Converting String Characters into Regular Expression Automatically?

Hi guys.... is there any program or sample coding which is available to convert string characters into regular expression automatically when the program is run?
Example:
String Character Input: fnffffffffffnnnnnnnnnffffffnnfnnnnnnnnnfnnfnfnfffnfnfnfnfnfnnnnd
When the program runs, it automatically convert into this :
Regular Expression Output: f*d

hey guys.... i am sorry for not providing all the information that you guys need as i was rushing off to urgent meeting... for my string characters i only have a to n.. all these characters are collected from sensors and stored inside database... from many demos i have done... i found out that every demo has different strings of characters collected and these string of characters will not match with the regular expressions that i had created due to several unwanted inputs and stuff... i have a lot of different types of plan activities and therefore a lot of regular expressions.... if i put [a-z|0-9]*... it will capture all characters but in the same time it will be showing 1 plan only.... therefore, i am finding ways to get the strings i collected and let it form into regular expression by themselves in the program so that it will appear as different plans as output with comparing with the regular expression that i had created.... is there any way to do so?
please post again if there is any questions u are still not familiar with... thank you...

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SSU wrote:
Hello Everyone,
I am trying to write a function by using oracles regular expression function REGEXP_REPLACE but I could not succed till now.
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Hi Winston,
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It seems that using groupCount() to eliminate the unwanted text does not work in this case, since all the lines returned the same value. Ie 3 posted earlier. This may be because the patterns are complex and only a few were grouped together. Otherwise, could you provide an example using the string posted as opposed to a hyperthetic one. In the meantime, at least one solution have been found by defining an additional special pattern “\\A[^%].*\\Z”, before combining / intersecting both existing and the new special pattern to get the best of both world. Another approach that should also work is to evaluate the size of String.split() and only accept those lines with a minimum number of tokens.
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enrico wrote:
That isLetter() method is very useful but it sees the white spaces are "non letters".
I am a bit lost at this point, i'm trying a lot of methods of String and Character but nothing seems to work
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Expression:
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Hi
I have text like this "<a>45</a><ct>Hi</ct><R>45 85</R><H>Here</H>" .I want to extract using regular expression or any techniques the text between <R> and </R> also need to replace the space with pipe between 45 and 85 like "45|85"
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Hi,
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CREATE OR REPLACE
type RDW.STAFF_MEMBER_BREAKDOWN_RECORD is object
( survey_i_id number,
survey_id number,
client number,
company number,
csg number,
contact number,
pred_mode_type number,
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type RDW.STAFF_MEMBER_BREAKDOWN_TABLE
is table of staff_member_breakdown_record;
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as
type staff_teams_cur_type is ref cursor;
end refcur_pkg;
CREATE OR REPLACE function RDW.parse_teams
(staff_teams_cur refcur_pkg.staff_teams_cur_type)
return staff_member_breakdown_table
pipelined
is
v_survey_i_id NUMBER;
v_survey_id NUMBER;
v_client NUMBER;
v_company NUMBER;
v_csg NUMBER;
v_contact NUMBER;
v_pred_mode_type NUMBER;
v_team_members_r VARCHAR2(2000);
v_team_members VARCHAR2(2000);
cnt NUMBER;
exit_flag NUMBER;
begin
loop
fetch staff_teams_cur into v_survey_i_id,v_survey_id ,v_client,v_company,v_csg,v_contact,v_pred_mode_type,v_team_members;
exit when staff_teams_cur%notfound;
exit_flag := 0;
v_team_members_r := ltrim(v_team_members,'#') ;
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Converting String Characters into Regular Expression Automatically?

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