classLexHeader

packages/sql-parser/src/MySql/Source/LexHeader.php:20

final class LexHeader

Restricted visibility: declared "@visibility root". Code outside that scope must not name this declaration.

Extracts the keyword tables from MySQL's sql/lex.h.

Releases before 8.0 keep two arrays, symbols[] for keywords and sql_functions[] for function names. From 8.0 on a single array marks each entry with its group: SYM and SYM_HK are keywords, SYM_FN are function names, and SYM_H are optimizer hints, which the SQL lexer never produces.

Methods§

public function parse(string $source): array{keywords: array<string, string>, functions: array<string, string>}

source §

Reads the keyword tables.

Parameters

$source string Contents of `lex.h`

Returns

array{keywords: array<string, string>, functions: array<string, string>} Terminal name by upper-cased spelling

Throws

RuntimeException When the file declares no keyword

Test cases 3

Calls 4

function-call strpos line 33
method-call LexHeader::entries() line 36
new RuntimeException line 47
function-call ksort line 49

public function entries(string $source): list<array{string, string, string, int}>

source §

Reads every keyword entry, in either release's spelling.

An entry may span two lines, so the whole file is searched and each entry is reported with the offset it was found at.

Parameters

$source string Contents of `lex.h`

Returns

list<array{string, string, string, int}> Macro, upper-cased spelling, terminal and offset of each entry

Test cases 1

LexHeaderTest::testEntries calls

Called from 1

method-call SqlParser\MySql\Source\LexHeader::parse() packages/sql-parser/src/MySql/Source/LexHeader.php:36

Calls 2

function-call preg_match_all line 68
function-call strtoupper line 70

Test cases 4§

Test cases that cover or call this symbol, from the coverage report and from the analyzed test sources.

Dedicated tests 4