1 /* Copyright (C) 2002-2017 Free Software Foundation, Inc.
2 Contributed by Andy Vaught
3 Namelist input contributed by Paul Thomas
4 F2003 I/O support contributed by Jerry DeLisle
6 This file is part of the GNU Fortran runtime library (libgfortran).
8 Libgfortran is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3, or (at your option)
13 Libgfortran is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 Under Section 7 of GPL version 3, you are granted additional
19 permissions described in the GCC Runtime Library Exception, version
20 3.1, as published by the Free Software Foundation.
22 You should have received a copy of the GNU General Public License and
23 a copy of the GCC Runtime Library Exception along with this program;
24 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
25 <http://www.gnu.org/licenses/>. */
34 typedef unsigned char uchar
;
37 /* List directed input. Several parsing subroutines are practically
38 reimplemented from formatted input, the reason being that there are
39 all kinds of small differences between formatted and list directed
43 /* Subroutines for reading characters from the input. Because a
44 repeat count is ambiguous with an integer, we have to read the
45 whole digit string before seeing if there is a '*' which signals
46 the repeat count. Since we can have a lot of potential leading
47 zeros, we have to be able to back up by arbitrary amount. Because
48 the input might not be seekable, we have to buffer the data
51 #define CASE_DIGITS case '0': case '1': case '2': case '3': case '4': \
52 case '5': case '6': case '7': case '8': case '9'
54 #define CASE_SEPARATORS /* Fall through. */ \
55 case ' ': case ',': case '/': case '\n': \
56 case '\t': case '\r': case ';'
58 /* This macro assumes that we're operating on a variable. */
60 #define is_separator(c) (c == '/' || c == ',' || c == '\n' || c == ' ' \
61 || c == '\t' || c == '\r' || c == ';' || \
62 (dtp->u.p.namelist_mode && c == '!'))
64 /* Maximum repeat count. Less than ten times the maximum signed int32. */
66 #define MAX_REPEAT 200000000
72 /* Wrappers for calling the current worker functions. */
74 #define next_char(dtp) ((dtp)->u.p.current_unit->next_char_fn_ptr (dtp))
75 #define push_char(dtp, c) ((dtp)->u.p.current_unit->push_char_fn_ptr (dtp, c))
77 /* Worker function to save a default KIND=1 character to a string
78 buffer, enlarging it as necessary. */
81 push_char_default (st_parameter_dt
*dtp
, int c
)
85 if (dtp
->u
.p
.saved_string
== NULL
)
87 /* Plain malloc should suffice here, zeroing not needed? */
88 dtp
->u
.p
.saved_string
= xcalloc (SCRATCH_SIZE
, 1);
89 dtp
->u
.p
.saved_length
= SCRATCH_SIZE
;
90 dtp
->u
.p
.saved_used
= 0;
93 if (dtp
->u
.p
.saved_used
>= dtp
->u
.p
.saved_length
)
95 dtp
->u
.p
.saved_length
= 2 * dtp
->u
.p
.saved_length
;
96 dtp
->u
.p
.saved_string
=
97 xrealloc (dtp
->u
.p
.saved_string
, dtp
->u
.p
.saved_length
);
100 dtp
->u
.p
.saved_string
[dtp
->u
.p
.saved_used
++] = (char) c
;
104 /* Worker function to save a KIND=4 character to a string buffer,
105 enlarging the buffer as necessary. */
107 push_char4 (st_parameter_dt
*dtp
, int c
)
109 gfc_char4_t
*p
= (gfc_char4_t
*) dtp
->u
.p
.saved_string
;
113 dtp
->u
.p
.saved_string
= xcalloc (SCRATCH_SIZE
, sizeof (gfc_char4_t
));
114 dtp
->u
.p
.saved_length
= SCRATCH_SIZE
;
115 dtp
->u
.p
.saved_used
= 0;
116 p
= (gfc_char4_t
*) dtp
->u
.p
.saved_string
;
119 if (dtp
->u
.p
.saved_used
>= dtp
->u
.p
.saved_length
)
121 dtp
->u
.p
.saved_length
= 2 * dtp
->u
.p
.saved_length
;
122 dtp
->u
.p
.saved_string
=
123 xrealloc (dtp
->u
.p
.saved_string
,
124 dtp
->u
.p
.saved_length
* sizeof (gfc_char4_t
));
125 p
= (gfc_char4_t
*) dtp
->u
.p
.saved_string
;
128 p
[dtp
->u
.p
.saved_used
++] = c
;
132 /* Free the input buffer if necessary. */
135 free_saved (st_parameter_dt
*dtp
)
137 if (dtp
->u
.p
.saved_string
== NULL
)
140 free (dtp
->u
.p
.saved_string
);
142 dtp
->u
.p
.saved_string
= NULL
;
143 dtp
->u
.p
.saved_used
= 0;
147 /* Free the line buffer if necessary. */
150 free_line (st_parameter_dt
*dtp
)
152 dtp
->u
.p
.line_buffer_pos
= 0;
153 dtp
->u
.p
.line_buffer_enabled
= 0;
155 if (dtp
->u
.p
.line_buffer
== NULL
)
158 free (dtp
->u
.p
.line_buffer
);
159 dtp
->u
.p
.line_buffer
= NULL
;
163 /* Unget saves the last character so when reading the next character,
164 we need to check to see if there is a character waiting. Similar,
165 if the line buffer is being used to read_logical, check it too. */
168 check_buffers (st_parameter_dt
*dtp
)
173 if (dtp
->u
.p
.current_unit
->last_char
!= EOF
- 1)
176 c
= dtp
->u
.p
.current_unit
->last_char
;
177 dtp
->u
.p
.current_unit
->last_char
= EOF
- 1;
181 /* Read from line_buffer if enabled. */
183 if (dtp
->u
.p
.line_buffer_enabled
)
187 c
= dtp
->u
.p
.line_buffer
[dtp
->u
.p
.line_buffer_pos
];
188 if (c
!= '\0' && dtp
->u
.p
.line_buffer_pos
< 64)
190 dtp
->u
.p
.line_buffer
[dtp
->u
.p
.line_buffer_pos
] = '\0';
191 dtp
->u
.p
.line_buffer_pos
++;
195 dtp
->u
.p
.line_buffer_pos
= 0;
196 dtp
->u
.p
.line_buffer_enabled
= 0;
200 dtp
->u
.p
.at_eol
= (c
== '\n' || c
== '\r' || c
== EOF
);
205 /* Worker function for default character encoded file. */
207 next_char_default (st_parameter_dt
*dtp
)
211 /* Always check the unget and line buffer first. */
212 if ((c
= check_buffers (dtp
)))
215 c
= fbuf_getc (dtp
->u
.p
.current_unit
);
216 if (c
!= EOF
&& is_stream_io (dtp
))
217 dtp
->u
.p
.current_unit
->strm_pos
++;
219 dtp
->u
.p
.at_eol
= (c
== '\n' || c
== EOF
);
224 /* Worker function for internal and array I/O units. */
226 next_char_internal (st_parameter_dt
*dtp
)
232 /* Always check the unget and line buffer first. */
233 if ((c
= check_buffers (dtp
)))
236 /* Handle the end-of-record and end-of-file conditions for
237 internal array unit. */
238 if (is_array_io (dtp
))
243 /* Check for "end-of-record" condition. */
244 if (dtp
->u
.p
.current_unit
->bytes_left
== 0)
249 record
= next_array_record (dtp
, dtp
->u
.p
.current_unit
->ls
,
252 /* Check for "end-of-file" condition. */
259 record
*= dtp
->u
.p
.current_unit
->recl
;
260 if (sseek (dtp
->u
.p
.current_unit
->s
, record
, SEEK_SET
) < 0)
263 dtp
->u
.p
.current_unit
->bytes_left
= dtp
->u
.p
.current_unit
->recl
;
268 /* Get the next character and handle end-of-record conditions. */
270 if (is_char4_unit(dtp
)) /* Check for kind=4 internal unit. */
271 length
= sread (dtp
->u
.p
.current_unit
->s
, &c
, 1);
275 length
= sread (dtp
->u
.p
.current_unit
->s
, &cc
, 1);
279 if (unlikely (length
< 0))
281 generate_error (&dtp
->common
, LIBERROR_OS
, NULL
);
285 if (is_array_io (dtp
))
287 /* Check whether we hit EOF. */
288 if (unlikely (length
== 0))
290 generate_error (&dtp
->common
, LIBERROR_INTERNAL_UNIT
, NULL
);
293 dtp
->u
.p
.current_unit
->bytes_left
--;
307 dtp
->u
.p
.at_eol
= (c
== '\n' || c
== EOF
);
312 /* Worker function for UTF encoded files. */
314 next_char_utf8 (st_parameter_dt
*dtp
)
316 static const uchar masks
[6] = { 0x7F, 0x1F, 0x0F, 0x07, 0x02, 0x01 };
317 static const uchar patns
[6] = { 0x00, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC };
321 /* Always check the unget and line buffer first. */
322 if (!(c
= check_buffers (dtp
)))
323 c
= fbuf_getc (dtp
->u
.p
.current_unit
);
328 /* The number of leading 1-bits in the first byte indicates how many
330 for (nb
= 2; nb
< 7; nb
++)
331 if ((c
& ~masks
[nb
-1]) == patns
[nb
-1])
336 c
= (c
& masks
[nb
-1]);
338 /* Decode the bytes read. */
339 for (i
= 1; i
< nb
; i
++)
341 gfc_char4_t n
= fbuf_getc (dtp
->u
.p
.current_unit
);
342 if ((n
& 0xC0) != 0x80)
344 c
= ((c
<< 6) + (n
& 0x3F));
347 /* Make sure the shortest possible encoding was used. */
348 if (c
<= 0x7F && nb
> 1) goto invalid
;
349 if (c
<= 0x7FF && nb
> 2) goto invalid
;
350 if (c
<= 0xFFFF && nb
> 3) goto invalid
;
351 if (c
<= 0x1FFFFF && nb
> 4) goto invalid
;
352 if (c
<= 0x3FFFFFF && nb
> 5) goto invalid
;
354 /* Make sure the character is valid. */
355 if (c
> 0x7FFFFFFF || (c
>= 0xD800 && c
<= 0xDFFF))
359 dtp
->u
.p
.at_eol
= (c
== '\n' || c
== (gfc_char4_t
) EOF
);
363 generate_error (&dtp
->common
, LIBERROR_READ_VALUE
, "Invalid UTF-8 encoding");
364 return (gfc_char4_t
) '?';
367 /* Push a character back onto the input. */
370 unget_char (st_parameter_dt
*dtp
, int c
)
372 dtp
->u
.p
.current_unit
->last_char
= c
;
376 /* Skip over spaces in the input. Returns the nonspace character that
377 terminated the eating and also places it back on the input. */
380 eat_spaces (st_parameter_dt
*dtp
)
384 /* If internal character array IO, peak ahead and seek past spaces.
385 This is an optimization unique to character arrays with large
386 character lengths (PR38199). This code eliminates numerous calls
387 to next_character. */
388 if (is_array_io (dtp
) && (dtp
->u
.p
.current_unit
->last_char
== EOF
- 1))
390 gfc_offset offset
= stell (dtp
->u
.p
.current_unit
->s
);
393 if (is_char4_unit(dtp
)) /* kind=4 */
395 for (i
= 0; i
< dtp
->u
.p
.current_unit
->bytes_left
; i
++)
397 if (dtp
->internal_unit
[(offset
+ i
) * sizeof (gfc_char4_t
)]
404 for (i
= 0; i
< dtp
->u
.p
.current_unit
->bytes_left
; i
++)
406 if (dtp
->internal_unit
[offset
+ i
] != ' ')
413 sseek (dtp
->u
.p
.current_unit
->s
, offset
+ i
, SEEK_SET
);
414 dtp
->u
.p
.current_unit
->bytes_left
-= i
;
418 /* Now skip spaces, EOF and EOL are handled in next_char. */
421 while (c
!= EOF
&& (c
== ' ' || c
== '\r' || c
== '\t'));
428 /* This function reads characters through to the end of the current
429 line and just ignores them. Returns 0 for success and LIBERROR_END
433 eat_line (st_parameter_dt
*dtp
)
439 while (c
!= EOF
&& c
!= '\n');
446 /* Skip over a separator. Technically, we don't always eat the whole
447 separator. This is because if we've processed the last input item,
448 then a separator is unnecessary. Plus the fact that operating
449 systems usually deliver console input on a line basis.
451 The upshot is that if we see a newline as part of reading a
452 separator, we stop reading. If there are more input items, we
453 continue reading the separator with finish_separator() which takes
454 care of the fact that we may or may not have seen a comma as part
457 Returns 0 for success, and non-zero error code otherwise. */
460 eat_separator (st_parameter_dt
*dtp
)
466 dtp
->u
.p
.comma_flag
= 0;
468 if ((c
= next_char (dtp
)) == EOF
)
473 if (dtp
->u
.p
.current_unit
->decimal_status
== DECIMAL_COMMA
)
480 dtp
->u
.p
.comma_flag
= 1;
485 dtp
->u
.p
.input_complete
= 1;
489 if ((n
= next_char(dtp
)) == EOF
)
499 if (dtp
->u
.p
.namelist_mode
)
503 if ((c
= next_char (dtp
)) == EOF
)
507 err
= eat_line (dtp
);
513 while (c
== '\n' || c
== '\r' || c
== ' ' || c
== '\t');
519 /* Eat a namelist comment. */
520 if (dtp
->u
.p
.namelist_mode
)
522 err
= eat_line (dtp
);
529 /* Fall Through... */
539 /* Finish processing a separator that was interrupted by a newline.
540 If we're here, then another data item is present, so we finish what
541 we started on the previous line. Return 0 on success, error code
545 finish_separator (st_parameter_dt
*dtp
)
548 int err
= LIBERROR_OK
;
553 if ((c
= next_char (dtp
)) == EOF
)
558 if (dtp
->u
.p
.comma_flag
)
562 if ((c
= eat_spaces (dtp
)) == EOF
)
564 if (c
== '\n' || c
== '\r')
571 dtp
->u
.p
.input_complete
= 1;
572 if (!dtp
->u
.p
.namelist_mode
)
581 if (dtp
->u
.p
.namelist_mode
)
583 err
= eat_line (dtp
);
597 /* This function is needed to catch bad conversions so that namelist can
598 attempt to see if dtp->u.p.saved_string contains a new object name rather
602 nml_bad_return (st_parameter_dt
*dtp
, char c
)
604 if (dtp
->u
.p
.namelist_mode
)
606 dtp
->u
.p
.nml_read_error
= 1;
613 /* Convert an unsigned string to an integer. The length value is -1
614 if we are working on a repeat count. Returns nonzero if we have a
615 range problem. As a side effect, frees the dtp->u.p.saved_string. */
618 convert_integer (st_parameter_dt
*dtp
, int length
, int negative
)
620 char c
, *buffer
, message
[MSGLEN
];
622 GFC_UINTEGER_LARGEST v
, max
, max10
;
623 GFC_INTEGER_LARGEST value
;
625 buffer
= dtp
->u
.p
.saved_string
;
632 max
= si_max (length
);
662 set_integer (dtp
->u
.p
.value
, value
, length
);
666 dtp
->u
.p
.repeat_count
= v
;
668 if (dtp
->u
.p
.repeat_count
== 0)
670 snprintf (message
, MSGLEN
, "Zero repeat count in item %d of list input",
671 dtp
->u
.p
.item_count
);
673 generate_error (&dtp
->common
, LIBERROR_READ_VALUE
, message
);
683 snprintf (message
, MSGLEN
, "Repeat count overflow in item %d of list input",
684 dtp
->u
.p
.item_count
);
686 snprintf (message
, MSGLEN
, "Integer overflow while reading item %d",
687 dtp
->u
.p
.item_count
);
690 generate_error (&dtp
->common
, LIBERROR_READ_VALUE
, message
);
696 /* Parse a repeat count for logical and complex values which cannot
697 begin with a digit. Returns nonzero if we are done, zero if we
698 should continue on. */
701 parse_repeat (st_parameter_dt
*dtp
)
703 char message
[MSGLEN
];
706 if ((c
= next_char (dtp
)) == EOF
)
730 repeat
= 10 * repeat
+ c
- '0';
732 if (repeat
> MAX_REPEAT
)
734 snprintf (message
, MSGLEN
,
735 "Repeat count overflow in item %d of list input",
736 dtp
->u
.p
.item_count
);
738 generate_error (&dtp
->common
, LIBERROR_READ_VALUE
, message
);
747 snprintf (message
, MSGLEN
,
748 "Zero repeat count in item %d of list input",
749 dtp
->u
.p
.item_count
);
751 generate_error (&dtp
->common
, LIBERROR_READ_VALUE
, message
);
763 dtp
->u
.p
.repeat_count
= repeat
;
777 snprintf (message
, MSGLEN
, "Bad repeat count in item %d of list input",
778 dtp
->u
.p
.item_count
);
779 generate_error (&dtp
->common
, LIBERROR_READ_VALUE
, message
);
784 /* To read a logical we have to look ahead in the input stream to make sure
785 there is not an equal sign indicating a variable name. To do this we use
786 line_buffer to point to a temporary buffer, pushing characters there for
787 possible later reading. */
790 l_push_char (st_parameter_dt
*dtp
, char c
)
792 if (dtp
->u
.p
.line_buffer
== NULL
)
793 dtp
->u
.p
.line_buffer
= xcalloc (SCRATCH_SIZE
, 1);
795 dtp
->u
.p
.line_buffer
[dtp
->u
.p
.line_buffer_pos
++] = c
;
799 /* Read a logical character on the input. */
802 read_logical (st_parameter_dt
*dtp
, int length
)
804 char message
[MSGLEN
];
807 if (parse_repeat (dtp
))
810 c
= tolower (next_char (dtp
));
811 l_push_char (dtp
, c
);
817 l_push_char (dtp
, c
);
819 if (!is_separator(c
) && c
!= EOF
)
827 l_push_char (dtp
, c
);
829 if (!is_separator(c
) && c
!= EOF
)
836 c
= tolower (next_char (dtp
));
852 if (!dtp
->u
.p
.namelist_mode
)
859 return; /* Null value. */
862 /* Save the character in case it is the beginning
863 of the next object name. */
868 dtp
->u
.p
.saved_type
= BT_LOGICAL
;
869 dtp
->u
.p
.saved_length
= length
;
871 /* Eat trailing garbage. */
874 while (c
!= EOF
&& !is_separator (c
));
878 set_integer ((int *) dtp
->u
.p
.value
, v
, length
);
885 for(i
= 0; i
< 63; i
++)
890 /* All done if this is not a namelist read. */
891 if (!dtp
->u
.p
.namelist_mode
)
904 l_push_char (dtp
, c
);
907 dtp
->u
.p
.nml_read_error
= 1;
908 dtp
->u
.p
.line_buffer_enabled
= 1;
909 dtp
->u
.p
.line_buffer_pos
= 0;
917 if (nml_bad_return (dtp
, c
))
933 snprintf (message
, MSGLEN
, "Bad logical value while reading item %d",
934 dtp
->u
.p
.item_count
);
936 generate_error (&dtp
->common
, LIBERROR_READ_VALUE
, message
);
941 dtp
->u
.p
.saved_type
= BT_LOGICAL
;
942 dtp
->u
.p
.saved_length
= length
;
943 set_integer ((int *) dtp
->u
.p
.value
, v
, length
);
949 /* Reading integers is tricky because we can actually be reading a
950 repeat count. We have to store the characters in a buffer because
951 we could be reading an integer that is larger than the default int
952 used for repeat counts. */
955 read_integer (st_parameter_dt
*dtp
, int length
)
957 char message
[MSGLEN
];
967 /* Fall through... */
970 if ((c
= next_char (dtp
)) == EOF
)
975 if (!dtp
->u
.p
.namelist_mode
)
978 CASE_SEPARATORS
: /* Single null. */
991 /* Take care of what may be a repeat count. */
1003 push_char (dtp
, '\0');
1007 if (!dtp
->u
.p
.namelist_mode
)
1010 CASE_SEPARATORS
: /* Not a repeat count. */
1020 if (convert_integer (dtp
, -1, 0))
1023 /* Get the real integer. */
1025 if ((c
= next_char (dtp
)) == EOF
)
1033 if (!dtp
->u
.p
.namelist_mode
)
1037 unget_char (dtp
, c
);
1038 eat_separator (dtp
);
1043 /* Fall through... */
1046 c
= next_char (dtp
);
1057 c
= next_char (dtp
);
1065 if (!dtp
->u
.p
.namelist_mode
)
1079 if (nml_bad_return (dtp
, c
))
1092 snprintf (message
, MSGLEN
, "Bad integer for item %d in list input",
1093 dtp
->u
.p
.item_count
);
1095 generate_error (&dtp
->common
, LIBERROR_READ_VALUE
, message
);
1100 unget_char (dtp
, c
);
1101 eat_separator (dtp
);
1103 push_char (dtp
, '\0');
1104 if (convert_integer (dtp
, length
, negative
))
1111 dtp
->u
.p
.saved_type
= BT_INTEGER
;
1115 /* Read a character variable. */
1118 read_character (st_parameter_dt
*dtp
, int length
__attribute__ ((unused
)))
1120 char quote
, message
[MSGLEN
];
1123 quote
= ' '; /* Space means no quote character. */
1125 if ((c
= next_char (dtp
)) == EOF
)
1135 unget_char (dtp
, c
); /* NULL value. */
1136 eat_separator (dtp
);
1145 if (dtp
->u
.p
.namelist_mode
)
1147 unget_char (dtp
, c
);
1154 /* Deal with a possible repeat count. */
1158 c
= next_char (dtp
);
1167 unget_char (dtp
, c
);
1168 goto done
; /* String was only digits! */
1171 push_char (dtp
, '\0');
1176 goto get_string
; /* Not a repeat count after all. */
1181 if (convert_integer (dtp
, -1, 0))
1184 /* Now get the real string. */
1186 if ((c
= next_char (dtp
)) == EOF
)
1191 unget_char (dtp
, c
); /* Repeated NULL values. */
1192 eat_separator (dtp
);
1209 if ((c
= next_char (dtp
)) == EOF
)
1221 /* See if we have a doubled quote character or the end of
1224 if ((c
= next_char (dtp
)) == EOF
)
1228 push_char (dtp
, quote
);
1232 unget_char (dtp
, c
);
1238 unget_char (dtp
, c
);
1242 if (c
!= '\n' && c
!= '\r')
1252 /* At this point, we have to have a separator, or else the string is
1255 c
= next_char (dtp
);
1257 if (is_separator (c
) || c
== EOF
)
1259 unget_char (dtp
, c
);
1260 eat_separator (dtp
);
1261 dtp
->u
.p
.saved_type
= BT_CHARACTER
;
1266 snprintf (message
, MSGLEN
, "Invalid string input in item %d",
1267 dtp
->u
.p
.item_count
);
1268 generate_error (&dtp
->common
, LIBERROR_READ_VALUE
, message
);
1280 /* Parse a component of a complex constant or a real number that we
1281 are sure is already there. This is a straight real number parser. */
1284 parse_real (st_parameter_dt
*dtp
, void *buffer
, int length
)
1286 char message
[MSGLEN
];
1289 if ((c
= next_char (dtp
)) == EOF
)
1292 if (c
== '-' || c
== '+')
1295 if ((c
= next_char (dtp
)) == EOF
)
1299 if (c
== ',' && dtp
->u
.p
.current_unit
->decimal_status
== DECIMAL_COMMA
)
1302 if (!isdigit (c
) && c
!= '.')
1304 if (c
== 'i' || c
== 'I' || c
== 'n' || c
== 'N')
1312 seen_dp
= (c
== '.') ? 1 : 0;
1316 if ((c
= next_char (dtp
)) == EOF
)
1318 if (c
== ',' && dtp
->u
.p
.current_unit
->decimal_status
== DECIMAL_COMMA
)
1340 push_char (dtp
, 'e');
1345 push_char (dtp
, 'e');
1347 if ((c
= next_char (dtp
)) == EOF
)
1352 if (!dtp
->u
.p
.namelist_mode
)
1365 if ((c
= next_char (dtp
)) == EOF
)
1367 if (c
!= '-' && c
!= '+')
1368 push_char (dtp
, '+');
1372 c
= next_char (dtp
);
1378 /* Extension: allow default exponent of 0 when omitted. */
1379 if (dtp
->common
.flags
& IOPARM_DT_DEFAULT_EXP
)
1381 push_char (dtp
, '0');
1392 if ((c
= next_char (dtp
)) == EOF
)
1401 if (!dtp
->u
.p
.namelist_mode
)
1406 unget_char (dtp
, c
);
1415 unget_char (dtp
, c
);
1416 push_char (dtp
, '\0');
1418 m
= convert_real (dtp
, buffer
, dtp
->u
.p
.saved_string
, length
);
1424 unget_char (dtp
, c
);
1425 push_char (dtp
, '\0');
1427 m
= convert_infnan (dtp
, buffer
, dtp
->u
.p
.saved_string
, length
);
1433 /* Match INF and Infinity. */
1434 if ((c
== 'i' || c
== 'I')
1435 && ((c
= next_char (dtp
)) == 'n' || c
== 'N')
1436 && ((c
= next_char (dtp
)) == 'f' || c
== 'F'))
1438 c
= next_char (dtp
);
1439 if ((c
!= 'i' && c
!= 'I')
1440 || ((c
== 'i' || c
== 'I')
1441 && ((c
= next_char (dtp
)) == 'n' || c
== 'N')
1442 && ((c
= next_char (dtp
)) == 'i' || c
== 'I')
1443 && ((c
= next_char (dtp
)) == 't' || c
== 'T')
1444 && ((c
= next_char (dtp
)) == 'y' || c
== 'Y')
1445 && (c
= next_char (dtp
))))
1447 if (is_separator (c
) || (c
== EOF
))
1448 unget_char (dtp
, c
);
1449 push_char (dtp
, 'i');
1450 push_char (dtp
, 'n');
1451 push_char (dtp
, 'f');
1455 else if (((c
= next_char (dtp
)) == 'a' || c
== 'A')
1456 && ((c
= next_char (dtp
)) == 'n' || c
== 'N')
1457 && (c
= next_char (dtp
)))
1459 if (is_separator (c
) || (c
== EOF
))
1460 unget_char (dtp
, c
);
1461 push_char (dtp
, 'n');
1462 push_char (dtp
, 'a');
1463 push_char (dtp
, 'n');
1465 /* Match "NAN(alphanum)". */
1468 for ( ; c
!= ')'; c
= next_char (dtp
))
1469 if (is_separator (c
))
1472 c
= next_char (dtp
);
1473 if (is_separator (c
) || (c
== EOF
))
1474 unget_char (dtp
, c
);
1481 if (nml_bad_return (dtp
, c
))
1496 snprintf (message
, MSGLEN
, "Bad complex floating point "
1497 "number for item %d", dtp
->u
.p
.item_count
);
1499 generate_error (&dtp
->common
, LIBERROR_READ_VALUE
, message
);
1505 /* Reading a complex number is straightforward because we can tell
1506 what it is right away. */
1509 read_complex (st_parameter_dt
*dtp
, void *dest
, int kind
, size_t size
)
1511 char message
[MSGLEN
];
1514 if (parse_repeat (dtp
))
1517 c
= next_char (dtp
);
1524 if (!dtp
->u
.p
.namelist_mode
)
1529 unget_char (dtp
, c
);
1530 eat_separator (dtp
);
1539 c
= next_char (dtp
);
1540 if (c
== '\n' || c
== '\r')
1543 unget_char (dtp
, c
);
1545 if (parse_real (dtp
, dest
, kind
))
1550 c
= next_char (dtp
);
1551 if (c
== '\n' || c
== '\r')
1554 unget_char (dtp
, c
);
1557 != (dtp
->u
.p
.current_unit
->decimal_status
== DECIMAL_POINT
? ',' : ';'))
1562 c
= next_char (dtp
);
1563 if (c
== '\n' || c
== '\r')
1566 unget_char (dtp
, c
);
1568 if (parse_real (dtp
, dest
+ size
/ 2, kind
))
1573 c
= next_char (dtp
);
1574 if (c
== '\n' || c
== '\r')
1577 unget_char (dtp
, c
);
1579 if (next_char (dtp
) != ')')
1582 c
= next_char (dtp
);
1583 if (!is_separator (c
) && (c
!= EOF
))
1586 unget_char (dtp
, c
);
1587 eat_separator (dtp
);
1590 dtp
->u
.p
.saved_type
= BT_COMPLEX
;
1595 if (nml_bad_return (dtp
, c
))
1608 snprintf (message
, MSGLEN
, "Bad complex value in item %d of list input",
1609 dtp
->u
.p
.item_count
);
1611 generate_error (&dtp
->common
, LIBERROR_READ_VALUE
, message
);
1615 /* Parse a real number with a possible repeat count. */
1618 read_real (st_parameter_dt
*dtp
, void *dest
, int length
)
1620 char message
[MSGLEN
];
1627 c
= next_char (dtp
);
1628 if (c
== ',' && dtp
->u
.p
.current_unit
->decimal_status
== DECIMAL_COMMA
)
1646 if (!dtp
->u
.p
.namelist_mode
)
1650 unget_char (dtp
, c
); /* Single null. */
1651 eat_separator (dtp
);
1664 /* Get the digit string that might be a repeat count. */
1668 c
= next_char (dtp
);
1669 if (c
== ',' && dtp
->u
.p
.current_unit
->decimal_status
== DECIMAL_COMMA
)
1695 push_char (dtp
, 'e');
1697 c
= next_char (dtp
);
1701 push_char (dtp
, '\0');
1705 if (!dtp
->u
.p
.namelist_mode
)
1710 if (c
!= '\n' && c
!= ',' && c
!= '\r' && c
!= ';')
1711 unget_char (dtp
, c
);
1720 if (convert_integer (dtp
, -1, 0))
1723 /* Now get the number itself. */
1725 if ((c
= next_char (dtp
)) == EOF
)
1727 if (is_separator (c
))
1728 { /* Repeated null value. */
1729 unget_char (dtp
, c
);
1730 eat_separator (dtp
);
1734 if (c
!= '-' && c
!= '+')
1735 push_char (dtp
, '+');
1740 if ((c
= next_char (dtp
)) == EOF
)
1744 if (c
== ',' && dtp
->u
.p
.current_unit
->decimal_status
== DECIMAL_COMMA
)
1747 if (!isdigit (c
) && c
!= '.')
1749 if (c
== 'i' || c
== 'I' || c
== 'n' || c
== 'N')
1768 c
= next_char (dtp
);
1769 if (c
== ',' && dtp
->u
.p
.current_unit
->decimal_status
== DECIMAL_COMMA
)
1778 if (!dtp
->u
.p
.namelist_mode
)
1803 push_char (dtp
, 'e');
1805 c
= next_char (dtp
);
1814 push_char (dtp
, 'e');
1816 if ((c
= next_char (dtp
)) == EOF
)
1818 if (c
!= '+' && c
!= '-')
1819 push_char (dtp
, '+');
1823 c
= next_char (dtp
);
1829 /* Extension: allow default exponent of 0 when omitted. */
1830 if (dtp
->common
.flags
& IOPARM_DT_DEFAULT_EXP
)
1832 push_char (dtp
, '0');
1843 c
= next_char (dtp
);
1852 if (!dtp
->u
.p
.namelist_mode
)
1865 unget_char (dtp
, c
);
1866 eat_separator (dtp
);
1867 push_char (dtp
, '\0');
1868 if (convert_real (dtp
, dest
, dtp
->u
.p
.saved_string
, length
))
1875 dtp
->u
.p
.saved_type
= BT_REAL
;
1879 l_push_char (dtp
, c
);
1882 /* Match INF and Infinity. */
1883 if (c
== 'i' || c
== 'I')
1885 c
= next_char (dtp
);
1886 l_push_char (dtp
, c
);
1887 if (c
!= 'n' && c
!= 'N')
1889 c
= next_char (dtp
);
1890 l_push_char (dtp
, c
);
1891 if (c
!= 'f' && c
!= 'F')
1893 c
= next_char (dtp
);
1894 l_push_char (dtp
, c
);
1895 if (!is_separator (c
) && (c
!= EOF
))
1897 if (c
!= 'i' && c
!= 'I')
1899 c
= next_char (dtp
);
1900 l_push_char (dtp
, c
);
1901 if (c
!= 'n' && c
!= 'N')
1903 c
= next_char (dtp
);
1904 l_push_char (dtp
, c
);
1905 if (c
!= 'i' && c
!= 'I')
1907 c
= next_char (dtp
);
1908 l_push_char (dtp
, c
);
1909 if (c
!= 't' && c
!= 'T')
1911 c
= next_char (dtp
);
1912 l_push_char (dtp
, c
);
1913 if (c
!= 'y' && c
!= 'Y')
1915 c
= next_char (dtp
);
1916 l_push_char (dtp
, c
);
1922 c
= next_char (dtp
);
1923 l_push_char (dtp
, c
);
1924 if (c
!= 'a' && c
!= 'A')
1926 c
= next_char (dtp
);
1927 l_push_char (dtp
, c
);
1928 if (c
!= 'n' && c
!= 'N')
1930 c
= next_char (dtp
);
1931 l_push_char (dtp
, c
);
1933 /* Match NAN(alphanum). */
1936 for (c
= next_char (dtp
); c
!= ')'; c
= next_char (dtp
))
1937 if (is_separator (c
))
1940 l_push_char (dtp
, c
);
1942 l_push_char (dtp
, ')');
1943 c
= next_char (dtp
);
1944 l_push_char (dtp
, c
);
1948 if (!is_separator (c
) && (c
!= EOF
))
1951 if (dtp
->u
.p
.namelist_mode
)
1953 if (c
== ' ' || c
=='\n' || c
== '\r')
1957 if ((c
= next_char (dtp
)) == EOF
)
1960 while (c
== ' ' || c
=='\n' || c
== '\r');
1962 l_push_char (dtp
, c
);
1971 push_char (dtp
, 'i');
1972 push_char (dtp
, 'n');
1973 push_char (dtp
, 'f');
1977 push_char (dtp
, 'n');
1978 push_char (dtp
, 'a');
1979 push_char (dtp
, 'n');
1983 unget_char (dtp
, c
);
1984 eat_separator (dtp
);
1985 push_char (dtp
, '\0');
1986 if (convert_infnan (dtp
, dest
, dtp
->u
.p
.saved_string
, length
))
1990 dtp
->u
.p
.saved_type
= BT_REAL
;
1994 if (dtp
->u
.p
.namelist_mode
)
1996 dtp
->u
.p
.nml_read_error
= 1;
1997 dtp
->u
.p
.line_buffer_enabled
= 1;
1998 dtp
->u
.p
.line_buffer_pos
= 0;
2004 if (nml_bad_return (dtp
, c
))
2019 snprintf (message
, MSGLEN
, "Bad real number in item %d of list input",
2020 dtp
->u
.p
.item_count
);
2022 generate_error (&dtp
->common
, LIBERROR_READ_VALUE
, message
);
2026 /* Check the current type against the saved type to make sure they are
2027 compatible. Returns nonzero if incompatible. */
2030 check_type (st_parameter_dt
*dtp
, bt type
, int kind
)
2032 char message
[MSGLEN
];
2034 if (dtp
->u
.p
.saved_type
!= BT_UNKNOWN
&& dtp
->u
.p
.saved_type
!= type
)
2036 snprintf (message
, MSGLEN
, "Read type %s where %s was expected for item %d",
2037 type_name (dtp
->u
.p
.saved_type
), type_name (type
),
2038 dtp
->u
.p
.item_count
);
2040 generate_error (&dtp
->common
, LIBERROR_READ_VALUE
, message
);
2044 if (dtp
->u
.p
.saved_type
== BT_UNKNOWN
|| dtp
->u
.p
.saved_type
== BT_CHARACTER
)
2047 if ((type
!= BT_COMPLEX
&& dtp
->u
.p
.saved_length
!= kind
)
2048 || (type
== BT_COMPLEX
&& dtp
->u
.p
.saved_length
!= kind
*2))
2050 snprintf (message
, MSGLEN
,
2051 "Read kind %d %s where kind %d is required for item %d",
2052 type
== BT_COMPLEX
? dtp
->u
.p
.saved_length
/ 2
2053 : dtp
->u
.p
.saved_length
,
2054 type_name (dtp
->u
.p
.saved_type
), kind
,
2055 dtp
->u
.p
.item_count
);
2057 generate_error (&dtp
->common
, LIBERROR_READ_VALUE
, message
);
2065 /* Initialize the function pointers to select the correct versions of
2066 next_char and push_char depending on what we are doing. */
2069 set_workers (st_parameter_dt
*dtp
)
2071 if (dtp
->u
.p
.current_unit
->flags
.encoding
== ENCODING_UTF8
)
2073 dtp
->u
.p
.current_unit
->next_char_fn_ptr
= &next_char_utf8
;
2074 dtp
->u
.p
.current_unit
->push_char_fn_ptr
= &push_char4
;
2076 else if (is_internal_unit (dtp
))
2078 dtp
->u
.p
.current_unit
->next_char_fn_ptr
= &next_char_internal
;
2079 dtp
->u
.p
.current_unit
->push_char_fn_ptr
= &push_char_default
;
2083 dtp
->u
.p
.current_unit
->next_char_fn_ptr
= &next_char_default
;
2084 dtp
->u
.p
.current_unit
->push_char_fn_ptr
= &push_char_default
;
2089 /* Top level data transfer subroutine for list reads. Because we have
2090 to deal with repeat counts, the data item is always saved after
2091 reading, usually in the dtp->u.p.value[] array. If a repeat count is
2092 greater than one, we copy the data item multiple times. */
2095 list_formatted_read_scalar (st_parameter_dt
*dtp
, bt type
, void *p
,
2096 int kind
, size_t size
)
2102 /* Set the next_char and push_char worker functions. */
2105 if (dtp
->u
.p
.first_item
)
2107 dtp
->u
.p
.first_item
= 0;
2108 dtp
->u
.p
.input_complete
= 0;
2109 dtp
->u
.p
.repeat_count
= 1;
2110 dtp
->u
.p
.at_eol
= 0;
2112 if ((c
= eat_spaces (dtp
)) == EOF
)
2117 if (is_separator (c
))
2119 /* Found a null value. */
2120 dtp
->u
.p
.repeat_count
= 0;
2121 eat_separator (dtp
);
2123 /* Set end-of-line flag. */
2124 if (c
== '\n' || c
== '\r')
2126 dtp
->u
.p
.at_eol
= 1;
2127 if (finish_separator (dtp
) == LIBERROR_END
)
2139 if (dtp
->u
.p
.repeat_count
> 0)
2141 if (check_type (dtp
, type
, kind
))
2146 if (dtp
->u
.p
.input_complete
)
2149 if (dtp
->u
.p
.at_eol
)
2150 finish_separator (dtp
);
2154 /* Trailing spaces prior to end of line. */
2155 if (dtp
->u
.p
.at_eol
)
2156 finish_separator (dtp
);
2159 dtp
->u
.p
.saved_type
= BT_UNKNOWN
;
2160 dtp
->u
.p
.repeat_count
= 1;
2166 read_integer (dtp
, kind
);
2169 read_logical (dtp
, kind
);
2172 read_character (dtp
, kind
);
2175 read_real (dtp
, p
, kind
);
2176 /* Copy value back to temporary if needed. */
2177 if (dtp
->u
.p
.repeat_count
> 0)
2178 memcpy (dtp
->u
.p
.value
, p
, size
);
2181 read_complex (dtp
, p
, kind
, size
);
2182 /* Copy value back to temporary if needed. */
2183 if (dtp
->u
.p
.repeat_count
> 0)
2184 memcpy (dtp
->u
.p
.value
, p
, size
);
2188 int unit
= dtp
->u
.p
.current_unit
->unit_number
;
2189 char iotype
[] = "LISTDIRECTED";
2190 gfc_charlen_type iotype_len
= 12;
2191 char tmp_iomsg
[IOMSG_LEN
] = "";
2193 gfc_charlen_type child_iomsg_len
;
2195 int *child_iostat
= NULL
;
2198 GFC_DESCRIPTOR_DATA(&vlist
) = NULL
;
2199 GFC_DIMENSION_SET(vlist
.dim
[0],1, 0, 0);
2201 /* Set iostat, intent(out). */
2203 child_iostat
= (dtp
->common
.flags
& IOPARM_HAS_IOSTAT
) ?
2204 dtp
->common
.iostat
: &noiostat
;
2206 /* Set iomsge, intent(inout). */
2207 if (dtp
->common
.flags
& IOPARM_HAS_IOMSG
)
2209 child_iomsg
= dtp
->common
.iomsg
;
2210 child_iomsg_len
= dtp
->common
.iomsg_len
;
2214 child_iomsg
= tmp_iomsg
;
2215 child_iomsg_len
= IOMSG_LEN
;
2218 /* Call the user defined formatted READ procedure. */
2219 dtp
->u
.p
.current_unit
->child_dtio
++;
2220 dtp
->u
.p
.fdtio_ptr (p
, &unit
, iotype
, &vlist
,
2221 child_iostat
, child_iomsg
,
2222 iotype_len
, child_iomsg_len
);
2223 dtp
->u
.p
.child_saved_iostat
= *child_iostat
;
2224 dtp
->u
.p
.current_unit
->child_dtio
--;
2228 internal_error (&dtp
->common
, "Bad type for list read");
2231 if (dtp
->u
.p
.saved_type
!= BT_CHARACTER
&& dtp
->u
.p
.saved_type
!= BT_UNKNOWN
)
2232 dtp
->u
.p
.saved_length
= size
;
2234 if ((dtp
->common
.flags
& IOPARM_LIBRETURN_MASK
) != IOPARM_LIBRETURN_OK
)
2238 switch (dtp
->u
.p
.saved_type
)
2242 if (dtp
->u
.p
.repeat_count
> 0)
2243 memcpy (p
, dtp
->u
.p
.value
, size
);
2248 memcpy (p
, dtp
->u
.p
.value
, size
);
2252 if (dtp
->u
.p
.saved_string
)
2254 m
= ((int) size
< dtp
->u
.p
.saved_used
)
2255 ? (int) size
: dtp
->u
.p
.saved_used
;
2257 q
= (gfc_char4_t
*) p
;
2258 r
= (gfc_char4_t
*) dtp
->u
.p
.saved_string
;
2259 if (dtp
->u
.p
.current_unit
->flags
.encoding
== ENCODING_UTF8
)
2260 for (i
= 0; i
< m
; i
++)
2265 memcpy (p
, dtp
->u
.p
.saved_string
, m
);
2267 for (i
= 0; i
< m
; i
++)
2272 /* Just delimiters encountered, nothing to copy but SPACE. */
2278 memset (((char *) p
) + m
, ' ', size
- m
);
2281 q
= (gfc_char4_t
*) p
;
2282 for (i
= m
; i
< (int) size
; i
++)
2283 q
[i
] = (unsigned char) ' ';
2292 internal_error (&dtp
->common
, "Bad type for list read");
2295 if (--dtp
->u
.p
.repeat_count
<= 0)
2299 /* err may have been set above from finish_separator, so if it is set
2300 trigger the hit_eof. The hit_eof will set bits in common.flags. */
2301 if (err
== LIBERROR_END
)
2306 /* Now we check common.flags for any errors that could have occurred in
2307 a READ elsewhere such as in read_integer. */
2308 err
= dtp
->common
.flags
& IOPARM_LIBRETURN_MASK
;
2309 fbuf_flush_list (dtp
->u
.p
.current_unit
, LIST_READING
);
2315 list_formatted_read (st_parameter_dt
*dtp
, bt type
, void *p
, int kind
,
2316 size_t size
, size_t nelems
)
2320 size_t stride
= type
== BT_CHARACTER
?
2321 size
* GFC_SIZE_OF_CHAR_KIND(kind
) : size
;
2326 /* Big loop over all the elements. */
2327 for (elem
= 0; elem
< nelems
; elem
++)
2329 dtp
->u
.p
.item_count
++;
2330 err
= list_formatted_read_scalar (dtp
, type
, tmp
+ stride
*elem
,
2338 /* Finish a list read. */
2341 finish_list_read (st_parameter_dt
*dtp
)
2345 fbuf_flush (dtp
->u
.p
.current_unit
, dtp
->u
.p
.mode
);
2347 if (dtp
->u
.p
.at_eol
)
2349 dtp
->u
.p
.at_eol
= 0;
2353 if (!is_internal_unit (dtp
))
2357 /* Set the next_char and push_char worker functions. */
2360 if (likely (dtp
->u
.p
.child_saved_iostat
== LIBERROR_OK
))
2362 c
= next_char (dtp
);
2380 void namelist_read (st_parameter_dt *dtp)
2382 static void nml_match_name (char *name, int len)
2383 static int nml_query (st_parameter_dt *dtp)
2384 static int nml_get_obj_data (st_parameter_dt *dtp,
2385 namelist_info **prev_nl, char *, size_t)
2387 static void nml_untouch_nodes (st_parameter_dt *dtp)
2388 static namelist_info *find_nml_node (st_parameter_dt *dtp,
2390 static int nml_parse_qualifier(descriptor_dimension *ad,
2391 array_loop_spec *ls, int rank, char *)
2392 static void nml_touch_nodes (namelist_info *nl)
2393 static int nml_read_obj (namelist_info *nl, index_type offset,
2394 namelist_info **prev_nl, char *, size_t,
2395 index_type clow, index_type chigh)
2399 /* Inputs a rank-dimensional qualifier, which can contain
2400 singlets, doublets, triplets or ':' with the standard meanings. */
2403 nml_parse_qualifier (st_parameter_dt
*dtp
, descriptor_dimension
*ad
,
2404 array_loop_spec
*ls
, int rank
, bt nml_elem_type
,
2405 char *parse_err_msg
, size_t parse_err_msg_size
,
2412 int is_array_section
, is_char
;
2416 is_array_section
= 0;
2417 dtp
->u
.p
.expanded_read
= 0;
2419 /* See if this is a character substring qualifier we are looking for. */
2426 /* The next character in the stream should be the '('. */
2428 if ((c
= next_char (dtp
)) == EOF
)
2431 /* Process the qualifier, by dimension and triplet. */
2433 for (dim
=0; dim
< rank
; dim
++ )
2435 for (indx
=0; indx
<3; indx
++)
2441 /* Process a potential sign. */
2442 if ((c
= next_char (dtp
)) == EOF
)
2454 unget_char (dtp
, c
);
2458 /* Process characters up to the next ':' , ',' or ')'. */
2461 c
= next_char (dtp
);
2468 is_array_section
= 1;
2472 if ((c
==',' && dim
== rank
-1)
2473 || (c
==')' && dim
< rank
-1))
2476 snprintf (parse_err_msg
, parse_err_msg_size
,
2477 "Bad substring qualifier");
2479 snprintf (parse_err_msg
, parse_err_msg_size
,
2480 "Bad number of index fields");
2489 case ' ': case '\t': case '\r': case '\n':
2495 snprintf (parse_err_msg
, parse_err_msg_size
,
2496 "Bad character in substring qualifier");
2498 snprintf (parse_err_msg
, parse_err_msg_size
,
2499 "Bad character in index");
2503 if ((c
== ',' || c
== ')') && indx
== 0
2504 && dtp
->u
.p
.saved_string
== 0)
2507 snprintf (parse_err_msg
, parse_err_msg_size
,
2508 "Null substring qualifier");
2510 snprintf (parse_err_msg
, parse_err_msg_size
,
2511 "Null index field");
2515 if ((c
== ':' && indx
== 1 && dtp
->u
.p
.saved_string
== 0)
2516 || (indx
== 2 && dtp
->u
.p
.saved_string
== 0))
2519 snprintf (parse_err_msg
, parse_err_msg_size
,
2520 "Bad substring qualifier");
2522 snprintf (parse_err_msg
, parse_err_msg_size
,
2523 "Bad index triplet");
2527 if (is_char
&& !is_array_section
)
2529 snprintf (parse_err_msg
, parse_err_msg_size
,
2530 "Missing colon in substring qualifier");
2534 /* If '( : ? )' or '( ? : )' break and flag read failure. */
2536 if ((c
== ':' && indx
== 0 && dtp
->u
.p
.saved_string
== 0)
2537 || (indx
==1 && dtp
->u
.p
.saved_string
== 0))
2543 /* Now read the index. */
2544 if (convert_integer (dtp
, sizeof(index_type
), neg
))
2547 snprintf (parse_err_msg
, parse_err_msg_size
,
2548 "Bad integer substring qualifier");
2550 snprintf (parse_err_msg
, parse_err_msg_size
,
2551 "Bad integer in index");
2557 /* Feed the index values to the triplet arrays. */
2561 memcpy (&ls
[dim
].start
, dtp
->u
.p
.value
, sizeof(index_type
));
2563 memcpy (&ls
[dim
].end
, dtp
->u
.p
.value
, sizeof(index_type
));
2565 memcpy (&ls
[dim
].step
, dtp
->u
.p
.value
, sizeof(index_type
));
2568 /* Singlet or doublet indices. */
2569 if (c
==',' || c
==')')
2573 memcpy (&ls
[dim
].start
, dtp
->u
.p
.value
, sizeof(index_type
));
2575 /* If -std=f95/2003 or an array section is specified,
2576 do not allow excess data to be processed. */
2577 if (is_array_section
== 1
2578 || !(compile_options
.allow_std
& GFC_STD_GNU
)
2579 || nml_elem_type
== BT_DERIVED
)
2580 ls
[dim
].end
= ls
[dim
].start
;
2582 dtp
->u
.p
.expanded_read
= 1;
2585 /* Check for non-zero rank. */
2586 if (is_array_section
== 1 && ls
[dim
].start
!= ls
[dim
].end
)
2593 if (is_array_section
== 1 && dtp
->u
.p
.expanded_read
== 1)
2596 dtp
->u
.p
.expanded_read
= 0;
2597 for (i
= 0; i
< dim
; i
++)
2598 ls
[i
].end
= ls
[i
].start
;
2601 /* Check the values of the triplet indices. */
2602 if ((ls
[dim
].start
> GFC_DIMENSION_UBOUND(ad
[dim
]))
2603 || (ls
[dim
].start
< GFC_DIMENSION_LBOUND(ad
[dim
]))
2604 || (ls
[dim
].end
> GFC_DIMENSION_UBOUND(ad
[dim
]))
2605 || (ls
[dim
].end
< GFC_DIMENSION_LBOUND(ad
[dim
])))
2608 snprintf (parse_err_msg
, parse_err_msg_size
,
2609 "Substring out of range");
2611 snprintf (parse_err_msg
, parse_err_msg_size
,
2612 "Index %d out of range", dim
+ 1);
2616 if (((ls
[dim
].end
- ls
[dim
].start
) * ls
[dim
].step
< 0)
2617 || (ls
[dim
].step
== 0))
2619 snprintf (parse_err_msg
, parse_err_msg_size
,
2620 "Bad range in index %d", dim
+ 1);
2624 /* Initialise the loop index counter. */
2625 ls
[dim
].idx
= ls
[dim
].start
;
2632 /* The EOF error message is issued by hit_eof. Return true so that the
2633 caller does not use parse_err_msg and parse_err_msg_size to generate
2634 an unrelated error message. */
2638 dtp
->u
.p
.input_complete
= 1;
2646 extended_look_ahead (char *p
, char *q
)
2650 /* Scan ahead to find a '%' in the p string. */
2651 for(r
= p
, s
= q
; *r
&& *s
; s
++)
2652 if ((*s
== '%' || *s
== '+') && strcmp (r
+ 1, s
+ 1) == 0)
2659 strcmp_extended_type (char *p
, char *q
)
2663 for (r
= p
, s
= q
; *r
&& *s
; r
++, s
++)
2667 if (*r
== '%' && *s
== '+' && extended_look_ahead (r
, s
))
2676 static namelist_info
*
2677 find_nml_node (st_parameter_dt
*dtp
, char *var_name
)
2679 namelist_info
*t
= dtp
->u
.p
.ionml
;
2682 if (strcmp (var_name
, t
->var_name
) == 0)
2687 if (strcmp_extended_type (var_name
, t
->var_name
))
2697 /* Visits all the components of a derived type that have
2698 not explicitly been identified in the namelist input.
2699 touched is set and the loop specification initialised
2700 to default values */
2703 nml_touch_nodes (namelist_info
*nl
)
2705 index_type len
= strlen (nl
->var_name
) + 1;
2707 char *ext_name
= xmalloc (len
+ 1);
2708 memcpy (ext_name
, nl
->var_name
, len
-1);
2709 memcpy (ext_name
+ len
- 1, "%", 2);
2710 for (nl
= nl
->next
; nl
; nl
= nl
->next
)
2712 if (strncmp (nl
->var_name
, ext_name
, len
) == 0)
2715 for (dim
=0; dim
< nl
->var_rank
; dim
++)
2717 nl
->ls
[dim
].step
= 1;
2718 nl
->ls
[dim
].end
= GFC_DESCRIPTOR_UBOUND(nl
,dim
);
2719 nl
->ls
[dim
].start
= GFC_DESCRIPTOR_LBOUND(nl
,dim
);
2720 nl
->ls
[dim
].idx
= nl
->ls
[dim
].start
;
2730 /* Resets touched for the entire list of nml_nodes, ready for a
2734 nml_untouch_nodes (st_parameter_dt
*dtp
)
2737 for (t
= dtp
->u
.p
.ionml
; t
; t
= t
->next
)
2742 /* Attempts to input name to namelist name. Returns
2743 dtp->u.p.nml_read_error = 1 on no match. */
2746 nml_match_name (st_parameter_dt
*dtp
, const char *name
, index_type len
)
2751 dtp
->u
.p
.nml_read_error
= 0;
2752 for (i
= 0; i
< len
; i
++)
2754 c
= next_char (dtp
);
2755 if (c
== EOF
|| (tolower (c
) != tolower (name
[i
])))
2757 dtp
->u
.p
.nml_read_error
= 1;
2763 /* If the namelist read is from stdin, output the current state of the
2764 namelist to stdout. This is used to implement the non-standard query
2765 features, ? and =?. If c == '=' the full namelist is printed. Otherwise
2766 the names alone are printed. */
2769 nml_query (st_parameter_dt
*dtp
, char c
)
2771 gfc_unit
*temp_unit
;
2776 static const index_type endlen
= 2;
2777 static const char endl
[] = "\r\n";
2778 static const char nmlend
[] = "&end\r\n";
2780 static const index_type endlen
= 1;
2781 static const char endl
[] = "\n";
2782 static const char nmlend
[] = "&end\n";
2785 if (dtp
->u
.p
.current_unit
->unit_number
!= options
.stdin_unit
)
2788 /* Store the current unit and transfer to stdout. */
2790 temp_unit
= dtp
->u
.p
.current_unit
;
2791 dtp
->u
.p
.current_unit
= find_unit (options
.stdout_unit
);
2793 if (dtp
->u
.p
.current_unit
)
2795 dtp
->u
.p
.mode
= WRITING
;
2796 next_record (dtp
, 0);
2798 /* Write the namelist in its entirety. */
2801 namelist_write (dtp
);
2803 /* Or write the list of names. */
2807 /* "&namelist_name\n" */
2809 len
= dtp
->namelist_name_len
;
2810 p
= write_block (dtp
, len
- 1 + endlen
);
2814 memcpy ((char*)(p
+ 1), dtp
->namelist_name
, len
);
2815 memcpy ((char*)(p
+ len
+ 1), &endl
, endlen
);
2816 for (nl
= dtp
->u
.p
.ionml
; nl
; nl
= nl
->next
)
2820 len
= strlen (nl
->var_name
);
2821 p
= write_block (dtp
, len
+ endlen
);
2825 memcpy ((char*)(p
+ 1), nl
->var_name
, len
);
2826 memcpy ((char*)(p
+ len
+ 1), &endl
, endlen
);
2831 p
= write_block (dtp
, endlen
+ 4);
2834 memcpy (p
, &nmlend
, endlen
+ 4);
2837 /* Flush the stream to force immediate output. */
2839 fbuf_flush (dtp
->u
.p
.current_unit
, WRITING
);
2840 sflush (dtp
->u
.p
.current_unit
->s
);
2841 unlock_unit (dtp
->u
.p
.current_unit
);
2846 /* Restore the current unit. */
2848 dtp
->u
.p
.current_unit
= temp_unit
;
2849 dtp
->u
.p
.mode
= READING
;
2853 /* Reads and stores the input for the namelist object nl. For an array,
2854 the function loops over the ranges defined by the loop specification.
2855 This default to all the data or to the specification from a qualifier.
2856 nml_read_obj recursively calls itself to read derived types. It visits
2857 all its own components but only reads data for those that were touched
2858 when the name was parsed. If a read error is encountered, an attempt is
2859 made to return to read a new object name because the standard allows too
2860 little data to be available. On the other hand, too much data is an
2864 nml_read_obj (st_parameter_dt
*dtp
, namelist_info
*nl
, index_type offset
,
2865 namelist_info
**pprev_nl
, char *nml_err_msg
,
2866 size_t nml_err_msg_size
, index_type clow
, index_type chigh
)
2875 size_t obj_name_len
;
2879 /* If we have encountered a previous read error or this object has not been
2880 touched in name parsing, just return. */
2881 if (dtp
->u
.p
.nml_read_error
|| !nl
->touched
)
2884 dtp
->u
.p
.item_count
++; /* Used in error messages. */
2885 dtp
->u
.p
.repeat_count
= 0;
2897 dlen
= size_from_real_kind (len
);
2901 dlen
= size_from_complex_kind (len
);
2905 dlen
= chigh
? (chigh
- clow
+ 1) : nl
->string_length
;
2914 /* Update the pointer to the data, using the current index vector */
2916 if ((nl
->type
== BT_DERIVED
|| nl
->type
== BT_CLASS
)
2917 && nl
->dtio_sub
!= NULL
)
2919 pdata
= NULL
; /* Not used under these conidtions. */
2920 if (nl
->type
== BT_CLASS
)
2921 list_obj
.data
= ((gfc_class
*)nl
->mem_pos
)->data
;
2923 list_obj
.data
= (void *)nl
->mem_pos
;
2925 for (dim
= 0; dim
< nl
->var_rank
; dim
++)
2926 list_obj
.data
= list_obj
.data
+ (nl
->ls
[dim
].idx
2927 - GFC_DESCRIPTOR_LBOUND(nl
,dim
))
2928 * GFC_DESCRIPTOR_STRIDE(nl
,dim
) * nl
->size
;
2932 pdata
= (void*)(nl
->mem_pos
+ offset
);
2933 for (dim
= 0; dim
< nl
->var_rank
; dim
++)
2934 pdata
= (void*)(pdata
+ (nl
->ls
[dim
].idx
2935 - GFC_DESCRIPTOR_LBOUND(nl
,dim
))
2936 * GFC_DESCRIPTOR_STRIDE(nl
,dim
) * nl
->size
);
2939 /* If we are finished with the repeat count, try to read next value. */
2942 if (--dtp
->u
.p
.repeat_count
<= 0)
2944 if (dtp
->u
.p
.input_complete
)
2946 if (dtp
->u
.p
.at_eol
)
2947 finish_separator (dtp
);
2948 if (dtp
->u
.p
.input_complete
)
2951 dtp
->u
.p
.saved_type
= BT_UNKNOWN
;
2957 read_integer (dtp
, len
);
2961 read_logical (dtp
, len
);
2965 read_character (dtp
, len
);
2969 /* Need to copy data back from the real location to the temp in
2970 order to handle nml reads into arrays. */
2971 read_real (dtp
, pdata
, len
);
2972 memcpy (dtp
->u
.p
.value
, pdata
, dlen
);
2976 /* Same as for REAL, copy back to temp. */
2977 read_complex (dtp
, pdata
, len
, dlen
);
2978 memcpy (dtp
->u
.p
.value
, pdata
, dlen
);
2983 /* If this object has a User Defined procedure, call it. */
2984 if (nl
->dtio_sub
!= NULL
)
2986 int unit
= dtp
->u
.p
.current_unit
->unit_number
;
2987 char iotype
[] = "NAMELIST";
2988 gfc_charlen_type iotype_len
= 8;
2989 char tmp_iomsg
[IOMSG_LEN
] = "";
2991 gfc_charlen_type child_iomsg_len
;
2993 int *child_iostat
= NULL
;
2995 formatted_dtio dtio_ptr
= (formatted_dtio
)nl
->dtio_sub
;
2997 GFC_DESCRIPTOR_DATA(&vlist
) = NULL
;
2998 GFC_DIMENSION_SET(vlist
.dim
[0],1, 0, 0);
3000 list_obj
.vptr
= nl
->vtable
;
3003 /* Set iostat, intent(out). */
3005 child_iostat
= (dtp
->common
.flags
& IOPARM_HAS_IOSTAT
) ?
3006 dtp
->common
.iostat
: &noiostat
;
3008 /* Set iomsg, intent(inout). */
3009 if (dtp
->common
.flags
& IOPARM_HAS_IOMSG
)
3011 child_iomsg
= dtp
->common
.iomsg
;
3012 child_iomsg_len
= dtp
->common
.iomsg_len
;
3016 child_iomsg
= tmp_iomsg
;
3017 child_iomsg_len
= IOMSG_LEN
;
3020 /* Call the user defined formatted READ procedure. */
3021 dtp
->u
.p
.current_unit
->child_dtio
++;
3022 dtio_ptr ((void *)&list_obj
, &unit
, iotype
, &vlist
,
3023 child_iostat
, child_iomsg
,
3024 iotype_len
, child_iomsg_len
);
3025 dtp
->u
.p
.child_saved_iostat
= *child_iostat
;
3026 dtp
->u
.p
.current_unit
->child_dtio
--;
3030 /* Must be default derived type namelist read. */
3031 obj_name_len
= strlen (nl
->var_name
) + 1;
3032 obj_name
= xmalloc (obj_name_len
+1);
3033 memcpy (obj_name
, nl
->var_name
, obj_name_len
-1);
3034 memcpy (obj_name
+ obj_name_len
- 1, "%", 2);
3036 /* If reading a derived type, disable the expanded read warning
3037 since a single object can have multiple reads. */
3038 dtp
->u
.p
.expanded_read
= 0;
3040 /* Now loop over the components. */
3042 for (cmp
= nl
->next
;
3044 !strncmp (cmp
->var_name
, obj_name
, obj_name_len
);
3047 /* Jump over nested derived type by testing if the potential
3048 component name contains '%'. */
3049 if (strchr (cmp
->var_name
+ obj_name_len
, '%'))
3052 if (!nml_read_obj (dtp
, cmp
, (index_type
)(pdata
- nl
->mem_pos
),
3053 pprev_nl
, nml_err_msg
, nml_err_msg_size
,
3060 if (dtp
->u
.p
.input_complete
)
3071 snprintf (nml_err_msg
, nml_err_msg_size
,
3072 "Bad type for namelist object %s", nl
->var_name
);
3073 internal_error (&dtp
->common
, nml_err_msg
);
3078 /* The standard permits array data to stop short of the number of
3079 elements specified in the loop specification. In this case, we
3080 should be here with dtp->u.p.nml_read_error != 0. Control returns to
3081 nml_get_obj_data and an attempt is made to read object name. */
3084 if (dtp
->u
.p
.nml_read_error
)
3086 dtp
->u
.p
.expanded_read
= 0;
3090 if (dtp
->u
.p
.saved_type
== BT_UNKNOWN
)
3092 dtp
->u
.p
.expanded_read
= 0;
3096 switch (dtp
->u
.p
.saved_type
)
3103 memcpy (pdata
, dtp
->u
.p
.value
, dlen
);
3107 if (dlen
< dtp
->u
.p
.saved_used
)
3109 if (compile_options
.bounds_check
)
3111 snprintf (nml_err_msg
, nml_err_msg_size
,
3112 "Namelist object '%s' truncated on read.",
3114 generate_warning (&dtp
->common
, nml_err_msg
);
3119 m
= dtp
->u
.p
.saved_used
;
3121 if (dtp
->u
.p
.current_unit
->flags
.encoding
== ENCODING_UTF8
)
3123 gfc_char4_t
*q4
, *p4
= pdata
;
3126 q4
= (gfc_char4_t
*) dtp
->u
.p
.saved_string
;
3128 for (i
= 0; i
< m
; i
++)
3131 for (i
= 0; i
< dlen
- m
; i
++)
3132 *p4
++ = (gfc_char4_t
) ' ';
3136 pdata
= (void*)( pdata
+ clow
- 1 );
3137 memcpy (pdata
, dtp
->u
.p
.saved_string
, m
);
3139 memset ((void*)( pdata
+ m
), ' ', dlen
- m
);
3147 /* Warn if a non-standard expanded read occurs. A single read of a
3148 single object is acceptable. If a second read occurs, issue a warning
3149 and set the flag to zero to prevent further warnings. */
3150 if (dtp
->u
.p
.expanded_read
== 2)
3152 notify_std (&dtp
->common
, GFC_STD_GNU
, "Non-standard expanded namelist read.");
3153 dtp
->u
.p
.expanded_read
= 0;
3156 /* If the expanded read warning flag is set, increment it,
3157 indicating that a single read has occurred. */
3158 if (dtp
->u
.p
.expanded_read
>= 1)
3159 dtp
->u
.p
.expanded_read
++;
3161 /* Break out of loop if scalar. */
3165 /* Now increment the index vector. */
3170 for (dim
= 0; dim
< nl
->var_rank
; dim
++)
3172 nl
->ls
[dim
].idx
+= nml_carry
* nl
->ls
[dim
].step
;
3174 if (((nl
->ls
[dim
].step
> 0) && (nl
->ls
[dim
].idx
> nl
->ls
[dim
].end
))
3176 ((nl
->ls
[dim
].step
< 0) && (nl
->ls
[dim
].idx
< nl
->ls
[dim
].end
)))
3178 nl
->ls
[dim
].idx
= nl
->ls
[dim
].start
;
3182 } while (!nml_carry
);
3184 if (dtp
->u
.p
.repeat_count
> 1)
3186 snprintf (nml_err_msg
, nml_err_msg_size
,
3187 "Repeat count too large for namelist object %s", nl
->var_name
);
3197 /* Parses the object name, including array and substring qualifiers. It
3198 iterates over derived type components, touching those components and
3199 setting their loop specifications, if there is a qualifier. If the
3200 object is itself a derived type, its components and subcomponents are
3201 touched. nml_read_obj is called at the end and this reads the data in
3202 the manner specified by the object name. */
3205 nml_get_obj_data (st_parameter_dt
*dtp
, namelist_info
**pprev_nl
,
3206 char *nml_err_msg
, size_t nml_err_msg_size
)
3210 namelist_info
*first_nl
= NULL
;
3211 namelist_info
*root_nl
= NULL
;
3212 int dim
, parsed_rank
;
3213 int component_flag
, qualifier_flag
;
3214 index_type clow
, chigh
;
3215 int non_zero_rank_count
;
3217 /* Look for end of input or object name. If '?' or '=?' are encountered
3218 in stdin, print the node names or the namelist to stdout. */
3220 eat_separator (dtp
);
3221 if (dtp
->u
.p
.input_complete
)
3224 if (dtp
->u
.p
.at_eol
)
3225 finish_separator (dtp
);
3226 if (dtp
->u
.p
.input_complete
)
3229 if ((c
= next_char (dtp
)) == EOF
)
3234 if ((c
= next_char (dtp
)) == EOF
)
3238 snprintf (nml_err_msg
, nml_err_msg_size
,
3239 "namelist read: misplaced = sign");
3242 nml_query (dtp
, '=');
3246 nml_query (dtp
, '?');
3251 nml_match_name (dtp
, "end", 3);
3252 if (dtp
->u
.p
.nml_read_error
)
3254 snprintf (nml_err_msg
, nml_err_msg_size
,
3255 "namelist not terminated with / or &end");
3260 dtp
->u
.p
.input_complete
= 1;
3267 /* Untouch all nodes of the namelist and reset the flags that are set for
3268 derived type components. */
3270 nml_untouch_nodes (dtp
);
3273 non_zero_rank_count
= 0;
3275 /* Get the object name - should '!' and '\n' be permitted separators? */
3283 if (!is_separator (c
))
3284 push_char_default (dtp
, tolower(c
));
3285 if ((c
= next_char (dtp
)) == EOF
)
3288 while (!( c
=='=' || c
==' ' || c
=='\t' || c
=='(' || c
=='%' ));
3290 unget_char (dtp
, c
);
3292 /* Check that the name is in the namelist and get pointer to object.
3293 Three error conditions exist: (i) An attempt is being made to
3294 identify a non-existent object, following a failed data read or
3295 (ii) The object name does not exist or (iii) Too many data items
3296 are present for an object. (iii) gives the same error message
3299 push_char_default (dtp
, '\0');
3303 #define EXT_STACK_SZ 100
3304 char ext_stack
[EXT_STACK_SZ
];
3306 size_t var_len
= strlen (root_nl
->var_name
);
3308 = dtp
->u
.p
.saved_string
? strlen (dtp
->u
.p
.saved_string
) : 0;
3309 size_t ext_size
= var_len
+ saved_len
+ 1;
3311 if (ext_size
> EXT_STACK_SZ
)
3312 ext_name
= xmalloc (ext_size
);
3314 ext_name
= ext_stack
;
3316 memcpy (ext_name
, root_nl
->var_name
, var_len
);
3317 if (dtp
->u
.p
.saved_string
)
3318 memcpy (ext_name
+ var_len
, dtp
->u
.p
.saved_string
, saved_len
);
3319 ext_name
[var_len
+ saved_len
] = '\0';
3320 nl
= find_nml_node (dtp
, ext_name
);
3322 if (ext_size
> EXT_STACK_SZ
)
3326 nl
= find_nml_node (dtp
, dtp
->u
.p
.saved_string
);
3330 if (dtp
->u
.p
.nml_read_error
&& *pprev_nl
)
3331 snprintf (nml_err_msg
, nml_err_msg_size
,
3332 "Bad data for namelist object %s", (*pprev_nl
)->var_name
);
3335 snprintf (nml_err_msg
, nml_err_msg_size
,
3336 "Cannot match namelist object name %s",
3337 dtp
->u
.p
.saved_string
);
3342 /* Get the length, data length, base pointer and rank of the variable.
3343 Set the default loop specification first. */
3345 for (dim
=0; dim
< nl
->var_rank
; dim
++)
3347 nl
->ls
[dim
].step
= 1;
3348 nl
->ls
[dim
].end
= GFC_DESCRIPTOR_UBOUND(nl
,dim
);
3349 nl
->ls
[dim
].start
= GFC_DESCRIPTOR_LBOUND(nl
,dim
);
3350 nl
->ls
[dim
].idx
= nl
->ls
[dim
].start
;
3353 /* Check to see if there is a qualifier: if so, parse it.*/
3355 if (c
== '(' && nl
->var_rank
)
3358 if (!nml_parse_qualifier (dtp
, nl
->dim
, nl
->ls
, nl
->var_rank
,
3359 nl
->type
, nml_err_msg
, nml_err_msg_size
,
3362 char *nml_err_msg_end
= strchr (nml_err_msg
, '\0');
3363 snprintf (nml_err_msg_end
,
3364 nml_err_msg_size
- (nml_err_msg_end
- nml_err_msg
),
3365 " for namelist variable %s", nl
->var_name
);
3368 if (parsed_rank
> 0)
3369 non_zero_rank_count
++;
3373 if ((c
= next_char (dtp
)) == EOF
)
3375 unget_char (dtp
, c
);
3377 else if (nl
->var_rank
> 0)
3378 non_zero_rank_count
++;
3380 /* Now parse a derived type component. The root namelist_info address
3381 is backed up, as is the previous component level. The component flag
3382 is set and the iteration is made by jumping back to get_name. */
3386 if (nl
->type
!= BT_DERIVED
)
3388 snprintf (nml_err_msg
, nml_err_msg_size
,
3389 "Attempt to get derived component for %s", nl
->var_name
);
3393 /* Don't move first_nl further in the list if a qualifier was found. */
3394 if ((*pprev_nl
== NULL
&& !qualifier_flag
) || !component_flag
)
3400 if ((c
= next_char (dtp
)) == EOF
)
3405 /* Parse a character qualifier, if present. chigh = 0 is a default
3406 that signals that the string length = string_length. */
3411 if (c
== '(' && nl
->type
== BT_CHARACTER
)
3413 descriptor_dimension chd
[1] = { {1, clow
, nl
->string_length
} };
3414 array_loop_spec ind
[1] = { {1, clow
, nl
->string_length
, 1} };
3416 if (!nml_parse_qualifier (dtp
, chd
, ind
, -1, nl
->type
,
3417 nml_err_msg
, nml_err_msg_size
, &parsed_rank
))
3419 char *nml_err_msg_end
= strchr (nml_err_msg
, '\0');
3420 snprintf (nml_err_msg_end
,
3421 nml_err_msg_size
- (nml_err_msg_end
- nml_err_msg
),
3422 " for namelist variable %s", nl
->var_name
);
3426 clow
= ind
[0].start
;
3429 if (ind
[0].step
!= 1)
3431 snprintf (nml_err_msg
, nml_err_msg_size
,
3432 "Step not allowed in substring qualifier"
3433 " for namelist object %s", nl
->var_name
);
3437 if ((c
= next_char (dtp
)) == EOF
)
3439 unget_char (dtp
, c
);
3442 /* Make sure no extraneous qualifiers are there. */
3446 snprintf (nml_err_msg
, nml_err_msg_size
,
3447 "Qualifier for a scalar or non-character namelist object %s",
3452 /* Make sure there is no more than one non-zero rank object. */
3453 if (non_zero_rank_count
> 1)
3455 snprintf (nml_err_msg
, nml_err_msg_size
,
3456 "Multiple sub-objects with non-zero rank in namelist object %s",
3458 non_zero_rank_count
= 0;
3462 /* According to the standard, an equal sign MUST follow an object name. The
3463 following is possibly lax - it allows comments, blank lines and so on to
3464 intervene. eat_spaces (dtp); c = next_char (dtp); would be compliant*/
3468 eat_separator (dtp
);
3469 if (dtp
->u
.p
.input_complete
)
3472 if (dtp
->u
.p
.at_eol
)
3473 finish_separator (dtp
);
3474 if (dtp
->u
.p
.input_complete
)
3477 if ((c
= next_char (dtp
)) == EOF
)
3482 snprintf (nml_err_msg
, nml_err_msg_size
,
3483 "Equal sign must follow namelist object name %s",
3488 /* If a derived type, touch its components and restore the root
3489 namelist_info if we have parsed a qualified derived type
3492 if (nl
->type
== BT_DERIVED
&& nl
->dtio_sub
== NULL
)
3493 nml_touch_nodes (nl
);
3497 if (first_nl
->var_rank
== 0)
3499 if (component_flag
&& qualifier_flag
)
3506 dtp
->u
.p
.nml_read_error
= 0;
3507 if (!nml_read_obj (dtp
, nl
, 0, pprev_nl
, nml_err_msg
, nml_err_msg_size
,
3515 /* The EOF error message is issued by hit_eof. Return true so that the
3516 caller does not use nml_err_msg and nml_err_msg_size to generate
3517 an unrelated error message. */
3520 dtp
->u
.p
.input_complete
= 1;
3521 unget_char (dtp
, c
);
3528 /* Entry point for namelist input. Goes through input until namelist name
3529 is matched. Then cycles through nml_get_obj_data until the input is
3530 completed or there is an error. */
3533 namelist_read (st_parameter_dt
*dtp
)
3536 char nml_err_msg
[200];
3538 /* Initialize the error string buffer just in case we get an unexpected fail
3539 somewhere and end up at nml_err_ret. */
3540 strcpy (nml_err_msg
, "Internal namelist read error");
3542 /* Pointer to the previously read object, in case attempt is made to read
3543 new object name. Should this fail, error message can give previous
3545 namelist_info
*prev_nl
= NULL
;
3547 dtp
->u
.p
.input_complete
= 0;
3548 dtp
->u
.p
.expanded_read
= 0;
3550 /* Set the next_char and push_char worker functions. */
3553 /* Look for &namelist_name . Skip all characters, testing for $nmlname.
3554 Exit on success or EOF. If '?' or '=?' encountered in stdin, print
3555 node names or namelist on stdout. */
3558 c
= next_char (dtp
);
3570 c
= next_char (dtp
);
3572 nml_query (dtp
, '=');
3574 unget_char (dtp
, c
);
3578 nml_query (dtp
, '?');
3588 /* Match the name of the namelist. */
3590 nml_match_name (dtp
, dtp
->namelist_name
, dtp
->namelist_name_len
);
3592 if (dtp
->u
.p
.nml_read_error
)
3595 /* A trailing space is required, we give a little latitude here, 10.9.1. */
3596 c
= next_char (dtp
);
3597 if (!is_separator(c
) && c
!= '!')
3599 unget_char (dtp
, c
);
3603 unget_char (dtp
, c
);
3604 eat_separator (dtp
);
3606 /* Ready to read namelist objects. If there is an error in input
3607 from stdin, output the error message and continue. */
3609 while (!dtp
->u
.p
.input_complete
)
3611 if (!nml_get_obj_data (dtp
, &prev_nl
, nml_err_msg
, sizeof nml_err_msg
))
3613 if (dtp
->u
.p
.current_unit
->unit_number
!= options
.stdin_unit
)
3615 generate_error (&dtp
->common
, LIBERROR_READ_VALUE
, nml_err_msg
);
3618 /* Reset the previous namelist pointer if we know we are not going
3619 to be doing multiple reads within a single namelist object. */
3620 if (prev_nl
&& prev_nl
->var_rank
== 0)
3631 /* All namelist error calls return from here */
3634 generate_error (&dtp
->common
, LIBERROR_READ_VALUE
, nml_err_msg
);