11084634932

Committed 28 Sep 2024 02:22PM UTC coverage: 87.312% (-1.6%) from 88.939%

Build # 11084634932

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tsjensen

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Updates based on @msaft's comments

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/src/boxes.c

/*
 * boxes - Command line filter to draw/remove ASCII boxes around text
 * Copyright (c) 1999-2024 Thomas Jensen and the boxes contributors
 *
 * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public
 * License, version 3, as published by the Free Software Foundation.
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
 * details.
 * You should have received a copy of the GNU General Public License along with this program.
 * If not, see <https://www.gnu.org/licenses/>.
 *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 */

#include "config.h"

#ifndef __MINGW32__
#include <ncurses.h>
#endif
#include <locale.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <uniconv.h>
#include <unistd.h>
#ifdef _WIN32
#include <windows.h>
#endif

#include "boxes.h"
#include "bxstring.h"
#include "cmdline.h"
#include "discovery.h"
#include "generate.h"
#include "input.h"
#include "list.h"
#include "logging.h"
#include "parsing.h"
#include "query.h"
#include "remove.h"
#include "shape.h"
#include "tools.h"
#include "unicode.h"



/*       _\|/_
         (o o)
 +----oOO-{_}-OOo------------------------------------------------------------+
 |                    G l o b a l   V a r i a b l e s                        |
 +--------------------------------------------------------------------------*/

design_t *designs = NULL;            /* available box designs */
int num_designs = 0;                 /* number of designs after parsing */

opt_t opt;                           /* command line options */

input_t input;                       /* input lines */

int color_output_enabled;            /* Flag indicating if ANSI color codes should be printed (1) or not (0) */



/*       _\|/_
         (o o)
 +----oOO-{_}-OOo------------------------------------------------------------+
 |                           F u n c t i o n s                               |
 +--------------------------------------------------------------------------*/


static int build_design(design_t **adesigns, const char *cld)
/*
 *  Build a box design.
 *
 *      adesigns    Pointer to global designs list
 *      cld         the W shape as specified on the command line
 *
 *  Builds the global design list containing only one design which was
 *  built from the -c command line definition.
 *
 *  RETURNS:  != 0   on error (out of memory)
 *            == 0   on success
 *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 */
{
    design_t *dp;                        /* pointer to design to be created */
    sentry_t *c;                         /* pointer to current shape */
    int i;
    int rc;

    *adesigns = (design_t *) calloc(1, sizeof(design_t));
    if (*adesigns == NULL) {
        perror(PROJECT);
        return 1;
    }
    dp = *adesigns;                      /* for readability */

    dp->name = "<Command Line Definition>";
    dp->aliases = (char **) calloc(1, sizeof(char *));
    dp->sample = bxs_from_ascii("n/a");
    dp->indentmode = DEF_INDENTMODE;
    dp->padding[BLEF] = 1;
    dp->defined_in = bxs_from_ascii("(command line)");

    dp->tags = (char **) calloc(2, sizeof(char *));
    dp->tags[0] = "transient";

    /* We always use UTF-8, which is correct for Linux and MacOS, and for modern Windows configured for UTF-8. */
    uint32_t *cld_u32 = u32_strconv_from_arg(cld, "UTF-8");
    bxstr_t *cldW = bxs_from_unicode(cld_u32);
    BFREE(cld_u32);

    dp->shape[W].name = W;
    dp->shape[W].height = 1;
    dp->shape[W].width = cldW->num_columns;
    dp->shape[W].elastic = 1;
    rc = genshape(dp->shape[W].width, dp->shape[W].height, &(dp->shape[W].chars), &(dp->shape[W].mbcs));
    if (rc) {
        return rc;
    }
    bxs_free(dp->shape[W].mbcs[0]);
    dp->shape[W].mbcs[0] = cldW;
    strcpy(dp->shape[W].chars[0], cld);

    for (i = 0; i < NUM_SHAPES; ++i) {
        c = dp->shape + i;

        if (i == NNW || i == NNE || i == WNW || i == ENE || i == W
                || i == WSW || i == ESE || i == SSW || i == SSE) {
                    continue;
        }

        switch (i) {
            case NW:
            case SW:
                c->width = dp->shape[W].width;
                c->height = 1;
                c->elastic = 0;
                break;

            case NE:
            case SE:
                c->width = 1;
                c->height = 1;
                c->elastic = 0;
                break;

            case N:
            case S:
            case E:
                c->width = 1;
                c->height = 1;
                c->elastic = 1;
                break;

            default:
                fprintf(stderr, "%s: internal error\n", PROJECT);
                return 1;
        }
        c->name = i;

        rc = genshape(c->width, c->height, &(c->chars), &(c->mbcs));
        if (rc) {
            return rc;
        }
    }

    dp->maxshapeheight = 1;
    dp->minwidth = dp->shape[W].width + 2;
    dp->minheight = 3;

    return 0;
}



/**
 * Process command line options and store the result in the global `opt` struct. May exit the program.
 */
static void handle_command_line(int argc, char *argv[])
{
    log_debug(__FILE__, MAIN, "Processing Command Line ...\n");

    opt_t *parsed_opts = process_commandline(argc, argv);
    if (parsed_opts == NULL) {
        exit(EXIT_FAILURE);
    }
    if (parsed_opts->help) {
        usage_long(stdout);
        exit(EXIT_SUCCESS);
    }
    if (parsed_opts->version_requested) {
        printf("%s version %s\n", PROJECT, VERSION);
        exit(EXIT_SUCCESS);
    }
    memcpy(&opt, parsed_opts, sizeof(opt_t));
    BFREE(parsed_opts);
}



/**
 * Parse config file(s), then reset design pointer. May exit the program.
 */
static void handle_config_parsing()
{
    bxstr_t *config_file = discover_config_file(0);
    if (config_file == NULL) {
        exit(EXIT_FAILURE);
    }
    if (opt.cld == NULL) {
        size_t r_num_designs = 0;
        designs = parse_config_files(config_file, &r_num_designs);
        if (designs == NULL) {
            exit(EXIT_FAILURE);
        }
        num_designs = (int) r_num_designs;
    }
    else {
        int rc = build_design(&designs, opt.cld);
        if (rc) {
            exit(EXIT_FAILURE);
        }
        num_designs = 1;
    }
    BFREE (opt.design);
    opt.design = designs;
}



/**
 * Adjust box size to command line specification.
 * Increase box width/height by width/height of empty sides in order to match appearance of box with the user's
 * expectations (if -s).
 */
static void apply_expected_size()
{
    if (opt.reqheight > (long) opt.design->minheight) {
        opt.design->minheight = opt.reqheight;
    }
    if (opt.reqwidth > (long) opt.design->minwidth) {
        opt.design->minwidth = opt.reqwidth;
    }
    if (opt.reqwidth) {
        if (empty_side(opt.design->shape, BRIG)) {
            opt.design->minwidth += opt.design->shape[SE].width;
        }
        if (empty_side(opt.design->shape, BLEF)) {
            opt.design->minwidth += opt.design->shape[NW].width;
        }
    }
    if (opt.reqheight) {
        if (empty_side(opt.design->shape, BTOP)) {
            opt.design->minheight += opt.design->shape[NW].height;
        }
        if (empty_side(opt.design->shape, BBOT)) {
            opt.design->minheight += opt.design->shape[SE].height;
        }
    }
}



/**
 * Read all input lines and store the result in the global `input` structure. May exit the program.
 */
static void handle_input()
{
    log_debug(__FILE__, MAIN, "Reading all input ...\n");

    input_t *raw_input = NULL;
    if (opt.mend != 0) {
        raw_input = read_all_input();
        if (raw_input == NULL) {
            exit(EXIT_FAILURE);
        }
    }
    if (analyze_input(raw_input ? raw_input : &input)) {
        exit(EXIT_FAILURE);
    }
    if (raw_input) {
        memcpy(&input, raw_input, sizeof(input_t));
        BFREE(raw_input);
    }

    if (is_debug_logging(MAIN)) {
        log_debug(__FILE__, MAIN, "Effective encoding: %s\n", encoding);
        print_input_lines(NULL);
    }
    if (input.num_lines == 0) {
        exit(EXIT_SUCCESS);
    }
}



/**
 * Adjust box size to fit requested padding value.
 * Command line-specified box size takes precedence over padding.
 */
static void adjust_size_and_padding()
{
    for (int i = 0; i < NUM_SIDES; ++i) {
        if (opt.padding[i] > -1) {
            opt.design->padding[i] = opt.padding[i];
        }
    }

    size_t pad = opt.design->padding[BTOP] + opt.design->padding[BBOT];
    if (pad > 0) {
        pad += input.num_lines;
        pad += opt.design->shape[NW].height + opt.design->shape[SW].height;
        if (pad > opt.design->minheight) {
            if (opt.reqheight) {
                for (int i = 0; i < (int) (pad - opt.design->minheight); ++i) {
                    if (opt.design->padding[i % 2 ? BBOT : BTOP]) {
                        opt.design->padding[i % 2 ? BBOT : BTOP] -= 1;
                    } else if (opt.design->padding[i % 2 ? BTOP : BBOT]) {
                        opt.design->padding[i % 2 ? BTOP : BBOT] -= 1;
                    } else {
                        break;
                    }
                }
            }
            else {
                opt.design->minheight = pad;
            }
        }
    }

    pad = opt.design->padding[BLEF] + opt.design->padding[BRIG];
    if (pad > 0) {
        pad += input.maxline;
        pad += opt.design->shape[NW].width + opt.design->shape[NE].width;
        if (pad > opt.design->minwidth) {
            if (opt.reqwidth) {
                for (int i = 0; i < (int) (pad - opt.design->minwidth); ++i) {
                    if (opt.design->padding[i % 2 ? BRIG : BLEF]) {
                        opt.design->padding[i % 2 ? BRIG : BLEF] -= 1;
                    } else if (opt.design->padding[i % 2 ? BLEF : BRIG]) {
                        opt.design->padding[i % 2 ? BLEF : BRIG] -= 1;
                    } else {
                        break;
                    }
                }
            }
            else {
                opt.design->minwidth = pad;
            }
        }
    }
}



/**
 * Generate box. May exit the program.
 */
static void handle_generate_box()
{
    log_debug(__FILE__, MAIN, "Generating Box ...\n");

    sentry_t *thebox = (sentry_t *) calloc(NUM_SIDES, sizeof(sentry_t));
    if (thebox == NULL) {
        perror(PROJECT);
        exit(EXIT_FAILURE);
    }
    int rc = generate_box(thebox);
    if (rc) {
        exit(EXIT_FAILURE);
    }
    output_box(thebox);
}



/**
 * Remove box. May exit the program.
 */
static void handle_remove_box()
{
    log_debug(__FILE__, MAIN, "Removing Box ...\n");

    if (opt.killblank == -1) {
        if (empty_side(opt.design->shape, BTOP) && empty_side(opt.design->shape, BBOT)) {
            opt.killblank = 0;
        } else {
            opt.killblank = 1;
        }
    }
    int rc = remove_box();
    if (rc) {
        exit(EXIT_FAILURE);
    }
    rc = apply_substitutions(&input, 1);
    if (rc) {
        exit(EXIT_FAILURE);
    }
    output_input(opt.mend > 0);
}



#ifndef __MINGW32__
    /* These two functions are actually declared in term.h, but for some reason, that can't be included. */
    extern NCURSES_EXPORT(int) setupterm(NCURSES_CONST char *, int, int *);
    extern NCURSES_EXPORT(int) tigetnum(NCURSES_CONST char *);
#endif

static int terminal_has_colors()
{
    int result = 0;
    char *termtype = getenv("TERM");
    #ifdef __MINGW32__
        result = 1; /* On Windows, we always assume color capability. */
        UNUSED(termtype);
    #else
        if (termtype != NULL && setupterm(termtype, STDOUT_FILENO, NULL) == OK && tigetnum("colors") >= 8) {
            result = 1;
        }
    #endif

    if (is_debug_logging(MAIN)) {
        #ifdef __MINGW32__
            int num_colors = 1;
        #else
            int num_colors = result ? tigetnum("colors") : 0;
        #endif
        log_debug(__FILE__, MAIN, "Terminal \"%s\" %s colors (number of colors = %d).\n",
                termtype != NULL ? termtype : "(null)", result ? "has" : "does NOT have", num_colors);
    }
    return result;
}



static int check_color_support(int opt_color)
{
    int result = 0;
    if (opt_color == force_ansi_color) {
        result = 1;
    }
    else if (opt_color == color_from_terminal) {
        result = terminal_has_colors();
    }

    log_debug(__FILE__, MAIN, "Color support %sabled\n", result ? "\x1b[92mEN\x1b[0m" : "DIS");
    return result;
}



/**
 * Switch from default "C" encoding to system encoding.
 */
static void activateSystemEncoding()
{
    #ifdef _WIN32
        SetConsoleOutputCP(CP_ACP);
        SetConsoleCP(CP_ACP);  
        /* If it should one day turn out that this doesn't have the desired effect, try setlocale(LC_ALL, ".UTF8"). */
    #else
        setlocale(LC_ALL, "");
    #endif
}



/*       _\|/_
         (o o)
 +----oOO-{_}-OOo------------------------------------------------------------+
 |                       P r o g r a m   S t a r t                           |
 +--------------------------------------------------------------------------*/

int main(int argc, char *argv[])
{
    int rc;                           /* general return code */
    int saved_designwidth;            /* opt.design->minwith backup, used for mending */
    int saved_designheight;           /* opt.design->minheight backup, used for mending */

    log_debug(__FILE__, MAIN, "BOXES STARTING ...\n"); /* TODO This line will never execute, because debug not on yet */

    /* Temporarily set the system encoding, for proper output of --help text etc. */
    activateSystemEncoding();
    encoding = locale_charset();

    handle_command_line(argc, argv);

    /* Store system character encoding */
    encoding = check_encoding(opt.encoding, locale_charset());
    log_debug(__FILE__, MAIN, "Character Encoding = %s\n", encoding);

    color_output_enabled = check_color_support(opt.color);

    handle_config_parsing();

    /* If "-l" option was given, list designs and exit. */
    if (opt.l) {
        rc = list_designs();
        exit(rc);
    }

    /* If "-q" option was given, print results of tag query and exit. */
    if (opt.query != NULL && opt.query[0] != NULL) {
        rc = query_by_tag();
        exit(rc);
    }

    apply_expected_size();
    if (opt.indentmode) {
        opt.design->indentmode = opt.indentmode;
    }
    saved_designwidth = opt.design->minwidth;
    saved_designheight = opt.design->minheight;

    do {
        if (opt.mend == 1) {  /* Mending a box works in two phases: */
            opt.r = 0;        /* opt.mend == 2: remove box          */
        }
        --opt.mend;           /* opt.mend == 1: add it back         */
        opt.design->minwidth = saved_designwidth;
        opt.design->minheight = saved_designheight;

        handle_input();

        adjust_size_and_padding();

        if (opt.r) {
            handle_remove_box();
        }
        else {
            handle_generate_box();
        }
    } while (opt.mend > 0);

    return EXIT_SUCCESS;
}

/* vim: set sw=4: */

1	/*
2	* boxes - Command line filter to draw/remove ASCII boxes around text
3	* Copyright (c) 1999-2024 Thomas Jensen and the boxes contributors
4	*
5	* This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public
6	* License, version 3, as published by the Free Software Foundation.
7	* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
8	* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
9	* details.
10	* You should have received a copy of the GNU General Public License along with this program.
11	* If not, see <https://www.gnu.org/licenses/>.
12	*
13	* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
14	*/
15
16	#include "config.h"
17
18	#ifndef __MINGW32__
19	#include <ncurses.h>
20	#endif
21	#include <locale.h>
22	#include <stdio.h>
23	#include <stdlib.h>
24	#include <string.h>
25	#include <uniconv.h>
26	#include <unistd.h>
27	#ifdef _WIN32
28	#include <windows.h>
29	#endif
30
31	#include "boxes.h"
32	#include "bxstring.h"
33	#include "cmdline.h"
34	#include "discovery.h"
35	#include "generate.h"
36	#include "input.h"
37	#include "list.h"
38	#include "logging.h"
39	#include "parsing.h"
40	#include "query.h"
41	#include "remove.h"
42	#include "shape.h"
43	#include "tools.h"
44	#include "unicode.h"
45
46
47
48	/* _\\|/_
49	(o o)
50	+----oOO-{_}-OOo------------------------------------------------------------+
51	\| G l o b a l V a r i a b l e s \|
52	+--------------------------------------------------------------------------*/
53
54	design_t designs = NULL; / available box designs */
55	int num_designs = 0; /* number of designs after parsing */
56
57	opt_t opt; /* command line options */
58
59	input_t input; /* input lines */
60
61	int color_output_enabled; /* Flag indicating if ANSI color codes should be printed (1) or not (0) */
62
63
64
65	/* _\\|/_
66	(o o)
67	+----oOO-{_}-OOo------------------------------------------------------------+
68	\| F u n c t i o n s \|
69	+--------------------------------------------------------------------------*/
70
71
72	static int build_design(design_t *adesigns, const char cld)	8✔
73	/*
74	* Build a box design.
75	*
76	* adesigns Pointer to global designs list
77	* cld the W shape as specified on the command line
78	*
79	* Builds the global design list containing only one design which was
80	* built from the -c command line definition.
81	*
82	* RETURNS: != 0 on error (out of memory)
83	* == 0 on success
84	*
85	* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
86	*/
87	{
88	design_t dp; / pointer to design to be created */
89	sentry_t c; / pointer to current shape */
90	int i;
91	int rc;
92
93	adesigns = (design_t ) calloc(1, sizeof(design_t));	8✔
94	if (*adesigns == NULL) {	8✔
95	perror(PROJECT);	×
96	return 1;	×
97	}
98	dp = adesigns; / for readability */	8✔
99
100	dp->name = "<Command Line Definition>";	8✔
101	dp->aliases = (char *) calloc(1, sizeof(char ));	8✔
102	dp->sample = bxs_from_ascii("n/a");	8✔
103	dp->indentmode = DEF_INDENTMODE;	8✔
104	dp->padding[BLEF] = 1;	8✔
105	dp->defined_in = bxs_from_ascii("(command line)");	8✔
106
107	dp->tags = (char *) calloc(2, sizeof(char ));	8✔
108	dp->tags[0] = "transient";	8✔
109
110	/* We always use UTF-8, which is correct for Linux and MacOS, and for modern Windows configured for UTF-8. */
111	uint32_t *cld_u32 = u32_strconv_from_arg(cld, "UTF-8");	8✔
112	bxstr_t *cldW = bxs_from_unicode(cld_u32);	8✔
113	BFREE(cld_u32);	8✔
114
115	dp->shape[W].name = W;	8✔
116	dp->shape[W].height = 1;	8✔
117	dp->shape[W].width = cldW->num_columns;	8✔
118	dp->shape[W].elastic = 1;	8✔
119	rc = genshape(dp->shape[W].width, dp->shape[W].height, &(dp->shape[W].chars), &(dp->shape[W].mbcs));	8✔
120	if (rc) {	8!
121	return rc;	×
122	}
123	bxs_free(dp->shape[W].mbcs[0]);	8✔
124	dp->shape[W].mbcs[0] = cldW;	8✔
125	strcpy(dp->shape[W].chars[0], cld);	8✔
126
127	for (i = 0; i < NUM_SHAPES; ++i) {	136✔
128	c = dp->shape + i;	128✔
129
130	if (i == NNW \|\| i == NNE \|\| i == WNW \|\| i == ENE \|\| i == W	160✔
131	\|\| i == WSW \|\| i == ESE \|\| i == SSW \|\| i == SSE) {	92✔
132	continue;	72✔
133	}
134
135	switch (i) {	56✔
136	case NW:	8✔
137	case SW:
138	c->width = dp->shape[W].width;	16✔
139	c->height = 1;	16✔
140	c->elastic = 0;	16✔
141	break;	16✔
142
143	case NE:	8✔
144	case SE:
145	c->width = 1;	16✔
146	c->height = 1;	16✔
147	c->elastic = 0;	16✔
148	break;	16✔
149
150	case N:	12✔
151	case S:
152	case E:
153	c->width = 1;	24✔
154	c->height = 1;	24✔
155	c->elastic = 1;	24✔
156	break;	24✔
157
158	default:
159	fprintf(stderr, "%s: internal error\n", PROJECT);	×
160	return 1;	×
161	}
162	c->name = i;	56✔
163
164	rc = genshape(c->width, c->height, &(c->chars), &(c->mbcs));	56✔
165	if (rc) {	56✔
166	return rc;	×
167	}
168	}	28✔
169
170	dp->maxshapeheight = 1;	8✔
171	dp->minwidth = dp->shape[W].width + 2;	8✔
172	dp->minheight = 3;	8✔
173
174	return 0;	8✔
175	}	4✔
176
177
178
179	/**
180	* Process command line options and store the result in the global `opt` struct. May exit the program.
181	*/
182	static void handle_command_line(int argc, char *argv[])	802✔
183	{
184	log_debug(__FILE__, MAIN, "Processing Command Line ...\n");	802✔
185
186	opt_t *parsed_opts = process_commandline(argc, argv);	802✔
187	if (parsed_opts == NULL) {	802✔
188	exit(EXIT_FAILURE);	20✔
189	}
190	if (parsed_opts->help) {	782✔
191	usage_long(stdout);	2✔
192	exit(EXIT_SUCCESS);	2✔
193	}
194	if (parsed_opts->version_requested) {	780!
195	printf("%s version %s\n", PROJECT, VERSION);	×
196	exit(EXIT_SUCCESS);	×
197	}
198	memcpy(&opt, parsed_opts, sizeof(opt_t));	780✔
199	BFREE(parsed_opts);	780✔
200	}	780✔
201
202
203
204	/**
205	* Parse config file(s), then reset design pointer. May exit the program.
206	*/
207	static void handle_config_parsing()	780✔
208	{
209	bxstr_t *config_file = discover_config_file(0);	780✔
210	if (config_file == NULL) {	780✔
211	exit(EXIT_FAILURE);	6✔
212	}
213	if (opt.cld == NULL) {	774✔
214	size_t r_num_designs = 0;	766✔
215	designs = parse_config_files(config_file, &r_num_designs);	766✔
216	if (designs == NULL) {	766✔
217	exit(EXIT_FAILURE);	6✔
218	}
219	num_designs = (int) r_num_designs;	760✔
220	}	380✔
221	else {
222	int rc = build_design(&designs, opt.cld);	8✔
223	if (rc) {	8✔
224	exit(EXIT_FAILURE);	×
225	}
226	num_designs = 1;	8✔
227	}
228	BFREE (opt.design);	768✔
229	opt.design = designs;	768✔
230	}	768✔
231
232
233
234	/**
235	* Adjust box size to command line specification.
236	* Increase box width/height by width/height of empty sides in order to match appearance of box with the user's
237	* expectations (if -s).
238	*/
239	static void apply_expected_size()	702✔
240	{
241	if (opt.reqheight > (long) opt.design->minheight) {	702✔
242	opt.design->minheight = opt.reqheight;	120✔
243	}	60✔
244	if (opt.reqwidth > (long) opt.design->minwidth) {	702✔
245	opt.design->minwidth = opt.reqwidth;	120✔
246	}	60✔
247	if (opt.reqwidth) {	702✔
248	if (empty_side(opt.design->shape, BRIG)) {	130✔
249	opt.design->minwidth += opt.design->shape[SE].width;	4✔
250	}	2✔
251	if (empty_side(opt.design->shape, BLEF)) {	130✔
252	opt.design->minwidth += opt.design->shape[NW].width;	4✔
253	}	2✔
254	}	65✔
255	if (opt.reqheight) {	702✔
256	if (empty_side(opt.design->shape, BTOP)) {	130✔
257	opt.design->minheight += opt.design->shape[NW].height;	2✔
258	}	1✔
259	if (empty_side(opt.design->shape, BBOT)) {	130✔
260	opt.design->minheight += opt.design->shape[SE].height;	2✔
261	}	1✔
262	}	65✔
263	}	702✔
264
265
266
267	/**
268	* Read all input lines and store the result in the global `input` structure. May exit the program.
269	*/
270	static void handle_input()	848✔
271	{
272	log_debug(__FILE__, MAIN, "Reading all input ...\n");	848✔
273
274	input_t *raw_input = NULL;	848✔
275	if (opt.mend != 0) {	848✔
276	raw_input = read_all_input();	702✔
277	if (raw_input == NULL) {	702!
278	exit(EXIT_FAILURE);	×
279	}
280	}	351✔
281	if (analyze_input(raw_input ? raw_input : &input)) {	848✔
282	exit(EXIT_FAILURE);	×
283	}
284	if (raw_input) {	848✔
285	memcpy(&input, raw_input, sizeof(input_t));	702✔
286	BFREE(raw_input);	702✔
287	}	351✔
288
289	if (is_debug_logging(MAIN)) {	848✔
290	log_debug(__FILE__, MAIN, "Effective encoding: %s\n", encoding);	6✔
291	print_input_lines(NULL);	6✔
292	}	3✔
293	if (input.num_lines == 0) {	848✔
294	exit(EXIT_SUCCESS);	×
295	}
296	}	848✔
297
298
299
300	/**
301	* Adjust box size to fit requested padding value.
302	* Command line-specified box size takes precedence over padding.
303	*/
304	static void adjust_size_and_padding()	848✔
305	{
306	for (int i = 0; i < NUM_SIDES; ++i) {	4,240✔
307	if (opt.padding[i] > -1) {	3,392✔
308	opt.design->padding[i] = opt.padding[i];	54✔
309	}	27✔
310	}	1,696✔
311
312	size_t pad = opt.design->padding[BTOP] + opt.design->padding[BBOT];	848✔
313	if (pad > 0) {	848✔
314	pad += input.num_lines;	176✔
315	pad += opt.design->shape[NW].height + opt.design->shape[SW].height;	176✔
316	if (pad > opt.design->minheight) {	176✔
317	if (opt.reqheight) {	168✔
318	for (int i = 0; i < (int) (pad - opt.design->minheight); ++i) {	14✔
319	if (opt.design->padding[i % 2 ? BBOT : BTOP]) {	12✔
320	opt.design->padding[i % 2 ? BBOT : BTOP] -= 1;	10✔
321	} else if (opt.design->padding[i % 2 ? BTOP : BBOT]) {	7!
322	opt.design->padding[i % 2 ? BTOP : BBOT] -= 1;	×
323	} else {
324	break;	2✔
325	}
326	}	5✔
327	}	2✔
328	else {
329	opt.design->minheight = pad;	164✔
330	}
331	}	84✔
332	}	88✔
333
334	pad = opt.design->padding[BLEF] + opt.design->padding[BRIG];	848✔
335	if (pad > 0) {	848✔
336	pad += input.maxline;	734✔
337	pad += opt.design->shape[NW].width + opt.design->shape[NE].width;	734✔
338	if (pad > opt.design->minwidth) {	734✔
339	if (opt.reqwidth) {	620✔
340	for (int i = 0; i < (int) (pad - opt.design->minwidth); ++i) {	38✔
341	if (opt.design->padding[i % 2 ? BRIG : BLEF]) {	32✔
342	opt.design->padding[i % 2 ? BRIG : BLEF] -= 1;	26✔
343	} else if (opt.design->padding[i % 2 ? BLEF : BRIG]) {	19✔
344	opt.design->padding[i % 2 ? BLEF : BRIG] -= 1;	2!
345	} else {	1✔
346	break;	4✔
347	}
348	}	14✔
349	}	5✔
350	else {
351	opt.design->minwidth = pad;	610✔
352	}
353	}	310✔
354	}	367✔
355	}	848✔
356
357
358
359	/**
360	* Generate box. May exit the program.
361	*/
362	static void handle_generate_box()	526✔
363	{
364	log_debug(__FILE__, MAIN, "Generating Box ...\n");	526✔
365
366	sentry_t thebox = (sentry_t ) calloc(NUM_SIDES, sizeof(sentry_t));	526✔
367	if (thebox == NULL) {	526✔
368	perror(PROJECT);	×
369	exit(EXIT_FAILURE);	×
370	}
371	int rc = generate_box(thebox);	526✔
372	if (rc) {	526!
373	exit(EXIT_FAILURE);	×
374	}
375	output_box(thebox);	526✔
376	}	526✔
377
378
379
380	/**
381	* Remove box. May exit the program.
382	*/
383	static void handle_remove_box()	321✔
384	{
385	log_debug(__FILE__, MAIN, "Removing Box ...\n");	321✔
386
387	if (opt.killblank == -1) {	321✔
388	if (empty_side(opt.design->shape, BTOP) && empty_side(opt.design->shape, BBOT)) {	174✔
389	opt.killblank = 0;	22✔
390	} else {	11✔
391	opt.killblank = 1;	152✔
392	}
393	}	87✔
394	int rc = remove_box();	321✔
395	if (rc) {	320✔
396	exit(EXIT_FAILURE);	×
397	}
398	rc = apply_substitutions(&input, 1);	320✔
399	if (rc) {	320!
400	exit(EXIT_FAILURE);	×
401	}
402	output_input(opt.mend > 0);	320✔
403	}	320✔
404
405
406
407	#ifndef __MINGW32__
408	/* These two functions are actually declared in term.h, but for some reason, that can't be included. */
409	extern NCURSES_EXPORT(int) setupterm(NCURSES_CONST char , int, int );
410	extern NCURSES_EXPORT(int) tigetnum(NCURSES_CONST char *);
411	#endif
412
413	static int terminal_has_colors()	778✔
414	{
415	int result = 0;	778✔
416	char *termtype = getenv("TERM");	778✔
417	#ifdef __MINGW32__
418	result = 1; /* On Windows, we always assume color capability. */
419	UNUSED(termtype);
420	#else
421	if (termtype != NULL && setupterm(termtype, STDOUT_FILENO, NULL) == OK && tigetnum("colors") >= 8) {	778!
422	result = 1;	778✔
423	}	389✔
424	#endif
425
426	if (is_debug_logging(MAIN)) {	778✔
427	#ifdef __MINGW32__
428	int num_colors = 1;
429	#else
430	int num_colors = result ? tigetnum("colors") : 0;	6✔
431	#endif
432	log_debug(__FILE__, MAIN, "Terminal \"%s\" %s colors (number of colors = %d).\n",	6!
433	termtype != NULL ? termtype : "(null)", result ? "has" : "does NOT have", num_colors);	3!
434	}	3✔
435	return result;	778✔
436	}
437
438
439
440	static int check_color_support(int opt_color)	780✔
441	{
442	int result = 0;	780✔
443	if (opt_color == force_ansi_color) {	780✔
444	result = 1;	2✔
445	}	1✔
446	else if (opt_color == color_from_terminal) {	778✔
447	result = terminal_has_colors();	778✔
448	}	389✔
449
450	log_debug(__FILE__, MAIN, "Color support %sabled\n", result ? "\x1b[92mEN\x1b[0m" : "DIS");	780!
451	return result;	780✔
452	}
453
454
455
456	/**
457	* Switch from default "C" encoding to system encoding.
458	*/
459	static void activateSystemEncoding()	802✔
460	{
461	#ifdef _WIN32
462	SetConsoleOutputCP(CP_ACP);
463	SetConsoleCP(CP_ACP);
464	/* If it should one day turn out that this doesn't have the desired effect, try setlocale(LC_ALL, ".UTF8"). */
465	#else
466	setlocale(LC_ALL, "");	802✔
467	#endif
468	}	802✔
469
470
471
472	/* _\\|/_
473	(o o)
474	+----oOO-{_}-OOo------------------------------------------------------------+
475	\| P r o g r a m S t a r t \|
476	+--------------------------------------------------------------------------*/
477
478	int main(int argc, char *argv[])	785✔
479	{
480	int rc; /* general return code */
481	int saved_designwidth; /* opt.design->minwith backup, used for mending */
482	int saved_designheight; /* opt.design->minheight backup, used for mending */
483
484	log_debug(__FILE__, MAIN, "BOXES STARTING ...\n"); /* TODO This line will never execute, because debug not on yet */	785✔
485
486	/* Temporarily set the system encoding, for proper output of --help text etc. */
487	activateSystemEncoding();	785✔
488	encoding = locale_charset();	785✔
489
490	handle_command_line(argc, argv);	785✔
491
492	/* Store system character encoding */
493	encoding = check_encoding(opt.encoding, locale_charset());	774✔
494	log_debug(__FILE__, MAIN, "Character Encoding = %s\n", encoding);	774✔
495
496	color_output_enabled = check_color_support(opt.color);	774✔
497
498	handle_config_parsing();	774✔
499
500	/* If "-l" option was given, list designs and exit. */
501	if (opt.l) {	768✔
502	rc = list_designs();	48✔
503	exit(rc);	48✔
504	}
505
506	/* If "-q" option was given, print results of tag query and exit. */
507	if (opt.query != NULL && opt.query[0] != NULL) {	720!
508	rc = query_by_tag();	18✔
509	exit(rc);	18✔
510	}
511
512	apply_expected_size();	702✔
513	if (opt.indentmode) {	702✔
514	opt.design->indentmode = opt.indentmode;	4✔
515	}	2✔
516	saved_designwidth = opt.design->minwidth;	702✔
517	saved_designheight = opt.design->minheight;	702✔
518
519	do {	351✔
520	if (opt.mend == 1) { /* Mending a box works in two phases: */	848✔
521	opt.r = 0; /* opt.mend == 2: remove box */	146✔
522	}	73✔
523	--opt.mend; /* opt.mend == 1: add it back */	848✔
524	opt.design->minwidth = saved_designwidth;	848✔
525	opt.design->minheight = saved_designheight;	848✔
526
527	handle_input();	848✔
528
529	adjust_size_and_padding();	848✔
530
531	if (opt.r) {	848✔
532	handle_remove_box();	322✔
533	}	161✔
534	else {
535	handle_generate_box();	526✔
536	}
537	} while (opt.mend > 0);	847✔
538
539	return EXIT_SUCCESS;	701✔
540	}
541
542	/* vim: set sw=4: */

ascii-boxes / boxes / 11084634932

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