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scanner.c (preprocessor_line): Accept preprocessor lines without file names.

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2004-10-04  Erik Schnetter  <schnetter@aei.mpg.de>

	* scanner.c (preprocessor_line): Accept preprocessor lines without
	file names.  Check file names for closing quotes.  Handle escaped
	quotes in file names.

From-SVN: r88514
This commit is contained in:
Erik Schnetter 2004-10-04 15:47:16 +00:00 • committed by Paul Brook
parent 06e4f02a16
commit d7d528c8c8
2 changed files with 39 additions and 7 deletions
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6
gcc/fortran/ChangeLog
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@ -1,3 +1,9 @@
2004-10-04 Erik Schnetter <schnetter@aei.mpg.de>
* scanner.c (preprocessor_line): Accept preprocessor lines without
file names. Check file names for closing quotes. Handle escaped
quotes in file names.
2004-10-04 Tobias Schlueter <tobias.schlueter@physik.uni-muenchen.de>
Paul Brook <paul@codesourcery.com>

40
gcc/fortran/scanner.c
View file

@ -834,6 +834,7 @@ preprocessor_line (char *c)
int i, line;
char *filename;
gfc_file *f;
int escaped;
c++;
while (*c == ' ' || *c == '\t')
@ -844,19 +845,46 @@ preprocessor_line (char *c)
line = atoi (c);
/* Set new line number. */
current_file->line = line;
c = strchr (c, ' ');
if (c == NULL)
/* Something we don't understand has happened. */
/* No file name given. */
return;
/* Skip spaces. */
while (*c == ' ' || *c == '\t')
c++;
/* Skip quote. */
if (*c != '"')
goto bad_cpp_line;
c += 2; /* Skip space and quote. */
++c;
filename = c;
c = strchr (c, '"'); /* Make filename end at quote. */
if (c == NULL)
/* Make filename end at quote. */
escaped = false;
while (*c && ! (! escaped && *c == '"'))
{
if (escaped)
escaped = false;
else
escaped = *c == '\\';
++c;
}
if (! *c)
/* Preprocessor line has no closing quote. */
goto bad_cpp_line;
*c++ = '\0';
/* Get flags. */
flag[1] = flag[2] = flag[3] = flag[4] = flag[5] = false;
@ -888,8 +916,6 @@ preprocessor_line (char *c)
current_file = current_file->up;
}
current_file->line = line;
/* The name of the file can be a temporary file produced by
cpp. Replace the name if it is different. */
@ -903,7 +929,7 @@ preprocessor_line (char *c)
return;
bad_cpp_line:
gfc_warning_now ("%s:%d: Unknown preprocessor directive",
gfc_warning_now ("%s:%d: Illegal preprocessor directive",
current_file->filename, current_file->line);
current_file->line++;
}