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Add Eclipse ATL language (https://eclipse.dev/atl/) #1024

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Dec 2, 2024
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Add Eclipse ATL language (https://eclipse.dev/atl/) #1024

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165 changes: 165 additions & 0 deletions lexers/embedded/atl.xml
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Original file line number Diff line number Diff line change
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<lexer>
<config>
<name>ATL</name>
<alias>atl</alias>
<filename>*.atl</filename>
<mime_type>text/x-atl</mime_type>
<dot_all>true</dot_all>
</config>
<rules>
<state name="root">
<rule pattern="(--.*?)(\n)">
<bygroups>
<token type="CommentSingle" />
<token type="TextWhitespace" />
</bygroups>
</rule>
<rule pattern="(and|distinct|endif|else|for|foreach|if|implies|in|let|not|or|self|super|then|thisModule|xor)\b">
<token type="Keyword" />
</rule>
<rule pattern="(OclUndefined|true|false|#\w+)\b">
<token type="KeywordConstant" />
</rule>
<rule pattern="(module|query|library|create|from|to|uses)\b">
<token type="KeywordNamespace" />
</rule>
<rule pattern="(do)(\s*)({)">
<bygroups>
<token type="KeywordNamespace" />
<token type="TextWhitespace" />
<token type="Punctuation" />
</bygroups>
</rule>
<rule pattern="(abstract|endpoint|entrypoint|lazy|unique)(\s+)">
<bygroups>
<token type="KeywordDeclaration" />
<token type="TextWhitespace" />
</bygroups>
</rule>
<rule pattern="(rule)(\s+)">
<bygroups>
<token type="KeywordNamespace" />
<token type="TextWhitespace" />
</bygroups>
</rule>
<rule pattern="(helper)(\s+)">
<bygroups>
<token type="KeywordNamespace" />
<token type="TextWhitespace" />
</bygroups>
</rule>
<rule pattern="(context)(\s+)">
<bygroups>
<token type="KeywordNamespace" />
<token type="TextWhitespace" />
</bygroups>
</rule>
<rule pattern="(def)(\s*)(:)(\s*)">
<bygroups>
<token type="KeywordNamespace" />
<token type="TextWhitespace" />
<token type="Punctuation" />
<token type="TextWhitespace" />
</bygroups>
</rule>
<rule pattern="(Bag|Boolean|Integer|OrderedSet|Real|Sequence|Set|String|Tuple)">
<token type="KeywordType" />
</rule>
<rule pattern="(\w+)(\s*)(&lt;-|&lt;:=)">
<bygroups>
<token type="NameNamespace" />
<token type="TextWhitespace" />
<token type="Punctuation" />
</bygroups>
</rule>
<rule pattern="#&quot;">
<token type="KeywordConstant" />
<push state="quotedenumliteral" />
</rule>
<rule pattern="&quot;">
<token type="NameNamespace" />
<push state="quotedname" />
</rule>
<rule pattern="[^\S\n]+">
<token type="TextWhitespace" />
</rule>
<rule pattern="&#x27;">
<token type="LiteralString" />
<push state="string" />
</rule>
<rule
pattern="[0-9]*\.[0-9]+">
<token type="LiteralNumberFloat" />
</rule>
<rule pattern="0|[1-9][0-9]*">
<token type="LiteralNumberInteger" />
</rule>
<rule pattern="[*&lt;&gt;+=/-]">
<token type="Operator" />
</rule>
<rule pattern="([{}();:.,!|]|-&gt;)">
<token type="Punctuation" />
</rule>
<rule pattern="\n">
<token type="TextWhitespace" />
</rule>
<rule pattern="\w+">
<token type="NameNamespace" />
</rule>
</state>
<state name="string">
<rule pattern="[^\\&#x27;]+">
<token type="LiteralString" />
</rule>
<rule pattern="\\\\">
<token type="LiteralString" />
</rule>
<rule pattern="\\&#x27;">
<token type="LiteralString" />
</rule>
<rule pattern="\\">
<token type="LiteralString" />
</rule>
<rule pattern="&#x27;">
<token type="LiteralString" />
<pop depth="1" />
</rule>
</state>
<state name="quotedname">
<rule pattern="[^\\&quot;]+">
<token type="NameNamespace" />
</rule>
<rule pattern="\\\\">
<token type="NameNamespace" />
</rule>
<rule pattern="\\&quot;">
<token type="NameNamespace" />
</rule>
<rule pattern="\\">
<token type="NameNamespace" />
</rule>
<rule pattern="&quot;">
<token type="NameNamespace" />
<pop depth="1" />
</rule>
</state>
<state name="quotedenumliteral">
<rule pattern="[^\\&quot;]+">
<token type="KeywordConstant" />
</rule>
<rule pattern="\\\\">
<token type="KeywordConstant" />
</rule>
<rule pattern="\\&quot;">
<token type="KeywordConstant" />
</rule>
<rule pattern="\\">
<token type="KeywordConstant" />
</rule>
<rule pattern="&quot;">
<token type="KeywordConstant" />
<pop depth="1" />
</rule>
</state>
</rules>
</lexer>
61 changes: 61 additions & 0 deletions lexers/testdata/atl.actual
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module TypeA2TypeB;
create b : TypeB from a : TypeA;

rule RootA2RootB {
from
rtA : TypeA!RootA
to
rtB : TypeB!RootB (
defs <- rtA.elms->iterate(e; res : Set(TypeA!ElementA) = Set {} |
if (res->collect(f | f.name)->includes(e.name)) then
res
else
res->including(e)
endif
)-- here we keep only one element of each name value
->collect(e | thisModule.Definition(e)),
-- then we create a DefinitionB from each selected element
elms <- rtA.elms
)
}

lazy rule Definition {
from
s : TypeA!ElementA
to
t : TypeB!DefinitionB(
name <- s.name
)
}

helper def: nameToAssignHistory : Sequence(TupleType(e : TypeB!ElementB, s : String)) =
Sequence {};

rule NameToAssign (e : TypeB!ElementB, s : String) {
do {
thisModule.nameToAssignHistory <- thisModule.nameToAssignHistory->append(Tuple {e = e, s = s});
}
}

rule Element {
from
s : TypeA!ElementA
to
t : TypeB!ElementB(
)
do {
-- The corresponding name for the current ElementB is added in the map.
-- This map will be used at the end of the transformation to create a link between ElementB and DefinitionB
thisModule.NameToAssign(t, s.name);
}
}

-- execute delayed actions
endpoint rule EndRule() {
do {
for(dta in thisModule.nameToAssignHistory) {
-- We create a link between an ElementB and the corresponding DefinitionB
dta.e.definition <- TypeB!DefinitionB.allInstancesFrom('b')->any(e | e.name = dta.s);
}
}
}
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