X-Git-Url: http://git.refcnt.org/?p=colorize.git;a=blobdiff_plain;f=colorize.c;h=147e684a3c30aef2c3c9ca3d19975837116bc2ce;hp=c316f17d6023ba48f29b4bef7148254a1498425e;hb=b5ff1ba35b959261c855262b6e820732e72b0bfe;hpb=4fdbee8e6c6763368b779788cb2644304eba2f77 diff --git a/colorize.c b/colorize.c index c316f17..147e684 100644 --- a/colorize.c +++ b/colorize.c @@ -2,7 +2,7 @@ * colorize - Read text from standard input stream or file and print * it colorized through use of ANSI escape sequences * - * Copyright (c) 2011-2014 Steven Schubiger + * Copyright (c) 2011-2018 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 @@ -19,12 +19,15 @@ * */ +#define _DEFAULT_SOURCE #define _BSD_SOURCE #define _XOPEN_SOURCE 700 +#define _FILE_OFFSET_BITS 64 #include #include #include #include +#include #include #include #include @@ -34,6 +37,7 @@ #include #include #include +#include #ifndef DEBUG # define DEBUG 0 @@ -43,21 +47,25 @@ #define to_str(arg) str(arg) #define streq(s1, s2) (strcmp (s1, s2) == 0) +#define strneq(s1, s2, n) (strncmp (s1, s2, n) == 0) #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 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_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 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 BUF_SIZE <= 0 || BUF_SIZE > 65536 +#if defined(BUF_SIZE) && (BUF_SIZE <= 0 || BUF_SIZE > 65536) # undef BUF_SIZE #endif #ifndef BUF_SIZE @@ -67,7 +75,9 @@ #define LF 0x01 #define CR 0x02 -#define SKIP_LINE_ENDINGS(flags) (((flags) & CR) && ((flags) & LF) ? 2 : 1) +#define COUNT_OF(obj, type) (sizeof (obj) / sizeof (type)) + +#define SKIP_LINE_ENDINGS(flags) ((flags) == (CR|LF) ? 2 : 1) #define VALID_FILE_TYPE(mode) (S_ISREG (mode) || S_ISLNK (mode) || S_ISFIFO (mode)) @@ -93,26 +103,51 @@ #define ABORT_TRACE() \ fprintf (stderr, "Aborting in source file %s, line %u\n", __FILE__, __LINE__); \ - abort (); \ + abort (); #define CHECK_COLORS_RANDOM(color1, color2) \ streq (color_names[color1]->name, "random") \ && (streq (color_names[color2]->name, "none") \ - || streq (color_names[color2]->name, "default")) \ + || streq (color_names[color2]->name, "default")) + +#define ALLOC_COMPLETE_PART_LINE 8 + +#if defined(COLOR_SEP_CHAR_COLON) +# define COLOR_SEP_CHAR ':' +#elif defined(COLOR_SEP_CHAR_SLASH) +# define COLOR_SEP_CHAR '/' +#else +# define COLOR_SEP_CHAR '/' +#endif + +#define CONF_FILE ".colorize.conf" + +#if DEBUG +# define DEBUG_FILE "debug.txt" +#endif -#define COLOR_SEP_CHAR '/' +#define MAX_ATTRIBUTE_CHARS (6 * 2) -#define VERSION "0.54" +#define PROGRAM_NAME "colorize" + +#define VERSION "0.64" typedef enum { false, true } bool; +struct conf { + char *attr; + char *color; + char *exclude_random; + char *omit_color_empty; +}; + +enum { DESC_OPTION, DESC_CONF }; + struct color_name { char *name; char *orig; }; -static struct color_name *color_names[3] = { NULL, NULL, NULL }; - struct color { const char *name; const char *code; @@ -148,7 +183,7 @@ struct bytes_size { char unit; }; -enum fmts { +enum { FMT_GENERIC, FMT_STRING, FMT_QUOTE, @@ -156,55 +191,137 @@ enum fmts { FMT_RANDOM, FMT_ERROR, FMT_FILE, - FMT_TYPE + FMT_TYPE, + FMT_CONF }; static const char *formats[] = { - "%s", /* generic */ - "%s '%s'", /* string */ - "%s `%s' %s", /* quote */ - "%s color '%s' %s", /* color */ - "%s color '%s' %s '%s'", /* random */ - "less than %u bytes %s", /* error */ - "%s: %s", /* file */ - "%s: %s: %s", /* type */ + "%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 */ + "%s: option '%s' %s" /* conf */ }; -enum { FOREGROUND, BACKGROUND }; +enum { GENERIC, FOREGROUND = 0, BACKGROUND }; static const struct { - struct color const *entries; + const struct color *entries; unsigned int count; const char *desc; } tables[] = { - { fg_colors, sizeof (fg_colors) / sizeof (struct color), "foreground" }, - { bg_colors, sizeof (bg_colors) / sizeof (struct color), "background" }, + { fg_colors, COUNT_OF (fg_colors, struct color), "foreground" }, + { bg_colors, COUNT_OF (bg_colors, struct color), "background" }, +}; + +static unsigned int opts_set; +enum { + OPT_ATTR_SET = 0x01, + OPT_EXCLUDE_RANDOM_SET = 0x02, + OPT_OMIT_COLOR_EMPTY_SET = 0x04 +}; +static struct { + char *attr; + char *exclude_random; +} opts_arg = { NULL, NULL }; + +enum { + OPT_ATTR = 1, + OPT_CLEAN, + OPT_CLEAN_ALL, + OPT_CONFIG, + OPT_EXCLUDE_RANDOM, + OPT_OMIT_COLOR_EMPTY, + OPT_HELP, + OPT_VERSION +}; +static int opt_type; +static const struct option long_opts[] = { + { "attr", required_argument, &opt_type, OPT_ATTR }, + { "clean", no_argument, &opt_type, OPT_CLEAN }, + { "clean-all", no_argument, &opt_type, OPT_CLEAN_ALL }, + { "config", required_argument, &opt_type, OPT_CONFIG }, + { "exclude-random", required_argument, &opt_type, OPT_EXCLUDE_RANDOM }, + { "omit-color-empty", no_argument, &opt_type, OPT_OMIT_COLOR_EMPTY }, + { "help", no_argument, &opt_type, OPT_HELP }, + { "version", no_argument, &opt_type, OPT_VERSION }, + { NULL, 0, NULL, 0 }, }; -static FILE *stream = NULL; +enum attr_type { + ATTR_BOLD = 0x01, + ATTR_UNDERSCORE = 0x02, + ATTR_BLINK = 0x04, + ATTR_REVERSE = 0x08, + ATTR_CONCEALED = 0x10 +}; +struct attr { + const char *name; + unsigned int val; + enum attr_type type; +}; -static unsigned int stacked_vars = 0; -static void **vars_list = NULL; +static FILE *stream; +#if DEBUG +static FILE *log; +#endif -static bool clean = false; -static bool clean_all = false; +static unsigned int stacked_vars; +static void **vars_list; -static char *exclude = NULL; +static bool clean; +static bool clean_all; +static bool omit_color_empty; + +static char attr[MAX_ATTRIBUTE_CHARS + 1]; +static char *exclude; static const char *program_name; +#if DEBUG +static void print_tstamp (FILE *); +#endif +static void process_opts (int, char **, char **); +static void process_opt_attr (const char *, const bool); +static void write_attr (const struct attr *, unsigned int *, const bool); +static void process_opt_exclude_random (const char *, const bool); +static void parse_conf (const char *, struct conf *); +static void assign_conf (const char *, struct conf *, const char *, char *); +static void init_conf_vars (const struct conf *); +static void init_opts_vars (void); 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_args (unsigned int, char **, bool *, const struct color **, const char **, FILE **); +static void free_conf (struct conf *); +static void process_args (unsigned int, char **, char *, const struct color **, const char **, FILE **, struct conf *); static void process_file_arg (const char *, const char **, FILE **); -static void read_print_stream (bool, const struct color **, const char *, FILE *); +static bool skip_path_colors (const char *, const char *, const struct stat *, const bool); +static void gather_color_names (const char *, char *, struct color_name **); +static void read_print_stream (const char *, const struct color **, const char *, FILE *); +static void merge_print_line (const char *, const char *, FILE *); +static void complete_part_line (const char *, char **, FILE *); +static bool get_next_char (char *, const char **, FILE *, bool *); +static void save_char (char, char **, size_t *, size_t *); static void find_color_entries (struct color_name **, const struct color **); 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_line (const char *, const struct color **, const char * const, unsigned int, bool); 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, unsigned int *, const char **, bool *); +static bool is_reset (int, unsigned int, const char **); +static bool is_attr (int, unsigned 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); @@ -215,50 +332,24 @@ 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 char *expand_string (const char *); 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 = 0; - 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, &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; + unsigned int arg_cnt; const struct color *colors[2] = { NULL, /* foreground */ @@ -267,57 +358,194 @@ main (int argc, char **argv) const char *file = NULL; + char *conf_file = NULL; + struct conf config = { NULL, NULL, NULL, 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"); + print_tstamp (log); +#endif + + attr[0] = '\0'; + + process_opts (argc, argv, &conf_file); + +#ifdef CONF_FILE_TEST + conf_file = to_str (CONF_FILE_TEST); +#elif !defined(TEST) + if (conf_file == NULL) + { + uid_t uid; + struct passwd *passwd; + size_t size; + + uid = getuid (); + errno = 0; + if ((passwd = getpwuid (uid)) == NULL) + { + if (errno == 0) + vfprintf_diag ("password file entry for uid %lu not found", (unsigned long)uid); + else + perror ("getpwuid"); + exit (EXIT_FAILURE); + } + size = strlen (passwd->pw_dir) + 1 + strlen (CONF_FILE) + 1; + conf_file = xmalloc (size); + snprintf (conf_file, size, "%s/%s", passwd->pw_dir, CONF_FILE); + } + else + { + char *s; + if ((s = expand_string (conf_file))) + { + free (conf_file); + conf_file = s; + } + errno = 0; + if (access (conf_file, F_OK) == -1) + vfprintf_fail (formats[FMT_FILE], conf_file, strerror (errno)); + } +#endif +#if defined(CONF_FILE_TEST) || !defined(TEST) + if (access (conf_file, F_OK) != -1) + parse_conf (conf_file, &config); +#endif +#if !defined(CONF_FILE_TEST) && !defined(TEST) + free (conf_file); +#endif + init_conf_vars (&config); + + init_opts_vars (); + + arg_cnt = argc - optind; + + 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) + { + const char *const format = "%s %s"; + const char *const 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) + { + vfprintf_diag ("%u arguments provided, expected 1-2 arguments or clean option", arg_cnt); + print_hint (); + exit (EXIT_FAILURE); + } + } + + if (clean || clean_all) + process_file_arg (argv[optind], &file, &stream); + else + process_args (arg_cnt, &argv[optind], &attr[0], colors, &file, &stream, &config); + read_print_stream (&attr[0], colors, file, stream); + + free_conf (&config); + + RELEASE_VAR (exclude); + + exit (EXIT_SUCCESS); +} + +#if DEBUG +static void +print_tstamp (FILE *log) +{ + time_t t; + struct tm *tm; + char str[128]; + size_t written; + + t = time (NULL); + tm = localtime (&t); + if (tm == NULL) + { + perror ("localtime"); + exit (EXIT_FAILURE); + } + written = strftime (str, sizeof (str), "%Y-%m-%d %H:%M:%S %Z", tm); + if (written == 0) + vfprintf_fail (formats[FMT_GENERIC], "strftime: 0 returned"); + + fprintf (log, "%s\n", str); + while (written--) + fprintf (log, "="); + fprintf (log, "\n"); +} +#endif + +#define DUP_CONFIG() \ + *conf_file = xstrdup (optarg); \ + break; + +#define PRINT_HELP_EXIT() \ + print_help (); \ + exit (EXIT_SUCCESS); + +#define PRINT_VERSION_EXIT() \ + print_version (); \ + exit (EXIT_SUCCESS); + +extern char *optarg; + +static void +process_opts (int argc, char **argv, char **conf_file) +{ + int opt; + while ((opt = getopt_long (argc, argv, "c:hV", long_opts, NULL)) != -1) { - PARSE_OPT: switch (opt) { case 0: /* long opts */ switch (opt_type) { + case OPT_ATTR: + opts_set |= OPT_ATTR_SET; + opts_arg.attr = xstrdup (optarg); + break; 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"); + case OPT_CONFIG: + DUP_CONFIG (); + case OPT_EXCLUDE_RANDOM: + opts_set |= OPT_EXCLUDE_RANDOM_SET; + opts_arg.exclude_random = xstrdup (optarg); + break; + case OPT_OMIT_COLOR_EMPTY: + opts_set |= OPT_OMIT_COLOR_EMPTY_SET; break; - } case OPT_HELP: - print_help (); - exit (EXIT_SUCCESS); + PRINT_HELP_EXIT (); case OPT_VERSION: - print_version (); - exit (EXIT_SUCCESS); + PRINT_VERSION_EXIT (); default: /* never reached */ ABORT_TRACE (); } break; + case 'c': + DUP_CONFIG (); case 'h': - SET_OPT_TYPE (OPT_HELP); - case 'v': - SET_OPT_TYPE (OPT_VERSION); + PRINT_HELP_EXIT (); + case 'V': + PRINT_VERSION_EXIT (); case '?': print_hint (); exit (EXIT_FAILURE); @@ -325,42 +553,239 @@ main (int argc, char **argv) ABORT_TRACE (); } } +} - arg_cnt = argc - optind; +static void +process_opt_attr (const char *p, const bool is_opt) +{ + /* If attributes are added to this "list", also increase MAX_ATTRIBUTE_CHARS! */ + const struct attr attrs[] = { + { "bold", 1, ATTR_BOLD }, + { "underscore", 4, ATTR_UNDERSCORE }, + { "blink", 5, ATTR_BLINK }, + { "reverse", 7, ATTR_REVERSE }, + { "concealed", 8, ATTR_CONCEALED }, + }; + unsigned int attr_types = 0; + const char *desc_type[2] = { "--attr switch", "attr conf option" }; + const unsigned int DESC_TYPE = is_opt ? DESC_OPTION : DESC_CONF; - if (clean || clean_all) + while (*p) { - if (clean && clean_all) - vfprintf_fail (formats[FMT_GENERIC], "--clean and --clean-all switch are mutually exclusive"); - if (arg_cnt > 1) + const char *s; + if (!isalnum (*p)) + vfprintf_fail ("%s must be provided a string", desc_type[DESC_TYPE]); + s = p; + while (isalnum (*p)) + p++; + if (*p != '\0' && *p != ',') + vfprintf_fail ("%s must have strings separated by ,", desc_type[DESC_TYPE]); + else { - 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); + bool valid_attr = false; + unsigned int i; + for (i = 0; i < COUNT_OF (attrs, struct attr); i++) + { + const size_t name_len = strlen (attrs[i].name); + if ((size_t)(p - s) == name_len && strneq (s, attrs[i].name, name_len)) + { + write_attr (&attrs[i], &attr_types, is_opt); + valid_attr = true; + break; + } + } + if (!valid_attr) + { + char *attr_invalid = xmalloc ((p - s) + 1); + STACK_VAR (attr_invalid); + strncpy (attr_invalid, s, p - s); + attr_invalid[p - s] = '\0'; + vfprintf_fail ("%s attribute '%s' is not valid", desc_type[DESC_TYPE], attr_invalid); + RELEASE_VAR (attr_invalid); /* never reached */ + } } + if (*p) + p++; } - else +} + +static void +write_attr (const struct attr *attr_i, unsigned int *attr_types, const bool is_opt) +{ + const unsigned int val = attr_i->val; + const enum attr_type attr_type = attr_i->type; + const char *attr_name = attr_i->name; + + if (*attr_types & attr_type) + vfprintf_fail ("%s has attribute '%s' twice or more", + is_opt ? "--attr switch" : "attr conf option", attr_name); + snprintf (attr + strlen (attr), 3, "%u;", val); + *attr_types |= attr_type; +} + +static void +process_opt_exclude_random (const char *s, const bool is_opt) +{ + bool valid = false; + unsigned int i; + if (exclude) + RELEASE_VAR (exclude); + exclude = xstrdup (s); + STACK_VAR (exclude); + for (i = 1; i < tables[GENERIC].count - 1; i++) /* skip color none and default */ { - if (arg_cnt == 0 || arg_cnt > 2) + const struct color *entry = &tables[GENERIC].entries[i]; + if (streq (exclude, entry->name)) { - vfprintf_diag ("%u arguments provided, expected 1-2 arguments or clean option", arg_cnt); - print_hint (); - exit (EXIT_FAILURE); + valid = true; + break; } } + if (!valid) + vfprintf_fail ("%s must be provided a plain color", + is_opt ? "--exlude-random switch" : "exclude-random conf option"); +} - if (clean || clean_all) - process_file_arg (argv[optind], &file, &stream); - else - process_args (arg_cnt, &argv[optind], &bold, colors, &file, &stream); - read_print_stream (bold, colors, file, stream); +static void +init_opts_vars (void) +{ + if (opts_set & OPT_ATTR_SET) + { + attr[0] = '\0'; /* Clear attr string to discard values from the config file. */ + process_opt_attr (opts_arg.attr, true); + } + if (opts_set & OPT_EXCLUDE_RANDOM_SET) + process_opt_exclude_random (opts_arg.exclude_random, true); + if (opts_set & OPT_OMIT_COLOR_EMPTY_SET) + omit_color_empty = true; - RELEASE_VAR (exclude); + free (opts_arg.attr); + free (opts_arg.exclude_random); +} - exit (EXIT_SUCCESS); +#define IS_SPACE(c) ((c) == ' ' || (c) == '\t') + +static void +parse_conf (const char *conf_file, struct conf *config) +{ + unsigned int cnt = 0; + char line[256 + 1]; + FILE *conf; + + conf = open_file (conf_file, "r"); + + while (fgets (line, sizeof (line), conf)) + { + char *cfg, *val; + char *assign, *comment, *opt, *value; + char *p; + + cnt++; + if (strlen (line) > (sizeof (line) - 2)) + vfprintf_fail ("%s: line %u exceeds maximum of %u characters", conf_file, cnt, (unsigned int)(sizeof (line) - 2)); + if ((p = strrchr (line, '\n'))) + *p = '\0'; +/* NAME PARSING (start) */ + p = line; + /* skip leading spaces and tabs for name */ + while (IS_SPACE (*p)) + p++; + /* skip line if a) string end, b) comment, [cd]) newline */ + if (*p == '\0' || *p == '#' || *p == '\n' || *p == '\r') + continue; + opt = p; + if (!(assign = strchr (opt, '='))) /* check for = */ + { + char *space; + if ((space = strchr (opt, ' '))) + *space = '\0'; + vfprintf_fail (formats[FMT_CONF], conf_file, opt, "not followed by ="); + } + p = assign; + /* skip trailing spaces and tabs for name */ + while (IS_SPACE (*(p - 1))) + p--; + *p = '\0'; +/* NAME PARSING (end) */ +/* NAME VALIDATION (start) */ + for (p = opt; *p; p++) + if (!isalnum (*p) && *p != '-') + vfprintf_fail (formats[FMT_CONF], conf_file, opt, "cannot be made of non-option characters"); +/* NAME VALIDATION (end) */ +/* VALUE PARSING (start) */ + p = assign + 1; + /* skip leading spaces and tabs for value */ + while (IS_SPACE (*p)) + p++; + /* skip line if comment */ + if (*p == '#') + continue; + value = p; + if ((comment = strchr (p, '#'))) + p = comment; + else + p += strlen (p); + /* skip trailing spaces and tabs for value */ + while (IS_SPACE (*(p - 1))) + p--; + *p = '\0'; +/* VALUE PARSING (end) */ + + /* save option name */ + cfg = xstrdup (opt); + /* save option value (allow empty ones) */ + val = strlen (value) ? xstrdup (value) : NULL; + + assign_conf (conf_file, config, cfg, val); + free (cfg); + } + + fclose (conf); +} + +static void +assign_conf (const char *conf_file, struct conf *config, const char *cfg, char *val) +{ + if (streq (cfg, "attr")) + { + free (config->attr); + config->attr = val; + } + else if (streq (cfg, "color")) + { + free (config->color); + config->color = val; + } + else if (streq (cfg, "exclude-random")) + { + free (config->exclude_random); + config->exclude_random = val; + } + else if (streq (cfg, "omit-color-empty")) + { + free (config->omit_color_empty); + config->omit_color_empty = val; + } + else + vfprintf_fail (formats[FMT_CONF], conf_file, cfg, "not recognized"); +} + +static void +init_conf_vars (const struct conf *config) +{ + if (config->attr) + process_opt_attr (config->attr, false); + if (config->exclude_random) + process_opt_exclude_random (config->exclude_random, false); + if (config->omit_color_empty) + { + if (streq (config->omit_color_empty, "yes")) + omit_color_empty = true; + else if (streq (config->omit_color_empty, "no")) + omit_color_empty = false; + else + vfprintf_fail ("omit-color-empty conf option is not valid"); + } } static void @@ -372,6 +797,19 @@ print_hint (void) static void print_help (void) { + struct opt_data { + const char *name; + const char *short_opt; + const char *arg; + }; + const struct opt_data opts_data[] = { + { "attr", NULL, "=ATTR1,ATTR2,..." }, + { "config", "c", "=PATH" }, + { "exclude-random", NULL, "=COLOR" }, + { "help", "h", NULL }, + { "version", "V", NULL }, + }; + const struct option *opt = long_opts; unsigned int i; printf ("Usage: %s (foreground) OR (foreground)%c(background) OR --clean[-all] [-|file]\n\n", program_name, COLOR_SEP_CHAR); @@ -393,11 +831,30 @@ print_help (void) printf ("\twhereas for lower case colors will be of normal intensity.\n"); 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"); + for (; opt->name; opt++) + { + const struct opt_data *opt_data = NULL; + unsigned int i; + for (i = 0; i < COUNT_OF (opts_data, struct opt_data); i++) + if (streq (opt->name, opts_data[i].name)) + { + opt_data = &opts_data[i]; + break; + } + if (opt_data) + { + if (opt_data->short_opt) + printf ("\t\t-%s, --%s", opt_data->short_opt, opt->name); + else + printf ("\t\t --%s", opt->name); + if (opt_data->arg) + printf ("%s", opt_data->arg); + printf ("\n"); + } + else + printf ("\t\t --%s\n", opt->name); + } + printf ("\n"); } static void @@ -406,16 +863,27 @@ print_version (void) #ifdef HAVE_VERSION # include "version.h" #else - const char *version = NULL; + const char *const version = NULL; #endif const char *version_prefix, *version_string; - const char *c_flags; + const char *c_flags, *ld_flags, *cpp_flags; + const char *const desc_flags_unknown = "unknown"; struct bytes_size bytes_size; bool debug; #ifdef CFLAGS c_flags = to_str (CFLAGS); #else - c_flags = "unknown"; + c_flags = desc_flags_unknown; +#endif +#ifdef LDFLAGS + ld_flags = to_str (LDFLAGS); +#else + ld_flags = desc_flags_unknown; +#endif +#ifdef CPPFLAGS + cpp_flags = to_str (CPPFLAGS); +#else + cpp_flags = desc_flags_unknown; #endif #if DEBUG debug = true; @@ -424,9 +892,11 @@ print_version (void) #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 ("%s %s%s (compiled at %s, %s)\n", PROGRAM_NAME, version_prefix, version_string, __DATE__, __TIME__); printf ("Compiler flags: %s\n", c_flags); + printf ("Linker flags: %s\n", ld_flags); + printf ("Preprocessor flags: %s\n", cpp_flags); if (get_bytes_size (BUF_SIZE, &bytes_size)) { if (BUF_SIZE % 1024 == 0) @@ -437,24 +907,25 @@ print_version (void) } else printf ("Buffer size: %lu byte%s\n", (unsigned long)BUF_SIZE, BUF_SIZE > 1 ? "s" : ""); + printf ("Color separator: '%c'\n", COLOR_SEP_CHAR); printf ("Debugging: %s\n", debug ? "yes" : "no"); } static void cleanup (void) { - free_color_names (color_names); - 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); } } @@ -465,95 +936,200 @@ free_color_names (struct color_name **color_names) unsigned int i; for (i = 0; color_names[i]; i++) { - free_null (color_names[i]->name); - free_null (color_names[i]->orig); - free_null (color_names[i]); + RELEASE_VAR (color_names[i]->name); + RELEASE_VAR (color_names[i]->orig); + RELEASE_VAR (color_names[i]); } } static void -process_args (unsigned int arg_cnt, char **arg_strings, bool *bold, const struct color **colors, const char **file, FILE **stream) +free_conf (struct conf *config) { + free (config->attr); + free (config->color); + free (config->exclude_random); + free (config->omit_color_empty); +} + +static void +process_args (unsigned int arg_cnt, char **arg_strings, char *attr, const struct color **colors, const char **file, FILE **stream, struct conf *config) +{ + bool use_conf_color; int ret; - unsigned int index; - char *color, *p, *str; + char *p; struct stat sb; + struct color_name *color_names[3] = { + NULL, /* foreground */ + NULL, /* background */ + NULL, /* sentinel value */ + }; 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); + assert (color_string != NULL); if (streq (color_string, "-")) { if (file_string) vfprintf_fail (formats[FMT_GENERIC], "hyphen cannot be used as color string"); else - vfprintf_fail (formats[FMT_GENERIC], "hyphen must be preceeded by color string"); + vfprintf_fail (formats[FMT_GENERIC], "hyphen must be preceded by color string"); + } + + if ((ret = lstat (color_string, &sb)) == 0) /* exists */ + /* Ensure that we don't fail if there's a file with one or more + color names in its path. */ + use_conf_color = skip_path_colors (color_string, file_string, &sb, !!config->color); + + /* Use color from config file. */ + if (arg_cnt == 1 + && (access (color_string, F_OK) != -1) + && use_conf_color) + { + file_string = color_string; + color_string = config->color; + } + + if ((p = strchr (color_string, COLOR_SEP_CHAR))) + { + if (p == color_string) + 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_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); + } + + gather_color_names (color_string, attr, color_names); + + assert (color_names[FOREGROUND] != NULL); + + if (color_names[BACKGROUND]) + { + unsigned int i; + const unsigned int color_sets[2][2] = { { FOREGROUND, BACKGROUND }, { BACKGROUND, FOREGROUND } }; + for (i = 0; i < 2; i++) + { + 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); + } + } + + find_color_entries (color_names, colors); + assert (colors[FOREGROUND] != NULL); + free_color_names (color_names); + + if (!colors[FOREGROUND]->code && colors[BACKGROUND] && colors[BACKGROUND]->code) + { + struct color_name color_name; + color_name.name = color_name.orig = "default"; + + find_color_entry (&color_name, FOREGROUND, colors); + assert (colors[FOREGROUND]->code != NULL); + } + + process_file_arg (file_string, file, stream); +} + +static void +process_file_arg (const char *file_string, const char **file, FILE **stream) +{ + if (file_string) + { + if (streq (file_string, "-")) + *stream = stdin; + else + { + const char *file = file_string; + struct stat sb; + int ret; + + errno = 0; + ret = stat (file, &sb); + + if (ret == -1) + vfprintf_fail (formats[FMT_FILE], file, strerror (errno)); + + if (!VALID_FILE_TYPE (sb.st_mode)) + vfprintf_fail (formats[FMT_TYPE], file, "unrecognized type", get_file_type (sb.st_mode)); + + *stream = open_file (file, "r"); + } + *file = file_string; + } + else + { + *stream = stdin; + *file = "stdin"; } - ret = lstat (color_string, &sb); + assert (*stream != NULL); + assert (*file != NULL); +} - /* Ensure that we don't fail if there's a file with one or more - color names in its path. */ - if (ret != -1) - { - bool have_file; - unsigned int c; - const char *color = color_string; - const mode_t mode = sb.st_mode; +static bool +skip_path_colors (const char *color_string, const char *file_string, const struct stat *sb, const bool has_conf) +{ + 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 (c = 1; c <= 2 && *color; c++) + { + bool matched = false; + unsigned int i; + for (i = 0; i < tables[GENERIC].count; i++) { - bool matched = false; - unsigned int i; - for (i = 0; i < tables[FOREGROUND].count; i++) - { - const struct color *entry = &tables[FOREGROUND].entries[i]; - if (has_color_name (color, entry->name)) - { - color += strlen (entry->name); - matched = true; - break; - } - } - if (!matched && has_color_name (color, "random")) + const struct color *entry = &tables[GENERIC].entries[i]; + if (has_color_name (color, entry->name)) { - color += strlen ("random"); + color += strlen (entry->name); matched = true; + break; } - if (matched && *color == COLOR_SEP_CHAR && *(color + 1)) - color++; - else - break; } + if (!matched && has_color_name (color, "random")) + { + color += strlen ("random"); + matched = true; + } + if (matched && *color == COLOR_SEP_CHAR && *(color + 1)) + color++; + else + break; + } - have_file = (*color != '\0'); + have_file = (*color != '\0'); - if (have_file) + if (have_file) + { + const char *file_existing = color_string; + if (file_string) + vfprintf_fail (formats[FMT_QUOTE], get_file_type (mode), file_existing, "cannot be used as color string"); + else { - const char *file_exists = color_string; - if (file_string) - vfprintf_fail (formats[FMT_QUOTE], get_file_type (mode), file_exists, "cannot be used as color string"); - else + if (VALID_FILE_TYPE (mode)) { - 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 (has_conf) + return true; + vfprintf_fail (formats[FMT_QUOTE], get_file_type (mode), file_existing, "must be preceded by color string"); } + else + vfprintf_fail (formats[FMT_QUOTE], get_file_type (mode), file_existing, "is not a valid file type"); } } + return false; +} - if ((p = strchr (color_string, COLOR_SEP_CHAR))) - { - if (p == color_string) - 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_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); - } +static void +gather_color_names (const char *color_string, char *attr, struct color_name **color_names) +{ + unsigned int index; + char *color, *p, *str; str = xstrdup (color_string); STACK_VAR (str); @@ -570,7 +1146,7 @@ process_args (unsigned int arg_cnt, char **arg_strings, bool *bold, const struct } else p = color + strlen (color); - assert (p); + assert (p != NULL); for (ch = color; *ch; ch++) if (!isalpha (*ch)) @@ -588,116 +1164,35 @@ process_args (unsigned int arg_cnt, char **arg_strings, bool *bold, const struct switch (index) { case FOREGROUND: - *bold = true; + snprintf (attr + strlen (attr), 3, "1;"); break; case BACKGROUND: vfprintf_fail (formats[FMT_COLOR], tables[BACKGROUND].desc, color, "cannot be bold"); - break; default: /* never reached */ ABORT_TRACE (); } } color_names[index] = xcalloc (1, sizeof (struct color_name)); + STACK_VAR (color_names[index]); color_names[index]->orig = xstrdup (color); + STACK_VAR (color_names[index]->orig); for (ch = color; *ch; ch++) *ch = tolower (*ch); color_names[index]->name = xstrdup (color); + STACK_VAR (color_names[index]->name); } RELEASE_VAR (str); - - assert (color_names[FOREGROUND]); - - if (color_names[BACKGROUND]) - { - unsigned int i; - 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]; - 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); - } - } - - find_color_entries (color_names, colors); - free_color_names (color_names); - - if (!colors[FOREGROUND]->code && colors[BACKGROUND] && colors[BACKGROUND]->code) - { - struct color_name color_name; - color_name.name = color_name.orig = "default"; - - find_color_entry (&color_name, FOREGROUND, colors); - } - - process_file_arg (file_string, file, stream); -} - -static void -process_file_arg (const char *file_string, const char **file, FILE **stream) -{ - if (file_string) - { - if (streq (file_string, "-")) - *stream = stdin; - else - { - FILE *s; - const char *file = file_string; - struct stat sb; - int ret; - - errno = 0; - ret = lstat (file, &sb); - - if (ret == -1) - vfprintf_fail (formats[FMT_FILE], file, strerror (errno)); - - 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; - } - *file = file_string; - } - else - { - *stream = stdin; - *file = "stdin"; - } - - assert (*stream); - assert (*file); } -#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) +read_print_stream (const char *attr, const struct color **colors, const char *file, FILE *stream) { - char buf[BUF_SIZE + 1], *part_line = NULL; + char buf[BUF_SIZE + 1]; unsigned int flags = 0; while (!feof (stream)) @@ -705,14 +1200,15 @@ read_print_stream (bool bold, const struct color **colors, const char *file, FIL size_t bytes_read; char *eol; const char *line; - 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"); + buf[bytes_read] = '\0'; line = buf; while ((eol = strpbrk (line, "\n\r"))) { - char *p; + const bool has_text = (eol > line); + const char *p; flags &= ~(CR|LF); if (*eol == '\r') { @@ -722,30 +1218,161 @@ read_print_stream (bool bold, const struct color **colors, const char *file, FIL } else if (*eol == '\n') flags |= LF; - else + else /* never reached */ vfprintf_fail (formats[FMT_FILE], file, "unrecognized line ending"); p = eol + SKIP_LINE_ENDINGS (flags); *eol = '\0'; - MERGE_PRINT_LINE (part_line, line, flags, false); + print_line (attr, colors, line, flags, + omit_color_empty ? has_text : true); line = p; } - if (feof (stream)) { - MERGE_PRINT_LINE (part_line, line, 0, true); - } + if (feof (stream)) + { + if (*line != '\0') + print_line (attr, colors, line, 0, true); + } else if (*line != '\0') { - if (!clean && !clean_all) /* efficiency */ - print_line (bold, colors, line, 0); - else if (!part_line) - part_line = xstrdup (line); + char *p; + if ((clean || clean_all) && (p = strrchr (line, '\033'))) + merge_print_line (line, p, stream); else - { - char *merged_line = str_concat (part_line, line); - free (part_line); - part_line = merged_line; - } + print_line (attr, colors, line, 0, true); + } + } +} + +static void +merge_print_line (const char *line, const char *p, FILE *stream) +{ + char *buf = NULL; + char *merged_esc = NULL; + const char *esc = ""; + const char char_restore = *p; + + complete_part_line (p + 1, &buf, stream); + + if (buf) + { + /* form escape sequence */ + esc = merged_esc = str_concat (p, buf); + /* shorten partial line accordingly */ + *(char *)p = '\0'; + free (buf); + } + +#ifdef TEST_MERGE_PART_LINE + printf ("%s%s", line, esc); + fflush (stdout); + _exit (EXIT_SUCCESS); +#else + print_clean (line); + *(char *)p = char_restore; + print_clean (esc); + free (merged_esc); +#endif +} + +static void +complete_part_line (const char *p, char **buf, FILE *stream) +{ + bool got_next_char = false, read_from_stream; + char ch; + size_t i = 0, size; + + if (get_next_char (&ch, &p, stream, &read_from_stream)) + { + if (ch == '[') + { + if (read_from_stream) + save_char (ch, buf, &i, &size); + } + else + { + if (read_from_stream) + ungetc ((int)ch, stream); + return; /* cancel */ + } + } + else + return; /* cancel */ + + while (get_next_char (&ch, &p, stream, &read_from_stream)) + { + if (isdigit (ch) || ch == ';') + { + if (read_from_stream) + save_char (ch, buf, &i, &size); + } + else /* got next character */ + { + got_next_char = true; + break; + } + } + + if (got_next_char) + { + if (ch == 'm') + { + if (read_from_stream) + save_char (ch, buf, &i, &size); + } + else + { + if (read_from_stream) + ungetc ((int)ch, stream); + return; /* cancel */ + } + } + else + return; /* cancel */ +} + +static bool +get_next_char (char *ch, const char **p, FILE *stream, bool *read_from_stream) +{ + if (**p == '\0') + { + int c; + if ((c = fgetc (stream)) != EOF) + { + *ch = (char)c; + *read_from_stream = true; + return true; + } + else + { + *read_from_stream = false; + return false; } } + else + { + *ch = **p; + (*p)++; + *read_from_stream = false; + return true; + } +} + +static void +save_char (char ch, char **buf, size_t *i, size_t *size) +{ + if (!*buf) + { + *size = ALLOC_COMPLETE_PART_LINE; + *buf = xmalloc (*size); + } + /* +1: effective occupied size of buffer */ + else if ((*i + 1) == *size) + { + *size *= 2; + *buf = xrealloc (*buf, *size); + } + (*buf)[*i] = ch; + (*buf)[*i + 1] = '\0'; + (*i)++; } static void @@ -817,18 +1444,19 @@ find_color_entry (const struct color_name *color_name, unsigned int index, const } static void -print_line (bool bold, const struct color **colors, const char *const line, unsigned int flags) +print_line (const char *attr, const struct color **colors, const char *const line, unsigned int flags, bool emit_colors) { /* --clean[-all] */ if (clean || clean_all) print_clean (line); - else + /* skip for --omit-color-empty? */ + else if (emit_colors) { /* 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) - printf ("\033[%s%s%s\033[0m", bold ? "1;" : "", colors[FOREGROUND]->code, line); + printf ("\033[%s%s%s\033[0m", attr, colors[FOREGROUND]->code, line); else printf (formats[FMT_GENERIC], line); } @@ -841,136 +1469,166 @@ print_line (bool bold, const struct color **colors, const char *const line, unsi static void print_clean (const char *line) { - const char *p; - char ***offsets = NULL; - unsigned int count = 0, i = 0; + const char *p = line; - for (p = line; *p;) + if (is_esc (p)) + p = get_end_of_esc (p); + + while (*p != '\0') { - /* ESC[ */ - if (*p == 27 && *(p + 1) == '[') - { - const char *begin = p; - p += 2; - if (clean_all) - { - while (isdigit (*p) || *p == ';') - p++; - } - else if (clean) - { - bool check_values; - unsigned int iter = 0; - const char *digit; - do { - check_values = false; - iter++; - if (!isdigit (*p)) - goto DISCARD; - digit = p; - while (isdigit (*p)) - p++; - if (p - digit > 2) - goto DISCARD; - else /* check range */ - { - char val[3]; - int value; - unsigned int i; - const unsigned int digits = p - digit; - for (i = 0; i < digits; i++) - val[i] = *digit++; - val[i] = '\0'; - value = atoi (val); - if (value == 0) /* reset */ - { - if (iter > 1) - goto DISCARD; - goto END; - } - else if (value == 1) /* bold */ - { - bool discard = false; - if (iter > 1) - discard = true; - else if (*p != ';') - discard = true; - if (discard) - goto DISCARD; - p++; - check_values = true; - } - else if ((value >= 30 && value <= 37) || value == 39) /* foreground colors */ - goto END; - else if ((value >= 40 && value <= 47) || value == 49) /* background colors */ - { - if (iter > 1) - goto DISCARD; - goto END; - } - else - goto DISCARD; - } - } while (iter == 1 && 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++; - continue; - } - DISCARD: - continue; - } - p++; + 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); } +} - if (offsets) - print_free_offsets (line, offsets, count); - else - printf (formats[FMT_GENERIC], line); +static bool +is_esc (const char *p) +{ + return gather_esc_offsets (p, NULL, NULL); } -#define SET_CHAR(offset, new, old) \ - *old = *offset; \ - *offset = new; \ +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); +} -#define RESTORE_CHAR(offset, old) \ - *offset = old; \ +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_free_offsets (const char *line, char ***offsets, unsigned int count) +print_text (const char *p, size_t len) { - char ch; - unsigned int i; - - SET_CHAR (offsets[0][0], '\0', &ch); - printf (formats[FMT_GENERIC], line); - RESTORE_CHAR (offsets[0][0], ch); + 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 (i = 0; i < count; i++) +static bool +gather_esc_offsets (const char *p, const char **start, const char **end) +{ + /* ESC[ */ + if (*p == 27 && *(p + 1) == '[') { - char ch; - bool next_offset = false; - if (i + 1 < count) + bool valid = false; + const char *const begin = p; + p += 2; + if (clean_all) + valid = validate_esc_clean_all (&p); + else if (clean) + { + bool check_values; + unsigned int prev_iter, iter; + const char *digit; + prev_iter = iter = 0; + do { + check_values = false; + iter++; + if (!isdigit (*p)) + break; + digit = p; + while (isdigit (*p)) + p++; + if (p - digit > 2) + break; + else /* check range */ + { + char val[3]; + int value; + unsigned int i; + const unsigned int digits = p - digit; + for (i = 0; i < digits; i++) + val[i] = *digit++; + val[i] = '\0'; + value = atoi (val); + valid = validate_esc_clean (value, iter, &prev_iter, &p, &check_values); + } + } while (check_values); + } + if (valid) { - SET_CHAR (offsets[i + 1][0], '\0', &ch); - next_offset = true; + if (start) + *start = begin; + if (end) + *end = p; + return 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); + return false; +} + +static bool +validate_esc_clean_all (const char **p) +{ + while (isdigit (**p) || **p == ';') + (*p)++; + return (**p == 'm'); +} + +static bool +validate_esc_clean (int value, unsigned int iter, unsigned int *prev_iter, const char **p, bool *check_values) +{ + if (is_reset (value, iter, p)) + return true; + else if (is_attr (value, iter, *prev_iter, p)) + { + (*p)++; + *check_values = true; + *prev_iter = iter; + 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; +} + +static bool +is_reset (int value, unsigned int iter, const char **p) +{ + return (value == 0 && iter == 1 && **p == 'm'); +} + +static bool +is_attr (int value, unsigned int iter, unsigned int prev_iter, const char **p) +{ + return ((value > 0 && value < 10) && (iter - prev_iter == 1) && **p == ';'); +} + +static bool +is_fg_color (int value, const char **p) +{ + return (((value >= 30 && value <= 37) || value == 39) && **p == 'm'); +} + +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 @@ -1001,13 +1659,14 @@ realloc_wrap (void *ptr, size_t size) return p; } #else +static const char *const format_debug = "%s: %10s %7lu bytes [source file %s, line %5u]\n"; 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); - vfprintf_diag ("malloc'ed %lu bytes [source file %s, line %u]", (unsigned long)size, file, line); + fprintf (log, format_debug, program_name, "malloc'ed", (unsigned long)size, file, line); return p; } @@ -1017,7 +1676,7 @@ calloc_wrap_debug (size_t nmemb, size_t size, const char *file, unsigned int lin void *p = calloc (nmemb, size); if (!p) MEM_ALLOC_FAIL_DEBUG (file, line); - vfprintf_diag ("calloc'ed %lu bytes [source file %s, line %u]", (unsigned long)(nmemb * size), file, line); + fprintf (log, format_debug, program_name, "calloc'ed", (unsigned long)(nmemb * size), file, line); return p; } @@ -1027,7 +1686,7 @@ realloc_wrap_debug (void *ptr, size_t size, const char *file, unsigned int line) void *p = realloc (ptr, size); if (!p) MEM_ALLOC_FAIL_DEBUG (file, line); - vfprintf_diag ("realloc'ed %lu bytes [source file %s, line %u]", (unsigned long)size, file, line); + fprintf (log, format_debug, program_name, "realloc'ed", (unsigned long)size, file, line); return p; } #endif /* !DEBUG */ @@ -1039,22 +1698,28 @@ 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 size_t len = strlen (str) + 1; - char *p = xmalloc (len); + 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 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)); @@ -1064,6 +1729,20 @@ str_concat (const char *str1, const char *str2) return str; } +static char * +expand_string (const char *str) +{ + char *s = NULL; + wordexp_t p; + + wordexp (str, &p, 0); + if (p.we_wordc >= 1) + s = xstrdup (p.we_wordv[0]); + wordfree (&p); + + return s; +} + static bool get_bytes_size (unsigned long bytes, struct bytes_size *bytes_size) { @@ -1108,16 +1787,29 @@ has_color_name (const char *str, const char *name) { char *p; - assert (strlen (str)); - assert (strlen (name)); + assert (strlen (str) > 0); + assert (strlen (name) > 0); if (!(*str == *name || *str == toupper (*name))) return false; else if (*(name + 1) != '\0' && !((p = strstr (str + 1, name + 1)) && p == str + 1)) return false; + else + return true; +} - 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) \ @@ -1126,7 +1818,7 @@ has_color_name (const char *str, const char *name) va_start (ap, fmt); \ vfprintf (stderr, fmt, ap); \ va_end (ap); \ - fprintf (stderr, "\n"); \ + fprintf (stderr, "\n"); static void vfprintf_diag (const char *fmt, ...)