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Fix variable expansion

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huntedbytheirs
2026-07-28 16:38:09 -04:00
parent 2c9aea12c9
commit fb7fdf330f
1 changed files with 5 additions and 3 deletions
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source/antelope/evaluator/expansion.d
+5 -3
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@@ -224,11 +224,13 @@ private string resolveParenContent(string content, char closer, Environment* env
content[colonIdx + 1] != '=' && indexOf(content[colonIdx + 1 .. $], '=') >= 0) content[colonIdx + 1] != '=' && indexOf(content[colonIdx + 1 .. $], '=') >= 0)
{ {
// Syntax: VAR:old=new // Syntax: VAR:old=new
// Per GNU Make: $(var:a=b) ≡ $(patsubst %a,%b,$(var))
// The '%' is prepended so that patsubst matches at end-of-word.
string varName = content[0 .. colonIdx]; string varName = content[0 .. colonIdx];
auto eqIdx = indexOf(content[colonIdx + 1 .. $], '='); auto eqIdx = indexOf(content[colonIdx + 1 .. $], '=');
string oldPat = content[colonIdx + 1 .. colonIdx + 1 + eqIdx]; string oldPat = "%" ~ content[colonIdx + 1 .. colonIdx + 1 + eqIdx];
string newPat = content[colonIdx + 1 + eqIdx + 1 .. $]; string newPat = "%" ~ content[colonIdx + 1 + eqIdx + 1 .. $];
// Equivalent to $(patsubst oldPat,newPat,$(varName)) // Equivalent to $(patsubst %oldPat,%newPat,$(varName))
string varValue = env ? env.get(varName) : ""; string varValue = env ? env.get(varName) : "";
if (varValue.length > 0) if (varValue.length > 0)
{ {