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* New primop `readFile' to get the contents of a file as a string.

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This commit is contained in:
Eelco Dolstra 2007-11-21 13:49:59 +00:00
parent c370755583
commit 06f95dd07c
4 changed files with 23 additions and 0 deletions
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12
src/libexpr/primops.cc
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@ -622,6 +622,17 @@ static Expr prim_dirOf(EvalState & state, const ATermVector & args)
}
/* Return the contents of a file as a string. */
static Expr prim_readFile(EvalState & state, const ATermVector & args)
{
PathSet context;
Path path = coerceToPath(state, args[0], context);
if (!context.empty())
throw EvalError(format("string `%1%' cannot refer to other paths") % path);
return makeStr(readFile(path));
}
/*************************************************************
* Creating files
*************************************************************/
@ -968,6 +979,7 @@ void EvalState::addPrimOps()
addPrimOp("__pathExists", 1, prim_pathExists);
addPrimOp("baseNameOf", 1, prim_baseNameOf);
addPrimOp("dirOf", 1, prim_dirOf);
addPrimOp("__readFile", 1, prim_readFile);
// Creating files
addPrimOp("__toXML", 1, prim_toXML);