#include "c.h"
#include <ctype.h>

Include dependency graph for pgstrcasecmp.c:

Functions
int	pg_strcasecmp (const char s1, const char s2)

int	pg_strncasecmp (const char s1, const char s2, size_t n)

unsigned char	pg_toupper (unsigned char ch)

unsigned char	pg_tolower (unsigned char ch)

unsigned char	pg_ascii_toupper (unsigned char ch)

unsigned char	pg_ascii_tolower (unsigned char ch)

Function Documentation

◆ pg_ascii_tolower()

unsigned char pg_ascii_tolower ( unsigned char ch )

Definition at line 146 of file pgstrcasecmp.c.

 {
     if (ch >= 'A' && ch <= 'Z')
         ch += 'a' - 'A';
     return ch;
 }

Referenced by asc_initcap(), asc_tolower(), pg_wc_tolower(), SB_lower_char(), and seq_search_ascii().

◆ pg_ascii_toupper()

unsigned char pg_ascii_toupper ( unsigned char ch )

Definition at line 135 of file pgstrcasecmp.c.

 {
     if (ch >= 'a' && ch <= 'z')
         ch += 'A' - 'a';
     return ch;
 }

Referenced by asc_initcap(), asc_toupper(), filter_list_to_array(), and pg_wc_toupper().

◆ pg_strcasecmp()

int pg_strcasecmp	(	const char *	s1,
		const char *	s2
	)

Definition at line 36 of file pgstrcasecmp.c.

 {
     for (;;)
     {
         unsigned char ch1 = (unsigned char) *s1++;
         unsigned char ch2 = (unsigned char) *s2++;
  
         if (ch1 != ch2)
         {
             if (ch1 >= 'A' && ch1 <= 'Z')
                 ch1 += 'a' - 'A';
             else if (IS_HIGHBIT_SET(ch1) && isupper(ch1))
                 ch1 = tolower(ch1);
  
             if (ch2 >= 'A' && ch2 <= 'Z')
                 ch2 += 'a' - 'A';
             else if (IS_HIGHBIT_SET(ch2) && isupper(ch2))
                 ch2 = tolower(ch2);
  
             if (ch1 != ch2)
                 return (int) ch1 - (int) ch2;
         }
         if (ch1 == 0)
             break;
     }
     return 0;
 }

References IS_HIGHBIT_SET, s1, and s2.

Referenced by AlterType(), appendPGArray(), array_out(), build_startup_packet(), check_createrole_self_grant(), check_datestyle(), check_debug_io_direct(), check_log_destination(), check_publications_origin(), check_usermap(), check_wal_consistency_checking(), comp_keyword_case_hook(), config_enum_lookup_by_name(), convert_any_priv_string(), createdb(), defGetBoolean(), defGetCopyHeaderChoice(), defGetCopyLogVerbosityChoice(), defGetCopyOnErrorChoice(), defGetStreamingMode(), defGetTypeLength(), DefineAggregate(), DefineCollation(), DefineType(), do_pset(), dumpSubscription(), echo_hidden_hook(), echo_hook(), evaluateSleep(), exec_command(), ExecVacuum(), expect_boolean_value(), find_matching_ts_config(), get_collation_actual_version(), get_progname(), GetAttributeStorage(), GetCommandTagEnum(), getMetaCommand(), histcontrol_hook(), hostname_match(), IsReservedOriginName(), locate_stem_module(), lookup_prop_name(), main(), makeVariableValue(), map_typename_pattern(), on_error_rollback_hook(), parse_basebackup_options(), parse_hstore(), parse_one_reloption(), parse_output_parameters(), parse_slash_copy(), parse_subscription_options(), parseArchiveFormat(), parseNameAndArgTypes(), ParseVariableBool(), pg_checksum_parse_type(), pg_fe_sendauth(), pg_find_encoding(), pg_size_bytes(), pg_stat_get_progress_info(), pgp_get_cipher_code(), pgp_get_digest_code(), pgstat_get_kind_from_str(), PGTYPEStimestamp_defmt_scan(), plperl_trigger_handler(), plpgsql_extra_checks_check_hook(), PLy_exec_trigger(), pq_verify_peer_name_matches_certificate_name(), process_backslash_command(), prsd_headline(), px_gen_salt(), px_resolve_alias(), ReadArrayToken(), RegisterCustomRmgr(), show_context_hook(), splitTzLine(), ssl_protocol_version_to_openssl(), sslVerifyProtocolRange(), sslVerifyProtocolVersion(), SyncRepGetStandbyPriority(), unicode_norm_form_from_string(), validate_exec(), variable_is_guc_list_quote(), verbosity_hook(), verify_heapam(), wildcard_certificate_match(), and xmlpi().

◆ pg_strncasecmp()

int pg_strncasecmp	(	const char *	s1,
		const char *	s2,
		size_t	n
	)

Definition at line 69 of file pgstrcasecmp.c.

 {
     while (n-- > 0)
     {
         unsigned char ch1 = (unsigned char) *s1++;
         unsigned char ch2 = (unsigned char) *s2++;
  
         if (ch1 != ch2)
         {
             if (ch1 >= 'A' && ch1 <= 'Z')
                 ch1 += 'a' - 'A';
             else if (IS_HIGHBIT_SET(ch1) && isupper(ch1))
                 ch1 = tolower(ch1);
  
             if (ch2 >= 'A' && ch2 <= 'Z')
                 ch2 += 'a' - 'A';
             else if (IS_HIGHBIT_SET(ch2) && isupper(ch2))
                 ch2 = tolower(ch2);
  
             if (ch1 != ch2)
                 return (int) ch1 - (int) ch2;
         }
         if (ch1 == 0)
             break;
     }
     return 0;
 }

References IS_HIGHBIT_SET, s1, and s2.

Referenced by check_datestyle(), check_special_value(), check_timezone(), command_no_begin(), do_pset(), float4in_internal(), float8in_internal(), get_collation_actual_version(), MainLoop(), makeVariableValue(), map_sql_identifier_to_xml_name(), multirange_in(), numeric_in(), parse_bool_with_len(), parse_jsonb_index_flags(), parse_or_operator(), ParseTzFile(), ParseVariableBool(), range_parse(), replace_guc_value(), scan_directory_ci(), set_unicode_line_style(), set_var_from_str(), and SpecialTags().

◆ pg_tolower()

unsigned char pg_tolower ( unsigned char ch )

Definition at line 122 of file pgstrcasecmp.c.

 {
     if (ch >= 'A' && ch <= 'Z')
         ch += 'a' - 'A';
     else if (IS_HIGHBIT_SET(ch) && isupper(ch))
         ch = tolower(ch);
     return ch;
 }

References IS_HIGHBIT_SET.

Referenced by DecodeTimezoneAbbrevPrefix(), dir_strcmp(), ParseDateTime(), patternToSQLRegex(), PGTYPESdate_defmt_asc(), PQfnumber(), SB_lower_char(), str_initcap(), str_tolower(), and validateTzEntry().

◆ pg_toupper()

unsigned char pg_toupper ( unsigned char ch )

Definition at line 105 of file pgstrcasecmp.c.

 {
     if (ch >= 'a' && ch <= 'z')
         ch += 'A' - 'a';
     else if (IS_HIGHBIT_SET(ch) && islower(ch))
         ch = toupper(ch);
     return ch;
 }