Add spelling suggestions for four cases:

1. For targets, when invoking ninja to build a target.
2. For targets, when doing a "query" command.
3. For command names.
4. For the subcommands of the "targets" command.

Also change CmdTargets() to call LookupNode() instead of GetNode() --
since the result was checked for NULL, that's probably what was intended
here originally.

1 files changed, 18 insertions, 0 deletions

diff --git a/src/stat_cache.cc b/src/stat_cache.cc
index 3309837..368f545 100644
--- a/src/stat_cache.cc
+++ b/src/stat_cache.cc
@@ -16,6 +16,7 @@
 
 #include <stdio.h>
 
+#include "edit_distance.h"
 #include "graph.h"
 
 FileStat* StatCache::GetFile(const std::string& path) {
@@ -27,6 +28,23 @@ FileStat* StatCache::GetFile(const std::string& path) {
   return file;
 }
 
+FileStat* StatCache::SpellcheckFile(const std::string& path) {
+  const bool kAllowReplacements = true;
+  const int kMaxValidEditDistance = 3;
+
+  int min_distance = kMaxValidEditDistance + 1;
+  FileStat* result = NULL;
+  for (Paths::iterator i = paths_.begin(); i != paths_.end(); ++i) {
+    int distance = EditDistance(
+        i->first, path, kAllowReplacements, kMaxValidEditDistance);
+    if (distance < min_distance && i->second->node_) {
+      min_distance = distance;
+      result = i->second;
+    }
+  }
+  return result;
+}
+
 void StatCache::Dump() {
   for (Paths::iterator i = paths_.begin(); i != paths_.end(); ++i) {
     FileStat* file = i->second;