xbps-checkvers: fixed an endless loop with "reverts" containing extra alphanumeric chars.

NEWS

@@ -1,5 +1,9 @@
 xbps-0.48 (???):
 
+ * xbps-checkvers(1): fixed an endless loop while processing templates containing
+   extra alphanumeric characters in the `reverts' object. Added a new testcase
+   to verify its correctness.
+
 xbps-0.47 (2015-07-18):
 
  * When executing pkg configuration, override the umask with sane defaults.

bin/xbps-checkvers/main.c

@@ -533,7 +533,7 @@ check_reverts(const char *repover, const map_item_t reverts)
 		 * Check if it's the first character or the previous character is a
 		 * whitespace.
 		 */
-		if (p > sreverts && !isspace(p[-1]))
+		if (p > sreverts && !isalpha(p[-1]) && !isspace(p[-1]))
 			continue;
 		p += strlen(repover);
 		/*

tests/xbps/xbps-checkvers/checkvers.sh

@@ -301,6 +301,36 @@ EOF
 	atf_check_equal "$out" "pkgname: A repover: 1.1_1 srcpkgver: 1.0_1"
 }
 
+atf_test_case reverts_alpha
+
+reverts_alpha_head() {
+	atf_set "descr" "xbps-checkvers(8): test with reverts containing an alphanumeric character"
+}
+
+reverts_alpha_body() {
+	mkdir -p some_repo pkg_A void-packages/srcpkgs/fs-utils
+	touch pkg_A/file00
+	cat > void-packages/srcpkgs/fs-utils/template <<EOF
+pkgname=fs-utils
+reverts=v1.10_1
+version=1.10
+revision=1
+do_install() {
+	:
+}
+EOF
+	cd some_repo
+	xbps-create -A noarch -n fs-utils-1.10_1 -s "A pkg" ../pkg_A
+	atf_check_equal $? 0
+	xbps-rindex -d -a $PWD/*.xbps
+	atf_check_equal $? 0
+	cd ..
+	xbps-checkvers -R $PWD/some_repo -D $PWD/void-packages
+	out=`xbps-checkvers -R $PWD/some_repo -D $PWD/void-packages`
+	atf_check_equal $? 0
+	atf_check_equal "$out" "pkgname: fs-utils repover: 1.10_1 srcpkgver: 1.10_1"
+}
+
 atf_init_test_cases() {
 	atf_add_test_case srcpkg_newer
 	atf_add_test_case srcpkg_newer_with_refs
@@ -313,4 +343,5 @@ atf_init_test_cases() {
 	atf_add_test_case srcpkg_missing_pkgver
 	atf_add_test_case srcpkg_missing_pkgverrev
 	atf_add_test_case reverts
+	atf_add_test_case reverts_alpha
 }