From e614308b846478e20d548c81bc66d54b35e3292c Mon Sep 17 00:00:00 2001
From: Tavian Barnes <tavianator@tavianator.com>
Date: Sun, 30 Aug 2015 18:00:04 -0400
Subject: Add support for -true and -false.

---
 bfs.c | 33 ++++++++++++++++++++++-----------
 1 file changed, 22 insertions(+), 11 deletions(-)

diff --git a/bfs.c b/bfs.c
index 09f4e89..d5d1dc2 100644
--- a/bfs.c
+++ b/bfs.c
@@ -174,18 +174,10 @@ static const char *skip_paths(parser_state *state) {
 }
 
 /**
- * Always true.
+ * -false test.
  */
-static bool eval_true(const char *fpath, const struct BFTW *ftwbuf, const cmdline *cl, const expression *expr, int *ret) {
-	return true;
-}
-
-/**
- * -print action.
- */
-static bool eval_print(const char *fpath, const struct BFTW *ftwbuf, const cmdline *cl, const expression *expr, int *ret) {
-	pretty_print(cl->colors, fpath, ftwbuf->statbuf);
-	return true;
+static bool eval_false(const char *fpath, const struct BFTW *ftwbuf, const cmdline *cl, const expression *expr, int *ret) {
+	return false;
 }
 
 /**
@@ -215,6 +207,21 @@ static bool eval_nohidden(const char *fpath, const struct BFTW *ftwbuf, const cm
 	}
 }
 
+/**
+ * -print action.
+ */
+static bool eval_print(const char *fpath, const struct BFTW *ftwbuf, const cmdline *cl, const expression *expr, int *ret) {
+	pretty_print(cl->colors, fpath, ftwbuf->statbuf);
+	return true;
+}
+
+/**
+ * -true test.
+ */
+static bool eval_true(const char *fpath, const struct BFTW *ftwbuf, const cmdline *cl, const expression *expr, int *ret) {
+	return true;
+}
+
 /**
  * -type test.
  */
@@ -283,6 +290,8 @@ static expression *parse_literal(parser_state *state) {
 	} else if (strcmp(arg, "-nocolor") == 0) {
 		state->cl->color = false;
 		return new_expression(NULL, NULL, eval_true, 0);
+	} else if (strcmp(arg, "-false") == 0) {
+		return new_expression(NULL, NULL, eval_false, 0);
 	} else if (strcmp(arg, "-hidden") == 0) {
 		return new_expression(NULL, NULL, eval_hidden, 0);
 	} else if (strcmp(arg, "-nohidden") == 0) {
@@ -292,6 +301,8 @@ static expression *parse_literal(parser_state *state) {
 		return new_expression(NULL, NULL, eval_print, 0);
 	} else if (strcmp(arg, "-prune") == 0) {
 		return new_expression(NULL, NULL, eval_prune, 0);
+	} else if (strcmp(arg, "-true") == 0) {
+		return new_expression(NULL, NULL, eval_true, 0);
 	} else if (strcmp(arg, "-type") == 0) {
 		return parse_type(state);
 	} else {
-- 
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