Boost.Regex is a C++ regular expression library with optional Unicode support through ICU.
Boost.Regex is a C++ regular expression library with optional Unicode support through ICU.
Questions tagged [boost-regex]
296 questions
1
vote
1 answer
My last regular expression won't work but i cannot figure out the reason why
I have two vectors, one which holds my regular expressions and one which holds the string in which will be checked against the regular expression, most of them work fine except for this one (shown below) the string is a correct string and matches…
CodersSC
- 710
- 2
- 13
- 29
1
vote
2 answers
set boost regex from foreign source
I need to parse log and I`ve good working regex, but now I need to set regex from config file and here is problem.
int logParser()
{
std::string bd_regex; // this reads from config in other part of program
boost::regex parsReg;
…
Nobody
- 11
- 3
1
vote
2 answers
Trying to duplicate lines and parse list in NPP
Given a list of profile image links in markdown with varying name lengths:
![[Last, First.jpg]]
![[Longerlast, Longerfirst.jpg]]
etc
How can I convert to the following using regex in NPP?
![[Last, First.jpg]]
::Last, First
Jesse Stallings
- 13
- 2
1
vote
1 answer
boost::algorithim::split_regex
For the function
boost::split_regex(std::vector, std::string, std::string);
I end up with Empty tokens and I would like to compress them, but unlike boost::split, I cannot find a token_compress_on option for regex_split. As it is still…
Warren Niles
- 184
- 9
1
vote
1 answer
Thread safety of boost::regex_match
ThreadSanitizer gives me an alleged race condition in boost::regex_match. Is this a false positive? I cannot find synchronization primitives that depend on BOOST_HAS_THREADS in the callstacks. All input parameters are on the stack of the respective…
Desperado17
- 835
- 6
- 12
1
vote
2 answers
Constructing boost regex
I want to match every single number in the following string:
-0.237522264173E+01 0.110011117918E+01 0.563118085683E-01 0.540571836345E-01 -0.237680494785E+01 0.109394729137E+01 -0.237680494785E+01 0.109394729137E+01 0.392277532367E+02 …
user312650
1
vote
0 answers
Boost DYN_LNK vs. USE_DLL vs. USE_LIB
What is the difference between the following defines:
#define BOOST_REGEX_DYN_LNK
#define BOOST_REGEX_USE_DLL
#define BOOST_REGEX_USE_LIB
(regex was chosen arbitrarily)?
Which of them auto-link the project with libboost*.lib, boost*.lib, boost*.dll…
Marc Andreson
- 3,405
- 5
- 35
- 51
1
vote
1 answer
How to store intermediate values of circular buffer iterator?
I am a using a boost regex on a boost circular buffer and would like to "remember" positions where matches occur, what's the best way to do this? I tried the code below, but "end" seems to store the same values all the time! When I try to traverse…
Abryan
- 27
- 8
1
vote
1 answer
Boost regexp how to translate such PHP unescape function to C++?
Whe I had to create CMS in PHP I created simple unescape html function that looked like this:
function unescape($s) {
$s= preg_replace('/%u(....)/', '&#x$1;', $s);
$s= preg_replace('/%(..)/', '&#x$1;', $s);
return $s;
}
How to translate it…
Rella
- 65,003
- 109
- 363
- 636
1
vote
1 answer
What would be Boost::regexp analog for PHP`preg_match_all`function?
So I have such php function I want to translate to C++:
protected function htmlTag($content, $tag, $attrName, $attrValue, $valueName)
{
preg_match_all("#<{$tag}[^>]*$attrName=['\"].*?$attrValue.*?['\"][^>]*$valueName=['\"](.+?)['\"][^>]*/?>#i",…
Rella
- 65,003
- 109
- 363
- 636
1
vote
1 answer
boost regex iterator returning empty string
I am a beginner to regex in c++ I was wondering why this code:
#include
#include
#include
int main() {
std::string s = "? 8==2 : true ! false";
boost::regex…
Ashtyn
- 29
- 4
1
vote
2 answers
boost xpressive: wrong match?
I want to match a simple expression with boost, but it behaves strange... The code below should match and display "a" from first and second strings:
#include
#include
#include "stdio.h"
using namespace…
Jakub M.
- 32,471
- 48
- 110
- 179
1
vote
1 answer
Invalid read size 1 in valgrind using boost::smatch
I am using boost::smatch object to get the matching pattern from boost::regex_match and use that matching pattern string for further operations. It's working fine in a normal run, but when I use Valgrind for memory checking it is showing an error in…
Bhoopesh Dewangan
- 15
- 3
1
vote
2 answers
When should I prefer boost::regex ( or boost::xpressive) over boost::algorithm
I thought the boost regex engines would be faster than boost::algorithm
This simple test shows algo beating the regex engines by a wide margin
This is the entire test program Did I miss something?
#include "boost/algorithm/string.hpp"
#include…
user754425
- 437
- 1
- 4
- 10
1
vote
1 answer
Help with boost::regex trim
This regex will trim the string at line breaks. I want it to trim both end only and preserve any line breaks in the middle.
string s(" Stack \n Overflow ");
boost::regex expr("^[ \t]+|[ \t]+$");
std::string fmt("");
cout <<…
user754425
- 437
- 1
- 4
- 10