Namespace Azos.Text

Classes

CompilingExpressionEvaluator<TContext, TResult, TArg>

Implements an evaluator that compiles all expressions represented by instances of this class in a certain scope into dynamic assemblies. Every unique scope name creates a separate assembly. The compilation of scope is triggered either by a call to Compile() or first attempt to call Evaluate() on any instance within a scope. Once a scope has been compiled, no further allocations in this scoped are allowed, this is because CLR does not allow to unload assemblies dynamically. Within an expression context is passed as "ctx" and argument as "arg". This class is thread-safe.

DataEntryUtils

Provides misc data-entry parsing routines

Evaluator

Evaluator.Node

Node class represents evaluation b-tree element

NaturalTextGenerator

Generates human-readable English text for tests

SealedString.Scope

Represents a scope of a SealedString creation that tracks the existing strings. Use Seal(string) to get an existing string or create a new one. Do not persist the instance of Scope for a long time as it accumulates references (string keys) that pressure the GC. This class is used in batched that create many sealed strings. Once those strings rae created the scope can be released.

Stripper

Strips JavaScript content off comments and whitespaces

TokenParser

TokenParser class translates tokenized content string to an array list of parsed tokens with attributes

TokenParser.Token

Token class holds parsed token info along with an array of attributes

TokenParser.Token.Attribute

Attribute class represents token's attribute

Utils

Structs

SealedString

Represents an immutable string data that is stored in an efficient way that relieves the GC pressure. The string can not be changed or deleted. Once created it stays as-is until the process is terminated. This structure is used to store much dictionary data (100s of millions of strings) in the process without causing GC overload. Note: The default .ctor DOES NOT check whether the same string is already present in memory. Use SealedString.Scope to store unique strings only (avoid the repetitions). This struct is THREAD SAFE and NOT SERIALIZABLE.

Enums

CharCodes

Declares common char codes

Delegates

IdentifierLookup

Evaluator class performs math and logical expression parsing and evaluation without allocating .NET compilers