RegExp2
PCRE regular expressions - more complex example
main.cpp
#include <CtrlLib/CtrlLib.h>
#include <plugin/pcre/Pcre.h>
using namespace Upp;
#define LAYOUTFILE <RegExp2/RegExpExtDemoLayout.lay>
#include <CtrlCore/lay.h>
class mainwindowDlg : public Withmainwindow<TopWindow> {
typedef mainwindowDlg CLASSNAME;
public:
mainwindowDlg();
void RunRegExp();
void Set_Examples(int i);
void match_callback_fun(Vector<String>& v) {
for(int i=0, i1=v.GetCount(); i<i1; i++)
v[i]=Format("Match%d",i+1);
}
};
mainwindowDlg::mainwindowDlg()
{
CtrlLayout(*this, "RegExp Extension Demo");
Sizeable().Zoomable();
HCenterPos(800).VCenterPosZ(400);
for(int i=1; i<6; i++)
d1.Add(i, Format("TEST-%d",i));
d2.Add(1, "Disable Resolving Back-Reference")
.Add(2, "Enable Resolving Back-Reference")
.Add(3, "Use Callback Function");
d1 << [=] { Set_Examples((int)~d1); };
b1 << THISFN(RunRegExp);
b2 << [=] { t4.Clear(); };
d1.SetData(4);
Set_Examples(4);
}
void mainwindowDlg::RunRegExp()
{
RegExp regx;
RegExp reg("\\((.*?)\\)");
String t(t1.GetData());
int n=-101;
switch((int)d2.GetData()){
case 1: // no backref resolved
regx.SetPattern(t2.GetData());
if((int)o1.GetData() == 0)
n=regx.Replace(t, (String)t3.GetData());
else n=regx.ReplaceGlobal(t, (String)t3.GetData());
break;
case 2: // backref resolved
regx.SetPattern(t2.GetData());
if((int)o1.GetData() == 0)
n=regx.Replace(t, (String)t3.GetData(), true);
else n=regx.ReplaceGlobal(t, (String)t3.GetData(), true);
break;
case 3: // using callback funtion
regx.SetPattern(t2.GetData());
if((int)o1.GetData() == 0)
n=regx.Replace(t, THISFN(match_callback_fun));
else n=regx.ReplaceGlobal(t, THISFN(match_callback_fun));
break;
};
String output(t4.Get());
output
<<"Regular Expression:["<<t2.GetData()
<<"]\nReplacement Count="<<n
<<"\nInput: "<<t1.GetData()
<<"\nOutput: "<<t<<"\n\n\n";
t4.Set(output);
t4.ScrollEnd();
}
void mainwindowDlg::Set_Examples(int i)
{
switch(i){
case 1:
t1.SetData("A QUICK BROWN FOX JUMPS OVER THE LAZY DOG") ;
t2.SetData("(\\w)");
t3.SetData("(#)");
d2.SetData(1);
break;
case 2:
t1.SetData("31-1-2000 13-2-2010 1-12-2012");
t2.SetData("(\\d+)-(\\d+)-(\\d+)");
t3.SetData("(\\2)(\\1)(\\3)");
d2.SetData(2);
o1.SetData(true);
break;
case 3:
t1.SetData("A QUICK BROWN FOX JUMPS OVER THE LAZY DOG");
t2.SetData("(QUICK)");
t3.SetData("(SLOW)");
d2.SetData(1);
break;
case 4:
t1.SetData("A QUICK BROWN FOX JUMPS OVER THE LAZY DOG");
t2.SetData("(QUICK)\\s+(BROWN)");
t3.SetData("(\\2ISH)(\\1)");
d2.SetData(2);
break;
case 5:
t1.SetData("A QUICK BROWN FOX JUMPS OVER THE LAZY DOG");
t2.SetData("(\\w+)");
t3.SetData("THIS IS EXAMPLE OF THE USE OF CALLBACK FUNCTION");
d2.SetData(3);
break;
}
}
GUI_APP_MAIN
{
mainwindowDlg w;
w.Run();
}
RegExpExtDemoLayout.lay
LAYOUT(mainwindow, 500, 452)
ITEM(EditString, t1, HSizePosZ(104, 5).TopPosZ(64, 24))
ITEM(EditString, t2, HSizePosZ(104, 5).TopPosZ(92, 24))
ITEM(EditString, t3, HSizePosZ(104, 5).TopPosZ(120, 24))
ITEM(LineEdit, t4, HSizePosZ(4, 6).VSizePosZ(234, 6))
ITEM(Label, l1, SetLabel(t_("Source Text:")).SetAlign(ALIGN_RIGHT).LeftPosZ(0, 100).TopPosZ(64, 19))
ITEM(Label, l2, SetLabel(t_("Regular Expression:")).SetAlign(ALIGN_RIGHT).LeftPosZ(0, 100).TopPosZ(92, 19))
ITEM(Label, l3, SetLabel(t_("Replace Text:")).SetAlign(ALIGN_RIGHT).LeftPosZ(0, 100).TopPosZ(120, 20))
ITEM(Label, l4, SetLabel(t_("Load Preset Tests:")).SetAlign(ALIGN_RIGHT).LeftPosZ(8, 100).TopPosZ(20, 19))
ITEM(Label, l5, SetLabel(t_("Options:")).SetAlign(ALIGN_RIGHT).LeftPosZ(0, 100).TopPosZ(148, 19))
ITEM(Button, b1, SetLabel(t_("Run")).RightPosZ(8, 100).TopPosZ(188, 32))
ITEM(Button, b2, SetLabel(t_("Clear")).RightPosZ(116, 108).TopPosZ(188, 32))
ITEM(DropList, d1, LeftPosZ(112, 128).TopPosZ(20, 22))
ITEM(LabelBox, dv___12, LeftPosZ(4, 260).TopPosZ(4, 52))
ITEM(DropList, d2, LeftPosZ(104, 232).TopPosZ(148, 23))
ITEM(Option, o1, NotNull(true).SetLabel(t_("Global")).LeftPosZ(396, 88).TopPosZ(148, 16))
END_LAYOUT
|
