From: Steven Schubiger Date: Fri, 13 Sep 2019 19:15:22 +0000 (+0200) Subject: Merge branch 'config_file' X-Git-Tag: v0.65~14 X-Git-Url: http://git.refcnt.org/?p=colorize.git;a=commitdiff_plain;h=b5ff1ba35b959261c855262b6e820732e72b0bfe;hp=763a5a99b3af4161cd1dd4c7ee2c450c4b6137a5 Merge branch 'config_file' --- diff --git a/README b/README index 4fcf139..20c1f00 100644 --- a/README +++ b/README @@ -56,6 +56,12 @@ file provided here for the `tee' invocation will be populated with the captured output from both standard output and error stream. +Configuration File +------------------ +A user configuration file may be populated with options and +according values. See man page source file `colorize.1' for +details. + Documentation ------------- See man page source file: colorize.1. diff --git a/colorize.1 b/colorize.1 index f3341ed..02ffe2e 100644 --- a/colorize.1 +++ b/colorize.1 @@ -1,4 +1,4 @@ -.TH COLORIZE 1 "2019-02-23" "colorize v0.64" "User Commands" +.TH COLORIZE 1 "2019-09-01" "colorize v0.64" "User Commands" .SH NAME colorize \- colorize text on terminal with ANSI escape sequences .SH SYNOPSIS @@ -40,6 +40,9 @@ clean text from color escape sequences emitted by colorize .BR \-\-clean\-all clean text from all valid color escape sequences .TP +.BR \-c ", " \-\-config=\fIPATH\fR +alternate configuration file location +.TP .BR \-\-exclude\-random=\fICOLOR\fR text color to be excluded when selecting a random foreground color .TP @@ -51,6 +54,57 @@ show help screen and exit .TP .BR \-V ", " \-\-version display version data and exit +.SH FILES +.TP +.B ~/.colorize.conf +user configuration file +.PP +.RS +If the aforementioned file exists, it is read, parsed and processed +prior to handling the command-line options. Command-line options +override configuration values, but are currently not capable of +unsetting them. If unsetting is desired, comment them out or remove +them. +.RE +.PP +.RS +.B Sample configuration file +.RS +.nf +# ~/.colorize.conf +attr = bold,underscore +color = magenta # favorite one +exclude-random = black +omit-color-empty = yes +.fi +.RE +.RE +.PP +.RS +.B Configurable options and values +.RS +.nf +attr (values same as command-line option) +color (value same as command-line colors) +exclude-random (value same as command-line option) +omit-color-empty (yes/no) +.fi +.RE +.RE +.PP +.RS +.B Syntax +.RS +Each line ought to start with a name of an option, followed by = and +an optional value. Leaving the value blank, unsets the option. +.PP +Whitespace is allowed before the option name, after the option name, +before the option value and after the option value. +.PP +Comments may be placed before or after the option is set. Everything +following the '#' sign is treated as being commented out. +.RE +.RE .SH NOTES The list of color escape sequence codes being emitted and omitted is as follows: diff --git a/colorize.c b/colorize.c index 356fc01..147e684 100644 --- a/colorize.c +++ b/colorize.c @@ -27,6 +27,7 @@ #include #include #include +#include #include #include #include @@ -36,6 +37,7 @@ #include #include #include +#include #ifndef DEBUG # define DEBUG 0 @@ -118,6 +120,8 @@ # define COLOR_SEP_CHAR '/' #endif +#define CONF_FILE ".colorize.conf" + #if DEBUG # define DEBUG_FILE "debug.txt" #endif @@ -130,6 +134,15 @@ 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; @@ -178,7 +191,8 @@ enum { FMT_RANDOM, FMT_ERROR, FMT_FILE, - FMT_TYPE + FMT_TYPE, + FMT_CONF }; static const char *formats[] = { "%s", /* generic */ @@ -189,6 +203,7 @@ static const char *formats[] = { "less than %lu bytes %s", /* error */ "%s: %s", /* file */ "%s: %s: %s", /* type */ + "%s: option '%s' %s" /* conf */ }; enum { GENERIC, FOREGROUND = 0, BACKGROUND }; @@ -202,10 +217,22 @@ static const struct { { 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, @@ -216,6 +243,7 @@ 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 }, @@ -256,17 +284,23 @@ static const char *program_name; #if DEBUG static void print_tstamp (FILE *); #endif -static void process_opts (int, char **); -static void process_opt_attr (const char *); -static void write_attr (const struct attr *, unsigned int *); +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 **, char *, 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 skip_path_colors (const char *, const char *, const struct stat *); +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 *); @@ -300,6 +334,7 @@ static void *realloc_wrap_debug (void *, size_t, const char *, unsigned int); static void free_wrap (void **); 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 *); @@ -323,6 +358,9 @@ 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); @@ -335,7 +373,54 @@ main (int argc, char **argv) attr[0] = '\0'; - process_opts (argc, argv); + 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; @@ -366,9 +451,11 @@ main (int argc, char **argv) if (clean || clean_all) process_file_arg (argv[optind], &file, &stream); else - process_args (arg_cnt, &argv[optind], &attr[0], colors, &file, &stream); + 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); @@ -401,6 +488,10 @@ print_tstamp (FILE *log) } #endif +#define DUP_CONFIG() \ + *conf_file = xstrdup (optarg); \ + break; + #define PRINT_HELP_EXIT() \ print_help (); \ exit (EXIT_SUCCESS); @@ -412,10 +503,10 @@ print_tstamp (FILE *log) extern char *optarg; static void -process_opts (int argc, char **argv) +process_opts (int argc, char **argv, char **conf_file) { int opt; - while ((opt = getopt_long (argc, argv, "hV", long_opts, NULL)) != -1) + while ((opt = getopt_long (argc, argv, "c:hV", long_opts, NULL)) != -1) { switch (opt) { @@ -423,7 +514,8 @@ process_opts (int argc, char **argv) switch (opt_type) { case OPT_ATTR: - process_opt_attr (optarg); + opts_set |= OPT_ATTR_SET; + opts_arg.attr = xstrdup (optarg); break; case OPT_CLEAN: clean = true; @@ -431,26 +523,14 @@ process_opts (int argc, char **argv) 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[GENERIC].count - 1; i++) /* skip color none and default */ - { - const struct color *entry = &tables[GENERIC].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: - omit_color_empty = true; + opts_set |= OPT_OMIT_COLOR_EMPTY_SET; break; case OPT_HELP: PRINT_HELP_EXIT (); @@ -460,6 +540,8 @@ process_opts (int argc, char **argv) ABORT_TRACE (); } break; + case 'c': + DUP_CONFIG (); case 'h': PRINT_HELP_EXIT (); case 'V': @@ -474,7 +556,7 @@ process_opts (int argc, char **argv) } static void -process_opt_attr (const char *p) +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[] = { @@ -485,17 +567,19 @@ process_opt_attr (const char *p) { "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; while (*p) { const char *s; if (!isalnum (*p)) - vfprintf_fail (formats[FMT_GENERIC], "--attr switch must be provided a string"); + vfprintf_fail ("%s must be provided a string", desc_type[DESC_TYPE]); s = p; while (isalnum (*p)) p++; if (*p != '\0' && *p != ',') - vfprintf_fail (formats[FMT_GENERIC], "--attr switch must have strings separated by ,"); + vfprintf_fail ("%s must have strings separated by ,", desc_type[DESC_TYPE]); else { bool valid_attr = false; @@ -505,7 +589,7 @@ process_opt_attr (const char *p) 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); + write_attr (&attrs[i], &attr_types, is_opt); valid_attr = true; break; } @@ -516,7 +600,7 @@ process_opt_attr (const char *p) STACK_VAR (attr_invalid); strncpy (attr_invalid, s, p - s); attr_invalid[p - s] = '\0'; - vfprintf_fail ("--attr switch attribute '%s' is not valid", attr_invalid); + vfprintf_fail ("%s attribute '%s' is not valid", desc_type[DESC_TYPE], attr_invalid); RELEASE_VAR (attr_invalid); /* never reached */ } } @@ -526,18 +610,184 @@ process_opt_attr (const char *p) } static void -write_attr (const struct attr *attr_i, unsigned int *attr_types) +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 ("--attr switch has attribute '%s' twice or more", attr_name); + 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 */ + { + const struct color *entry = &tables[GENERIC].entries[i]; + if (streq (exclude, entry->name)) + { + valid = true; + break; + } + } + if (!valid) + vfprintf_fail ("%s must be provided a plain color", + is_opt ? "--exlude-random switch" : "exclude-random conf option"); +} + +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; + + free (opts_arg.attr); + free (opts_arg.exclude_random); +} + +#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 print_hint (void) { @@ -554,6 +804,7 @@ print_help (void) }; const struct opt_data opts_data[] = { { "attr", NULL, "=ATTR1,ATTR2,..." }, + { "config", "c", "=PATH" }, { "exclude-random", NULL, "=COLOR" }, { "help", "h", NULL }, { "version", "V", NULL }, @@ -593,9 +844,12 @@ print_help (void) if (opt_data) { if (opt_data->short_opt) - printf ("\t\t-%s, --%s\n", opt_data->short_opt, opt->name); + printf ("\t\t-%s, --%s", opt_data->short_opt, opt->name); else - printf ("\t\t --%s%s\n", opt->name, opt_data->arg); + 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); @@ -689,8 +943,18 @@ free_color_names (struct color_name **color_names) } static void -process_args (unsigned int arg_cnt, char **arg_strings, char *attr, 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; char *p; struct stat sb; @@ -713,12 +977,19 @@ process_args (unsigned int arg_cnt, char **arg_strings, char *attr, const struct vfprintf_fail (formats[FMT_GENERIC], "hyphen must be preceded by color string"); } - ret = lstat (color_string, &sb); + 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); - /* Ensure that we don't fail if there's a file with one or more - color names in its path. */ - if (ret == 0) /* success */ - skip_path_colors (color_string, file_string, &sb); + /* 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))) { @@ -799,8 +1070,8 @@ process_file_arg (const char *file_string, const char **file, FILE **stream) assert (*file != NULL); } -static void -skip_path_colors (const char *color_string, const char *file_string, const struct stat *sb) +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; @@ -842,11 +1113,16 @@ skip_path_colors (const char *color_string, const char *file_string, const struc else { if (VALID_FILE_TYPE (mode)) - vfprintf_fail (formats[FMT_QUOTE], get_file_type (mode), file_existing, "must be preceded by color string"); + { + 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; } static void @@ -1453,6 +1729,20 @@ str_concat_wrap (const char *str1, const char *str2, const char *file, unsigned 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) { diff --git a/doc/colorize.html b/doc/colorize.html index c32c762..381ddb0 100644 --- a/doc/colorize.html +++ b/doc/colorize.html @@ -31,6 +31,7 @@ Usage: ./colorize (foreground) OR (foreground)/(background) OR --clean[-all] [-| --attr=ATTR1,ATTR2,... --clean --clean-all + -c, --config=PATH --exclude-random=COLOR --omit-color-empty -h, --help @@ -102,7 +103,7 @@ permitted by applicable law. 
 [sts@apollo ~/colorize]$ ./colorize --version
-colorize v0.63-5-gadd8a17 (compiled at Feb  1 2018, 17:05:52)
+colorize v0.64-17-ga3c5c67 (compiled at Sep 10 2019, 21:32:03)
 Compiler flags: "-ansi -pedantic "
 Linker flags: ""
 Preprocessor flags: ""
diff --git a/t/conf/attr_clear.t b/t/conf/attr_clear.t
new file mode 100755
index 0000000..7bbe5f9
--- /dev/null
+++ b/t/conf/attr_clear.t
@@ -0,0 +1,31 @@
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+use lib qw(lib);
+
+use Colorize::Common qw(:defaults $write_to_tmpfile);
+use File::Temp qw(tmpnam);
+use Test::More;
+
+my $tests = 1;
+
+plan tests => $tests;
+
+SKIP: {
+    my $program = tmpnam();
+    my $conf_file = tmpnam();
+
+    skip 'compiling failed (attr clear)', $tests unless system(qq($compiler -DTEST -DCONF_FILE_TEST=\"$conf_file\" -o $program $source)) == 0;
+
+    my $infile = $write_to_tmpfile->('foo');
+
+    open(my $fh, '>', $conf_file) or die "Cannot open `$conf_file' for writing: $!\n";
+    print {$fh} "attr=blink\n";
+    close($fh);
+
+    is(qx($program default --attr=bold $infile), "\e[1;39mfoo\e[0m", 'discard conf attr string');
+
+    unlink $program;
+    unlink $conf_file;
+}
diff --git a/t/conf/color.t b/t/conf/color.t
new file mode 100755
index 0000000..3adfd5b
--- /dev/null
+++ b/t/conf/color.t
@@ -0,0 +1,33 @@
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+use lib qw(lib);
+
+use Colorize::Common qw(:defaults $write_to_tmpfile);
+use File::Temp qw(tmpnam);
+use Test::More;
+
+my $tests = 3;
+
+plan tests => $tests;
+
+SKIP: {
+    my $program = tmpnam();
+    my $conf_file = tmpnam();
+
+    skip 'compiling failed (color)', $tests unless system(qq($compiler -DTEST -DCONF_FILE_TEST=\"$conf_file\" -o $program $source)) == 0;
+
+    my $infile = $write_to_tmpfile->('foo');
+
+    open(my $fh, '>', $conf_file) or die "Cannot open `$conf_file' for writing: $!\n";
+    print {$fh} "color=green\n";
+    close($fh);
+
+    is(qx($program $infile), "\e[32mfoo\e[0m", 'color from config');
+    is(qx(printf %s "foo" | $program none/none), 'foo', 'read from stdin');
+    is(qx($program none/none $infile), 'foo', 'read from file');
+
+    unlink $program;
+    unlink $conf_file;
+}
diff --git a/t/conf/fail.t b/t/conf/fail.t
new file mode 100755
index 0000000..d3b8852
--- /dev/null
+++ b/t/conf/fail.t
@@ -0,0 +1,59 @@
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+use lib qw(lib);
+use constant true  => 1;
+use constant false => 0;
+
+use Colorize::Common qw(:defaults $write_to_tmpfile);
+use File::Temp qw(tmpnam);
+use IPC::Open3 qw(open3);
+use Symbol qw(gensym);
+use Test::More;
+
+my $tests = 7;
+
+my $run_program_fail = sub
+{
+    my ($program, $message, $infile) = @_;
+
+    my $err = gensym;
+
+    my $pid = open3(gensym, gensym, $err, $program, qw(default), $infile);
+    waitpid($pid, 0);
+
+    my $output = do { local $/; <$err> };
+
+    return ($? >> 8 == 1 && $output =~ /$message/) ? true : false;
+};
+
+plan tests => $tests;
+
+SKIP: {
+    my $program = tmpnam();
+    my $conf_file = tmpnam();
+
+    skip 'compiling failed (config failure exit)', $tests unless system(qq($compiler -DTEST -DCONF_FILE_TEST=\"$conf_file\" -o $program $source)) == 0;
+
+    my $infile = $write_to_tmpfile->('');
+
+    my @set = (
+        [ 'attr=:',                  'attr conf option must be provided a string'                ],
+        [ 'attr=bold:underscore',    'attr conf option must have strings separated by ,'         ],
+        [ 'attr=b0ld',               'attr conf option attribute \'b0ld\' is not valid'          ],
+        [ 'attr=b0ld,underscore',    'attr conf option attribute \'b0ld\' is not valid'          ], # handle comma
+        [ 'attr=bold,bold',          'attr conf option has attribute \'bold\' twice or more'     ],
+        [ 'exclude-random=random',   'exclude-random conf option must be provided a plain color' ],
+        [ 'omit-color-empty=unsure', 'omit-color-empty conf option is not valid'                 ],
+    );
+    foreach my $set (@set) {
+        open(my $fh, '>', $conf_file) or die "Cannot open `$conf_file' for writing: $!\n";
+        print {$fh} $set->[0], "\n";
+        close($fh);
+        ok($run_program_fail->($program, $set->[1], $infile), $set->[1]);
+    }
+
+    unlink $program;
+    unlink $conf_file;
+}
diff --git a/t/conf/param.t b/t/conf/param.t
new file mode 100755
index 0000000..520df2b
--- /dev/null
+++ b/t/conf/param.t
@@ -0,0 +1,51 @@
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+use lib qw(lib);
+
+use Colorize::Common qw(:defaults $write_to_tmpfile);
+use File::Temp qw(tmpnam);
+use Test::More;
+
+my $tests = 2;
+
+my $conf = <<'EOT';
+attr=bold
+color=blue
+omit-color-empty=yes
+EOT
+
+my $expected = <<"EOT";
+\e[1;34mfoo\e[0m
+
+\e[1;34mbar\e[0m
+
+\e[1;34mbaz\e[0m
+EOT
+
+plan tests => $tests;
+
+SKIP: {
+    my $program = tmpnam();
+    my $conf_file = tmpnam();
+                                                                    # -DTEST omitted on purpose
+    skip 'compiling failed (config param)', $tests unless system(qq($compiler -o $program $source)) == 0;
+
+    my $infile = $write_to_tmpfile->(<<'EOT');
+foo
+
+bar
+
+baz
+EOT
+    open(my $fh, '>', $conf_file) or die "Cannot open `$conf_file' for writing: $!\n";
+    print {$fh} $conf;
+    close($fh);
+
+    is(qx($program -c $conf_file $infile),       $expected, 'short option');
+    is(qx($program --config=$conf_file $infile), $expected, 'long option');
+
+    unlink $program;
+    unlink $conf_file;
+}
diff --git a/t/conf/parse/fail.t b/t/conf/parse/fail.t
new file mode 100755
index 0000000..ea267f8
--- /dev/null
+++ b/t/conf/parse/fail.t
@@ -0,0 +1,63 @@
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+use lib qw(lib);
+use constant true  => 1;
+use constant false => 0;
+
+use Colorize::Common qw(:defaults $write_to_tmpfile);
+use File::Temp qw(tmpnam);
+use IPC::Open3 qw(open3);
+use Symbol qw(gensym);
+use Test::More;
+
+my $tests = 8;
+
+my $run_program_fail = sub
+{
+    my ($program, $message, $infile) = @_;
+
+    my $err = gensym;
+
+    my $pid = open3(gensym, gensym, $err, $program, qw(default), $infile);
+    waitpid($pid, 0);
+
+    my $output = do { local $/; <$err> };
+
+    return ($? >> 8 == 1 && $output =~ /$message/) ? true : false;
+};
+
+plan tests => $tests;
+
+SKIP: {
+    my $program = tmpnam();
+    my $conf_file = tmpnam();
+
+    skip 'compiling failed (config parse failure)', $tests unless system(qq($compiler -DTEST -DCONF_FILE_TEST=\"$conf_file\" -o $program $source)) == 0;
+
+    my $infile = $write_to_tmpfile->('');
+
+    my $chars_exceed = 'x' x 256;
+
+    my @set = (
+        [ '[attr=bold',            'option \'\[attr\' cannot be made of non-option characters' ],
+        [ 'attr1=bold',            'option \'attr1\' not recognized'                           ],
+        [ 'color1=magenta',        'option \'color1\' not recognized'                          ],
+        [ 'exclude-random1=black', 'option \'exclude-random1\' not recognized'                 ],
+        [ 'omit-color-empty1=yes', 'option \'omit-color-empty1\' not recognized'               ],
+        [ 'attr',                  'option \'attr\' not followed by ='                         ],
+        [ 'attr bold',             'option \'attr\' not followed by ='                         ],
+        [ "color=$chars_exceed",   'line 1 exceeds maximum of'                                 ],
+    );
+
+    foreach my $set (@set) {
+        open(my $fh, '>', $conf_file) or die "Cannot open `$conf_file' for writing: $!\n";
+        print {$fh} $set->[0], "\n";
+        close($fh);
+        ok($run_program_fail->($program, $set->[1], $infile), $set->[1]);
+    }
+
+    unlink $program;
+    unlink $conf_file;
+}
diff --git a/t/conf/parse/success.t b/t/conf/parse/success.t
new file mode 100755
index 0000000..fe2d46d
--- /dev/null
+++ b/t/conf/parse/success.t
@@ -0,0 +1,74 @@
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+use lib qw(lib);
+use constant true  => 1;
+use constant false => 0;
+
+use Colorize::Common qw(:defaults $write_to_tmpfile);
+use File::Temp qw(tmpnam);
+use IPC::Open3 qw(open3);
+use Symbol qw(gensym);
+use Test::More;
+
+my $tests = 21;
+
+my $conf = <<'EOT';
+# comment
+ # comment
+	# comment
+attr=bold
+attr =bold
+attr= bold
+attr	=bold
+attr=	bold
+attr = bold
+ color=green
+color=green 
+	color=green
+color=green	
+exclude-random=black
+omit-color-empty=yes
+attr=bold # comment
+attr=bold	# comment
+attr=
+color=
+exclude-random=
+omit-color-empty=
+EOT
+
+my $run_program_succeed = sub
+{
+    my ($program, $infile) = @_;
+
+    my $err = gensym;
+
+    my $pid = open3(gensym, gensym, $err, $program, qw(default), $infile);
+    waitpid($pid, 0);
+
+    my $output = do { local $/; <$err> };
+
+    return ($? >> 8 == 0 && $output eq '') ? true : false;
+};
+
+plan tests => $tests;
+
+SKIP: {
+    my $program = tmpnam();
+    my $conf_file = tmpnam();
+
+    skip 'compiling failed (config parse success)', $tests unless system(qq($compiler -DTEST -DCONF_FILE_TEST=\"$conf_file\" -o $program $source)) == 0;
+
+    my $infile = $write_to_tmpfile->('');
+
+    foreach my $line (split /\n/, $conf) {
+        open(my $fh, '>', $conf_file) or die "Cannot open `$conf_file' for writing: $!\n";
+        print {$fh} $line, "\n";
+        close($fh);
+        ok($run_program_succeed->($program, $infile), $line);
+    }
+
+    unlink $program;
+    unlink $conf_file;
+}
diff --git a/t/conf/use.t b/t/conf/use.t
new file mode 100755
index 0000000..0a695df
--- /dev/null
+++ b/t/conf/use.t
@@ -0,0 +1,57 @@
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+use lib qw(lib);
+
+use Colorize::Common qw(:defaults $write_to_tmpfile);
+use File::Temp qw(tmpnam);
+use Test::More;
+
+my $tests = 21;
+
+my $conf = <<'EOT';
+attr=underscore
+color=yellow # tested also in color.t
+omit-color-empty=yes
+EOT
+
+plan tests => $tests;
+
+SKIP: {
+    my $program = tmpnam();
+    my $conf_file = tmpnam();
+
+    skip 'compiling failed (use config)', $tests unless system(qq($compiler -DTEST -DCONF_FILE_TEST=\"$conf_file\" -o $program $source)) == 0;
+
+    my $infile1 = $write_to_tmpfile->(<<'EOT');
+foo
+
+bar
+
+baz
+EOT
+    open(my $fh, '>', $conf_file) or die "Cannot open `$conf_file' for writing: $!\n";
+    print {$fh} $conf;
+    close($fh);
+
+    is(qx($program $infile1), <<"EOT", 'use config');
+\e[4;33mfoo\e[0m
+
+\e[4;33mbar\e[0m
+
+\e[4;33mbaz\e[0m
+EOT
+    my $infile2 = $write_to_tmpfile->('foo');
+
+    open($fh, '>', $conf_file) or die "Cannot open `$conf_file' for writing: $!\n";
+    print {$fh} "exclude-random=black\n";
+    close($fh);
+
+    for (my $i = 1; $i <= 20; $i++) {
+        like(qx($program random $infile2), qr/^\e\[3[1-7]mfoo\e\[0m$/, 'use exclude-random');
+    }
+
+    unlink $program;
+    unlink $conf_file;
+}
diff --git a/t/merge.t b/t/merge.t
index 848c022..a234b12 100755
--- a/t/merge.t
+++ b/t/merge.t
@@ -103,7 +103,7 @@ my $compile = sub
     my ($buf_size) = @_;
     return true if exists $programs{$buf_size};
     my $program = tmpnam();
-    return false unless system("$compiler -DTEST_MERGE_PART_LINE -DBUF_SIZE=$buf_size -o $program $source") == 0;
+    return false unless system("$compiler -DTEST -DTEST_MERGE_PART_LINE -DBUF_SIZE=$buf_size -o $program $source") == 0;
     $programs{$buf_size} = $program;
     return true; # compiling succeeded
 };
@@ -147,7 +147,7 @@ foreach my $test (@pushback) {
     my $buf_size = $test->[1];
     SKIP: {
         my $program = tmpnam();
-        skip $compiling_failed_msg, 1 unless system("$compiler -DBUF_SIZE=$buf_size -o $program $source") == 0;
+        skip $compiling_failed_msg, 1 unless system("$compiler -DTEST -DBUF_SIZE=$buf_size -o $program $source") == 0;
         ok(qx(printf %s "$test->[0]" | $program --clean) eq $test->[0], 'pushback: ' . $test_name->($test->[0], $buf_size));
         unlink $program;
     }
diff --git a/test.pl b/test.pl
index 85e12b5..0ed7436 100755
--- a/test.pl
+++ b/test.pl
@@ -7,6 +7,7 @@ use constant true  => 1;
 use constant false => 0;
 
 use Colorize::Common qw(:defaults $compiler_flags %BUF_SIZE $valgrind_command $write_to_tmpfile);
+use File::Find;
 use File::Temp qw(tmpnam);
 use Getopt::Long qw(:config no_auto_abbrev no_ignore_case);
 use Test::Harness qw(runtests);
@@ -28,8 +29,9 @@ my $valgrind_cmd = '';
 }
 
 {
-    my @test_files = glob('t/*.t');
-    eval { runtests(@test_files) } or warn $@;
+    my @test_files;
+    find ({ wanted => sub { push @test_files, $File::Find::name if /\.t$/ } }, 't');
+    eval { runtests(sort @test_files) } or warn $@;
 }
 
 plan tests => $tests;