|  | reflex::regex_error Class Reference updated Thu Jun 19 2025 by Robert van Engelen |

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reflex::regex_error Class Reference

Regex syntax error exceptions. More...

`#include <error.h>`

Inheritance diagram for reflex::regex_error:
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Collaboration diagram for reflex::regex_error:
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## Public Member Functions

| regex_error (regex_error_type code, const std::string &pattern, size_t pos=0)
| Construct regex error info. More...
| regex_error (regex_error_type code, const char *pattern, size_t pos=0)
| Construct regex error info. More...
| regex_error (const char *message, const std::string &pattern, size_t pos=0)
| Construct regex error info. More...
| regex_error (const char *message, const char *pattern, size_t pos=0)
| Construct regex error info. More...
regex_error_type | code () const
| Returns error code, a reflex::regex_error_type constant. More...
size_t | pos () const
| Returns position of the error in the regex. More...

## Static Public Attributes

static const regex_error_type | mismatched_parens = 0
| mismatched ( ) More...
static const regex_error_type | mismatched_braces = 1
| mismatched { } More...
static const regex_error_type | mismatched_brackets = 2
| mismatched [ ] More...
static const regex_error_type | mismatched_quotation = 3
| mismatched `\Q...\E` or `"..."` quotation More...
static const regex_error_type | empty_expression = 4
| regex (sub)expression should not be empty More...
static const regex_error_type | empty_class = 5
| class `[...]` is empty, e.g. `[a&&[b]]` More...
static const regex_error_type | invalid_class = 6
| invalid character class name or code point More...
static const regex_error_type | invalid_class_range = 7
| invalid character class range, e.g. `[Z-A]` More...
static const regex_error_type | invalid_escape = 8
| invalid escape character More...
static const regex_error_type | invalid_anchor = 9
| invalid anchor More...
static const regex_error_type | invalid_repeat = 10
| invalid repeat range, e.g. `{10,1}` More...
static const regex_error_type | invalid_quantifier = 11
| invalid lazy/possessive quantifier More...
static const regex_error_type | invalid_modifier = 12
| invalid `(?ismx:)` modifier More...
static const regex_error_type | invalid_collating = 13
| invalid collating element [[.name.]] More...
static const regex_error_type | invalid_backreference = 14
| invalid backreference More...
static const regex_error_type | invalid_syntax = 15
| invalid regex syntax More...
static const regex_error_type | exceeds_length = 16
| regex exceeds length limit (reflex::Pattern class only) More...
static const regex_error_type | exceeds_limits = 17
| regex exceeds complexity limits (reflex::Pattern class only) More...
static const regex_error_type | undefined_name = 18
| undefined macro name (reflex tool only) More...
static const regex_error_type | save_tables = 19
| cannot save tables to file More...
static const regex_error_type | load_tables = 20

## Static Private Member Functions

static std::string | regex_error_message_code (regex_error_type code, const char *pattern, size_t pos)
static std::string | regex_error_message (const char *message, const char *pattern, size_t pos)
static size_t | displen (const char *s, size_t k)
static const char * | disppos (const char *s, size_t k)

## Private Attributes

regex_error_type | code_
size_t | pos_

## Detailed Description

Regex syntax error exceptions.

## Constructor & Destructor Documentation

reflex::regex_error::regex_error | ( | regex_error_type | code,
|  | const std::string & | pattern,
|  | size_t | pos = `0`
| ) |  |

inline

Construct regex error info.

reflex::regex_error::regex_error | ( | regex_error_type | code,
|  | const char * | pattern,
|  | size_t | pos = `0`
| ) |  |

inline

Construct regex error info.

reflex::regex_error::regex_error | ( | const char * | message,
|  | const std::string & | pattern,
|  | size_t | pos = `0`
| ) |  |

inline

Construct regex error info.

reflex::regex_error::regex_error | ( | const char * | message,
|  | const char * | pattern,
|  | size_t | pos = `0`
| ) |  |

inline

Construct regex error info.

## Member Function Documentation

regex_error_type reflex::regex_error::code | ( |  | ) | const

inline

Returns error code, a reflex::regex_error_type constant.

static size_t reflex::regex_error::displen | ( | const char * | s,
|  | size_t | k
| ) |  |

staticprivate

static const char* reflex::regex_error::disppos | ( | const char * | s,
|  | size_t | k
| ) |  |

staticprivate

size_t reflex::regex_error::pos | ( |  | ) | const

inline

Returns position of the error in the regex.

static std::string reflex::regex_error::regex_error_message | ( | const char * | message,
|  | const char * | pattern,
|  | size_t | pos
| ) |  |

staticprivate

static std::string reflex::regex_error::regex_error_message_code | ( | regex_error_type | code,
|  | const char * | pattern,
|  | size_t | pos
| ) |  |

staticprivate

## Member Data Documentation

regex_error_type reflex::regex_error::code_

private

const regex_error_type reflex::regex_error::empty_class = 5

static

class `[...]` is empty, e.g. `[a&&[b]]`

const regex_error_type reflex::regex_error::empty_expression = 4

static

regex (sub)expression should not be empty

const regex_error_type reflex::regex_error::exceeds_length = 16

static

regex exceeds length limit (reflex::Pattern class only)

const regex_error_type reflex::regex_error::exceeds_limits = 17

static

regex exceeds complexity limits (reflex::Pattern class only)

const regex_error_type reflex::regex_error::invalid_anchor = 9

static

invalid anchor

const regex_error_type reflex::regex_error::invalid_backreference = 14

static

invalid backreference

const regex_error_type reflex::regex_error::invalid_class = 6

static

invalid character class name or code point

const regex_error_type reflex::regex_error::invalid_class_range = 7

static

invalid character class range, e.g. `[Z-A]`

const regex_error_type reflex::regex_error::invalid_collating = 13

static

invalid collating element [[.name.]]

const regex_error_type reflex::regex_error::invalid_escape = 8

static

invalid escape character

const regex_error_type reflex::regex_error::invalid_modifier = 12

static

invalid `(?ismx:)` modifier

const regex_error_type reflex::regex_error::invalid_quantifier = 11

static

invalid lazy/possessive quantifier

const regex_error_type reflex::regex_error::invalid_repeat = 10

static

invalid repeat range, e.g. `{10,1}`

const regex_error_type reflex::regex_error::invalid_syntax = 15

static

invalid regex syntax

const regex_error_type reflex::regex_error::load_tables = 20

static

cannot load tables from predictor string

const regex_error_type reflex::regex_error::mismatched_braces = 1

static

mismatched { }

const regex_error_type reflex::regex_error::mismatched_brackets = 2

static

mismatched [ ]

const regex_error_type reflex::regex_error::mismatched_parens = 0

static

mismatched ( )

const regex_error_type reflex::regex_error::mismatched_quotation = 3

static

mismatched `\Q...\E` or `"..."` quotation

size_t reflex::regex_error::pos_

private

const regex_error_type reflex::regex_error::save_tables = 19

static

cannot save tables to file

const regex_error_type reflex::regex_error::undefined_name = 18

static

undefined macro name (reflex tool only)

The documentation for this class was generated from the following file:

- error.h