cacul.form

一个采用了词法分析和语法分析的计算器

<?xml version="1.0" encoding="UTF-8" ?>

<Form version="1.3" type="org.netbeans.modules.form.forminfo.JFrameFormInfo">
  <NonVisualComponents>
    <Menu class="javax.swing.JMenuBar" name="jMenuBar1">
      <SubComponents>
        <Menu class="javax.swing.JMenu" name="jMenu1">
          <Properties>
            <Property name="text" type="java.lang.String" value="&#x9009;&#x9879;"/>
          </Properties>
          <SubComponents>
            <MenuItem class="javax.swing.JMenuItem" name="jMenuItem1">
              <Properties>
                <Property name="text" type="java.lang.String" value="&#x91cd;&#x65b0;&#x5f00;&#x59cb;"/>
              </Properties>
              <Events>
                <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="jMenuItem1ActionPerformed"/>
              </Events>
            </MenuItem>
            <MenuItem class="javax.swing.JMenuItem" name="jMenuItem2">
              <Properties>
                <Property name="text" type="java.lang.String" value="&#x9000;&#x51fa;"/>
              </Properties>
              <Events>
                <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="jMenuItem2ActionPerformed"/>
              </Events>
            </MenuItem>
          </SubComponents>
        </Menu>
        <Menu class="javax.swing.JMenu" name="jMenu2">
          <Properties>
            <Property name="text" type="java.lang.String" value="&#x5e2e;&#x52a9;"/>
          </Properties>
          <SubComponents>
            <MenuItem class="javax.swing.JMenuItem" name="jMenuItem3">
              <Properties>
                <Property name="text" type="java.lang.String" value="&#x5e2e;&#x52a9;&#x4e3b;&#x9898;"/>
              </Properties>
              <Events>
                <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="jMenuItem3ActionPerformed"/>
              </Events>
            </MenuItem>
            <MenuItem class="javax.swing.JMenuItem" name="jMenuItem4">
              <Properties>
                <Property name="text" type="java.lang.String" value="&#x7cfb;&#x7edf;&#x8bf4;&#x660e;"/>
              </Properties>
              <Events>
                <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="jMenuItem4ActionPerformed"/>
              </Events>
            </MenuItem>
          </SubComponents>
        </Menu>
        <Menu class="javax.swing.JMenu" name="jMenu3">
          <Properties>
            <Property name="text" type="java.lang.String" value="&#x94fe;&#x63a5;"/>
          </Properties>
          <SubComponents>
            <MenuItem class="javax.swing.JMenuItem" name="jMenuItem6">
              <Properties>
                <Property name="text" type="java.lang.String" value="&#x5927;&#x5de5;&#x9996;&#x9875;"/>
              </Properties>
              <Events>
                <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="jMenuItem6ActionPerformed"/>
              </Events>
            </MenuItem>
            <MenuItem class="javax.swing.JMenuItem" name="jMenuItem7">
              <Properties>
                <Property name="text" type="java.lang.String" value="&#x8f6f;&#x9662;&#x9996;&#x9875;"/>
                <Property name="actionCommand" type="java.lang.String" value="&#x5927;&#x5de5;&#x8f6f;&#x9662;&#x9996;&#x9875;"/>
              </Properties>
              <Events>
                <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="jMenuItem7ActionPerformed"/>
              </Events>
            </MenuItem>
          </SubComponents>
        </Menu>
      </SubComponents>
    </Menu>
  </NonVisualComponents>
  <Properties>
    <Property name="defaultCloseOperation" type="int" value="3"/>
    <Property name="title" type="java.lang.String" value="&#x79d1;&#x5b66;&#x8ba1;&#x7b97;&#x5668;1.0&#x6b63;&#x5f0f;&#x7248;"/>
    <Property name="alwaysOnTop" type="boolean" value="true"/>
    <Property name="background" type="java.awt.Color" editor="org.netbeans.beaninfo.editors.ColorEditor">
      <Color blue="ff" green="ff" id="&#x7a97;&#x53e3;" palette="2" red="ff" type="palette"/>
    </Property>
    <Property name="minimumSize" type="java.awt.Dimension" editor="org.netbeans.beaninfo.editors.DimensionEditor">
      <Dimension value="[100, 200]"/>
    </Property>
    <Property name="resizable" type="boolean" value="false"/>
  </Properties>
  <SyntheticProperties>
    <SyntheticProperty name="menuBar" type="java.lang.String" value="jMenuBar1"/>
    <SyntheticProperty name="formSizePolicy" type="int" value="1"/>
  </SyntheticProperties>
  <AuxValues>
    <AuxValue name="FormSettings_generateMnemonicsCode" type="java.lang.Boolean" value="false"/>
    <AuxValue name="FormSettings_layoutCodeTarget" type="java.lang.Integer" value="1"/>
    <AuxValue name="FormSettings_listenerGenerationStyle" type="java.lang.Integer" value="0"/>
    <AuxValue name="FormSettings_variablesLocal" type="java.lang.Boolean" value="false"/>
    <AuxValue name="FormSettings_variablesModifier" type="java.lang.Integer" value="2"/>
  </AuxValues>

  <Layout>
    <DimensionLayout dim="0">
      <Group type="103" groupAlignment="0" attributes="0">
          <Component id="jTextField1" alignment="0" pref="371" max="32767" attributes="0"/>
          <Group type="102" alignment="1" attributes="0">
              <EmptySpace pref="21" max="32767" attributes="0"/>
              <Group type="103" groupAlignment="1" attributes="0">
                  <Component id="jButton17" pref="67" max="32767" attributes="1"/>
                  <Component id="jButton8" pref="67" max="32767" attributes="1"/>
                  <Component id="jButton2" pref="67" max="32767" attributes="1"/>
                  <Component id="jButton3" pref="67" max="32767" attributes="1"/>
                  <Component id="jButton4" pref="67" max="32767" attributes="1"/>
                  <Component id="jButton5" pref="67" max="32767" attributes="1"/>
                  <Component id="jButton6" pref="67" max="32767" attributes="1"/>
                  <Component id="jButton7" pref="67" max="32767" attributes="1"/>
                  <Component id="jButton1" alignment="1" min="-2" pref="67" max="-2" attributes="1"/>
              </Group>
              <EmptySpace max="-2" attributes="0"/>
              <Group type="103" groupAlignment="0" attributes="0">
                  <Component id="jButton18" min="0" pref="0" max="32767" attributes="1"/>
                  <Component id="jButton12" pref="64" max="32767" attributes="1"/>
                  <Component id="jButton13" min="0" pref="0" max="32767" attributes="1"/>
                  <Component id="jButton14" min="0" pref="0" max="32767" attributes="1"/>
                  <Component id="jButton15" pref="64" max="32767" attributes="1"/>
                  <Component id="jButton11" pref="64" max="32767" attributes="1"/>
                  <Component id="jButton10" pref="64" max="32767" attributes="1"/>
                  <Component id="jButton9" pref="64" max="32767" attributes="1"/>
                  <Component id="jButton16" min="-2" pref="64" max="-2" attributes="1"/>
              </Group>
              <EmptySpace max="-2" attributes="0"/>
              <Group type="103" groupAlignment="0" attributes="0">
                  <Component id="jButton19" pref="72" max="32767" attributes="1"/>
                  <Component id="jButton27" pref="72" max="32767" attributes="1"/>
                  <Component id="jButton26" pref="72" max="32767" attributes="1"/>
                  <Component id="jButton21" pref="72" max="32767" attributes="1"/>
                  <Component id="jButton22" pref="72" max="32767" attributes="1"/>
                  <Component id="jButton23" pref="72" max="32767" attributes="1"/>
                  <Component id="jButton24" pref="72" max="32767" attributes="1"/>
                  <Component id="jButton25" pref="72" max="32767" attributes="1"/>
                  <Component id="jButton20" alignment="0" min="-2" pref="72" max="-2" attributes="1"/>
              </Group>
              <EmptySpace min="-2" pref="10" max="-2" attributes="0"/>
              <Group type="103" groupAlignment="0" attributes="0">
                  <Component id="jButton28" pref="115" max="32767" attributes="1"/>
                  <Component id="jButton30" pref="115" max="32767" attributes="1"/>
                  <Component id="jButton29" alignment="1" pref="115" max="32767" attributes="1"/>
              </Group>
              <EmptySpace max="-2" attributes="0"/>
          </Group>
          <Group type="102" alignment="0" attributes="0">
              <EmptySpace min="-2" pref="26" max="-2" attributes="0"/>
              <Component id="jLabel1" pref="335" max="32767" attributes="0"/>
              <EmptySpace max="-2" attributes="0"/>
          </Group>
      </Group>
    </DimensionLayout>
    <DimensionLayout dim="1">
      <Group type="103" groupAlignment="0" attributes="0">
          <Group type="102" alignment="0" attributes="0">
              <Component id="jTextField1" min="-2" max="-2" attributes="0"/>
              <EmptySpace max="-2" attributes="0"/>
              <Group type="103" groupAlignment="3" attributes="0">
                  <Component id="jButton20" alignment="3" min="-2" pref="23" max="-2" attributes="0"/>
                  <Component id="jButton1" alignment="3" min="-2" pref="23" max="-2" attributes="0"/>
                  <Component id="jButton9" alignment="3" min="-2" pref="23" max="-2" attributes="0"/>
                  <Component id="jButton29" alignment="3" min="-2" pref="23" max="-2" attributes="0"/>
              </Group>
              <EmptySpace max="-2" attributes="0"/>
              <Group type="103" groupAlignment="3" attributes="0">
                  <Component id="jButton10" alignment="3" min="-2" pref="23" max="-2" attributes="0"/>
                  <Component id="jButton3" alignment="3" min="-2" pref="23" max="-2" attributes="0"/>
                  <Component id="jButton30" alignment="3" min="-2" pref="23" max="-2" attributes="0"/>
                  <Component id="jButton19" alignment="3" min="-2" pref="23" max="-2" attributes="0"/>
              </Group>
              <EmptySpace max="-2" attributes="0"/>
              <Group type="103" groupAlignment="3" attributes="0">
                  <Component id="jButton11" alignment="3" min="-2" pref="23" max="-2" attributes="0"/>
                  <Component id="jButton2" alignment="3" min="-2" pref="23" max="-2" attributes="0"/>
                  <Component id="jButton21" alignment="3" min="-2" pref="23" max="-2" attributes="0"/>
                  <Component id="jButton28" alignment="3" min="-2" pref="23" max="-2" attributes="0"/>
              </Group>
              <EmptySpace max="-2" attributes="0"/>
              <Group type="103" groupAlignment="3" attributes="0">
                  <Component id="jButton4" alignment="3" min="-2" pref="23" max="-2" attributes="0"/>
                  <Component id="jButton12" alignment="3" min="-2" pref="23" max="-2" attributes="0"/>
                  <Component id="jButton22" alignment="3" min="-2" pref="23" max="-2" attributes="0"/>
              </Group>
              <EmptySpace max="-2" attributes="0"/>
              <Group type="103" groupAlignment="3" attributes="0">
                  <Component id="jButton5" alignment="3" min="-2" pref="23" max="-2" attributes="0"/>
                  <Component id="jButton13" alignment="3" min="-2" pref="23" max="-2" attributes="0"/>
                  <Component id="jButton23" alignment="3" min="-2" pref="23" max="-2" attributes="0"/>
              </Group>
              <EmptySpace max="-2" attributes="0"/>