'combinator'
+            });
+        }
+        each(matchExpr, function(_ref, type) {
+            var reg = _ref.reg,
+                value = _ref.value;
+            if ((match = reg.exec(selector))) {
+                matched = match.shift();
+                selector = selector.slice(matched.length);
+                matched = trim(matched);
+                tokens.push({
+                    value: value(matched),
+                    type: type
+                });
+            }
+        });
+        if (!matched) {
+            break;
+        }
+    }
+    return groups;
+}
+function stringify(groups) {
+    return map(groups, function(group) {
+        group = map(group, function(_ref2) {
+            var type = _ref2.type,
+                value = _ref2.value;
+            if (type === 'combinator') {
+                return value === ' ' ? value : ' '.concat(value, ' ');
+            }
+            return matchExpr[type].toStr(value);
+        });
+        return group.join('');
+    }).join(', ');
+}
+exports = {
+    parse: parse,
+    stringify: stringify
+};
+
+module.exports = exports;