How do I extract text that lies between parentheses round brackets

Question

I have a string User name  sales  and I want to extract the text between the brackets  how would I do this    I suspect sub-string but I can t work out how to read until the closing bracket  the length of text will vary

User · Answer

using System  using System Text RegularExpressions   private IEnumerable lt string gt  GetSubStrings string input  string start  string end        Regex r   new Regex Regex Escape start                Regex Escape end        MatchCollection matches   r Matches input       foreach  Match match in matches      yield return match Groups 1  Value

User · Answer

The regex method is superior I think  but if you wanted to use the humble substring  string input   my name is  Jayne C    int start   input IndexOf       int stop   input IndexOf       string output   input Substring start 1  stop - start - 1     or  string input    my name is  Jayne C    string output    input Substring input IndexOf       1  input IndexOf     - input IndexOf     - 1

User · Answer

Here is a general purpose readable function that avoids using regex      Returns the text between  start  and  end   string ExtractBetween string text  string start  string end      int iStart   text IndexOf start     iStart    iStart    -1    0   iStart   start Length    int iEnd   text LastIndexOf end     if iEnd    -1          iEnd   text Length        int len   iEnd - iStart     return text Substring iStart  len       To call it in your particular example you can do   string result   ExtractBetween  User name  sales

User · Answer

I came across this while I was looking for a solution to a very similar implementation   Here is a snippet from my actual code  Starts substring from the first char  index 0     string separator     n         line terminator   string output   string input   HowAreYou  nLets go there      output   input Substring 0  input IndexOf separator

User · Answer

I came across this while I was looking for a solution to a very similar implementation   Here is a snippet from my actual code  Starts substring from the first char  index 0     string separator     n         line terminator   string output   string input   HowAreYou  nLets go there      output   input Substring 0  input IndexOf separator

User · Answer

Use a Regular Expression   string test     test     string word   Regex Match test        w       Groups 1  Value  Console WriteLine word

User · Answer

string input    User name  sales     string output   input Substring input IndexOf        1  input IndexOf      - input IndexOf      - 1

User · Answer

int start   input IndexOf        1  int length   input IndexOf      - start  output   input Substring start  length

User · Answer

Use this function   public string GetSubstringByString string a  string b  string c                return c Substring  c IndexOf a    a Length    c IndexOf b  - c IndexOf a  - a Length            and here is the usage   GetSubstringByString            User name  sales      and the output would be   sales

User · Answer

The regex method is superior I think  but if you wanted to use the humble substring  string input   my name is  Jayne C    int start   input IndexOf       int stop   input IndexOf       string output   input Substring start 1  stop - start - 1     or  string input    my name is  Jayne C    string output    input Substring input IndexOf       1  input IndexOf     - input IndexOf     - 1

User · Answer

Much similar to  Gustavo Baiocchi Costa but offset is being calculated with another intermediate Substring  int innerTextStart   input IndexOf  quot   quot     1  int innerTextLength   input Substring start  IndexOf  quot   quot    string output   input Substring innerTextStart  innerTextLength

User · Answer

A very simple way to do it is by using regular expressions   Regex Match  User name  sales                    Groups 1  Value     As a response to the  very funny  comment  here s the same Regex with some explanation                    Escaped parenthesis  means  starts with a     character                   Parentheses in a regex mean  put  capture  the stuff                       in between into the Groups array                    Any character that is not a     character                  Zero or more occurrences of the aforementioned  non     char                   Close the capturing group                   Ends with a     character

User · Answer

A regex maybe  I think this would work         a-z

User · Answer

input Remove input IndexOf       Substring input IndexOf        1

User · Answer

Regular expressions might be the best tool here  If you are not famililar with them  I recommend you install Expresso - a great little regex tool   Something like   Regex regex   new Regex        lt TextInsideBrackets gt   w         string incomingValue    Username  sales    string insideBrackets   null  Match match   regex Match incomingValue   if match Success        insideBrackets   match Groups  TextInsideBrackets   Value

User · Answer

I m finding that regular expressions are extremely useful but very difficult to write   So  I did some research and found this tool that makes writing them so easy     Don t shy away from them because the syntax is difficult to figure out  They can be so powerful

User · Answer

A regex maybe  I think this would work         a-z

User · Answer

input Remove input IndexOf       Substring input IndexOf        1

User · Answer

This code is faster than most solutions here  if not all   packed as String extension method  it does not support recursive nesting   public static string GetNestedString this string str  char start  char end        int s   -1      int i   -1      while    i  lt  str Length          if  str i     start                        s   i              break                int e   -1      while   i  lt  str Length          if  str i     end                        e   i              break                if  e  gt  s          return str Substring s   1  e - s - 1       return null      This one is little longer and slower  but it handles recursive nesting more nicely   public static string GetNestedString this string str  char start  char end        int s   -1      int i   -1      while    i  lt  str Length          if  str i     start                        s   i              break                int e   -1      int depth   0      while    i  lt  str Length          if  str i     end                        e   i              if  depth    0                  break              else                 --depth                    else if  str i     start                depth      if  e  gt  s          return str Substring s   1  e - s - 1       return null

User · Answer

A very simple way to do it is by using regular expressions   Regex Match  User name  sales                    Groups 1  Value     As a response to the  very funny  comment  here s the same Regex with some explanation                    Escaped parenthesis  means  starts with a     character                   Parentheses in a regex mean  put  capture  the stuff                       in between into the Groups array                    Any character that is not a     character                  Zero or more occurrences of the aforementioned  non     char                   Close the capturing group                   Ends with a     character

User · Answer

Assuming that you only have one pair of parenthesis   string s    User name  sales    int start   s IndexOf        1  int end   s IndexOf      start   string result   s Substring start  end - start

User · Answer

Assuming that you only have one pair of parenthesis   string s    User name  sales    int start   s IndexOf        1  int end   s IndexOf      start   string result   s Substring start  end - start

User · Answer

If you wish to stay away from regular expressions  the simplest way I can think of is   string input    User name  sales    string output   input Split           1

User · Answer

using System  using System Text RegularExpressions   private IEnumerable lt string gt  GetSubStrings string input  string start  string end        Regex r   new Regex Regex Escape start                Regex Escape end        MatchCollection matches   r Matches input       foreach  Match match in matches      yield return match Groups 1  Value

User · Answer

string input    User name  sales     string output   input Substring input IndexOf        1  input IndexOf      - input IndexOf      - 1

User · Answer

Regular expressions might be the best tool here  If you are not famililar with them  I recommend you install Expresso - a great little regex tool   Something like   Regex regex   new Regex        lt TextInsideBrackets gt   w         string incomingValue    Username  sales    string insideBrackets   null  Match match   regex Match incomingValue   if match Success        insideBrackets   match Groups  TextInsideBrackets   Value

User · Answer

Much similar to  Gustavo Baiocchi Costa but offset is being calculated with another intermediate Substring  int innerTextStart   input IndexOf  quot   quot     1  int innerTextLength   input Substring start  IndexOf  quot   quot    string output   input Substring innerTextStart  innerTextLength

User · Answer

Regular expressions might be the best tool here  If you are not famililar with them  I recommend you install Expresso - a great little regex tool   Something like   Regex regex   new Regex        lt TextInsideBrackets gt   w         string incomingValue    Username  sales    string insideBrackets   null  Match match   regex Match incomingValue   if match Success        insideBrackets   match Groups  TextInsideBrackets   Value

User · Answer

Here is a general purpose readable function that avoids using regex      Returns the text between  start  and  end   string ExtractBetween string text  string start  string end      int iStart   text IndexOf start     iStart    iStart    -1    0   iStart   start Length    int iEnd   text LastIndexOf end     if iEnd    -1          iEnd   text Length        int len   iEnd - iStart     return text Substring iStart  len       To call it in your particular example you can do   string result   ExtractBetween  User name  sales

User · Answer

string input    User name  sales     string output   input Substring input IndexOf        1  input IndexOf      - input IndexOf      - 1

User · Answer

Use a Regular Expression   string test     test     string word   Regex Match test        w       Groups 1  Value  Console WriteLine word

User · Answer

A regex maybe  I think this would work         a-z

User · Answer

int start   input IndexOf        1  int length   input IndexOf      - start  output   input Substring start  length

User · Answer

input Remove input IndexOf       Substring input IndexOf        1

User · Answer

Use a Regular Expression   string test     test     string word   Regex Match test        w       Groups 1  Value  Console WriteLine word

User · Answer

A very simple way to do it is by using regular expressions   Regex Match  User name  sales                    Groups 1  Value     As a response to the  very funny  comment  here s the same Regex with some explanation                    Escaped parenthesis  means  starts with a     character                   Parentheses in a regex mean  put  capture  the stuff                       in between into the Groups array                    Any character that is not a     character                  Zero or more occurrences of the aforementioned  non     char                   Close the capturing group                   Ends with a     character

User · Answer

Regular expressions might be the best tool here  If you are not famililar with them  I recommend you install Expresso - a great little regex tool   Something like   Regex regex   new Regex        lt TextInsideBrackets gt   w         string incomingValue    Username  sales    string insideBrackets   null  Match match   regex Match incomingValue   if match Success        insideBrackets   match Groups  TextInsideBrackets   Value

User · Answer

The regex method is superior I think  but if you wanted to use the humble substring  string input   my name is  Jayne C    int start   input IndexOf       int stop   input IndexOf       string output   input Substring start 1  stop - start - 1     or  string input    my name is  Jayne C    string output    input Substring input IndexOf       1  input IndexOf     - input IndexOf     - 1

User · Answer

I m finding that regular expressions are extremely useful but very difficult to write   So  I did some research and found this tool that makes writing them so easy     Don t shy away from them because the syntax is difficult to figure out  They can be so powerful

User · Answer

Use a Regular Expression   string test     test     string word   Regex Match test        w       Groups 1  Value  Console WriteLine word

User · Answer

This code is faster than most solutions here  if not all   packed as String extension method  it does not support recursive nesting   public static string GetNestedString this string str  char start  char end        int s   -1      int i   -1      while    i  lt  str Length          if  str i     start                        s   i              break                int e   -1      while   i  lt  str Length          if  str i     end                        e   i              break                if  e  gt  s          return str Substring s   1  e - s - 1       return null      This one is little longer and slower  but it handles recursive nesting more nicely   public static string GetNestedString this string str  char start  char end        int s   -1      int i   -1      while    i  lt  str Length          if  str i     start                        s   i              break                int e   -1      int depth   0      while    i  lt  str Length          if  str i     end                        e   i              if  depth    0                  break              else                 --depth                    else if  str i     start                depth      if  e  gt  s          return str Substring s   1  e - s - 1       return null

User · Answer

Assuming that you only have one pair of parenthesis   string s    User name  sales    int start   s IndexOf        1  int end   s IndexOf      start   string result   s Substring start  end - start

User · Answer

If you wish to stay away from regular expressions  the simplest way I can think of is   string input    User name  sales    string output   input Split           1

User · Answer

A very simple way to do it is by using regular expressions   Regex Match  User name  sales                    Groups 1  Value     As a response to the  very funny  comment  here s the same Regex with some explanation                    Escaped parenthesis  means  starts with a     character                   Parentheses in a regex mean  put  capture  the stuff                       in between into the Groups array                    Any character that is not a     character                  Zero or more occurrences of the aforementioned  non     char                   Close the capturing group                   Ends with a     character

User · Answer

input Remove input IndexOf       Substring input IndexOf        1

User · Answer

Use this function   public string GetSubstringByString string a  string b  string c                return c Substring  c IndexOf a    a Length    c IndexOf b  - c IndexOf a  - a Length            and here is the usage   GetSubstringByString            User name  sales      and the output would be   sales

User · Answer

The regex method is superior I think  but if you wanted to use the humble substring  string input   my name is  Jayne C    int start   input IndexOf       int stop   input IndexOf       string output   input Substring start 1  stop - start - 1     or  string input    my name is  Jayne C    string output    input Substring input IndexOf       1  input IndexOf     - input IndexOf     - 1

User · Answer

Assuming that you only have one pair of parenthesis   string s    User name  sales    int start   s IndexOf        1  int end   s IndexOf      start   string result   s Substring start  end - start

User · Answer

string input    User name  sales     string output   input Substring input IndexOf        1  input IndexOf      - input IndexOf      - 1

User · Answer

A regex maybe  I think this would work         a-z

[c#] How do I extract text that lies between parentheses (round brackets)?

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