External Parsers Latest Topics

End of the availability of standalone Semantic Merge

Tue, 05 Apr 2022 13:01:03 +0000

Dear Semantic Merge users,

Thank you for your support of Semantic Merge.By now you have all been notified by email but we wanted to share this in the forums also.

As of 5 April 2022, we have ended the availability of standalone Semantic Merge product.

You will be able to continue to use your current license through the end of the license term.
Semantic Merge technology continues under active development as a part of Unity Plastic SCM.

Best regards,

Carlos.

VS Code as External 2 Way Merge Tool

Thu, 11 Jul 2019 09:55:51 +0000

I'm trying to confirm that the following is the correct config for utilizing VS Code as the external 2 way merge tool

[mergetool "semanticmerge"]
cmd = \"C:\\Users\\KyleZeronik\\AppData\\Local\\semanticmerge\\semanticmergetool.exe\" -s \"$REMOTE\" -d \"$LOCAL\" -b \"$BASE\" -r \"$MERGED\" -a --nolangwarn -e2mt = \"code '"#"sourcefile' '"#"destinationfile' --L1 "#"sourcesymbolic --L2 "#"destinationsymbolic -o '"#"output' \"
trustExitCode = true

also I have working both "semanticmerge" and "vscode" as difftool(s) (I switch between the 2)

[difftool]
   prompt = false
[difftool "semanticmerge"]
   cmd = \"C:\\Users\\KyleZeronik\\AppData\\Local\\semanticmerge\\semanticmergetool.exe\" -s \"$LOCAL\" -d \"$REMOTE\" --nolangwarn
[difftool "vscode"]
   cmd = code --wait --diff $LOCAL $REMOTE

Odd calls of external Pas2Yaml parser

Wed, 02 Jan 2019 15:27:43 +0000

I have got an odd issue with the the Pas2Yaml parser (modified to accept the additional encoding line):

It seems never to get the 'end' line:

This is the debug output:

READY
Received line: PathToTemp\u_RRMTP1b.pas-revBASE.svn00d.tmp.pas
Received encoding: Windows-1252
Received outputfile: PathToTemp\c525fb84-6c8e-4ec9-8e5f-98c290e1e165.tree
Parsed and writing to outputfile: PathToTemp\c525fb84-6c8e-4ec9-8e5f-98c290e1e165.tree
wrote OK
Received line: PathTo\src\u_RRMTP1b.pas
Received encoding: Windows-1252
Received outputfile: PathToTemp\b662819d-08d3-4be6-a680-db2067828443.tree
Parsed and writing to outputfile: PathToTemp\b662819d-08d3-4be6-a680-db2067828443.tree
wrote OK
Received line:
Received line:
Received line:

[and lots of more empty lines]

And that's it. After these lines it only gets empty lines and never gets the 'end' line.

I configured SemanticMerge for use as an external diff viewer in Tortoise svn like this:

PathTo\semanticmergetool.exe -s=%base -d=%mine -ep=PathTo\pas2yaml.exe

Based on this I would expect exactly two file sets being passed to pas2yaml:

1. The base file + its encoding + output file for it:

PathToTemp\u_RRMTP1b.pas-revBASE.svn00b.tmp.pas

Windows-1252

PathToTemp\a0f73627-d2e0-4662-9653-aac4a138994a.tree

2. My modified file + its encoding + output file for it:

PathTo\src\u_RRMTP1b.pas
Windows-1252
PathToTemp\57f72391-a859-45d2-bb17-cace52d03314.tree

Followed by a line containing 'end'.

Instead of the 'end' line I get an empty line for each call to ReadLn.

My question is: Are we sure that SemanticMerge 2.0 calls external parsers the way it is documented?

It is possible, that the created yaml files are not valid, I haven't checked that. Maybe SemanticMerge does not send the 'end' line in that case?

Delphi parser development

Tue, 03 Sep 2013 12:40:17 +0000

Hi all,

Delphi support is the top 5 request in our User Voice: Delphi support in SemanticMerge. So we're eager to add Object Pascal to the list of supported languages.

In order to do so we’ve developed a way to plug-in external parsers, so if you can develop a Delphi language parser it will be very simple to get it invoked from Semantic.

If you’re interested on joining our “Delphi Parser” effort, please join this thread and we will send you the required tools.

Right now all what plugin a parser requires is:

* Create an standalone executable.

* Able to receive some data as arguments.

* And able to export the "tree" of the file in YAML format.

Of course you'll need all the details but this is just an intro of what it takes.

We've also developed tools to help testing the parsers, like a "directory parser" which will loop through a code tree parsing (invoking your parser) and then rebuilding the source file making sure the original and the regenerated ones match.

We're eager to get this started!

pablo

Java 8 support

Thu, 24 Dec 2015 04:11:55 +0000

Are there any plans on supporting Java 8?

We find that the parser chokes on simple closures.

Official docu to create external parsers

Wed, 14 Dec 2016 22:58:58 +0000

Hi,

We are happy to announce we just published the official docu explaining how to write external parsers for both SemanticMerge and Plastic SCM!

https://users.semanticmerge.com/documentation/external-parsers/external-parsers-guide.shtml

Hope it helps!

Groovy support

Thu, 24 Dec 2015 04:12:56 +0000

Are there any plans to support Groovy?

Where does it stand compared to the priorities of other languages?

Properties/INI files support

Thu, 24 Dec 2015 04:14:11 +0000

Are there any plans to support key/value configuration files.

For example Java Property format, or INI (with sections)?

Where does it stand compared to the priorities of other languages?

Scala support

Mon, 08 Jun 2015 06:32:01 +0000

Hi,

I'm finishing off an open source Scala plugin for Semantic Merge, I've attached some teaser screenshots with this post.

It already allows Semantic Merge do successfully diff and merge Scala source files; however I am currently working through replacing the TODOs with descriptions of the language constructs.

The code is over at GitHub:-

https://github.com/sageserpent-open/SemanticMergeScalaPlugin.git

I'll think of a nice way of distributing this plugin, currently you'll have to build it for yourselves, which isn't difficult, but we'd all like a more shrink-wrapped product.

Enjoy!

Gerard

Use of 'name' attribute in YAML container.

Thu, 17 Apr 2014 08:15:30 +0000

Hi,

I'm thinking about the feasibility of implementing an external parser for Semantic Merge for F# - this *might* handle code that defines anonymous functions.

Looking at the container definition in the description of the generated YAML file, is it absolutely necessary to populate the 'name' attribute - or can the core Semantic Merge engine work with anonymous containers?

My guess is that it can, because the names can change for a construct between files due to renaming, but I'd like to check first....

Regards,

Gerard

What's wrong with this YAML input?

Sun, 27 Jul 2014 19:53:35 +0000

Hi,

I'm feeding the following YAML files to Semantic Merge as output from the FSharp plugin:-

---

type : file

name : C:\Users\Gerard Murphy\AppData\Local\PlasticSCM4\semanticmerge\samples\Java\Socket\src.fs

locationSpan : {start: [3,4], end: [7,0]}

footerSpan : [0, -1]

parsingErrorsDetected : False

children :

- type : namespace

name : Foo

locationSpan : {start: [3,4], end: [7,0]}

headerSpan : [0, -1]

footerSpan : [0, -1]

---

type : file

name : C:\Users\Gerard Murphy\AppData\Local\PlasticSCM4\semanticmerge\samples\Java\Socket\dst.fs

locationSpan : {start: [3,4], end: [7,0]}

footerSpan : [0, -1]

parsingErrorsDetected : False

children :

- type : namespace

name : Boo

locationSpan : {start: [3,4], end: [7,0]}

headerSpan : [0, -1]

footerSpan : [0, -1]

(Don't worry about the 'Java' in the path - I just placed my F# files in the samples directory to re-use the sample scripts with minimal changes).

Semantic Merge shows an error dialog indicating what looks like a null reference exception, see attachment below.

The stack trace is also attached below.

Do you have any pointers as to what is going wrong? While the plugin is still at a very early stage, I'm keen to make sure I've got the YAML protocol part correct before going further.

Three things that spring to mind immediately to me are:-

1. Can the headers and footers be set to the default of [0, -1], or are they required?

2. My reading of the informal specification given the Delphi plugin developers implies that I don't need to populate any terminal nodes in the YAML - is this the case?

3. Did I get a flag wrong on the command line? I am using:-

set mergeOptions= -ep=""C:\PlasticSCMWorkspaces\SemanticMergeFSharpPlugin\FSharpPlugin\bin\Debug\FsharpPlugin.exe"" %contributorFiles%%resultFile%%difftool%%mergetool%

Regards,

Gerard