PostgreSQL Source Code  git master
args.c
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1 /*-
2  * Copyright (c) 1985 Sun Microsystems, Inc.
3  * Copyright (c) 1980, 1993
4  * The Regents of the University of California. All rights reserved.
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  * notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  * notice, this list of conditions and the following disclaimer in the
14  * documentation and/or other materials provided with the distribution.
15  * 3. Neither the name of the University nor the names of its contributors
16  * may be used to endorse or promote products derived from this software
17  * without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29  * SUCH DAMAGE.
30  */
31 
32 #if 0
33 #ifndef lint
34 static char sccsid[] = "@(#)args.c 8.1 (Berkeley) 6/6/93";
35 #endif /* not lint */
36 #endif
37 
38 #include "c.h"
39 
40 /*
41  * Argument scanning and profile reading code. Default parameters are set
42  * here as well.
43  */
44 
45 #include <ctype.h>
46 #include <err.h>
47 #include <limits.h>
48 #include <stdio.h>
49 #include <stdlib.h>
50 #include <string.h>
51 #include "indent_globs.h"
52 #include "indent.h"
53 
54 #define INDENT_VERSION "2.1.2"
55 
56 /* profile types */
57 #define PRO_SPECIAL 1 /* special case */
58 #define PRO_BOOL 2 /* boolean */
59 #define PRO_INT 3 /* integer */
60 
61 /* profile specials for booleans */
62 #define ON 1 /* turn it on */
63 #define OFF 0 /* turn it off */
64 
65 /* profile specials for specials */
66 #define IGN 1 /* ignore it */
67 #define CLI 2 /* case label indent (float) */
68 #define STDIN 3 /* use stdin */
69 #define KEY 4 /* type (keyword) */
70 
71 static void scan_profile(FILE *f);
72 
73 #define KEY_FILE 5 /* only used for args */
74 #define VERSION 6 /* only used for args */
75 
76 const char *option_source = "?";
77 
78 void add_typedefs_from_file(const char *str);
79 
80 /*
81  * N.B.: because of the way the table here is scanned, options whose names are
82  * substrings of other options must occur later; that is, with -lp vs -l, -lp
83  * must be first. Also, while (most) booleans occur more than once, the last
84  * default value is the one actually assigned.
85  */
86 struct pro {
87  const char *p_name; /* name, e.g. -bl, -cli */
88  int p_type; /* type (int, bool, special) */
89  int p_default; /* the default value (if int) */
90  int p_special; /* depends on type */
91  int *p_obj; /* the associated variable */
92 } pro[] = {
93 
94  {"T", PRO_SPECIAL, 0, KEY, 0},
95  {"U", PRO_SPECIAL, 0, KEY_FILE, 0},
96  {"-version", PRO_SPECIAL, 0, VERSION, 0},
97  {"P", PRO_SPECIAL, 0, IGN, 0},
100  {"bad", PRO_BOOL, false, ON, &blanklines_after_declarations},
101  {"bap", PRO_BOOL, false, ON, &blanklines_after_procs},
102  {"bbb", PRO_BOOL, false, ON, &blanklines_before_blockcomments},
103  {"bc", PRO_BOOL, true, OFF, &ps.leave_comma},
104  {"bl", PRO_BOOL, true, OFF, &btype_2},
105  {"br", PRO_BOOL, true, ON, &btype_2},
106  {"bs", PRO_BOOL, false, ON, &Bill_Shannon},
107  {"cdb", PRO_BOOL, true, ON, &comment_delimiter_on_blankline},
108  {"cd", PRO_INT, 0, 0, &ps.decl_com_ind},
109  {"ce", PRO_BOOL, true, ON, &cuddle_else},
110  {"ci", PRO_INT, 0, 0, &continuation_indent},
111  {"cli", PRO_SPECIAL, 0, CLI, 0},
112  {"cp", PRO_INT, 0, 0, &else_endif_com_ind},
113  {"c", PRO_INT, 33, 0, &ps.com_ind},
114  {"di", PRO_INT, 16, 0, &ps.decl_indent},
115  {"dj", PRO_BOOL, false, ON, &ps.ljust_decl},
116  {"d", PRO_INT, 0, 0, &ps.unindent_displace},
117  {"eei", PRO_BOOL, false, ON, &extra_expression_indent},
118  {"ei", PRO_BOOL, true, ON, &ps.else_if},
119  {"fbs", PRO_BOOL, true, ON, &function_brace_split},
120  {"fc1", PRO_BOOL, true, ON, &format_col1_comments},
121  {"fcb", PRO_BOOL, true, ON, &format_block_comments},
122  {"ip", PRO_BOOL, true, ON, &ps.indent_parameters},
123  {"i", PRO_INT, 8, 0, &ps.ind_size},
124  {"lc", PRO_INT, 0, 0, &block_comment_max_col},
125  {"ldi", PRO_INT, -1, 0, &ps.local_decl_indent},
126  {"lpl", PRO_BOOL, false, ON, &lineup_to_parens_always},
127  {"lp", PRO_BOOL, true, ON, &lineup_to_parens},
128  {"l", PRO_INT, 78, 0, &max_col},
131  {"nbad", PRO_BOOL, false, OFF, &blanklines_after_declarations},
132  {"nbap", PRO_BOOL, false, OFF, &blanklines_after_procs},
133  {"nbbb", PRO_BOOL, false, OFF, &blanklines_before_blockcomments},
134  {"nbc", PRO_BOOL, true, ON, &ps.leave_comma},
135  {"nbs", PRO_BOOL, false, OFF, &Bill_Shannon},
136  {"ncdb", PRO_BOOL, true, OFF, &comment_delimiter_on_blankline},
137  {"nce", PRO_BOOL, true, OFF, &cuddle_else},
138  {"ndj", PRO_BOOL, false, OFF, &ps.ljust_decl},
139  {"neei", PRO_BOOL, false, OFF, &extra_expression_indent},
140  {"nei", PRO_BOOL, true, OFF, &ps.else_if},
141  {"nfbs", PRO_BOOL, true, OFF, &function_brace_split},
142  {"nfc1", PRO_BOOL, true, OFF, &format_col1_comments},
143  {"nfcb", PRO_BOOL, true, OFF, &format_block_comments},
144  {"nip", PRO_BOOL, true, OFF, &ps.indent_parameters},
145  {"nlpl", PRO_BOOL, false, OFF, &lineup_to_parens_always},
146  {"nlp", PRO_BOOL, true, OFF, &lineup_to_parens},
147  {"npcs", PRO_BOOL, false, OFF, &proc_calls_space},
148  {"npro", PRO_SPECIAL, 0, IGN, 0},
149  {"npsl", PRO_BOOL, true, OFF, &procnames_start_line},
150  {"nsac", PRO_BOOL, false, OFF, &space_after_cast},
151  {"nsc", PRO_BOOL, true, OFF, &star_comment_cont},
152  {"nsob", PRO_BOOL, false, OFF, &swallow_optional_blanklines},
153  {"ntpg", PRO_BOOL, false, OFF, &postgres_tab_rules},
154  {"nut", PRO_BOOL, true, OFF, &use_tabs},
155  {"nv", PRO_BOOL, false, OFF, &verbose},
156  {"pcs", PRO_BOOL, false, ON, &proc_calls_space},
157  {"psl", PRO_BOOL, true, ON, &procnames_start_line},
158  {"sac", PRO_BOOL, false, ON, &space_after_cast},
159  {"sc", PRO_BOOL, true, ON, &star_comment_cont},
160  {"sob", PRO_BOOL, false, ON, &swallow_optional_blanklines},
161  {"st", PRO_SPECIAL, 0, STDIN, 0},
162  {"ta", PRO_BOOL, false, ON, &auto_typedefs},
163  {"tpg", PRO_BOOL, false, ON, &postgres_tab_rules},
164  {"ts", PRO_INT, 8, 0, &tabsize},
165  {"ut", PRO_BOOL, true, ON, &use_tabs},
166  {"v", PRO_BOOL, false, ON, &verbose},
167  /* whew! */
168  {0, 0, 0, 0, 0}
169 };
170 
171 /*
172  * set_profile reads $HOME/.indent.pro and ./.indent.pro and handles arguments
173  * given in these files.
174  */
175 void
176 set_profile(const char *profile_name)
177 {
178  FILE *f;
179  char fname[MAXPGPATH];
180  static char prof[] = ".indent.pro";
181 
182  if (profile_name == NULL)
183  snprintf(fname, sizeof(fname), "%s/%s", getenv("HOME"), prof);
184  else
185  snprintf(fname, sizeof(fname), "%s", profile_name + 2);
186  if ((f = fopen(option_source = fname, "r")) != NULL) {
187  scan_profile(f);
188  (void) fclose(f);
189  }
190  if ((f = fopen(option_source = prof, "r")) != NULL) {
191  scan_profile(f);
192  (void) fclose(f);
193  }
194  option_source = "Command line";
195 }
196 
197 static void
198 scan_profile(FILE *f)
199 {
200  int comment, i;
201  char *p;
202  char buf[BUFSIZ];
203 
204  while (1) {
205  p = buf;
206  comment = 0;
207  while ((i = getc(f)) != EOF) {
208  if (i == '*' && !comment && p > buf && p[-1] == '/') {
209  comment = p - buf;
210  *p++ = i;
211  } else if (i == '/' && comment && p > buf && p[-1] == '*') {
212  p = buf + comment - 1;
213  comment = 0;
214  } else if (isspace((unsigned char)i)) {
215  if (p > buf && !comment)
216  break;
217  } else {
218  *p++ = i;
219  }
220  }
221  if (p != buf) {
222  *p++ = 0;
223  if (verbose)
224  printf("profile: %s\n", buf);
225  set_option(buf);
226  }
227  else if (i == EOF)
228  return;
229  }
230 }
231 
232 static const char *
233 eqin(const char *s1, const char *s2)
234 {
235  while (*s1) {
236  if (*s1++ != *s2++)
237  return (NULL);
238  }
239  return (s2);
240 }
241 
242 /*
243  * Set the defaults.
244  */
245 void
247 {
248  struct pro *p;
249 
250  /*
251  * Because ps.case_indent is a float, we can't initialize it from the
252  * table:
253  */
254  ps.case_indent = 0.0; /* -cli0.0 */
255  for (p = pro; p->p_name; p++)
256  if (p->p_type != PRO_SPECIAL)
257  *p->p_obj = p->p_default;
258 }
259 
260 void
262 {
263  struct pro *p;
264  const char *param_start;
265 
266  arg++; /* ignore leading "-" */
267  for (p = pro; p->p_name; p++)
268  if (*p->p_name == *arg && (param_start = eqin(p->p_name, arg)) != NULL)
269  goto found;
270  errx(1, "%s: unknown parameter \"%s\"", option_source, arg - 1);
271 found:
272  switch (p->p_type) {
273 
274  case PRO_SPECIAL:
275  switch (p->p_special) {
276 
277  case IGN:
278  break;
279 
280  case CLI:
281  if (*param_start == 0)
282  goto need_param;
283  ps.case_indent = atof(param_start);
284  break;
285 
286  case STDIN:
287  if (input == NULL)
288  input = stdin;
289  if (output == NULL)
290  output = stdout;
291  break;
292 
293  case KEY:
294  if (*param_start == 0)
295  goto need_param;
296  add_typename(param_start);
297  break;
298 
299  case KEY_FILE:
300  if (*param_start == 0)
301  goto need_param;
302  add_typedefs_from_file(param_start);
303  break;
304 
305  case VERSION:
306  printf("pg_bsd_indent %s (based on FreeBSD indent)\n", INDENT_VERSION);
307  exit(0);
308 
309  default:
310  errx(1, "set_option: internal error: p_special %d", p->p_special);
311  }
312  break;
313 
314  case PRO_BOOL:
315  if (p->p_special == OFF)
316  *p->p_obj = false;
317  else
318  *p->p_obj = true;
319  break;
320 
321  case PRO_INT:
322  if (!isdigit((unsigned char)*param_start)) {
323  need_param:
324  errx(1, "%s: ``%s'' requires a parameter", option_source, p->p_name);
325  }
326  *p->p_obj = atoi(param_start);
327  break;
328 
329  default:
330  errx(1, "set_option: internal error: p_type %d", p->p_type);
331  }
332 }
333 
334 void
336 {
337  FILE *file;
338  char line[BUFSIZ];
339 
340  if ((file = fopen(str, "r")) == NULL) {
341  fprintf(stderr, "indent: cannot open file %s\n", str);
342  exit(1);
343  }
344  while ((fgets(line, BUFSIZ, file)) != NULL) {
345  /* Remove trailing whitespace */
346  line[strcspn(line, " \t\n\r")] = '\0';
347  add_typename(line);
348  }
349  fclose(file);
350 }
static const char * eqin(const char *s1, const char *s2)
Definition: args.c:233
#define VERSION
Definition: args.c:74
#define KEY_FILE
Definition: args.c:73
#define OFF
Definition: args.c:63
void add_typedefs_from_file(const char *str)
Definition: args.c:335
void set_profile(const char *profile_name)
Definition: args.c:176
static void scan_profile(FILE *f)
Definition: args.c:198
#define CLI
Definition: args.c:67
#define KEY
Definition: args.c:69
void set_option(char *arg)
Definition: args.c:261
#define PRO_INT
Definition: args.c:59
#define STDIN
Definition: args.c:68
#define ON
Definition: args.c:62
const char * option_source
Definition: args.c:76
void set_defaults(void)
Definition: args.c:246
#define PRO_SPECIAL
Definition: args.c:57
#define IGN
Definition: args.c:66
#define PRO_BOOL
Definition: args.c:58
#define INDENT_VERSION
Definition: args.c:54
void errx(int eval, const char *fmt,...)
Definition: err.c:58
const char * str
void add_typename(const char *)
Definition: lexi.c:687
#define comment
Definition: indent_codes.h:49
int star_comment_cont
int verbose
int tabsize
int else_endif_com_ind
int procnames_start_line
int blanklines_after_declarations
int block_comment_max_col
int auto_typedefs
int use_tabs
int blanklines_after_procs
int format_col1_comments
int space_after_cast
int btype_2
int lineup_to_parens
int proc_calls_space
int blanklines_before_blockcomments
int postgres_tab_rules
int Bill_Shannon
int extra_expression_indent
int function_brace_split
int max_col
int format_block_comments
FILE * input
struct parser_state ps
int comment_delimiter_on_blankline
int blanklines_around_conditional_compilation
int swallow_optional_blanklines
int cuddle_else
int continuation_indent
FILE * output
int lineup_to_parens_always
int blanklines_after_declarations_at_proctop
int i
Definition: isn.c:73
exit(1)
void * arg
#define MAXPGPATH
static char * buf
Definition: pg_test_fsync.c:73
#define snprintf
Definition: port.h:238
#define fprintf
Definition: port.h:242
#define printf(...)
Definition: port.h:244
char * s1
char * s2
int unindent_displace
Definition: indent_globs.h:307
int indent_parameters
Definition: indent_globs.h:325
float case_indent
Definition: indent_globs.h:322
int local_decl_indent
Definition: indent_globs.h:319
Definition: args.c:86
int p_type
Definition: args.c:88
int p_special
Definition: args.c:90
const char * p_name
Definition: args.c:87
int * p_obj
Definition: args.c:91
int p_default
Definition: args.c:89