Editing OpenVMS (section)

====Development tools====

[[File:Vax-vms-grey-wall.jpg|thumb|The "Grey Wall" of VAX/VMS documentation, at [[Living Computers: Museum + Labs]]]]

DEC provided a collection of software development tools in a layered product named ''DECset'' (originally named ''VAXset'').<ref name="language-1985" /> This consisted of the following tools:<ref>{{cite web |title=DECset |url=https://vmssoftware.com/products/decset/ |access-date=January 2, 2021 |website=VSI}}</ref>

* [[Language-Sensitive Editor]] (LSE)
* ''Code Management System'' (CMS) a [[version control]] system
* ''Module Management System'' (MMS), a [[build automation|build tool]]
* the ''Source Code Analyzer (''SCA), a [[static analyzer]] 
* the ''Performance and Coverage Analyzer'' (''PCA''), a [[Profiling (computer programming)|profiler]]
* ''Digital Test Manager'' (DTM), as a test manager 
* In addition, a number of [[text editor]]s are included in the operating system, including [[EDT (Digital)|EDT]], [[EVE (text editor)|EVE]] and [[TECO (text editor)|TECO]].<ref>{{cite web|url=https://vmssoftware.com/docs/VSI_DCL_DICT_VOL_I.pdf|title=VSI OpenVMS DCL Dictionary: A–M|date=April 2020|access-date=January 2, 2021|publisher=VSI}}</ref>

The OpenVMS Debugger supports all DEC compilers and many third-party languages. It allows breakpoints, watchpoints and interactive runtime program debugging using either a [[command line interface|command line]] or [[graphical user interface]].<ref>{{cite web|url=https://vmssoftware.com/docs/VSI_DEBUGGER.pdf|title=VSI OpenVMS Debugger Manual|date=June 2020|access-date=May 4, 2021|publisher=VSI}}</ref> A pair of lower-level debuggers, named ''DELTA'' and ''XDELTA'', can be used to debug privileged code in additional to normal application code.<ref>{{cite web|url=https://vmssoftware.com/docs/VSI_DELTA_XDELTA.pdf|title=VSI OpenVMS Delta/XDelta Debugger Manual|date=August 2019|access-date=December 31, 2020|publisher=VSI}}</ref>

In 2019, VSI released an officially supported [[Integrated Development Environment]] for VMS based on [[Visual Studio Code]].<ref name="vms-roadmap-12-2019" /> This allows VMS applications to be developed and debugged remotely from a [[Microsoft Windows]], [[macOS]] or [[Linux]] workstation.<ref>{{cite web|url=https://marketplace.visualstudio.com/items?itemName=VMSSoftwareInc.vms-ide|title=VMS IDE|access-date=January 2, 2021|website=Visual Studio Marketplace}}</ref>