Martin Ågren <martin.agren@xxxxxxxxx> writes:
> I'm open for suggestions on the naming of `prefix_suffix_lines()`...
Is there a verb that means "have/place the thing in between two
other things" or "Bring two things and place them on each side of
the third thing" in a more concise way? Wrap? Sandwich? Enclose?
> +
> +/*
> + * Write the message to the file, prefixing and suffixing
> + * each line with `prefix` resp. `suffix`.
> + */
> +void prefix_suffix_lines(FILE *f, const char *prefix,
> + const char *message, const char *suffix);
> +
> ...
> diff --git a/usage.c b/usage.c
> index cdd534c9df..80f9c1d14b 100644
> --- a/usage.c
> +++ b/usage.c
> @@ -6,6 +6,24 @@
> #include "git-compat-util.h"
> #include "cache.h"
>
> +void prefix_suffix_lines(FILE *f,
> + const char *prefix,
> + const char *message,
> + const char *suffix)
> +{
> + const char *cp, *np;
> +
> + for (cp = message; *cp; cp = np) {
> + np = strchrnul(cp, '\n');
> + fprintf(f, "%s%.*s%s\n",
> + prefix,
> + (int)(np - cp), cp,
> + suffix);
> + if (*np)
> + np++;
> + }
> +}
> +
> void vreportf(const char *prefix, const char *err, va_list params)
> {
> char msg[4096];
I guess we can directly use this even in the codepath that
implements die() without having to worry about the helper making any
extra allocation, which is good.
