mirror of
https://github.com/vim/vim.git
synced 2025-10-17 07:44:28 -04:00
Problem: Unnecessary changes in libvterm. Solution: Bring back // comments and trailing comma in enums.
289 lines
6.5 KiB
C
289 lines
6.5 KiB
C
#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <getopt.h>
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#include <unistd.h>
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#include "vterm.h"
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#define DEFINE_INLINES
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#include "../src/utf8.h" // fill_utf8
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#define streq(a,b) (!strcmp(a,b))
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static VTerm *vt;
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static VTermScreen *vts;
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static int cols;
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static int rows;
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static enum {
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FORMAT_PLAIN,
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FORMAT_SGR,
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} format = FORMAT_PLAIN;
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static int col2index(VTermColor target)
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{
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int index;
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for(index = 0; index < 256; index++) {
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VTermColor col;
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vterm_state_get_palette_color(NULL, index, &col);
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if(col.red == target.red && col.green == target.green && col.blue == target.blue)
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return index;
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}
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return -1;
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}
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static void dump_cell(const VTermScreenCell *cell, const VTermScreenCell *prevcell)
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{
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switch(format) {
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case FORMAT_PLAIN:
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break;
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case FORMAT_SGR:
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{
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// If all 7 attributes change, that means 7 SGRs max
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// Each colour could consume up to 3
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int sgr[7 + 2*3]; int sgri = 0;
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if(!prevcell->attrs.bold && cell->attrs.bold)
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sgr[sgri++] = 1;
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if(prevcell->attrs.bold && !cell->attrs.bold)
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sgr[sgri++] = 22;
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if(!prevcell->attrs.underline && cell->attrs.underline)
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sgr[sgri++] = 4;
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if(prevcell->attrs.underline && !cell->attrs.underline)
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sgr[sgri++] = 24;
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if(!prevcell->attrs.italic && cell->attrs.italic)
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sgr[sgri++] = 3;
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if(prevcell->attrs.italic && !cell->attrs.italic)
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sgr[sgri++] = 23;
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if(!prevcell->attrs.blink && cell->attrs.blink)
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sgr[sgri++] = 5;
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if(prevcell->attrs.blink && !cell->attrs.blink)
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sgr[sgri++] = 25;
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if(!prevcell->attrs.reverse && cell->attrs.reverse)
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sgr[sgri++] = 7;
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if(prevcell->attrs.reverse && !cell->attrs.reverse)
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sgr[sgri++] = 27;
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if(!prevcell->attrs.strike && cell->attrs.strike)
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sgr[sgri++] = 9;
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if(prevcell->attrs.strike && !cell->attrs.strike)
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sgr[sgri++] = 29;
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if(!prevcell->attrs.font && cell->attrs.font)
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sgr[sgri++] = 10 + cell->attrs.font;
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if(prevcell->attrs.font && !cell->attrs.font)
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sgr[sgri++] = 10;
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if(prevcell->fg.red != cell->fg.red ||
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prevcell->fg.green != cell->fg.green ||
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prevcell->fg.blue != cell->fg.blue) {
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int index = col2index(cell->fg);
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if(index == -1)
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sgr[sgri++] = 39;
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else if(index < 8)
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sgr[sgri++] = 30 + index;
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else if(index < 16)
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sgr[sgri++] = 90 + (index - 8);
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else {
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sgr[sgri++] = 38;
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sgr[sgri++] = 5 | CSI_ARG_FLAG_MORE;
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sgr[sgri++] = index | CSI_ARG_FLAG_MORE;
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}
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}
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if(prevcell->bg.red != cell->bg.red ||
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prevcell->bg.green != cell->bg.green ||
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prevcell->bg.blue != cell->bg.blue) {
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int index = col2index(cell->bg);
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if(index == -1)
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sgr[sgri++] = 49;
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else if(index < 8)
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sgr[sgri++] = 40 + index;
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else if(index < 16)
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sgr[sgri++] = 100 + (index - 8);
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else {
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sgr[sgri++] = 48;
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sgr[sgri++] = 5 | CSI_ARG_FLAG_MORE;
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sgr[sgri++] = index | CSI_ARG_FLAG_MORE;
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}
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}
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if(!sgri)
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break;
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printf("\x1b[");
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{
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int i;
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for(i = 0; i < sgri; i++)
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printf(!i ? "%d" :
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CSI_ARG_HAS_MORE(sgr[i]) ? ":%d" :
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";%d",
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CSI_ARG(sgr[i]));
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}
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printf("m");
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}
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break;
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}
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{
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int i;
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for(i = 0; i < VTERM_MAX_CHARS_PER_CELL && cell->chars[i]; i++) {
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char bytes[6];
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bytes[fill_utf8(cell->chars[i], bytes)] = 0;
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printf("%s", bytes);
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}
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}
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}
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static void dump_eol(const VTermScreenCell *prevcell)
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{
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switch(format) {
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case FORMAT_PLAIN:
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break;
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case FORMAT_SGR:
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if(prevcell->attrs.bold || prevcell->attrs.underline || prevcell->attrs.italic ||
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prevcell->attrs.blink || prevcell->attrs.reverse || prevcell->attrs.strike ||
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prevcell->attrs.font)
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printf("\x1b[m");
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break;
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}
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printf("\n");
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}
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void dump_row(int row)
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{
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VTermPos pos;
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VTermScreenCell prevcell;
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pos.row = row;
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pos.col = 0;
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memset(&prevcell, 0, sizeof(prevcell));
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vterm_state_get_default_colors(vterm_obtain_state(vt), &prevcell.fg, &prevcell.bg);
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while(pos.col < cols) {
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VTermScreenCell cell;
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vterm_screen_get_cell(vts, pos, &cell);
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dump_cell(&cell, &prevcell);
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pos.col += cell.width;
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prevcell = cell;
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}
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dump_eol(&prevcell);
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}
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static int screen_sb_pushline(int cols, const VTermScreenCell *cells, void *user)
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{
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VTermScreenCell prevcell;
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int col;
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memset(&prevcell, 0, sizeof(prevcell));
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vterm_state_get_default_colors(vterm_obtain_state(vt), &prevcell.fg, &prevcell.bg);
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for(col = 0; col < cols; col++) {
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dump_cell(cells + col, &prevcell);
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prevcell = cells[col];
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}
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dump_eol(&prevcell);
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return 1;
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}
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static int screen_resize(int new_rows, int new_cols, void *user)
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{
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rows = new_rows;
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cols = new_cols;
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return 1;
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}
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static VTermScreenCallbacks cb_screen = {
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NULL, /* damage */
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NULL, /* moverect */
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NULL, /* movecursor */
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NULL, /* settermprop */
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NULL, /* bell */
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&screen_resize, /* resize */
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&screen_sb_pushline, /* sb_pushline */
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NULL, /* popline */
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};
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int main(int argc, char *argv[])
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{
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int opt;
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const char *file;
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int fd;
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int len;
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char buffer[1024];
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int row;
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rows = 25;
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cols = 80;
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while((opt = getopt(argc, argv, "f:l:c:")) != -1) {
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switch(opt) {
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case 'f':
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if(streq(optarg, "plain"))
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format = FORMAT_PLAIN;
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else if(streq(optarg, "sgr"))
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format = FORMAT_SGR;
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else {
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fprintf(stderr, "Unrecognised format '%s'\n", optarg);
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exit(1);
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}
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break;
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case 'l':
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rows = atoi(optarg);
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if(!rows)
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rows = 25;
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break;
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case 'c':
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cols = atoi(optarg);
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if(!cols)
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cols = 80;
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break;
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}
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}
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file = argv[optind++];
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fd = open(file, O_RDONLY);
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if(fd == -1) {
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fprintf(stderr, "Cannot open %s - %s\n", file, strerror(errno));
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exit(1);
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}
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vt = vterm_new(rows, cols);
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vterm_set_utf8(vt, TRUE);
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vts = vterm_obtain_screen(vt);
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vterm_screen_set_callbacks(vts, &cb_screen, NULL);
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vterm_screen_reset(vts, 1);
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while((len = read(fd, buffer, sizeof(buffer))) > 0) {
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vterm_input_write(vt, buffer, len);
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}
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for(row = 0; row < rows; row++) {
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dump_row(row);
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}
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close(fd);
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vterm_free(vt);
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return 0;
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}
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