* colorize - Read text from standard input stream or file and print
* it colorized through use of ANSI escape sequences
*
- * Copyright (c) 2011-2013 Steven Schubiger
+ * Copyright (c) 2011-2015 Steven Schubiger
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
*
*/
-#define _POSIX_SOURCE
+#define _BSD_SOURCE
+#define _XOPEN_SOURCE 700
+#define _FILE_OFFSET_BITS 64
#include <assert.h>
#include <ctype.h>
#include <errno.h>
#include <time.h>
#include <unistd.h>
-#define DEBUG 0
+#ifndef DEBUG
+# define DEBUG 0
+#endif
#define str(arg) #arg
#define to_str(arg) str(arg)
#define streq(s1, s2) (strcmp (s1, s2) == 0)
-#if DEBUG
-# define xmalloc(size) malloc_wrap_debug(size, __FILE__, __LINE__)
-# define xrealloc(ptr, size) realloc_wrap_debug(ptr, size, __FILE__, __LINE__)
+#if !DEBUG
+# define xmalloc(size) malloc_wrap(size)
+# define xcalloc(nmemb, size) calloc_wrap(nmemb, size)
+# define xrealloc(ptr, size) realloc_wrap(ptr, size)
+# define xstrdup(str) strdup_wrap(str, NULL, 0)
+# define str_concat(str1, str2) str_concat_wrap(str1, str2, NULL, 0)
#else
-# define xmalloc(size) malloc_wrap(size)
-# define xrealloc(ptr, size) realloc_wrap(ptr, size)
+# define xmalloc(size) malloc_wrap_debug(size, __FILE__, __LINE__)
+# define xcalloc(nmemb, size) calloc_wrap_debug(nmemb, size, __FILE__, __LINE__)
+# define xrealloc(ptr, size) realloc_wrap_debug(ptr, size, __FILE__, __LINE__)
+# define xstrdup(str) strdup_wrap(str, __FILE__, __LINE__)
+# define str_concat(str1, str2) str_concat_wrap(str1, str2, __FILE__, __LINE__)
#endif
#define free_null(ptr) free_wrap((void **)&ptr)
-#define xstrdup(str) strdup_wrap(str)
-#if !defined BUF_SIZE || BUF_SIZE <= 0
+#if defined(BUF_SIZE) && (BUF_SIZE <= 0 || BUF_SIZE > 65536)
# undef BUF_SIZE
-# define BUF_SIZE 4096 + 1
+#endif
+#ifndef BUF_SIZE
+# define BUF_SIZE 4096
#endif
#define LF 0x01
#define SKIP_LINE_ENDINGS(flags) (((flags) & CR) && ((flags) & LF) ? 2 : 1)
+#define VALID_FILE_TYPE(mode) (S_ISREG (mode) || S_ISLNK (mode) || S_ISFIFO (mode))
+
#define STACK_VAR(ptr) do { \
stack_var (&vars_list, &stacked_vars, stacked_vars, ptr); \
-} while (false);
+} while (false)
#define RELEASE_VAR(ptr) do { \
release_var (vars_list, stacked_vars, (void **)&ptr); \
-} while (false);
+} while (false)
-#define MEM_ALLOC_FAIL_DEBUG(file, line) do { \
- fprintf (stderr, "Memory allocation failure in source file %s, line %d\n", file, line); \
- exit (2); \
-} while (false);
-#define MEM_ALLOC_FAIL() do { \
+#if !DEBUG
+# define MEM_ALLOC_FAIL() do { \
fprintf (stderr, "%s: memory allocation failure\n", program_name); \
- exit (2); \
-} while (false);
+ exit (EXIT_FAILURE); \
+} while (false)
+#else
+# define MEM_ALLOC_FAIL_DEBUG(file, line) do { \
+ fprintf (stderr, "Memory allocation failure in source file %s, line %u\n", file, line); \
+ exit (EXIT_FAILURE); \
+} while (false)
+#endif
#define ABORT_TRACE() \
- fprintf (stderr, "Aborting in source file %s, line %d\n", __FILE__, __LINE__); \
+ fprintf (stderr, "Aborting in source file %s, line %u\n", __FILE__, __LINE__); \
abort (); \
#define CHECK_COLORS_RANDOM(color1, color2) \
&& (streq (color_names[color2]->name, "none") \
|| streq (color_names[color2]->name, "default")) \
-#define VERSION "0.48"
+#define COLOR_SEP_CHAR '/'
-typedef unsigned short bool;
+#define DEBUG_FILE "debug.txt"
-enum { false, true };
+#define VERSION "0.56"
+
+typedef enum { false, true } bool;
struct color_name {
char *name;
{ "green", "32m" },
{ "yellow", "33m" },
{ "blue", "34m" },
- { "cyan", "35m" },
- { "magenta", "36m" },
+ { "magenta", "35m" },
+ { "cyan", "36m" },
{ "white", "37m" },
{ "default", "39m" },
};
{ "green", "42m" },
{ "yellow", "43m" },
{ "blue", "44m" },
- { "cyan", "45m" },
- { "magenta", "46m" },
+ { "magenta", "45m" },
+ { "cyan", "46m" },
{ "white", "47m" },
{ "default", "49m" },
};
+struct bytes_size {
+ unsigned int size;
+ char unit;
+};
+
enum fmts {
FMT_GENERIC,
+ FMT_STRING,
+ FMT_QUOTE,
FMT_COLOR,
FMT_RANDOM,
FMT_ERROR,
- FMT_FILE
+ FMT_FILE,
+ FMT_TYPE
};
static const char *formats[] = {
- "%s", /* generic */
- "%s color '%s' %s", /* color */
- "%s color '%s' %s '%s'", /* random */
- "less than %d bytes %s", /* error */
- "%s: %s", /* file */
+ "%s", /* generic */
+ "%s '%s'", /* string */
+ "%s `%s' %s", /* quote */
+ "%s color '%s' %s", /* color */
+ "%s color '%s' %s '%s'", /* random */
+ "less than %lu bytes %s", /* error */
+ "%s: %s", /* file */
+ "%s: %s: %s", /* type */
};
enum { FOREGROUND, BACKGROUND };
{ bg_colors, sizeof (bg_colors) / sizeof (struct color), "background" },
};
-enum stream_mode { SCAN_FIRST = 1, SCAN_ALWAYS };
-
-struct ending {
- unsigned int flags;
- const char newline[3];
-};
-
-static const struct ending endings[] = {
- { CR & LF, "\r\n" },
- { CR, "\r" },
- { LF, "\n" },
-};
+static FILE *stream;
+#if DEBUG
+static FILE *log;
+#endif
-static FILE *stream = NULL;
+static unsigned int stacked_vars;
+static void **vars_list;
-static unsigned int stacked_vars = 0;
-static void **vars_list = NULL;
+static bool clean;
+static bool clean_all;
-static bool clean = false;
-static char *exclude = NULL;
+static char *exclude;
static const char *program_name;
+static void print_hint (void);
static void print_help (void);
static void print_version (void);
static void cleanup (void);
static void free_color_names (struct color_name **);
-static void process_options (unsigned int, char **, bool *, const struct color **, const char **, FILE **);
-static void process_file_option (const char *, const char **, FILE **);
-static void read_print_stream (bool, const struct color **, const char *, FILE *, enum stream_mode);
+static void process_args (unsigned int, char **, bool *, const struct color **, const char **, FILE **);
+static void process_file_arg (const char *, const char **, FILE **);
+static void read_print_stream (bool, const struct color **, const char *, FILE *);
static void find_color_entries (struct color_name **, const struct color **);
-static void find_color_entry (const char *const, unsigned int, const struct color **);
-static void print_line (const struct color **, bool, const char * const, unsigned int);
+static void find_color_entry (const struct color_name *, unsigned int, const struct color **);
+static void print_line (bool, const struct color **, const char * const, unsigned int);
static void print_clean (const char *);
-static void print_free_offsets (const char *, char ***, unsigned int);
+static bool is_esc (const char *);
+static const char *get_end_of_esc (const char *);
+static const char *get_end_of_text (const char *);
+static void print_text (const char *, size_t);
+static bool gather_esc_offsets (const char *, const char **, const char **);
+static bool validate_esc_clean_all (const char **);
+static bool validate_esc_clean (int, unsigned int, const char **, bool *);
+static bool is_reset (int, unsigned int, const char **);
+static bool is_bold (int, unsigned int, const char **);
+static bool is_fg_color (int, const char **);
+static bool is_bg_color (int, unsigned int, const char **);
+#if !DEBUG
static void *malloc_wrap (size_t);
+static void *calloc_wrap (size_t, size_t);
static void *realloc_wrap (void *, size_t);
+#else
static void *malloc_wrap_debug (size_t, const char *, unsigned int);
+static void *calloc_wrap_debug (size_t, size_t, const char *, unsigned int);
static void *realloc_wrap_debug (void *, size_t, const char *, unsigned int);
+#endif
static void free_wrap (void **);
-static char *strdup_wrap (const char *);
-static char *str_concat (const char *, const char *);
+static char *strdup_wrap (const char *, const char *, unsigned int);
+static char *str_concat_wrap (const char *, const char *, const char *, unsigned int);
+static bool get_bytes_size (unsigned long, struct bytes_size *);
+static char *get_file_type (mode_t);
+static bool has_color_name (const char *, const char *);
+static FILE *open_file (const char *, const char *);
+static void vfprintf_diag (const char *, ...);
static void vfprintf_fail (const char *, ...);
static void stack_var (void ***, unsigned int *, unsigned int, void *);
static void release_var (void **, unsigned int, void **);
+#define SET_OPT_TYPE(type) \
+ opt_type = type; \
+ opt = 0; \
+ goto PARSE_OPT; \
+
extern char *optarg;
extern int optind;
+static int opt_type;
+
int
main (int argc, char **argv)
{
unsigned int arg_cnt = 0;
+ enum {
+ OPT_CLEAN = 1,
+ OPT_CLEAN_ALL,
+ OPT_EXCLUDE_RANDOM,
+ OPT_HELP,
+ OPT_VERSION
+ };
+
int opt;
struct option long_opts[] = {
- { "clean", no_argument, NULL, 'c' },
- { "exclude-random", required_argument, NULL, 'e' },
- { "help", no_argument, NULL, 'h' },
- { "version", no_argument, NULL, 'v' },
- { 0, 0, 0, 0 },
+ { "clean", no_argument, &opt_type, OPT_CLEAN },
+ { "clean-all", no_argument, &opt_type, OPT_CLEAN_ALL },
+ { "exclude-random", required_argument, &opt_type, OPT_EXCLUDE_RANDOM },
+ { "help", no_argument, &opt_type, OPT_HELP },
+ { "version", no_argument, &opt_type, OPT_VERSION },
+ { NULL, 0, NULL, 0 },
};
bool bold = false;
NULL, /* background */
};
- const char *file;
-
- enum stream_mode mode = SCAN_FIRST;
+ const char *file = NULL;
program_name = argv[0];
atexit (cleanup);
setvbuf (stdout, NULL, _IOLBF, 0);
- while ((opt = getopt_long (argc, argv, "hv", long_opts, NULL)) != -1)
+#if DEBUG
+ log = open_file (DEBUG_FILE, "w");
+#endif
+
+ while ((opt = getopt_long (argc, argv, "hV", long_opts, NULL)) != -1)
{
+ PARSE_OPT:
switch (opt)
{
- case 'c':
- clean = true;
- break;
- case 'e': {
- char *p;
- exclude = xstrdup (optarg);
- STACK_VAR (exclude);
- for (p = exclude; *p; p++)
- *p = tolower (*p);
- if (streq (exclude, "random"))
- vfprintf_fail (formats[FMT_GENERIC], "--exclude-random switch must be provided a color");
+ case 0: /* long opts */
+ switch (opt_type)
+ {
+ case OPT_CLEAN:
+ clean = true;
+ break;
+ case OPT_CLEAN_ALL:
+ clean_all = true;
+ break;
+ case OPT_EXCLUDE_RANDOM: {
+ bool valid = false;
+ unsigned int i;
+ exclude = xstrdup (optarg);
+ STACK_VAR (exclude);
+ for (i = 1; i < tables[FOREGROUND].count - 1; i++) /* skip color none and default */
+ {
+ const struct color *entry = &tables[FOREGROUND].entries[i];
+ if (streq (exclude, entry->name))
+ {
+ valid = true;
+ break;
+ }
+ }
+ if (!valid)
+ vfprintf_fail (formats[FMT_GENERIC], "--exclude-random switch must be provided a plain color");
+ break;
+ }
+ case OPT_HELP:
+ print_help ();
+ exit (EXIT_SUCCESS);
+ case OPT_VERSION:
+ print_version ();
+ exit (EXIT_SUCCESS);
+ default: /* never reached */
+ ABORT_TRACE ();
+ }
break;
- }
case 'h':
- print_help ();
- exit (EXIT_SUCCESS);
- case 'v':
- print_version ();
- exit (EXIT_SUCCESS);
+ SET_OPT_TYPE (OPT_HELP);
+ case 'V':
+ SET_OPT_TYPE (OPT_VERSION);
case '?':
- print_help ();
+ print_hint ();
exit (EXIT_FAILURE);
default: /* never reached */
ABORT_TRACE ();
arg_cnt = argc - optind;
- if (clean)
+ if (clean || clean_all)
{
+ if (clean && clean_all)
+ vfprintf_fail (formats[FMT_GENERIC], "--clean and --clean-all switch are mutually exclusive");
if (arg_cnt > 1)
- vfprintf_fail (formats[FMT_GENERIC], "--clean switch cannot be used with more than one file");
+ {
+ const char *format = "%s %s";
+ const char *message = "switch cannot be used with more than one file";
+ if (clean)
+ vfprintf_fail (format, "--clean", message);
+ else if (clean_all)
+ vfprintf_fail (format, "--clean-all", message);
+ }
}
else
{
if (arg_cnt == 0 || arg_cnt > 2)
{
- print_help ();
+ vfprintf_diag ("%u arguments provided, expected 1-2 arguments or clean option", arg_cnt);
+ print_hint ();
exit (EXIT_FAILURE);
}
}
- if (clean)
- process_file_option (argv[optind], &file, &stream);
+ if (clean || clean_all)
+ process_file_arg (argv[optind], &file, &stream);
else
- process_options (arg_cnt, &argv[optind], &bold, colors, &file, &stream);
- read_print_stream (bold, colors, file, stream, mode);
+ process_args (arg_cnt, &argv[optind], &bold, colors, &file, &stream);
+ read_print_stream (bold, colors, file, stream);
RELEASE_VAR (exclude);
exit (EXIT_SUCCESS);
}
+static void
+print_hint (void)
+{
+ fprintf (stderr, "Type `%s --help' for help screen.\n", program_name);
+}
+
static void
print_help (void)
{
unsigned int i;
- printf ("Usage: %s (foreground) OR (foreground)/(background) OR --clean [-|file]\n\n", program_name);
+ printf ("Usage: %s (foreground) OR (foreground)%c(background) OR --clean[-all] [-|file]\n\n", program_name, COLOR_SEP_CHAR);
printf ("\tColors (foreground) (background)\n");
for (i = 0; i < tables[FOREGROUND].count; i++)
{
printf ("\n\tOptions\n");
printf ("\t\t --clean\n");
+ printf ("\t\t --clean-all\n");
printf ("\t\t --exclude-random\n");
printf ("\t\t-h, --help\n");
- printf ("\t\t-v, --version\n\n");
+ printf ("\t\t-V, --version\n\n");
}
static void
print_version (void)
{
+#ifdef HAVE_VERSION
+# include "version.h"
+#else
+ const char *version = NULL;
+#endif
+ const char *version_prefix, *version_string;
const char *c_flags;
- printf ("%s v%s (compiled at %s, %s)\n", "colorize", VERSION, __DATE__, __TIME__);
+ struct bytes_size bytes_size;
+ bool debug;
#ifdef CFLAGS
c_flags = to_str (CFLAGS);
#else
c_flags = "unknown";
#endif
+#if DEBUG
+ debug = true;
+#else
+ debug = false;
+#endif
+ version_prefix = version ? "" : "v";
+ version_string = version ? version : VERSION;
+ printf ("colorize %s%s (compiled at %s, %s)\n", version_prefix, version_string, __DATE__, __TIME__);
+
printf ("Compiler flags: %s\n", c_flags);
- printf ("Buffer size: %d bytes\n", BUF_SIZE - 1);
+ if (get_bytes_size (BUF_SIZE, &bytes_size))
+ {
+ if (BUF_SIZE % 1024 == 0)
+ printf ("Buffer size: %u%c\n", bytes_size.size, bytes_size.unit);
+ else
+ printf ("Buffer size: %u%c, %u byte%s\n", bytes_size.size, bytes_size.unit,
+ BUF_SIZE % 1024, BUF_SIZE % 1024 > 1 ? "s" : "");
+ }
+ else
+ printf ("Buffer size: %lu byte%s\n", (unsigned long)BUF_SIZE, BUF_SIZE > 1 ? "s" : "");
+ printf ("Debugging: %s\n", debug ? "yes" : "no");
}
static void
if (stream && fileno (stream) != STDIN_FILENO)
fclose (stream);
+#if DEBUG
+ if (log)
+ fclose (log);
+#endif
if (vars_list)
{
unsigned int i;
for (i = 0; i < stacked_vars; i++)
if (vars_list[i])
- free_null (vars_list[i]);
+ free (vars_list[i]);
+
free_null (vars_list);
}
}
unsigned int i;
for (i = 0; color_names[i]; i++)
{
- free_null (color_names[i]->name);
- free_null (color_names[i]->orig);
+ free (color_names[i]->name);
+ free (color_names[i]->orig);
free_null (color_names[i]);
}
}
static void
-process_options (unsigned int arg_cnt, char **option_strings, bool *bold, const struct color **colors, const char **file, FILE **stream)
+process_args (unsigned int arg_cnt, char **arg_strings, bool *bold, const struct color **colors, const char **file, FILE **stream)
{
int ret;
unsigned int index;
char *color, *p, *str;
struct stat sb;
- const char *color_string = arg_cnt >= 1 ? option_strings[0] : NULL;
- const char *file_string = arg_cnt == 2 ? option_strings[1] : NULL;
+ const char *color_string = arg_cnt >= 1 ? arg_strings[0] : NULL;
+ const char *file_string = arg_cnt == 2 ? arg_strings[1] : NULL;
assert (color_string);
vfprintf_fail (formats[FMT_GENERIC], "hyphen must be preceeded by color string");
}
- ret = stat (color_string, &sb);
+ ret = lstat (color_string, &sb);
/* Ensure that we don't fail if there's a file with one or more
color names in its path. */
- if (ret != -1)
+ if (ret == 0) /* success */
{
bool have_file;
unsigned int c;
const char *color = color_string;
+ const mode_t mode = sb.st_mode;
for (c = 1; c <= 2 && *color; c++)
{
for (i = 0; i < tables[FOREGROUND].count; i++)
{
const struct color *entry = &tables[FOREGROUND].entries[i];
- char *p;
- if ((p = strstr (color, entry->name)) && p == color)
+ if (has_color_name (color, entry->name))
{
- color = p + strlen (entry->name);
+ color += strlen (entry->name);
matched = true;
break;
}
}
- if (matched && *color == '/' && *(color + 1))
+ if (!matched && has_color_name (color, "random"))
+ {
+ color += strlen ("random");
+ matched = true;
+ }
+ if (matched && *color == COLOR_SEP_CHAR && *(color + 1))
color++;
else
break;
if (have_file)
{
+ const char *file_exists = color_string;
if (file_string)
- vfprintf_fail (formats[FMT_GENERIC], "file cannot be used as color string");
+ vfprintf_fail (formats[FMT_QUOTE], get_file_type (mode), file_exists, "cannot be used as color string");
else
- vfprintf_fail (formats[FMT_GENERIC], "file must be preceeded by color string");
+ {
+ if (VALID_FILE_TYPE (mode))
+ vfprintf_fail (formats[FMT_QUOTE], get_file_type (mode), file_exists, "must be preceeded by color string");
+ else
+ vfprintf_fail (formats[FMT_QUOTE], get_file_type (mode), file_exists, "is not a valid file type");
+ }
}
}
- if ((p = strchr (color_string, '/')))
+ if ((p = strchr (color_string, COLOR_SEP_CHAR)))
{
if (p == color_string)
- vfprintf_fail (formats[FMT_GENERIC], "foreground color missing");
+ vfprintf_fail (formats[FMT_STRING], "foreground color missing in string", color_string);
else if (p == color_string + strlen (color_string) - 1)
- vfprintf_fail (formats[FMT_GENERIC], "background color missing");
- else if (strchr (++p, '/'))
- vfprintf_fail (formats[FMT_GENERIC], "one color pair allowed only");
+ vfprintf_fail (formats[FMT_STRING], "background color missing in string", color_string);
+ else if (strchr (++p, COLOR_SEP_CHAR))
+ vfprintf_fail (formats[FMT_STRING], "one color pair allowed only for string", color_string);
}
str = xstrdup (color_string);
for (index = 0, color = str; *color; index++, color = p)
{
char *ch, *sep;
- if ((sep = strchr (color, '/')))
+
+ p = NULL;
+ if ((sep = strchr (color, COLOR_SEP_CHAR)))
{
*sep = '\0';
p = sep + 1;
}
else
p = color + strlen (color);
+ assert (p);
for (ch = color; *ch; ch++)
if (!isalpha (*ch))
break;
case BACKGROUND:
vfprintf_fail (formats[FMT_COLOR], tables[BACKGROUND].desc, color, "cannot be bold");
- break;
default: /* never reached */
ABORT_TRACE ();
}
}
- color_names[index] = xmalloc (sizeof (struct color_name));
+ color_names[index] = xcalloc (1, sizeof (struct color_name));
color_names[index]->orig = xstrdup (color);
if (color_names[BACKGROUND])
{
unsigned int i;
- unsigned int color_sets[2][2] = { { FOREGROUND, BACKGROUND }, { BACKGROUND, FOREGROUND } };
+ const unsigned int color_sets[2][2] = { { FOREGROUND, BACKGROUND }, { BACKGROUND, FOREGROUND } };
for (i = 0; i < 2; i++)
{
- unsigned int color1 = color_sets[i][0];
- unsigned int color2 = color_sets[i][1];
+ const unsigned int color1 = color_sets[i][0];
+ const unsigned int color2 = color_sets[i][1];
if (CHECK_COLORS_RANDOM (color1, color2))
vfprintf_fail (formats[FMT_RANDOM], tables[color1].desc, color_names[color1]->orig, "cannot be combined with", color_names[color2]->orig);
}
free_color_names (color_names);
if (!colors[FOREGROUND]->code && colors[BACKGROUND] && colors[BACKGROUND]->code)
- find_color_entry ("default", FOREGROUND, colors);
+ {
+ struct color_name color_name;
+ color_name.name = color_name.orig = "default";
+
+ find_color_entry (&color_name, FOREGROUND, colors);
+ }
- process_file_option (file_string, file, stream);
+ process_file_arg (file_string, file, stream);
}
static void
-process_file_option (const char *file_string, const char **file, FILE **stream)
+process_file_arg (const char *file_string, const char **file, FILE **stream)
{
if (file_string)
{
*stream = stdin;
else
{
- FILE *s;
const char *file = file_string;
struct stat sb;
- int errno, ret;
+ int ret;
errno = 0;
ret = stat (file, &sb);
if (ret == -1)
vfprintf_fail (formats[FMT_FILE], file, strerror (errno));
- if (!(S_ISREG (sb.st_mode) || S_ISLNK (sb.st_mode) || S_ISFIFO (sb.st_mode)))
- vfprintf_fail (formats[FMT_FILE], file, "unrecognized file type");
+ if (!VALID_FILE_TYPE (sb.st_mode))
+ vfprintf_fail (formats[FMT_TYPE], file, "unrecognized type", get_file_type (sb.st_mode));
- errno = 0;
-
- s = fopen (file, "r");
- if (!s)
- vfprintf_fail (formats[FMT_FILE], file, strerror (errno));
- *stream = s;
+ *stream = open_file (file, "r");
}
*file = file_string;
}
}
assert (*stream);
+ assert (*file);
}
-#define MERGE_PRINT_LINE(part_line, line, flags) do { \
- char *merged_line = NULL; \
- if (part_line) \
- { \
- merged_line = str_concat (part_line, line); \
- free_null (part_line); \
- } \
- print_line (colors, bold, merged_line ? merged_line : line, flags); \
- free (merged_line); \
-} while (false);
+#define MERGE_PRINT_LINE(part_line, line, flags, check_eof) do { \
+ char *current_line, *merged_line = NULL; \
+ if (part_line) \
+ { \
+ merged_line = str_concat (part_line, line); \
+ free_null (part_line); \
+ } \
+ current_line = merged_line ? merged_line : (char *)line; \
+ if (!check_eof || *current_line != '\0') \
+ print_line (bold, colors, current_line, flags); \
+ free (merged_line); \
+} while (false)
static void
-read_print_stream (bool bold, const struct color **colors, const char *file, FILE *stream, enum stream_mode mode)
+read_print_stream (bool bold, const struct color **colors, const char *file, FILE *stream)
{
- char buf[BUF_SIZE], *part_line = NULL;
+ char buf[BUF_SIZE + 1], *part_line = NULL;
unsigned int flags = 0;
- bool first = false, always = false;
-
- switch (mode)
- {
- case SCAN_FIRST:
- first = true;
- break;
- case SCAN_ALWAYS:
- always = true;
- break;
- default: /* never reached */
- ABORT_TRACE ();
- }
while (!feof (stream))
{
size_t bytes_read;
char *eol;
const char *line;
- memset (buf, '\0', BUF_SIZE);
- bytes_read = fread (buf, 1, BUF_SIZE - 1, stream);
- if (bytes_read != (BUF_SIZE - 1) && ferror (stream))
- vfprintf_fail (formats[FMT_ERROR], BUF_SIZE - 1, "read");
+ memset (buf, '\0', BUF_SIZE + 1);
+ bytes_read = fread (buf, 1, BUF_SIZE, stream);
+ if (bytes_read != BUF_SIZE && ferror (stream))
+ vfprintf_fail (formats[FMT_ERROR], BUF_SIZE, "read");
line = buf;
- LOOP: while ((eol = strpbrk (line, "\n\r")))
+ while ((eol = strpbrk (line, "\n\r")))
{
char *p;
- if (first || always)
+ flags &= ~(CR|LF);
+ if (*eol == '\r')
{
- first = false;
- flags &= ~(CR|LF);
- if (*eol == '\r')
- {
- flags |= CR;
- if (*(eol + 1) == '\n')
- flags |= LF;
- }
- else if (*eol == '\n')
+ flags |= CR;
+ if (*(eol + 1) == '\n')
flags |= LF;
- else
- vfprintf_fail (formats[FMT_FILE], file, "unrecognized line ending");
- }
- if (always)
- p = eol + SKIP_LINE_ENDINGS (flags);
- else /* first */
- {
- unsigned int i;
- unsigned int count = sizeof (endings) / sizeof (struct ending);
- for (i = 0; i < count; i++)
- {
- if (flags & endings[i].flags)
- {
- char *p;
- if ((p = strstr (eol, endings[i].newline)) && p == eol)
- break;
- else
- {
- always = true;
- goto LOOP;
- }
- }
- }
- p = eol + SKIP_LINE_ENDINGS (flags);
}
+ else if (*eol == '\n')
+ flags |= LF;
+ else
+ vfprintf_fail (formats[FMT_FILE], file, "unrecognized line ending");
+ p = eol + SKIP_LINE_ENDINGS (flags);
*eol = '\0';
- MERGE_PRINT_LINE (part_line, line, flags);
+ MERGE_PRINT_LINE (part_line, line, flags, false);
line = p;
}
if (feof (stream)) {
- MERGE_PRINT_LINE (part_line, line, 0);
+ MERGE_PRINT_LINE (part_line, line, 0, true);
}
- else
+ else if (*line != '\0')
{
- if (!clean) /* efficiency */
- print_line (colors, bold, line, 0);
+ if (!clean && !clean_all) /* efficiency */
+ print_line (bold, colors, line, 0);
else if (!part_line)
part_line = xstrdup (line);
else
colors[index] = (struct color *)&color_entries[i];
}
else
- find_color_entry (color_name, index, colors);
+ find_color_entry (color_names[index], index, colors);
}
}
static void
-find_color_entry (const char *const color_name, unsigned int index, const struct color **colors)
+find_color_entry (const struct color_name *color_name, unsigned int index, const struct color **colors)
{
bool found = false;
unsigned int i;
const struct color *const color_entries = tables[index].entries;
for (i = 0; i < count; i++)
- if (streq (color_name, color_entries[i].name))
+ if (streq (color_name->name, color_entries[i].name))
{
colors[index] = (struct color *)&color_entries[i];
found = true;
break;
}
if (!found)
- vfprintf_fail (formats[FMT_COLOR], tables[index].desc, color_name, "not recognized");
+ vfprintf_fail (formats[FMT_COLOR], tables[index].desc, color_name->orig, "not recognized");
}
static void
-print_line (const struct color **colors, bool bold, const char *const line, unsigned int flags)
+print_line (bool bold, const struct color **colors, const char *const line, unsigned int flags)
{
- /* --clean */
- if (clean)
+ /* --clean[-all] */
+ if (clean || clean_all)
print_clean (line);
else
{
+ /* Foreground color code is guaranteed to be set when background color code is present. */
if (colors[BACKGROUND] && colors[BACKGROUND]->code)
printf ("\033[%s", colors[BACKGROUND]->code);
if (colors[FOREGROUND]->code)
static void
print_clean (const char *line)
{
- const char *p;
- char ***offsets = NULL;
- unsigned int count = 0, i = 0;
+ const char *p = line;
+
+ if (is_esc (p))
+ p = get_end_of_esc (p);
+
+ while (*p != '\0')
+ {
+ const char *text_start = p;
+ const char *text_end = get_end_of_text (p);
+ print_text (text_start, text_end - text_start);
+ p = get_end_of_esc (text_end);
+ }
+}
+
+static bool
+is_esc (const char *p)
+{
+ return gather_esc_offsets (p, NULL, NULL);
+}
+
+static const char *
+get_end_of_esc (const char *p)
+{
+ const char *esc;
+ const char *end = NULL;
+ while ((esc = strchr (p, '\033')))
+ {
+ if (gather_esc_offsets (esc, NULL, &end))
+ break;
+ p = esc + 1;
+ }
+ return end ? end + 1 : p + strlen (p);
+}
+
+static const char *
+get_end_of_text (const char *p)
+{
+ const char *esc;
+ const char *start = NULL;
+ while ((esc = strchr (p, '\033')))
+ {
+ if (gather_esc_offsets (esc, &start, NULL))
+ break;
+ p = esc + 1;
+ }
+ return start ? start : p + strlen (p);
+}
+
+static void
+print_text (const char *p, size_t len)
+{
+ size_t bytes_written;
+ bytes_written = fwrite (p, 1, len, stdout);
+ if (bytes_written != len)
+ vfprintf_fail (formats[FMT_ERROR], (unsigned long)len, "written");
+}
- for (p = line; *p;)
+static bool
+gather_esc_offsets (const char *p, const char **start, const char **end)
+{
+ /* ESC[ */
+ if (*p == 27 && *(p + 1) == '[')
{
- /* ESC[ */
- if (*p == 27 && *(p + 1) == '[')
+ bool valid = false;
+ const char *begin = p;
+ p += 2;
+ if (clean_all)
+ valid = validate_esc_clean_all (&p);
+ else if (clean)
{
- bool check_values, first = true;
- const char *begin = p;
- p += 2;
- if (!isdigit (*p))
- goto END;
+ bool check_values;
+ unsigned int iter = 0;
+ const char *digit;
do {
- const char *digit;
check_values = false;
- if (!first && !isdigit (*p))
- goto DISCARD;
+ iter++;
+ if (!isdigit (*p))
+ break;
digit = p;
while (isdigit (*p))
p++;
if (p - digit > 2)
- goto DISCARD;
+ break;
else /* check range */
{
char val[3];
val[i] = *digit++;
val[i] = '\0';
value = atoi (val);
- if (!((value >= 0 && value <= 8) /* attributes */
- || (value >= 30 && value <= 37) /* foreground colors */
- || (value >= 40 && value <= 47) /* background colors */
- || (value == 39 || value == 49))) /* default colors */
- goto DISCARD;
- }
- if (*p == ';')
- {
- p++;
- check_values = true;
+ valid = validate_esc_clean (value, iter, &p, &check_values);
}
- first = false;
} while (check_values);
- END: if (*p == 'm')
- {
- const char *end = p;
- if (!offsets)
- offsets = xmalloc (++count * sizeof (char **));
- else
- offsets = xrealloc (offsets, ++count * sizeof (char **));
- offsets[i] = xmalloc (2 * sizeof (char *));
- offsets[i][0] = (char *)begin; /* ESC */
- offsets[i][1] = (char *)end; /* m */
- i++;
- }
- DISCARD:
- continue;
}
- p++;
+ if (valid)
+ {
+ if (start)
+ *start = begin;
+ if (end)
+ *end = p;
+ return true;
+ }
}
+ return false;
+}
- if (offsets)
- print_free_offsets (line, offsets, count);
- else
- printf (formats[FMT_GENERIC], line);
+static bool
+validate_esc_clean_all (const char **p)
+{
+ while (isdigit (**p) || **p == ';')
+ (*p)++;
+ return (**p == 'm');
}
-#define SET_CHAR(offset, new, old) \
- *old = *offset; \
- *offset = new; \
+static bool
+validate_esc_clean (int value, unsigned int iter, const char **p, bool *check_values)
+{
+ if (is_reset (value, iter, p))
+ return true;
+ else if (is_bold (value, iter, p))
+ {
+ (*p)++;
+ *check_values = true;
+ return false; /* partial escape sequence, need another valid value */
+ }
+ else if (is_fg_color (value, p))
+ return true;
+ else if (is_bg_color (value, iter, p))
+ return true;
+ else
+ return false;
+}
-#define RESTORE_CHAR(offset, old) \
- *offset = old; \
+static bool
+is_reset (int value, unsigned int iter, const char **p)
+{
+ return (value == 0 && iter == 1 && **p == 'm');
+}
-static void
-print_free_offsets (const char *line, char ***offsets, unsigned int count)
+static bool
+is_bold (int value, unsigned int iter, const char **p)
{
- char ch;
- unsigned int i;
+ return (value == 1 && iter == 1 && **p == ';');
+}
- SET_CHAR (offsets[0][0], '\0', &ch);
- printf (formats[FMT_GENERIC], line);
- RESTORE_CHAR (offsets[0][0], ch);
+static bool
+is_fg_color (int value, const char **p)
+{
+ return (((value >= 30 && value <= 37) || value == 39) && **p == 'm');
+}
- for (i = 0; i < count; i++)
- {
- char ch;
- bool next_offset = false;
- if (i + 1 < count)
- {
- SET_CHAR (offsets[i + 1][0], '\0', &ch);
- next_offset = true;
- }
- printf (formats[FMT_GENERIC], offsets[i][1] + 1);
- if (next_offset)
- RESTORE_CHAR (offsets[i + 1][0], ch);
- }
- for (i = 0; i < count; i++)
- free_null (offsets[i]);
- free_null (offsets);
+static bool
+is_bg_color (int value, unsigned int iter, const char **p)
+{
+ return (((value >= 40 && value <= 47) || value == 49) && iter == 1 && **p == 'm');
}
+#if !DEBUG
static void *
malloc_wrap (size_t size)
{
return p;
}
+static void *
+calloc_wrap (size_t nmemb, size_t size)
+{
+ void *p = calloc (nmemb, size);
+ if (!p)
+ MEM_ALLOC_FAIL ();
+ return p;
+}
+
static void *
realloc_wrap (void *ptr, size_t size)
{
MEM_ALLOC_FAIL ();
return p;
}
-
+#else
static void *
malloc_wrap_debug (size_t size, const char *file, unsigned int line)
{
void *p = malloc (size);
if (!p)
MEM_ALLOC_FAIL_DEBUG (file, line);
+ fprintf (log, "%s: malloc'ed %lu bytes [source file %s, line %u]\n", program_name, (unsigned long)size, file, line);
+ return p;
+}
+
+static void *
+calloc_wrap_debug (size_t nmemb, size_t size, const char *file, unsigned int line)
+{
+ void *p = calloc (nmemb, size);
+ if (!p)
+ MEM_ALLOC_FAIL_DEBUG (file, line);
+ fprintf (log, "%s: calloc'ed %lu bytes [source file %s, line %u]\n", program_name, (unsigned long)(nmemb * size), file, line);
return p;
}
void *p = realloc (ptr, size);
if (!p)
MEM_ALLOC_FAIL_DEBUG (file, line);
+ fprintf (log, "%s: realloc'ed %lu bytes [source file %s, line %u]\n", program_name, (unsigned long)size, file, line);
return p;
}
+#endif /* !DEBUG */
static void
free_wrap (void **ptr)
*ptr = NULL;
}
+#if !DEBUG
+# define do_malloc(len, file, line) malloc_wrap(len)
+#else
+# define do_malloc(len, file, line) malloc_wrap_debug(len, file, line)
+#endif
+
static char *
-strdup_wrap (const char *str)
+strdup_wrap (const char *str, const char *file, unsigned int line)
{
- const unsigned int len = strlen (str) + 1;
- char *p = xmalloc (len);
+ const size_t len = strlen (str) + 1;
+ char *p = do_malloc (len, file, line);
strncpy (p, str, len);
return p;
}
static char *
-str_concat (const char *str1, const char *str2)
+str_concat_wrap (const char *str1, const char *str2, const char *file, unsigned int line)
{
- const unsigned long len = strlen (str1) + strlen (str2) + 1;
+ const size_t len = strlen (str1) + strlen (str2) + 1;
char *p, *str;
- p = str = xmalloc (len);
+ p = str = do_malloc (len, file, line);
strncpy (p, str1, strlen (str1));
p += strlen (str1);
strncpy (p, str2, strlen (str2));
return str;
}
+static bool
+get_bytes_size (unsigned long bytes, struct bytes_size *bytes_size)
+{
+ const char *unit, units[] = { '0', 'K', 'M', 'G', '\0' };
+ unsigned long size = bytes;
+ if (bytes < 1024)
+ return false;
+ unit = units;
+ while (size >= 1024 && *(unit + 1))
+ {
+ size /= 1024;
+ unit++;
+ }
+ bytes_size->size = (unsigned int)size;
+ bytes_size->unit = *unit;
+ return true;
+}
+
+static char *
+get_file_type (mode_t mode)
+{
+ if (S_ISREG (mode))
+ return "file";
+ else if (S_ISDIR (mode))
+ return "directory";
+ else if (S_ISCHR (mode))
+ return "character device";
+ else if (S_ISBLK (mode))
+ return "block device";
+ else if (S_ISFIFO (mode))
+ return "named pipe";
+ else if (S_ISLNK (mode))
+ return "symbolic link";
+ else if (S_ISSOCK (mode))
+ return "socket";
+ else
+ return "file";
+}
+
+static bool
+has_color_name (const char *str, const char *name)
+{
+ char *p;
+
+ assert (strlen (str));
+ assert (strlen (name));
+
+ if (!(*str == *name || *str == toupper (*name)))
+ return false;
+ else if (*(name + 1) != '\0'
+ && !((p = strstr (str + 1, name + 1)) && p == str + 1))
+ return false;
+
+ return true;
+}
+
+static FILE *
+open_file (const char *file, const char *mode)
+{
+ FILE *stream;
+
+ errno = 0;
+ stream = fopen (file, mode);
+ if (!stream)
+ vfprintf_fail (formats[FMT_FILE], file, strerror (errno));
+
+ return stream;
+}
+
+#define DO_VFPRINTF(fmt) \
+ va_list ap; \
+ fprintf (stderr, "%s: ", program_name); \
+ va_start (ap, fmt); \
+ vfprintf (stderr, fmt, ap); \
+ va_end (ap); \
+ fprintf (stderr, "\n"); \
+
+static void
+vfprintf_diag (const char *fmt, ...)
+{
+ DO_VFPRINTF (fmt);
+}
+
static void
vfprintf_fail (const char *fmt, ...)
{
- va_list ap;
- fprintf (stderr, "%s: ", program_name);
- va_start (ap, fmt);
- vfprintf (stderr, fmt, ap);
- va_end (ap);
- fprintf (stderr, "\n");
+ DO_VFPRINTF (fmt);
exit (EXIT_FAILURE);
}