Import official C23 code examples for Modern C (Jens Gustedt, 2024)HEADupstream-importmain

- Add official C source files, Makefile, c23-fallback.h, and LICENSE
- Update README.md with study mirror notice

1 files changed, 156 insertions, 0 deletions

diff --git a/esc.h b/esc.h
new file mode 100644
index 0000000..d355c90
--- /dev/null
+++ b/esc.h
@@ -0,0 +1,156 @@
+#ifndef ESCAPE_H
+#define ESCAPE_H 1
+
+#include <stdio.h>
+
+#define ESC_CSI     "\e["
+#define ESC_SS2     "\eN"
+#define ESC_SS3     "\eO"
+#define ESC_SCI     "\eZ"
+#define ESC_ROI     "\e%"
+
+#define ESC_SAVE    ESC_CSI "s"
+#define ESC_RESTORE ESC_CSI "u"
+#define ESC_HOME    ESC_CSI "H"
+#define ESC_CLRSCR  ESC_CSI "1J"
+#define ESC_CLEAR   ESC_CSI "2K"
+#define ESC_UP      ESC_CSI "A"
+#define ESC_DOWN    ESC_CSI "B"
+#define ESC_FRWD    ESC_CSI "C"
+#define ESC_BKWD    ESC_CSI "D"
+#define ESC_END     ESC_CSI "F"
+#define ESC_INSERT  ESC_CSI "2~"
+#define ESC_DELETE  ESC_CSI "3~"
+#define ESC_PGUP    ESC_CSI "5~"
+#define ESC_PGDOWN  ESC_CSI "6~"
+
+// F1 to F4 are special
+#define ESC_F1      ESC_SS3 "P"
+#define ESC_F2      ESC_SS3 "Q"
+#define ESC_F3      ESC_SS3 "R"
+#define ESC_F4      ESC_SS3 "S"
+#define ESC_S_F1    ESC_CSI "1;2P"
+#define ESC_S_F2    ESC_CSI "1;2Q"
+#define ESC_S_F3    ESC_CSI "1;2R"
+#define ESC_S_F4    ESC_CSI "1;2S"
+#define ESC_C_F1    ESC_CSI "1;5P"
+#define ESC_C_F2    ESC_CSI "1;5Q"
+#define ESC_C_F3    ESC_CSI "1;5R"
+#define ESC_C_F4    ESC_CSI "1;5S"
+
+#define ESC_F5      ESC_CSI "15~"
+#define ESC_F6      ESC_CSI "17~"
+#define ESC_F7      ESC_CSI "18~"
+#define ESC_F8      ESC_CSI "19~"
+#define ESC_F9      ESC_CSI "20~"
+#define ESC_F10     ESC_CSI "21~"
+#define ESC_F11     ESC_CSI "23~"
+#define ESC_F12     ESC_CSI "24~"
+
+#define ESC_S_F5    ESC_CSI "15;2~"
+#define ESC_S_F6    ESC_CSI "17;2~"
+#define ESC_S_F7    ESC_CSI "18;2~"
+#define ESC_S_F8    ESC_CSI "19;2~"
+#define ESC_S_F9    ESC_CSI "20;2~"
+#define ESC_S_F10   ESC_CSI "21;2~"
+#define ESC_S_F11   ESC_CSI "23;2~"
+#define ESC_S_F12   ESC_CSI "24;2~"
+
+#define ESC_C_F5    ESC_CSI "15;5~"
+#define ESC_C_F6    ESC_CSI "17;5~"
+#define ESC_C_F7    ESC_CSI "18;5~"
+#define ESC_C_F8    ESC_CSI "19;5~"
+#define ESC_C_F9    ESC_CSI "20;5~"
+#define ESC_C_F10   ESC_CSI "21;5~"
+#define ESC_C_F11   ESC_CSI "23;5~"
+#define ESC_C_F12   ESC_CSI "24;5~"
+
+#define ESC_HIDE    ESC_CSI "?25l"
+#define ESC_SHOW    ESC_CSI "?25h"
+
+#define ESC_NORMAL  ESC_CSI "0m"
+#define ESC_BOLD    ESC_CSI "1m"
+#define ESC_UNDERL  ESC_CSI "4m"
+#define ESC_BLINK   ESC_CSI "5m"
+#define ESC_INVERS  ESC_CSI "7m"
+#define ESC_FRAMED  ESC_CSI "51m"
+#define ESC_CIRCLED ESC_CSI "52m"
+#define ESC_OVERL   ESC_CSI "53m"
+
+#define ESC_TBLACK  ESC_CSI "30m"
+#define ESC_TRED    ESC_CSI "38;2;255;0;0m"
+#define ESC_TGREEN  ESC_CSI "38;2;0;255;0m"
+#define ESC_TYELLOW ESC_CSI "38;2;255;255;0m"
+#define ESC_TBLUE   ESC_CSI "38;2;0;0;255m"
+#define ESC_TMAGENTA ESC_CSI "38;2;255;0;255m"
+#define ESC_TCYAN   ESC_CSI "38;2;0;255;255m"
+#define ESC_TWHITE  ESC_CSI "37m"
+
+#define ESC_BBLACK  ESC_CSI "40m"
+#define ESC_BRED    ESC_CSI "48;2;255;0;0m"
+#define ESC_BGREEN  ESC_CSI "48;2;0;255;0m"
+#define ESC_BYELLOW ESC_CSI "48;2;255;255;0m"
+#define ESC_BBLUE   ESC_CSI "48;2;0;0;255m"
+#define ESC_BMAGENTA ESC_CSI "48;2;255;0;255m"
+#define ESC_BCYAN   ESC_CSI "48;2;0;255;255m"
+#define ESC_BWHITE  ESC_CSI "47m"
+
+#define ESC_BLIGHTGREY ESC_CSI "48;2;220;220;220m"
+#define ESC_BGREY      ESC_CSI "48;2;128;128;128m"
+
+
+enum { esc_top = 1, esc_bottom = 2, esc_left = 4, esc_right = 8, };
+
+#define ESC_BORDER                                      \
+((char const*const[]){                                  \
+[0] = " ",                                              \
+  [esc_top] = "━",                                      \
+  [esc_bottom] = "━",                                   \
+  [esc_bottom | esc_top] = "━",                         \
+  [esc_left] = "┃",                                     \
+  [esc_left | esc_top] = "┏",                           \
+  [esc_left | esc_bottom] = "┗",                        \
+  [esc_left | esc_bottom | esc_top] = "┣",              \
+  [esc_right] = "┃",                                    \
+  [esc_right | esc_top] = "┓",                          \
+  [esc_right | esc_bottom] = "┛",                       \
+  [esc_right | esc_bottom | esc_top] = "┫",             \
+  [esc_right | esc_left] = "┃",                         \
+  [esc_right | esc_left | esc_top] = "┳",               \
+  [esc_right | esc_left | esc_bottom] = "┻",            \
+  [esc_right | esc_left | esc_bottom | esc_top] = "╋",  \
+  })
+
+enum { esc_nw = 1, esc_ne = 2, esc_sw = 4, esc_se = 8, };
+
+#define ESC_BLOCK                               \
+((char const*const[]){                          \
+[0] = " ",                                      \
+  [esc_nw] = "▘",                               \
+  [esc_ne] = "▝",                               \
+  [esc_ne | esc_nw] = "▀",                      \
+  [esc_sw] = "▖",                               \
+  [esc_sw | esc_nw] = "▌",                      \
+  [esc_sw | esc_ne] = "▞",                      \
+  [esc_sw | esc_ne | esc_nw] = "▛",             \
+  [esc_se] = "▗",                               \
+  [esc_se | esc_nw] = "▚",                      \
+  [esc_se | esc_ne] = "▐",                      \
+  [esc_se | esc_ne | esc_nw] = "▜",             \
+  [esc_se | esc_sw] = "▄",                      \
+  [esc_se | esc_sw | esc_nw] = "▙",             \
+  [esc_se | esc_sw | esc_ne] = "▟",             \
+  [esc_se | esc_sw | esc_ne | esc_nw] = "█",    \
+  })
+
+/**
+ ** @brief relative cursor movement
+ **/
+void esc_move(FILE* f, int vert, int hori);
+
+/**
+ ** @brief asolute cursor movement
+ **/
+void esc_goto(FILE* f, unsigned vert, unsigned hori);
+
+#endif