From 0e0842330d1ef11f9ac6fa70d9f84bdb16084c45 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Fri, 18 Oct 2019 15:20:49 +0200
Subject: Add $quote() function for quoting values

This can be useful if we want to pass a value on the command line, for
example, in a testscript:

$* config.cxx=$quote($recall($cxx.path) $cxx.mode, true)
---
 libbuild2/name.hxx | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

(limited to 'libbuild2/name.hxx')

diff --git a/libbuild2/name.hxx b/libbuild2/name.hxx
index 1ce073a..738645d 100644
--- a/libbuild2/name.hxx
+++ b/libbuild2/name.hxx
@@ -129,11 +129,19 @@ namespace build2
   //
   // \$("
   //
+  // If escape is true, then escape (with a backslash) the quote characters
+  // being added (this is useful if the result will be re-parsed, for example
+  // as a Testscript command line).
+  //
   // Note that in the quoted mode empty unqualified name is printed as '',
   // not {}.
   //
   LIBBUILD2_SYMEXPORT ostream&
-  to_stream (ostream&, const name&, bool quote, char pair = '\0');
+  to_stream (ostream&,
+             const name&,
+             bool quote,
+             char pair = '\0',
+             bool escape = false);
 
   inline ostream&
   operator<< (ostream& os, const name& n) {return to_stream (os, n, false);}
@@ -153,7 +161,11 @@ namespace build2
   // The same semantics as to_stream(name).
   //
   LIBBUILD2_SYMEXPORT ostream&
-  to_stream (ostream&, const names_view&, bool quote, char pair = '\0');
+  to_stream (ostream&,
+             const names_view&,
+             bool quote,
+             char pair = '\0',
+             bool escape = false);
 
   inline ostream&
   operator<< (ostream& os, const names_view& ns) {
-- 
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