LSE is a multilanguage, advanced text editor that is layered on the
VAX Text Processing Utility (VAXTPU). LSE works with VMS languages
and other VMS productivity tools to enhance program development.
LSE allows you to control your editing environment and use LSE's
knowledge of specific languages to develop programs quickly and
accurately.
LSE provides the following features:
o Error Correction and Review
This feature allows you to compile, review, and correct
compilation errors within a single editing session. LSE provides
an interface to the supported VMS language compilers so that you
can perform compilations without leaving LSE. The compilers
provide LSE with compilation diagnostics in a way that allows you
to review compilation errors in one editing window while
displaying the related source in another window.
o Language-Specific Templates
Templates permit fast and efficient source code entry. LSE
accesses a collection of formatted language constructs, called
templates, that provide keywords, punctuation, and placeholders,
for each supported VMS language.
LSE allows you to modify existing templates or define your own
language or text templates.
o Integrated Programming Environment
LSE is integrated into the OpenVMS development environment. It
is invoked using the DIGITAL Command Language (DCL). LSE works
with supported OpenVMS languages, the Source Code Analyzer (SCA),
the Code Management System (CMS), the Debugger, and the
Performance and Coverage Analyzer (PCA) to provide a highly
interactive environment. This environment enables you to create
and edit code, to view multiple source modules, to compile
programs, and to review and correct compile-time errors in one
editing session.
LSE can be invoked directly from the debugger to correct source
code problems found during debugging sessions. In addition, LSE
can be invoked from the Performance and Coverage Analyzer to
correct performance problems found during analyzing sessions.
o Online HELP Facility
LSE provides online HELP for information on unfamiliar language
constructs and routines. HELP is also provided for all of LSE's
commands and key definitions.
o Source Code Analysis
LSE's integration with SCA allows you to search for specific
information contained in your source files.
SCA is a source code cross-reference and static analysis tool
that helps programmers familiarize themselves with complex
systems. SCA accesses source information generated by supported
VMS language compilers. Thus, SCA allows you to move through
this information and gain access to related source files as
necessary. You can find out how a program symbol was declared,
where a particular routine is called, or what module needs to be
recompiled.
o Source Code Management
An interface with CMS simplifies the functions of program
development.
All CMS commands can be issued within LSE. LSE can be directed
to fetch files directly from a CMS library when you issue
standard LSE file manipulation commands. In addition, LSE has
commands RESERVE, REPLACE and UNRESERVE which perform the
corresponding CMS operation on LSE buffers.
o Program Design
The /DESIGN qualifier allows the compiler to process an input
file as a detailed design. Used with LSE and SCA, this new
capability provides an integrated software development
environment that includes the low-level design phase of the
software development life cycle.
During the design phase, any supported VAX language can be your
Program Design Language (PDL). In the VMS environment, you
create detailed designs as follows:
- Using a supported VAX language
- Embedding design information in comments
- Writing algorithms with pseudocode and regular placeholders
With LSE, you can use pseudocode placeholders to express design
information. Supported VAX languages use the special brackets «
and » to delimit pseudocode placeholders. You can express other
design information in tagged header comments. In addition, you
can convert pseudocode placeholders into comments and store the
design information in SCA libraries.
With SCA, you can perform cross-referencing and static analysis
on the design information. In addition, SCA provides a report
tool that allows you to process and analyze designs to produce a
variety of design reports. Design reports can show the current
state of design work and help you understand existing code. You
can generate help libraries and routine templates from these
design reports.
o LSE Customization
LSE allows you to extend your editing environment to handle
highly specialized editing needs. LSE provides an interface to
VAXTPU. VAXTPU is part of the VMS operating system. VAXTPU
features include a compiler and an interpreter, and procedures
for screen management and text manipulation. The VAXTPU language
is block-structured and provides looping, conditional, case, and
assignment statements, and many built-in procedures to allow you
to perform more powerful editing tasks.
o EVE/EDT Keypads
LSE provides a SET MODE KEYPAD command that sets the key
definitions to be similiar to EVE or EDT.
o System Services and Run-Time Library Templates
LSE provides packages for VMS Systems Services and for the LIB$,
SMG$, and STR$ Run-Time Library routines. In addition, LSE
allows you to define templates for packages of subroutine
libraries.