On Thu, May 11, 2017 at 05:49:53PM +0200, Pavel Hrdina wrote:
Simply tries to match the provided regex on a string and returns
the result. Useful if caller don't care about the matched substring
and want to just test if some pattern patches a string.
Signed-off-by: Pavel Hrdina <phrdina@xxxxxxxxxx>
---
src/libvirt_private.syms | 1 +
src/util/virstring.c | 34 ++++++++++++++++++++++++++++++++++
src/util/virstring.h | 3 +++
tests/virstringtest.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 85 insertions(+)
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index afb9100c50..d32c6e7549 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -2621,6 +2621,7 @@ virStringListHasString;
virStringListJoin;
virStringListLength;
virStringListRemove;
+virStringMatch;
virStringReplace;
virStringSearch;
virStringSortCompare;
diff --git a/src/util/virstring.c b/src/util/virstring.c
index 335e773d78..b95a8926bd 100644
--- a/src/util/virstring.c
+++ b/src/util/virstring.c
@@ -979,6 +979,40 @@ virStringSearch(const char *str,
}
/**
+ * virStringMatch:
+ * @str: string to match
+ * @regexp: POSIX Extended regular expression pattern used for matching
+ *
+ * Performs a POSIX extended regex search against a string.
+ * Returns 0 on match, -1 on error, 1 on no match.
+ */
+int
+virStringMatch(const char *str,
+ const char *regexp)
+{
+ regex_t re;
+ int ret = -1;
+ int rv;
+
+ VIR_DEBUG("match '%s' for '%s'", str, regexp);
+
+ if ((rv = regcomp(&re, regexp, REG_EXTENDED | REG_NOSUB)) != 0) {
+ char error[100];
+ regerror(rv, &re, error, sizeof(error));
+ virReportError(VIR_ERR_INTERNAL_ERROR,
+ _("error while compiling regular expression '%s': %s"),
+ regexp, error);
+ return -1;
+ }
+
+ if ((ret = regexec(&re, str, 0, NULL, 0)) != 0)
+ ret = 1;
This could be made easier if you just retuned bool true on match and false on no match/error. Even though that would ignore one (very unlikely) error, it works much more nicely with any usage this might get in libvirt. ACK with that changed.
Attachment:
signature.asc
Description: Digital signature
-- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list
