1 /* This file is part of the program psim.
3 Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 3 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, see <http://www.gnu.org/licenses/>.
21 #include <sys/types.h>
27 #include "build-config.h"
40 typedef struct _open_table open_table;
57 table_push (table *root,
58 table_include *includes,
59 const char *file_name,
68 table_include *include = &dummy;
71 /* dummy up a search of this directory */
72 dummy.next = includes;
75 /* create a file descriptor */
76 file = ZALLOC (open_table);
78 file->nr_fields = nr_fields;
79 file->nr_model_fields = nr_model_fields;
81 file->parent = root->current;
86 /* save the file name */
87 char *dup_name = NZALLOC (char, strlen (include->dir) + strlen (file_name) + 2);
93 if (include->dir[0] != '\0')
95 strcat (dup_name, include->dir);
96 strcat (dup_name, "/");
98 strcat (dup_name, file_name);
99 file->file_name = dup_name;
101 fd = open (dup_name, O_RDONLY, 0);
104 /* free (dup_name); */
105 if (include->next == NULL)
107 error ("Problem opening file `%s'\n", file_name);
111 include = include->next;
114 /* determine the size */
115 if (fstat(fd, &stat_buf) < 0) {
116 perror("table_open.fstat");
119 file->size = stat_buf.st_size;
121 /* allocate this much memory */
122 file->buffer = (char*)zalloc(file->size+1);
123 if(file->buffer == NULL) {
124 perror("table_open.calloc.file->size+1");
127 file->pos = file->buffer;
131 if ((file->size) && ((nr = read(fd, file->buffer, file->size)) <= 0)) {
133 if ((nr = read(fd, file->buffer, file->size)) < file->size) {
135 perror("table_open.read");
139 file->buffer[file->size] = '\0';
146 table_open(const char *file_name,
152 /* create a file descriptor */
153 root = ZALLOC (table);
160 table_push (root, NULL, file_name, nr_fields, nr_model_fields);
165 table_entry_read(table *root)
167 open_table *file = root->current;
171 /* skip comments/blanks */
174 while (*file->pos == '\0')
176 if (file->parent != NULL)
179 root->current = file;
184 /* leading white space */
185 while (*file->pos != '\0'
186 && *file->pos != '\n'
187 && isspace(*file->pos))
190 if (*file->pos == '#') {
193 } while (*file->pos != '\0' && *file->pos != '\n');
196 if (*file->pos == '\n') {
204 /* create this new entry */
205 entry = (table_entry*)zalloc(sizeof(table_entry)
206 + (file->nr_fields + 1) * sizeof(char*));
207 ASSERT(entry != NULL);
208 entry->file_name = file->file_name;
209 entry->nr_fields = file->nr_fields;
211 /* break the line into its colon delimitered fields */
212 for (field = 0; field < file->nr_fields-1; field++) {
213 entry->fields[field] = file->pos;
214 while(*file->pos && *file->pos != ':' && *file->pos != '\n')
216 if (*file->pos == ':') {
222 /* any trailing stuff not the last field */
223 ASSERT(field == file->nr_fields-1);
224 entry->fields[field] = file->pos;
225 while (*file->pos && *file->pos != '\n') {
228 if (*file->pos == '\n') {
234 /* if following lines begin with a star, add them to the model
236 while ((file->nr_model_fields > 0) && (*file->pos == '*')) {
237 table_model_entry *model = (table_model_entry*)zalloc(sizeof(table_model_entry)
238 + (file->nr_model_fields + 1) * sizeof(char*));
239 if (entry->model_last)
240 entry->model_last->next = model;
242 entry->model_first = model;
243 entry->model_last = model;
245 /* break the line into its colon delimitered fields */
247 for (field = 0; field < file->nr_model_fields-1; field++) {
248 model->fields[field] = file->pos;
249 while(*file->pos && *file->pos != ':' && *file->pos != '\n')
251 if (*file->pos == ':') {
257 /* any trailing stuff not the last field */
258 ASSERT(field == file->nr_model_fields-1);
259 model->fields[field] = file->pos;
260 while (*file->pos && *file->pos != '\n') {
263 if (*file->pos == '\n') {
269 model->line_nr = file->line_nr;
272 entry->line_nr = file->line_nr;
274 /* if following lines are tab indented, put in the annex */
275 if (*file->pos == '\t') {
276 entry->annex = file->pos;
280 } while (*file->pos != '\0' && *file->pos != '\n');
281 if (*file->pos == '\n') {
282 char *save_pos = ++file->pos;
285 /* Allow tab indented to have blank lines */
286 while (*save_pos == '\n') {
290 if (*save_pos == '\t') {
291 file->pos = save_pos;
292 file->line_nr += extra_lines;
295 } while (*file->pos != '\0' && *file->pos == '\t');
296 if (file->pos[-1] == '\n')
297 file->pos[-1] = '\0';
309 dump_table_entry(table_entry *entry,
312 printf("(table_entry*)%p\n", entry);
319 dumpf(indent, "(fields");
320 for (field = 0; field < entry->nr_fields; field++) {
321 printf("%c%s", sep, entry->fields[field]);
326 dumpf(indent, "(line_nr %d)\n", entry->line_nr);
328 dumpf(indent, "(file_name %s)\n", entry->file_name);
330 dumpf(indent, "(annex\n%s\n", entry->annex);
331 dumpf(indent, " )\n");
338 table_entry_print_cpp_line_nr(lf *file,
341 lf_print__external_reference(file, entry->line_nr, entry->file_name);