Abstract Syntax Tree Interpreter for Valid HTML Generation

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Solution Overview

Problem

Conventional template processing systems fail to generate valid HTML documents using compiled template objects and abstract syntax trees, and lack an interpreter to traverse the abstract syntax tree and produce a valid HTML document.

Innovation Solution

A method and system that involve receiving a request from a browser, generating an abstract syntax tree with nodes representing HTML elements, traversing the tree to determine node types, and using compiled template objects to generate a valid HTML document, which is then sent for display.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If conventional template processing systems are used, then template compilation is simplified, but valid HTML documents cannot be generated

Engineering Contradiction:
ImproveHTML document validityVSAvoidsystem complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

An interpreter is introduced as an intermediary component between the template compiler and the rendering engine. The interpreter receives abstract syntax trees from the compiler, validates them, and generates proper HTML documents. This mediator ensures HTML validity without requiring the entire system to become more complex, as the interpreter handles validation logic in a dedicated module.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The template processing system is segmented into distinct components: template compilation, abstract syntax tree generation, interpretation/validation, and HTML rendering. By separating the validation and interpretation functions from the compilation process, the system can generate valid HTML documents while maintaining modular architecture that prevents overall system complexity from escalating.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If template building and compilation are coupled with rendering, then processing is simplified, but dynamic rendering and valid HTML generation are compromised

Engineering Contradiction:
Improvedynamic rendering capabilityVSAvoidprocessing pipeline complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The processing pipeline is divided into separate stages: template compilation produces abstract syntax trees, which are then passed to an interpreter that validates and transforms them into proper HTML. This segmentation allows dynamic rendering capabilities to be added in the interpretation stage without complicating the compilation stage, enabling adaptability while managing complexity through clear phase separation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Template compilation performs preliminary actions by generating abstract syntax trees that capture the template structure without immediate rendering. The interpretation phase then performs preliminary validation and transformation before final HTML generation. This preliminary action approach allows dynamic rendering preparation without coupling compilation and rendering, maintaining versatility while controlling pipeline complexity.

Inventive Principle:
Principle #10Preliminary action

3Manufacturing precision

If an interpreter traverses the abstract syntax tree, then valid HTML documents are generated, but processing time increases

Engineering Contradiction:
ImproveHTML document validityVSAvoiddocument generation time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The interpreter performs validation and HTML generation actions during the interpretation phase, which occurs after compilation but before final rendering. By performing these actions in a dedicated preliminary phase, the system ensures HTML validity without requiring repeated validation during rendering, thus minimizing time loss while maintaining document validity.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The interpreter is designed to self-validate abstract syntax trees and self-correct structural issues during traversal, generating valid HTML without requiring external validation passes. This self-service approach ensures HTML document validity while minimizing processing time by eliminating redundant validation steps that would otherwise increase generation time.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS9026903B1Abstract syntax tree interpreter for generating a valid HTML document
Publication Date: 2015.05.05 GOOGLE LLC
  • US9026903B1 patent drawing
  • US9026903B1 patent drawing
  • US9026903B1 patent drawing

AI summary

A system, method, and a computer-readable medium for generating a valid HTML document. The method includes receiving a request from a browser and, in response, providing an abstract syntax tree, the abstract syntax tree including a plurality of nodes, where each node represents an element in a template file. The method also includes, traversing the abstract syntax tree, and for each node in the tree determining a type of the node and performing an action based on the node type. The method further includes generating the valid HTML document based on the plurality of actions and sending the valid HTML document for display to a browser.