For example for <node1> the string should be (if possible including indents and line breaks): <subnode1> <value1>101</value1> <value2>102</value2> <value3>103</value3> </subnode1> <subnode2> <value1>501</value1> <value2>502</value2> <value3>503 Jul 27, 2015 · The proper answer to question - and it is not the easy one - basically consist of tree steps: . g: base64, hex string May 16, 2012 · A common condition that all programs should do is to check if string are empty or not. Unless Delphi uses a fake console app (I think it does not), what happens is not under the control of the VCL, but of Windows itself. In fact, this is more likely to be effective, since Flush simply passes the flush request to the Operating System, which may in turn be doing its own buffering, and possibly caching. It has to retrieve the current text into a new allocated String, then reallocate that String to append the new text, and then finally clear the entire Memo and re-parse the new String ftom scratch. That is not possible. SaveToFile()). ’ end; this doesn’t seem to be working and I think it’s because the string and integer doesn’t work together. WriteBuffer(nChars, SizeOf(nChars); if nChars > 0 then stream. Briefly, a TStringList is like an array of strings that you can reference by index. To remove the quotation marks from a quoted string, use the AnsiDequotedStr routine. You should use some other character as separator for the string lists. Version 3 Is used to write a line of data to a binary file with the given FileHandle. Any ideas? var, var sName : string ; sName := edit1. For years I use my own HexEncode, very similar with Forlan's code up there, but just today I found a faster way to encode Hex. – Ken White Nov 12, 2023 · The only overload which has the text format parameter is the first one, so we need to use that one. Dec 22, 2011 · function ReadFile(const FileName: string): string; var Strings: TStringList; begin Strings := TStringList. Dec 23, 2017 · FYI, the support of uppercase goes all the way back to at least Delphi 5, if not 4 (but it didn't ignore non-hex characters #58. Now a added this to a new app and dumped the Loadstring variable into a memo with memo. . The is some delphi units around that contain implementations of this algorithm. Data). If you want your code to be able to read Unicode data then Pascal IO cannot help you. This is a higher level class that takes care of the details of getting data into the stream. For me, files with text as var's formated - Feb 24, 2014 · Ask questions, find answers and collaborate at work with Stack Overflow for Teams. The same effect can be achieved by closing the file. Is the number in the string required to be a number that can be stored by a Delphi numeric type? Nineteen quintillion is a number, but it won't fit in any Delphi integral type. – Sep 24, 2010 · Thanks again. text ; if edit1. Button1Click(Sender: TObject); begin SaveStringGrid(StringGrid1, 'c:\temp. Jul 29, 2011 · here is an old tipp from SwissDelphiCenter that could help you // Save StringGrid1 to 'c:\temp. Open a text file to allow appending of text to the end: AssignFile: Assigns a file handle to a binary or text file: CloseFile: Closes an open file: File: Defines a typed or untyped file: Reset: Open a text file for reading, or binary file for read/write: TextFile: Declares a file type for storing lines of text Mar 18, 2015 · Is there a built-in function in delphi to find if a string contains a substring, but not at the end? For example suppose I have these strings: G15001, G15005, G15015, G14015, G14004, PLU15010, PL Aug 12, 2018 · In an answer to an earlier question it was suggested to use a TStringList and its SaveToFile() method. WriteBuffer(ws[1], nChars * SizeOf(ws[1])); end; function ReadWideString(stream: TStream): WideString; var nChars: LongInt Delphi/Pascal properties are deeply linked to RTTI so the getter and the setter have to work on the same type. Description: The TextFile type defines a file type for holding textual data. You can achieve this goal by using the GetACP() function from Windows API. They do provide mechanisms for reading and writing numerical data stored as text (see Write), but it is safer and wiser to use structured records when storing anything other than plain text strings. Jul 6, 2009 · Thanks to all who offered up help. You have a string list that you do nothing with, and an ini file that behaves as designed. Description: The Format function provides 'C' like formatting of multiple of simple data types into a string. Your answer says for this exact text . You can write directly to the grid cells. text); Ini. Explore Teams Create a free Team May 9, 2012 · Welcome to StackOverflow! Please try to rephrase your question; it sounds to me like a complete homework assignment, have you tried something ? Use a TStreamWriter, which is automatically buffered, and can handle flushing its buffers to the TFileStream automatically. but if this is really needed, you can use: TStringStream class instead of TMemoryStream. Text, myDelimiter, #13#10, [rfReplaceAll]); // Use [rfReplaceAll, rfIgnoreCase] if you want to ignore case Nov 6, 2019 · Im almost sure that I already used the code below without any issues in previous application. You don't need at all to use an intermediate TStringList. So just be careful of that. Write(Str[1], StrLen); you're writing first StrLen bytes to the stream. If you would use TStringList and you would want to append, you would first read the file (StringList. Text file, what I must write in blobs, contains text on English, Russian and Georgian languages(see image). This is a button. Nov 12, 2021 · The version you use above is faulty, as the AnsiString equivalent of a UNICODE String can be of a different length than the UNICODE String, f. String in old versions of Delphi is AnsiString (1-byte per char) and WideString in new versions (2-bytes per char). Apr 13, 2011 · Something like this should do: // For those who need a disclaimer: // This code is meant as a sample to show you how the basic check for non-ASCII characters goes // It will give low performance with long strings that are called often. I have already tried changing the Rewrite command to Write. WriteString(person1, 'Lastname', Lastname. g. Mar 15, 2017 · @TomBrunberg appending to the Text property is very inefficient. #96 until Delphi 2009). If you're opening the file using the old style File, it's much different than if you're opening it with a modern TFileStream. In fact, the unit (and this JSONReformat() function) does all the process directly in UTF-8, without any memory allocation of the data into string or widestring. Oct 12, 2014 · The downside to this is that the entire Memo content has to be stored into a temporary String in memory before the file is then touched. Aug 29, 2013 · Note: Our SynCommons. Dec 3, 2014 · Use QuotedStr to convert the string S to a quoted string. ReadChar; Writeln (AChar); // read a string and write it to the console AString:= BR. S. hihihi the code that I have so far is this The objective was to create a Delphi equivalent to be called SendLine which had a single string type parameter, i. suppose you have the following record. txt': TFile. and TStringStream. Encoding is the encoding to be used for the text. ReadDouble; Writeln (ADouble); // read a char and write it to the console AChar:= BR. ini). May 17, 2014 · If you want to place your string at the caret position of your memo you can use the following code: procedure TForm1. ASCII); Open a text file to allow appending of text to the end: AssignFile: Assigns a file handle to a binary or text file: CloseFile: Closes an open file: File: Defines a typed or untyped file: Reset: Open a text file for reading, or binary file for read/write: TextFile: Declares a file type for storing lines of text Hi I am having a problem running a function to read a text file the problem seems to be that my antivirus blocks my delphi console program because when I do for a visual form there is no problem . The Code editor in Delphi is a full-featured, customizable UTF8 editor that provides syntax highlighting, multiple undo capability and context-sensitive help for language elements. text); Feb 12, 2019 · DB has utf-encoding. SysUtils. Nov 15, 2016 · After looking at Delphi extract string between to 2 tags and trying the code given there by Andreas Rejbrand I realized that I needed a version that wouldn't stop after one tag - my goal is to write all the values that occur between two strings in several . The string has not been modified since the typecast was made. Text:= System. LoadFromFile(FileName); Result := Strings. That overhead adds up over time as the Text grows. MyString; Write: TMyData(TreeView1. Take the below statements: (1) if Length(Str)=0 then // do something (2) if Str='' then // do something Apr 1, 2020 · On Windows, TIniFile internally uses the Win32 PrivateProfile API (in this case, WritePrivateProfileStringA() in Delphi 2007 and earlier, and WritePrivateProfileStringW() in Delphi 2009 and later). for example, i have some text file name is 'test. Output is used in the text file Write, WriteLn and Seek routines. Oct 29, 2015 · String content = "Jane"; String container = 'A. Indexed properties support Integer as index constants only. for First name LastName: string[100]; // 100 characters max. ini, just numerate all strings - read file like text file, find needed section and add same count index like a key, schematically(!): FileString[i]:=inttostr(i Oct 5, 2022 · Interestingly, you can easily create your own text file using a text editor like notepad. When you concatenate the texts of these string lists with a #13 between the r1. Dec 18, 2009 · but can't get answer what i exactly want, so i would like to ask again thanks All. Text:= Ticks. txt'); end; // Save a TStringGrid to a file procedure Aug 29, 2014 · Limited list of words for a text or glyph-based messaging system With SHA-1 broken, can the old Linux /dev/(u)random algorithm be trusted? Reduce a string up to idempotency Feb 25, 2013 · I came up with my own solution, using a TStringList and Name/Value pairs, which seems to work just fine. lines. This is normally the console, but may be overriden to any file using the Assign statement. Text, r2. Feb 11, 2013 · Stream. Is used to write a line of text to a text file with the given FileHandle . Text files provide a simple, convenient way of storing textual data. Jane,Jack'; // This is the string which i need to be searched with string content boolean containerContainsContent = StringUtils. Text := TMyData(TreeView1. Im using it and it works. SetCellsAlignment and TStringGrid. I changed to calling the procedure with a TMemoryStream and altered the procedure to (removing the out): procedure StringToStream(const AString: string; AStream: TMemoryStream); var SS: TStringStream; begin SS := TStringStream. when you have national characters that are encoded in UNICODE as a pair but in AnsiString as a single byte, so you might end up (attempting to) write more bytes than the AnsiString conversion produces. the Delphi equivalent of writeln(lst,'Line of text') will be SendLine('Line of Text'), and equivalent of write(lst,'Part of line of text') will be AddToLine('Part of line of Text'). I store the Item caption in the name, and all the sub columns in the value, then I just parse the value for the individual subitems Here's code for an application you can add to the IDE's Tools menu that might help. Version 2 Is used to write a line of text to a text file with the given FileHandle. Write(SourceBuffer[0], StrLen( You should use a TADOQuery instead of a TADOTable. txt' , and inside text contents looks like. The search continues from the end of the replacement text. You can do what you describe using a string list to load the file and then SplitString from the StrUtils unit to parse the string. It may be omitted in these commands however, since it is the default file. Jul 13, 2013 · Upper method will read all values in section, without keys. g: using the assign operator instead of calling the setter with parenthesis). May 16, 2011 · I read and write to and from the node, something like this: Read: RichEdit1. Dec 12, 2010 · Read better what was written there: not all those effects were due to the console application type. SaveToFile. If you are going to read this string from stream (file) later, then it would be wise to write its length before string body. ToString; Jan 11, 2011 · Here is what the final code looks like after implementing TStringlist. ToString + '. Aug 18, 2014 · Description. Create; try Strings. Sep 10, 2018 · We can't readily give you code because we don't understand your question. Mar 27, 2015 · The correct way for storing your objects into files, streams or blob fields is to first extend your object with additional methods for loading and saving data from your objects fields (objects internal variables) into single memory block. Oct 25, 2013 · I've not tested the speed, but for academic purposes, here's an easy way to split the strings: myStringList. SetCellsAlignment the (-1 < Index) compare was correct, but then and else parts were swapped Jun 13, 2014 · How do I make Delphi write to a text file without erasing the file's previous contents? I already know how to add text but as soon as I try adding more it just replaces the previous text that was already in the file. The WriteLn procedure writes a complete line of data to a text file or to the console. Text and r3. The following code returns an ERegistryException with "invalid datatype" - it seems only to work with datatype REG_SZ: Nov 28, 2012 · AFAIK There's no property you can tweak to insert a row in some position of a StringGrid. <screen> xyz </screen> blah blah <screen> abc </screen> May 13, 2022 · In modern versions of Delphi, this can be achieved by means of inline variable (and constant) declarations: begin // code const Msg = 'Some text ' + (a + b). Maybe, and I know at least one, some other lang allow such overloading, but it's mostly because the "property" attribute (for those lang. DataString property will get the string. type TMyRecord = record FirstName: string[100]; // 100 characters max. Your title asks about the string list but you do absolutely nothing with the string list, beyond creating it and destroying it – Description: The Format function provides 'C' like formatting of multiple of simple data types into a string. It provides very precise control over this formatting. Index specifiers allow several properties to share the same access method while representing different values. Server is Firebird 3. If a "word" is everything between spaces, or "-" in your example, then it becomes a fairly simple task. Text; This works perfect for plain strings, I want to allow Rich Formatted text to be stored in the string, without losing the formatting. Description: The Flush procedure flushes unwritten text file data to disk. Free; end; end; That returns the file's contents in a string which can be indexed and so could be considered to be an array. And that String has to be converted to whatever encoding is used for the file. Some happens when you allocate a console from a GUI app, others if you use a console app to display a GUI. The Write procedure writes a single line of data to a file or to the console. Aug 22, 2010 · This one is a much better solution that the others and on them there was a mistype on procedures TStringGrid. Feb 17, 2016 · No - I don't think there's a faster way that the 2nd option (if you want a completely generic search'n'replace function for any file of any size). #64,#91. Although I didn't use your method(s) (opting instead for copying of library code), yours was the only viable other solution. Write(Str[1], StrLen * SizeOf(Str[1])); Same when reading data back from stream. e. Lines. Version 1. Text; finally Strings. Using pointers is the way to go to solve the problem you've prevented. xml files to a logfile. To give you an idea of the speed - i currently search through 10-20MB files and it takes in the order of milliseconds. Create(AString); try SS. for Last name Age: Byte; DateOfBirth: TDateTime; end; const // if you are using Delphi 2009 and above, // then either change *string[100]* to *AnsiString[100]* or use a different // approach to save the string, read bellow Open a text file to allow appending of text to the end: AssignPrn: Treats the printer as a text file - an easy way of printing text: File: Defines a typed or untyped file: Reset: Open a text file for reading, or binary file for read/write: ReWrite: Open a text or binary file for write access: TextFile: Declares a file type for storing lines of text Jun 3, 2014 · I have Delphi 2007 code that looks like this: procedure WriteString(Stream: TFileStream; var SourceBuffer: PChar; s: string); begin StrPCopy(SourceBuffer,s); Stream. Button2Click(Sender: TObject); begin LoadStringGrid(StringGrid1, 'c:\temp. In Delphi I am looking for a function which returns the inner text and XML of a node as a string. Version 1 Is used to write a line of text to the console. txt'); end; // Load StringGrid1 from 'c:\temp. May 27, 2014 · Unlike in TClientSocket and other socket library implementations, the OnReceive event in TTcpClient DOES NOT trigger when there is new data available to be read. 2. LabelTicks. Feb 5, 2012 · I personally would elect not to use Pascal IO here. Or, as has been said, don't use TextFile at all. . ReadFromFile()), add new strings to the StringList and finally save (StringList. Delphi supports set of AnsiChar, but doesn't support set of WideChar. But the (unicode)string data is actually StrLen * SizeOf(Char) bytes (you have to take the size of the char type into account). I use FireDac components for data access. App must write data from text-file(utf-8) to both blob-fields of "Content" table. It uses memory mapped files and a really fast search engine. containsIgnoreCase(container, content); // I used to write like this in java. Now, this is declared as procedure TextRect(var Rect: TRect; var Text: string; TextFormat: TTextFormat = []). It was posted a while back to one of the CodeGear newsgroups by TeamB member Peter Below: Sep 18, 2013 · hi i am trying to make a delphi program that writes to a text file so far failed to achieve all but one detail is that the program writes well when used several times. I was calling it with just a TStream, which I now realize doesn't make much sense. It is only triggered when ReceiveBuf() is called (which Receiveln() uses internally). Text, the splitting back into string lists based on #13 goes wrong. AppendAllText('C:\users\documents\text. Open a text file for reading, or binary file for read/write: ReWrite: Open a text or binary file for write access: TextFile: Declares a file type for storing lines of text: WriteLn: Write a complete line of data to a text file Aug 21, 2021 · But I want to make it all in 1 button. Selected. It could probably still benifit from some optimization but that will come in time. Jul 22, 2010 · I know this is a very old topic, but I feel like I kinda need to share my code regarding the question. The question asks about how to convert text data into an image, and also says for example, this text (which means it's only an example of the type of text). One hundred-thousandth is a number, but no Delphi numeric type can hold it. Be careful not to use an out-of-range index on the pointer. These can be used to store and display such things as user details, screen titles and so on. Version of Delphi is 10. please note again, directly converting binary data to string will perhaps lead to unspecified reuslt. If you need realy long string in Delphi, you can load it from other resources like a txt files or just plain text with any extension. text > 6 then begin showmessage’please ensure that etc. When you write to a TextFile you are first writing to the buffer. If the file specified by the Path parameter exists, it is overwritten; otherwise the file is created and filled with the given text. You can create "like a" array tables using plain text lines numbers. channelList: TStringList; aCurrentChannel := Stringreplace(channelList. InsertStringAtcaret(MyMemo: TMemo; const MyString: string); begin MyMemo. In delphi code, you can do as @arjen van der Spek and others says only. The input string is not modified. To write string body to stream, you can use the next code: test. Connection has utf encoding. May 5, 2012 · just like others suggested, it's not sense to convert a binary dll to string without encoding. It's not enough with a value of the right type; it must be a variable. But, you can always do a shift in code to make space in the grid for a new row. Text := StringReplace(myStringList. A letter is stored in a single character variable type, such as Char, and words and sentences stored in string types, such as String. To guarantee that the string is unique, call the SetLength, SetString, or UniqueString procedures. Is used to write a line of text to the console. See the documentation (own emphasis):. hello all good day happy is and i want to modify following source to iterate from first index of 'hello all' i mean. WriteString(person1, 'Name', Name. Dec 6, 2012 · I'm working with a Text File in Delphi, and I don't wish to use the method of loading/saving with a string list. hi hi hi and I need to do so. A single quotation mark (') is inserted at the beginning and end of S, and each single quotation mark in the string is repeated. Lists the strings in the TStrings object as a single string with the individual strings delimited by carriage returns and line feeds. Ticks: integer; LabelTicks: TLabel; () LabelTicks. I intend to maintain an open filestream where I read and write my data there, keeping Dec 1, 2015 · See tTextRec. Version 2. IntToStr( Ticks); But: The variable 'Ticks' seems to be an object! I did not expect that, but you can also write. txt': procedure TForm1. ReadInteger; Writeln (AInteger); // read a double and write it to the console ADouble:= BR. You have provided non-real code, but I suspect that "here" is string. Write(PChar(here)^, SizeOf(Char) * Length(here)); P. Sep 1, 2009 · Rather than read and write one character at a time, read and write them all at once: procedure WriteWideString(const ws: WideString; stream: TStream); var nChars: LongInt; begin nChars := Length(ws); stream. Jul 12, 2013 · If the act of replacing an instance of the search string with the replacement happens to create another instance of the search string, it is not searched again. The characters modified are all within the string. If you are using Delphi, you can also take advantage of the Delphi Code Editor. 3. First of all writing it: Let say I have 2 strings I want to save (Name and Lastname). Here are the different text types in Delphi: Jun 4, 2020 · The string is unique - that is, has a reference count of one. The Formatting parameter defines how the Data array is manipulated into the returned string. Apr 10, 2013 · If you are looking for text string searches, look for the Boyer-Moore search algorithm. You have to determine the ANSI code page used on your computer. Related commands Feb 20, 2018 · Unfortunately it doesn't contain read/write procedures for the registry datatype REG_MULTI_SZ (=list of strings). So if we want to write a code compatible with all versions of Delphi, then it should be something like this: Jan 30, 2013 · I would consider using a binary writer for this task. ) is more a syntactic sugar (e. Mar 8, 2013 · I was missing a recursive solution like that: function CountOccurences(const SubText, Text: string): Integer; var PosRes: Integer; begin // Find the position of SubText in Text PosRes := Pos(SubText, Text); // If SubText is not found, return 0 if PosRes = 0 then Result := 0 else // If SubText is found, add 1 and call CountOccurences recursively // for the remaining string after the found The Output variable is predefined by Delphi to refer to the standard text output file. Sven,G. Text, 1, MyMemo. pas unit works from Delphi 6 up to XE6, in both Win32 and Win64 platforms, and does fully support Unicode, even on the Delphi 7 revision you are still using. You can obviously "clear" a file created with Notepad using Delphi, using a dozen different ways (including automating opening the file again with Notepad, selecting all the text, deleting it, and then saving the file with Notepad). WriteAllText has the following parameters: Path is the path to the file. Text,Char(13)+Char(10),',',[rfReplaceAll]); but the last character is coming as , like 1,2, is there anyway to avoid that? Nov 3, 2011 · Unicode, false); try // read an integer and write it to the console AInteger:= BR. Position := 0; AStream Nov 13, 2018 · I have done some Example to convert a string to binary but i couldn't find a way to walk on each character in the string and complete the whole calculations process and then step to the next character in the string, Here is my code: at first i tried to save string into a text file and send it to pronter but printer printed the file name at the top of the file then i tried to create a bitmap image and send it to the machine but the printer is a dot matrix and don't understand the image!! Encodes the given Contents text and writes the obtained text into the Path text file. Use Text to get or set all the strings in the TStrings object in a single string delimited by carriage return, line feed pairs. MyString := RichEdit1. The function searches for all instances of the target string in the input string S. add ( Loadstring ) ; All text is now displayed using chines chars , the file I#m reading for sure is ASCII and Jul 15, 2013 · This would depend entirely on how you define a word and the text from which you wish to pull the words. The var means that the argument you pass must be a variable. How to read not-keyed values - I don't know (if at all it possible in . Jul 26, 2013 · Yes, it matters. That can waste a lot of memory (albeit temporarily) and run slowly if the Memo has a lot of text in it. So it will be clicked everytime: Ini. Text := // copy the text before the caret Copy(MyMemo. – Remy Lebeau Commented Dec 23, 2017 at 0:26 Jun 14, 2015 · I just did my first steps with a 30day test version of Delphi XE8 and figured out that one has to write e. Contents is the string containing the text to be written. Assigns a file handle to a binary or text file: TextFile: Declares a file type for storing lines of text: Write: Write data to a binary or text file: WriteLn: Write a complete line of data to a text file Feb 5, 2017 · String lists use CarriageReturn - LineFeed ( or #13#10) as end-of-line characters as default. As a solution for huge non-format . '; // more code Classical (non-inline) Delphi constant declarations cannot contain non-constant expressions; they are evaluated at compile time. What would happen if you wrote something to T1, and then wrote something else to T2? Now you've got two separate buffers with different text. I am new to Delphi. SelStart) + // then add your string MyString + // and now ad the text from the memo that cames after the caret // Note: if you did have Sep 4, 2011 · The IOUtils unit which was introduced in Delphi 2010 provides some very convenient functions for writing/reading text files: //add the text 'Some text' to the file 'C:\users\documents\test. My rationale is that if I was going to copy code doing basically the same as StrToDate with the added option of specifying the format instead of using a global variable, I prefer it to do exactly the same as the built in one, just not to have it use a May 21, 2018 · I have a list of strings stored in TStringList, i want to convert it into string seperated by commas and i use the following code. I want to know how I can write an Inifile so that I can read from it in order. Sep 5, 2018 · You can use the Delimiter and DelimitedText of a TStringList to do this in a few lines of code - see below. ex. WriteAllText, with one parameter, first creates the Path file, then encodes the specified Contents string using the UTF8 encoding, and then writes the encoded string into the created text file. So following should work: Stream. txt', 'Some text', TEncoding. It also allows you to choose to append to an existing file if you need to, set character encodings for Unicode support, and lets you set a different buffer size (the default is 1024 bytes, or 1K) in its various overloaded Create constructors. LoadFromFile and TStringList. use a encoding schema: e. iu jq kl vh na jb yj bq jj qn