Text command analyzing and processing method

Abstract

The present invention provides a text command analyzing and processing method, which comprises the following procedures: when a character stream which contains text command strings is received, the text command strings are identified one by one from the character stream and are withdrawn, and the text command strings are stored in a buffer; a text command string waiting for processing is taken out of the buffer, and according to the grammar rule of the text command strings, a lexical analyzer makes a lexical analysis for the text command string waiting for processing, to obtain a command vocabulary; a grammar analyzer makes a grammar analysis for each command vocabulary in the command vocabulary, to obtain a grammar parsing tree; a semantic processor traverses the grammar parsing tree, to find a semantic attribute corresponding to each node, thus the accuracy of the command analyzing and the time efficiency are greatly improved through the present invention, and the analysis to the command strings with a complex nested structure can be realized.

Description

technical field [0001] The invention relates to the lexical, grammatical analysis technology and semantic processing technology of any interface protocol message based on the text command mode in the network communication system, and more specifically, relates to a text command parsing and processing method. Background technique [0002] Modern data communication equipment such as switches, routers, etc. widely use man-machine command interface technology, which provides users with a simple and powerful way to operate and maintain equipment; communication between equipment developed by different manufacturers is also widely used based on plain text commands The interface protocol, which has the advantage of being cross-platform. [0003] At present, the main problem of many man-machine command interface systems in text command parsing is that they do not use compiling technology to parse command strings, but use symbol string search to process them, which leads to inaccurate...

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Problems solved by technology

[0004] In addition, in the prior art, there is no special discussion on the syntax and semantic processing technology of text commands with nested structures. However, text commands with nested structures have broad application prospects, especially for protocol communication between network element devices. For example, the application product provisioning database program (Provisioning Database Application, PDBA) provided by Tekelec company, if the system of other companies wants to access the data in PDBA, it must connect to the PDBA server as a client, through the provisioning database interface (Provisioning Database Interface, PDBI) interface protocol Communicate with it, and the PDBI interface protocol uses a text command format with a complex nested structure

[0005] Therefore, the prior art or method cannot correctly parse this text command string

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