#include "toplev.h"
#include "debug.h"
#include "flags.h"
+#include "cpp.h"
/* Structure for holding module and include file search path. */
typedef struct gfc_directorylist
/* Passing a negative length is used to indicate that length should be
calculated using gfc_wide_strlen(). */
len = (length >= 0 ? (size_t) length : gfc_wide_strlen (s));
- res = gfc_getmem (len + 1);
+ res = XNEWVEC (char, len + 1);
for (i = 0; i < len; i++)
{
dir = *list;
if (!dir)
- dir = *list = gfc_getmem (sizeof (gfc_directorylist));
+ dir = *list = XCNEW (gfc_directorylist);
else
{
while (dir->next)
dir = dir->next;
- dir->next = gfc_getmem (sizeof (gfc_directorylist));
+ dir->next = XCNEW (gfc_directorylist);
dir = dir->next;
}
dir->next = NULL;
dir->use_for_modules = use_for_modules;
- dir->path = gfc_getmem (strlen (p) + 2);
+ dir->path = XCNEWVEC (char, strlen (p) + 2);
strcpy (dir->path, p);
strcat (dir->path, "/"); /* make '/' last character */
}
gfc_add_include_path (const char *path, bool use_for_modules)
{
add_path_to_list (&include_dirs, path, use_for_modules);
+ gfc_cpp_add_include_path (xstrdup(path), true);
}
file_changes_allocated *= 2;
else
file_changes_allocated = 16;
- file_changes
- = xrealloc (file_changes,
- file_changes_allocated * sizeof (*file_changes));
+ file_changes = XRESIZEVEC (struct gfc_file_change, file_changes,
+ file_changes_allocated);
}
file_changes[file_changes_count].filename = filename;
file_changes[file_changes_count].lb = NULL;
if (((c = next_char ()) == 'm' || c == 'M')
&& ((c = next_char ()) == 'p' || c == 'P'))
{
- if ((c = next_char ()) == ' ' || continue_flag)
+ if ((c = next_char ()) == ' ' || c == '\t'
+ || continue_flag)
{
while (gfc_is_whitespace (c))
c = next_char ();
next_char ();
c = next_char ();
}
- if (continue_flag || c == ' ')
+ if (continue_flag || c == ' ' || c == '\t')
{
gfc_current_locus = old_loc;
next_char ();
c = next_char ();
if (c != '\n'
&& ((openmp_flag && continue_flag)
- || c == ' ' || c == '0'))
+ || c == ' ' || c == '\t' || c == '0'))
{
- c = next_char ();
- while (gfc_is_whitespace (c))
+ do
c = next_char ();
+ while (gfc_is_whitespace (c));
if (c != '\n' && c != '!')
{
/* Canonicalize to *$omp. */
for (col = 3; col < 6; col++, c = next_char ())
if (c == ' ')
continue;
+ else if (c == '\t')
+ {
+ col = 6;
+ break;
+ }
else if (c < '0' || c > '9')
break;
else
if (col == 6 && c != '\n'
&& ((continue_flag && !digit_seen)
- || c == ' ' || c == '0'))
+ || c == ' ' || c == '\t' || c == '0'))
{
gfc_current_locus = start;
start.nextc[0] = ' ';
In fixed mode, we expand a tab that occurs within the statement
label region to expand to spaces that leave the next character in
the source region.
+
+ If first_char is not NULL, it's a pointer to a single char value holding
+ the first character of the line, which has already been read by the
+ caller. This avoids the use of ungetc().
+
load_line returns whether the line was truncated.
NOTE: The error machinery isn't available at this point, so we can't
parts of gfortran. */
static int
-load_line (FILE *input, gfc_char_t **pbuf, int *pbuflen)
+load_line (FILE *input, gfc_char_t **pbuf, int *pbuflen, const int *first_char)
{
static int linenum = 0, current_line = 1;
int c, maxlen, i, preprocessor_flag, buflen = *pbuflen;
i = 0;
buffer = *pbuf;
- preprocessor_flag = 0;
- c = getc (input);
- if (c == '#')
- /* In order to not truncate preprocessor lines, we have to
- remember that this is one. */
- preprocessor_flag = 1;
- ungetc (c, input);
+ if (first_char)
+ c = *first_char;
+ else
+ c = getc (input);
+
+ /* In order to not truncate preprocessor lines, we have to
+ remember that this is one. */
+ preprocessor_flag = (c == '#' ? 1 : 0);
for (;;)
{
- c = getc (input);
-
if (c == EOF)
break;
+
if (c == '\n')
{
/* Check for illegal use of ampersand. See F95 Standard 3.3.1.3. */
break;
}
- if (c == '\r')
- continue; /* Gobble characters. */
- if (c == '\0')
- continue;
+ if (c == '\r' || c == '\0')
+ goto next_char; /* Gobble characters. */
if (c == '&')
{
if (c >= '1' && c <= '9')
{
*(buffer-1) = c;
- continue;
+ goto next_char;
}
}
i++;
}
- continue;
+ goto next_char;
}
*buffer++ = c;
/* Reallocate line buffer to double size to hold the
overlong line. */
buflen = buflen * 2;
- *pbuf = xrealloc (*pbuf, (buflen + 1) * sizeof (gfc_char_t));
+ *pbuf = XRESIZEVEC (gfc_char_t, *pbuf, (buflen + 1));
buffer = (*pbuf) + i;
}
}
trunc_flag = 1;
}
- ungetc ('\n', input);
+ c = '\n';
+ continue;
}
+
+next_char:
+ c = getc (input);
}
/* Pad lines to the selected line length in fixed form. */
{
gfc_file *f;
- f = gfc_getmem (sizeof (gfc_file));
+ f = XCNEW (gfc_file);
- f->filename = gfc_getmem (strlen (name) + 1);
- strcpy (f->filename, name);
+ f->filename = xstrdup (name);
f->next = file_head;
file_head = f;
if (strcmp (current_file->filename, filename) != 0)
{
- gfc_free (current_file->filename);
- current_file->filename = gfc_getmem (strlen (filename) + 1);
- strcpy (current_file->filename, filename);
+ /* FIXME: we leak the old filename because a pointer to it may be stored
+ in the linemap. Alternative could be using GC or updating linemap to
+ point to the new name, but there is no API for that currently. */
+ current_file->filename = xstrdup (filename);
}
/* Set new line number. */
}
-static try load_file (const char *, bool);
+static gfc_try load_file (const char *, const char *, bool);
/* include_line()-- Checks a line buffer to see if it is an include
line. If so, we call load_file() recursively to load the included
read by anything else. */
filename = gfc_widechar_to_char (begin, -1);
- load_file (filename, false);
+ load_file (filename, NULL, false);
gfc_free (filename);
return true;
}
/* Load a file into memory by calling load_line until the file ends. */
-static try
-load_file (const char *filename, bool initial)
+static gfc_try
+load_file (const char *realfilename, const char *displayedname, bool initial)
{
gfc_char_t *line;
gfc_linebuf *b;
FILE *input;
int len, line_len;
bool first_line;
+ const char *filename;
+
+ filename = displayedname ? displayedname : realfilename;
for (f = current_file; f; f = f->up)
if (strcmp (filename, f->filename) == 0)
gfc_src_file = NULL;
}
else
- input = gfc_open_file (filename);
+ input = gfc_open_file (realfilename);
if (input == NULL)
{
gfc_error_now ("Can't open file '%s'", filename);
}
else
{
- input = gfc_open_included_file (filename, false, false);
+ input = gfc_open_included_file (realfilename, false, false);
if (input == NULL)
{
gfc_error_now ("Can't open included file '%s'", filename);
for (;;)
{
- int trunc = load_line (input, &line, &line_len);
+ int trunc = load_line (input, &line, &line_len, NULL);
len = gfc_wide_strlen (line);
if (feof (input) && len == 0)
&& line[2] == (unsigned char) '\xBF')))
{
int n = line[1] == (unsigned char) '\xBB' ? 3 : 2;
- gfc_char_t *new = gfc_get_wide_string (line_len);
+ gfc_char_t *new_char = gfc_get_wide_string (line_len);
- wide_strcpy (new, &line[n]);
+ wide_strcpy (new_char, &line[n]);
gfc_free (line);
- line = new;
+ line = new_char;
len -= n;
}
/* Add line. */
- b = gfc_getmem (gfc_linebuf_header_size
- + (len + 1) * sizeof (gfc_char_t));
+ b = (gfc_linebuf *) gfc_getmem (gfc_linebuf_header_size
+ + (len + 1) * sizeof (gfc_char_t));
b->location
= linemap_line_start (line_table, current_file->line++, 120);
/* Open a new file and start scanning from that file. Returns SUCCESS
- if everything went OK, FAILURE otherwise. If form == FORM_UKNOWN
+ if everything went OK, FAILURE otherwise. If form == FORM_UNKNOWN
it tries to determine the source form from the filename, defaulting
to free form. */
-try
+gfc_try
gfc_new_file (void)
{
- try result;
+ gfc_try result;
- result = load_file (gfc_source_file, true);
+ if (gfc_cpp_enabled ())
+ {
+ result = gfc_cpp_preprocess (gfc_source_file);
+ if (!gfc_cpp_preprocess_only ())
+ result = load_file (gfc_cpp_temporary_file (), gfc_source_file, true);
+ }
+ else
+ result = load_file (gfc_source_file, NULL, true);
gfc_current_locus.lb = line_head;
gfc_current_locus.nextc = (line_head == NULL) ? NULL : line_head->line;
/* Undo effects of cpp_quote_string. */
s = ptr;
- d = gfc_getmem (p + 1 - ptr - unescape);
+ d = XCNEWVEC (char, p + 1 - ptr - unescape);
ret = d;
while (s != p)
return NULL;
c = getc (gfc_src_file);
- ungetc (c, gfc_src_file);
if (c != '#')
return NULL;
len = 0;
- load_line (gfc_src_file, &gfc_src_preprocessor_lines[0], &len);
+ load_line (gfc_src_file, &gfc_src_preprocessor_lines[0], &len, &c);
if (wide_strncmp (gfc_src_preprocessor_lines[0], "# 1 \"", 5) != 0)
return NULL;
return NULL;
c = getc (gfc_src_file);
- ungetc (c, gfc_src_file);
if (c != '#')
return filename;
len = 0;
- load_line (gfc_src_file, &gfc_src_preprocessor_lines[1], &len);
+ load_line (gfc_src_file, &gfc_src_preprocessor_lines[1], &len, &c);
if (wide_strncmp (gfc_src_preprocessor_lines[1], "# 1 \"", 5) != 0)
return filename;
if (! IS_ABSOLUTE_PATH (filename))
{
- char *p = gfc_getmem (len + strlen (filename));
+ char *p = XCNEWVEC (char, len + strlen (filename));
memcpy (p, dirname, len - 2);
p[len - 2] = '/';
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