System.Text.RegularExpressions - Regular expression to match C #include file

Regular expression to match C #include file

^\s*\#include\s+["<]([^">]+)*[">] You then want to look at the first capture group when you get a match. You don't say what language you're using, the factor you mention regcomp() leads me to believe that you're using POSIX regex library in C. If that's right, then you want to use the regexec function and use the nmatch and pmatch parameters to get the first capture group.

Tags: #c, #file, #include, #language, #parsing, #programming, #source code, #text. Views: 4084. stackoverflow, 7/12/2015
Link 1: http://www.systemtextregularexpressions.com/m15/regular-expression-to-match-c-include-file
Link 2: http://www.systemtextregularexpressions.com/m15 (short)

Value

Index

Length

Groups

Captures

#include <stdio.h>

Groups [2]

Captures [1]

#include "monkey/chicken.h"

Groups [2]

Captures [1]

Count: 2, Time: 00:00:00

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//.NET Regex.Match Online Tester: www.systemtextregularexpressions.com

//Namespace
using System.Text.RegularExpressions;

//Regex Pattern
string pattern = @"^\s*\#include\s+["<]([^">]+)*[">]$";

//Regex example #1
Regex r = new Regex(@"^\s*\#include\s+["<]([^">]+)*[">]$", RegexOptions.Multiline);
Match m1 = r.Match("input text");
MatchCollection mc1 = r.Matches("input text");

//Regex example #2
Match m2 = Regex.Match("input text", @"^\s*\#include\s+["<]([^">]+)*[">]$", RegexOptions.Multiline);
MatchCollection mc2 = Regex.Matches("input text", @"^\s*\#include\s+["<]([^">]+)*[">]$", RegexOptions.Multiline);

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'.NET Regex.Match Online Tester: www.systemtextregularexpressions.com

'Namespace
Imports System.Text.RegularExpressions

'Regex Pattern
Dim pattern As String = "^\s*\#include\s+["<]([^">]+)*[">]$"

'Regex example #1
Dim r As Regex = New Regex("^\s*\#include\s+["<]([^">]+)*[">]$", RegexOptions.Multiline)
Dim m1 As Match = r.Match("input text")
Dim mc As MatchCollection = r.Matches("input text")

'Regex example #2
Dim m2 As Match = Regex.Match("input text", "^\s*\#include\s+["<]([^">]+)*[">]$", RegexOptions.Multiline)
Dim mc2 As MatchCollection = Regex.Matches("input text", "^\s*\#include\s+["<]([^">]+)*[">]$", RegexOptions.Multiline)

System.Text.RegularExpressions .NET Regex.Match

Regular expression to match C #include file

IsMatch=true

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