Add $process.run() and $process.run_regex() functions

$process.run(<prog>[ <args>...])

Return trimmed stdout.

$process.run_regex(<prog>[ <args>...], <pat> [, <fmt>])

Return stdout lines matched and optionally processed with regex.

Each line of stdout (including the customary trailing blank) is matched (as a
whole) against <pat> and, if successful, returned, optionally processed with
<fmt>, as an element of a list.

1 files changed, 6 insertions, 0 deletions

diff --git a/build2/function.hxx b/build2/function.hxx
index c2686f2..62666cc 100644
--- a/build2/function.hxx
+++ b/build2/function.hxx
@@ -45,10 +45,16 @@ namespace build2
   // expected to issue diagnostics and throw failed. Note that the arguments
   // are conceptually "moved" and can be reused by the implementation.
   //
+  // @@ Maybe it makes sense to implicitly convert types like string to names
+  //    -- providing all the overload combinations really gets tedious.
+  //
   // A function can also optionally receive the current scope by having the
   // first argument of the const scope* type. It may be NULL is the function
   // is called out of any scope (e.g., command line).
   //
+  // Note also that we don't pass the location to the function instead
+  // printing the info message pointing to the call site.
+  //
   // Normally functions come in families that share a common qualification
   // (e.g., string. or path.). The function_family class is a "registrar"
   // that simplifies handling of function families. For example: