feat(devin-lang): add support for variables and commands #101

The DevInLexer and DevInParser have been updated to support variables, agent usage, and commands in DevInLang. This change introduces a more flexible grammar that recognizes strings and variables, allowing for more complex and expressive scripting within the language.
unit-mesh · Mar 11, 2024 · e36d6f4 · e36d6f4
1 parent 3a35ac6
commit e36d6f4
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Showing 2 changed files with 14 additions and 6 deletions.
diff --git a/exts/devin-lang/src/grammar/DevInLexer.flex b/exts/devin-lang/src/grammar/DevInLexer.flex
@@ -18,15 +18,17 @@ import com.intellij.psi.TokenType;
 
 CRLF=\R
 WHITE_SPACE=[\ \n\t\f]
-FIRST_VALUE_CHARACTER=[^ \n\f\\] | "\\"{CRLF} | "\\".
-VALUE_CHARACTER=[^\n\f\\] | "\\"{CRLF} | "\\".
-END_OF_LINE_COMMENT=("#"|"!")[^\r\n]*
-SEPARATOR=[:=]
-KEY_CHARACTER=[^:=\ \n\t\f\\] | "\\ "
+// $ variable
+STRING=\"([^\\\"\r\n]|\\[^\r\n])*\"?
+VARIABLE="$" {STRING}
 
 %state WAITING_VALUE
 
 %%
+<YYINITIAL> {
+    {STRING}           { return DevInTypes.STRING; }
+    {VARIABLE}         { return DevInTypes.VARIABLE; }
+}
 
 ({CRLF}|{WHITE_SPACE})+                                     { yybegin(YYINITIAL); return TokenType.WHITE_SPACE; }
 

diff --git a/exts/devin-lang/src/grammar/DevInParser.bnf b/exts/devin-lang/src/grammar/DevInParser.bnf
@@ -17,4 +17,10 @@
 
 DevInFile ::= item_*
 
-private item_ ::= (CRLF)
+private item_ ::= (VARIABLE|CRLF|STRING)
+
+// $use-variable
+
+// @use-agent
+
+// /use-command