Reduce the level of duplication between vfprintf() and vfwprintf()

by moving the positional argument handling code to a new file,
printf-pos.c, and moving common definitions to printflocal.h.
No functional change intended.

1 files changed, 788 insertions, 0 deletions

diff --git a/lib/libc/stdio/printf-pos.c b/lib/libc/stdio/printf-pos.c
new file mode 100644
index 0000000..c9b439b
--- /dev/null
+++ b/lib/libc/stdio/printf-pos.c
@@ -0,0 +1,788 @@
+/*-
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "@(#)vfprintf.c	8.1 (Berkeley) 6/4/93";
+#endif /* LIBC_SCCS and not lint */
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+/*
+ * This is the code responsible for handling positional arguments
+ * (%m$ and %m$.n$) for vfprintf() and vfwprintf().
+ */
+
+#include "namespace.h"
+#include <sys/types.h>
+
+#include <ctype.h>
+#include <limits.h>
+#include <locale.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <wchar.h>
+#include <printf.h>
+
+#include <stdarg.h>
+#include "un-namespace.h"
+
+#include "libc_private.h"
+#include "local.h"
+#include "fvwrite.h"
+#include "printflocal.h"
+
+/*
+ * Type ids for argument type table.
+ */
+enum typeid {
+	T_UNUSED, TP_SHORT, T_INT, T_U_INT, TP_INT,
+	T_LONG, T_U_LONG, TP_LONG, T_LLONG, T_U_LLONG, TP_LLONG,
+	T_PTRDIFFT, TP_PTRDIFFT, T_SIZET, TP_SIZET,
+	T_INTMAXT, T_UINTMAXT, TP_INTMAXT, TP_VOID, TP_CHAR, TP_SCHAR,
+	T_DOUBLE, T_LONG_DOUBLE, T_WINT, TP_WCHAR
+};
+
+/* An expandable array of types. */
+struct typetable {
+	enum typeid *table; /* table of types */
+	enum typeid stattable[STATIC_ARG_TBL_SIZE];
+	int tablesize;		/* current size of type table */
+	int tablemax;		/* largest used index in table */
+	int nextarg;		/* 1-based argument index */
+};
+
+static void	__grow_type_table(struct typetable *);
+
+/*
+ * Initialize a struct typetable.
+ */
+static inline void
+inittypes(struct typetable *types)
+{
+	int n;
+
+	types->table = types->stattable;
+	types->tablesize = STATIC_ARG_TBL_SIZE;
+	types->tablemax = 0; 
+	types->nextarg = 1;
+	for (n = 0; n < STATIC_ARG_TBL_SIZE; n++)
+		types->table[n] = T_UNUSED;
+}
+
+/*
+ * struct typetable destructor.
+ */ 
+static inline void
+freetypes(struct typetable *types)
+{
+
+	if (types->table != types->stattable)
+		free (types->table);
+}
+
+/*
+ * Add an argument type to the table, expanding if necessary.
+ */
+static inline void
+addtype(struct typetable *types, enum typeid type)
+{
+
+	if (types->nextarg >= types->tablesize)
+		__grow_type_table(types);
+	if (types->nextarg > types->tablemax)
+		types->tablemax = types->nextarg;
+	types->table[types->nextarg++] = type;
+}
+
+static inline void
+addsarg(struct typetable *types, int flags)
+{
+
+	if (flags & INTMAXT)
+		addtype(types, T_INTMAXT);
+	else if (flags & SIZET)
+		addtype(types, T_SIZET);
+	else if (flags & PTRDIFFT)
+		addtype(types, T_PTRDIFFT);
+	else if (flags & LLONGINT)
+		addtype(types, T_LLONG);
+	else if (flags & LONGINT)
+		addtype(types, T_LONG);
+	else
+		addtype(types, T_INT);
+}
+
+static inline void
+adduarg(struct typetable *types, int flags)
+{
+
+	if (flags & INTMAXT)
+		addtype(types, T_UINTMAXT);
+	else if (flags & SIZET)
+		addtype(types, T_SIZET);
+	else if (flags & PTRDIFFT)
+		addtype(types, T_PTRDIFFT);
+	else if (flags & LLONGINT)
+		addtype(types, T_U_LLONG);
+	else if (flags & LONGINT)
+		addtype(types, T_U_LONG);
+	else
+		addtype(types, T_U_INT);
+}
+
+/*
+ * Add * arguments to the type array.
+ */
+static inline void
+addaster(struct typetable *types, char **fmtp)
+{
+	char *cp;
+	int n2;
+
+	n2 = 0;
+	cp = *fmtp;
+	while (is_digit(*cp)) {
+		n2 = 10 * n2 + to_digit(*cp);
+		cp++;
+	}
+	if (*cp == '$') {
+		int hold = types->nextarg;
+		types->nextarg = n2;
+		addtype(types, T_INT);
+		types->nextarg = hold;
+		*fmtp = ++cp;
+	} else {
+		addtype(types, T_INT);
+	}
+}
+
+static inline void
+addwaster(struct typetable *types, wchar_t **fmtp)
+{
+	wchar_t *cp;
+	int n2;
+
+	n2 = 0;
+	cp = *fmtp;
+	while (is_digit(*cp)) {
+		n2 = 10 * n2 + to_digit(*cp);
+		cp++;
+	}
+	if (*cp == '$') {
+		int hold = types->nextarg;
+		types->nextarg = n2;
+		addtype(types, T_INT);
+		types->nextarg = hold;
+		*fmtp = ++cp;
+	} else {
+		addtype(types, T_INT);
+	}
+}
+
+/*
+ * Find all arguments when a positional parameter is encountered.  Returns a
+ * table, indexed by argument number, of pointers to each arguments.  The
+ * initial argument table should be an array of STATIC_ARG_TBL_SIZE entries.
+ * It will be replaces with a malloc-ed one if it overflows.
+ */ 
+void
+__find_arguments (const char *fmt0, va_list ap, union arg **argtable)
+{
+	char *fmt;		/* format string */
+	int ch;			/* character from fmt */
+	int n;			/* handy integer (short term usage) */
+	int flags;		/* flags as above */
+	int width;		/* width from format (%8d), or 0 */
+	struct typetable types;	/* table of types */
+
+	fmt = (char *)fmt0;
+	inittypes(&types);
+
+	/*
+	 * Scan the format for conversions (`%' character).
+	 */
+	for (;;) {
+		while ((ch = *fmt) != '\0' && ch != '%')
+			fmt++;
+		if (ch == '\0')
+			goto done;
+		fmt++;		/* skip over '%' */
+
+		flags = 0;
+		width = 0;
+
+rflag:		ch = *fmt++;
+reswitch:	switch (ch) {
+		case ' ':
+		case '#':
+			goto rflag;
+		case '*':
+			addaster(&types, &fmt);
+			goto rflag;
+		case '-':
+		case '+':
+		case '\'':
+			goto rflag;
+		case '.':
+			if ((ch = *fmt++) == '*') {
+				addaster(&types, &fmt);
+				goto rflag;
+			}
+			while (is_digit(ch)) {
+				ch = *fmt++;
+			}
+			goto reswitch;
+		case '0':
+			goto rflag;
+		case '1': case '2': case '3': case '4':
+		case '5': case '6': case '7': case '8': case '9':
+			n = 0;
+			do {
+				n = 10 * n + to_digit(ch);
+				ch = *fmt++;
+			} while (is_digit(ch));
+			if (ch == '$') {
+				types.nextarg = n;
+				goto rflag;
+			}
+			width = n;
+			goto reswitch;
+#ifndef NO_FLOATING_POINT
+		case 'L':
+			flags |= LONGDBL;
+			goto rflag;
+#endif
+		case 'h':
+			if (flags & SHORTINT) {
+				flags &= ~SHORTINT;
+				flags |= CHARINT;
+			} else
+				flags |= SHORTINT;
+			goto rflag;
+		case 'j':
+			flags |= INTMAXT;
+			goto rflag;
+		case 'l':
+			if (flags & LONGINT) {
+				flags &= ~LONGINT;
+				flags |= LLONGINT;
+			} else
+				flags |= LONGINT;
+			goto rflag;
+		case 'q':
+			flags |= LLONGINT;	/* not necessarily */
+			goto rflag;
+		case 't':
+			flags |= PTRDIFFT;
+			goto rflag;
+		case 'z':
+			flags |= SIZET;
+			goto rflag;
+		case 'C':
+			flags |= LONGINT;
+			/*FALLTHROUGH*/
+		case 'c':
+			if (flags & LONGINT)
+				addtype(&types, T_WINT);
+			else
+				addtype(&types, T_INT);
+			break;
+		case 'D':
+			flags |= LONGINT;
+			/*FALLTHROUGH*/
+		case 'd':
+		case 'i':
+			addsarg(&types, flags);
+			break;
+#ifndef NO_FLOATING_POINT
+		case 'a':
+		case 'A':
+		case 'e':
+		case 'E':
+		case 'f':
+		case 'g':
+		case 'G':
+			if (flags & LONGDBL)
+				addtype(&types, T_LONG_DOUBLE);
+			else
+				addtype(&types, T_DOUBLE);
+			break;
+#endif /* !NO_FLOATING_POINT */
+		case 'n':
+			if (flags & INTMAXT)
+				addtype(&types, TP_INTMAXT);
+			else if (flags & PTRDIFFT)
+				addtype(&types, TP_PTRDIFFT);
+			else if (flags & SIZET)
+				addtype(&types, TP_SIZET);
+			else if (flags & LLONGINT)
+				addtype(&types, TP_LLONG);
+			else if (flags & LONGINT)
+				addtype(&types, TP_LONG);
+			else if (flags & SHORTINT)
+				addtype(&types, TP_SHORT);
+			else if (flags & CHARINT)
+				addtype(&types, TP_SCHAR);
+			else
+				addtype(&types, TP_INT);
+			continue;	/* no output */
+		case 'O':
+			flags |= LONGINT;
+			/*FALLTHROUGH*/
+		case 'o':
+			adduarg(&types, flags);
+			break;
+		case 'p':
+			addtype(&types, TP_VOID);
+			break;
+		case 'S':
+			flags |= LONGINT;
+			/*FALLTHROUGH*/
+		case 's':
+			if (flags & LONGINT)
+				addtype(&types, TP_WCHAR);
+			else
+				addtype(&types, TP_CHAR);
+			break;
+		case 'U':
+			flags |= LONGINT;
+			/*FALLTHROUGH*/
+		case 'u':
+		case 'X':
+		case 'x':
+			adduarg(&types, flags);
+			break;
+		default:	/* "%?" prints ?, unless ? is NUL */
+			if (ch == '\0')
+				goto done;
+			break;
+		}
+	}
+done:
+	/*
+	 * Build the argument table.
+	 */
+	if (types.tablemax >= STATIC_ARG_TBL_SIZE) {
+		*argtable = (union arg *)
+		    malloc (sizeof (union arg) * (types.tablemax + 1));
+	}
+
+	(*argtable) [0].intarg = 0;
+	for (n = 1; n <= types.tablemax; n++) {
+		switch (types.table[n]) {
+		    case T_UNUSED: /* whoops! */
+			(*argtable) [n].intarg = va_arg (ap, int);
+			break;
+		    case TP_SCHAR:
+			(*argtable) [n].pschararg = va_arg (ap, signed char *);
+			break;
+		    case TP_SHORT:
+			(*argtable) [n].pshortarg = va_arg (ap, short *);
+			break;
+		    case T_INT:
+			(*argtable) [n].intarg = va_arg (ap, int);
+			break;
+		    case T_U_INT:
+			(*argtable) [n].uintarg = va_arg (ap, unsigned int);
+			break;
+		    case TP_INT:
+			(*argtable) [n].pintarg = va_arg (ap, int *);
+			break;
+		    case T_LONG:
+			(*argtable) [n].longarg = va_arg (ap, long);
+			break;
+		    case T_U_LONG:
+			(*argtable) [n].ulongarg = va_arg (ap, unsigned long);
+			break;
+		    case TP_LONG:
+			(*argtable) [n].plongarg = va_arg (ap, long *);
+			break;
+		    case T_LLONG:
+			(*argtable) [n].longlongarg = va_arg (ap, long long);
+			break;
+		    case T_U_LLONG:
+			(*argtable) [n].ulonglongarg = va_arg (ap, unsigned long long);
+			break;
+		    case TP_LLONG:
+			(*argtable) [n].plonglongarg = va_arg (ap, long long *);
+			break;
+		    case T_PTRDIFFT:
+			(*argtable) [n].ptrdiffarg = va_arg (ap, ptrdiff_t);
+			break;
+		    case TP_PTRDIFFT:
+			(*argtable) [n].pptrdiffarg = va_arg (ap, ptrdiff_t *);
+			break;
+		    case T_SIZET:
+			(*argtable) [n].sizearg = va_arg (ap, size_t);
+			break;
+		    case TP_SIZET:
+			(*argtable) [n].psizearg = va_arg (ap, size_t *);
+			break;
+		    case T_INTMAXT:
+			(*argtable) [n].intmaxarg = va_arg (ap, intmax_t);
+			break;
+		    case T_UINTMAXT:
+			(*argtable) [n].uintmaxarg = va_arg (ap, uintmax_t);
+			break;
+		    case TP_INTMAXT:
+			(*argtable) [n].pintmaxarg = va_arg (ap, intmax_t *);
+			break;
+		    case T_DOUBLE:
+#ifndef NO_FLOATING_POINT
+			(*argtable) [n].doublearg = va_arg (ap, double);
+#endif
+			break;
+		    case T_LONG_DOUBLE:
+#ifndef NO_FLOATING_POINT
+			(*argtable) [n].longdoublearg = va_arg (ap, long double);
+#endif
+			break;
+		    case TP_CHAR:
+			(*argtable) [n].pchararg = va_arg (ap, char *);
+			break;
+		    case TP_VOID:
+			(*argtable) [n].pvoidarg = va_arg (ap, void *);
+			break;
+		    case T_WINT:
+			(*argtable) [n].wintarg = va_arg (ap, wint_t);
+			break;
+		    case TP_WCHAR:
+			(*argtable) [n].pwchararg = va_arg (ap, wchar_t *);
+			break;
+		}
+	}
+
+	freetypes(&types);
+}
+
+/* wchar version of __find_arguments. */
+void
+__find_warguments (const wchar_t *fmt0, va_list ap, union arg **argtable)
+{
+	wchar_t *fmt;		/* format string */
+	wchar_t ch;		/* character from fmt */
+	int n;			/* handy integer (short term usage) */
+	int flags;		/* flags as above */
+	int width;		/* width from format (%8d), or 0 */
+	struct typetable types;	/* table of types */
+
+	fmt = (wchar_t *)fmt0;
+	inittypes(&types);
+
+	/*
+	 * Scan the format for conversions (`%' character).
+	 */
+	for (;;) {
+		while ((ch = *fmt) != '\0' && ch != '%')
+			fmt++;
+		if (ch == '\0')
+			goto done;
+		fmt++;		/* skip over '%' */
+
+		flags = 0;
+		width = 0;
+
+rflag:		ch = *fmt++;
+reswitch:	switch (ch) {
+		case ' ':
+		case '#':
+			goto rflag;
+		case '*':
+			addwaster(&types, &fmt);
+			goto rflag;
+		case '-':
+		case '+':
+		case '\'':
+			goto rflag;
+		case '.':
+			if ((ch = *fmt++) == '*') {
+				addwaster(&types, &fmt);
+				goto rflag;
+			}
+			while (is_digit(ch)) {
+				ch = *fmt++;
+			}
+			goto reswitch;
+		case '0':
+			goto rflag;
+		case '1': case '2': case '3': case '4':
+		case '5': case '6': case '7': case '8': case '9':
+			n = 0;
+			do {
+				n = 10 * n + to_digit(ch);
+				ch = *fmt++;
+			} while (is_digit(ch));
+			if (ch == '$') {
+				types.nextarg = n;
+				goto rflag;
+			}
+			width = n;
+			goto reswitch;
+#ifndef NO_FLOATING_POINT
+		case 'L':
+			flags |= LONGDBL;
+			goto rflag;
+#endif
+		case 'h':
+			if (flags & SHORTINT) {
+				flags &= ~SHORTINT;
+				flags |= CHARINT;
+			} else
+				flags |= SHORTINT;
+			goto rflag;
+		case 'j':
+			flags |= INTMAXT;
+			goto rflag;
+		case 'l':
+			if (flags & LONGINT) {
+				flags &= ~LONGINT;
+				flags |= LLONGINT;
+			} else
+				flags |= LONGINT;
+			goto rflag;
+		case 'q':
+			flags |= LLONGINT;	/* not necessarily */
+			goto rflag;
+		case 't':
+			flags |= PTRDIFFT;
+			goto rflag;
+		case 'z':
+			flags |= SIZET;
+			goto rflag;
+		case 'C':
+			flags |= LONGINT;
+			/*FALLTHROUGH*/
+		case 'c':
+			if (flags & LONGINT)
+				addtype(&types, T_WINT);
+			else
+				addtype(&types, T_INT);
+			break;
+		case 'D':
+			flags |= LONGINT;
+			/*FALLTHROUGH*/
+		case 'd':
+		case 'i':
+			addsarg(&types, flags);
+			break;
+#ifndef NO_FLOATING_POINT
+		case 'a':
+		case 'A':
+		case 'e':
+		case 'E':
+		case 'f':
+		case 'g':
+		case 'G':
+			if (flags & LONGDBL)
+				addtype(&types, T_LONG_DOUBLE);
+			else
+				addtype(&types, T_DOUBLE);
+			break;
+#endif /* !NO_FLOATING_POINT */
+		case 'n':
+			if (flags & INTMAXT)
+				addtype(&types, TP_INTMAXT);
+			else if (flags & PTRDIFFT)
+				addtype(&types, TP_PTRDIFFT);
+			else if (flags & SIZET)
+				addtype(&types, TP_SIZET);
+			else if (flags & LLONGINT)
+				addtype(&types, TP_LLONG);
+			else if (flags & LONGINT)
+				addtype(&types, TP_LONG);
+			else if (flags & SHORTINT)
+				addtype(&types, TP_SHORT);
+			else if (flags & CHARINT)
+				addtype(&types, TP_SCHAR);
+			else
+				addtype(&types, TP_INT);
+			continue;	/* no output */
+		case 'O':
+			flags |= LONGINT;
+			/*FALLTHROUGH*/
+		case 'o':
+			adduarg(&types, flags);
+			break;
+		case 'p':
+			addtype(&types, TP_VOID);
+			break;
+		case 'S':
+			flags |= LONGINT;
+			/*FALLTHROUGH*/
+		case 's':
+			if (flags & LONGINT)
+				addtype(&types, TP_WCHAR);
+			else
+				addtype(&types, TP_CHAR);
+			break;
+		case 'U':
+			flags |= LONGINT;
+			/*FALLTHROUGH*/
+		case 'u':
+		case 'X':
+		case 'x':
+			adduarg(&types, flags);
+			break;
+		default:	/* "%?" prints ?, unless ? is NUL */
+			if (ch == '\0')
+				goto done;
+			break;
+		}
+	}
+done:
+	/*
+	 * Build the argument table.
+	 */
+	if (types.tablemax >= STATIC_ARG_TBL_SIZE) {
+		*argtable = (union arg *)
+		    malloc (sizeof (union arg) * (types.tablemax + 1));
+	}
+
+	(*argtable) [0].intarg = 0;
+	for (n = 1; n <= types.tablemax; n++) {
+		switch (types.table[n]) {
+		    case T_UNUSED: /* whoops! */
+			(*argtable) [n].intarg = va_arg (ap, int);
+			break;
+		    case TP_SCHAR:
+			(*argtable) [n].pschararg = va_arg (ap, signed char *);
+			break;
+		    case TP_SHORT:
+			(*argtable) [n].pshortarg = va_arg (ap, short *);
+			break;
+		    case T_INT:
+			(*argtable) [n].intarg = va_arg (ap, int);
+			break;
+		    case T_U_INT:
+			(*argtable) [n].uintarg = va_arg (ap, unsigned int);
+			break;
+		    case TP_INT:
+			(*argtable) [n].pintarg = va_arg (ap, int *);
+			break;
+		    case T_LONG:
+			(*argtable) [n].longarg = va_arg (ap, long);
+			break;
+		    case T_U_LONG:
+			(*argtable) [n].ulongarg = va_arg (ap, unsigned long);
+			break;
+		    case TP_LONG:
+			(*argtable) [n].plongarg = va_arg (ap, long *);
+			break;
+		    case T_LLONG:
+			(*argtable) [n].longlongarg = va_arg (ap, long long);
+			break;
+		    case T_U_LLONG:
+			(*argtable) [n].ulonglongarg = va_arg (ap, unsigned long long);
+			break;
+		    case TP_LLONG:
+			(*argtable) [n].plonglongarg = va_arg (ap, long long *);
+			break;
+		    case T_PTRDIFFT:
+			(*argtable) [n].ptrdiffarg = va_arg (ap, ptrdiff_t);
+			break;
+		    case TP_PTRDIFFT:
+			(*argtable) [n].pptrdiffarg = va_arg (ap, ptrdiff_t *);
+			break;
+		    case T_SIZET:
+			(*argtable) [n].sizearg = va_arg (ap, size_t);
+			break;
+		    case TP_SIZET:
+			(*argtable) [n].psizearg = va_arg (ap, size_t *);
+			break;
+		    case T_INTMAXT:
+			(*argtable) [n].intmaxarg = va_arg (ap, intmax_t);
+			break;
+		    case T_UINTMAXT:
+			(*argtable) [n].uintmaxarg = va_arg (ap, uintmax_t);
+			break;
+		    case TP_INTMAXT:
+			(*argtable) [n].pintmaxarg = va_arg (ap, intmax_t *);
+			break;
+		    case T_DOUBLE:
+#ifndef NO_FLOATING_POINT
+			(*argtable) [n].doublearg = va_arg (ap, double);
+#endif
+			break;
+		    case T_LONG_DOUBLE:
+#ifndef NO_FLOATING_POINT
+			(*argtable) [n].longdoublearg = va_arg (ap, long double);
+#endif
+			break;
+		    case TP_CHAR:
+			(*argtable) [n].pchararg = va_arg (ap, char *);
+			break;
+		    case TP_VOID:
+			(*argtable) [n].pvoidarg = va_arg (ap, void *);
+			break;
+		    case T_WINT:
+			(*argtable) [n].wintarg = va_arg (ap, wint_t);
+			break;
+		    case TP_WCHAR:
+			(*argtable) [n].pwchararg = va_arg (ap, wchar_t *);
+			break;
+		}
+	}
+
+	freetypes(&types);
+}
+
+/*
+ * Increase the size of the type table.
+ */
+static void
+__grow_type_table(struct typetable *types)
+{
+	enum typeid *const oldtable = types->table;
+	const int oldsize = types->tablesize;
+	enum typeid *newtable;
+	int n, newsize = oldsize * 2;
+
+	if (newsize < types->nextarg + 1)
+		newsize = types->nextarg + 1;
+	if (oldsize == STATIC_ARG_TBL_SIZE) {
+		if ((newtable = malloc(newsize * sizeof(enum typeid))) == NULL)
+			abort();			/* XXX handle better */
+		bcopy(oldtable, newtable, oldsize * sizeof(enum typeid));
+	} else {
+		newtable = reallocf(oldtable, newsize * sizeof(enum typeid));
+		if (newtable == NULL)
+			abort();			/* XXX handle better */
+	}
+	for (n = oldsize; n < newsize; n++)
+		newtable[n] = T_UNUSED;
+
+	types->table = newtable;
+	types->tablesize = newsize;
+}