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termclip.c
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termclip.c
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// termclip.c (part of mintty)
// Copyright 2008-23 Andy Koppe, 2024 Thomas Wolff
// Adapted from code from PuTTY-0.60 by Simon Tatham and team.
// Licensed under the terms of the GNU General Public License v3 or later.
#include "termpriv.h"
#include "win.h"
#include "child.h"
#include "charset.h"
typedef struct {
size_t capacity; // number of items allocated for text/cattrs
size_t len; // number of actual items at text/cattrs (incl. NUL)
// the text buffer is needed to fill the Unicode clipboard in one chunk
wchar * text; // text to copy (eventually null terminated)
// the attributes part of the buffer is only filled as requested
bool with_attrs;
cattr * cattrs; // matching cattr for each wchar of text
} clip_workbuf;
static void
destroy_clip_workbuf(clip_workbuf * b, bool with_text)
{
assert(b && b->capacity); // we're only called after get_selection, which always allocates
if (with_text)
free(b->text);
if (b->with_attrs)
// the attributes part of the buffer was only filled as requested
free(b->cattrs);
free(b);
}
// All b members must be 0 initially, ca may be null if the caller doesn't care
static void
clip_addchar(clip_workbuf * b, wchar chr, cattr * ca, bool tabs, ulong sizehint)
{
// ensure sizehint > 0
sizehint = max(sizehint, 8);
if (tabs && chr == ' ' && ca && ca->attr & TATTR_CLEAR && ca->attr & ATTR_BOLD) {
// collapse TAB
int l0 = b->len;
while (l0) {
l0--;
if (b->text[l0] == ' ' && b->cattrs[l0].attr & TATTR_CLEAR && b->cattrs[l0].attr & ATTR_DIM)
b->len--;
else
break;
}
chr = '\t';
}
bool err = false;
if (b->len >= b->capacity) {
//b->capacity = b->len ? b->len * 2 : 1024; // x2 strategy, 1K chars initially
//b->capacity += sizehint;
//b->capacity = b->capacity ? b->capacity * 3 / 2 : sizehint;
b->capacity = b->capacity ? b->capacity * 5 / 4 : sizehint;
wchar * _text = renewn(b->text, b->capacity);
if (_text)
b->text = _text;
else
err = true;
if (b->with_attrs) {
// the attributes part of the buffer is only filled as requested
cattr * _cattrs = renewn(b->cattrs, b->capacity);
if (_cattrs)
b->cattrs = _cattrs;
else
err = true;
}
}
if (err) {
//printf("buf alloc err\n");
return;
}
cattr copattr = ca ? *ca : CATTR_DEFAULT;
//printf("setting clipbuf[%ld] = %02X\n", b->len, chr);
if (copattr.attr & TATTR_CLEAR) {
if (!tabs)
copattr.attr &= ~(ATTR_BOLD | ATTR_DIM | TATTR_CLEAR);
}
b->text[b->len] = chr;
if (b->with_attrs)
// the attributes part of the buffer is only filled as requested
b->cattrs[b->len] = copattr;
b->len++;
}
// except OOM, guaranteed at least emtpy null terminated wstring and one cattr
static clip_workbuf *
get_selection(bool attrs, pos start, pos end, bool rect, bool allinline, bool with_tabs)
{
//printf("get_selection attrs %d all %d tabs %d\n", attrs, allinline, with_tabs);
if (with_tabs)
attrs = true; // ensure we can check expanded TABs (#1269)
clip_workbuf *buf = newn(clip_workbuf, 1);
*buf = (clip_workbuf){.with_attrs = attrs,
.capacity = 0, .len = 0, .text = 0, .cattrs = 0};
// estimate buffer size needed, to give memory allocation increments a hint
int lines = end.y - start.y;
long hint = (long)lines * term.cols / 8;
//printf("get_selection %d...%d (%d)\n", start.y, end.y, lines);
// check overflow
if (lines < 0 || hint < 0) {
//printf("buf start > end %d\n", lines);
return buf;
}
int old_top_x = start.x; /* needed for rect==1 */
while (poslt(start, end)) {
bool nl = false;
termline *line = fetch_line(start.y);
if (allinline) {
// this tweak (commit 975403 "export HTML: consider cursor", 2.9.1)
// causes cursor artefacts in connection with ClicksPlaceCursor=yes
// now guarded to cases of HTML copy/export
if (start.y == term.curs.y) {
line->chars[term.curs.x].attr.attr |= TATTR_ACTCURS;
}
}
pos nlpos;
wchar * sixel_clipp = (wchar *)cfg.sixel_clip_char;
/*
* nlpos will point at the maximum position on this line we
* should copy up to. So we start it at the end of the line...
*/
nlpos.y = start.y;
nlpos.x = term.cols;
nlpos.r = false;
/*
* ... move it backwards if there's unused space at the end
* of the line (and also set `nl' if this is the case,
* because in normal selection mode this means we need a
* newline at the end)...
*/
if (allinline) {
if (poslt(nlpos, end))
nl = true;
}
else if (!(line->lattr & LATTR_WRAPPED)) {
//printf("pos %d\n", nlpos.x);
while (nlpos.x && line->chars[nlpos.x - 1].chr == ' ' &&
(cfg.trim_selection ||
(line->chars[nlpos.x - 1].attr.attr & TATTR_CLEAR)) &&
!line->chars[nlpos.x - 1].cc_next && poslt(start, nlpos))
decpos(nlpos);
if (poslt(nlpos, end))
nl = true;
//printf("pos %d nl %d\n", nlpos.x, nl);
}
else {
/* Strip added space in wrapped line after window resizing */
//printf("wr x %d w %d\n", nlpos.x, line->wrappos);
while (nlpos.x > line->wrappos + !(line->lattr & LATTR_WRAPPED2) &&
line->chars[nlpos.x - 1].chr == ' ' &&
(cfg.trim_selection ||
(line->chars[nlpos.x - 1].attr.attr & TATTR_CLEAR)) &&
!line->chars[nlpos.x - 1].cc_next && poslt(start, nlpos))
decpos(nlpos);
//printf("-> x %d w %d\n", nlpos.x, line->wrappos);
}
/*
* ... and then clip it to the terminal x coordinate if
* we're doing rectangular selection. (In this case we
* still did the above, so that copying e.g. the right-hand
* column from a table doesn't fill with spaces on the right.)
*/
if (rect) {
if (nlpos.x > end.x)
nlpos.x = end.x;
nl = (start.y < end.y);
}
while (poslt(start, end) && poslt(start, nlpos)) {
wchar cbuf[16], *p;
int x = start.x;
if (line->chars[x].chr == UCSWIDE) {
start.x++;
continue;
}
while (1) {
wchar c = line->chars[x].chr;
cattr *pca = &line->chars[x].attr;
if (c == SIXELCH && *cfg.sixel_clip_char) {
// copy replacement into clipboard
if (!*sixel_clipp)
sixel_clipp = (wchar *)cfg.sixel_clip_char;
c = *sixel_clipp++;
}
else
sixel_clipp = (wchar *)cfg.sixel_clip_char;
cbuf[0] = c;
cbuf[1] = 0;
for (p = cbuf; *p; p++)
clip_addchar(buf, *p, pca, with_tabs, hint);
if (line->chars[x].cc_next)
x += line->chars[x].cc_next;
else
break;
}
start.x++;
}
if (nl) {
clip_addchar(buf, '\r', 0, false, hint);
// mark lineend with line attributes, particularly double-width/height
cattr lcattr = CATTR_DEFAULT;
lcattr.link = line->lattr;
clip_addchar(buf, '\n', &lcattr, false, hint);
}
start.y++;
start.x = rect ? old_top_x : 0;
release_line(line);
}
clip_addchar(buf, 0, 0, false, hint);
//printf("get_selection done\n");
return buf;
}
static wchar *
get_sel_str(pos start, pos end, bool rect, bool allinline, bool with_tabs)
{
clip_workbuf * buf = get_selection(false, start, end, rect, allinline, with_tabs);
wchar * selstr = buf->text;
destroy_clip_workbuf(buf, false);
return selstr;
}
void
term_copy_as(char what)
{
if (!term.selected)
return;
bool with_tabs = what == 'T' || ((!what || what == 't') && cfg.copy_tabs);
if (what == 'T' || what == 'p') // map "text with TABs" and "plain" to text
what = 't';
clip_workbuf *buf = get_selection(true, term.sel_start, term.sel_end, term.sel_rect,
false, with_tabs);
// for CopyAsHTML, get_selection will be called another time
// but with different parameters
win_copy_as(buf->text, buf->cattrs, buf->len, what);
destroy_clip_workbuf(buf, true);
}
void
term_copy(void)
{
term_copy_as(0);
}
void
term_open(void)
{
if (!term.selected)
return;
wchar * selstr = get_sel_str(term.sel_start, term.sel_end, term.sel_rect, false, false);
// Don't bother opening if it's all whitespace.
wchar * p = selstr;
while (iswspace(*p))
p++;
if (*p)
win_open(selstr, true); // win_open frees its argument
else
free(selstr);
}
static bool filter_NUL;
static char filter[69];
static void
set_filter(string s)
{
bool do_filter(string tag)
{
#if CYGWIN_VERSION_API_MINOR >= 171
char * match = strcasestr(s, tag);
#else
char * match = strstr(s, tag);
#endif
//return match; // a bit simplistic, we should probably properly parse...
if (!match)
return false;
return (match == s || *(match - 1) < '@')
&& match[strlen(tag)] < '@';
}
filter_NUL = false;
*filter = 0;
if (do_filter("C0")) {
filter_NUL = true;
strcat(filter, "\t\n \r ");
}
else {
if (do_filter("BS")) strcat(filter, "\b");
if (do_filter("HT")) strcat(filter, "\t");
if (do_filter("NL")) strcat(filter, "\n");
if (do_filter("CR")) strcat(filter, "\r");
if (do_filter("FF")) strcat(filter, "\f");
if (do_filter("ESC")) strcat(filter, "\e");
}
if (do_filter("DEL"))
strcat(filter, "\177");
if (do_filter("C1")) {
filter_NUL = true;
strcat(filter, "\200\201\202\203\204\205\206\207"
"\210\211\212\213\214\215\216\217"
"\220\221\222\223\224\225\226\227"
"\230\231\232\233\234\235\236\237");
}
if (do_filter("STTY")) {
int i = strlen(filter);
void addchar(wchar c)
{
if (c)
filter[i++] = c;
else
filter_NUL = true;
}
uchar * c_cc = child_termios_chars();
addchar(c_cc[VINTR]);
addchar(c_cc[VQUIT]);
addchar(c_cc[VSUSP]);
addchar(c_cc[VSWTC]);
filter[i] = 0;
}
}
static bool
isin_filter(wchar c)
{
if (c & 0xFFFFFF00)
return false;
if (!c)
return filter_NUL;
return strchr(filter, c);
}
void
term_paste(wchar *data, uint len, bool all)
{
// set/refresh list of characters to be filtered;
// stty settings may have changed
set_filter(cfg.filter_paste);
if (cfg.confirm_multi_line_pasting
&& !(strchr(filter, '\r') && strchr(filter, '\n')))
{
// check multi-line pasting
bool multi_line = false;
for (uint i = 0; i < len; i++) {
if (data[i] == '\r' || data[i] == '\n') {
multi_line = true;
break;
}
}
if (multi_line
&& !win_confirm_text(data, W("Multi-line pasting – confirm?")))
{
return;
}
}
term_cancel_paste();
uint size = len;
term.paste_buffer = newn(wchar, len);
term.paste_len = term.paste_pos = 0;
bool bracketed_paste_split_by_line = term.bracketed_paste
&& cfg.bracketed_paste_split
&& (cfg.bracketed_paste_split > 1 || !term.on_alt_screen);
// Copy data to the paste buffer, converting both Windows-style \r\n and
// Unix-style \n line endings to \r, because that's what the Enter key sends.
for (uint i = 0; i < len; i++) {
// swallow closing paste bracket if included in clipboard contents,
// in order to prevent (malicious) premature end of bracketing
if (term.bracketed_paste) {
if (i + 6 <= len && wcsncmp(W("\e[201~"), &data[i], 6) == 0) {
i += 6 - 1;
continue;
}
}
wchar wc = data[i];
if (wc == '\n')
wc = '\r';
if (!all && *cfg.filter_paste && isin_filter(wc))
wc = ' ';
if (data[i] != '\n')
term.paste_buffer[term.paste_len++] = wc;
else if (i == 0 || data[i - 1] != '\r')
term.paste_buffer[term.paste_len++] = wc;
else
continue;
// split bracket embedding by line
if (bracketed_paste_split_by_line && wc == '\r' && i + 1 < len
&& (i + 2 != len || 0 != wcsncmp(&data[i], W("\r\n"), 2))
)
{
size += 12;
term.paste_buffer = renewn(term.paste_buffer, size);
wcsncpy(&term.paste_buffer[term.paste_len], W("\e[201~\e[200~"), 12);
term.paste_len += 12;
}
}
if (term.bracketed_paste)
child_write("\e[200~", 6);
term_send_paste();
}
void
term_cancel_paste(void)
{
if (term.paste_buffer) {
free(term.paste_buffer);
term.paste_buffer = 0;
if (term.bracketed_paste)
child_write("\e[201~", 6);
}
}
void
term_send_paste(void)
{
int i = term.paste_pos;
/* We must not feed more than MAXPASTEMAX bytes into the pty in one chunk
or it will block on the receiving side (write() does not return).
*/
#define MAXPASTEMAX 7819
#define PASTEMAX 2222
while (i < term.paste_len && i - term.paste_pos < PASTEMAX
&& term.paste_buffer[i++] != '\r'
)
;
if (i < term.paste_len && is_high_surrogate(term.paste_buffer[i]))
i++;
//printf("term_send_paste pos %d @ %d (len %d)\n", term.paste_pos, i, term.paste_len);
child_sendw(term.paste_buffer + term.paste_pos, i - term.paste_pos);
if (i < term.paste_len) {
term.paste_pos = i;
// if only part of the paste buffer has been written to the child,
// the current strategy is to leave the rest pending for on-demand
// invocation of term_send_paste from child_proc within the main loop,
// however, that causes partial loss of large paste contents;
// worse, without the PASTEMAX limitation, if long contents without
// lineends is pasted, the terminal stalls (#810);
// attempts to replace the pending strategy with looping here (to
// paste the whole contents) were not successful to solve the stalling
}
else
term_cancel_paste();
}
void
term_select_all(void)
{
term.sel_start = (pos){-sblines(), 0, 0, 0, false};
term.sel_end = (pos){term_last_nonempty_line(), term.cols, 0, 0, true};
term.selected = true;
if (cfg.copy_on_select)
term_copy();
}
#define dont_debug_user_cmd_clip
static wchar *
term_get_text(bool all, bool screen, bool command)
{
pos start;
pos end;
bool rect = false;
if (command) {
int sbtop = -sblines();
int y = term_last_nonempty_line();
bool skipprompt = true; // skip upper lines of multi-line prompt
if (y < sbtop) {
y = sbtop;
end = (pos){y, 0, 0, 0, false};
}
else {
termline * line = fetch_line(y);
if (line->lattr & LATTR_MARKED) {
//printf("incr %d (sbtop %d/%d rows %d)\n", y, sbtop, term.sblines, term.rows);
if (y > sbtop) {
y--;
end = (pos){y, term.cols, 0, 0, false};
release_line(line);
line = fetch_line(y);
if (line->lattr & LATTR_MARKED) {
y++;
release_line(line);
line = fetch_line(y);
}
}
else {
end = (pos){y, 0, 0, 0, false};
}
}
else {
skipprompt = line->lattr & LATTR_UNMARKED;
end = (pos){y, term.cols, 0, 0, false};
}
if (line->lattr & LATTR_UNMARKED)
end = (pos){y, 0, 0, 0, false};
release_line(line);
}
int yok = y;
while (y-- > sbtop) {
termline * line = fetch_line(y);
#ifdef debug_user_cmd_clip
printf("y %d skip %d marked %X\n", y, skipprompt, line->lattr & (LATTR_UNMARKED | LATTR_MARKED));
#endif
if (skipprompt && (line->lattr & LATTR_UNMARKED))
end = (pos){y, 0, 0, 0, false};
else
skipprompt = false;
if (line->lattr & LATTR_MARKED) {
release_line(line);
break;
}
release_line(line);
yok = y;
}
start = (pos){yok, 0, 0, 0, false};
#ifdef debug_user_cmd_clip
printf("%d:%d...%d:%d\n", start.y, start.x, end.y, end.x);
#endif
}
else if (screen) {
start = (pos){term.disptop, 0, 0, 0, false};
end = (pos){term_last_nonempty_line(), term.cols, 0, 0, false};
}
else if (all) {
start = (pos){-sblines(), 0, 0, 0, false};
end = (pos){term_last_nonempty_line(), term.cols, 0, 0, false};
}
else if (!term.selected) {
return wcsdup(W(""));
}
else {
start = term.sel_start;
end = term.sel_end;
rect = term.sel_rect;
}
return get_sel_str(start, end, rect, false, cfg.copy_tabs);
}
void
term_cmd(char * cmd)
{
// provide scrollback buffer
wchar * wsel = term_get_text(true, false, false);
char * sel = cs__wcstombs(wsel);
free(wsel);
setenv("MINTTY_BUFFER", sel, true);
free(sel);
// provide current selection
wsel = term_get_text(false, false, false);
sel = cs__wcstombs(wsel);
free(wsel);
setenv("MINTTY_SELECT", sel, true);
free(sel);
// provide current screen
wsel = term_get_text(false, true, false);
sel = cs__wcstombs(wsel);
free(wsel);
setenv("MINTTY_SCREEN", sel, true);
free(sel);
// provide last command output
wsel = term_get_text(false, false, true);
sel = cs__wcstombs(wsel);
free(wsel);
setenv("MINTTY_OUTPUT", sel, true);
free(sel);
// provide window title
char * ttl = win_get_title();
setenv("MINTTY_TITLE", ttl, true);
free(ttl);
char * path0 = 0;
char * path1 = 0;
if (*cfg.user_commands_path) {
path0 = getenv("PATH");
path1 = cs__wcstombs(cfg.user_commands_path);
char * ph = strstr(path1, "%s");
if (ph && !strchr(ph + 1, '%')) {
char * path2 = asform(path1, path0);
free(path1);
path1 = path2;
}
setenv("PATH", path1, true);
}
FILE * cmdf = popen(cmd, "r");
unsetenv("MINTTY_TITLE");
unsetenv("MINTTY_OUTPUT");
unsetenv("MINTTY_SCREEN");
unsetenv("MINTTY_SELECT");
unsetenv("MINTTY_BUFFER");
if (cmdf) {
if (term.bracketed_paste)
child_write("\e[200~", 6);
char line[222];
while (fgets(line, sizeof line, cmdf)) {
child_send(line, strlen(line));
}
pclose(cmdf);
if (term.bracketed_paste)
child_write("\e[201~", 6);
}
if (path0)
setenv("PATH", path0, true);
if (path1)
free(path1);
}
#include <time.h>
#include <sys/time.h>
#include <fcntl.h>
#include "winpriv.h" // PADDING
static char *
term_create_html(FILE * hf, int level)
{
char * hbuf = hf ? 0 : strdup("");
size_t hbuf_len = 0;
size_t hbuf_cap = 0;
void
hprintf(FILE * hf, const char * fmt, ...)
{
char * buf;
va_list va;
va_start(va, fmt);
int len = vasprintf(&buf, fmt, va);
va_end(va);
if (hf)
fprintf(hf, "%s", buf);
else {
if (hbuf_len + len > hbuf_cap) {
hbuf_cap = hbuf_cap ? hbuf_cap * 5 / 4 : 5555;
hbuf = renewn(hbuf, hbuf_cap + 1);
}
//strcat(hbuf, buf);
strcpy(hbuf + hbuf_len, buf);
hbuf_len += len;
}
free(buf);
}
pos start = term.sel_start;
pos end = term.sel_end;
bool rect = term.sel_rect;
if (!term.selected) {
start = (pos){term.disptop, 0, 0, 0, false};
end = (pos){term.disptop + term.rows - 1, term.cols, 0, 0, false};
rect = false;
}
bool enhtml = true; // compatibility enhanced HTML
char * font_name = cs__wcstoutf(cfg.font.name);
colour fg_colour = win_get_colour(FG_COLOUR_I);
colour bg_colour = win_get_colour(BG_COLOUR_I);
colour bold_colour = win_get_colour(BOLD_COLOUR_I);
colour blink_colour = win_get_colour(BLINK_COLOUR_I);
hprintf(hf,
"<head>\n"
" <meta name='generator' content='mintty'/>\n"
" <meta http-equiv='Content-Type' content='text/html; charset=UTF-8'/>\n"
" <title>mintty screen dump</title>\n"
" <link rel='stylesheet' type='text/css' href='xterm.css'/>\n"
" <link rel='stylesheet' type='text/css' href='mintty.css'/>\n"
//" <script type='text/javascript' language='JavaScript' src='emoji.js'></script>\n"
" <style type='text/css'>\n"
" #vt100 pre { font-family: inherit; margin: 0; padding: 0; }\n"
);
if (level >= 3)
hprintf(hf, " body.mintty { margin: 0; padding: 0; }\n");
hprintf(hf, " .super, .sub, .small { line-height: 0; font-size: 0.7em; letter-spacing: 0.3em; }\n");
hprintf(hf, " .super { vertical-align: super; }\n");
hprintf(hf, " .sub { vertical-align: sub; }\n");
hprintf(hf, " .double-width {display: inline-block; line-height: 1.2; transform-origin: left; transform: scale(2, 1);}\n");
hprintf(hf, " .double-height-top {display: inline-block; line-height: 2.4; transform-origin: left; transform: scale(2, 2);}\n");
hprintf(hf, " .double-height-bottom {display: none;}\n");
hprintf(hf, " #vt100 span {\n");
if (level >= 2) {
// font needed in <span> for some tools (e.g. Powerpoint)
hprintf(hf,
" font-family: '%s', 'Lucida Console ', 'Consolas', monospace;\n"
// ? 'Lucida Sans Typewriter', 'Courier New', 'Courier'
, font_name);
if (cfg.underl_colour != (colour)-1)
hprintf(hf, " text-decoration-color: #%02X%02X%02X;\n",
red(cfg.underl_colour), green(cfg.underl_colour), blue(cfg.underl_colour));
}
free(font_name);
hprintf(hf, " }\n");
hprintf(hf,
" #vt100 {\n"
" border: 0px solid;\n"
" padding: %dpx;\n"
, PADDING);
if (level >= 2) {
hprintf(hf,
" line-height: %d%%;\n"
" font-size: %dpt;\n"
, line_scale, font_size);
}
if (level >= 3) {
if (*cfg.background && !term.selected) {
wstring wbg = cfg.background;
bool tiled = *wbg == '*';
if (*wbg == '*' || *wbg == '_')
wbg++;
char * bg = cs__wcstoutf(wbg);
int alpha = -1;
char * salpha = strrchr(bg, ',');
if (salpha) {
*salpha = 0;
salpha++;
sscanf(salpha, "%u%c", &alpha, &(char){0});
}
if (alpha >= 0) {
hprintf(hf, " }\n");
hprintf(hf, " #vt100 pre {\n");
hprintf(hf, " background-color: rgba(%d, %d, %d, %.3f);\n",
red(bg_colour), green(bg_colour), blue(bg_colour),
(255.0 - alpha) / 255);
hprintf(hf, " }\n");
hprintf(hf, " .background {\n");
}
char * bgg = guardpath(bg, 4);
if (bgg) {
wchar * bgw = path_posix_to_win_w(bgg);
free(bgg);
free(bg);
bg = cs__wcstoutf(bgw);
free(bgw);
char * cc = bg;
while (*cc) {
if (*cc == '\\')
*cc = '/';
cc++;
}
hprintf(hf, " background-image: url('file:///%s');\n", bg);
}
if (!tiled) {
hprintf(hf, " background-attachment: no-repeat;\n");
hprintf(hf, " background-size: 100%% 100%%;\n");
}
free(bg);
if (alpha < 0) {
hprintf(hf, " }\n");
hprintf(hf, " #vt100 pre {\n");
}
}
else
{
hprintf(hf, " }\n");
hprintf(hf, " #vt100 pre {\n");
hprintf(hf, " background-color: #%02X%02X%02X;\n",
red(bg_colour), green(bg_colour), blue(bg_colour));
}
// add style for <pre>
// default color needed here for some tools (e.g. Powerpoint)
hprintf(hf, " color: #%02X%02X%02X;\n",
red(fg_colour), green(fg_colour), blue(fg_colour));
}
#ifdef float_left
// float needed here to avoid placement left of previous text (Thunderbird)
// this cannot be reproduced anymore; dropped (#900)
if (level >= 3) {
hprintf(hf, " float: left;\n");
#endif
hprintf(hf, " }\n");
// add xterm-compatible style classes for some text attributes
hprintf(hf, " .bd { font-weight: bold }\n");
hprintf(hf, " .it { font-style: italic }\n");
hprintf(hf, " .ul { text-decoration-line: underline }\n");
hprintf(hf, " .st { text-decoration-line: line-through }\n");
hprintf(hf, " .lu { text-decoration-line: line-through underline }\n");
if (bold_colour != (colour)-1)
hprintf(hf, " .bold-color { color: #%02X%02X%02X }\n",
red(bold_colour), green(bold_colour), blue(bold_colour));
else if (blink_colour != (colour)-1)
hprintf(hf, " .blink-color { color: #%02X%02X%02X }\n",
red(blink_colour), green(blink_colour), blue(blink_colour));
for (int i = 0; i < 16; i++) {
colour ansii = win_get_colour(ANSI0 + i);
uchar r = red(ansii), g = green(ansii), b = blue(ansii);
hprintf(hf, " .fg-color%d { color: #%02X%02X%02X }"
" .bg-color%d { background-color: #%02X%02X%02X }\n",
i, r, g, b, i, r, g, b);
}
colour cursor_colour = win_get_colour(CURSOR_COLOUR_I);
hprintf(hf, " #cursor { background-color: #%02X%02X%02X }\n",
red(cursor_colour), green(cursor_colour), blue(cursor_colour));
if (level >= 2) {
for (int i = 1; i <= 10; i++)
if (*cfg.fontfams[i].name) {
char * fn = cs__wcstoutf(cfg.fontfams[i].name);
hprintf(hf, " .font%d { font-family: '%s' }\n", i, fn);
free(fn);
}
if (!*cfg.fontfams[10].name)
hprintf(hf, " .font10 { font-family: 'F25 Blackletter Typewriter' }\n");
}
hprintf(hf, " </style>\n");
hprintf(hf, " <script>\n");
hprintf(hf, " var b1 = 500; var b2 = 300;\n");
hprintf(hf, " function visib (tag, state, timeout) {\n");
hprintf(hf, " var bl = document.getElementsByName(tag);\n");
hprintf(hf, " var vv; if (state) vv = 'visible'; else vv = 'hidden';\n");
hprintf(hf, " var i;\n");
hprintf(hf, " for (i = 0; i < bl.length; i++) {\n");
hprintf(hf, " bl[i].style.visibility = vv;\n");
hprintf(hf, " }\n");
hprintf(hf, " window.setTimeout ('visib (\"' + tag + '\", ' + !state + ', ' + timeout + ')', timeout);\n");
hprintf(hf, " }\n");
hprintf(hf, " function setup () {\n");
hprintf(hf, " window.setTimeout ('visib (\"blink\", 0, b1)', b1);\n");
hprintf(hf, " window.setTimeout ('visib (\"rapid\", 0, b2)', b2);\n");
hprintf(hf, " }\n");
hprintf(hf, " </script>\n");
hprintf(hf, "</head>\n\n");
hprintf(hf, "<body class=mintty onload='setup();'>\n");
//hprintf(hf, " <table border=0 cellpadding=0 cellspacing=0><tr><td>\n");
hprintf(hf, " <div class=background id='vt100'>\n");
hprintf(hf, " <pre\n>");
clip_workbuf * buf = get_selection(true, start, end, rect, level >= 3, false);
int i0 = 0;
bool odd = true;
bool new_line = true;
ushort lattr = LATTR_NORM;
for (uint i = 0; i < buf->len; i++) {
if (!buf->text[i] || buf->text[i] == '\r' || buf->text[i] == '\n'
// buf->cattrs[i] ~!= buf->cattrs[i0] ?
// we need to check more than termattrs_equal_fg
// but less than termchars_equal_override
# define IGNATTR (TATTR_WIDE | TATTR_COMBINING)
|| (buf->cattrs[i].attr & ~IGNATTR) != (buf->cattrs[i0].attr & ~IGNATTR)
|| buf->cattrs[i].truefg != buf->cattrs[i0].truefg
|| buf->cattrs[i].truebg != buf->cattrs[i0].truebg
|| buf->cattrs[i].ulcolr != buf->cattrs[i0].ulcolr
)
{
if (new_line) {
wchar * nl = wcschr(&buf->text[i], '\n');
if (nl) {
int offset = nl - &buf->text[i];
lattr = (ushort)buf->cattrs[i + offset].link & LATTR_MODE;
}
else
lattr = LATTR_NORM;
if (lattr)
hprintf(hf, "<div class='double-%s'>",
lattr == LATTR_WIDE ? "width" :
lattr == LATTR_TOP ? "height-top" : "height-bottom");
new_line = false;
}
// flush chunk with equal attributes
hprintf(hf, "<span class='%s", odd ? "od" : "ev");
cattr * ca = &buf->cattrs[i0];
int fgi = (ca->attr & ATTR_FGMASK) >> ATTR_FGSHIFT;
int bgi = (ca->attr & ATTR_BGMASK) >> ATTR_BGSHIFT;
bool dim = ca->attr & ATTR_DIM;
bool rev = ca->attr & ATTR_REVERSE;
// colour setup preparations;
// we could perhaps reuse apply_attr_colour here, but again
// the situation is specific: some terminal handling (manual bolding)
// is not applicable in HTML export, and we do not want to simply
// always retrieve a plain colour value because we want to specify
// colour style or class only if the respective default is overridden
colour fg = fgi >= TRUE_COLOUR ? ca->truefg : win_get_colour(fgi);
colour bg = bgi >= TRUE_COLOUR ? ca->truebg : win_get_colour(bgi);
// separate ANSI values subject to BoldAsColour
int fga = fgi >= ANSI0 ? fgi & 0xFF : 999;
int bga = bgi >= ANSI0 ? bgi & 0xFF : 999;
if ((ca->attr & ATTR_BOLD) && fga < 8 && term.enable_bold_colour && !rev) {
if (bold_colour != (colour)-1)
fg = bold_colour;
}
else if ((ca->attr & (ATTR_BLINK | ATTR_BLINK2)) && term.enable_blink_colour) {
if (blink_colour != (colour)-1)
fg = blink_colour;
}
if (dim) {
fg = ((fg & 0xFEFEFEFE) >> 1)
// dim against terminal bg (as in apply_attr_colour)
+ ((win_get_colour(BG_COLOUR_I) & 0xFEFEFEFE) >> 1);
}
if (rev) {
fgi ^= bgi; fga ^= bga; fg ^= bg;
bgi ^= fgi; bga ^= fga; bg ^= fg;
fgi ^= bgi; fga ^= bga; fg ^= bg;
}
cattr ac = apply_attr_colour(*ca, ACM_TERM);
fg = ac.truefg;
bg = ac.truebg;
// add marker classes
if (ca->attr & ATTR_FRAMED)
hprintf(hf, " emoji"); // mark emoji style
// add subscript or superscript
if ((ca->attr & (ATTR_SUBSCR | ATTR_SUPERSCR)) == (ATTR_SUBSCR | ATTR_SUPERSCR))
hprintf(hf, " small");
else if (ca->attr & ATTR_SUBSCR)
hprintf(hf, " sub");
else if (ca->attr & ATTR_SUPERSCR)
hprintf(hf, " super");
// style adding function
bool with_style = false;
void add_style(char * s) {
if (!with_style) {
hprintf(hf, "' style='%s", s);
with_style = true;
}
else
hprintf(hf, " %s", s);
}
void add_color(char * pre, int col) {
colour ansii = win_get_colour(ANSI0 + col);
uchar r = red(ansii), g = green(ansii), b = blue(ansii);
add_style("");
hprintf(hf, "%scolor: #%02X%02X%02X;", pre, r, g, b);
}
// add style classes or resolved styles;
// explicit style= attributes instead of xterm-compatible classes
// are used for the sake of tools that do not take styles by class
// (Powerpoint; Word would take id= but not class=)
if (ca->attr & ATTR_BOLD) {
if (enhtml)
add_style("font-weight: bold;");
else
hprintf(hf, " bd");
}
if (ca->attr & ATTR_ITALIC) {
if (enhtml)
add_style("font-style: italic;");
else
hprintf(hf, " it");
}
if (!enhtml) {
if ((ca->attr & (ATTR_UNDER | ATTR_STRIKEOUT)) == (ATTR_UNDER | ATTR_STRIKEOUT))
hprintf(hf, " lu");
else if (ca->attr & ATTR_STRIKEOUT)
hprintf(hf, " st");
else if (ca->attr & UNDER_MASK)
hprintf(hf, " ul");