commit 8a96358d16ab0c435820d07472e301e9d3b2c03a
author Shinichiro Hamaji <shinichiro.hamaji@gmail.com> Thu Jun 18 07:05:58 2015 +0900
committer Shinichiro Hamaji <shinichiro.hamaji@gmail.com> Thu Jun 18 11:25:45 2015 +0900
tree 12c6e6216bfed55a545ef8d2d9c6f46f5eec64a3
parent 5d694f0d17ac2016415bb7adbd589ca4a989a98b

[C++] Implement abspath

func.cc

diff --git a/func.cc b/func.cc
index 3dbd970..af6c81a 100644
--- a/func.cc
+++ b/func.cc
@@ -294,12 +294,27 @@
   }
 }
 
-void RealpathFunc(const vector<Value*>&, Evaluator*, string*) {
-  printf("TODO(realpath)");
+void RealpathFunc(const vector<Value*>& args, Evaluator* ev, string* s) {
+  shared_ptr<string> text = args[0]->Eval(ev);
+  WordWriter ww(s);
+  for (StringPiece tok : WordScanner(*text)) {
+    char orig = tok[tok.size()];
+    const_cast<char*>(tok.data())[tok.size()] = '\0';
+    char buf[PATH_MAX];
+    if (realpath(tok.data(), buf))
+      *s += buf;
+    const_cast<char*>(tok.data())[tok.size()] = orig;
+  }
 }
 
-void AbspathFunc(const vector<Value*>&, Evaluator*, string*) {
-  printf("TODO(abspath)");
+void AbspathFunc(const vector<Value*>& args, Evaluator* ev, string* s) {
+  shared_ptr<string> text = args[0]->Eval(ev);
+  WordWriter ww(s);
+  string buf;
+  for (StringPiece tok : WordScanner(*text)) {
+    AbsPath(tok, &buf);
+    ww.Write(buf);
+  }
 }
 
 void IfFunc(const vector<Value*>&, Evaluator*, string*) {