HELPLIB.HLB  —  DECset  Context File
  A context file contains statements which assign values to the
  various attributes comprising a context.  This file may also contain
  comment lines and blank lines.

  A statement is used in the context file to assign a value to a
  particular context attribute.  A hyphen may be used in the last
  character position of a line to continue a statement on the
  following line.

  Several of the statements that may appear in a context file are
  similar to DCL commands; however, the syntax of these statements is
  more restrictive than that of DCL.

  Note that a context file is automatically generated when you save a
  context via the Environment Manager's graphical user interface.

1  –  CMS_SET_LIBRARY 

  The CMS SET LIBRARY statement is used to specify the CMS library.

  Format:

       CMS SET LIBRARY directory[,...]

2  –  DTM_SET_LIBRARY 

  The DTM SET LIBRARY statement is used to specify the DTM library.

  Format:

       DTM SET LIBRARY directory

3  –  Comments 

  Comment lines must begin with an exclamation point.

  For example:

       ! This is a comment line.

4  –  DEASSIGN 

  The DEASSIGN statement is used to deassign a logical name.

  Format:

       DEASSIGN [qualifiers] logical-name

4.1  –  Qualifiers 

  The optional qualifiers for the DEASSIGN command are:

       /PROCESS
       /JOB
       /GROUP
       /SYSTEM
       /TABLE=name

  You should not combine any of /PROCESS, /JOB, /GROUP, /SYSTEM, and
  /TABLE.

5  –  DEFINE 

  The DEFINE statement is used to define a logical name.

  Format:

       DEFINE [qualifiers] logical-name equivalence-string[,...]

5.1  –  Qualifiers 

  The optional qualifiers for the DEFINE command are:

       /PROCESS
       /JOB
       /GROUP
       /SYSTEM
       /TABLE=name
       /TRANSLATION_ATTRIBUTES=CONCEALED

  You should not combine any of /PROCESS, /JOB, /GROUP, /SYSTEM, and
  /TABLE.

6  –  DELETE_SYMBOL 

  The DELETE/SYMBOL statement is used to delete a symbol.

  Format:

       DELETE/SYMBOL symbol-name

7  –  SCA_SET_LIBRARY 

  The SCA SET LIBRARY statement is used to specify the SCA library.

  Format:

       SCA SET LIBRARY directory[,...]

8  –  SET_DEFAULT 

  The SET DEFAULT statement is used to specify the default directory
  for the context.

  Format:

       SET DEFAULT directory

9  –  SET_DIRECTORY 

  The SET_DIRECTORY statement is used to specify a directory to be used
  for a particular purpose.

  Format:

       SET_DIRECTORY setting

  where setting can be one of the following:

       SOURCE directory[,...]
       EXECUTABLE directory
       LISTING directory
       OBJECT directory

10  –  SET_LINKER 

  The SET_LINKER statement is used to set the values of linker-specific
  attributes.

  Format:

       SET_LINKER setting

  where setting can be one of the following:

       OBJECT_LIBRARY filespec
       OPTIONS_FILE filespec

11  –  SET_MMS 

  The SET_MMS statement is used to set the values of MMS-specific
  attributes.

  Format:

       SET_MMS setting

11.1  –  Parameters 

  Most of the SET_MMS setting options have the same syntactic forms
  and semantics of corresponding MMS command qualifiers.

11.1.1  –  ACTION 

  This option has the same semantics as the MMS /ACTION qualifier.

  Format:

       SET_MMS [NO]ACTION

11.1.2  –  BUILTIN_RULES_APPLY 

  This option has the same semantics as the MMS /BUILTIN_RULES_APPLY qualifier.

  Format:

       SET_MMS [NO]BUILTIN_RULES_APPLY

11.1.3  –  CHANGED 

  This option has the same semantics as the MMS /CHANGED qualifier.

  Format:

       SET_MMS CHANGED=(source[,source...])

11.1.4  –  CHECK_STATUS 

  This option has the same semantics as the MMS /CHECK_STATUS qualifier.

  Format:

       SET_MMS [NO]CHECK_STATUS

11.1.5  –  CMS 

  This option has the same semantics as the MMS /CMS qualifier.

  Format:

       SET_MMS [NO]CMS

11.1.6  –  DESCRIPTION 

  This option has the same semantics as the MMS /DESCRIPTION
  qualifier.

  Format:

       SET_MMS DESCRIPTION[=filespec]
       SET_MMS NODESCRIPTION

11.1.7  –  ENABLE macro 

  This option enables the indicated MMS macro.

  Format:

       SET_MMS ENABLE_DEBUG (to enable the DEBUG macro)
       SET_MMS ENABLE_LIST (to enable the LIST macro)
       SET_MMS ENABLE_DIAG (to enable the DIAG macro)

11.1.8  –  FORCE 

  This option has the same semantics as the MMS /FORCE qualifier.

  Format:

       SET_MMS [NO]FORCE

11.1.9  –  FROM_SOURCES 

  This option has the same semantics as the MMS /FROM_SOURCES
  qualifier.

  Format:

       SET_MMS FROM_SOURCES

11.1.10  –  IGNORE 

  This option has the same semantics as the MMS /IGNORE qualifier.

  Format:

       SET_MMS IGNORE[={WARNING|ERROR|FATAL}]
       SET_MMS NOIGNORE

11.1.11  –  LIST 

  This option has the same semantics as the MMS /LIST qualifier.

  Format:

       SET_MMS LIST[=filespec]
       SET_MMS NOLIST

11.1.12  –  LOG 

  This option has the same semantics as the MMS /LOG qualifier.

  Format:

       SET_MMS [NO]LOG

11.1.13  –  MACRO 

  This option has the same semantics as the MMS /MACRO qualifier.

  Format:

       SET_MMS MACRO=(macro[,...])
       SET_MMS MACRO="macroname=expansion"

  The macro argument in the MACRO=(macro[,...]) form can be in
  either of the following forms:

       "macroname=expansion"
       macro-filespec

11.1.14  –  OBJECT_LIBRARY 

  This option allows you to specify the object library to be used by
  the MMS description file generator.

  Format:

       SET_MMS OBJECT_LIBRARY filespec

11.1.15  –  OUTPUT 

  This option has the same semantics as the MMS /OUTPUT qualifier.

  Format:

       SET_MMS OUTPUT[=filespec]

11.1.16  –  OVERRIDE 

  This option has the same semantics as the MMS /OVERRIDE qualifier.

  Format:

       SET_MMS [NO]OVERRIDE

11.1.17  –  REVISE_DATE 

  This option has the same semantics as the MMS /REVISE_DATE
  qualifier.

  Format:

       SET_MMS [NO]REVISE_DATE

11.1.18  –  RULES 

  This option has the same semantics as the MMS /RULES qualifier.

  Format:

       SET_MMS RULES[=filespec]
       SET_MMS NORULES

11.1.19  –  SCA_LIBRARY 

  This option has the same semantics as the MMS /SCA_LIBRARY
  qualifier.

  Format:

       SET_MMS SCA_LIBRARY[=directory]
       SET_MMS NOSCA_LIBRARY

11.1.20  –  SCAN_INCLUDE 

  This option has the same semantics as the MMS /SCAN_INCLUDE
  qualifier.

  Format:

       SET_MMS [NO]SCAN_INCLUDE

11.1.21  –  SKIP_INTERMEDIATE 

  This option has the same semantics as the MMS /SKIP_INTERMEDIATE
  qualifier.

  Format:

       SET_MMS [NO]SKIP_INTERMEDIATE

11.1.22  –  SWITCHES 

  This option has the same semantics as the MMS /SWITCHES
  qualifier.

  Format:

       SET_MMS SWITCHES

11.1.23  –  VERIFY 

  This option has the same semantics as the MMS /VERIFY qualifier.

  Format:

       SET_MMS [NO]VERIFY

12  –  Symbol Assignment 

  A symbol assignment takes the following form:

       symbol == expression
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