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Method and apparatus for program development using a grammar-sensitive editor

  • US 6,016,467 A
  • Filed: 05/27/1997
  • Issued: 01/18/2000
  • Est. Priority Date: 05/27/1997
  • Status: Expired due to Fees
First Claim
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1. A method of performing grammar sensitive editing of user input represented by one or more tokens, said method comprising the steps of:

  • detecting a trigger event;

    performing, in response to detection of said trigger event, lexical and syntactical analysis of said user input;

    transmitting, responsive to detection of an erroneous token by said performing step, one or more valid language options for use in place of said erroneous token; and

    transmitting, responsive to detection of no erroneous tokens by said performing step, one or more subsequent language options;

    wherein the step of transmitting one or more language options and the step of transmitting one or more subsequent language options include transmitting a menu of one or more symbols based upon grammar rules defining syntax rules of input language, said menu including one or more first right hand side symbols corresponding to an expanded non-terminal symbol in accordance with said grammar rules defining syntax rules of said input language.

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