From: "brian m. carlson" <sandals@crustytoothpaste.net>
To: git@vger.kernel.org
Cc: Jeff King <peff@peff.net>,
Michael Haggerty <mhagger@alum.mit.edu>,
Junio C Hamano <gitster@pobox.com>,
Ramsay Jones <ramsay@ramsayjones.plus.com>
Subject: [PATCH v5 01/19] hex: introduce parse_oid_hex
Date: Tue, 21 Feb 2017 23:47:19 +0000 [thread overview]
Message-ID: <20170221234737.894681-2-sandals@crustytoothpaste.net> (raw)
In-Reply-To: <20170221234737.894681-1-sandals@crustytoothpaste.net>
Introduce a function, parse_oid_hex, which parses a hexadecimal object
ID and if successful, sets a pointer to just beyond the last character.
This allows for simpler, more robust parsing without needing to
hard-code integer values throughout the codebase.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
---
cache.h | 9 +++++++++
hex.c | 8 ++++++++
2 files changed, 17 insertions(+)
diff --git a/cache.h b/cache.h
index 61fc86e6d7..e03a672d15 100644
--- a/cache.h
+++ b/cache.h
@@ -1319,6 +1319,15 @@ extern char *oid_to_hex_r(char *out, const struct object_id *oid);
extern char *sha1_to_hex(const unsigned char *sha1); /* static buffer result! */
extern char *oid_to_hex(const struct object_id *oid); /* same static buffer as sha1_to_hex */
+/*
+ * Parse a 40-character hexadecimal object ID starting from hex, updating the
+ * pointer specified by end when parsing stops. The resulting object ID is
+ * stored in oid. Returns 0 on success. Parsing will stop on the first NUL or
+ * other invalid character. end is only updated on success; otherwise, it is
+ * unmodified.
+ */
+extern int parse_oid_hex(const char *hex, struct object_id *oid, const char **end);
+
extern int interpret_branch_name(const char *str, int len, struct strbuf *);
extern int get_oid_mb(const char *str, struct object_id *oid);
diff --git a/hex.c b/hex.c
index 845b01a874..eab7b626ee 100644
--- a/hex.c
+++ b/hex.c
@@ -53,6 +53,14 @@ int get_oid_hex(const char *hex, struct object_id *oid)
return get_sha1_hex(hex, oid->hash);
}
+int parse_oid_hex(const char *hex, struct object_id *oid, const char **end)
+{
+ int ret = get_oid_hex(hex, oid);
+ if (!ret)
+ *end = hex + GIT_SHA1_HEXSZ;
+ return ret;
+}
+
char *sha1_to_hex_r(char *buffer, const unsigned char *sha1)
{
static const char hex[] = "0123456789abcdef";
--
2.11.0
next prev parent reply other threads:[~2017-02-21 23:47 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-21 23:47 [PATCH v5 00/19] object_id part 6 brian m. carlson
2017-02-21 23:47 ` brian m. carlson [this message]
2017-02-21 23:47 ` [PATCH v5 02/19] builtin/commit: convert to struct object_id brian m. carlson
2017-02-21 23:47 ` [PATCH v5 03/19] builtin/diff-tree: " brian m. carlson
2017-02-22 18:50 ` Junio C Hamano
2017-02-22 19:16 ` Jeff King
2017-02-22 20:04 ` Junio C Hamano
2017-02-22 23:22 ` brian m. carlson
2017-02-22 23:38 ` [PATCH] t: add multi-parent test of diff-tree --stdin brian m. carlson
2017-02-22 23:42 ` Junio C Hamano
2017-02-22 23:45 ` Jeff King
2017-02-22 23:45 ` brian m. carlson
2017-02-21 23:47 ` [PATCH v5 04/19] builtin/describe: convert to struct object_id brian m. carlson
2017-02-21 23:47 ` [PATCH v5 05/19] builtin/fast-export: " brian m. carlson
2017-02-21 23:47 ` [PATCH v5 06/19] builtin/fmt-merge-message: " brian m. carlson
2017-02-21 23:47 ` [PATCH v5 07/19] builtin/grep: " brian m. carlson
2017-02-21 23:47 ` [PATCH v5 08/19] builtin/branch: " brian m. carlson
2017-02-21 23:47 ` [PATCH v5 09/19] builtin/clone: " brian m. carlson
2017-02-21 23:47 ` [PATCH v5 10/19] builtin/merge: " brian m. carlson
2017-02-21 23:47 ` [PATCH v5 11/19] Convert remaining callers of resolve_refdup to object_id brian m. carlson
2017-02-21 23:47 ` [PATCH v5 12/19] builtin/replace: convert to struct object_id brian m. carlson
2017-02-21 23:47 ` [PATCH v5 13/19] reflog-walk: convert struct reflog_info " brian m. carlson
2017-02-21 23:47 ` [PATCH v5 14/19] refs: convert each_reflog_ent_fn " brian m. carlson
2017-02-21 23:47 ` [PATCH v5 15/19] refs: simplify parsing of reflog entries brian m. carlson
2017-02-21 23:47 ` [PATCH v5 16/19] sha1_file: introduce an nth_packed_object_oid function brian m. carlson
2017-02-21 23:47 ` [PATCH v5 17/19] Convert object iteration callbacks to struct object_id brian m. carlson
2017-02-21 23:47 ` [PATCH v5 18/19] builtin/merge-base: convert " brian m. carlson
2017-02-21 23:47 ` [PATCH v5 19/19] wt-status: " brian m. carlson
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