Re: Grep question [parsing variables] problem
This WebDNA talk-list message is from 2003
It keeps the original formatting.
numero = 47292
interpreted = N
texte = However there is a solution that replaces it in one run, regardless of the tags matching:[text]set_main_txt=[grep search=\[(\/?[bBiI])\]&replace=<\1>][text_main][/grep][/text]GyuriJohn Peacock wrote:> Palle Bo Nielsen wrote:>>> Hi John,>>>> Well it should have stated...>>>> this is a test [b]with bold [i]and bold italic[/i] words[/b]>>>> My bad when I wrote the mail to the list... but it still don't work...>>> Nor should it. You will have to replace the nested context first, or > else it will not work. In general, you will be unable to use grep to > manage nested search and replace; you really need to use a finite > state machine to do this in a consistent way. Here's why:>>>>> [!] -- REPLACE [b] WITH
(ignore case) text [/!]>> [text]set_main_txt=[grep >> search=\[[bB]\]([^[unurl]%5B[/unurl]]*)\[/[bB]\]&replace=\1 >> b>][text]set_main_txt[/text][/grep][/text]>>> This part of the regex:>> \[[bB]\]([^[unurl]%5B[/unurl]]*)>> matches this part of the original text:>> [b]with bold [>> but since there isn't an immediately trailing [/b], the search fails > and hence the replace never happens.>> You will have to do 4 searchs: 1 for each leading and trailing tag:>> [text]set_main_txt=[grep > search=\[[bB]\]&replace=[text]set_main_txt[/text][/grep][/text]> [text]set_main_txt=[grep > search=\[/[bB]\]&replace=[text]set_main_txt[/text][/grep][/text]>> [text]set_main_txt=[grep > search=\[[iI]\]&replace=[text]set_main_txt[/text][/grep][/text]> [text]set_main_txt=[grep > search=\[/[iI]\]&replace=[text]set_main_txt[/text][/grep][/text]>> However, this would still not _disply_ correctly if, as you originally > posted, one of the closing tags was missing (the rest of the page > would be boldface).>> HTH>> John>-- Gyuri OrdodyObjects Online, Inc.-------------------------------------------------------------This message is sent to you because you are subscribed to the mailing list .To unsubscribe, E-mail to: To switch to the DIGEST mode, E-mail to Web Archive of this list is at: http://webdna.smithmicro.com/
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However there is a solution that replaces it in one run, regardless of the tags matching:[text]set_main_txt=[grep search=\[(\/?[bBiI])\]&replace=<\1>][text_main][/grep][/text]GyuriJohn Peacock wrote:> Palle Bo Nielsen wrote:>>> Hi John,>>>> Well it should have stated...>>>> this is a test [b]with bold [i]and bold italic[/i] words[/b]>>>> My bad when I wrote the mail to the list... but it still don't work...>>> Nor should it. You will have to replace the nested context first, or > else it will not work. In general, you will be unable to use grep to > manage nested search and replace; you really need to use a finite > state machine to do this in a consistent way. Here's why:>>>>> [!] -- REPLACE [b] WITH (ignore case) text [/!]>> [text]set_main_txt=[grep >> search=\[[bB]\]([^[unurl]%5B[/unurl]]*)\[/[bB]\]&replace=\1 >> b>][text]set_main_txt[/text][/grep][/text]>>> This part of the regex:>> \[[bB]\]([^[unurl]%5B[/unurl]]*)>> matches this part of the original text:>> [b]with bold [>> but since there isn't an immediately trailing [/b], the search fails > and hence the replace never happens.>> You will have to do 4 searchs: 1 for each leading and trailing tag:>> [text]set_main_txt=[grep > search=\[[bB]\]&replace=[text]set_main_txt[/text][/grep][/text]> [text]set_main_txt=[grep > search=\[/[bB]\]&replace=[text]set_main_txt[/text][/grep][/text]>> [text]set_main_txt=[grep > search=\[[iI]\]&replace=[text]set_main_txt[/text][/grep][/text]> [text]set_main_txt=[grep > search=\[/[iI]\]&replace=[text]set_main_txt[/text][/grep][/text]>> However, this would still not _disply_ correctly if, as you originally > posted, one of the closing tags was missing (the rest of the page > would be boldface).>> HTH>> John>-- Gyuri OrdodyObjects Online, Inc.-------------------------------------------------------------This message is sent to you because you are subscribed to the mailing list .To unsubscribe, E-mail to: To switch to the DIGEST mode, E-mail to Web Archive of this list is at: http://webdna.smithmicro.com/
Gyuri
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