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mdview2: полировка статус-бара/справки/детекции + libc min/max

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- status-bar: dirty-tracking (числа/процент/кодировка перерисовываются
  только при изменении), поле кодировки сдвинуто к DIV1_X-10 (8 симв.)
- md_key: HOME/END не перерисовывают экран, если позиция не меняется
- help: версия v1.0(a3), добавлены F2/F3 (RAW/Wrap), компактные секции
- enc: детекция по 5 частотным буквам и сэмплу 1КБ; ENC_UNSUPPORTED (UTF16/32)
- libc: добавлены min()/max() (naked, <stdlib.h>) + сборка в lib/Makefile

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Alexander Petrov
2026-06-30 20:43:04 +03:00
parent 1b78dda125
commit 733746572c
9 changed files with 260 additions and 104 deletions
Download Patch File Download Diff File Expand all files Collapse all files
examples/mdview2/mdview2_help.c
+16 -12
View File
@@ -17,7 +17,7 @@
/* Геометрия диалога справки (в символьных координатах 80×32). */
#define HELP_X 8u /* левая граница рамки */
#define HELP_Y 4u /* верхняя граница рамки */
#define HELP_Y 3u /* верхняя граница рамки */
#define HELP_W 64u /* ширина рамки (включая │) */
#define HELP_H 26u /* высота рамки (включая ─) */
@@ -28,10 +28,13 @@ static void help_line(uint8_t r, const char *s, uint8_t attr)
uint8_t x = HELP_X + 1u;
uint8_t y = HELP_Y + 1u + r;
uint8_t len = (uint8_t)strlen(s);
if (len > HELP_W - 2u) len = HELP_W - 2u;
if (len > HELP_W - 2u)
len = HELP_W - 2u;
bios_set_place(y, x);
if (len > 0) bios_writeattr(s, len, attr);
if (len > 0)
bios_writeattr(s, len, attr);
/* place уже продвинут bios_writeattr на len колонок (verified). */
if (len < HELP_W - 2u) {
bios_fillcharattr(' ', ATTR_HELP_BG, (uint8_t)(HELP_W - 2u - len));
@@ -70,24 +73,25 @@ void show_help(void)
/* Содержимое (20 внутренних строк) */
uint8_t r = 0;
help_line(r++, "", ATTR_HELP_BG);
help_line(r++, " MDView v0.2 -- Markdown Viewer for Sprinter", ATTR_HELP_HDR);
help_line(r++, " (c) 2026 Petrov A.G.", ATTR_HELP_BG);
help_line(r++, " MDView v1.0 (a3) -- Markdown Viewer for Sprinter", ATTR_HELP_HDR);
help_line(r++, " (c) 2026 \x8F\xA5\xE2\xE0\xAE\xA2 \x80\x2E\x83\x2E",
ATTR_HELP_BG);
help_line(r++, "", ATTR_HELP_BG);
help_line(r++, " Navigation:", ATTR_HELP_HDR);
help_line(r++, " \x18 \x19 Scroll one line up / down", ATTR_HELP_BG);
help_line(r++, " PgUp PgDn Scroll one page up / down", ATTR_HELP_BG);
help_line(r++, " Home End Jump to beginning / end of document", ATTR_HELP_BG);
help_line(r++, " \x1B \x1A Horizontal pan (code blocks/tables)", ATTR_HELP_BG);
help_line(r++, " \x1B \x1A Horizontal pan (code blocks/tables/unwrap)", ATTR_HELP_BG);
help_line(r++, " Esc F10 Exit", ATTR_HELP_BG);
help_line(r++, "", ATTR_HELP_BG);
help_line(r++, " Markdown elements:", ATTR_HELP_HDR);
help_line(r++, " # ## ### Headings H1-H6", ATTR_HELP_BG);
help_line(r++, " **bold** *italic* `code` ~~strike~~", ATTR_HELP_BG);
help_line(r++, " > quote ``` ... ``` Fenced code block", ATTR_HELP_BG);
help_line(r++, " - * + item 1. 2. Ordered list", ATTR_HELP_BG);
help_line(r++, " |----|----| Tables", ATTR_HELP_BG);
help_line(r++, " # ## ### Headings H1-H6, **bold**, *italic*,", ATTR_HELP_BG);
help_line(r++, " `code`, ``` code ```, ~~strike~~, > quote", ATTR_HELP_BG);
help_line(r++, " - * + 1. 2. Ordered list, |----|----| Tables", ATTR_HELP_BG);
help_line(r++, "", ATTR_HELP_BG);
help_line(r++, " Encoding:", ATTR_HELP_HDR);
help_line(r++, " Encoding and View modes:", ATTR_HELP_HDR);
help_line(r++, " F2 RAW Mode", ATTR_HELP_BG);
help_line(r++, " F3 Wrap/Unwrap Mode for RAW View", ATTR_HELP_BG);
help_line(r++, " F8 Cycle CP866 / CP1251 / KOI8-R / UTF-8", ATTR_HELP_BG);
help_line(r++, " Auto-detected on open; F8 to override", ATTR_HELP_BG);
help_line(r++, "", ATTR_HELP_BG);