From 30ce56dc76f3a098c42c7ac9701fc4a223847fa2 Mon Sep 17 00:00:00 2001
From: Tavian Barnes <tavianator@tavianator.com>
Date: Sat, 13 Feb 2016 17:14:03 -0500
Subject: Implement -iname and -ipath.

---
 Makefile |  2 +-
 eval.c   |  8 ++++----
 parse.c  | 49 +++++++++++++++++++++++++++++++++++++++++++++----
 tests.sh | 10 +++++++++-
 4 files changed, 59 insertions(+), 10 deletions(-)

diff --git a/Makefile b/Makefile
index d6e7870..02f6554 100644
--- a/Makefile
+++ b/Makefile
@@ -15,7 +15,7 @@ LDFLAGS ?=
 DEPFLAGS ?= -MD -MP -MF $(@:.o=.d)
 RM ?= rm -f
 
-LOCAL_CPPFLAGS := -D_DEFAULT_SOURCE
+LOCAL_CPPFLAGS := -D_DEFAULT_SOURCE -D_GNU_SOURCE
 LOCAL_CFLAGS := -std=c99
 
 ALL_CPPFLAGS = $(LOCAL_CPPFLAGS) $(CPPFLAGS)
diff --git a/eval.c b/eval.c
index cd9b2e5..d0c8b04 100644
--- a/eval.c
+++ b/eval.c
@@ -308,7 +308,7 @@ bool eval_links(const struct expr *expr, struct eval_state *state) {
 }
 
 /**
- * -name test.
+ * -i?name test.
  */
 bool eval_name(const struct expr *expr, struct eval_state *state) {
 	struct BFTW *ftwbuf = state->ftwbuf;
@@ -333,17 +333,17 @@ bool eval_name(const struct expr *expr, struct eval_state *state) {
 		}
 	}
 
-	bool ret = fnmatch(expr->sdata, name, 0) == 0;
+	bool ret = fnmatch(expr->sdata, name, expr->idata) == 0;
 	free(copy);
 	return ret;
 }
 
 /**
- * -path test.
+ * -i?path test.
  */
 bool eval_path(const struct expr *expr, struct eval_state *state) {
 	struct BFTW *ftwbuf = state->ftwbuf;
-	return fnmatch(expr->sdata, ftwbuf->path, 0) == 0;
+	return fnmatch(expr->sdata, ftwbuf->path, expr->idata) == 0;
 }
 
 /**
diff --git a/parse.c b/parse.c
index 6272ba0..f894d5b 100644
--- a/parse.c
+++ b/parse.c
@@ -12,6 +12,7 @@
 #include "bfs.h"
 #include <errno.h>
 #include <fcntl.h>
+#include <fnmatch.h>
 #include <limits.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -417,6 +418,42 @@ static struct expr *parse_depth(struct parser_state *state, const char *option,
 	return new_option(state, option);
 }
 
+/**
+ * Set the FNM_CASEFOLD flag, if supported.
+ */
+static struct expr *set_fnm_casefold(struct expr *expr, bool casefold) {
+	if (expr) {
+		if (casefold) {
+#ifdef FNM_CASEFOLD
+			expr->idata = FNM_CASEFOLD;
+#else
+			fprintf(stderr, "%s is missing platform support.\n", option);
+			free(expr);
+			expr = NULL;
+#endif
+		} else {
+			expr->idata = 0;
+		}
+	}
+	return expr;
+}
+
+/**
+ * Parse -i?name.
+ */
+static struct expr *parse_name(struct parser_state *state, const char *option, bool casefold) {
+	struct expr *expr = parse_test_sdata(state, option, eval_name);
+	return set_fnm_casefold(expr, casefold);
+}
+
+/**
+ * Parse -i?path, -i?wholename.
+ */
+static struct expr *parse_path(struct parser_state *state, const char *option, bool casefold) {
+	struct expr *expr = parse_test_sdata(state, option, eval_path);
+	return set_fnm_casefold(expr, casefold);
+}
+
 /**
  * Parse -samefile FILE.
  */
@@ -585,8 +622,12 @@ static struct expr *parse_literal(struct parser_state *state) {
 		break;
 
 	case 'i':
-		if (strcmp(arg, "-inum") == 0) {
+		if (strcmp(arg, "-iname") == 0) {
+			return parse_name(state, arg, true);
+		} else if (strcmp(arg, "-inum") == 0) {
 			return parse_test_icmp(state, arg, eval_inum);
+		} else if (strcmp(arg, "-ipath") == 0 || strcmp(arg, "-iwholename") == 0) {
+			return parse_path(state, arg, true);
 		}
 		break;
 
@@ -610,7 +651,7 @@ static struct expr *parse_literal(struct parser_state *state) {
 
 	case 'n':
 		if (strcmp(arg, "-name") == 0) {
-			return parse_test_sdata(state, arg, eval_name);
+			return parse_name(state, arg, false);
 		} else if (strcmp(arg, "-newer") == 0) {
 			return parse_acnewer(state, arg, MTIME);
 		} else if (strcmp(arg, "-nocolor") == 0) {
@@ -626,7 +667,7 @@ static struct expr *parse_literal(struct parser_state *state) {
 
 	case 'p':
 		if (strcmp(arg, "-path") == 0) {
-			return parse_test_sdata(state, arg, eval_path);
+			return parse_path(state, arg, false);
 		} else if (strcmp(arg, "-print") == 0) {
 			return new_action(state, eval_print);
 		} else if (strcmp(arg, "-print0") == 0) {
@@ -672,7 +713,7 @@ static struct expr *parse_literal(struct parser_state *state) {
 			state->warn = true;
 			return new_positional_option(state);
 		} else if (strcmp(arg, "-wholename") == 0) {
-			return parse_test_sdata(state, arg, eval_path);
+			return parse_path(state, arg, false);
 		} else if (strcmp(arg, "-writable") == 0) {
 			return new_test_idata(state, eval_access, W_OK);
 		}
diff --git a/tests.sh b/tests.sh
index 97d274b..cbfefcb 100755
--- a/tests.sh
+++ b/tests.sh
@@ -215,7 +215,15 @@ function test_0036() {
     find_diff "//" -maxdepth 0 -name '/' 2>/dev/null
 }
 
-for i in {1..36}; do
+function test_0037() {
+    find_diff "$basic" -iname '*F*'
+}
+
+function test_0038() {
+    find_diff "$basic" -ipath "$basic/*F*"
+}
+
+for i in {1..38}; do
     test="test_$(printf '%04d' $i)"
     "$test" "$dir"
     status=$?
-- 
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