Checking of User's Commands in METHEDAS

Wang Xiumei; Shen Yiping

doi:10.13374/j.issn1001-053x.1986.s2.004

Volume 8 Issue S2

Nov. 2021

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Article Navigation > Chinese Journal of Engineering > 1986 > 8(S2): 14-22

Wang Xiumei, Shen Yiping. Checking of User's Commands in METHEDAS[J]. Chinese Journal of Engineering, 1986, 8(S2): 14-22. doi: 10.13374/j.issn1001-053x.1986.s2.004

Citation:

Wang Xiumei, Shen Yiping. Checking of User's Commands in METHEDAS[J]. Chinese Journal of Engineering, 1986, 8(S2): 14-22. doi: 10.13374/j.issn1001-053x.1986.s2.004

Wang Xiumei, Shen Yiping. Checking of User's Commands in METHEDAS[J]. Chinese Journal of Engineering, 1986, 8(S2): 14-22. doi: 10.13374/j.issn1001-053x.1986.s2.004

Citation:

Wang Xiumei, Shen Yiping. Checking of User's Commands in METHEDAS[J]. Chinese Journal of Engineering, 1986, 8(S2): 14-22. doi: 10.13374/j.issn1001-053x.1986.s2.004

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Checking of User's Commands in METHEDAS

doi: 10.13374/j.issn1001-053x.1986.s2.004

Available Online: 2021-11-15

Abstract

Abstract

Checking of user's commands in METHEDAS is the main subject in this paper.On basis of the syntactic structures of user's commands, the checking on following items:
1. command keywords and formats
2. parameter keywords, formats and their data types
3. rules of jointing commands with parameters
is completed by means of a code conversion module and a syntax parsing module, which compose an interpreter.
This interpreter, constructed within the FORTRAN-4 framework, is very successful in its simplicity, usefulness, and ability of simulating the string processing function, possessed by FORTRAN-77.