C# Regex append number after “$1” [duplicate]

-1

This question already has an answer here:

Regex.Replace: How to use $groups followed by numbers

3 answers

extern const BP_UINT8 g_SysMapDis_<DIST_N>;

I want to replace the 'DIST_N' with '0' or '1', like:

extern const BP_UINT8 g_SysMapDis_0;

So I do something like this

    Regex REGEX_CODE_BLOCK_DIST_N = new Regex(@"(.+)(<DIST_N>)(.+)");

    int n = 0;

    string codeBlock = "extern const BP_UINT8 g_SysMapDis_<DIST_N>;";

    string ret += REGEX_CODE_BLOCK_DIST_N.Replace(codeBlock, "$1" + n + "$3");

I only get this

$10;// should be "extern const BP_UINT8 g_SysMapDis_0;"

So how to append a number after "$1"?

asked Jan 1 at 7:04

Ansersion

116

marked as duplicate by Wiktor Stribiżew c#
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Jan 1 at 10:47

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

"should be "extern const BP_UINT8 g_SysMapDis_0;" that doesnt have a $1 ?

– Anu Viswan
Jan 1 at 7:13

@AnuViswan, the $1 should be replace with "extern const BP_UINT8 g_SysMapDis_"

– Ansersion
Jan 1 at 7:17

so, is your expected output be "extern const BP_UINT8 g_SysMapDis_$10$3;" or just "extern const BP_UINT8 g_SysMapDis_0;"?

– Anu Viswan
Jan 1 at 7:18

@AnuViswan "extern const BP_UINT8 g_SysMapDis_0;" is what I expect

– Ansersion
Jan 1 at 7:20

I have updated my answer. Kindly check if that resolves your issue

– Anu Viswan
Jan 1 at 7:21

|
show 2 more comments

-1

This question already has an answer here:

Regex.Replace: How to use $groups followed by numbers

3 answers

extern const BP_UINT8 g_SysMapDis_<DIST_N>;

I want to replace the 'DIST_N' with '0' or '1', like:

extern const BP_UINT8 g_SysMapDis_0;

So I do something like this

    Regex REGEX_CODE_BLOCK_DIST_N = new Regex(@"(.+)(<DIST_N>)(.+)");

    int n = 0;

    string codeBlock = "extern const BP_UINT8 g_SysMapDis_<DIST_N>;";

    string ret += REGEX_CODE_BLOCK_DIST_N.Replace(codeBlock, "$1" + n + "$3");

I only get this

$10;// should be "extern const BP_UINT8 g_SysMapDis_0;"

So how to append a number after "$1"?

asked Jan 1 at 7:04

Ansersion

116

marked as duplicate by Wiktor Stribiżew c#
Users with the c# badge can single-handedly close c# questions as duplicates and reopen them as needed.

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Jan 1 at 10:47

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

"should be "extern const BP_UINT8 g_SysMapDis_0;" that doesnt have a $1 ?

– Anu Viswan
Jan 1 at 7:13

@AnuViswan, the $1 should be replace with "extern const BP_UINT8 g_SysMapDis_"

– Ansersion
Jan 1 at 7:17

so, is your expected output be "extern const BP_UINT8 g_SysMapDis_$10$3;" or just "extern const BP_UINT8 g_SysMapDis_0;"?

– Anu Viswan
Jan 1 at 7:18

@AnuViswan "extern const BP_UINT8 g_SysMapDis_0;" is what I expect

– Ansersion
Jan 1 at 7:20

I have updated my answer. Kindly check if that resolves your issue

– Anu Viswan
Jan 1 at 7:21

|
show 2 more comments

-1

This question already has an answer here:

Regex.Replace: How to use $groups followed by numbers

3 answers

extern const BP_UINT8 g_SysMapDis_<DIST_N>;

I want to replace the 'DIST_N' with '0' or '1', like:

extern const BP_UINT8 g_SysMapDis_0;

So I do something like this

    Regex REGEX_CODE_BLOCK_DIST_N = new Regex(@"(.+)(<DIST_N>)(.+)");

    int n = 0;

    string codeBlock = "extern const BP_UINT8 g_SysMapDis_<DIST_N>;";

    string ret += REGEX_CODE_BLOCK_DIST_N.Replace(codeBlock, "$1" + n + "$3");

I only get this

$10;// should be "extern const BP_UINT8 g_SysMapDis_0;"

So how to append a number after "$1"?

asked Jan 1 at 7:04

Ansersion

116

This question already has an answer here:

Regex.Replace: How to use $groups followed by numbers

3 answers

extern const BP_UINT8 g_SysMapDis_<DIST_N>;

I want to replace the 'DIST_N' with '0' or '1', like:

extern const BP_UINT8 g_SysMapDis_0;

So I do something like this

    Regex REGEX_CODE_BLOCK_DIST_N = new Regex(@"(.+)(<DIST_N>)(.+)");

    int n = 0;

    string codeBlock = "extern const BP_UINT8 g_SysMapDis_<DIST_N>;";

    string ret += REGEX_CODE_BLOCK_DIST_N.Replace(codeBlock, "$1" + n + "$3");

I only get this

$10;// should be "extern const BP_UINT8 g_SysMapDis_0;"

So how to append a number after "$1"?

This question already has an answer here:

Regex.Replace: How to use $groups followed by numbers

3 answers

c# regex

asked Jan 1 at 7:04

Ansersion

116

asked Jan 1 at 7:04

Ansersion

116

asked Jan 1 at 7:04

Ansersion

116

asked Jan 1 at 7:04

Ansersion

116

asked Jan 1 at 7:04

Ansersion

116

marked as duplicate by Wiktor Stribiżew c#
Users with the c# badge can single-handedly close c# questions as duplicates and reopen them as needed.

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Jan 1 at 10:47

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

marked as duplicate by Wiktor Stribiżew c#
Users with the c# badge can single-handedly close c# questions as duplicates and reopen them as needed.

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Jan 1 at 10:47

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

"should be "extern const BP_UINT8 g_SysMapDis_0;" that doesnt have a $1 ?

– Anu Viswan
Jan 1 at 7:13

@AnuViswan, the $1 should be replace with "extern const BP_UINT8 g_SysMapDis_"

– Ansersion
Jan 1 at 7:17

so, is your expected output be "extern const BP_UINT8 g_SysMapDis_$10$3;" or just "extern const BP_UINT8 g_SysMapDis_0;"?

– Anu Viswan
Jan 1 at 7:18

@AnuViswan "extern const BP_UINT8 g_SysMapDis_0;" is what I expect

– Ansersion
Jan 1 at 7:20

I have updated my answer. Kindly check if that resolves your issue

– Anu Viswan
Jan 1 at 7:21

|
show 2 more comments

"should be "extern const BP_UINT8 g_SysMapDis_0;" that doesnt have a $1 ?

– Anu Viswan
Jan 1 at 7:13

@AnuViswan, the $1 should be replace with "extern const BP_UINT8 g_SysMapDis_"

– Ansersion
Jan 1 at 7:17

so, is your expected output be "extern const BP_UINT8 g_SysMapDis_$10$3;" or just "extern const BP_UINT8 g_SysMapDis_0;"?

– Anu Viswan
Jan 1 at 7:18

@AnuViswan "extern const BP_UINT8 g_SysMapDis_0;" is what I expect

– Ansersion
Jan 1 at 7:20

I have updated my answer. Kindly check if that resolves your issue

– Anu Viswan
Jan 1 at 7:21

"should be "extern const BP_UINT8 g_SysMapDis_0;" that doesnt have a $1 ?

– Anu Viswan
Jan 1 at 7:13

@AnuViswan, the $1 should be replace with "extern const BP_UINT8 g_SysMapDis_"

– Ansersion
Jan 1 at 7:17

so, is your expected output be "extern const BP_UINT8 g_SysMapDis_$10$3;" or just "extern const BP_UINT8 g_SysMapDis_0;"?

– Anu Viswan
Jan 1 at 7:18

@AnuViswan "extern const BP_UINT8 g_SysMapDis_0;" is what I expect

– Ansersion
Jan 1 at 7:20

I have updated my answer. Kindly check if that resolves your issue

– Anu Viswan
Jan 1 at 7:21

|
show 2 more comments

2 Answers
2

active

oldest

votes

Your regex needs to be following as that is the string you are trying to replace.

"(<DIST_N>)"

Complete Code

Regex REGEX_CODE_BLOCK_DIST_N = new Regex(@"(<DIST_N>)");

int n = 0;

string codeBlock = "extern const BP_UINT8 g_SysMapDis_<DIST_N>;";

string ret = REGEX_CODE_BLOCK_DIST_N.Replace(codeBlock,  n.ToString() );

Output

extern const BP_UINT8 g_SysMapDis_0;

Additional Comment

Please note you could use a more simpler string.Replace in this case, instead of using Regex.

string ret = codeBlock.Replace("<DIST_N>",  n.ToString());

edited Jan 1 at 9:00

answered Jan 1 at 7:16

Anu Viswan

5,6552526

Can't you use just codeBlock.Replace("<DIST_N>", 0)?

– JohnyL
Jan 1 at 8:56

I agree, but the answer was more in line with the original OP. string replace would have been sufficient here. May be i could add it as comment

– Anu Viswan
Jan 1 at 8:59

add a comment |

In this simple case you can use string replace instead of a regex:

string codeBlock = "extern const BP_UINT8 g_SysMapDis_<DIST_N>;";

string ret = codeBlock.Replace("<DIST_N>", "0");

Specifically in your case, your regex replacements string was "$1" + n, which has the value "$10" - so it ended up looking for the 10^th group. The solution is to use "${1}0" instead, separating the group from the following "0". For example:

var s = Regex.Replace("123abc",@"(.)","${1}0");

See also:

Working example

Microsoft Docs - Substitutions in Regular Expressions

answered Jan 1 at 7:30

Kobi

108k34223265

add a comment |

2 Answers
2

active

oldest

votes

2 Answers
2

active

oldest

votes

Your regex needs to be following as that is the string you are trying to replace.

"(<DIST_N>)"

Complete Code

Regex REGEX_CODE_BLOCK_DIST_N = new Regex(@"(<DIST_N>)");

int n = 0;

string codeBlock = "extern const BP_UINT8 g_SysMapDis_<DIST_N>;";

string ret = REGEX_CODE_BLOCK_DIST_N.Replace(codeBlock,  n.ToString() );

Output

extern const BP_UINT8 g_SysMapDis_0;

Additional Comment

Please note you could use a more simpler string.Replace in this case, instead of using Regex.

string ret = codeBlock.Replace("<DIST_N>",  n.ToString());

edited Jan 1 at 9:00

answered Jan 1 at 7:16

Anu Viswan

5,6552526

Can't you use just codeBlock.Replace("<DIST_N>", 0)?

– JohnyL
Jan 1 at 8:56

I agree, but the answer was more in line with the original OP. string replace would have been sufficient here. May be i could add it as comment

– Anu Viswan
Jan 1 at 8:59

add a comment |

Your regex needs to be following as that is the string you are trying to replace.

"(<DIST_N>)"

Complete Code

Regex REGEX_CODE_BLOCK_DIST_N = new Regex(@"(<DIST_N>)");

int n = 0;

string codeBlock = "extern const BP_UINT8 g_SysMapDis_<DIST_N>;";

string ret = REGEX_CODE_BLOCK_DIST_N.Replace(codeBlock,  n.ToString() );

Output

extern const BP_UINT8 g_SysMapDis_0;

Additional Comment

Please note you could use a more simpler string.Replace in this case, instead of using Regex.

string ret = codeBlock.Replace("<DIST_N>",  n.ToString());

edited Jan 1 at 9:00

answered Jan 1 at 7:16

Anu Viswan

5,6552526

Can't you use just codeBlock.Replace("<DIST_N>", 0)?

– JohnyL
Jan 1 at 8:56

I agree, but the answer was more in line with the original OP. string replace would have been sufficient here. May be i could add it as comment

– Anu Viswan
Jan 1 at 8:59

add a comment |

Your regex needs to be following as that is the string you are trying to replace.

"(<DIST_N>)"

Complete Code

Regex REGEX_CODE_BLOCK_DIST_N = new Regex(@"(<DIST_N>)");

int n = 0;

string codeBlock = "extern const BP_UINT8 g_SysMapDis_<DIST_N>;";

string ret = REGEX_CODE_BLOCK_DIST_N.Replace(codeBlock,  n.ToString() );

Output

extern const BP_UINT8 g_SysMapDis_0;

Additional Comment

Please note you could use a more simpler string.Replace in this case, instead of using Regex.

string ret = codeBlock.Replace("<DIST_N>",  n.ToString());

edited Jan 1 at 9:00

answered Jan 1 at 7:16

Anu Viswan

5,6552526

Your regex needs to be following as that is the string you are trying to replace.

"(<DIST_N>)"

Complete Code

Regex REGEX_CODE_BLOCK_DIST_N = new Regex(@"(<DIST_N>)");

int n = 0;

string codeBlock = "extern const BP_UINT8 g_SysMapDis_<DIST_N>;";

string ret = REGEX_CODE_BLOCK_DIST_N.Replace(codeBlock,  n.ToString() );

Output

extern const BP_UINT8 g_SysMapDis_0;

Additional Comment

Please note you could use a more simpler string.Replace in this case, instead of using Regex.

string ret = codeBlock.Replace("<DIST_N>",  n.ToString());

edited Jan 1 at 9:00

answered Jan 1 at 7:16

Anu Viswan

5,6552526

edited Jan 1 at 9:00

answered Jan 1 at 7:16

Anu Viswan

5,6552526

answered Jan 1 at 7:16

Anu Viswan

5,6552526

answered Jan 1 at 7:16

Anu Viswan

5,6552526

Can't you use just codeBlock.Replace("<DIST_N>", 0)?

– JohnyL
Jan 1 at 8:56

I agree, but the answer was more in line with the original OP. string replace would have been sufficient here. May be i could add it as comment

– Anu Viswan
Jan 1 at 8:59

add a comment |

Can't you use just codeBlock.Replace("<DIST_N>", 0)?

– JohnyL
Jan 1 at 8:56

I agree, but the answer was more in line with the original OP. string replace would have been sufficient here. May be i could add it as comment

– Anu Viswan
Jan 1 at 8:59

Can't you use just codeBlock.Replace("<DIST_N>", 0)?

– JohnyL
Jan 1 at 8:56

I agree, but the answer was more in line with the original OP. string replace would have been sufficient here. May be i could add it as comment

– Anu Viswan
Jan 1 at 8:59

add a comment |

In this simple case you can use string replace instead of a regex:

string codeBlock = "extern const BP_UINT8 g_SysMapDis_<DIST_N>;";

string ret = codeBlock.Replace("<DIST_N>", "0");

var s = Regex.Replace("123abc",@"(.)","${1}0");

See also:

Working example

Microsoft Docs - Substitutions in Regular Expressions

answered Jan 1 at 7:30

Kobi

108k34223265

add a comment |

In this simple case you can use string replace instead of a regex:

string codeBlock = "extern const BP_UINT8 g_SysMapDis_<DIST_N>;";

string ret = codeBlock.Replace("<DIST_N>", "0");

var s = Regex.Replace("123abc",@"(.)","${1}0");

See also:

Working example

Microsoft Docs - Substitutions in Regular Expressions

answered Jan 1 at 7:30

Kobi

108k34223265

add a comment |

In this simple case you can use string replace instead of a regex:

string codeBlock = "extern const BP_UINT8 g_SysMapDis_<DIST_N>;";

string ret = codeBlock.Replace("<DIST_N>", "0");

var s = Regex.Replace("123abc",@"(.)","${1}0");

See also:

Working example

Microsoft Docs - Substitutions in Regular Expressions

answered Jan 1 at 7:30

Kobi

108k34223265

In this simple case you can use string replace instead of a regex:

string codeBlock = "extern const BP_UINT8 g_SysMapDis_<DIST_N>;";

string ret = codeBlock.Replace("<DIST_N>", "0");

var s = Regex.Replace("123abc",@"(.)","${1}0");

See also:

Working example

Microsoft Docs - Substitutions in Regular Expressions

answered Jan 1 at 7:30

Kobi

108k34223265

answered Jan 1 at 7:30

Kobi

108k34223265

answered Jan 1 at 7:30

Kobi

108k34223265

answered Jan 1 at 7:30

Kobi

108k34223265

add a comment |

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