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• Matching-functions

Sin-match-everything

Match everything that remains, no matter what it is.

Signature

(sin-match-everything sin) → (mv match sin)

Arguments

sin — The sin stobj.

Returns

match — The entire remaining contents of the input stream, as a string, or nil if we're already at the end of the input stream.
    Type (or (stringp match) (not match)).

sin — The remainder of the input stream, which will now be empty. (The only reason you might care about it is to get the final line/column numbers.).

Examples:

(sin-match-everything [apple])
   -->
("apple" [])

(sin-match-everything [])
  -->
(nil [])

Definitions and Theorems

Function: sin-match-everything

(defun sin-match-everything (sin)
  (declare (xargs :stobjs (sin)))
  (declare (xargs :guard t))
  (let ((__function__ 'sin-match-everything))
    (declare (ignorable __function__))
    (b* ((len (sin-len sin))
         ((when (zp len)) (mv nil sin))
         (match (sin-firstn len sin))
         (sin (sin-nthcdr len sin)))
      (mv match sin))))

Theorem: return-type-of-sin-match-everything.match

(defthm return-type-of-sin-match-everything.match
  (b* (((mv ?match ?sin)
        (sin-match-everything sin)))
    (or (stringp match) (not match)))
  :rule-classes :type-prescription)

Theorem: str-match-everything.match-under-iff

(defthm str-match-everything.match-under-iff
  (b* (((mv ?match ?new-sin)
        (sin-match-everything sin)))
    (iff match (consp (strin-left sin)))))

Theorem: stringp-of-sin-match-everything.match

(defthm stringp-of-sin-match-everything.match
  (b* (((mv ?match ?new-sin)
        (sin-match-everything sin)))
    (equal (stringp match)
           (consp (strin-left sin)))))

Theorem: non-empty-of-sin-match-everything.match

(defthm non-empty-of-sin-match-everything.match
  (b* (((mv ?match ?new-sin)
        (sin-match-everything sin)))
    (iff (consp (explode match))
         (consp (strin-left sin)))))

Theorem: sin-match-everything-progress

(defthm sin-match-everything-progress
  (b* (((mv ?match new-sin)
        (sin-match-everything sin)))
    (equal (len (strin-left new-sin)) 0)))

Theorem: sin-match-everything-reconstruction

(defthm sin-match-everything-reconstruction
  (b* (((mv match new-sin)
        (sin-match-everything sin)))
    (equal (append (explode match)
                   (strin-left new-sin))
           (strin-left sin))))