Re: [PATCH v2 1/6] commit: provide a function to find a header in a buffer

[Junio C Hamano <gitster@pobox.com>]

Jeff King <peff@peff.net> writes:

> +const char *find_commit_header(const char *msg, const char *key, size_t *out_len)
> +{
> +	int key_len = strlen(key);
> +	const char *line = msg;
> +
> +	while (line) {
> +		const char *eol = strchrnul(line, '\n');
> +
> +		if (line == eol)
> +			return NULL;
> +
> +		if (eol - line > key_len &&
> +		    !strncmp(line, key, key_len) &&
> +		    line[key_len] == ' ') {
> +			*out_len = eol - line - key_len - 1;
> +			return line + key_len + 1;

Hmph.  Does this have to worry about continuation lines in the
header part e.g. mergetag?  If the original in pretty.c was only
about the encoding, it may not have mattered, but now because it is
made public, it may matter more.