The HTML documentation for PCRE2 consists of a number of pages that are listed below in alphabetical order. If you are new to PCRE2, please read the first one first.
| pcre2 | Introductory page |
| pcre2-config | Information about the installation configuration |
| pcre2api | PCRE2's native API |
| pcre2build | Building PCRE2 |
| pcre2callout | The callout facility |
| pcre2compat | Compability with Perl |
| pcre2demo | A demonstration C program that uses the PCRE2 library |
| pcre2grep | The pcre2grep command |
| pcre2jit | Discussion of the just-in-time optimization support |
| pcre2limits | Details of size and other limits |
| pcre2matching | Discussion of the two matching algorithms |
| pcre2partial | Using PCRE2 for partial matching |
| pcre2pattern | Specification of the regular expressions supported by PCRE2 |
| pcre2perform | Some comments on performance |
| pcre2posix | The POSIX API to the PCRE2 8-bit library |
| pcre2sample | Discussion of the pcre2demo program |
| pcre2serialize | Serializing functions for saving precompiled patterns |
| pcre2stack | Discussion of PCRE2's stack usage |
| pcre2syntax | Syntax quick-reference summary |
| pcre2test | The pcre2test command for testing PCRE2 |
| pcre2unicode | Discussion of Unicode and UTF-8/UTF-16/UTF-32 support |
There are also individual pages that summarize the interface for each function in the library.
| pcre2_callout_enumerate | Enumerate callouts in a compiled pattern |
| pcre2_code_copy | Copy a compiled pattern |
| pcre2_code_copy_with_tables | Copy a compiled pattern and its character tables |
| pcre2_code_free | Free a compiled pattern |
| pcre2_compile | Compile a regular expression pattern |
| pcre2_compile_context_copy | Copy a compile context |
| pcre2_compile_context_create | Create a compile context |
| pcre2_compile_context_free | Free a compile context |
| pcre2_config | Show build-time configuration options |
| pcre2_dfa_match | Match a compiled pattern to a subject string (DFA algorithm; not Perl compatible) |
| pcre2_general_context_copy | Copy a general context |
| pcre2_general_context_create | Create a general context |
| pcre2_general_context_free | Free a general context |
| pcre2_get_error_message | Free study data |
| pcre2_get_mark | Get a (*MARK) name |
| pcre2_get_ovector_count | Get the ovector count |
| pcre2_get_ovector_pointer | Get a pointer to the ovector |
| pcre2_get_startchar | Get the starting character offset |
| pcre2_jit_compile | Process a compiled pattern with the JIT compiler |
| pcre2_jit_free_unused_memory | Free unused JIT memory |
| pcre2_jit_match | Fast path interface to JIT matching |
| pcre2_jit_stack_assign | Assign stack for JIT matching |
| pcre2_jit_stack_create | Create a stack for JIT matching |
| pcre2_jit_stack_free | Free a JIT matching stack |
| pcre2_maketables | Build character tables in current locale |
| pcre2_match | Match a compiled pattern to a subject string (Perl compatible) |
| pcre2_match_context_copy | Copy a match context |
| pcre2_match_context_create | Create a match context |
| pcre2_match_context_free | Free a match context |
| pcre2_match_data_create | Create a match data block |
| pcre2_match_data_create_from_pattern | Create a match data block getting size from pattern |
| pcre2_match_data_free | Free a match data block |
| pcre2_pattern_info | Extract information about a pattern |
| pcre2_serialize_decode | Decode serialized compiled patterns |
| pcre2_serialize_encode | Serialize compiled patterns for save/restore |
| pcre2_serialize_free | Free serialized compiled patterns |
| pcre2_serialize_get_number_of_codes | Get number of serialized compiled patterns |
| pcre2_set_bsr | Set \R convention |
| pcre2_set_callout | Set up a callout function |
| pcre2_set_character_tables | Set character tables |
| pcre2_set_compile_recursion_guard | Set up a compile recursion guard function |
| pcre2_set_depth_limit | Set the match backtracking depth limit |
| pcre2_set_match_limit | Set the match limit |
| pcre2_set_max_pattern_length | Set the maximum length of pattern |
| pcre2_set_newline | Set the newline convention |
| pcre2_set_offset_limit | Set the offset limit |
| pcre2_set_parens_nest_limit | Set the parentheses nesting limit |
| pcre2_set_recursion_limit | Obsolete: use pcre2_set_depth_limit |
| pcre2_set_recursion_memory_management | Obsolete function that (from 10.30 onwards) does nothing |
| pcre2_substitute | Match a compiled pattern to a subject string and do substitutions |
| pcre2_substring_copy_byname | Extract named substring into given buffer |
| pcre2_substring_copy_bynumber | Extract numbered substring into given buffer |
| pcre2_substring_free | Free extracted substring |
| pcre2_substring_get_byname | Extract named substring into new memory |
| pcre2_substring_get_bynumber | Extract numbered substring into new memory |
| pcre2_substring_length_byname | Find length of named substring |
| pcre2_substring_length_bynumber | Find length of numbered substring |
| pcre2_substring_list_free | Free list of extracted substrings |
| pcre2_substring_list_get | Extract all substrings into new memory |
| pcre2_substring_nametable_scan | Find table entries for given string name |
| pcre2_substring_number_from_name | Convert captured string name to number |