We consider briefly some of the problems encountered in the initial implementation of a system to automatically convert Fortran programs to Algol 68.
我们简要地考虑了在初始实现将Fortran程序自动转换为Algol 68的系统时遇到的一些问题。
{"title":"Some problems concerning the automatic translation of Fortran to Algol 68","authors":"J. A. Prudom, M. Hennell","doi":"10.1145/800238.807153","DOIUrl":"https://doi.org/10.1145/800238.807153","url":null,"abstract":"We consider briefly some of the problems encountered in the initial implementation of a system to automatically convert Fortran programs to Algol 68.","PeriodicalId":226613,"journal":{"name":"Strathclyde ALGOL 68 Conference","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1977-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127976887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
An album of modes, operators and procedures has been implemented to provide SNOBOL-like character string pattern matching facilities for the Algol 68 programmer. Most of the primitive functions and operators of SNOBOL 4 are included in the album. This paper describes some of the facilities available and briefly outlines their implementation.
{"title":"Character string pattern matching in Algol 68","authors":"R. J. W. Housden, N. Kotarski","doi":"10.1145/800238.807154","DOIUrl":"https://doi.org/10.1145/800238.807154","url":null,"abstract":"An album of modes, operators and procedures has been implemented to provide SNOBOL-like character string pattern matching facilities for the Algol 68 programmer. Most of the primitive functions and operators of SNOBOL 4 are included in the album. This paper describes some of the facilities available and briefly outlines their implementation.","PeriodicalId":226613,"journal":{"name":"Strathclyde ALGOL 68 Conference","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1977-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132983675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In many situations the atoms in a list can require a considerable amount of storage space or can be difficult to evaluate. When handling algorithms which only refer to a few atoms of a list much time and space can be wasted if the whole list is stored. In this paper an attempt is made to store lists as procedures which are only evaluated if absolutely necessary. The difficulties which arise when programming such a list processor in Algol 68 are caused by inherent scoping problems. A solution is presented for linear lists together with an example based on the processing of an infinite list.
{"title":"Using procedures in list processing","authors":"V. J. Rayward-Smith","doi":"10.1145/800238.807160","DOIUrl":"https://doi.org/10.1145/800238.807160","url":null,"abstract":"In many situations the atoms in a list can require a considerable amount of storage space or can be difficult to evaluate. When handling algorithms which only refer to a few atoms of a list much time and space can be wasted if the whole list is stored. In this paper an attempt is made to store lists as procedures which are only evaluated if absolutely necessary. The difficulties which arise when programming such a list processor in Algol 68 are caused by inherent scoping problems. A solution is presented for linear lists together with an example based on the processing of an infinite list.","PeriodicalId":226613,"journal":{"name":"Strathclyde ALGOL 68 Conference","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1977-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128436119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Some questions of run-time storage management for ALGOL 68 are discussed. In the first section it is shown that in many cases copying of already existing values is not necessary, in spite of the fact that the Report prescribes this. The second section gives a new approach for finding the starting points for tracing the lists of values during garbage collection. In the third section we introduce a new area (in addition to the stack and the heap) for making the garbage collection process less expensive. The fourth section describes the general memory organization: stack, heap and bubble.
{"title":"Some remarks on new instances and garbage collection","authors":"Péter Szöke","doi":"10.1145/800238.807141","DOIUrl":"https://doi.org/10.1145/800238.807141","url":null,"abstract":"Some questions of run-time storage management for ALGOL 68 are discussed. In the first section it is shown that in many cases copying of already existing values is not necessary, in spite of the fact that the Report prescribes this. The second section gives a new approach for finding the starting points for tracing the lists of values during garbage collection. In the third section we introduce a new area (in addition to the stack and the heap) for making the garbage collection process less expensive. The fourth section describes the general memory organization: stack, heap and bubble.","PeriodicalId":226613,"journal":{"name":"Strathclyde ALGOL 68 Conference","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1977-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134300378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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