---
name: "shevek_regexp"
section: "3"
platform: "linux"
package: "libshevek-doc"
version: "1.4-1"
release: "Debian 8 (Jessie)"
platforms: ["linux"]
url: "https://new.carta.tech/shevek_regexp"
---

# shevek\_regexp(3)

Use regular expressions.

## NAME

shevek::regexp -

Use regular expressions.

## SYNOPSIS

`#include <regexp.hh>`

### Public Member Functions

**regexp** (std::string const &**pattern**=std::string(), bool **case\_sensitive**=false)\
 *Create a new object, and optionally fill it with a pattern.*  **regexp** & **operator=** (std::string const &**pattern**)\
 *Set a pattern, removing the previous one.*  **regexp** (**regexp** const &that)\
 *Copy a regexp.*  **regexp** & **operator=** (**regexp** const &that)\
 *Copy a regexp.*  void **case\_sensitive** (bool value=true)\
 *Set whether the evaluation should be case sensitive.*  **~regexp** ()\
 *Destructor, this cleans up internal structures.*  bool **operator()** (std::string const &data)\
 *Check whether the pattern matches a string, and fill internal match structures if it does.*  std::string **operator\[\]** (unsigned idx) const \
 *Retrieve the value of a subexpression from the last matched string.*  bool **valid** (unsigned idx) const \
 *Test whether a subexpression was filled by the last matching string.*  unsigned **size** () const \
 *Get the number of subexpression.*  std::string **transform** (std::string const &data) const \
 *Transform a string with -codes according to the last matching string.*  std::string const & **pattern** () const \
 *Get the current pattern.*

## Detailed Description

Use regular expressions.

## Member Function Documentation

### std::string shevek::regexp::operator\[\] (unsignedidx) const

Retrieve the value of a subexpression from the last matched string. This throws an exception if the subexpression is not valid.

## Author

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