mdocml: Const-ify some mchars arguments.

[kristaps@mdocml.bsd.lv]

Log Message:
-----------
Const-ify some mchars arguments.  I think these are non-const for historical
dumbness on my part.

Modified Files:
--------------
    mdocml:
        chars.c
        mandoc.3
        mandoc.h

Revision Data
-------------
Index: chars.c
===================================================================
RCS file: /usr/vhosts/mdocml.bsd.lv/cvs/mdocml/chars.c,v
retrieving revision 1.51
retrieving revision 1.52
diff -Lchars.c -Lchars.c -u -p -r1.51 -r1.52
--- chars.c
+++ chars.c
@@ -51,7 +51,8 @@ struct	mchars {
 	struct ln	**htab;
 };
 
-static	const struct ln	 *find(struct mchars *, const char *, size_t);
+static	const struct ln	 *find(const struct mchars *, 
+				const char *, size_t);
 
 void
 mchars_free(struct mchars *arg)
@@ -96,7 +97,7 @@ mchars_alloc(void)
 }
 
 int
-mchars_spec2cp(struct mchars *arg, const char *p, size_t sz)
+mchars_spec2cp(const struct mchars *arg, const char *p, size_t sz)
 {
 	const struct ln	*ln;
 
@@ -113,7 +114,8 @@ mchars_num2char(const char *p, size_t sz
 
 	if ((i = mandoc_strntoi(p, sz, 10)) < 0)
 		return('\0');
-	return(i > 0 && i < 256 && isprint(i) ? i : '\0');
+	return(i > 0 && i < 256 && isprint(i) ? 
+			/* LINTED */ i : '\0');
 }
 
 int
@@ -128,7 +130,8 @@ mchars_num2uc(const char *p, size_t sz)
 }
 
 const char *
-mchars_spec2str(struct mchars *arg, const char *p, size_t sz, size_t *rsz)
+mchars_spec2str(const struct mchars *arg, 
+		const char *p, size_t sz, size_t *rsz)
 {
 	const struct ln	*ln;
 
@@ -143,9 +146,9 @@ mchars_spec2str(struct mchars *arg, cons
 }
 
 static const struct ln *
-find(struct mchars *tab, const char *p, size_t sz)
+find(const struct mchars *tab, const char *p, size_t sz)
 {
-	struct ln	 *pp;
+	const struct ln	 *pp;
 	int		  hash;
 
 	assert(p);
Index: mandoc.3
===================================================================
RCS file: /usr/vhosts/mdocml.bsd.lv/cvs/mdocml/mandoc.3,v
retrieving revision 1.15
retrieving revision 1.16
diff -Lmandoc.3 -Lmandoc.3 -u -p -r1.15 -r1.16
--- mandoc.3
+++ mandoc.3
@@ -76,14 +76,14 @@
 .Fn mchars_num2uc "const char *cp" "size_t sz"
 .Ft "const char *"
 .Fo mchars_spec2str
-.Fa "struct mchars *p"
+.Fa "const struct mchars *p"
 .Fa "const char *cp"
 .Fa "size_t sz"
 .Fa "size_t *rsz"
 .Fc
 .Ft int
 .Fo mchars_spec2cp
-.Fa "struct mchars *p"
+.Fa "const struct mchars *p"
 .Fa "const char *cp"
 .Fa "size_t sz"
 .Ft "const char *"
Index: mandoc.h
===================================================================
RCS file: /usr/vhosts/mdocml.bsd.lv/cvs/mdocml/mandoc.h,v
retrieving revision 1.97
retrieving revision 1.98
diff -Lmandoc.h -Lmandoc.h -u -p -r1.97 -r1.98
--- mandoc.h
+++ mandoc.h
@@ -409,9 +409,9 @@ struct mchars	 *mchars_alloc(void);
 void		  mchars_free(struct mchars *);
 char	 	  mchars_num2char(const char *, size_t);
 int		  mchars_num2uc(const char *, size_t);
-int		  mchars_spec2cp(struct mchars *, 
+int		  mchars_spec2cp(const struct mchars *, 
 			const char *, size_t);
-const char	 *mchars_spec2str(struct mchars *, 
+const char	 *mchars_spec2str(const struct mchars *, 
 			const char *, size_t, size_t *);
 struct mparse	 *mparse_alloc(enum mparset, 
 			enum mandoclevel, mandocmsg, void *);
--
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