那些遇到过的问题

Delphi - TPerlRegEx/RegExBuddy问题

Bra*_*rad 4 regex delphi pcre regexbuddy

我遇到了RegEx和Delphi 2k9(Win32)的问题.我得到以下错误:$ 7C812AFB的第一次机会异常.消息'TPerlRegEx.Compile()的异常类异常 - 请在RegEx中指定正则表达式'.我从网站上获得了最新版本的TPerlRegEx.使用其defualt设置(使用DLL)

我包括演示源代码.它使用RegExBuddy生成的代码,最新版本.

http://www.4shared.com/file/236428923/97478b61/googleresultstestdata.html http://www.4shared.com/file/236439483/e0acbe6d/Unit2.htmlDelphi FORM http://www.4shared.com/file/236439473/6734a2a2/Unit2.htmlDelphi PAS

谢谢你的帮助

-Brad

数据来自谷歌外部关键字工具RegEx可以使用一些改进...但在RegExBuddy中工作不在Delphi中

unit Unit2;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, PerlRegEx;

type
  TForm2 = class(TForm)
    Memo1: TMemo;
    Memo2: TMemo;
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form2: TForm2;

implementation

{$R *.dfm}

procedure TForm2.Button1Click(Sender: TObject);
var
 Regex: TPerlRegEx;
 GroupIndex: Integer;
begin
Regex := TPerlRegEx.Create(nil);
Regex.RegEx := 'criteria\.push\(new kpCriterion\(&#39;(?P<keyword>(.*?))&#39;, (?P<number1>(.*?)),'#13#10'''(?P<localsearch>(.*?))'', ''(?P<globalsearch>(.*?))'', (?P<localsearchnum>(.*?)), (?P<globalsearchnum>(.*?)), (.*+)'#13#10','#13#10'&#39;\$(?P<price>(.*?))&#39;, (?P<number2>(.*?)),'#13#10'&#39;(?P<range>(.*?))&#39;, (?P<number3>(.*+))';
Regex.Options := [preMultiLine];
Regex.Subject := memo1.text;
if Regex.Match then begin
  memo2.Lines.Add('Matches Found');
 repeat
  for GroupIndex := 0 to Regex.SubExpressionCount do begin
         memo2.lines.add( Regex.SubExpressions[GroupIndex]); //Add Results to memo
   // backreference text: Regex.SubExpressions[GroupIndex];
   // backreference start: Regex.SubExpressionOffsets[GroupIndex];
   // backreference length: Regex.SubExpressionLengths[GroupIndex];
  end;
 until not Regex.MatchAgain;
end
else
memo2.Lines.Add('No-Matches Found');
end;

end.
Run Code Online (Sandbox Code Playgroud)

DFM

object Form2: TForm2
  Left = 0
  Top = 0
  Caption = 'Form2'
  ClientHeight = 247
  ClientWidth = 480
  Color = clBtnFace
  Font.Charset = DEFAULT_CHARSET
  Font.Color = clWindowText
  Font.Height = -11
  Font.Name = 'Tahoma'
  Font.Style = []
  OldCreateOrder = False
  PixelsPerInch = 96
  TextHeight = 13
  object Memo1: TMemo
    Left = 8
    Top = 8
    Width = 185
    Height = 89
    Lines.Strings = (
      'var showImpressions = false; var '
      'criteriaSuggestor = '
      '&#39;sensei_keyword&#39;; var '
      'historicalTimePeriod = &#39;Mar '
      '2009 - Feb 2010&#39;; var '
      'historicalStartMonth = 2; var '
      'impressionTimePeriod = '
      '&#39;February&#39;; var '
      'criteriaGroupsArray = new Array(); '
      'var captchaError = false; var '
      'quotaExceeded = false;'
      'var criteria = new Array();'
      'var monthlyVariation = new '
      'Array();'
      'monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.52'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.67'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.82'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '1.0'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.73'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.5'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.45'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.45'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.43'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.4'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.47'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.45'
      '));'
      'criteria.push(new '
      'kpCriterion(&#39;thunderstorm&#3'
      '9;, 1.9117305278778076,'
      #39'201,000'#39', '#39'550,000'#39', 201000, '
      '550000, 0.8666667'
      ','
      '&#39;$0.49&#39;, 493102,'
      '&#39;1 - 3&#39;, 2'
      ','
      '0'
      ','
      '0'
      ','
      'monthlyVariation,'
      '5'
      ','
      '&#39;&#39;'
      ','
      'kpView.MATCH_BROAD'
      ','
      '0'
      ')); var monthlyVariation = new '
      'Array();'
      'monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.57'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '1.0'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.7'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.57'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.45'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.42'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.47'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.46'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.43'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.36'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.45'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.43'
      '));'
      'criteria.push(new '
      'kpCriterion(&#39;[thunderstorm]&'
      '#39;, 1.9117305278778076,'
      #39'33,100'#39', '#39'90,500'#39', 33100, 90500, '
      '0.8666667'
      ','
      '&#39;$0.49&#39;, 493102,'
      '&#39;1 - 3&#39;, 2'
      ','
      '0'
      ','
      '0'
      ','
      'monthlyVariation,'
      '3'
      ','
      '&#39;&#39;'
      ','
      'kpView.MATCH_EXACT'
      ','
      '0'
      ')); var monthlyVariation = new '
      'Array();'
      'monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.52'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.67'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.82'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '1.0'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.73'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.5'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.45'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.45'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.43'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.4'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.47'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.45'
      '));'
      'criteria.push(new '
      'kpCriterion(&#39;\42thunderstorm\'
      '042&#39;, 1.9117305278778076,'
      #39'201,000'#39', '#39'450,000'#39', 201000, '
      '450000, 0.8666667'
      ','
      '&#39;$0.49&#39;, 493102,'
      '&#39;1 - 3&#39;, 2'
      ','
      '0'
      ','
      '0'
      ','
      'monthlyVariation,'
      '5'
      ','
      '&#39;&#39;'
      ','
      'kpView.MATCH_PHRASE'
      ','
      '0'
      ')); var monthlyVariation = new '
      'Array();'
      'monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.75'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.81'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '1.0'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.87'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.64'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.56'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.52'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.6'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.53'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.47'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.58'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.61'
      '));'
      'criteria.push(new '
      'kpCriterion(&#39;thunderstorms&#'
      '39;, 1.8268921375274658,'
      #39'110,000'#39', '#39'201,000'#39', 110000, '
      '201000, 0.8'
      ','
      '&#39;$0.56&#39;, 559074,'
      '&#39;1 - 3&#39;, 2'
      ','
      '0'
      ','
      '0'
      ','
      'monthlyVariation,'
      '4'
      ','
      '&#39;&#39;'
      ','
      'kpView.MATCH_BROAD'
      ','
      '0'
      ')); var monthlyVariation = new '
      'Array();'
      'monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.83'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.82'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '1.0'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.67'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.42'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.41'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.47'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.56'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.47'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.39'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.5'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.51'
      '));'
      'criteria.push(new '
      'kpCriterion(&#39;[thunderstorms]&'
      '#39;, 1.8268921375274658,'
      #39'22,200'#39', '#39'40,500'#39', 22200, 40500, '
      '0.8'
      ','
      '&#39;$0.56&#39;, 559074,'
      '&#39;1 - 3&#39;, 2'
      ','
      '0'
      ','
      '0'
      ','
      'monthlyVariation,'
      '4'
      ','
      '&#39;&#39;'
      ','
      'kpView.MATCH_EXACT'
      ','
      '0'
      ')); var monthlyVariation = new '
      'Array();'
      'monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.75'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.81'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '1.0'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.87'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.64'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.56'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.52'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.6'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.53'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.47'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.58'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.61'
      '));'
      'criteria.push(new '
      'kpCriterion(&#39;\42thunderstorms'
      '\042&#39;, 1.8268921375274658,'
      #39'110,000'#39', '#39'165,000'#39', 110000, '
      '165000, 0.8'
      ','
      '&#39;$0.56&#39;, 559074,'
      '&#39;1 - 3&#39;, 2'
      ','
      '0'
      ','
      '0'
      ','
      'monthlyVariation,'
      '4'
      ','
      '&#39;&#39;'
      ','
      'kpView.MATCH_PHRASE'
      ','
      '0'
      ')); var monthlyVariation = new '
      'Array();'
      'monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.71'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.73'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.82'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '1.0'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.87'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.92'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.82'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.7'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.75'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.68'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.77'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.79'
      '));'
      'criteria.push(new '
      'kpCriterion(&#39;lightning '
      'storm&#39;, 1.774579644203186,'
      #39'49,500'#39', '#39'90,500'#39', 49500, 90500, '
      '0.73333335'
      ','
      '&#39;$0.54&#39;, 535666,'
      '&#39;1 - 3&#39;, 2'
      ','
      '0'
      ','
      '0'
      ','
      'monthlyVariation,'
      '5'
      ','
      '&#39;&#39;'
      ','
      'kpView.MATCH_BROAD'
      ','
      '0'
      ')); var monthlyVariation = new '
      'Array();'
      'monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.76'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.87'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.97'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '1.0'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.87'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '1.0'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.98'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.87'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.84'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.68'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.86'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.81'
      '));'
      'criteria.push(new '
      'kpCriterion(&#39;[lightning '
      'storm]&#39;, 1.774579644203186,'
      #39'12,100'#39', '#39'22,200'#39', 12100, 22200, '
      '0.73333335'
      ','
      '&#39;$0.54&#39;, 535666,'
      '&#39;1 - 3&#39;, 2'
      ','
      '0'
      ','
      '0'
      ','
      'monthlyVariation,'
      '5'
      ','
      '&#39;&#39;'
      ','
      'kpView.MATCH_EXACT'
      ','
      '0'
      ')); var monthlyVariation = new '
      'Array();'
      'monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.68'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.72'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.81'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '1.0'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.85'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.92'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.81'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.67'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.71'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.65'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.76'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.73'
      '));'
      'criteria.push(new '
      'kpCriterion(&#39;\42lightning '
      'storm\042&#39;, '
      '1.774579644203186,'
      #39'33,100'#39', '#39'60,500'#39', 33100, 60500, '
      '0.73333335'
      ','
      '&#39;$0.54&#39;, 535666,'
      '&#39;1 - 3&#39;, 2'
      ','
      '0'
      ','
      '0'
      ','
      'monthlyVariation,'
      '5'
      ','
      '&#39;&#39;'
      ','
      'kpView.MATCH_PHRASE'
      ','
      '0'
      ')); var monthlyVariation = new '
      'Array();'
      'monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.69'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.69'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.71'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.66'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.68'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.7'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.75'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.79'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.74'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.72'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '1.0'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.7'
      '));'
      'criteria.push(new '
      'kpCriterion(&#39;rain storm&#39;, '
      '1.7464053630828857,'
      #39'27,100'#39', '#39'49,500'#39', 27100, 49500, '
      '0.6666667'
      ','
      '&#39;$0.53&#39;, 526334,'
      '&#39;1 - 3&#39;, 2'
      ','
      '0'
      ','
      '0'
      ','
      'monthlyVariation,'
      '0'
      ','
      '&#39;&#39;'
      ','
      'kpView.MATCH_BROAD'
      ','
      '0'
      ')); var monthlyVariation = new '
      'Array();'
      'monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '1.0'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.87'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.79'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.57'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.55'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.57'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.74'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.76'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.69'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.61'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.89'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.73'
      '));'
      'criteria.push(new '
      'kpCriterion(&#39;[rain '
      'storm]&#39;, '
      '1.7464053630828857,'
      #39'5,400'#39', '#39'8,100'#39', 5400, 8100, '
      '0.6666667'
      ','
      '&#39;$0.53&#39;, 526334,'
      '&#39;1 - 3&#39;, 2'
      ','
      '0'
      ','
      '0'
      ','
      'monthlyVariation,'
      '2'
      ','
      '&#39;&#39;'
      ','
      'kpView.MATCH_EXACT'
      ','
      '0'
      ')); var monthlyVariation = new '
      'Array();'
      'monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.73'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.7'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.68'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.61'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.68'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.69'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.73'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.72'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.62'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.59'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '1.0'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.66'
      '));'
      'criteria.push(new '
      'kpCriterion(&#39;\42rain '
      'storm\042&#39;, '
      '1.7464053630828857,'
      #39'14,800'#39', '#39'27,100'#39', 14800, 27100, '
      '0.6666667'
      ','
      '&#39;$0.53&#39;, 526334,'
      '&#39;1 - 3&#39;, 2'
      ','
      '0'
      ','
      '0'
      ','
      'monthlyVariation,'
      '0'
      ','
      '&#39;&#39;'
      ','
      'kpView.MATCH_PHRASE'
      ','
      '0'
      ')); var monthlyVariation = new '
      'Array();'
      'monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.82'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.87'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '1.0'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '1.0'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.78'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.82'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.84'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.79'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.77'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.61'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.92'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.82'
      '));'
      'criteria.push(new '
      'kpCriterion(&#39;lightning '
      'storms&#39;, '
      '1.6842896938323975,'
      #39'14,800'#39', '#39'27,100'#39', 14800, 27100, '
      '0.73333335'
      ','
      '&#39;$0.42&#39;, 417108,'
      '&#39;1 - 3&#39;, 2'
      ','
      '0'
      ','
      '0'
      ','
      'monthlyVariation,'
      '4'
      ','
      '&#39;&#39;'
      ','
      'kpView.MATCH_BROAD'
      ','
      '0'
      ')); var monthlyVariation = new '
      'Array();'
      'monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.9'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.9'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '1.0'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.84'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.7'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.81'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.88'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.77'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.76'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.57'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.75'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.63'
      '));'
      'criteria.push(new '
      'kpCriterion(&#39;[lightning '
      'storms]&#39;, '
      '1.6842896938323975,'
      #39'3,600'#39', '#39'8,100'#39', 3600, 8100, '
      '0.73333335'
      ','
      '&#39;$0.42&#39;, 417108,'
      '&#39;1 - 3&#39;, 2'
      ','
      '0'
      ','
      '0'
      ','
      'monthlyVariation,'
      '4'
      ','
      '&#39;&#39;'
      ','
      'kpView.MATCH_EXACT'
      ','
      '0'
      ')); var monthlyVariation = new '
      'Array();'
      'monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.8'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.86'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '1.0'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.99'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.77'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.83'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.85'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.78'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.77'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.6'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.91'
      ')); monthlyVariation.push(new '
      'kpMonthlyPopularity('
      '0.81'
      '));'
      'criteria.push(new '
      'kpCriterion(&#39;\42lightning '
      'storms\042&#39;, '
      '1.6842896938323975,'
      #39'12,100'#39', '#39'22,200'#39', 12100, 22200, '
      '0.73333335'
      ','
      '&#39;$0.42&#39;, 417108,'
      '&#39;1 - 3&#39;, 2'
      ','
      '0'
      ','
      '0'
      ','
      'monthlyVariation,'
      '4'
      ','
      '&#39;&#39;'
      ','
      'kpView.MATCH_PHRASE'
      ','
      '0'
      ')); var monthlyVariation =
Run Code Online (Sandbox Code Playgroud)

Jan*_*rts 6

运行时错误"TPerlRegEx.Compile() - 请首先在RegEx中指定正则表达式"意味着您调用了TPerlRegEx.Compile或其他调用此方法的方法(例如TPerlRegEx.Match)而未设置TPerlRegEx.RegEx属性.您无法使用问题中的代码获得该错误.

你的文件Unit2.pas无法编译错误"字符串文字最多可包含255个元素".这是RegexBuddy在生成Delphi代码时尚未考虑的问题.(下一个免费的次要更新将会.)如果你手动将字符串拆分成短于255个字符的部分(例如'longstring'变成'long'+'string'),那么代码就会运行.但它没有找到任何匹配.

为了让你的代码找到匹配项,我让它从磁盘加载你的文件googleresultstestdata.txt而不是使用备忘录来确保备忘录的自动换行不会在文本中添加任何换行符.我还从正则表达式中删除了#13的所有实例.您的文件googleresultstestdata.txt使用的UNIX样式换行符仅与\n或#10匹配.\ r \n或#13#10匹配Windows风格的换行符.

在Delphi字符串中,#13表示CR并#10表示LF.在正则表达式中使用文字换行符绝对没有问题.如果你输入一个文字换行符到RegexBuddy,那么RegexBuddy就像#13#10在Delphi中那样编码.如果你输入\r\nRegexBuddy,那么RegexBuddy就像'\r\n'在Delphi中那样编码.PCRE(由TPerlRegEx内部使用)将\ r和\n解释为CR和LF.

您的正则表达式使用冗余捕获组. (?<name>(.*?))将.*?内部编号为捕获组,并将其放入命名的capturng组"name"中.这样做没有意义.如果您想要命名组,只需使用(?<name>.*?)

这不会影响正则表达式匹配的内容,但会影响其性能.但更大的问题是所有这些.*?都可能导致灾难性的回溯.这是否值得关注取决于您将如何使用正则表达式.如果您只在自己的数据上使用它并且它不会导致问题,您可以保留它.但是,如果这是进入处理用户提供的数据的应用程序,那么如果它不能与用户的数据匹配,那么你需要一个优雅失败的正则表达式.

unit Unit2;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, PerlRegEx;

type
  TForm2 = class(TForm)
    Memo1: TMemo;
    Memo2: TMemo;
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form2: TForm2;

implementation

{$R *.dfm}

procedure TForm2.Button1Click(Sender: TObject);
var
    Regex: TPerlRegEx;
    GroupIndex: Integer;
  FS: TFileStream;
  S: UTF8String;
begin
  Regex := TPerlRegEx.Create(nil);
  Regex.RegEx := 'criteria\.push\(new kpCriterion\(&#39;(?P<keyword>(.*?))&#39;, (?P<number1>(.*?)),' +
                 #10'''(?P<localsearch>(.*?))'', ''(?P<globalsearch>(.*?))'', (?P<localsearchnum>(.*?)), (?P<globalsearchnum>(.*?)), (.*+)'#10','#10'&#39;\$(?P<price>(.*?))&#39;, (?P<number2>(.*?)),'#10'&#39;(?P<range>(.*?))&#39;, (?P<number3>(.*+))';
  Regex.Options := [preMultiLine];
  FS := TFileStream.Create('g:\temp\googleresultstestdata.txt', fmOpenRead);
  SetLength(S, FS.Size);
  FS.Read(S[1], Length(S));
  FS.Free;
  Regex.Subject := S;
  if Regex.Match then begin
    memo2.Lines.Add('Matches Found');
    repeat
      for GroupIndex := 0 to Regex.SubExpressionCount do begin
           memo2.lines.add( Regex.SubExpressions[GroupIndex]); //Add Results to memo
        // backreference text: Regex.SubExpressions[GroupIndex];
        // backreference start: Regex.SubExpressionOffsets[GroupIndex];
        // backreference length: Regex.SubExpressionLengths[GroupIndex];
      end;
    until not Regex.MatchAgain;
  end
  else
    memo2.Lines.Add('No-Matches Found');
end;

end.
Run Code Online (Sandbox Code Playgroud)

归档时间：

查看次数：

2930 次

最近记录：

15 年，11 月 前
相关归档
Perl中的Regex Group:如何从正则表达式组中将元素捕获到数组中,以匹配字符串中未知数量的/多个/变量出现？ 47
正则表达式匹配任何单个字符(仅限一个字符) 25
为什么这个正则表达式会杀死Java正则表达式引擎？ 15
如何使用Cucumber和Webrat检查表单是否预先填充了值？ 10
使用正则表达式在字符串中查找sql​​参数 8
是否有可能改变vim regexp方言？ 7
接口的多重继承 6
DUnit:'全球'SetUp和TearDown 5
拦截delphi上的提示事件 4
PixelSearch功能效率很低,我该如何优化呢？ 4
难疑归档
为什么减去这两次(在1927年)给出一个奇怪的结果？ 6628
URI,URL和URN有什么区别？ 4217
让现有的Git分支跟踪一个远程分支？ 3437
如何更新GitHub分叉存储库？ 3390
使用Java创建内存泄漏 3076
将具有默认值的列添加到SQL Server中的现有表 2648
如何在Bash中解析命令行参数？ 1764
在视图控制器之间传递数据 1340
Python字符串格式:%vs. .format 1323
将JavaScript字符串转换为全部小写？ 1260