How to escape braces curly brackets in a format string in NET

Question

How can brackets be escaped in using string Format    For example   String val    1 2 3  String Format   foo   0     val      This example doesn t throw an exception  but outputs the string foo  0    Is there a way to escape the brackets

User · Answer

Almost there  The escape sequence for a brace is    or    so for your example you would use   string t    1  2  3   string v   String Format   foo    0      t

User · Answer

Escaping Brackets  String Interpolation          Now  you can also use c  string interpolation like this  feature available in C  6 0   var inVal   1  2  3   var outVal     foo    inVal        Output will be   foo  1  2  3

User · Answer

Yes to output   in string Format you have to escape it like this    So this String val    quot 1 2 3 quot   String Format  quot  foo    0    quot   val    will output  quot foo  1 2 3  quot   BUT you have to know about a design bug in C  which is that by going on the above logic you would assume this below code will print  24 00  int i   24  string str   String Format  quot    0 N    quot   i     gives   N   instead of  24 00   But this prints  N   This is because the way C  parses escape sequences and format characters  To get the desired value in the above case you have to use this instead  String Format  quot  0  1 N  2  quot    quot   quot   i   quot   quot     evaluates to  24 00   Reference Articles String Format gottach and String Formatting FAQ

User · Answer

For you to output foo  1  2  3  you have to do something like   string t    1  2  3   string v   String Format   foo    0      t     To output a   you use    and to output a   you use      or Now  you can also use c  string interpolation like this  feature available in C  6 0   Escaping Brackets  String Interpolation        it is new feature in C  6 0  var inVal    1  2  3   var outVal      foo    inVal        Output will be   foo  1  2  3

User · Answer

Almost there  The escape sequence for a brace is    or    so for your example you would use   string t    1  2  3   string v   String Format   foo    0      t

User · Answer

Almost there  The escape sequence for a brace is    or    so for your example you would use   string t    1  2  3   string v   String Format   foo    0      t

User · Answer

Almost there  The escape sequence for a brace is    or    so for your example you would use   string t    1  2  3   string v   String Format   foo    0      t

User · Answer

Escaping Brackets  String Interpolation          Now  you can also use c  string interpolation like this  feature available in C  6 0   var inVal   1  2  3   var outVal     foo    inVal        Output will be   foo  1  2  3

User · Answer

You can use double open brackets and double closing brackets which will only show one bracket on your page

User · Answer

For you to output foo  1  2  3  you have to do something like   string t    1  2  3   string v   String Format   foo    0      t     To output a   you use    and to output a   you use      or Now  you can also use c  string interpolation like this  feature available in C  6 0   Escaping Brackets  String Interpolation        it is new feature in C  6 0  var inVal    1  2  3   var outVal      foo    inVal        Output will be   foo  1  2  3

User · Answer

My objective   I needed to assign the value   CR  LF   to a string variable delimiter   Code c    string delimiter     CR    LF       Note  To escape special characters normally you have to use   For opening curly bracket    use one extra like     For closing curly bracket    use one extra

User · Answer

Came here in search of how to build json strings ad-hoc  without serializing a class object  in C    In other words  how to escape braces and quotes while using Interpolated Strings in C  and  verbatim string literals   double quoted strings with     prefix   like     var json          name      name

User · Answer

You can use double open brackets and double closing brackets which will only show one bracket on your page

User · Answer

Escaping curly brackets AND using string interpolation makes for an interesting challenge  You need to use quadruple brackets to escape the string interpolation parsing and string format parsing    Escaping Brackets  String Interpolation       and String Format  string localVar    dynamic   string templateString       lt h2 gt  0  lt  h2 gt  lt div gt this is my  localVar  template using a     custom tag     lt  div gt    string result   string Format templateString   String Interpolation        OUTPUT   lt h2 gt String Interpolation lt  h2 gt  lt div gt this is my dynamic template using a  custom tag  lt  div gt

User · Answer

Came here in search of how to build json strings ad-hoc  without serializing a class object  in C    In other words  how to escape braces and quotes while using Interpolated Strings in C  and  verbatim string literals   double quoted strings with     prefix   like     var json          name      name

User · Answer

For you to output foo  1  2  3  you have to do something like   string t    1  2  3   string v   String Format   foo    0      t     To output a   you use    and to output a   you use      or Now  you can also use c  string interpolation like this  feature available in C  6 0   Escaping Brackets  String Interpolation        it is new feature in C  6 0  var inVal    1  2  3   var outVal      foo    inVal        Output will be   foo  1  2  3

User · Answer

or you can use c  string interpolation like this  feature available in C  6 0   var value    1  2  3   var output      foo    value

User · Answer

Yes to output   in string Format you have to escape it like this    So this String val    quot 1 2 3 quot   String Format  quot  foo    0    quot   val    will output  quot foo  1 2 3  quot   BUT you have to know about a design bug in C  which is that by going on the above logic you would assume this below code will print  24 00  int i   24  string str   String Format  quot    0 N    quot   i     gives   N   instead of  24 00   But this prints  N   This is because the way C  parses escape sequences and format characters  To get the desired value in the above case you have to use this instead  String Format  quot  0  1 N  2  quot    quot   quot   i   quot   quot     evaluates to  24 00   Reference Articles String Format gottach and String Formatting FAQ

User · Answer

For you to output foo  1  2  3  you have to do something like   string t    1  2  3   string v   String Format   foo    0      t     To output a   you use    and to output a   you use      or Now  you can also use c  string interpolation like this  feature available in C  6 0   Escaping Brackets  String Interpolation        it is new feature in C  6 0  var inVal    1  2  3   var outVal      foo    inVal        Output will be   foo  1  2  3

User · Answer

TestMethod  public void BraceEscapingTest         var result   String Format  Foo   0      1 2 3        1 2 3  is not parsed     Assert AreEqual  Foo  0    result        result   String Format  Foo    0       1 2 3        Assert AreEqual  Foo  1 2 3    result        result   String Format  Foo  0    bar      1 2 3        Assert AreEqual  Foo 1 2 3  bar    result        result   String Format     0 N      24     24 is not parsed  see  Guru Kara answer     Assert AreEqual   N    result        result   String Format   0  1 N  2         24            Assert AreEqual   24 00    result        result   String Format     0      24 ToString  N         Assert AreEqual   24 00    result

User · Answer

My objective   I needed to assign the value   CR  LF   to a string variable delimiter   Code c    string delimiter     CR    LF       Note  To escape special characters normally you have to use   For opening curly bracket    use one extra like     For closing curly bracket    use one extra

User · Answer

TestMethod  public void BraceEscapingTest         var result   String Format  Foo   0      1 2 3        1 2 3  is not parsed     Assert AreEqual  Foo  0    result        result   String Format  Foo    0       1 2 3        Assert AreEqual  Foo  1 2 3    result        result   String Format  Foo  0    bar      1 2 3        Assert AreEqual  Foo 1 2 3  bar    result        result   String Format     0 N      24     24 is not parsed  see  Guru Kara answer     Assert AreEqual   N    result        result   String Format   0  1 N  2         24            Assert AreEqual   24 00    result        result   String Format     0      24 ToString  N         Assert AreEqual   24 00    result

User · Answer

Escaping curly brackets AND using string interpolation makes for an interesting challenge  You need to use quadruple brackets to escape the string interpolation parsing and string format parsing    Escaping Brackets  String Interpolation       and String Format  string localVar    dynamic   string templateString       lt h2 gt  0  lt  h2 gt  lt div gt this is my  localVar  template using a     custom tag     lt  div gt    string result   string Format templateString   String Interpolation        OUTPUT   lt h2 gt String Interpolation lt  h2 gt  lt div gt this is my dynamic template using a  custom tag  lt  div gt

User · Answer

or you can use c  string interpolation like this  feature available in C  6 0   var value    1  2  3   var output      foo    value

[c#] How to escape braces (curly brackets) in a format string in .NET

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