commit - 62ab48ecd9c2696e7929e41bc2a683facffdcfcb
commit + 00d5652be692793aa7c9285b490702d05a7ab8df
blob - ced7b7cda23b7557d6c4109730b7e7a41b0db237
blob + f562ecca72b0513ec935200ca938e058c6375248
--- diff/diff.c
+++ diff/diff.c
@@ -145,14 +145,18 @@ diffreg(char *file1, char *file2, bool do_patience, bo
 	struct diff_result *result;
 	int rc;
 	const struct diff_config *cfg;
+	int diff_flags = 0;
 	
 	cfg = do_patience ? &diff_config_patience : &diff_config;
 
 	f1 = openfile(file1, &str1, &st1);
 	f2 = openfile(file2, &str2, &st2);
 
+	if (ignore_whitespace)
+		diff_flags |= DIFF_FLAG_IGNORE_WHITESPACE;
+
 	result = diff_main(cfg, f1, str1, st1.st_size, f2, str2, st2.st_size,
-	    ignore_whitespace);
+	    diff_flags);
 #if 0
 	rc = diff_output_plain(stdout, &info, result);
 #else
blob - 8f4d84bc1f35dc43c975210732bbfc5572d1970c
blob + 9479d3112b7ca78b893d54f7948605a4e532da35
--- include/diff/diff_main.h
+++ include/diff/diff_main.h
@@ -43,9 +43,11 @@ struct diff_data {
 	ARRAYLIST(struct diff_atom) atoms;
 	struct diff_data *root;
 
-	bool ignore_whitespace;
+	int diff_flags;
 };
 
+#define DIFF_FLAG_IGNORE_WHITESPACE	0x00000001
+
 void diff_data_free(struct diff_data *diff_data);
 
 struct diff_chunk;
@@ -174,5 +176,5 @@ struct diff_result *diff_main(const struct diff_config
 			      FILE *left_f, const uint8_t *left_data,
 			      off_t left_len,
 			      FILE *right_f, const uint8_t *right_data,
-			      off_t right_len, bool ignore_whitespace);
+			      off_t right_len, int diff_flags);
 void diff_result_free(struct diff_result *result);
blob - c31b9e6e33142ba75f981720737dd4b978c52a07
blob + 72a7a3d9970ce9219dcadb1b60ce2c935437cb03
--- lib/diff_main.c
+++ lib/diff_main.c
@@ -106,10 +106,8 @@ diff_atom_cmp(int *cmp,
 	      const struct diff_atom *right)
 {
 	off_t remain_left, remain_right;
-	bool ignore_whitespace;
-
-	ignore_whitespace = (left->d->root->ignore_whitespace ||
-	    right->d->root->ignore_whitespace);
+	int flags = (left->d->root->diff_flags | right->d->root->diff_flags);
+	bool ignore_whitespace = (flags & DIFF_FLAG_IGNORE_WHITESPACE);
 
 	if (!ignore_whitespace) {
 		if (!left->len && !right->len) {
@@ -292,7 +290,7 @@ chunk_added:
 
 void
 diff_data_init_root(struct diff_data *d, FILE *f, const uint8_t *data,
-    unsigned long long len, bool ignore_whitespace)
+    unsigned long long len, int diff_flags)
 {
 	*d = (struct diff_data){
 		.f = f,
@@ -300,7 +298,7 @@ diff_data_init_root(struct diff_data *d, FILE *f, cons
 		.data = data,
 		.len = len,
 		.root = d,
-		.ignore_whitespace = ignore_whitespace,
+		.diff_flags = diff_flags,
 	};
 }
 
@@ -478,7 +476,7 @@ struct diff_result *
 diff_main(const struct diff_config *config,
 	  FILE *left_f, const uint8_t *left_data, off_t left_len,
 	  FILE *right_f, const uint8_t *right_data, off_t right_len,
-	  bool ignore_whitespace)
+	  int diff_flags)
 {
 	struct diff_result *result = malloc(sizeof(struct diff_result));
 	if (!result)
@@ -486,9 +484,9 @@ diff_main(const struct diff_config *config,
 
 	*result = (struct diff_result){};
 	diff_data_init_root(&result->left, left_f, left_data, left_len,
-	    ignore_whitespace);
+	    diff_flags);
 	diff_data_init_root(&result->right, right_f, right_data, right_len,
-	    ignore_whitespace);
+	    diff_flags);
 
 	if (!config->atomize_func) {
 		result->rc = EINVAL;