Module lex 

Lexical analyzer

See the parent module’s documentation to learn how to use the lexer.

Structs

ConfigDeprecated

Configuration for the lexer

Lexer

Lexical analyzer

ParseKeywordError

Error value indicating that a string is not a keyword

ParseOperatorError

Error value indicating that the input string is not a valid operator

PlainLexer

Reference to Lexer with line continuation disabled

Token

Result of lexical analysis produced by the Lexer

TryFromOperatorError

Error value indicating an operand conversion failure

WordLexer

Lexer with additional information for parsing texts and words

Enums

Keyword

Token identifier for reserved words

Operator

Operator token identifier

TokenId

Token identifier, or classification of tokens

WordContext

Context in which a word is parsed

Functions

is_blank

Returns true if the character is a blank character.

is_name

Tests if a string is a valid name.

is_name_char

Tests if a character can be part of a variable name.

is_operator_char

Tests whether the given character is the first character of an operator.

is_portable_name

Tests if a string is a valid POSIXly-portable name.

is_portable_name_char

Tests if a character can be part of a POSIXly-portable name.

is_single_char_name

Tests if a character is a valid single-character raw parameter.

is_special_parameter_char

Tests if a character names a special parameter.

is_token_delimiter_char

Tests whether the given character is a token delimiter.