lib.c: Fix some commentary blunders.

[runlisp] / lib.c

diff --git a/lib.c b/lib.c
index a73f0d0..b509cea 100644 (file)
--- a/lib.c
+++ b/lib.c
@@ -377,7 +377,7 @@ void argv_prependl(struct argv *av, ...)
 /* Return nonzero if the AN-byte string A is strictly precedes the BN-byte
  * string B in a lexicographic ordering.
  *
- * All comparisons of keys is handled by this function.
+ * All comparison of keys is handled by this function.
  */
 static int str_lt(const char *a, size_t an, const char *b, size_t bn)
 {
@@ -515,7 +515,7 @@ void treap_insert(struct treap *t, const struct treap_path *p,
      *           /   \                       /   \
      *         X       Y                   Y       Z
      *
-     * On the other hand, if we ere planning to hook N as the right subtree
+     * On the other hand, if we were planning to hook N as the right subtree
      * of U, then we do the opposite rotation:
      *
      *             |                           |
@@ -735,7 +735,7 @@ static void check_subtree(struct treap_node *n, unsigned maxwt,
   if (khi) assert(STRCMP(n->k, <, khi));
 
   /* Check the left subtree.  Node weights must be bounded above by our own
-   * weight.  And everykey in the left subtree must be smaller than our
+   * weight.  And every key in the left subtree must be smaller than our
    * current key.  We propagate the lower bound.
    */
   if (n->left) check_subtree(n->left, n->wt, klo, n->k);
@@ -1336,8 +1336,9 @@ static void filter_string(const char *p, const char *l,
 
 /* Scan and resolve a `[SECT:]VAR' specifier at P.
  *
- * Return the address of the next character following the specifier.  L is a
- * limit on the region of the buffer that we should process; SB is the
+ * Return the address of the next character following the specifier; and set
+ * *VAR_OUT to point to the variable we found, or null if it's not there.  L
+ * is a limit on the region of the buffer that we should process; SB is the
  * substitution state which provides the home section if none is given
  * explicitly; FILE and LINE are the source location to blame for problems.
  */
@@ -1455,7 +1456,7 @@ static const char *subst(const char *p, const char *l,
        * to it.
        */
 
-      /* If there's no next charact3er then we should be upset. */
+      /* If there's no next character then we should be upset. */
       p++; if (p >= l) lose("%s:%u: unfinished `\\' escape", file, line);
 
       if (!(f&SF_SKIP)) {
@@ -1587,13 +1588,13 @@ static const char *subst(const char *p, const char *l,
               * toothpick, so now we need Q + (Q + 1) = 2 Q + 1 toothpicks.
               *
               * Calculate this here rather than at each point toothpicks
-              * needs to be deployed.
+              * need to be deployed.
               */
 
              subqfilt = 2*subqfilt + 1;
 
            else if (t - p == 1 && *p == 'l')
-             /* `u' -- convert to uppercase.
+             /* `l' -- convert to lowercase.
               *
               * If a case conversion is already set, then that will override
               * whatever we do here, so don't bother.