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, 4 insertions, 0 deletions

diff --git a/src/util.h b/src/util.h
index d66bd84..40b519e 100644
--- a/src/util.h
+++ b/src/util.h
@@ -49,6 +49,10 @@ void SetCloseOnExec(int fd);
 /// time.
 int64_t GetTimeMillis();
 
+/// Given a misspelled string and a NULL-terminatd list of correct spellings,
+/// returns the closest match or NULL if there is no close enough match.
+const char* SpellcheckString(const string& text, ...);
+
 #ifdef _WIN32
 #define snprintf _snprintf
 #endif