---
name: "pcre2_set_character_tables"
section: "3"
platform: "linux"
package: "pcre2"
version: "10.49-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/pcre2_set_character_tables"
---

# pcre2\_set\_character\_tables(3)

Perl-compatible regular expressions (revised API)

## NAME

PCRE2 - Perl-compatible regular expressions (revised API)

## SYNOPSIS

**#include \<pcre2.h\>**

```
int pcre2_set_character_tables(pcre2_compile_context *ccontext,
  const uint8_t *tables);
```

## DESCRIPTION

This function sets a pointer to custom character tables within a compile context. The second argument must point to a set of PCRE2 character tables or be NULL to request the default tables. The result is always zero. Character tables can be created by calling **pcre2\_maketables()** or by running the **pcre2\_dftables** maintenance command in binary mode (see the **pcre2build** documentation).

There is a complete description of the PCRE2 native API in the **pcre2api** page and a description of the POSIX API in the **pcre2posix** page.