First commit

Signed-off-by: Mattias Andrée <maandree@kth.se>

1 files changed, 106 insertions, 0 deletions

diff --git a/libterminput.h b/libterminput.h
new file mode 100644
index 0000000..b86a2bd
--- /dev/null
+++ b/libterminput.h
@@ -0,0 +1,106 @@
+/* See LICENSE file for copyright and license details. */
+#ifndef LIBTERMINPUT_H
+#define LIBTERMINPUT_H
+
+#include <stddef.h>
+
+
+enum libterminput_mod {
+	LIBTERMINPUT_SHIFT = 0x01,
+	LIBTERMINPUT_META  = 0x02,
+	LIBTERMINPUT_CTRL  = 0x04
+};
+
+enum libterminput_key {
+	LIBTERMINPUT_SYMBOL,
+	LIBTERMINPUT_UP,
+	LIBTERMINPUT_DOWN,
+	LIBTERMINPUT_RIGHT,
+	LIBTERMINPUT_LEFT,
+	LIBTERMINPUT_BEGIN, /* keypad 5 without numlock */
+	LIBTERMINPUT_PAUSE,
+	LIBTERMINPUT_TAB,   /* backtab if with shift */
+	LIBTERMINPUT_F1,
+	LIBTERMINPUT_F2,
+	LIBTERMINPUT_F3,
+	LIBTERMINPUT_F4,
+	LIBTERMINPUT_F5,
+	LIBTERMINPUT_F6,
+	LIBTERMINPUT_F7,
+	LIBTERMINPUT_F8,
+	LIBTERMINPUT_F9,
+	LIBTERMINPUT_F10,
+	LIBTERMINPUT_F11,
+	LIBTERMINPUT_F12,
+	LIBTERMINPUT_HOME,
+	LIBTERMINPUT_INS,
+	LIBTERMINPUT_DEL,
+	LIBTERMINPUT_END,
+	LIBTERMINPUT_PRIOR, /* page up   */
+	LIBTERMINPUT_NEXT,  /* page down */
+	LIBTERMINPUT_ERASE, /* backspace */
+	LIBTERMINPUT_ENTER, /* return    */
+	LIBTERMINPUT_ESC,
+	LIBTERMINPUT_KEYPAD_0,
+	LIBTERMINPUT_KEYPAD_1,
+	LIBTERMINPUT_KEYPAD_2,
+	LIBTERMINPUT_KEYPAD_3,
+	LIBTERMINPUT_KEYPAD_4,
+	LIBTERMINPUT_KEYPAD_5,
+	LIBTERMINPUT_KEYPAD_6,
+	LIBTERMINPUT_KEYPAD_7,
+	LIBTERMINPUT_KEYPAD_8,
+	LIBTERMINPUT_KEYPAD_9,
+	LIBTERMINPUT_KEYPAD_MINUS,
+	LIBTERMINPUT_KEYPAD_COMMA,
+	LIBTERMINPUT_KEYPAD_POINT,
+	LIBTERMINPUT_KEYPAD_ENTER
+};
+
+enum libterminput_type {
+	LIBTERMINPUT_NONE,
+	LIBTERMINPUT_KEYPRESS
+};
+
+struct libterminput_keypress {
+	enum libterminput_type type;
+	enum libterminput_key key;
+	unsigned long long int times; /* if .times > 1, next will be the same, but will .times -= 1 */
+	enum libterminput_mod mods;
+	char symbol[7];               /* use if .key == LIBTERMINPUT_SYMBOL */
+};
+
+union libterminput_input {
+	enum libterminput_type type;
+	struct libterminput_keypress keypress;
+};
+
+
+/**
+ * This struct should be considered opaque
+ */
+struct libterminput_state {
+	int inited; /* whether the input in initialised, not this struct */
+	enum libterminput_mod mods;
+	char meta;
+	char n;
+	char have_stored;
+	char npartial;
+	char stored;
+	char partial[7];
+	char key[44];
+};
+
+
+/**
+ * Get input from the terminal
+ * 
+ * @param   fd     The file descriptor to the terminal
+ * @param   input  Output parameter for input
+ * @param   ctx    State for the terminal, parts of the state may be stored in `input`
+ * @return         1 normally, 0 on end of input, -1 on error
+ */
+int libterminput_read(int fd, union libterminput_input *input, struct libterminput_state *ctx);
+
+
+#endif