Completely revamp the grab source code

Some of the (many) few changes are:
- Multithreading for significantly faster performance
- The -p/--predicate flag
- Byte offsets as the default
- No customizable colors (maybe this will come back later)
- Newer edition of mlib (formerly librune)

1 files changed, 0 insertions, 69 deletions

diff --git a/vendor/librune/man/u8wdth.3 b/vendor/librune/man/u8wdth.3
deleted file mode 100644
index 60fcada..0000000
--- a/vendor/librune/man/u8wdth.3
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-.Dd January 16 2024
-.Dt U8WDTH 3
-.Os
-.Sh NAME
-.Nm u8wdth
-.Nd Unicode codepoint width
-.Sh LIBRARY
-.Lb librune
-.Sh SYNOPSIS
-.In utf8.h
-.Ft int
-.Fn u8wdth "rune ch"
-.Sh DESCRIPTION
-The
-.Fn u8wdth
-function returns the number of bytes that would be occupied by the
-Unicode-codepoint
-.Fa ch
-if it was encoded as UTF-8.
-If
-.Fa ch
-is greater than
-.Dv RUNE_MAX ,
-a width of 0 is returned.
-.Pp
-If the exact UTF-8 encoded size of a codepoint is not relevant and you
-simply wish to allocate a buffer capable of holding a given number of
-UTF-8 codepoints,
-the
-.Dv U8_LEN_MAX
-macro may be preferable.
-.Pp
-This function treats invalid codepoints smaller than
-.Dv RUNE_MAX
-such as UTF-16 surrogates as valid.
-.Sh RETURN VALUES
-The
-.Fn u8wdth
-function returns the number of bytes required to UTF-8 encode the
-codepoint
-.Fa ch .
-.Sh EXAMPLES
-The following example allocates a buffer which is exactly large enough to
-hold the given UTF-32 string once it is converted to UTF-8.
-.Bd -literal -offset indent
-#define lengthof(a) (sizeof(a) / sizeof(*(a)))
-
-size_t bufsiz = 0;
-char8_t *buf;
-char32_t s[] = U\(dqIJsselmeer\(dq; /* ‘IJ’ takes 2 bytes */
-
-for (size_t i = 0; i < lengthof(s) - 1; i++)
-	bufsiz += u8wdth(s[i]);
-buf = malloc(bufsiz);
-.Ed
-.Sh SEE ALSO
-.Xr u8glen 3 ,
-.Xr u8len 3 ,
-.Xr unicode 7 ,
-.Xr utf-8 7
-.Sh STANDARDS
-.Rs
-.%A F. Yergeau
-.%D November 2003
-.%R RFC 3629
-.%T UTF-8, a transformation format of ISO 10646
-.Re
-.Sh AUTHORS
-.An Thomas Voss Aq Mt mail@thomasvoss.com