System and method for lexing and parsing program annotations
US6353925B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1999 |
| Grant date | Mar 5, 2002 |
| Priority date | — |
| Expiry date | Sep 22, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F8/427
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
When a source program containing annotations is processed by a user-selected tool, the annotations in the source program are detected by a lexer and passed to an annotation processor corresponding to the selected tool. The system contains a number of annotation processors and a number of program processing tools, and the annotation processor to which the annotations are passed is selected based upon the user-selected tool. The selected annotation processor converts annotations compatible with the user-selected tool into annotation tokens and returns the annotation tokens to the lexer. The lexer generates tokens based upon the programming-language statements in the source program, and passes both the tokens and annotation tokens to a parser. The parser, in turn, assembles the tokens and annotation tokens into an abstract syntax tree, which is then passed to the user-selected tool for further processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.