seajs-2.2.1依赖解析的一处bug

require('tmpl', '<%var a=12/3;%><div><%=a%></div>');
require('page', function(require, exports, module){
  console.log('page');
})

var REQUIRE_RE = /"(?:\\"|[^"])*"|'(?:\\'|[^'])*'|\/\*[\S\s]*?\*\/|\/(?:\\\/|[^\/\r\n])+\/(?=[^\/])|\/\/.*|\.\s*require|(?:^|[^$])\brequire\s*\(\s*(["'])(.+?)\1\s*\)/g
var SLASH_RE = /\\\\/g

function parseDependencies(code) {
  var ret = []

  code.replace(SLASH_RE, "")
      .replace(REQUIRE_RE, function(m, m1, m2) {
        if (m2) {
          ret.push(m2)
        }
      })

  return ret
}

function parseDependencies(s) {
  if(s.indexOf('require') == -1) {
    return []
  }
  var index = 0, peek, length = s.length, isReg = 1, modName = 0, parentheseState = 0, parentheseStack = [], res = []
  while(index < length) {
    readch()
    if(isBlank()) {
    }
    else if(isQuote()) {
      dealQuote()
      isReg = 1
    }
    else if(peek == '/') {
      readch()
      if(peek == '/') {
        index = s.indexOf('\n', index)
        if(index == -1) {
          index = s.length
        }
      }
      else if(peek == '*') {
        index = s.indexOf('*/', index)
        if(index == -1) {
          index = length
        }
        else {
          index += 2
        }
      }
      else if(isReg) {
        dealReg()
        isReg = 0
      }
      else {
        index--
        isReg = 1
      }
    }
    else if(isWord()) {
      dealWord()
    }
    else if(isNumber()) {
      dealNumber()
    }
    else if(peek == '(') {
      parentheseStack.push(parentheseState)
      isReg = 1
    }
    else if(peek == ')') {
      isReg = parentheseStack.pop()
    }
    else {
      isReg = peek != ']'
      modName = 0
    }
  }
  return res
  function readch() {
    peek = s.charAt(index++)
  }
  function isBlank() {
    return /\s/.test(peek)
  }
  function isQuote() {
    return peek == '"' || peek == "'"
  }
  function dealQuote() {
    var start = index
    var c = peek
    var end = s.indexOf(c, start)
    if(end == -1) {
      index = length
    }
    else if(s.charAt(end - 1) != '\\') {
      index = end + 1
    }
    else {
      while(index < length) {
        readch()
        if(peek == '\\') {
          index++
        }
        else if(peek == c) {
          break
        }
      }
    }
    if(modName) {
      res.push(s.slice(start, index - 1))
      modName = 0
    }
  }
  function dealReg() {
    index--
    while(index < length) {
      readch()
      if(peek == '\\') {
        index++
      }
      else if(peek == '/') {
        break
      }
      else if(peek == '[') {
        while(index < length) {
          readch()
          if(peek == '\\') {
            index++
          }
          else if(peek == ']') {
            break
          }
        }
      }
    }
  }
  function isWord() {
    return /[a-z_$]/i.test(peek)
  }
  function dealWord() {
    var s2 = s.slice(index - 1)
    var r = /^[\w$]+/.exec(s2)[0]
    parentheseState = {
      'if': 1,
      'for': 1,
      'while': 1,
      'with': 1
    }[r]
    isReg = {
      'break': 1,
      'case': 1,
      'continue': 1,
      'debugger': 1,
      'delete': 1,
      'do': 1,
      'else': 1,
      'false': 1,
      'if': 1,
      'in': 1,
      'instanceof': 1,
      'return': 1,
      'typeof': 1,
      'void': 1
    }[r]
    modName = /^require\s*\(\s*(['"]).+?\1\s*\)/.test(s2)
    if(modName) {
      r = /^require\s*\(\s*['"]/.exec(s2)[0]
      index += r.length - 2
    }
    else {
      index += /^[\w$]+(?:\s*\.\s*[\w$]+)*/.exec(s2)[0].length - 1
    }
  }
  function isNumber() {
    return /\d/.test(peek)
      || peek == '.' && /\d/.test(s.charAt(index))
  }
  function dealNumber() {
    var s2 = s.slice(index - 1)
    var r
    if(peek == '.') {
      r = /^\.\d+(?:E[+-]?\d*)?\s*/i.exec(s2)[0]
    }
    else if(/^0x[\da-f]*/i.test(s2)) {
      r = /^0x[\da-f]*\s*/i.exec(s2)[0]
    }
    else {
      r = /^\d+\.?\d*(?:E[+-]?\d*)?\s*/i.exec(s2)[0]
    }
    index += r.length - 1
    isReg = 0
  }
}