StiLexer Class

Namespace: Stimulsoft.Base

Performs the lexical analysis.

Constructors

Constructor Description
StiLexer(string textValue) Creates a new instance of the StiLexer class.

StiLexer(textValue: string)

Creates a new instance of the StiLexer class.

Parameters

  • textValue (string) — The Text for lexical analysis.

Properties

Property Type Description
IsVB bool  
PositionInText int Gets or sets current position in text.

Methods

Method Returns Description
GetAllTokens static List<StiToken>  
GetPosition StiPosition Gets position of token in text.
GetToken StiToken Gets next token.
IdentExists static bool  
ReplaceWithNotEqualPrefix void Replaces all occurrences of a specified String, with another specified string. Before oldValue must not follow specified prefix - string.
ReplaceWithPrefix static (+1 overloads) string Replaces all occurrences of a specified String, with another specified String. Before oldValue must follow specified prefix - token. Replacing is produced with provision for tokens.
Reset void Reset state.
SavePosToken void Saves position of token in text.
ScanChar StiToken Scans the symbol.
ScanIdent StiToken Scans the identifier.
ScanInterpolatedString StiToken Scans an interpolated string, which begins with $” and can contain expressions in { }.
ScanNumber StiToken Scans the number.
ScanString StiToken Scans the string.
SkipWhitespaceAndComments void Skips all whitespace and comments (both single-line and multi-line).
UngetToken void Returns to previous token.
WaitAssign2 bool Wait the assign.
WaitComma2 bool Wait the right bracket.
WaitLbrace2 bool Wait the left brace.
WaitLparen2 bool Wait the left paren.
WaitRbrace2 bool Wait the right brace.
WaitRparen2 bool Wait the right paren.
WaitSemicolon2 bool Wait the semicolon.

Method Details

GetAllTokens static

GetAllTokens(str: string): List<StiToken>

Parameters

  • str (string)

Returns List<StiToken>

GetPosition

GetPosition(positionInText: int): StiPosition

Gets position of token in text.

Parameters

  • positionInText (int) — Position in text.

Returns StiPosition — Position of token in text.

GetToken

GetToken(): StiToken

Gets next token.

Returns StiToken — Next token.

IdentExists static

IdentExists(str: string, name: string, caseSensitive: bool): bool

Parameters

  • str (string)
  • name (string)
  • caseSensitive (bool)

Returns bool

ReplaceWithNotEqualPrefix

ReplaceWithNotEqualPrefix(prefix: StiTokenType, oldValue: string, newValue: string): void

Replaces all occurrences of a specified String, with another specified string. Before oldValue must not follow specified prefix - string.

Parameters

  • prefix (StiTokenType) — Prefix - string.
  • oldValue (string) — A String to be replaced.
  • newValue (string) — A String to replace all occurrences of oldValue.

ReplaceWithPrefix static

ReplaceWithPrefix(textValue: string, prefix: string, oldValue: string, newValue: string): string

Replaces all occurrences of a specified String, with another specified String. Before oldValue must follow specified prefix - token. Replacing is produced with provision for tokens.

Parameters

  • textValue (string) — Text for replace.
  • prefix (string) — Prefix - token.
  • oldValue (string) — A String to be replaced.
  • newValue (string) — A String to replace all occurrences of oldValue.

Returns string — Replaced string.

ReplaceWithPrefix(prefix: string, oldValue: string, newValue: string): void

Replaces all occurrences of a specified String, with another specified string. Before oldValue must follow specified prefix - string. Replacing is produced with provision for tokens.

Parameters

  • prefix (string) — Prefix - string.
  • oldValue (string) — A String to be replaced.
  • newValue (string) — A String to replace all occurrences of oldValue.

Reset

Reset(): void

Reset state.

SavePosToken

SavePosToken(): void

Saves position of token in text.

ScanChar

ScanChar(): StiToken

Scans the symbol.

Returns StiToken — Token containing symbol.

ScanIdent

ScanIdent(): StiToken

Scans the identifier.

Returns StiToken — Token containing identifier.

ScanInterpolatedString

ScanInterpolatedString(): StiToken

Scans an interpolated string, which begins with $” and can contain expressions in { }.

Returns StiToken — Token containing the interpolated string content.

ScanNumber

ScanNumber(): StiToken

Scans the number.

Returns StiToken — Token containing number.

ScanString

ScanString(): StiToken

Scans the string.

Returns StiToken — Token containing string.

SkipWhitespaceAndComments

SkipWhitespaceAndComments(): void

Skips all whitespace and comments (both single-line and multi-line).

UngetToken

UngetToken(): void

Returns to previous token.

WaitAssign2

WaitAssign2(): bool

Wait the assign.

Returns bool

WaitComma2

WaitComma2(): bool

Wait the right bracket.

Returns bool

WaitLbrace2

WaitLbrace2(): bool

Wait the left brace.

Returns bool

WaitLparen2

WaitLparen2(): bool

Wait the left paren.

Returns bool

WaitRbrace2

WaitRbrace2(): bool

Wait the right brace.

Returns bool

WaitRparen2

WaitRparen2(): bool

Wait the right paren.

Returns bool

WaitSemicolon2

WaitSemicolon2(): bool

Wait the semicolon.

Returns bool