1 files changed, 68 insertions, 77 deletions

diff --git a/third_party/nix/src/libexpr/names.cc b/third_party/nix/src/libexpr/names.cc
index 382088c788..c3dd2a9bd1 100644
--- a/third_party/nix/src/libexpr/names.cc
+++ b/third_party/nix/src/libexpr/names.cc
@@ -1,107 +1,98 @@
 #include "names.hh"
 #include "util.hh"
 
-
 namespace nix {
 
-
-DrvName::DrvName()
-{
-    name = "";
-}
-
+DrvName::DrvName() { name = ""; }
 
 /* Parse a derivation name.  The `name' part of a derivation name is
    everything up to but not including the first dash *not* followed by
    a letter.  The `version' part is the rest (excluding the separating
    dash).  E.g., `apache-httpd-2.0.48' is parsed to (`apache-httpd',
    '2.0.48'). */
-DrvName::DrvName(const string & s) : hits(0)
-{
-    name = fullName = s;
-    for (unsigned int i = 0; i < s.size(); ++i) {
-        /* !!! isalpha/isdigit are affected by the locale. */
-        if (s[i] == '-' && i + 1 < s.size() && !isalpha(s[i + 1])) {
-            name = string(s, 0, i);
-            version = string(s, i + 1);
-            break;
-        }
+DrvName::DrvName(const string& s) : hits(0) {
+  name = fullName = s;
+  for (unsigned int i = 0; i < s.size(); ++i) {
+    /* !!! isalpha/isdigit are affected by the locale. */
+    if (s[i] == '-' && i + 1 < s.size() && !isalpha(s[i + 1])) {
+      name = string(s, 0, i);
+      version = string(s, i + 1);
+      break;
     }
+  }
 }
 
-
-bool DrvName::matches(DrvName & n)
-{
-    if (name != "*") {
-        if (!regex) regex = std::unique_ptr<std::regex>(new std::regex(name, std::regex::extended));
-        if (!std::regex_match(n.name, *regex)) return false;
-    }
-    if (version != "" && version != n.version) return false;
-    return true;
+bool DrvName::matches(DrvName& n) {
+  if (name != "*") {
+    if (!regex)
+      regex = std::unique_ptr<std::regex>(
+          new std::regex(name, std::regex::extended));
+    if (!std::regex_match(n.name, *regex)) return false;
+  }
+  if (version != "" && version != n.version) return false;
+  return true;
 }
 
+string nextComponent(string::const_iterator& p,
+                     const string::const_iterator end) {
+  /* Skip any dots and dashes (component separators). */
+  while (p != end && (*p == '.' || *p == '-')) ++p;
 
-string nextComponent(string::const_iterator & p,
-    const string::const_iterator end)
-{
-    /* Skip any dots and dashes (component separators). */
-    while (p != end && (*p == '.' || *p == '-')) ++p;
+  if (p == end) return "";
 
-    if (p == end) return "";
+  /* If the first character is a digit, consume the longest sequence
+     of digits.  Otherwise, consume the longest sequence of
+     non-digit, non-separator characters. */
+  string s;
+  if (isdigit(*p))
+    while (p != end && isdigit(*p)) s += *p++;
+  else
+    while (p != end && (!isdigit(*p) && *p != '.' && *p != '-')) s += *p++;
 
-    /* If the first character is a digit, consume the longest sequence
-       of digits.  Otherwise, consume the longest sequence of
-       non-digit, non-separator characters. */
-    string s;
-    if (isdigit(*p))
-        while (p != end && isdigit(*p)) s += *p++;
-    else
-        while (p != end && (!isdigit(*p) && *p != '.' && *p != '-'))
-            s += *p++;
-
-    return s;
+  return s;
 }
 
+static bool componentsLT(const string& c1, const string& c2) {
+  int n1, n2;
+  bool c1Num = string2Int(c1, n1), c2Num = string2Int(c2, n2);
 
-static bool componentsLT(const string & c1, const string & c2)
-{
-    int n1, n2;
-    bool c1Num = string2Int(c1, n1), c2Num = string2Int(c2, n2);
-
-    if (c1Num && c2Num) return n1 < n2;
-    else if (c1 == "" && c2Num) return true;
-    else if (c1 == "pre" && c2 != "pre") return true;
-    else if (c2 == "pre") return false;
-    /* Assume that `2.3a' < `2.3.1'. */
-    else if (c2Num) return true;
-    else if (c1Num) return false;
-    else return c1 < c2;
+  if (c1Num && c2Num)
+    return n1 < n2;
+  else if (c1 == "" && c2Num)
+    return true;
+  else if (c1 == "pre" && c2 != "pre")
+    return true;
+  else if (c2 == "pre")
+    return false;
+  /* Assume that `2.3a' < `2.3.1'. */
+  else if (c2Num)
+    return true;
+  else if (c1Num)
+    return false;
+  else
+    return c1 < c2;
 }
 
+int compareVersions(const string& v1, const string& v2) {
+  string::const_iterator p1 = v1.begin();
+  string::const_iterator p2 = v2.begin();
 
-int compareVersions(const string & v1, const string & v2)
-{
-    string::const_iterator p1 = v1.begin();
-    string::const_iterator p2 = v2.begin();
-
-    while (p1 != v1.end() || p2 != v2.end()) {
-        string c1 = nextComponent(p1, v1.end());
-        string c2 = nextComponent(p2, v2.end());
-        if (componentsLT(c1, c2)) return -1;
-        else if (componentsLT(c2, c1)) return 1;
-    }
+  while (p1 != v1.end() || p2 != v2.end()) {
+    string c1 = nextComponent(p1, v1.end());
+    string c2 = nextComponent(p2, v2.end());
+    if (componentsLT(c1, c2))
+      return -1;
+    else if (componentsLT(c2, c1))
+      return 1;
+  }
 
-    return 0;
+  return 0;
 }
 
-
-DrvNames drvNamesFromArgs(const Strings & opArgs)
-{
-    DrvNames result;
-    for (auto & i : opArgs)
-        result.push_back(DrvName(i));
-    return result;
+DrvNames drvNamesFromArgs(const Strings& opArgs) {
+  DrvNames result;
+  for (auto& i : opArgs) result.push_back(DrvName(i));
+  return result;
 }
 
-
-}
+}  // namespace nix