cleanup on aisle 7

This commit is contained in:
tater 2016-09-21 14:48:55 -05:00
parent 6b24e355b1
commit 3c76f9b134

251
a2m.c
View File

@ -6,16 +6,19 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sysexits.h>
#include <unistd.h>
#include <getopt.h>
#define DPRINTF(fmt, ...) if (DEBUG) do { \
fprintf(stderr, fmt, __VA_ARGS__); \
} while (0)
#define DEFAULT_FG 7
#define DEFAULT_BG 0
#define DEFAULT_BOLD false
#define DEFAULT_ICE false
/* technically theres no limit in the format */
#define MAX_PARAMS 8
#define MAX_PARAMS 16
/* 4 bytes + '\0' */
#define MAX_UTFSTR 5
@ -29,22 +32,17 @@ typedef struct cell_s {
} cell_t;
typedef struct canvas_s {
/* canvas state */
cell_t **cell;
cell_t **cell; /* canvas state */
char fg;
char bg;
bool bold;
bool ice;
/* cursor state */
int row;
int row; /* cursor state */
int col;
int bottomrow;
int oldrow;
int oldcol;
/* options */
int max_cols;
int max_cols; /* options */
bool use_color;
bool show_unp;
int tab_size;
@ -58,22 +56,25 @@ int get_fgcolor(cell_t *cell);
int get_bgcolor(cell_t *cell);
void print_color(canvas_t *c, cell_t *cell, int col);
void inc_row(canvas_t *c);
void draw_cell(canvas_t *c, char *inchar, int fg, int bg, bool bold, bool ice);
void draw_cell(canvas_t *c, char *inch, int fg, int bg, bool bold, bool ice);
void usage(void);
/* lol globals */
/* ANSI COLORS BLK RED GRN YEL BLU MAG CYN WHT */
/* 0 1 2 3 4 5 6 7 */
/* MIRC COLORS ------------------------------- */
/*
* ANSI COLORS BLK RED GRN YEL BLU MAG CYN WHT
* 0 1 2 3 4 5 6 7
*/
const char color[8] = { 1, 5, 3, 7, 2, 6, 10, 15 };
const char color_bold[8] = { 14, 4, 9, 8, 12, 13, 11, 0 };
int main(int argc, char *argv[]) {
int opt;
FILE *fh;
FILE *fd;
canvas_t *c = (canvas_t *)calloc(1, sizeof(canvas_t));
canvas_t *c;
c = (canvas_t *)calloc(1, sizeof(canvas_t));
c->fg = DEFAULT_FG;
c->bg = DEFAULT_BG;
@ -121,36 +122,34 @@ int main(int argc, char *argv[]) {
/* fallthrough */
default:
usage();
return (EXIT_FAILURE);
}
}
argc -= optind;
argv += optind;
/* init the first line */
inc_row(c);
if (argc == 1) {
fh = fopen(argv[0], "r");
fd = NULL;
} else if (argc == 0) {
fh = stdin;
} else {
if (argc == 1)
fd = fopen(argv[0], "r");
else if (argc == 0)
fd = stdin;
else {
usage();
exit(EXIT_FAILURE);
}
if (!fh) {
if (!fd) {
perror(NULL);
exit(EXIT_FAILURE);
exit(EX_NOINPUT);
}
char *charp = malloc(1);
if (!charp) {
perror(NULL);
exit(EXIT_FAILURE);
exit(EX_OSERR);
}
char *space = " ";
@ -160,35 +159,28 @@ int main(int argc, char *argv[]) {
int param[MAX_PARAMS];
uint32_t ch = 0;
while ((ch = fgetc(fh)) != EOF) {
while ((ch = fgetc(fd)) != EOF) {
/* ignore sauce record */
if (ch == 0x1A) {
if (ch == 0x1a)
break;
}
/* drawable character */
if (ch != 0x1B) {
if (ch != 0x1b) {
*charp = (char)ch;
/* convert tabs to spaces */
if (ch == '\t') {
for (int i = 0; i < c->tab_size; i++) {
if (ch == '\t')
for (int i = 0; i < c->tab_size; i++)
draw_cell(c, space, c->fg, c->bg, c->bold, c->ice);
}
} else if (ch == '\0') {
else if (ch == '\0')
draw_cell(c, space, DEFAULT_FG, DEFAULT_BG, c->bold, c->ice);
} else if (ch != '\r' && ch != '\n') {
else if (ch != '\r' && ch != '\n')
draw_cell(c, charp, c->fg, c->bg, c->bold, c->ice);
}
if (ch == '\n') {
while (c->col != 0) {
if (ch == '\n')
while (c->col != 0)
draw_cell(c, space, c->fg, c->bg, c->bold, c->ice);
}
}
/* escape code */
} else {
@ -196,13 +188,13 @@ int main(int argc, char *argv[]) {
pcnt = 0;
/* no rational way to recover tbqh imho */
if ((ch = fgetc(fh)) != '[') {
if ((ch = fgetc(fd)) != '[') {
fprintf(stderr, "Invalid escape code, aborting at line %d\n",
c->row + 1);
exit(EXIT_FAILURE);
exit(EX_DATAERR);
}
while ((ch = fgetc(fh)) != EOF) {
while ((ch = fgetc(fd)) != EOF) {
/* parameters */
if (isdigit(ch)) {
@ -211,7 +203,7 @@ int main(int argc, char *argv[]) {
/* oddball parameter prefixes */
} else if (ch == '?' || ch == '=' || ch == '>') {
/* just eat them */
/* just eat them for now */
/* end of parameter, havent encountered ':' but its legit */
} else if (ch == ';' || ch == ':') {
@ -221,11 +213,9 @@ int main(int argc, char *argv[]) {
/* spacing */
} else if (ch == 'C') {
/* default to one space */
if (rc == 0) {
if (rc == 0)
rc = 1;
}
for (int i = 0; i < rc; i++) {
draw_cell(c, space, DEFAULT_FG, DEFAULT_BG,
DEFAULT_BOLD, DEFAULT_ICE);
@ -240,36 +230,33 @@ int main(int argc, char *argv[]) {
param[pcnt] = rc;
pcnt++;
for (int i = 0; i < pcnt; i++) {
/* reset */
if (param[i] == 0) {
c->bold = false;
c->ice = false;
c->fg = DEFAULT_FG;
c->bg = DEFAULT_BG;
} else if (param[i] == 1) {
} else if (param[i] == 1)
c->bold = true;
} else if (param[i] == 5) {
else if (param[i] == 5)
c->ice = true;
} else if (param[i] == 21 || param[i] == 22) {
else if (param[i] == 21 || param[i] == 22)
c->bold = false;
} else if (param[i] == 25) {
else if (param[i] == 25)
c->ice = false;
} else if (param[i] >= 30 && param[i] <= 37) {
else if (param[i] >= 30 && param[i] <= 37)
c->fg = param[i] - 30;
} else if (param[i] >= 40 && param[i] <= 47) {
else if (param[i] >= 40 && param[i] <= 47)
c->bg = param[i] - 40;
} else if (param[i] == 39) {
else if (param[i] == 39)
c->fg = DEFAULT_FG;
} else if (param[i] == 49) {
else if (param[i] == 49)
c->bg = DEFAULT_BG;
} else {
else
fprintf(stderr,
"Ignored SGR parameter %d at line %d\n",
param[i], c->row + 1);
}
}
rc = 0;
pcnt = 0;
break;
@ -287,11 +274,10 @@ int main(int argc, char *argv[]) {
c->cell[i][j].bold = DEFAULT_BOLD;
c->cell[i][j].ice = DEFAULT_ICE;
if (c->cell[i][j].utfchar) {
if (c->cell[i][j].utfchar)
free(c->cell[i][j].utfchar);
}
}
}
rc = 0;
pcnt = 0;
break;
@ -300,18 +286,16 @@ int main(int argc, char *argv[]) {
} else if (ch == 'A') {
/* default is 1 */
if (rc == 0) {
if (rc == 0)
rc = 1;
}
while (rc > 0) {
/* found an ansi that tried this */
/* probably from a bbs prelogin that assumed */
/* frontdoor was eating the first few lines */
if (c->row == 0) {
if (c->row == 0)
break;
}
c->row--;
rc--;
@ -324,9 +308,8 @@ int main(int argc, char *argv[]) {
/* move down */
} else if (ch == 'B') {
if (rc == 0) {
if (rc == 0)
rc = 1;
}
while (rc > 0) {
inc_row(c);
@ -340,15 +323,13 @@ int main(int argc, char *argv[]) {
/* move forward */
} else if (ch == 'C') {
if (rc == 0) {
if (rc == 0)
rc = 1;
}
while (rc > 0) {
if (c->col == c->max_cols - 1) {
if (c->col == c->max_cols - 1)
break;
}
c->col++;
rc--;
@ -361,15 +342,12 @@ int main(int argc, char *argv[]) {
/* move back */
} else if (ch == 'D') {
if (rc == 0) {
if (rc == 0)
rc = 1;
}
while (rc > 0) {
if (c->col == 0) {
if (c->col == 0)
break;
}
c->col--;
rc--;
@ -424,10 +402,11 @@ int main(int argc, char *argv[]) {
/* sequences we dont care and/or know about */
} else {
fprintf(stderr, "Ignored escape code [");
for (int i = 0; i < pcnt; ++i) {
for (int i = 0; i < pcnt; i++)
fprintf(stderr, "%d%s", param[pcnt],
i + 1 < pcnt ? ";" : "");
}
fprintf(stderr, "0x%02x at line %d col %d\n", ch,
c->row + 1, c->col + 1);
@ -445,29 +424,29 @@ int main(int argc, char *argv[]) {
if (!cell->utfchar) {
printf("\n");
return 0;
return (0);
}
if (c->use_color) {
if (c->use_color)
print_color(c, cell, j);
}
printf("%s", cell->utfchar);
}
printf("\n");
}
if (argc == 1) {
fclose(fh);
if (argc == 1)
fclose(fd);
return (0);
}
return 0;
}
void usage(void) {
fprintf(stderr, "Usage: a2m [options] [input.ans]\n");
void
usage(void)
{
fprintf(stderr, "usage: a2m [options] [input.ans]\n");
fprintf(stderr, "\n");
fprintf(stderr, "Options:");
fprintf(stderr, "options:");
fprintf(stderr, "\n");
fprintf(stderr, " -l n Crop n lines from the left side.\n");
fprintf(stderr, " -r n Crop n lines from the right side.\n");
@ -475,18 +454,24 @@ void usage(void) {
fprintf(stderr, " -p Print unprintable characters.\n");
fprintf(stderr, " -t size Specify tab size, default is 8.\n");
fprintf(stderr, " -w width Specify width, default is 80.\n");
return;
exit(EX_USAGE);
}
int get_fgcolor(cell_t *cell) {
return cell->bold ? color_bold[cell->fg] : color[cell->fg];
int
get_fgcolor(cell_t *cell)
{
return (cell->bold ? color_bold[cell->fg] : color[cell->fg]);
}
int get_bgcolor(cell_t *cell) {
return cell->ice ? color_bold[cell->bg] : color[cell->bg];
int
get_bgcolor(cell_t *cell)
{
return (cell->ice ? color_bold[cell->bg] : color[cell->bg]);
}
void print_color(canvas_t *c, cell_t *cell, int col) {
void
print_color(canvas_t *c, cell_t *cell, int col)
{
static cell_t *prev = NULL;
int oldfg = (!prev || col == 0 + c->lcrop) ? DEFAULT_FG : prev->fg;
@ -494,45 +479,42 @@ void print_color(canvas_t *c, cell_t *cell, int col) {
int oldbold = (!prev || col == 0 + c->lcrop) ? DEFAULT_BOLD : prev->bold;
int oldice = (!prev || col == 0 + c->lcrop) ? DEFAULT_ICE : prev->ice;
if (cell->fg != oldfg ||
cell->bg != oldbg ||
cell->bold != oldbold ||
cell->ice != oldice) {
if (cell->fg != oldfg || cell->bg != oldbg || cell->bold != oldbold || cell->ice != oldice) {
printf("\x03");
if (cell->fg != oldfg || cell->bold != oldbold) {
if (cell->fg != oldfg || cell->bold != oldbold)
printf("%d", get_fgcolor(cell));
}
if (cell->bg != oldbg || (cell->ice != oldice)) {
if (cell->bg != oldbg || (cell->ice != oldice))
printf(",%d", get_bgcolor(cell));
}
}
prev = cell;
return;
}
void inc_row(canvas_t *c) {
void
inc_row(canvas_t *c)
{
cell_t **newrows;
c->row++;
if (c->row <= c->bottomrow) {
if (c->row <= c->bottomrow)
return;
}
c->bottomrow = c->row;
cell_t **newrows = (cell_t **)calloc(c->row + 1, sizeof(cell_t *));
newrows = (cell_t **)calloc(c->row + 1, sizeof(cell_t *));
if (!newrows) {
perror(NULL);
exit(EXIT_FAILURE);
exit(EX_OSERR);
}
for (int i = 0; i < c->row; i++) {
for (int i = 0; i < c->row; i++)
newrows[i] = c->cell[i];
}
newrows[c->row] = (cell_t *)calloc(c->max_cols, sizeof(cell_t));
@ -545,40 +527,45 @@ void inc_row(canvas_t *c) {
c->cell[c->row][j].bold = DEFAULT_BOLD;
c->cell[c->row][j].ice = DEFAULT_ICE;
}
return;
}
void draw_cell(canvas_t *c, char *inchar, int fg, int bg, bool bold, bool ice) {
void
draw_cell(canvas_t *c, char *inch, int fg, int bg, bool bold, bool ice)
{
static iconv_t conv = (iconv_t)0;
char *outchp;
char *oldoutchp;
char *outcharp = calloc(1, MAX_UTFSTR);
if (!outcharp) {
outchp = calloc(1, MAX_UTFSTR);
if (!outchp) {
perror(NULL);
exit(EXIT_FAILURE);
}
char *oldoutcharp = outcharp;
if ((unsigned char)inchar[0] < 32 && !c->show_unp) {
inchar[0] = ' ';
exit(EX_OSERR);
}
size_t incharsize = 1;
size_t outcharsize = MAX_UTFSTR;
oldoutchp = outchp;
if (!conv) {
if ((unsigned char)inch[0] < 32 && !c->show_unp)
inch[0] = ' ';
size_t inchsize = 1;
size_t outchsize = MAX_UTFSTR;
if (!conv)
conv = iconv_open("UTF-8", "CP437");
}
iconv(conv, &inchar, &incharsize, &outcharp, &outcharsize);
iconv(conv, &inch, &inchsize, &outchp, &outchsize);
c->cell[c->row][c->col].utfchar = calloc(1, MAX_UTFSTR);
if (!c->cell[c->row][c->col].utfchar) {
perror(NULL);
exit(EXIT_FAILURE);
exit(EX_OSERR);
}
strcpy(c->cell[c->row][c->col].utfchar, oldoutcharp);
strcpy(c->cell[c->row][c->col].utfchar, oldoutchp);
free(oldoutcharp);
free(oldoutchp);
c->cell[c->row][c->col].fg = fg;
c->cell[c->row][c->col].bg = bg;