]>
git.refcnt.org Git - colorize.git/blob - colorize.c
2 * colorize - Read text from standard input stream or file and print
3 * it colorized through use of ANSI escape sequences
5 * Copyright (c) 2011-2017 Steven Schubiger
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
22 #define _DEFAULT_SOURCE
24 #define _XOPEN_SOURCE 700
25 #define _FILE_OFFSET_BITS 64
35 #include <sys/types.h>
45 #define to_str(arg) str(arg)
47 #define streq(s1, s2) (strcmp (s1, s2) == 0)
48 #define strneq(s1, s2, n) (strncmp (s1, s2, n) == 0)
51 # define xmalloc(size) malloc_wrap(size)
52 # define xcalloc(nmemb, size) calloc_wrap(nmemb, size)
53 # define xrealloc(ptr, size) realloc_wrap(ptr, size)
54 # define xstrdup(str) strdup_wrap(str, NULL, 0)
55 # define str_concat(str1, str2) str_concat_wrap(str1, str2, NULL, 0)
57 # define xmalloc(size) malloc_wrap_debug(size, __FILE__, __LINE__)
58 # define xcalloc(nmemb, size) calloc_wrap_debug(nmemb, size, __FILE__, __LINE__)
59 # define xrealloc(ptr, size) realloc_wrap_debug(ptr, size, __FILE__, __LINE__)
60 # define xstrdup(str) strdup_wrap(str, __FILE__, __LINE__)
61 # define str_concat(str1, str2) str_concat_wrap(str1, str2, __FILE__, __LINE__)
64 #define free_null(ptr) free_wrap((void **)&ptr)
66 #if defined(BUF_SIZE) && (BUF_SIZE <= 0 || BUF_SIZE > 65536)
70 # define BUF_SIZE 4096
76 #define SKIP_LINE_ENDINGS(flags) (((flags) & CR) && ((flags) & LF) ? 2 : 1)
78 #define VALID_FILE_TYPE(mode) (S_ISREG (mode) || S_ISLNK (mode) || S_ISFIFO (mode))
80 #define STACK_VAR(ptr) do { \
81 stack_var (&vars_list, &stacked_vars, stacked_vars, ptr); \
84 #define RELEASE_VAR(ptr) do { \
85 release_var (vars_list, stacked_vars, (void **)&ptr); \
89 # define MEM_ALLOC_FAIL() do { \
90 fprintf (stderr, "%s: memory allocation failure\n", program_name); \
91 exit (EXIT_FAILURE); \
94 # define MEM_ALLOC_FAIL_DEBUG(file, line) do { \
95 fprintf (stderr, "Memory allocation failure in source file %s, line %u\n", file, line); \
96 exit (EXIT_FAILURE); \
100 #define ABORT_TRACE() \
101 fprintf (stderr, "Aborting in source file %s, line %u\n", __FILE__, __LINE__); \
104 #define CHECK_COLORS_RANDOM(color1, color2) \
105 streq (color_names[color1]->name, "random") \
106 && (streq (color_names[color2]->name, "none") \
107 || streq (color_names[color2]->name, "default")) \
109 #define ALLOC_COMPLETE_PART_LINE 8
111 #if defined(COLOR_SEP_CHAR_COLON)
112 # define COLOR_SEP_CHAR ':'
113 #elif defined(COLOR_SEP_CHAR_SLASH)
114 # define COLOR_SEP_CHAR '/'
116 # define COLOR_SEP_CHAR '/'
120 # define DEBUG_FILE "debug.txt"
123 #define MAX_ATTRIBUTE_CHARS (6 * 2)
125 #define VERSION "0.62"
127 typedef enum { false, true } bool;
139 static const struct color fg_colors
[] = {
146 { "magenta", "35m" },
149 { "default", "39m" },
151 static const struct color bg_colors
[] = {
158 { "magenta", "45m" },
161 { "default", "49m" },
179 static const char *formats
[] = {
181 "%s '%s'", /* string */
182 "%s `%s' %s", /* quote */
183 "%s color '%s' %s", /* color */
184 "%s color '%s' %s '%s'", /* random */
185 "less than %lu bytes %s", /* error */
187 "%s: %s: %s", /* type */
190 enum { GENERIC
, FOREGROUND
= 0, BACKGROUND
};
192 static const struct {
193 const struct color
*entries
;
197 { fg_colors
, sizeof (fg_colors
) / sizeof (struct color
), "foreground" },
198 { bg_colors
, sizeof (bg_colors
) / sizeof (struct color
), "background" },
210 static const struct option long_opts
[] = {
211 { "attr", required_argument
, &opt_type
, OPT_ATTR
},
212 { "clean", no_argument
, &opt_type
, OPT_CLEAN
},
213 { "clean-all", no_argument
, &opt_type
, OPT_CLEAN_ALL
},
214 { "exclude-random", required_argument
, &opt_type
, OPT_EXCLUDE_RANDOM
},
215 { "help", no_argument
, &opt_type
, OPT_HELP
},
216 { "version", no_argument
, &opt_type
, OPT_VERSION
},
217 { NULL
, 0, NULL
, 0 },
222 ATTR_UNDERSCORE
= 0x02,
225 ATTR_CONCEALED
= 0x10
238 static unsigned int stacked_vars
;
239 static void **vars_list
;
242 static bool clean_all
;
244 static char attr
[MAX_ATTRIBUTE_CHARS
+ 1];
245 static char *exclude
;
247 static const char *program_name
;
249 static void process_opts (int, char **);
250 static void process_opt_attr (const char *);
251 static void write_attr (const struct attr
*, unsigned int *);
252 static void print_hint (void);
253 static void print_help (void);
254 static void print_version (void);
255 static void cleanup (void);
256 static void free_color_names (struct color_name
**);
257 static void process_args (unsigned int, char **, char *, const struct color
**, const char **, FILE **);
258 static void process_file_arg (const char *, const char **, FILE **);
259 static void skip_path_colors (const char *, const char *, const struct stat
*);
260 static void gather_color_names (const char *, char *, struct color_name
**);
261 static void read_print_stream (const char *, const struct color
**, const char *, FILE *);
262 static void merge_print_line (const char *, const char *, FILE *);
263 static void complete_part_line (const char *, char **, FILE *);
264 static bool get_next_char (char *, const char **, FILE *, bool *);
265 static void save_char (char, char **, size_t *, size_t *);
266 static void find_color_entries (struct color_name
**, const struct color
**);
267 static void find_color_entry (const struct color_name
*, unsigned int, const struct color
**);
268 static void print_line (const char *, const struct color
**, const char * const, unsigned int);
269 static void print_clean (const char *);
270 static bool is_esc (const char *);
271 static const char *get_end_of_esc (const char *);
272 static const char *get_end_of_text (const char *);
273 static void print_text (const char *, size_t);
274 static bool gather_esc_offsets (const char *, const char **, const char **);
275 static bool validate_esc_clean_all (const char **);
276 static bool validate_esc_clean (int, unsigned int, unsigned int *, const char **, bool *);
277 static bool is_reset (int, unsigned int, const char **);
278 static bool is_attr (int, unsigned int, unsigned int, const char **);
279 static bool is_fg_color (int, const char **);
280 static bool is_bg_color (int, unsigned int, const char **);
282 static void *malloc_wrap (size_t);
283 static void *calloc_wrap (size_t, size_t);
284 static void *realloc_wrap (void *, size_t);
286 static void *malloc_wrap_debug (size_t, const char *, unsigned int);
287 static void *calloc_wrap_debug (size_t, size_t, const char *, unsigned int);
288 static void *realloc_wrap_debug (void *, size_t, const char *, unsigned int);
290 static void free_wrap (void **);
291 static char *strdup_wrap (const char *, const char *, unsigned int);
292 static char *str_concat_wrap (const char *, const char *, const char *, unsigned int);
293 static bool get_bytes_size (unsigned long, struct bytes_size
*);
294 static char *get_file_type (mode_t
);
295 static bool has_color_name (const char *, const char *);
296 static FILE *open_file (const char *, const char *);
297 static void vfprintf_diag (const char *, ...);
298 static void vfprintf_fail (const char *, ...);
299 static void stack_var (void ***, unsigned int *, unsigned int, void *);
300 static void release_var (void **, unsigned int, void **);
305 main (int argc
, char **argv
)
307 unsigned int arg_cnt
;
309 const struct color
*colors
[2] = {
310 NULL
, /* foreground */
311 NULL
, /* background */
314 const char *file
= NULL
;
316 program_name
= argv
[0];
319 setvbuf (stdout
, NULL
, _IOLBF
, 0);
322 log
= open_file (DEBUG_FILE
, "w");
327 process_opts (argc
, argv
);
329 arg_cnt
= argc
- optind
;
331 if (clean
|| clean_all
)
333 if (clean
&& clean_all
)
334 vfprintf_fail (formats
[FMT_GENERIC
], "--clean and --clean-all switch are mutually exclusive");
337 const char *format
= "%s %s";
338 const char *message
= "switch cannot be used with more than one file";
340 vfprintf_fail (format
, "--clean", message
);
342 vfprintf_fail (format
, "--clean-all", message
);
347 if (arg_cnt
== 0 || arg_cnt
> 2)
349 vfprintf_diag ("%u arguments provided, expected 1-2 arguments or clean option", arg_cnt
);
355 if (clean
|| clean_all
)
356 process_file_arg (argv
[optind
], &file
, &stream
);
358 process_args (arg_cnt
, &argv
[optind
], &attr
[0], colors
, &file
, &stream
);
359 read_print_stream (&attr
[0], colors
, file
, stream
);
361 RELEASE_VAR (exclude
);
366 #define PRINT_HELP_EXIT() \
368 exit (EXIT_SUCCESS); \
370 #define PRINT_VERSION_EXIT() \
372 exit (EXIT_SUCCESS); \
377 process_opts (int argc
, char **argv
)
380 while ((opt
= getopt_long (argc
, argv
, "hV", long_opts
, NULL
)) != -1)
384 case 0: /* long opts */
388 process_opt_attr (optarg
);
396 case OPT_EXCLUDE_RANDOM
: {
399 exclude
= xstrdup (optarg
);
401 for (i
= 1; i
< tables
[GENERIC
].count
- 1; i
++) /* skip color none and default */
403 const struct color
*entry
= &tables
[GENERIC
].entries
[i
];
404 if (streq (exclude
, entry
->name
))
411 vfprintf_fail (formats
[FMT_GENERIC
], "--exclude-random switch must be provided a plain color");
417 PRINT_VERSION_EXIT ();
418 default: /* never reached */
425 PRINT_VERSION_EXIT ();
429 default: /* never reached */
436 process_opt_attr (const char *p
)
438 /* If attributes are added to this "list", also increase MAX_ATTRIBUTE_CHARS! */
439 const struct attr attrs
[] = {
440 { "bold", 1, ATTR_BOLD
},
441 { "underscore", 4, ATTR_UNDERSCORE
},
442 { "blink", 5, ATTR_BLINK
},
443 { "reverse", 7, ATTR_REVERSE
},
444 { "concealed", 8, ATTR_CONCEALED
},
446 unsigned int attr_types
= 0;
452 vfprintf_fail (formats
[FMT_GENERIC
], "--attr switch must be provided a string");
456 if (*p
!= '\0' && *p
!= ',')
457 vfprintf_fail (formats
[FMT_GENERIC
], "--attr switch must have strings separated by ,");
460 bool valid_attr
= false;
462 for (i
= 0; i
< sizeof (attrs
) / sizeof (struct attr
); i
++)
464 const size_t name_len
= strlen (attrs
[i
].name
);
465 if ((size_t)(p
- s
) == name_len
&& strneq (s
, attrs
[i
].name
, name_len
))
467 write_attr (&attrs
[i
], &attr_types
);
474 char *attr_invalid
= xmalloc ((p
- s
) + 1);
475 STACK_VAR (attr_invalid
);
476 strncpy (attr_invalid
, s
, p
- s
);
477 attr_invalid
[p
- s
] = '\0';
478 vfprintf_fail ("--attr switch attribute '%s' is not valid", attr_invalid
);
479 RELEASE_VAR (attr_invalid
); /* never reached */
488 write_attr (const struct attr
*attr_i
, unsigned int *attr_types
)
490 const unsigned int val
= attr_i
->val
;
491 const enum attr_type attr_type
= attr_i
->type
;
492 const char *attr_name
= attr_i
->name
;
494 if (*attr_types
& attr_type
)
495 vfprintf_fail ("--attr switch has attribute '%s' twice or more", attr_name
);
496 snprintf (attr
+ strlen (attr
), 3, "%u;", val
);
497 *attr_types
|= attr_type
;
503 fprintf (stderr
, "Type `%s --help' for help screen.\n", program_name
);
511 const char *short_opt
;
513 const struct short_opt short_opts
[] = {
517 const struct option
*opt
= long_opts
;
520 printf ("Usage: %s (foreground) OR (foreground)%c(background) OR --clean[-all] [-|file]\n\n", program_name
, COLOR_SEP_CHAR
);
521 printf ("\tColors (foreground) (background)\n");
522 for (i
= 0; i
< tables
[FOREGROUND
].count
; i
++)
524 const struct color
*entry
= &tables
[FOREGROUND
].entries
[i
];
525 const char *name
= entry
->name
;
526 const char *code
= entry
->code
;
528 printf ("\t\t{\033[%s#\033[0m} [%c%c]%s%*s%s\n",
529 code
, toupper (*name
), *name
, name
+ 1, 10 - (int)strlen (name
), " ", name
);
531 printf ("\t\t{-} %s%*s%s\n", name
, 13 - (int)strlen (name
), " ", name
);
533 printf ("\t\t{*} [Rr]%s%*s%s [--exclude-random=<foreground color>]\n", "andom", 10 - (int)strlen ("random"), " ", "random");
535 printf ("\n\tFirst character of color name in upper case denotes increased intensity,\n");
536 printf ("\twhereas for lower case colors will be of normal intensity.\n");
538 printf ("\n\tOptions\n");
539 for (; opt
->name
; opt
++)
541 const char *short_opt
= NULL
;
543 for (i
= 0; i
< sizeof (short_opts
) / sizeof (struct short_opt
); i
++)
544 if (streq (opt
->name
, short_opts
[i
].name
))
546 short_opt
= short_opts
[i
].short_opt
;
550 printf ("\t\t-%s, --%s\n", short_opt
, opt
->name
);
552 printf ("\t\t --%s\n", opt
->name
);
561 # include "version.h"
563 const char *version
= NULL
;
565 const char *version_prefix
, *version_string
;
566 const char *c_flags
, *ld_flags
, *cpp_flags
;
567 const char *const desc_flags_unknown
= "unknown";
568 struct bytes_size bytes_size
;
571 c_flags
= to_str (CFLAGS
);
573 c_flags
= desc_flags_unknown
;
576 ld_flags
= to_str (LDFLAGS
);
578 ld_flags
= desc_flags_unknown
;
581 cpp_flags
= to_str (CPPFLAGS
);
583 cpp_flags
= desc_flags_unknown
;
590 version_prefix
= version
? "" : "v";
591 version_string
= version
? version
: VERSION
;
592 printf ("colorize %s%s (compiled at %s, %s)\n", version_prefix
, version_string
, __DATE__
, __TIME__
);
594 printf ("Compiler flags: %s\n", c_flags
);
595 printf ("Linker flags: %s\n", ld_flags
);
596 printf ("Preprocessor flags: %s\n", cpp_flags
);
597 if (get_bytes_size (BUF_SIZE
, &bytes_size
))
599 if (BUF_SIZE
% 1024 == 0)
600 printf ("Buffer size: %u%c\n", bytes_size
.size
, bytes_size
.unit
);
602 printf ("Buffer size: %u%c, %u byte%s\n", bytes_size
.size
, bytes_size
.unit
,
603 BUF_SIZE
% 1024, BUF_SIZE
% 1024 > 1 ? "s" : "");
606 printf ("Buffer size: %lu byte%s\n", (unsigned long)BUF_SIZE
, BUF_SIZE
> 1 ? "s" : "");
607 printf ("Color separator: '%c'\n", COLOR_SEP_CHAR
);
608 printf ("Debugging: %s\n", debug
? "yes" : "no");
614 if (stream
&& fileno (stream
) != STDIN_FILENO
)
624 for (i
= 0; i
< stacked_vars
; i
++)
626 free_null (vars_list
);
631 free_color_names (struct color_name
**color_names
)
634 for (i
= 0; color_names
[i
]; i
++)
636 RELEASE_VAR (color_names
[i
]->name
);
637 RELEASE_VAR (color_names
[i
]->orig
);
638 RELEASE_VAR (color_names
[i
]);
643 process_args (unsigned int arg_cnt
, char **arg_strings
, char *attr
, const struct color
**colors
, const char **file
, FILE **stream
)
648 struct color_name
*color_names
[3] = { NULL
, NULL
, NULL
};
650 const char *color_string
= arg_cnt
>= 1 ? arg_strings
[0] : NULL
;
651 const char *file_string
= arg_cnt
== 2 ? arg_strings
[1] : NULL
;
653 assert (color_string
!= NULL
);
655 if (streq (color_string
, "-"))
658 vfprintf_fail (formats
[FMT_GENERIC
], "hyphen cannot be used as color string");
660 vfprintf_fail (formats
[FMT_GENERIC
], "hyphen must be preceded by color string");
663 ret
= lstat (color_string
, &sb
);
665 /* Ensure that we don't fail if there's a file with one or more
666 color names in its path. */
667 if (ret
== 0) /* success */
668 skip_path_colors (color_string
, file_string
, &sb
);
670 if ((p
= strchr (color_string
, COLOR_SEP_CHAR
)))
672 if (p
== color_string
)
673 vfprintf_fail (formats
[FMT_STRING
], "foreground color missing in string", color_string
);
674 else if (p
== color_string
+ strlen (color_string
) - 1)
675 vfprintf_fail (formats
[FMT_STRING
], "background color missing in string", color_string
);
676 else if (strchr (++p
, COLOR_SEP_CHAR
))
677 vfprintf_fail (formats
[FMT_STRING
], "one color pair allowed only for string", color_string
);
680 gather_color_names (color_string
, attr
, color_names
);
682 assert (color_names
[FOREGROUND
] != NULL
);
684 if (color_names
[BACKGROUND
])
687 const unsigned int color_sets
[2][2] = { { FOREGROUND
, BACKGROUND
}, { BACKGROUND
, FOREGROUND
} };
688 for (i
= 0; i
< 2; i
++)
690 const unsigned int color1
= color_sets
[i
][0];
691 const unsigned int color2
= color_sets
[i
][1];
692 if (CHECK_COLORS_RANDOM (color1
, color2
))
693 vfprintf_fail (formats
[FMT_RANDOM
], tables
[color1
].desc
, color_names
[color1
]->orig
, "cannot be combined with", color_names
[color2
]->orig
);
697 find_color_entries (color_names
, colors
);
698 assert (colors
[FOREGROUND
] != NULL
);
699 free_color_names (color_names
);
701 if (!colors
[FOREGROUND
]->code
&& colors
[BACKGROUND
] && colors
[BACKGROUND
]->code
)
703 struct color_name color_name
;
704 color_name
.name
= color_name
.orig
= "default";
706 find_color_entry (&color_name
, FOREGROUND
, colors
);
707 assert (colors
[FOREGROUND
]->code
!= NULL
);
710 process_file_arg (file_string
, file
, stream
);
714 process_file_arg (const char *file_string
, const char **file
, FILE **stream
)
718 if (streq (file_string
, "-"))
722 const char *file
= file_string
;
727 ret
= stat (file
, &sb
);
730 vfprintf_fail (formats
[FMT_FILE
], file
, strerror (errno
));
732 if (!VALID_FILE_TYPE (sb
.st_mode
))
733 vfprintf_fail (formats
[FMT_TYPE
], file
, "unrecognized type", get_file_type (sb
.st_mode
));
735 *stream
= open_file (file
, "r");
745 assert (*stream
!= NULL
);
746 assert (*file
!= NULL
);
750 skip_path_colors (const char *color_string
, const char *file_string
, const struct stat
*sb
)
754 const char *color
= color_string
;
755 const mode_t mode
= sb
->st_mode
;
757 for (c
= 1; c
<= 2 && *color
; c
++)
759 bool matched
= false;
761 for (i
= 0; i
< tables
[GENERIC
].count
; i
++)
763 const struct color
*entry
= &tables
[GENERIC
].entries
[i
];
764 if (has_color_name (color
, entry
->name
))
766 color
+= strlen (entry
->name
);
771 if (!matched
&& has_color_name (color
, "random"))
773 color
+= strlen ("random");
776 if (matched
&& *color
== COLOR_SEP_CHAR
&& *(color
+ 1))
782 have_file
= (*color
!= '\0');
786 const char *file_existing
= color_string
;
788 vfprintf_fail (formats
[FMT_QUOTE
], get_file_type (mode
), file_existing
, "cannot be used as color string");
791 if (VALID_FILE_TYPE (mode
))
792 vfprintf_fail (formats
[FMT_QUOTE
], get_file_type (mode
), file_existing
, "must be preceded by color string");
794 vfprintf_fail (formats
[FMT_QUOTE
], get_file_type (mode
), file_existing
, "is not a valid file type");
800 gather_color_names (const char *color_string
, char *attr
, struct color_name
**color_names
)
803 char *color
, *p
, *str
;
805 str
= xstrdup (color_string
);
808 for (index
= 0, color
= str
; *color
; index
++, color
= p
)
813 if ((sep
= strchr (color
, COLOR_SEP_CHAR
)))
819 p
= color
+ strlen (color
);
822 for (ch
= color
; *ch
; ch
++)
824 vfprintf_fail (formats
[FMT_COLOR
], tables
[index
].desc
, color
, "cannot be made of non-alphabetic characters");
826 for (ch
= color
+ 1; *ch
; ch
++)
828 vfprintf_fail (formats
[FMT_COLOR
], tables
[index
].desc
, color
, "cannot be in mixed lower/upper case");
830 if (streq (color
, "None"))
831 vfprintf_fail (formats
[FMT_COLOR
], tables
[index
].desc
, color
, "cannot be bold");
833 if (isupper (*color
))
838 snprintf (attr
+ strlen (attr
), 3, "1;");
841 vfprintf_fail (formats
[FMT_COLOR
], tables
[BACKGROUND
].desc
, color
, "cannot be bold");
842 default: /* never reached */
847 color_names
[index
] = xcalloc (1, sizeof (struct color_name
));
848 STACK_VAR (color_names
[index
]);
850 color_names
[index
]->orig
= xstrdup (color
);
851 STACK_VAR (color_names
[index
]->orig
);
853 for (ch
= color
; *ch
; ch
++)
856 color_names
[index
]->name
= xstrdup (color
);
857 STACK_VAR (color_names
[index
]->name
);
864 read_print_stream (const char *attr
, const struct color
**colors
, const char *file
, FILE *stream
)
866 char buf
[BUF_SIZE
+ 1];
867 unsigned int flags
= 0;
869 while (!feof (stream
))
874 bytes_read
= fread (buf
, 1, BUF_SIZE
, stream
);
875 if (bytes_read
!= BUF_SIZE
&& ferror (stream
))
876 vfprintf_fail (formats
[FMT_ERROR
], BUF_SIZE
, "read");
877 buf
[bytes_read
] = '\0';
879 while ((eol
= strpbrk (line
, "\n\r")))
886 if (*(eol
+ 1) == '\n')
889 else if (*eol
== '\n')
892 vfprintf_fail (formats
[FMT_FILE
], file
, "unrecognized line ending");
893 p
= eol
+ SKIP_LINE_ENDINGS (flags
);
895 print_line (attr
, colors
, line
, flags
);
901 print_line (attr
, colors
, line
, 0);
903 else if (*line
!= '\0')
906 if ((clean
|| clean_all
) && (p
= strrchr (line
, '\033')))
907 merge_print_line (line
, p
, stream
);
909 print_line (attr
, colors
, line
, 0);
915 merge_print_line (const char *line
, const char *p
, FILE *stream
)
918 char *merged_esc
= NULL
;
919 const char *esc
= "";
920 const char char_restore
= *p
;
922 complete_part_line (p
+ 1, &buf
, stream
);
926 /* form escape sequence */
927 esc
= merged_esc
= str_concat (p
, buf
);
928 /* shorten partial line accordingly */
933 #ifdef TEST_MERGE_PART_LINE
934 printf ("%s%s", line
, esc
);
936 _exit (EXIT_SUCCESS
);
939 *(char *)p
= char_restore
;
946 complete_part_line (const char *p
, char **buf
, FILE *stream
)
948 bool got_next_char
= false, read_from_stream
;
952 if (get_next_char (&ch
, &p
, stream
, &read_from_stream
))
956 if (read_from_stream
)
957 save_char (ch
, buf
, &i
, &size
);
961 if (read_from_stream
)
962 ungetc ((int)ch
, stream
);
969 while (get_next_char (&ch
, &p
, stream
, &read_from_stream
))
971 if (isdigit (ch
) || ch
== ';')
973 if (read_from_stream
)
974 save_char (ch
, buf
, &i
, &size
);
976 else /* got next character */
978 got_next_char
= true;
987 if (read_from_stream
)
988 save_char (ch
, buf
, &i
, &size
);
992 if (read_from_stream
)
993 ungetc ((int)ch
, stream
);
1002 get_next_char (char *ch
, const char **p
, FILE *stream
, bool *read_from_stream
)
1007 if ((c
= fgetc (stream
)) != EOF
)
1010 *read_from_stream
= true;
1015 *read_from_stream
= false;
1023 *read_from_stream
= false;
1029 save_char (char ch
, char **buf
, size_t *i
, size_t *size
)
1033 *size
= ALLOC_COMPLETE_PART_LINE
;
1034 *buf
= xmalloc (*size
);
1036 /* +1: effective occupied size of buffer */
1037 else if ((*i
+ 1) == *size
)
1040 *buf
= xrealloc (*buf
, *size
);
1043 (*buf
)[*i
+ 1] = '\0';
1048 find_color_entries (struct color_name
**color_names
, const struct color
**colors
)
1054 gettimeofday (&tv
, NULL
);
1055 srand (tv
.tv_usec
* tv
.tv_sec
);
1057 for (index
= 0; color_names
[index
]; index
++)
1059 const char *color_name
= color_names
[index
]->name
;
1061 const unsigned int count
= tables
[index
].count
;
1062 const struct color
*const color_entries
= tables
[index
].entries
;
1064 if (streq (color_name
, "random"))
1070 i
= rand() % (count
- 2) + 1; /* omit color none and default */
1074 /* --exclude-random */
1075 if (exclude
&& streq (exclude
, color_entries
[i
].name
))
1077 else if (color_names
[BACKGROUND
] && streq (color_names
[BACKGROUND
]->name
, color_entries
[i
].name
))
1081 if (streq (colors
[FOREGROUND
]->name
, color_entries
[i
].name
))
1084 default: /* never reached */
1087 } while (excludable
);
1088 colors
[index
] = (struct color
*)&color_entries
[i
];
1091 find_color_entry (color_names
[index
], index
, colors
);
1096 find_color_entry (const struct color_name
*color_name
, unsigned int index
, const struct color
**colors
)
1101 const unsigned int count
= tables
[index
].count
;
1102 const struct color
*const color_entries
= tables
[index
].entries
;
1104 for (i
= 0; i
< count
; i
++)
1105 if (streq (color_name
->name
, color_entries
[i
].name
))
1107 colors
[index
] = (struct color
*)&color_entries
[i
];
1112 vfprintf_fail (formats
[FMT_COLOR
], tables
[index
].desc
, color_name
->orig
, "not recognized");
1116 print_line (const char *attr
, const struct color
**colors
, const char *const line
, unsigned int flags
)
1119 if (clean
|| clean_all
)
1123 /* Foreground color code is guaranteed to be set when background color code is present. */
1124 if (colors
[BACKGROUND
] && colors
[BACKGROUND
]->code
)
1125 printf ("\033[%s", colors
[BACKGROUND
]->code
);
1126 if (colors
[FOREGROUND
]->code
)
1127 printf ("\033[%s%s%s\033[0m", attr
, colors
[FOREGROUND
]->code
, line
);
1129 printf (formats
[FMT_GENERIC
], line
);
1138 print_clean (const char *line
)
1140 const char *p
= line
;
1143 p
= get_end_of_esc (p
);
1147 const char *text_start
= p
;
1148 const char *text_end
= get_end_of_text (p
);
1149 print_text (text_start
, text_end
- text_start
);
1150 p
= get_end_of_esc (text_end
);
1155 is_esc (const char *p
)
1157 return gather_esc_offsets (p
, NULL
, NULL
);
1161 get_end_of_esc (const char *p
)
1164 const char *end
= NULL
;
1165 while ((esc
= strchr (p
, '\033')))
1167 if (gather_esc_offsets (esc
, NULL
, &end
))
1171 return end
? end
+ 1 : p
+ strlen (p
);
1175 get_end_of_text (const char *p
)
1178 const char *start
= NULL
;
1179 while ((esc
= strchr (p
, '\033')))
1181 if (gather_esc_offsets (esc
, &start
, NULL
))
1185 return start
? start
: p
+ strlen (p
);
1189 print_text (const char *p
, size_t len
)
1191 size_t bytes_written
;
1192 bytes_written
= fwrite (p
, 1, len
, stdout
);
1193 if (bytes_written
!= len
)
1194 vfprintf_fail (formats
[FMT_ERROR
], (unsigned long)len
, "written");
1198 gather_esc_offsets (const char *p
, const char **start
, const char **end
)
1201 if (*p
== 27 && *(p
+ 1) == '[')
1204 const char *const begin
= p
;
1207 valid
= validate_esc_clean_all (&p
);
1211 unsigned int prev_iter
, iter
;
1213 prev_iter
= iter
= 0;
1215 check_values
= false;
1220 while (isdigit (*p
))
1224 else /* check range */
1229 const unsigned int digits
= p
- digit
;
1230 for (i
= 0; i
< digits
; i
++)
1234 valid
= validate_esc_clean (value
, iter
, &prev_iter
, &p
, &check_values
);
1236 } while (check_values
);
1251 validate_esc_clean_all (const char **p
)
1253 while (isdigit (**p
) || **p
== ';')
1255 return (**p
== 'm');
1259 validate_esc_clean (int value
, unsigned int iter
, unsigned int *prev_iter
, const char **p
, bool *check_values
)
1261 if (is_reset (value
, iter
, p
))
1263 else if (is_attr (value
, iter
, *prev_iter
, p
))
1266 *check_values
= true;
1268 return false; /* partial escape sequence, need another valid value */
1270 else if (is_fg_color (value
, p
))
1272 else if (is_bg_color (value
, iter
, p
))
1279 is_reset (int value
, unsigned int iter
, const char **p
)
1281 return (value
== 0 && iter
== 1 && **p
== 'm');
1285 is_attr (int value
, unsigned int iter
, unsigned int prev_iter
, const char **p
)
1287 return ((value
> 0 && value
< 10) && (iter
- prev_iter
== 1) && **p
== ';');
1291 is_fg_color (int value
, const char **p
)
1293 return (((value
>= 30 && value
<= 37) || value
== 39) && **p
== 'm');
1297 is_bg_color (int value
, unsigned int iter
, const char **p
)
1299 return (((value
>= 40 && value
<= 47) || value
== 49) && iter
== 1 && **p
== 'm');
1304 malloc_wrap (size_t size
)
1306 void *p
= malloc (size
);
1313 calloc_wrap (size_t nmemb
, size_t size
)
1315 void *p
= calloc (nmemb
, size
);
1322 realloc_wrap (void *ptr
, size_t size
)
1324 void *p
= realloc (ptr
, size
);
1331 malloc_wrap_debug (size_t size
, const char *file
, unsigned int line
)
1333 void *p
= malloc (size
);
1335 MEM_ALLOC_FAIL_DEBUG (file
, line
);
1336 fprintf (log
, "%s: malloc'ed %lu bytes [source file %s, line %u]\n", program_name
, (unsigned long)size
, file
, line
);
1341 calloc_wrap_debug (size_t nmemb
, size_t size
, const char *file
, unsigned int line
)
1343 void *p
= calloc (nmemb
, size
);
1345 MEM_ALLOC_FAIL_DEBUG (file
, line
);
1346 fprintf (log
, "%s: calloc'ed %lu bytes [source file %s, line %u]\n", program_name
, (unsigned long)(nmemb
* size
), file
, line
);
1351 realloc_wrap_debug (void *ptr
, size_t size
, const char *file
, unsigned int line
)
1353 void *p
= realloc (ptr
, size
);
1355 MEM_ALLOC_FAIL_DEBUG (file
, line
);
1356 fprintf (log
, "%s: realloc'ed %lu bytes [source file %s, line %u]\n", program_name
, (unsigned long)size
, file
, line
);
1362 free_wrap (void **ptr
)
1369 # define do_malloc(len, file, line) malloc_wrap(len)
1371 # define do_malloc(len, file, line) malloc_wrap_debug(len, file, line)
1375 strdup_wrap (const char *str
, const char *file
, unsigned int line
)
1377 const size_t len
= strlen (str
) + 1;
1378 char *p
= do_malloc (len
, file
, line
);
1379 strncpy (p
, str
, len
);
1384 str_concat_wrap (const char *str1
, const char *str2
, const char *file
, unsigned int line
)
1386 const size_t len
= strlen (str1
) + strlen (str2
) + 1;
1389 p
= str
= do_malloc (len
, file
, line
);
1390 strncpy (p
, str1
, strlen (str1
));
1392 strncpy (p
, str2
, strlen (str2
));
1400 get_bytes_size (unsigned long bytes
, struct bytes_size
*bytes_size
)
1402 const char *unit
, units
[] = { '0', 'K', 'M', 'G', '\0' };
1403 unsigned long size
= bytes
;
1407 while (size
>= 1024 && *(unit
+ 1))
1412 bytes_size
->size
= (unsigned int)size
;
1413 bytes_size
->unit
= *unit
;
1418 get_file_type (mode_t mode
)
1422 else if (S_ISDIR (mode
))
1424 else if (S_ISCHR (mode
))
1425 return "character device";
1426 else if (S_ISBLK (mode
))
1427 return "block device";
1428 else if (S_ISFIFO (mode
))
1429 return "named pipe";
1430 else if (S_ISLNK (mode
))
1431 return "symbolic link";
1432 else if (S_ISSOCK (mode
))
1439 has_color_name (const char *str
, const char *name
)
1443 assert (strlen (str
));
1444 assert (strlen (name
));
1446 if (!(*str
== *name
|| *str
== toupper (*name
)))
1448 else if (*(name
+ 1) != '\0'
1449 && !((p
= strstr (str
+ 1, name
+ 1)) && p
== str
+ 1))
1456 open_file (const char *file
, const char *mode
)
1461 stream
= fopen (file
, mode
);
1463 vfprintf_fail (formats
[FMT_FILE
], file
, strerror (errno
));
1468 #define DO_VFPRINTF(fmt) \
1470 fprintf (stderr, "%s: ", program_name); \
1471 va_start (ap, fmt); \
1472 vfprintf (stderr, fmt, ap); \
1474 fprintf (stderr, "\n"); \
1477 vfprintf_diag (const char *fmt
, ...)
1483 vfprintf_fail (const char *fmt
, ...)
1486 exit (EXIT_FAILURE
);
1490 stack_var (void ***list
, unsigned int *stacked
, unsigned int index
, void *ptr
)
1492 /* nothing to stack */
1496 *list
= xmalloc (sizeof (void *));
1500 for (i
= 0; i
< *stacked
; i
++)
1504 return; /* reused */
1506 *list
= xrealloc (*list
, (*stacked
+ 1) * sizeof (void *));
1508 (*list
)[index
] = ptr
;
1513 release_var (void **list
, unsigned int stacked
, void **ptr
)
1516 /* nothing to release */
1519 for (i
= 0; i
< stacked
; i
++)
1520 if (list
[i
] == *ptr
)