mirror of
https://github.com/ascii-boxes/boxes.git
synced 2024-12-04 22:11:07 +01:00
Extract smaller functions from the main() function #78
This commit is contained in:
Thomas Jensen
parent
82bc084bad
commit
434d5971bf
372
src/boxes.c
372
src/boxes.c
@ -159,27 +159,11 @@ static int build_design(design_t **adesigns, const char *cld)
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/* _\|/_
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(o o)
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+----oOO-{_}-OOo------------------------------------------------------------+
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| P r o g r a m S t a r t |
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+--------------------------------------------------------------------------*/
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int main(int argc, char *argv[])
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/**
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* Process command line options and store the result in the global `opt` struct. May exit the program.
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*/
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static void handle_command_line(int argc, char *argv[])
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{
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int rc; /* general return code */
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size_t pad;
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int i;
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int saved_designwidth; /* opt.design->minwith backup, used for mending */
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int saved_designheight; /* opt.design->minheight backup, used for mending */
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#ifdef DEBUG
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fprintf (stderr, "BOXES STARTING ...\n");
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#endif
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/*
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* Process command line options
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*/
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#ifdef DEBUG
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fprintf (stderr, "Processing Command Line ...\n");
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#endif
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@ -197,19 +181,15 @@ int main(int argc, char *argv[])
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}
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memcpy(&opt, parsed_opts, sizeof(opt_t));
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BFREE(parsed_opts);
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}
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/*
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* Store system character encoding
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*/
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setlocale(LC_ALL, ""); /* switch from default "C" encoding to system encoding */
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encoding = check_encoding(opt.encoding, locale_charset());
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#ifdef DEBUG
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fprintf (stderr, "Character Encoding = %s\n", encoding);
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#endif
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/*
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* Parse config file(s), then reset design pointer
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*/
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/**
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* Parse config file(s), then reset design pointer. May exit the program.
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*/
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static void handle_config_parsing()
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{
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char *config_file = discover_config_file(0);
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if (config_file == NULL) {
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exit(EXIT_FAILURE);
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@ -223,7 +203,7 @@ int main(int argc, char *argv[])
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num_designs = (int) r_num_designs;
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}
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else {
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rc = build_design(&designs, opt.cld);
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int rc = build_design(&designs, opt.cld);
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if (rc) {
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exit(EXIT_FAILURE);
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}
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@ -231,28 +211,17 @@ int main(int argc, char *argv[])
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}
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BFREE (opt.design);
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opt.design = designs;
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}
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/*
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* If "-l" option was given, list designs and exit.
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*/
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if (opt.l) {
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rc = list_designs();
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exit(rc);
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}
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/*
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* If "-q" option was given, print results of tag query and exit.
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*/
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if (opt.query != NULL && opt.query[0] != NULL && !query_is_undoc()) {
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rc = query_by_tag();
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exit(rc);
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}
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/*
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* Adjust box size and indentmode to command line specification
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* Increase box width/height by width/height of empty sides in order
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* to match appearance of box with the user's expectations (if -s).
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*/
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/**
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* Adjust box size to command line specification.
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* Increase box width/height by width/height of empty sides in order to match appearance of box with the user's
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* expectations (if -s).
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*/
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static void apply_expected_size()
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{
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if (opt.reqheight > (long) opt.design->minheight) {
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opt.design->minheight = opt.reqheight;
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}
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@ -275,6 +244,188 @@ int main(int argc, char *argv[])
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opt.design->minheight += opt.design->shape[SE].height;
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}
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}
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}
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/**
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* Read all input lines and store the result in the global `input` structure. May exit the program.
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*/
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static void handle_input()
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{
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#ifdef DEBUG
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fprintf (stderr, "Reading all input ...\n");
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#endif
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input_t *raw_input = NULL;
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if (opt.mend != 0) {
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raw_input = read_all_input();
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if (raw_input == NULL) {
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exit(EXIT_FAILURE);
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}
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}
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if (analyze_input(raw_input ? raw_input : &input)) {
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exit(EXIT_FAILURE);
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}
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if (raw_input) {
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memcpy(&input, raw_input, sizeof(input_t));
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BFREE(raw_input);
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}
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if (input.num_lines == 0) {
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exit(EXIT_SUCCESS);
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}
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}
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/**
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* Adjust box size to fit requested padding value.
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* Command line-specified box size takes precedence over padding.
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*/
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static void adjust_size_and_padding()
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{
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for (int i = 0; i < NUM_SIDES; ++i) {
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if (opt.padding[i] > -1) {
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opt.design->padding[i] = opt.padding[i];
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}
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}
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size_t pad = opt.design->padding[BTOP] + opt.design->padding[BBOT];
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if (pad > 0) {
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pad += input.num_lines;
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pad += opt.design->shape[NW].height + opt.design->shape[SW].height;
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if (pad > opt.design->minheight) {
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if (opt.reqheight) {
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for (int i = 0; i < (int) (pad - opt.design->minheight); ++i) {
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if (opt.design->padding[i % 2 ? BBOT : BTOP]) {
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opt.design->padding[i % 2 ? BBOT : BTOP] -= 1;
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} else if (opt.design->padding[i % 2 ? BTOP : BBOT]) {
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opt.design->padding[i % 2 ? BTOP : BBOT] -= 1;
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} else {
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break;
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}
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}
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}
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else {
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opt.design->minheight = pad;
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}
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}
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}
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pad = opt.design->padding[BLEF] + opt.design->padding[BRIG];
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if (pad > 0) {
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pad += input.maxline;
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pad += opt.design->shape[NW].width + opt.design->shape[NE].width;
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if (pad > opt.design->minwidth) {
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if (opt.reqwidth) {
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for (int i = 0; i < (int) (pad - opt.design->minwidth); ++i) {
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if (opt.design->padding[i % 2 ? BRIG : BLEF]) {
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opt.design->padding[i % 2 ? BRIG : BLEF] -= 1;
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} else if (opt.design->padding[i % 2 ? BLEF : BRIG]) {
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opt.design->padding[i % 2 ? BLEF : BRIG] -= 1;
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} else {
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break;
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}
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}
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}
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else {
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opt.design->minwidth = pad;
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}
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}
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}
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}
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/**
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* Generate box. May exit the program.
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*/
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static void handle_generate_box()
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{
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#ifdef DEBUG
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fprintf (stderr, "Generating Box ...\n");
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#endif
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sentry_t *thebox = (sentry_t *) calloc(NUM_SIDES, sizeof(sentry_t));
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if (thebox == NULL) {
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perror(PROJECT);
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exit(EXIT_FAILURE);
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}
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int rc = generate_box(thebox);
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if (rc) {
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exit(EXIT_FAILURE);
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}
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output_box(thebox);
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}
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/**
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* Remove box. May exit the program.
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*/
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static void handle_remove_box()
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{
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#ifdef DEBUG
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fprintf (stderr, "Removing Box ...\n");
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#endif
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if (opt.killblank == -1) {
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if (empty_side(opt.design->shape, BTOP) && empty_side(opt.design->shape, BBOT)) {
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opt.killblank = 0;
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} else {
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opt.killblank = 1;
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}
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}
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int rc = remove_box();
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if (rc) {
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exit(EXIT_FAILURE);
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}
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rc = apply_substitutions(&input, 1);
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if (rc) {
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exit(EXIT_FAILURE);
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}
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output_input(opt.mend > 0);
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}
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/* _\|/_
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(o o)
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+----oOO-{_}-OOo------------------------------------------------------------+
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| P r o g r a m S t a r t |
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+--------------------------------------------------------------------------*/
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int main(int argc, char *argv[])
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{
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int rc; /* general return code */
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int saved_designwidth; /* opt.design->minwith backup, used for mending */
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int saved_designheight; /* opt.design->minheight backup, used for mending */
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#ifdef DEBUG
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fprintf (stderr, "BOXES STARTING ...\n");
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#endif
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handle_command_line(argc, argv);
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/* Store system character encoding */
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setlocale(LC_ALL, ""); /* switch from default "C" encoding to system encoding */
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encoding = check_encoding(opt.encoding, locale_charset());
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#ifdef DEBUG
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fprintf (stderr, "Character Encoding = %s\n", encoding);
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#endif
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handle_config_parsing();
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/* If "-l" option was given, list designs and exit. */
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if (opt.l) {
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rc = list_designs();
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exit(rc);
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}
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/* If "-q" option was given, print results of tag query and exit. */
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if (opt.query != NULL && opt.query[0] != NULL && !query_is_undoc()) {
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rc = query_by_tag();
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exit(rc);
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}
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apply_expected_size();
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if (opt.indentmode) {
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opt.design->indentmode = opt.indentmode;
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}
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@ -289,126 +440,15 @@ int main(int argc, char *argv[])
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opt.design->minwidth = saved_designwidth;
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opt.design->minheight = saved_designheight;
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/*
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* Read input lines
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*/
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#ifdef DEBUG
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fprintf (stderr, "Reading all input ...\n");
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#endif
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input_t *raw_input = NULL;
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if (opt.mend != 0) {
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raw_input = read_all_input();
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if (raw_input == NULL) {
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exit(EXIT_FAILURE);
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}
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}
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if (analyze_input(raw_input ? raw_input : &input)) {
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exit(EXIT_FAILURE);
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}
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if (raw_input) {
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memcpy(&input, raw_input, sizeof(input_t));
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BFREE(raw_input);
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}
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if (input.num_lines == 0) {
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exit(EXIT_SUCCESS);
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}
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handle_input();
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/*
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* Adjust box size to fit requested padding value
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* Command line-specified box size takes precedence over padding.
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*/
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for (i = 0; i < NUM_SIDES; ++i) {
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if (opt.padding[i] > -1) {
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opt.design->padding[i] = opt.padding[i];
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}
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}
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pad = opt.design->padding[BTOP] + opt.design->padding[BBOT];
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if (pad > 0) {
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pad += input.num_lines;
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pad += opt.design->shape[NW].height + opt.design->shape[SW].height;
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if (pad > opt.design->minheight) {
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if (opt.reqheight) {
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for (i = 0; i < (int) (pad - opt.design->minheight); ++i) {
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if (opt.design->padding[i % 2 ? BBOT : BTOP]) {
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opt.design->padding[i % 2 ? BBOT : BTOP] -= 1;
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} else if (opt.design->padding[i % 2 ? BTOP : BBOT]) {
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opt.design->padding[i % 2 ? BTOP : BBOT] -= 1;
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} else {
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break;
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}
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}
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}
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else {
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opt.design->minheight = pad;
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}
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}
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}
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pad = opt.design->padding[BLEF] + opt.design->padding[BRIG];
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if (pad > 0) {
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pad += input.maxline;
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pad += opt.design->shape[NW].width + opt.design->shape[NE].width;
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if (pad > opt.design->minwidth) {
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if (opt.reqwidth) {
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for (i = 0; i < (int) (pad - opt.design->minwidth); ++i) {
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if (opt.design->padding[i % 2 ? BRIG : BLEF]) {
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opt.design->padding[i % 2 ? BRIG : BLEF] -= 1;
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} else if (opt.design->padding[i % 2 ? BLEF : BRIG]) {
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opt.design->padding[i % 2 ? BLEF : BRIG] -= 1;
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} else {
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break;
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}
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}
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}
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else {
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opt.design->minwidth = pad;
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}
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}
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}
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adjust_size_and_padding();
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if (opt.r) {
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/*
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* Remove box
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*/
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#ifdef DEBUG
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fprintf (stderr, "Removing Box ...\n");
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#endif
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if (opt.killblank == -1) {
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if (empty_side(opt.design->shape, BTOP) && empty_side(opt.design->shape, BBOT)) {
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opt.killblank = 0;
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} else {
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opt.killblank = 1;
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}
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}
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rc = remove_box();
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if (rc) {
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exit(EXIT_FAILURE);
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}
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rc = apply_substitutions(&input, 1);
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if (rc) {
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exit(EXIT_FAILURE);
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}
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output_input(opt.mend > 0);
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handle_remove_box();
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}
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else {
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/*
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* Generate box
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*/
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sentry_t *thebox;
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#ifdef DEBUG
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fprintf (stderr, "Generating Box ...\n");
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#endif
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thebox = (sentry_t *) calloc(NUM_SIDES, sizeof(sentry_t));
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if (thebox == NULL) {
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perror(PROJECT);
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exit(EXIT_FAILURE);
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}
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rc = generate_box(thebox);
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if (rc) {
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exit(EXIT_FAILURE);
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}
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output_box(thebox);
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handle_generate_box();
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}
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} while (opt.mend > 0);
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