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csi: implement DECSET/DECRST/DECRQM 2027 - grapheme cluster processing

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This implements private mode 2027 - grapheme cluster processing, as
defined in the "Terminal Unicode Core"[1] specification.

Internally, we just flip the already existing option "grapheme
shaping". Since it's now runtime changeable, we need a copy of it in
the terminal struct, rather than referencing the conf object.

[1]: 13fc5a8993/spec/terminal-unicode-core.tex (L50-L53)
This commit is contained in:
Daniel Eklöf 2023-09-20 13:45:06 +02:00
parent 8a5f2915e9
commit 4eef001d58
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GPG key ID: 5BBD4992C116573F
7 changed files with 21 additions and 1 deletions
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csi.c
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@ -491,6 +491,10 @@ decset_decrst(struct terminal *term, unsigned param, bool enable)
term_disable_app_sync_updates(term);
break;
case 2027:
term->grapheme_shaping = enable;
break;
case 8452:
term->sixel.cursor_right_of_graphics = enable;
break;
@ -572,6 +576,7 @@ decrqm(const struct terminal *term, unsigned param)
case 1070: return decrpm(term->sixel.use_private_palette);
case 2004: return decrpm(term->bracketed_paste);
case 2026: return decrpm(term->render.app_sync_updates.enabled);
case 2027: return decrpm(term->grapheme_shaping);
case 8452: return decrpm(term->sixel.cursor_right_of_graphics);
case 737769: return decrpm(term_ime_is_enabled(term));
}
@ -614,6 +619,7 @@ xtsave(struct terminal *term, unsigned param)
case 1070: term->xtsave.sixel_private_palette = term->sixel.use_private_palette; break;
case 2004: term->xtsave.bracketed_paste = term->bracketed_paste; break;
case 2026: term->xtsave.app_sync_updates = term->render.app_sync_updates.enabled; break;
case 2027: term->xtsave.grapheme_shaping = term->grapheme_shaping; break;
case 8452: term->xtsave.sixel_cursor_right_of_graphics = term->sixel.cursor_right_of_graphics; break;
case 737769: term->xtsave.ime = term_ime_is_enabled(term); break;
}
@ -655,6 +661,7 @@ xtrestore(struct terminal *term, unsigned param)
case 1070: enable = term->xtsave.sixel_private_palette; break;
case 2004: enable = term->xtsave.bracketed_paste; break;
case 2026: enable = term->xtsave.app_sync_updates; break;
case 2027: enable = term->xtsave.grapheme_shaping; break;
case 8452: enable = term->xtsave.sixel_cursor_right_of_graphics; break;
case 737769: enable = term->xtsave.ime; break;