-/* macro.c - macro support for gas and gasp
- Copyright (C) 1994, 1995 Free Software Foundation, Inc.
+/* macro.c - macro support for gas
+ Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
+ Free Software Foundation, Inc.
Written by Steve and Judy Chamberlain of Cygnus Support,
sac@cygnus.com
You should have received a copy of the GNU General Public License
along with GAS; see the file COPYING. If not, write to the Free
Software Foundation, 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA. */
+ 02111-1307, USA. */
#include "config.h"
+
+#ifndef __GNUC__
+# if HAVE_ALLOCA_H
+# include <alloca.h>
+# else
+# ifdef _AIX
+/* Indented so that pre-ansi C compilers will ignore it, rather than
+ choke on it. Some versions of AIX require this to be the first
+ thing in the file. */
+ #pragma alloca
+# else
+# ifndef alloca /* predefined by HP cc +Olibcalls */
+# if !defined (__STDC__) && !defined (__hpux)
+extern char *alloca ();
+# else
+extern void *alloca ();
+# endif /* __STDC__, __hpux */
+# endif /* alloca */
+# endif /* _AIX */
+# endif /* HAVE_ALLOCA_H */
+#endif /* __GNUC__ */
+
#include <stdio.h>
-#include <ctype.h>
+#ifdef HAVE_STRING_H
+#include <string.h>
+#else
+#include <strings.h>
+#endif
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#include "libiberty.h"
+#include "safe-ctype.h"
#include "sb.h"
#include "hash.h"
#include "macro.h"
+#include "asintl.h"
+
/* The routines in this file handle macro definition and expansion.
- They are called by both gasp and gas. */
-
-/* Structures used to store macros.
-
- Each macro knows its name and included text. It gets built with a
- list of formal arguments, and also keeps a hash table which points
- into the list to speed up formal search. Each formal knows its
- name and its default value. Each time the macro is expanded, the
- formals get the actual values attatched to them. */
-
-/* describe the formal arguments to a macro */
-
-typedef struct formal_struct
- {
- struct formal_struct *next; /* next formal in list */
- sb name; /* name of the formal */
- sb def; /* the default value */
- sb actual; /* the actual argument (changed on each expansion) */
- int index; /* the index of the formal 0..formal_count-1 */
- }
-formal_entry;
-
-/* Other values found in the index field of a formal_entry. */
-#define QUAL_INDEX (-1)
-#define NARG_INDEX (-2)
-#define LOCAL_INDEX (-3)
-
-/* describe the macro. */
-
-typedef struct macro_struct
- {
- sb sub; /* substitution text. */
- int formal_count; /* number of formal args. */
- formal_entry *formals; /* pointer to list of formal_structs */
- struct hash_control *formal_hash; /* hash table of formals. */
- }
-macro_entry;
+ They are called by gas. */
/* Internal functions. */
static int sub_actual
PARAMS ((int, sb *, sb *, struct hash_control *, int, sb *, int));
static const char *macro_expand_body
- PARAMS ((sb *, sb *, formal_entry *, struct hash_control *, int, int));
-static const char *macro_expand PARAMS ((int, sb *, macro_entry *, sb *, int));
+ PARAMS ((sb *, sb *, formal_entry *, struct hash_control *, int));
+static const char *macro_expand PARAMS ((int, sb *, macro_entry *, sb *));
#define ISWHITE(x) ((x) == ' ' || (x) == '\t')
#define ISSEP(x) \
((x) == ' ' || (x) == '\t' || (x) == ',' || (x) == '"' || (x) == ';' \
- || (x) == '<' || (x) == '>' || (x) == ')' || (x) == '(')
+ || (x) == ')' || (x) == '(' \
+ || ((macro_alternate || macro_mri) && ((x) == '<' || (x) == '>')))
#define ISBASE(x) \
((x) == 'b' || (x) == 'B' \
/* The macro hash table. */
-static struct hash_control *macro_hash;
+struct hash_control *macro_hash;
/* Whether any macros have been defined. */
int macro_defined;
-/* Whether we are in GASP alternate mode. */
+/* Whether we are in alternate syntax mode. */
static int macro_alternate;
static int macro_mri;
+/* Whether we should strip '@' characters. */
+
+static int macro_strip_at;
+
/* Function to use to parse an expression. */
static int (*macro_expr) PARAMS ((const char *, int, sb *, int *));
/* Initialize macro processing. */
void
-macro_init (alternate, mri, expr)
+macro_init (alternate, mri, strip_at, expr)
int alternate;
int mri;
+ int strip_at;
int (*expr) PARAMS ((const char *, int, sb *, int *));
{
macro_hash = hash_new ();
macro_defined = 0;
macro_alternate = alternate;
macro_mri = mri;
+ macro_strip_at = strip_at;
macro_expr = expr;
}
+/* Switch in and out of MRI mode on the fly. */
+
+void
+macro_mri_mode (mri)
+ int mri;
+{
+ macro_mri = mri;
+}
+
/* Read input lines till we get to a TO string.
Increase nesting depth if we get a FROM string.
Put the results into sb at PTR.
while (more)
{
- /* Try and find the first pseudo op on the line */
+ /* Try and find the first pseudo op on the line. */
int i = line_start;
if (! macro_alternate && ! macro_mri)
/* With normal syntax we can suck what we want till we get
to the dot. With the alternate, labels have to start in
the first column, since we cant tell what's a label and
- whats a pseudoop */
+ whats a pseudoop. */
- /* Skip leading whitespace */
+ /* Skip leading whitespace. */
while (i < ptr->len && ISWHITE (ptr->ptr[i]))
i++;
- /* Skip over a label */
+ /* Skip over a label. */
while (i < ptr->len
- && (isalnum ((unsigned char) ptr->ptr[i])
+ && (ISALNUM (ptr->ptr[i])
|| ptr->ptr[i] == '_'
|| ptr->ptr[i] == '$'))
i++;
- /* And a colon */
+ /* And a colon. */
if (i < ptr->len
&& ptr->ptr[i] == ':')
i++;
}
- /* Skip trailing whitespace */
+ /* Skip trailing whitespace. */
while (i < ptr->len && ISWHITE (ptr->ptr[i]))
i++;
|| macro_mri))
{
if (ptr->ptr[i] == '.')
- i++;
- if (strncasecmp (ptr->ptr + i, from, from_len) == 0)
+ i++;
+ if (strncasecmp (ptr->ptr + i, from, from_len) == 0
+ && (ptr->len == (i + from_len)
+ || ! ISALNUM (ptr->ptr[i + from_len])))
depth++;
- if (strncasecmp (ptr->ptr + i, to, to_len) == 0)
+ if (strncasecmp (ptr->ptr + i, to, to_len) == 0
+ && (ptr->len == (i + to_len)
+ || ! ISALNUM (ptr->ptr[i + to_len])))
{
depth--;
if (depth == 0)
{
- /* Reset the string to not include the ending rune */
+ /* Reset the string to not include the ending rune. */
ptr->len = line_start;
break;
}
}
}
- /* Add a CR to the end and keep running */
- sb_add_char (ptr, '\n');
+ /* Add the original end-of-line char to the end and keep running. */
+ sb_add_char (ptr, more);
line_start = ptr->len;
more = get_line (ptr);
}
sb *name;
{
if (idx < in->len
- && (isalpha ((unsigned char) in->ptr[idx])
+ && (ISALPHA (in->ptr[idx])
|| in->ptr[idx] == '_'
|| in->ptr[idx] == '$'))
{
sb_add_char (name, in->ptr[idx++]);
while (idx < in->len
- && (isalnum ((unsigned char) in->ptr[idx])
+ && (ISALNUM (in->ptr[idx])
|| in->ptr[idx] == '_'
|| in->ptr[idx] == '$'))
{
sb_add_char (name, in->ptr[idx++]);
}
}
- /* Ignore trailing & */
+ /* Ignore trailing &. */
if (macro_alternate && idx < in->len && in->ptr[idx] == '&')
idx++;
return idx;
idx = sb_skip_white (idx, in);
while (idx < in->len
- && (in->ptr[idx] == '"'
- || in->ptr[idx] == '<'
+ && (in->ptr[idx] == '"'
+ || (in->ptr[idx] == '<' && (macro_alternate || macro_mri))
|| (in->ptr[idx] == '\'' && macro_alternate)))
{
if (in->ptr[idx] == '<')
{
- if (macro_alternate || macro_mri)
+ int nest = 0;
+ idx++;
+ while ((in->ptr[idx] != '>' || nest)
+ && idx < in->len)
{
- int nest = 0;
- idx++;
- while ((in->ptr[idx] != '>' || nest)
- && idx < in->len)
+ if (in->ptr[idx] == '!')
{
- if (in->ptr[idx] == '!')
- {
- idx++ ;
- sb_add_char (acc, in->ptr[idx++]);
- }
- else
- {
- if (in->ptr[idx] == '>')
- nest--;
- if (in->ptr[idx] == '<')
- nest++;
- sb_add_char (acc, in->ptr[idx++]);
- }
+ idx++;
+ sb_add_char (acc, in->ptr[idx++]);
+ }
+ else
+ {
+ if (in->ptr[idx] == '>')
+ nest--;
+ if (in->ptr[idx] == '<')
+ nest++;
+ sb_add_char (acc, in->ptr[idx++]);
}
- idx++;
- }
- else
- {
- int code;
- idx++;
- idx = ((*macro_expr)
- ("character code in string must be absolute expression",
- idx, in, &code));
- sb_add_char (acc, code);
-
-#if 0
- if (in->ptr[idx] != '>')
- ERROR ((stderr, "Missing > for character code.\n"));
-#endif
- idx++;
}
+ idx++;
}
else if (in->ptr[idx] == '"' || in->ptr[idx] == '\'')
{
char tchar = in->ptr[idx];
+ int escaped = 0;
+
idx++;
+
while (idx < in->len)
{
+ if (in->ptr[idx - 1] == '\\')
+ escaped ^= 1;
+ else
+ escaped = 0;
+
if (macro_alternate && in->ptr[idx] == '!')
{
- idx++ ;
- sb_add_char (acc, in->ptr[idx++]);
+ idx ++;
+
+ sb_add_char (acc, in->ptr[idx]);
+
+ idx ++;
+ }
+ else if (escaped && in->ptr[idx] == tchar)
+ {
+ sb_add_char (acc, tchar);
+ idx ++;
}
else
{
if (in->ptr[idx] == tchar)
{
- idx++;
+ idx ++;
+
if (idx >= in->len || in->ptr[idx] != tchar)
break;
}
+
sb_add_char (acc, in->ptr[idx]);
- idx++;
+ idx ++;
}
}
}
}
-
+
return idx;
}
if (idx < in->len)
{
- if (in->len > 2 && in->ptr[idx+1] == '\'' && ISBASE (in->ptr[idx]))
+ if (in->len > idx + 2 && in->ptr[idx + 1] == '\'' && ISBASE (in->ptr[idx]))
{
while (!ISSEP (in->ptr[idx]))
sb_add_char (out, in->ptr[idx++]);
{
int val;
char buf[20];
- /* Turns the next expression into a string */
- idx = (*macro_expr) ("% operator needs absolute expression",
+ /* Turns the next expression into a string. */
+ /* xgettext: no-c-format */
+ idx = (*macro_expr) (_("% operator needs absolute expression"),
idx + 1,
in,
&val);
- sprintf(buf, "%d", val);
+ sprintf (buf, "%d", val);
sb_add_string (out, buf);
}
else if (in->ptr[idx] == '"'
- || in->ptr[idx] == '<'
+ || (in->ptr[idx] == '<' && (macro_alternate || macro_mri))
|| (macro_alternate && in->ptr[idx] == '\''))
{
- if (macro_alternate && expand)
+ if (macro_alternate
+ && ! macro_strip_at
+ && expand)
{
- /* Keep the quotes */
- sb_add_char (out, '\"');
+ /* Keep the quotes. */
+ sb_add_char (out, '\"');
idx = getstring (idx, in, out);
- sb_add_char (out, '\"');
+ sb_add_char (out, '\"');
}
else
{
idx = getstring (idx, in, out);
}
}
- else
+ else
{
- while (idx < in->len
+ while (idx < in->len
&& (in->ptr[idx] == '"'
|| in->ptr[idx] == '\''
- || pretend_quoted
+ || pretend_quoted
|| (in->ptr[idx] != ' '
&& in->ptr[idx] != '\t'
&& in->ptr[idx] != ','
- && in->ptr[idx] != '<')))
+ && (in->ptr[idx] != '<'
+ || (! macro_alternate && ! macro_mri)))))
{
- if (in->ptr[idx] == '"'
+ if (in->ptr[idx] == '"'
|| in->ptr[idx] == '\'')
{
char tchar = in->ptr[idx];
sb_add_char (out, in->ptr[idx++]);
while (idx < in->len
&& in->ptr[idx] != tchar)
- sb_add_char (out, in->ptr[idx++]);
+ sb_add_char (out, in->ptr[idx++]);
if (idx == in->len)
- return idx;
+ return idx;
}
sb_add_char (out, in->ptr[idx++]);
}
idx = sb_skip_white (idx, in);
if (formal->name.len)
{
- /* This is a formal */
+ /* This is a formal. */
if (idx < in->len && in->ptr[idx] == '=')
{
- /* Got a default */
+ /* Got a default. */
idx = get_any_string (idx + 1, in, &formal->def, 1, 0);
}
}
- /* Add to macro's hash table */
+ /* Add to macro's hash table. */
hash_jam (macro->formal_hash, sb_terminate (&formal->name), formal);
formal->index = macro->formal_count;
if (macro_mri)
{
formal_entry *formal;
+ const char *name;
/* Add a special NARG formal, which macro_expand will set to the
number of arguments. */
sb_new (&formal->def);
sb_new (&formal->actual);
- sb_add_string (&formal->name, "NARG");
+ /* The same MRI assemblers which treat '@' characters also use
+ the name $NARG. At least until we find an exception. */
+ if (macro_strip_at)
+ name = "$NARG";
+ else
+ name = "NARG";
+
+ sb_add_string (&formal->name, name);
- /* Add to macro's hash table */
- hash_jam (macro->formal_hash, "NARG", formal);
+ /* Add to macro's hash table. */
+ hash_jam (macro->formal_hash, name, formal);
formal->index = NARG_INDEX;
*p = formal;
}
/* Define a new macro. Returns NULL on success, otherwise returns an
- error message. */
+ error message. If NAMEP is not NULL, *NAMEP is set to the name of
+ the macro which was defined. */
const char *
-define_macro (idx, in, label, get_line)
+define_macro (idx, in, label, get_line, namep)
int idx;
sb *in;
sb *label;
int (*get_line) PARAMS ((sb *));
+ const char **namep;
{
macro_entry *macro;
sb name;
+ const char *namestr;
macro = (macro_entry *) xmalloc (sizeof (macro_entry));
sb_new (¯o->sub);
idx = sb_skip_white (idx, in);
if (! buffer_and_nest ("MACRO", "ENDM", ¯o->sub, get_line))
- return "unexpected end of file in macro definition";
+ return _("unexpected end of file in macro definition");
if (label != NULL && label->len != 0)
{
sb_add_sb (&name, label);
- if (in->ptr[idx] == '(')
+ if (idx < in->len && in->ptr[idx] == '(')
{
- /* It's the label: MACRO (formals,...) sort */
+ /* It's the label: MACRO (formals,...) sort */
idx = do_formals (macro, idx + 1, in);
if (in->ptr[idx] != ')')
- return "missing ) after formals";
+ return _("missing ) after formals");
}
else
{
- /* It's the label: MACRO formals,... sort */
+ /* It's the label: MACRO formals,... sort */
idx = do_formals (macro, idx, in);
}
}
else
{
idx = get_token (idx, in, &name);
- idx = sb_skip_white (idx, in);
+ idx = sb_skip_comma (idx, in);
idx = do_formals (macro, idx, in);
}
- /* and stick it in the macro hash table */
+ /* And stick it in the macro hash table. */
for (idx = 0; idx < name.len; idx++)
- if (isupper (name.ptr[idx]))
- name.ptr[idx] = tolower (name.ptr[idx]);
- hash_jam (macro_hash, sb_terminate (&name), (PTR) macro);
+ name.ptr[idx] = TOLOWER (name.ptr[idx]);
+ namestr = sb_terminate (&name);
+ hash_jam (macro_hash, namestr, (PTR) macro);
macro_defined = 1;
+ if (namep != NULL)
+ *namep = namestr;
+
return NULL;
}
int kind;
{
idx = get_token (idx, in, name);
- if (idx < in->len && in->ptr[idx] == kind && ! macro_mri)
+ if (idx < in->len
+ && in->ptr[idx] == kind
+ && (! macro_mri || macro_strip_at)
+ && (! macro_strip_at || kind == '@'))
idx++;
return idx;
}
/* Substitute the actual value for a formal parameter. */
static int
-sub_actual (src, in, t, formal_hash, kind, out, copyifnotthere)
- int src;
+sub_actual (start, in, t, formal_hash, kind, out, copyifnotthere)
+ int start;
sb *in;
sb *t;
struct hash_control *formal_hash;
sb *out;
int copyifnotthere;
{
+ int src;
formal_entry *ptr;
- src = get_apost_token (src, in, t, kind);
- /* See if it's in the macro's hash table */
- ptr = (formal_entry *) hash_find (formal_hash, sb_terminate (t));
+ src = get_apost_token (start, in, t, kind);
+ /* See if it's in the macro's hash table, unless this is
+ macro_strip_at and kind is '@' and the token did not end in '@'. */
+ if (macro_strip_at
+ && kind == '@'
+ && (src == start || in->ptr[src - 1] != '@'))
+ ptr = NULL;
+ else
+ ptr = (formal_entry *) hash_find (formal_hash, sb_terminate (t));
if (ptr)
{
if (ptr->actual.len)
sb_add_sb (out, &ptr->def);
}
}
+ else if (kind == '&')
+ {
+ /* Doing this permits people to use & in macro bodies. */
+ sb_add_char (out, '&');
+ sb_add_sb (out, t);
+ }
else if (copyifnotthere)
{
sb_add_sb (out, t);
}
- else
+ else
{
sb_add_char (out, '\\');
sb_add_sb (out, t);
/* Expand the body of a macro. */
static const char *
-macro_expand_body (in, out, formals, formal_hash, comment_char, locals)
+macro_expand_body (in, out, formals, formal_hash, locals)
sb *in;
sb *out;
formal_entry *formals;
struct hash_control *formal_hash;
- int comment_char;
int locals;
{
sb t;
if (in->ptr[src] == '&')
{
sb_reset (&t);
- if (macro_mri && src + 1 < in->len && in->ptr[src + 1] == '&')
+ if (macro_mri)
{
- src = sub_actual (src + 2, in, &t, formal_hash, '\'', out, 1);
+ if (src + 1 < in->len && in->ptr[src + 1] == '&')
+ src = sub_actual (src + 2, in, &t, formal_hash, '\'', out, 1);
+ else
+ sb_add_char (out, in->ptr[src++]);
}
else
{
+ /* FIXME: Why do we do this? */
src = sub_actual (src + 1, in, &t, formal_hash, '&', out, 0);
}
}
else if (in->ptr[src] == '\\')
{
src++;
- if (in->ptr[src] == comment_char && comment_char != '\0')
+ if (in->ptr[src] == '(')
{
- /* This is a comment, just drop the rest of the line */
- while (src < in->len
- && in->ptr[src] != '\n')
- src++;
- }
- else if (in->ptr[src] == '(')
- {
- /* Sub in till the next ')' literally */
+ /* Sub in till the next ')' literally. */
src++;
while (src < in->len && in->ptr[src] != ')')
{
if (in->ptr[src] == ')')
src++;
else
- return "missplaced )";
+ return _("missplaced )");
}
else if (in->ptr[src] == '@')
{
- /* Sub in the macro invocation number */
+ /* Sub in the macro invocation number. */
- char buffer[6];
+ char buffer[10];
src++;
- sprintf (buffer, "%05d", macro_number);
+ sprintf (buffer, "%d", macro_number);
sb_add_string (out, buffer);
}
else if (in->ptr[src] == '&')
{
/* This is a preprocessor variable name, we don't do them
- here */
+ here. */
sb_add_char (out, '\\');
sb_add_char (out, '&');
src++;
}
- else if (macro_mri
- && isalnum ((unsigned char) in->ptr[src]))
+ else if (macro_mri && ISALNUM (in->ptr[src]))
{
int ind;
formal_entry *f;
- if (isdigit ((unsigned char) in->ptr[src]))
+ if (ISDIGIT (in->ptr[src]))
ind = in->ptr[src] - '0';
- else if (isupper ((unsigned char) in->ptr[src]))
+ else if (ISUPPER (in->ptr[src]))
ind = in->ptr[src] - 'A' + 10;
else
ind = in->ptr[src] - 'a' + 10;
}
}
else if ((macro_alternate || macro_mri)
- && (isalpha ((unsigned char) in->ptr[src])
+ && (ISALPHA (in->ptr[src])
|| in->ptr[src] == '_'
- || in->ptr[src] == '$'))
+ || in->ptr[src] == '$')
+ && (! inquote
+ || ! macro_strip_at
+ || (src > 0 && in->ptr[src - 1] == '@')))
{
if (! locals
|| src + 5 >= in->len
|| ! ISWHITE (in->ptr[src + 5]))
{
sb_reset (&t);
- src = sub_actual (src, in, &t, formal_hash, '\'', out, 1);
+ src = sub_actual (src, in, &t, formal_hash,
+ (macro_strip_at && inquote) ? '@' : '\'',
+ out, 1);
}
else
{
formal_entry *f;
src = sb_skip_white (src + 5, in);
- while (in->ptr[src] != '\n' && in->ptr[src] != comment_char)
+ while (in->ptr[src] != '\n')
{
static int loccnt;
char buf[20];
}
}
}
- else if (comment_char != '\0'
- && in->ptr[src] == comment_char
- && src + 1 < in->len
- && in->ptr[src + 1] == comment_char
- && !inquote)
- {
- /* Two comment chars in a row cause the rest of the line to
- be dropped. */
- while (src < in->len && in->ptr[src] != '\n')
- src++;
- }
else if (in->ptr[src] == '"'
|| (macro_mri && in->ptr[src] == '\''))
{
inquote = !inquote;
sb_add_char (out, in->ptr[src++]);
}
+ else if (in->ptr[src] == '@' && macro_strip_at)
+ {
+ ++src;
+ if (src < in->len
+ && in->ptr[src] == '@')
+ {
+ sb_add_char (out, '@');
+ ++src;
+ }
+ }
else if (macro_mri
&& in->ptr[src] == '='
&& src + 1 < in->len
src = get_token (src + 2, in, &t);
ptr = (formal_entry *) hash_find (formal_hash, sb_terminate (&t));
if (ptr == NULL)
- return "macro formal argument does not exist";
+ {
+ /* FIXME: We should really return a warning string here,
+ but we can't, because the == might be in the MRI
+ comment field, and, since the nature of the MRI
+ comment field depends upon the exact instruction
+ being used, we don't have enough information here to
+ figure out whether it is or not. Instead, we leave
+ the == in place, which should cause a syntax error if
+ it is not in a comment. */
+ sb_add_char (out, '=');
+ sb_add_char (out, '=');
+ sb_add_sb (out, &t);
+ }
else
{
if (ptr->actual.len)
formal_entry *f;
f = loclist->next;
+ /* Setting the value to NULL effectively deletes the entry. We
+ avoid calling hash_delete because it doesn't reclaim memory. */
+ hash_jam (formal_hash, sb_terminate (&loclist->name), NULL);
sb_kill (&loclist->name);
sb_kill (&loclist->def);
sb_kill (&loclist->actual);
body. */
static const char *
-macro_expand (idx, in, m, out, comment_char)
+macro_expand (idx, in, m, out)
int idx;
sb *in;
macro_entry *m;
sb *out;
- int comment_char;
{
sb t;
formal_entry *ptr;
const char *err;
sb_new (&t);
-
- /* Reset any old value the actuals may have */
+
+ /* Reset any old value the actuals may have. */
for (f = m->formals; f; f = f->next)
- sb_reset (&f->actual);
+ sb_reset (&f->actual);
f = m->formals;
while (f != NULL && f->index < 0)
f = f->next;
be referred to in the macro body as \0. */
if (idx < in->len && in->ptr[idx] == '.')
{
- formal_entry *n;
+ /* The Microtec assembler ignores this if followed by a white space.
+ (Macro invocation with empty extension) */
+ idx++;
+ if ( idx < in->len
+ && in->ptr[idx] != ' '
+ && in->ptr[idx] != '\t')
+ {
+ formal_entry *n;
- n = (formal_entry *) xmalloc (sizeof (formal_entry));
- sb_new (&n->name);
- sb_new (&n->def);
- sb_new (&n->actual);
- n->index = QUAL_INDEX;
+ n = (formal_entry *) xmalloc (sizeof (formal_entry));
+ sb_new (&n->name);
+ sb_new (&n->def);
+ sb_new (&n->actual);
+ n->index = QUAL_INDEX;
- n->next = m->formals;
- m->formals = n;
+ n->next = m->formals;
+ m->formals = n;
- idx = get_any_string (idx + 1, in, &n->actual, 1, 0);
+ idx = get_any_string (idx, in, &n->actual, 1, 0);
+ }
}
}
- /* Peel off the actuals and store them away in the hash tables' actuals */
+ /* Peel off the actuals and store them away in the hash tables' actuals. */
idx = sb_skip_white (idx, in);
- while (idx < in->len && in->ptr[idx] != comment_char)
+ while (idx < in->len)
{
int scan;
- /* Look and see if it's a positional or keyword arg */
+ /* Look and see if it's a positional or keyword arg. */
scan = idx;
while (scan < in->len
&& !ISSEP (in->ptr[scan])
+ && !(macro_mri && in->ptr[scan] == '\'')
&& (!macro_alternate && in->ptr[scan] != '='))
scan++;
if (scan < in->len && !macro_alternate && in->ptr[scan] == '=')
{
is_keyword = 1;
- if (is_positional)
- return "can't mix positional and keyword arguments";
+
+ /* It's OK to go from positional to keyword. */
/* This is a keyword arg, fetch the formal name and
- then the actual stuff */
+ then the actual stuff. */
sb_reset (&t);
idx = get_token (idx, in, &t);
if (in->ptr[idx] != '=')
- return "confusion in formal parameters";
+ return _("confusion in formal parameters");
- /* Lookup the formal in the macro's list */
+ /* Lookup the formal in the macro's list. */
ptr = (formal_entry *) hash_find (m->formal_hash, sb_terminate (&t));
if (!ptr)
- return "macro formal argument does not exist";
+ return _("macro formal argument does not exist");
else
{
- /* Insert this value into the right place */
+ /* Insert this value into the right place. */
sb_reset (&ptr->actual);
idx = get_any_string (idx + 1, in, &ptr->actual, 0, 0);
if (ptr->actual.len > 0)
}
else
{
- /* This is a positional arg */
+ /* This is a positional arg. */
is_positional = 1;
if (is_keyword)
- return "can't mix positional and keyword arguments";
+ return _("can't mix positional and keyword arguments");
if (!f)
{
int c;
if (!macro_mri)
- return "too many positional arguments";
+ return _("too many positional arguments");
f = (formal_entry *) xmalloc (sizeof (formal_entry));
sb_new (&f->name);
while (f != NULL && f->index < 0);
}
- idx = sb_skip_comma (idx, in);
+ if (! macro_mri)
+ idx = sb_skip_comma (idx, in);
+ else
+ {
+ if (in->ptr[idx] == ',')
+ ++idx;
+ if (ISWHITE (in->ptr[idx]))
+ break;
+ }
}
if (macro_mri)
char buffer[20];
sb_reset (&t);
- sb_add_string (&t, "NARG");
+ sb_add_string (&t, macro_strip_at ? "$NARG" : "NARG");
ptr = (formal_entry *) hash_find (m->formal_hash, sb_terminate (&t));
sb_reset (&ptr->actual);
sprintf (buffer, "%d", narg);
sb_add_string (&ptr->actual, buffer);
}
- err = macro_expand_body (&m->sub, out, m->formals, m->formal_hash,
- comment_char, 1);
+ err = macro_expand_body (&m->sub, out, m->formals, m->formal_hash, 1);
if (err != NULL)
return err;
}
/* Check for a macro. If one is found, put the expansion into
- *EXPAND. COMMENT_CHAR is the comment character--this is used by
- gasp. Return 1 if a macro is found, 0 otherwise. */
+ *EXPAND. Return 1 if a macro is found, 0 otherwise. */
int
-check_macro (line, expand, comment_char, error)
+check_macro (line, expand, error, info)
const char *line;
sb *expand;
- int comment_char;
const char **error;
+ macro_entry **info;
{
const char *s;
char *copy, *cs;
macro_entry *macro;
sb line_sb;
- if (! isalpha ((unsigned char) *line)
+ if (! ISALPHA (*line)
&& *line != '_'
&& *line != '$'
&& (! macro_mri || *line != '.'))
return 0;
s = line + 1;
- while (isalnum ((unsigned char) *s)
+ while (ISALNUM (*s)
|| *s == '_'
|| *s == '$')
++s;
- copy = (char *) xmalloc (s - line + 1);
+ copy = (char *) alloca (s - line + 1);
memcpy (copy, line, s - line);
copy[s - line] = '\0';
for (cs = copy; *cs != '\0'; cs++)
- if (isupper (*cs))
- *cs = tolower (*cs);
+ *cs = TOLOWER (*cs);
macro = (macro_entry *) hash_find (macro_hash, copy);
sb_add_char (&line_sb, *s++);
sb_new (expand);
- *error = macro_expand (0, &line_sb, macro, expand, comment_char);
+ *error = macro_expand (0, &line_sb, macro, expand);
sb_kill (&line_sb);
+ /* Export the macro information if requested. */
+ if (info)
+ *info = macro;
+
return 1;
}
+/* Delete a macro. */
+
+void
+delete_macro (name)
+ const char *name;
+{
+ hash_delete (macro_hash, name);
+}
+
/* Handle the MRI IRP and IRPC pseudo-ops. These are handled as a
combined macro definition and execution. This returns NULL on
success, or an error message otherwise. */
const char *
-expand_irp (irpc, idx, in, out, get_line, comment_char)
+expand_irp (irpc, idx, in, out, get_line)
int irpc;
int idx;
sb *in;
sb *out;
int (*get_line) PARAMS ((sb *));
- int comment_char;
{
const char *mn;
sb sub;
sb_new (&sub);
if (! buffer_and_nest (mn, "ENDR", &sub, get_line))
- return "unexpected end of file in irp or irpc";
-
+ return _("unexpected end of file in irp or irpc");
+
sb_new (&f.name);
sb_new (&f.def);
sb_new (&f.actual);
idx = get_token (idx, in, &f.name);
if (f.name.len == 0)
- return "missing model parameter";
+ return _("missing model parameter");
h = hash_new ();
err = hash_jam (h, sb_terminate (&f.name), &f);
sb_reset (out);
idx = sb_skip_comma (idx, in);
- if (idx >= in->len || in->ptr[idx] == comment_char)
+ if (idx >= in->len)
{
/* Expand once with a null string. */
- err = macro_expand_body (&sub, out, &f, h, comment_char, 0);
+ err = macro_expand_body (&sub, out, &f, h, 0);
if (err != NULL)
return err;
}
else
{
- while (idx < in->len && in->ptr[idx] != comment_char)
+ if (irpc && in->ptr[idx] == '"')
+ ++idx;
+ while (idx < in->len)
{
if (!irpc)
idx = get_any_string (idx, in, &f.actual, 1, 0);
else
{
+ if (in->ptr[idx] == '"')
+ {
+ int nxt;
+
+ nxt = sb_skip_white (idx + 1, in);
+ if (nxt >= in->len)
+ {
+ idx = nxt;
+ break;
+ }
+ }
sb_reset (&f.actual);
sb_add_char (&f.actual, in->ptr[idx]);
++idx;
}
- err = macro_expand_body (&sub, out, &f, h, comment_char, 0);
+ err = macro_expand_body (&sub, out, &f, h, 0);
if (err != NULL)
return err;
if (!irpc)