928 lines
18 KiB
C
928 lines
18 KiB
C
/* Demangler for GNU C++
|
|
Copyright (C) 1989, 1992 Free Software Foundation, Inc.
|
|
written by James Clark (jjc@jclark.uucp)
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2, or (at your option)
|
|
any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
|
|
|
/* This is for g++ 1.36.1 (November 6 version). It will probably
|
|
require changes for any other version. */
|
|
|
|
/* This file exports one function
|
|
|
|
char *cplus_demangle (const char *name)
|
|
|
|
If `name' is a mangled function name produced by g++, then
|
|
a pointer to a malloced string giving a C++ representation
|
|
of the name will be returned; otherwise NULL will be returned.
|
|
It is the caller's responsibility to free the string which
|
|
is returned.
|
|
|
|
For example,
|
|
|
|
cplus_demangle ("_foo__1Ai")
|
|
|
|
returns
|
|
|
|
"A::foo(int)"
|
|
|
|
This file imports xmalloc and xrealloc, which are like malloc and
|
|
realloc except that they generate a fatal error if there is no
|
|
available memory. */
|
|
|
|
/* #define nounderscore 1 /* define this is names don't start with _ */
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <ctype.h>
|
|
|
|
#if !defined(sequent) && !defined(NeXT)
|
|
#include <memory.h>
|
|
#else
|
|
#define memcpy(s1, s2, n) strncpy(s1, s2, n)
|
|
#define memcmp(s1, s2, n) strncmp(s1, s2, n)
|
|
#define strchr(s, c) index(s, c)
|
|
#endif
|
|
|
|
#if __STDC__ != 1
|
|
#define const
|
|
#endif
|
|
|
|
#if __STDC__ == 1
|
|
extern char *cplus_demangle (const char *type);
|
|
#else
|
|
extern char *cplus_demangle ();
|
|
#endif
|
|
|
|
#if __STDC__ == 1
|
|
extern char *xmalloc (int);
|
|
extern char *xrealloc (char *, int);
|
|
#else
|
|
extern char *xmalloc ();
|
|
extern char *xrealloc ();
|
|
#endif
|
|
|
|
static char **typevec = 0;
|
|
static int ntypes = 0;
|
|
static int typevec_size = 0;
|
|
|
|
static struct {
|
|
const char *in;
|
|
const char *out;
|
|
} optable[] = {
|
|
"new", " new",
|
|
"delete", " delete",
|
|
"ne", "!=",
|
|
"eq", "==",
|
|
"ge", ">=",
|
|
"gt", ">",
|
|
"le", "<=",
|
|
"lt", "<",
|
|
"plus", "+",
|
|
"minus", "-",
|
|
"mult", "*",
|
|
"negate", "-",
|
|
"trunc_mod", "%",
|
|
"trunc_div", "/",
|
|
"truth_andif", "&&",
|
|
"truth_orif", "||",
|
|
"postincrement", "++",
|
|
"postdecrement", "--",
|
|
"bit_ior", "|",
|
|
"bit_xor", "^",
|
|
"bit_and", "&",
|
|
"bit_not", "~",
|
|
"call", "()",
|
|
"cond", "?:",
|
|
"alshift", "<<",
|
|
"arshift", ">>",
|
|
"component", "->",
|
|
"nop", "", /* for operator= */
|
|
};
|
|
|
|
/* Beware: these aren't '\0' terminated. */
|
|
|
|
typedef struct {
|
|
char *b; /* pointer to start of string */
|
|
char *p; /* pointer after last character */
|
|
char *e; /* pointer after end of allocated space */
|
|
} string;
|
|
|
|
#if __STDC__ == 1
|
|
static void string_need (string *s, int n);
|
|
static void string_delete (string *s);
|
|
static void string_init (string *s);
|
|
static void string_clear (string *s);
|
|
static int string_empty (string *s);
|
|
static void string_append (string *p, const char *s);
|
|
static void string_appends (string *p, string *s);
|
|
static void string_appendn (string *p, const char *s, int n);
|
|
static void string_prepend (string *p, const char *s);
|
|
#if 0
|
|
static void string_prepends (string *p, string *s);
|
|
#endif
|
|
static void string_prependn (string *p, const char *s, int n);
|
|
static int get_count (const char **type, int *count);
|
|
static int do_args (const char **type, string *decl);
|
|
static int do_type (const char **type, string *result);
|
|
static int do_arg (const char **type, string *result);
|
|
static int do_args (const char **type, string *decl);
|
|
static void munge_function_name (string *name);
|
|
#else
|
|
static void string_need ();
|
|
static void string_delete ();
|
|
static void string_init ();
|
|
static void string_clear ();
|
|
static int string_empty ();
|
|
static void string_append ();
|
|
static void string_appends ();
|
|
static void string_appendn ();
|
|
static void string_prepend ();
|
|
static void string_prepends ();
|
|
static void string_prependn ();
|
|
static int get_count ();
|
|
static int do_args ();
|
|
static int do_type ();
|
|
static int do_arg ();
|
|
static int do_args ();
|
|
static void munge_function_name ();
|
|
#endif
|
|
|
|
char *
|
|
cplus_demangle (type)
|
|
const char *type;
|
|
{
|
|
string decl;
|
|
int n;
|
|
int success = 0;
|
|
int constructor = 0;
|
|
int const_flag = 0;
|
|
int i;
|
|
const char *p;
|
|
|
|
if (type == NULL || *type == '\0')
|
|
return NULL;
|
|
#ifndef nounderscore
|
|
if (*type++ != '_')
|
|
return NULL;
|
|
#endif
|
|
p = type;
|
|
while (*p != '\0' && !(*p == '_' && p[1] == '_'))
|
|
p++;
|
|
if (*p == '\0')
|
|
{
|
|
/* destructor */
|
|
if (type[0] == '_' && type[1] == '$' && type[2] == '_')
|
|
{
|
|
int n = (strlen (type) - 3)*2 + 3 + 2 + 1;
|
|
char *tem = (char *) xmalloc (n);
|
|
strcpy (tem, type + 3);
|
|
strcat (tem, "::~");
|
|
strcat (tem, type + 3);
|
|
strcat (tem, "()");
|
|
return tem;
|
|
}
|
|
/* static data member */
|
|
if (*type != '_' && (p = strchr (type, '$')) != '\0')
|
|
{
|
|
int n = strlen (type) + 2;
|
|
char *tem = (char *) xmalloc (n);
|
|
memcpy (tem, type, p - type);
|
|
strcpy (tem + (p - type), "::");
|
|
strcpy (tem + (p - type) + 2, p + 1);
|
|
return tem;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
string_init (&decl);
|
|
|
|
if (p == type)
|
|
{
|
|
if (!isdigit (p[2]))
|
|
{
|
|
string_delete (&decl);
|
|
return NULL;
|
|
}
|
|
constructor = 1;
|
|
}
|
|
else
|
|
{
|
|
string_appendn (&decl, type, p - type);
|
|
munge_function_name (&decl);
|
|
}
|
|
p += 2;
|
|
|
|
switch (*p)
|
|
{
|
|
case 'C':
|
|
/* a const member function */
|
|
if (!isdigit (p[1]))
|
|
{
|
|
string_delete (&decl);
|
|
return NULL;
|
|
}
|
|
p += 1;
|
|
const_flag = 1;
|
|
/* fall through */
|
|
case '0':
|
|
case '1':
|
|
case '2':
|
|
case '3':
|
|
case '4':
|
|
case '5':
|
|
case '6':
|
|
case '7':
|
|
case '8':
|
|
case '9':
|
|
n = 0;
|
|
do
|
|
{
|
|
n *= 10;
|
|
n += *p - '0';
|
|
p += 1;
|
|
}
|
|
while (isdigit (*p));
|
|
if (strlen (p) < n)
|
|
{
|
|
string_delete (&decl);
|
|
return NULL;
|
|
}
|
|
if (constructor)
|
|
{
|
|
string_appendn (&decl, p, n);
|
|
string_append (&decl, "::");
|
|
string_appendn (&decl, p, n);
|
|
}
|
|
else
|
|
{
|
|
string_prepend (&decl, "::");
|
|
string_prependn (&decl, p, n);
|
|
}
|
|
p += n;
|
|
success = do_args (&p, &decl);
|
|
if (const_flag)
|
|
string_append (&decl, " const");
|
|
break;
|
|
case 'F':
|
|
p += 1;
|
|
success = do_args (&p, &decl);
|
|
break;
|
|
}
|
|
|
|
for (i = 0; i < ntypes; i++)
|
|
if (typevec[i] != NULL)
|
|
free (typevec[i]);
|
|
ntypes = 0;
|
|
if (typevec != NULL)
|
|
{
|
|
free ((char *)typevec);
|
|
typevec = NULL;
|
|
typevec_size = 0;
|
|
}
|
|
|
|
if (success)
|
|
{
|
|
string_appendn (&decl, "", 1);
|
|
return decl.b;
|
|
}
|
|
else
|
|
{
|
|
string_delete (&decl);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static int
|
|
get_count (type, count)
|
|
const char **type;
|
|
int *count;
|
|
{
|
|
if (!isdigit (**type))
|
|
return 0;
|
|
*count = **type - '0';
|
|
*type += 1;
|
|
/* see flush_repeats in cplus-method.c */
|
|
if (isdigit (**type))
|
|
{
|
|
const char *p = *type;
|
|
int n = *count;
|
|
do
|
|
{
|
|
n *= 10;
|
|
n += *p - '0';
|
|
p += 1;
|
|
}
|
|
while (isdigit (*p));
|
|
if (*p == '_')
|
|
{
|
|
*type = p + 1;
|
|
*count = n;
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/* result will be initialised here; it will be freed on failure */
|
|
|
|
static int
|
|
do_type (type, result)
|
|
const char **type;
|
|
string *result;
|
|
{
|
|
int n;
|
|
int done;
|
|
int non_empty;
|
|
int success;
|
|
string decl;
|
|
const char *remembered_type;
|
|
|
|
string_init (&decl);
|
|
string_init (result);
|
|
|
|
done = 0;
|
|
success = 1;
|
|
while (success && !done)
|
|
{
|
|
int member;
|
|
switch (**type)
|
|
{
|
|
case 'P':
|
|
*type += 1;
|
|
string_prepend (&decl, "*");
|
|
break;
|
|
|
|
case 'R':
|
|
*type += 1;
|
|
string_prepend (&decl, "&");
|
|
break;
|
|
|
|
case 'T':
|
|
*type += 1;
|
|
if (!get_count (type, &n) || n >= ntypes)
|
|
success = 0;
|
|
else
|
|
{
|
|
remembered_type = typevec[n];
|
|
type = &remembered_type;
|
|
}
|
|
break;
|
|
|
|
case 'F':
|
|
*type += 1;
|
|
if (!string_empty (&decl) && decl.b[0] == '*')
|
|
{
|
|
string_prepend (&decl, "(");
|
|
string_append (&decl, ")");
|
|
}
|
|
if (!do_args (type, &decl) || **type != '_')
|
|
success = 0;
|
|
else
|
|
*type += 1;
|
|
break;
|
|
|
|
case 'M':
|
|
case 'O':
|
|
{
|
|
int constp = 0;
|
|
int volatilep = 0;
|
|
|
|
member = **type == 'M';
|
|
*type += 1;
|
|
if (!isdigit (**type))
|
|
{
|
|
success = 0;
|
|
break;
|
|
}
|
|
n = 0;
|
|
do
|
|
{
|
|
n *= 10;
|
|
n += **type - '0';
|
|
*type += 1;
|
|
}
|
|
while (isdigit (**type));
|
|
if (strlen (*type) < n)
|
|
{
|
|
success = 0;
|
|
break;
|
|
}
|
|
string_append (&decl, ")");
|
|
string_prepend (&decl, "::");
|
|
string_prependn (&decl, *type, n);
|
|
string_prepend (&decl, "(");
|
|
*type += n;
|
|
if (member)
|
|
{
|
|
if (**type == 'C')
|
|
{
|
|
*type += 1;
|
|
constp = 1;
|
|
}
|
|
if (**type == 'V')
|
|
{
|
|
*type += 1;
|
|
volatilep = 1;
|
|
}
|
|
if (*(*type)++ != 'F')
|
|
{
|
|
success = 0;
|
|
break;
|
|
}
|
|
}
|
|
if ((member && !do_args (type, &decl)) || **type != '_')
|
|
{
|
|
success = 0;
|
|
break;
|
|
}
|
|
*type += 1;
|
|
if (constp)
|
|
{
|
|
if (non_empty)
|
|
string_append (&decl, " ");
|
|
else
|
|
non_empty = 1;
|
|
string_append (&decl, "const");
|
|
}
|
|
if (volatilep)
|
|
{
|
|
if (non_empty)
|
|
string_append (&decl, " ");
|
|
else
|
|
non_empty = 1;
|
|
string_append (&decl, "volatilep");
|
|
}
|
|
break;
|
|
}
|
|
|
|
case 'C':
|
|
if ((*type)[1] == 'P')
|
|
{
|
|
*type += 1;
|
|
if (!string_empty (&decl))
|
|
string_prepend (&decl, " ");
|
|
string_prepend (&decl, "const");
|
|
break;
|
|
}
|
|
|
|
/* fall through */
|
|
default:
|
|
done = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
done = 0;
|
|
non_empty = 0;
|
|
while (success && !done)
|
|
{
|
|
switch (**type)
|
|
{
|
|
case 'C':
|
|
*type += 1;
|
|
if (non_empty)
|
|
string_append (result, " ");
|
|
else
|
|
non_empty = 1;
|
|
string_append (result, "const");
|
|
break;
|
|
case 'U':
|
|
*type += 1;
|
|
if (non_empty)
|
|
string_append (result, " ");
|
|
else
|
|
non_empty = 1;
|
|
string_append (result, "unsigned");
|
|
break;
|
|
case 'V':
|
|
*type += 1;
|
|
if (non_empty)
|
|
string_append (result, " ");
|
|
else
|
|
non_empty = 1;
|
|
string_append (result, "volatile");
|
|
break;
|
|
default:
|
|
done = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (success)
|
|
switch (**type)
|
|
{
|
|
case '\0':
|
|
case '_':
|
|
break;
|
|
case 'v':
|
|
*type += 1;
|
|
if (non_empty)
|
|
string_append (result, " ");
|
|
string_append (result, "void");
|
|
break;
|
|
case 'l':
|
|
*type += 1;
|
|
if (non_empty)
|
|
string_append (result, " ");
|
|
string_append (result, "long");
|
|
break;
|
|
case 'i':
|
|
*type += 1;
|
|
if (non_empty)
|
|
string_append (result, " ");
|
|
string_append (result, "int");
|
|
break;
|
|
case 's':
|
|
*type += 1;
|
|
if (non_empty)
|
|
string_append (result, " ");
|
|
string_append (result, "short");
|
|
break;
|
|
case 'c':
|
|
*type += 1;
|
|
if (non_empty)
|
|
string_append (result, " ");
|
|
string_append (result, "char");
|
|
break;
|
|
case 'r':
|
|
*type += 1;
|
|
if (non_empty)
|
|
string_append (result, " ");
|
|
string_append (result, "long double");
|
|
break;
|
|
case 'd':
|
|
*type += 1;
|
|
if (non_empty)
|
|
string_append (result, " ");
|
|
string_append (result, "double");
|
|
break;
|
|
case 'f':
|
|
*type += 1;
|
|
if (non_empty)
|
|
string_append (result, " ");
|
|
string_append (result, "float");
|
|
break;
|
|
case 'G':
|
|
*type += 1;
|
|
if (!isdigit (**type))
|
|
{
|
|
success = 0;
|
|
break;
|
|
}
|
|
/* fall through */
|
|
case '0':
|
|
case '1':
|
|
case '2':
|
|
case '3':
|
|
case '4':
|
|
case '5':
|
|
case '6':
|
|
case '7':
|
|
case '8':
|
|
case '9':
|
|
n = 0;
|
|
do
|
|
{
|
|
n *= 10;
|
|
n += **type - '0';
|
|
*type += 1;
|
|
}
|
|
while (isdigit (**type));
|
|
if (strlen (*type) < n)
|
|
{
|
|
success = 0;
|
|
break;
|
|
}
|
|
if (non_empty)
|
|
string_append (result, " ");
|
|
string_appendn (result, *type, n);
|
|
*type += n;
|
|
break;
|
|
default:
|
|
success = 0;
|
|
break;
|
|
}
|
|
|
|
if (success)
|
|
{
|
|
if (!string_empty (&decl))
|
|
{
|
|
string_append (result, " ");
|
|
string_appends (result, &decl);
|
|
}
|
|
string_delete (&decl);
|
|
return 1;
|
|
}
|
|
else
|
|
{
|
|
string_delete (&decl);
|
|
string_delete (result);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/* `result' will be initialised in do_type; it will be freed on failure */
|
|
|
|
static int
|
|
do_arg (type, result)
|
|
const char **type;
|
|
string *result;
|
|
{
|
|
char *tem;
|
|
int len;
|
|
const char *start;
|
|
const char *end;
|
|
|
|
start = *type;
|
|
if (!do_type (type, result))
|
|
return 0;
|
|
end = *type;
|
|
if (ntypes >= typevec_size)
|
|
{
|
|
if (typevec_size == 0)
|
|
{
|
|
typevec_size = 3;
|
|
typevec = (char **) xmalloc (sizeof (char*)*typevec_size);
|
|
}
|
|
else
|
|
{
|
|
typevec_size *= 2;
|
|
typevec = (char **) xrealloc ((char *)typevec, sizeof (char*)*typevec_size);
|
|
}
|
|
}
|
|
len = end - start;
|
|
tem = (char *) xmalloc (len + 1);
|
|
memcpy (tem, start, len);
|
|
tem[len] = '\0';
|
|
typevec[ntypes++] = tem;
|
|
return 1;
|
|
}
|
|
|
|
/* `decl' must be already initialised, usually non-empty;
|
|
it won't be freed on failure */
|
|
|
|
static int
|
|
do_args (type, decl)
|
|
const char **type;
|
|
string *decl;
|
|
{
|
|
string arg;
|
|
int need_comma = 0;
|
|
|
|
string_append (decl, "(");
|
|
|
|
while (**type != '_' && **type != '\0' && **type != 'e' && **type != 'v')
|
|
{
|
|
if (**type == 'N')
|
|
{
|
|
int r;
|
|
int t;
|
|
*type += 1;
|
|
if (!get_count (type, &r) || !get_count (type, &t) || t >= ntypes)
|
|
return 0;
|
|
while (--r >= 0)
|
|
{
|
|
const char *tem = typevec[t];
|
|
if (need_comma)
|
|
string_append (decl, ", ");
|
|
if (!do_arg (&tem, &arg))
|
|
return 0;
|
|
string_appends (decl, &arg);
|
|
string_delete (&arg);
|
|
need_comma = 1;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (need_comma)
|
|
string_append (decl, ", ");
|
|
if (!do_arg (type, &arg))
|
|
return 0;
|
|
string_appends (decl, &arg);
|
|
string_delete (&arg);
|
|
need_comma = 1;
|
|
}
|
|
}
|
|
|
|
if (**type == 'v')
|
|
*type += 1;
|
|
else if (**type == 'e')
|
|
{
|
|
*type += 1;
|
|
if (need_comma)
|
|
string_append (decl, ",");
|
|
string_append (decl, "...");
|
|
}
|
|
|
|
string_append (decl, ")");
|
|
return 1;
|
|
}
|
|
|
|
static void
|
|
munge_function_name (name)
|
|
string *name;
|
|
{
|
|
if (!string_empty (name) && name->p - name->b >= 3
|
|
&& name->b[0] == 'o' && name->b[1] == 'p' && name->b[2] == '$')
|
|
{
|
|
int i;
|
|
/* see if it's an assignment expression */
|
|
if (name->p - name->b >= 10 /* op$assign_ */
|
|
&& memcmp (name->b + 3, "assign_", 7) == 0)
|
|
{
|
|
for (i = 0; i < sizeof (optable)/sizeof (optable[0]); i++)
|
|
{
|
|
int len = name->p - name->b - 10;
|
|
if (strlen (optable[i].in) == len
|
|
&& memcmp (optable[i].in, name->b + 10, len) == 0)
|
|
{
|
|
string_clear (name);
|
|
string_append (name, "operator");
|
|
string_append (name, optable[i].out);
|
|
string_append (name, "=");
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (i = 0; i < sizeof (optable)/sizeof (optable[0]); i++)
|
|
{
|
|
int len = name->p - name->b - 3;
|
|
if (strlen (optable[i].in) == len
|
|
&& memcmp (optable[i].in, name->b + 3, len) == 0)
|
|
{
|
|
string_clear (name);
|
|
string_append (name, "operator");
|
|
string_append (name, optable[i].out);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
else if (!string_empty (name) && name->p - name->b >= 5
|
|
&& memcmp (name->b, "type$", 5) == 0)
|
|
{
|
|
/* type conversion operator */
|
|
string type;
|
|
const char *tem = name->b + 5;
|
|
if (do_type (&tem, &type))
|
|
{
|
|
string_clear (name);
|
|
string_append (name, "operator ");
|
|
string_appends (name, &type);
|
|
string_delete (&type);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* a mini string-handling package */
|
|
|
|
static void
|
|
string_need (s, n)
|
|
string *s;
|
|
int n;
|
|
{
|
|
if (s->b == NULL)
|
|
{
|
|
if (n < 32)
|
|
n = 32;
|
|
s->p = s->b = (char *) xmalloc (n);
|
|
s->e = s->b + n;
|
|
}
|
|
else if (s->e - s->p < n)
|
|
{
|
|
int tem = s->p - s->b;
|
|
n += tem;
|
|
n *= 2;
|
|
s->b = (char *) xrealloc (s->b, n);
|
|
s->p = s->b + tem;
|
|
s->e = s->b + n;
|
|
}
|
|
}
|
|
|
|
static void
|
|
string_delete (s)
|
|
string *s;
|
|
{
|
|
if (s->b != NULL)
|
|
{
|
|
free (s->b);
|
|
s->b = s->e = s->p = NULL;
|
|
}
|
|
}
|
|
|
|
static void
|
|
string_init (s)
|
|
string *s;
|
|
{
|
|
s->b = s->p = s->e = NULL;
|
|
}
|
|
|
|
static void
|
|
string_clear (s)
|
|
string *s;
|
|
{
|
|
s->p = s->b;
|
|
}
|
|
|
|
static int
|
|
string_empty (s)
|
|
string *s;
|
|
{
|
|
return s->b == s->p;
|
|
}
|
|
|
|
static void
|
|
string_append (p, s)
|
|
string *p;
|
|
const char *s;
|
|
{
|
|
int n;
|
|
if (s == NULL || *s == '\0')
|
|
return;
|
|
n = strlen (s);
|
|
string_need (p, n);
|
|
memcpy (p->p, s, n);
|
|
p->p += n;
|
|
}
|
|
|
|
static void
|
|
string_appends (p, s)
|
|
string *p, *s;
|
|
{
|
|
int n;
|
|
if (s->b == s->p)
|
|
return;
|
|
n = s->p - s->b;
|
|
string_need (p, n);
|
|
memcpy (p->p, s->b, n);
|
|
p->p += n;
|
|
}
|
|
|
|
static void
|
|
string_appendn (p, s, n)
|
|
string *p;
|
|
const char *s;
|
|
int n;
|
|
{
|
|
if (n == 0)
|
|
return;
|
|
string_need (p, n);
|
|
memcpy (p->p, s, n);
|
|
p->p += n;
|
|
}
|
|
|
|
static void
|
|
string_prepend (p, s)
|
|
string *p;
|
|
const char *s;
|
|
{
|
|
if (s == NULL || *s == '\0')
|
|
return;
|
|
string_prependn (p, s, strlen (s));
|
|
}
|
|
|
|
#if 0
|
|
static void
|
|
string_prepends (p, s)
|
|
string *p, *s;
|
|
{
|
|
if (s->b == s->p)
|
|
return;
|
|
string_prependn (p, s->b, s->p - s->b);
|
|
}
|
|
#endif
|
|
|
|
static void
|
|
string_prependn (p, s, n)
|
|
string *p;
|
|
const char *s;
|
|
int n;
|
|
{
|
|
char *q;
|
|
|
|
if (n == 0)
|
|
return;
|
|
string_need (p, n);
|
|
for (q = p->p - 1; q >= p->b; q--)
|
|
q[n] = q[0];
|
|
memcpy (p->b, s, n);
|
|
p->p += n;
|
|
}
|
|
|
|
/* end of cplus-dem.c */
|