FindReplace - Bruce said it couldn't be done...
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From: Leo on 30 Jun 2010 23:14 on 1/07/2010, Karl E. Peterson supposed : > Kevin Provance was thinking very hard : >> "Leo" <ttdhead(a)gmail.com> wrote in message >> news:i0gq49$u7o$1(a)news.eternal-september.org... >>> >>> I would have thaught INSTR would do the trick for finding and using a >>> module level variable for keeping track of where to start searching >>> from and maybe one for the search term too check if we it is a new >>> term/string to search for. >> >> Many moons ago I rolled my own Find/Replace which is no longer used in >> production, but as I never delete anything code wise, I would imagine it's >> still around someplace and would work great with this project. >> >> I guess maybe - considering Karl's events - I would pass the whole text and >> also pass back the position to highlight using the Find/Replace events. >> Replace all I would handle all at once with Replace, allowing for case >> sensitive searches and the like. I guess we would be grateful there isn't >> pattern matching included. >> >> There a bunch of different ways to go here. I have confidence Karl will >> pick (or rather, write) the best. <g> > > It's the "Match whole words only" part where it really gets spooky. <g> I > remember entering a contest Crescent Software held back in the 80s to see who > could write the fastest Word Counter app with QuickBasic. OMG, the issues > come at you fast and furious, and at some point you just have to close your > eyes and *hope*. <g> > > Proposal: Go ahead with Instr, and when you find a match check the character > before and after to see if it's alpha? Would that cover 99% of the cases? > Of course, "back in the day", no one used those funky accented upper-ASCII > things, either. > > And if you *really* wanted to write an all-purpose routine, you'd have to > include full-on Unicode support, too, eh? I have no idea how to define a > "whole word" in that realm. I just did a brisk search of the APIs starting with Is and found IsCharAlphanumeric. Would that help determine a whole word as it uses the settings set in setup or control pannel? -- ClassicVB Users Regroup! comp.lang.basic.visual.misc Free usenet access at http://www.eternal-september.org
From: Leo on 30 Jun 2010 23:28 Leo formulated on Thursday : > Karl E. Peterson has brought this to us : >> Leo formulated on Wednesday : >>> Karl E. Peterson submitted this idea : >>>> Kevin Provance was thinking very hard : >>>>> "Leo" <ttdhead(a)gmail.com> wrote in message >>>>> news:i0gq49$u7o$1(a)news.eternal-september.org... >>>>>> >>>>>> I would have thaught INSTR would do the trick for finding and using a >>>>>> module level variable for keeping track of where to start searching >>>>>> from and maybe one for the search term too check if we it is a new >>>>>> term/string to search for. >>>>> >>>>> Many moons ago I rolled my own Find/Replace which is no longer used in >>>>> production, but as I never delete anything code wise, I would imagine >>>>> it's still around someplace and would work great with this project. >>>>> >>>>> I guess maybe - considering Karl's events - I would pass the whole text >>>>> and also pass back the position to highlight using the Find/Replace >>>>> events. Replace all I would handle all at once with Replace, allowing >>>>> for case sensitive searches and the like. I guess we would be grateful >>>>> there isn't pattern matching included. >>>>> >>>>> There a bunch of different ways to go here. I have confidence Karl will >>>>> pick (or rather, write) the best. <g> >>>> >>>> It's the "Match whole words only" part where it really gets spooky. <g> >>>> I remember entering a contest Crescent Software held back in the 80s to >>>> see who could write the fastest Word Counter app with QuickBasic. OMG, >>>> the issues come at you fast and furious, and at some point you just have >>>> to close your eyes and *hope*. <g> >>>> >>>> Proposal: Go ahead with Instr, and when you find a match check the >>>> character before and after to see if it's alpha? Would that cover 99% of >>>> the cases? Of course, "back in the day", no one used those funky >>>> accented upper-ASCII things, either. >>>> >>>> And if you *really* wanted to write an all-purpose routine, you'd have to >>>> include full-on Unicode support, too, eh? I have no idea how to define a >>>> "whole word" in that realm. >>> >>> If I am reading that correctly, then that isn't what wordpad does. If you >>> say enter 78hello87 into wordpad and search for it, it includes the >>> numbers as part of the word when "Match whole words only" is checked. >> >> Yeah, I'd call those numeric, not alpha. But that's interesting, I'd have >> to try it to really see what you're saying. OTOH, I'd say you have a hit >> if it were "hello!", eh? > > Nope it doesn't find hello in that string so wordpad in an English locale > counts numbers as part of a word. But If I add an _ to the begining and a + > at the end and search for the original string it ignores the two new > characters. You could take a look at IsCharacterAlphaNumeric which is language independant. -- ClassicVB Users Regroup! comp.lang.basic.visual.misc Free usenet access at http://www.eternal-september.org
From: Mayayana on 30 Jun 2010 23:46 Wordpad uses a RichEdit window. You can check the status of characters in a RichEdit with the following code. Put an RTB and a label on a form, paste text into the RTB, then click characters: Private Const WM_USER = &H400 Private Const EM_FINDWORDBREAK = (WM_USER + 76) Private Const WB_CLASSIFY As Long = 3 Private Const WBF_BREAKAFTER As Long = &H40 Private Const WBF_BREAKLINE As Long = &H20 'AKA WBF_WORDBREAK Private Const WBF_ISWHITE As Long = &H10 'AKA WBF_WORDWRAP Private Declare Function SendMessageLong Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long Private Sub RTB_Click() Dim StPt As Long, LRet As Long StPt = RTB.SelStart LRet = SendMessageLong(RTB.hwnd, EM_FINDWORDBREAK, WB_CLASSIFY, StPt) Label1.Caption = CStr(LRet) End Sub Explanation of the different values that show in the label (which are a combination of the WBF flags and the character classification): "A delimiter is a character that marks the end of a word, such as a space. In an edit control, word breaks occur only after delimiters. Word break procedures for rich edit controls also group characters into character classes, each identified by a value in the range 0x00 through 0x0F. Word breaks occur either after delimiters or between characters of different classes. Thus, a word break procedure with different classes for alphanumeric and punctuation characters would find two word breaks in the string "WIN.COM"." If you use the WB_ISDELIMITER flag with EM_FINDWORDBREAK it returns True for a space and False for everything else. But if you use WB_CLASSIFY you can see that alphanumeric characters return 0, while punctuation marks return various values. There's also EM_SETWORDBREAKPROC which allows setting a callback function to take over word break functionality. I've never tried it. The docs seem to imply that your callback would only be called when a line needs to be broken.
From: Kevin Provance on 30 Jun 2010 23:53 I think I found the perfect solution to this, solving all our match case and whole word problems. Thing is, it needs to be a RTB. Notepade doesn't support whole word flags. Want to change this to a RTB example? -- Customer Hatred Knows No Bounds at MSFT Free usenet access at http://www.eternal-september.org ClassicVB Users Regroup! comp.lang.basic.visual.misc Bawwk! Paulie want a dingleball, bawwk! "Karl E. Peterson" <karl(a)exmvps.org> wrote in message news:i0gr46$7hk$1(a)news.eternal-september.org... : Kevin Provance was thinking very hard : : > "Leo" <ttdhead(a)gmail.com> wrote in message : > news:i0gq49$u7o$1(a)news.eternal-september.org... : >> : >> I would have thaught INSTR would do the trick for finding and using a : >> module level variable for keeping track of where to start searching : >> from and maybe one for the search term too check if we it is a new : >> term/string to search for. : > : > Many moons ago I rolled my own Find/Replace which is no longer used in : > production, but as I never delete anything code wise, I would imagine it's : > still around someplace and would work great with this project. : > : > I guess maybe - considering Karl's events - I would pass the whole text and : > also pass back the position to highlight using the Find/Replace events. : > Replace all I would handle all at once with Replace, allowing for case : > sensitive searches and the like. I guess we would be grateful there isn't : > pattern matching included. : > : > There a bunch of different ways to go here. I have confidence Karl will : > pick (or rather, write) the best. <g> : : It's the "Match whole words only" part where it really gets spooky. <g> : I remember entering a contest Crescent Software held back in the 80s : to see who could write the fastest Word Counter app with QuickBasic. : OMG, the issues come at you fast and furious, and at some point you : just have to close your eyes and *hope*. <g> : : Proposal: Go ahead with Instr, and when you find a match check the : character before and after to see if it's alpha? Would that cover 99% : of the cases? Of course, "back in the day", no one used those funky : accented upper-ASCII things, either. : : And if you *really* wanted to write an all-purpose routine, you'd have : to include full-on Unicode support, too, eh? I have no idea how to : define a "whole word" in that realm. : : -- : .NET: It's About Trust! : http://vfred.mvps.org : :
From: Leo on 1 Jul 2010 00:03
It happens that Kevin Provance formulated : > I think I found the perfect solution to this, solving all our match case and > whole word problems. Thing is, it needs to be a RTB. Notepade doesn't > support whole word flags. > > Want to change this to a RTB example? > > -- > Customer Hatred Knows No Bounds at MSFT > Free usenet access at http://www.eternal-september.org > ClassicVB Users Regroup! comp.lang.basic.visual.misc > > Bawwk! Paulie want a dingleball, bawwk! > "Karl E. Peterson" <karl(a)exmvps.org> wrote in message > news:i0gr46$7hk$1(a)news.eternal-september.org... >> Kevin Provance was thinking very hard : >>> "Leo" <ttdhead(a)gmail.com> wrote in message >>> news:i0gq49$u7o$1(a)news.eternal-september.org... >>>> >>>> I would have thaught INSTR would do the trick for finding and using a >>>> module level variable for keeping track of where to start searching >>>> from and maybe one for the search term too check if we it is a new >>>> term/string to search for. >>> >>> Many moons ago I rolled my own Find/Replace which is no longer used in >>> production, but as I never delete anything code wise, I would imagine it's >>> still around someplace and would work great with this project. >>> >>> I guess maybe - considering Karl's events - I would pass the whole text >>> and also pass back the position to highlight using the Find/Replace events. >>> Replace all I would handle all at once with Replace, allowing for case >>> sensitive searches and the like. I guess we would be grateful there isn't >>> pattern matching included. >>> >>> There a bunch of different ways to go here. I have confidence Karl will >>> pick (or rather, write) the best. <g> >> >> It's the "Match whole words only" part where it really gets spooky. <g> >> I remember entering a contest Crescent Software held back in the 80s >> to see who could write the fastest Word Counter app with QuickBasic. >> OMG, the issues come at you fast and furious, and at some point you >> just have to close your eyes and *hope*. <g> >> >> Proposal: Go ahead with Instr, and when you find a match check the >> character before and after to see if it's alpha? Would that cover 99% >> of the cases? Of course, "back in the day", no one used those funky >> accented upper-ASCII things, either. >> >> And if you *really* wanted to write an all-purpose routine, you'd have >> to include full-on Unicode support, too, eh? I have no idea how to >> define a "whole word" in that realm. >> >> -- >> .NET: It's About Trust! >> http://vfred.mvps.org >> >> I think it would be nice to still have it work with a textbox as thats what my app currently uses, but I may convert it to a RTB if I can work out issues. -- ClassicVB Users Regroup! comp.lang.basic.visual.misc Free usenet access at http://www.eternal-september.org |