ParserInput class

Input Management

Constructors

ParserInput(String input, Contexts context)
Receives the input string and the environment information and reset pointers.

Properties

autoCommentAbsorb ↔ bool
If true, skipWhiteSpace store the comments for further conversion to Comment node
read / write
commentStore ↔ List<CommentPointer>
Store for comments found with skipWhiteSpace, waiting to be converted to Comment node if possible
read / write
context Contexts
Environment variables
read / write
finished ↔ bool
End of input reached in processing
read / write
furthest ↔ int
Furthest index the parser has gone to
read / write
furthestPossibleErrorMessage ↔ String
If this is furthest we got to, this is the probably cause
read / write
i ↔ int
Current index in input
read / write
input → String
Input string with Less code
final
isEmpty → bool
The input pointer is at end
read-only
isNotEmpty → bool
The input pointer is not at end
read-only
saveStack ↔ List<int>
Holds state for backtracking
read / write
hashCode → int
The hash code for this object.
read-only, inherited
runtimeType → Type
A representation of the runtime type of the object.
read-only, inherited

Methods

$char(String tok) → String
Returns a String if tok character is found. [...]
$parseUntil({String tok, RegExp tokre }) → List<ParseUntilReturnItem>
Permissive parsing. Ignores everything except matching {} [] () and quotes until matching token (outside of blocks) [...]
$quoted({bool skip: true }) → String
Returns a quoted "..." or '...' string if found, else null. If skip == false, don't move the pointer (i) with skipWhitespace, so, point to the first "|' character.
$re(RegExp reg, [ int index ]) → dynamic
Specialization of $(tok). [...]
$reMatch(RegExp reg) → Match
Returns the raw match for reg Regular Expression
$str(String tok) → String
Returns tok if found at current position
charAt(int pos) → String
Get the character in pos [...]
charCodeAt(int pos) → int
Get the character code in the pos
charCodeAtPos() → int
Get the character code in the actual position
currentChar() → String
Get the character in the actual position
end() ParserStatus
Check if we are at the end of input. Returns the status.
error(String msg, [ String type ]) → Null
Thow a error message
expect(dynamic arg, [ String msg, int index ]) → dynamic
Search for something and throw error if not found [...]
expectChar(String arg, [ String msg ]) → String
Search for arg and returns it if found. Else throw error with the msg
forget() → void
Remove input pointer from stack
getInput() → String
Returns the input String
isFinished() → void
If i is smaller than the input.length - 1, it means the parser wasn't able to parse the whole string, so we've got a parsing error. [...]
isWhitespace([int offset = 0 ]) → bool
Char at pos + offset is 32 (space), 13 (CR), 9 (tab) or 10 (LF)
isWhitespacePos() → bool
is white space in the actual position
isWhitespacePrevPos() → bool
is White Space Previous Position
nextChar() → String
Get the next character, from the actual position
peek(dynamic tok) → bool
Same as $(), but don't change the state of the parser, just return the match. tok = String | RegExp
peekChar(String tok) → bool
Specialization of peek(), searching for String tok
peekNotNumeric() → bool
Test if current char is not a number
prevChar() → String
Get the previous character, from the actual position
restore([String possibleErrorMessage ]) → void
restore input pointers from stack
save() → void
save input pointers in stack
showAround([int gap = 20 ]) → String
For debug, show the input around the currentChar +- gap
skipWhitespace(int newi) → void
Assure the input pointer is not a white space. Move forward if one is found.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed.
inherited
toString() → String
Returns a string representation of this object.
inherited

Operators

operator ==(dynamic other) → bool
The equality operator.
inherited