From 9c8844e80d493eceaa706c1e4cdf983f7e32c59d Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Sat, 28 Apr 2018 16:34:18 +0200
Subject: Move trim(), next_word() to libbutl

---
 build2/utility.cxx | 37 -------------------------------------
 build2/utility.hxx | 37 +++----------------------------------
 build2/utility.ixx | 29 -----------------------------
 3 files changed, 3 insertions(+), 100 deletions(-)

diff --git a/build2/utility.cxx b/build2/utility.cxx
index f1def09..2f46124 100644
--- a/build2/utility.cxx
+++ b/build2/utility.cxx
@@ -71,43 +71,6 @@ namespace build2
   // <build2/utility.hxx>
   //
 
-  string&
-  trim (string& l)
-  {
-    /*
-    assert (trim (r = "") == "");
-    assert (trim (r = " ") == "");
-    assert (trim (r = " \t\r") == "");
-    assert (trim (r = "a") == "a");
-    assert (trim (r = " a") == "a");
-    assert (trim (r = "a ") == "a");
-    assert (trim (r = " \ta") == "a");
-    assert (trim (r = "a \r") == "a");
-    assert (trim (r = " a ") == "a");
-    assert (trim (r = " \ta \r") == "a");
-    */
-
-    size_t i (0), n (l.size ());
-
-    for (char c;
-         i != n && ((c = l[i]) == ' ' || c == '\t' || c == '\r');
-         ++i) ;
-
-    for (char c;
-         n != i && ((c = l[n - 1]) == ' ' || c == '\t' || c == '\r');
-         --n) ;
-
-    if (i != 0)
-    {
-      string s (l, i, n - i);
-      l.swap (s);
-    }
-    else if (n != l.size ())
-      l.resize (n);
-
-    return l;
-  }
-
   options ops;
   process_path argv0;
   bool stderr_term;
diff --git a/build2/utility.hxx b/build2/utility.hxx
index d5809bc..bae2eb8 100644
--- a/build2/utility.hxx
+++ b/build2/utility.hxx
@@ -68,6 +68,9 @@ namespace build2
   using butl::alnum;
   using butl::digit;
 
+  using butl::trim;
+  using butl::next_word;
+
   using butl::exception_guard;
   using butl::make_exception_guard;
 
@@ -76,40 +79,6 @@ namespace build2
 
   using butl::eof;
 
-  // Basic string utilities.
-  //
-
-  // Trim leading/trailing whitespacec, including '\r'.
-  //
-  string&
-  trim (string&);
-
-  // Find the beginning and end poistions of the next word. Return the size
-  // of the word or 0 and set b = e = n if there are no more words. For
-  // example:
-  //
-  // for (size_t b (0), e (0); next_word (s, b, e); )
-  // {
-  //   string w (s, b, e - b);
-  // }
-  //
-  // Or:
-  //
-  // for (size_t b (0), e (0), n; n = next_word (s, b, e, ' ', ','); )
-  // {
-  //   string w (s, b, n);
-  // }
-  //
-  // The second version examines up to the n'th character in the string.
-  //
-  size_t
-  next_word (const string&, size_t& b, size_t& e,
-             char d1 = ' ', char d2 = '\0');
-
-  size_t
-  next_word (const string&, size_t n, size_t& b, size_t& e,
-             char d1 = ' ', char d2 = '\0');
-
   extern bool stderr_term; // True if stderr is a terminal.
 
   // Command line options.
diff --git a/build2/utility.ixx b/build2/utility.ixx
index d0fe80c..3595ce4 100644
--- a/build2/utility.ixx
+++ b/build2/utility.ixx
@@ -4,35 +4,6 @@
 
 namespace build2
 {
-  inline size_t
-  next_word (const string& s, size_t& b, size_t& e, char d1, char d2)
-  {
-    return next_word (s, s.size (), b, e, d1, d2);
-  }
-
-  inline size_t
-  next_word (const string& s, size_t n, size_t& b, size_t& e, char d1, char d2)
-  {
-    if (b != e)
-      b = e;
-
-    // Skip leading delimiters.
-    //
-    for (; b != n && (s[b] == d1 || s[b] == d2); ++b) ;
-
-    if (b == n)
-    {
-      e = n;
-      return 0;
-    }
-
-    // Find first trailing delimiter.
-    //
-    for (e = b + 1; e != n && s[e] != d1 && s[e] != d2; ++e) ;
-
-    return e - b;
-  }
-
   inline void
   hash_path (sha256& cs, const path& p, const dir_path& prefix)
   {
-- 
cgit v1.1