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/* See LICENSE file for copyright and license details. */
#include "common.h"
void
libterminput_parse_sequence__(union libterminput_input *input, struct libterminput_state *ctx)
{
unsigned long long int *nums;
size_t keylen, n, nnums = 0;
char *p;
/* Get number of numbers in the sequence, and allocate an array of at least 2 */
if (ctx->key[0] == '[' && (ctx->key[1] == '<' ? isdigit(ctx->key[2]) : isdigit(ctx->key[1])))
nnums += 1;
for (n = 2U, p = ctx->key; *p; p++) {
if (*p == ';') {
n += 1U;
nnums += 1U;
}
}
nums = alloca(n * sizeof(*nums));
nums[0] = nums[1] = 0;
/* Read numbers and remove numbers and delimiters */
for (keylen = 0, n = 0, p = ctx->key; *p; p++) {
if (*p == ';') {
nums[++n] = 0; /* We made sure above to allocate one extra */
} else if (!isdigit(*p)) {
ctx->key[keylen++] = *p;
} else if (n < 3U) {
if (nums[n] < (ULLONG_MAX - (*p & 15)) / 10)
nums[n] = nums[n] * 10 + (*p & 15);
else
nums[n] = ULLONG_MAX;
}
}
ctx->key[keylen] = '\0';
/* Get times and mods, and reset symbol, and more as keypress */
input->type = LIBTERMINPUT_KEYPRESS;
input->keypress.symbol[0] = '\0';
input->keypress.times = nums[0] + !nums[0];
input->keypress.mods = nums[1] > 1 ? nums[1] - 1 : 0;
input->keypress.mods |= ctx->meta > 1 ? LIBTERMINPUT_META : 0;
switch (ctx->key[0]) {
case '[':
switch (keylen) {
case 2:
switch (ctx->key[1]) {
case 'A': input->keypress.key = LIBTERMINPUT_UP; break;
case 'B': input->keypress.key = LIBTERMINPUT_DOWN; break;
case 'C': input->keypress.key = LIBTERMINPUT_RIGHT; break;
case 'D': input->keypress.key = LIBTERMINPUT_LEFT; break;
case 'E': input->keypress.key = LIBTERMINPUT_BEGIN; break;
case 'F': input->keypress.key = LIBTERMINPUT_END; break;
case 'G': input->keypress.key = LIBTERMINPUT_BEGIN; break;
case 'H': input->keypress.key = LIBTERMINPUT_HOME; break;
case 'M':
if (ctx->flags & LIBTERMINPUT_MACRO_ON_CSI_M)
input->keypress.key = LIBTERMINPUT_MACRO;
else
libterminput_parse_csi_m_mouse_tracking__(input, ctx, nums, nnums);
break;
case 'P':
input->keypress.key = LIBTERMINPUT_F1;
if (ctx->flags & LIBTERMINPUT_PAUSE_ON_CSI_P)
input->keypress.key = LIBTERMINPUT_PAUSE;
break;
case 'Q':
input->keypress.key = LIBTERMINPUT_F2;
break;
case 'R':
if ((ctx->flags & LIBTERMINPUT_AWAITING_CURSOR_POSITION) && nnums >= 2U) {
input->position.type = LIBTERMINPUT_CURSOR_POSITION;
input->position.y = (size_t)nums[0] + (size_t)!nums[0];
input->position.x = (size_t)nums[1] + (size_t)!nums[1];
} else {
input->keypress.key = LIBTERMINPUT_F3;
}
break;
case 'S':
input->keypress.key = LIBTERMINPUT_F4;
break;
case 'T':
libterminput_parse_csi_t_mouse_tracking__(input, ctx);
break;
case 'U': input->keypress.key = LIBTERMINPUT_NEXT; break;
case 'V': input->keypress.key = LIBTERMINPUT_PRIOR; break;
case 'Z':
if (ctx->flags & LIBTERMINPUT_SEPARATE_BACKTAB) {
input->keypress.key = LIBTERMINPUT_BACKTAB;
} else {
input->keypress.key = LIBTERMINPUT_TAB;
input->keypress.mods |= LIBTERMINPUT_SHIFT;
}
break;
case 'a': input->keypress.key = LIBTERMINPUT_UP; goto shift;
case 'b': input->keypress.key = LIBTERMINPUT_DOWN; goto shift;
case 'c': input->keypress.key = LIBTERMINPUT_RIGHT; goto shift;
case 'd': input->keypress.key = LIBTERMINPUT_LEFT; goto shift;
case 'n':
if (nnums == 1U && nums[0] == 0)
input->type = LIBTERMINPUT_TERMINAL_IS_OK;
else if (nnums == 1U && nums[0] == 3)
input->type = LIBTERMINPUT_TERMINAL_IS_NOT_OK;
else
goto suppress;
break;
case 't':
libterminput_parse_csi_small_t_mouse_tracking__(input, ctx);
break;
case 'u':
if (nums[0] > 0x10FFFFULL || (nums[0] & 0xFFF800ULL) == 0xD800ULL) {
input->type = LIBTERMINPUT_NONE;
break;
}
libterminput_encode_utf8__(nums[0], input->keypress.symbol);
input->keypress.times = 1;
break;
case '$':
input->keypress.mods |= LIBTERMINPUT_SHIFT;
if (nums[0] >= 200)
goto suppress;
goto tilde_case;
case '@':
if (ctx->flags & LIBTERMINPUT_INS_ON_CSI_AT) {
input->keypress.key = LIBTERMINPUT_INS;
break;
}
input->keypress.mods |= LIBTERMINPUT_SHIFT;
/* fall through */
case '^':
input->keypress.mods |= LIBTERMINPUT_CTRL;
if (nums[0] >= 200)
goto suppress;
/* fall through */
case '~':
tilde_case:
input->keypress.times = 1;
switch (nums[0]) {
case 1: input->keypress.key = LIBTERMINPUT_HOME; break;
case 2: input->keypress.key = LIBTERMINPUT_INS; break;
case 3: input->keypress.key = LIBTERMINPUT_DEL; break;
case 4: input->keypress.key = LIBTERMINPUT_END; break;
case 5: input->keypress.key = LIBTERMINPUT_PRIOR; break;
case 6: input->keypress.key = LIBTERMINPUT_NEXT; break;
case 7: input->keypress.key = LIBTERMINPUT_HOME; break;
case 8: input->keypress.key = LIBTERMINPUT_END; break;
case 9: input->keypress.key = LIBTERMINPUT_ESC; break; /* just made this one up */
case 11: input->keypress.key = LIBTERMINPUT_F1; break;
case 12: input->keypress.key = LIBTERMINPUT_F2; break;
case 13: input->keypress.key = LIBTERMINPUT_F3; break;
case 14: input->keypress.key = LIBTERMINPUT_F4; break;
case 15: input->keypress.key = LIBTERMINPUT_F5; break;
case 17: input->keypress.key = LIBTERMINPUT_F6; break;
case 18: input->keypress.key = LIBTERMINPUT_F7; break;
case 19: input->keypress.key = LIBTERMINPUT_F8; break;
case 20: input->keypress.key = LIBTERMINPUT_F9; break;
case 21: input->keypress.key = LIBTERMINPUT_F10; break;
case 23: input->keypress.key = LIBTERMINPUT_F11; break;
case 24: input->keypress.key = LIBTERMINPUT_F12; break;
case 25: input->keypress.key = LIBTERMINPUT_F1; goto shift;
case 26: input->keypress.key = LIBTERMINPUT_F2; goto shift;
case 28: input->keypress.key = LIBTERMINPUT_F3; goto shift;
case 29: input->keypress.key = LIBTERMINPUT_F4; goto shift;
case 31: input->keypress.key = LIBTERMINPUT_F5; goto shift;
case 32: input->keypress.key = LIBTERMINPUT_F6; goto shift;
case 33: input->keypress.key = LIBTERMINPUT_F7; goto shift;
case 34: input->keypress.key = LIBTERMINPUT_F8; goto shift;
case 200:
ctx->bracketed_paste = 1;
input->type = LIBTERMINPUT_BRACKETED_PASTE_START;
return;
case 201:
ctx->bracketed_paste = 0;
input->type = LIBTERMINPUT_BRACKETED_PASTE_END;
return;
default:
goto suppress;
}
break;
default:
goto suppress;
}
break;
case 3:
switch (ctx->key[1] == '[' ? ctx->key[2] : 0) {
case 'A': input->keypress.key = LIBTERMINPUT_F1; break;
case 'B': input->keypress.key = LIBTERMINPUT_F2; break;
case 'C': input->keypress.key = LIBTERMINPUT_F3; break;
case 'D': input->keypress.key = LIBTERMINPUT_F4; break;
case 'E': input->keypress.key = LIBTERMINPUT_F5; break;
default:
if (ctx->key[1] == '<' && (ctx->key[2] == 'M' || ctx->key[2] == 'm') && nnums >= 3U) {
/* Parsing for \e[?1003;1006h output. */
input->mouseevent.event = LIBTERMINPUT_PRESS;
if (ctx->key[2] == 'm')
input->mouseevent.event = LIBTERMINPUT_RELEASE;
libterminput_parse_decimal_mouse_tracking__(input, nums);
} else {
goto suppress;
}
}
break;
default:
goto suppress;
}
break;
case '?': /* '?' is attested as synonym for 'O' when the next character is in "pqrstuvwxymlnM" */
case 'O':
switch (!ctx->key[2] ? ctx->key[1] : 0) {
case 'A': input->keypress.key = LIBTERMINPUT_UP; break;
case 'B': input->keypress.key = LIBTERMINPUT_DOWN; break;
case 'C': input->keypress.key = LIBTERMINPUT_RIGHT; break;
case 'D': input->keypress.key = LIBTERMINPUT_LEFT; break;
case 'E': input->keypress.key = LIBTERMINPUT_BEGIN; break; /* not attested */
case 'F': input->keypress.key = LIBTERMINPUT_END; break;
case 'G': input->keypress.key = LIBTERMINPUT_BEGIN; break; /* not attested */
case 'H': input->keypress.key = LIBTERMINPUT_HOME; break;
case 'I': input->keypress.key = LIBTERMINPUT_F12; break;
case 'J': input->keypress.key = LIBTERMINPUT_F1; goto shift;
case 'K': input->keypress.key = LIBTERMINPUT_F2; goto shift;
case 'L': input->keypress.key = LIBTERMINPUT_F3; goto shift;
case 'M': input->keypress.key = LIBTERMINPUT_KEYPAD_ENTER; break;
case 'N': input->keypress.key = LIBTERMINPUT_F4; goto shift;
case 'P': input->keypress.key = LIBTERMINPUT_F1; break;
case 'Q': input->keypress.key = LIBTERMINPUT_F2; break;
case 'R': input->keypress.key = LIBTERMINPUT_F3; break;
case 'S': input->keypress.key = LIBTERMINPUT_F4; break;
case 'T': input->keypress.key = LIBTERMINPUT_F5; break;
case 'U': input->keypress.key = LIBTERMINPUT_F6; break;
case 'V': input->keypress.key = LIBTERMINPUT_F7; break; /* not attested */
case 'W': input->keypress.key = LIBTERMINPUT_F8; break; /* not attested */
case 'X': input->keypress.key = LIBTERMINPUT_F9; break; /* not attested */
case 'Y': input->keypress.key = LIBTERMINPUT_F10; break;
case 'Z': input->keypress.key = LIBTERMINPUT_F11; break; /* not attested */
case 'b': input->keypress.key = LIBTERMINPUT_KEYPAD_POINT; break;
case 'e': input->keypress.key = LIBTERMINPUT_F7; break;
case 'f': input->keypress.key = LIBTERMINPUT_F8; break;
case 'j': input->keypress.key = LIBTERMINPUT_KEYPAD_TIMES; break;
case 'k': input->keypress.key = LIBTERMINPUT_KEYPAD_PLUS; break;
case 'l': input->keypress.key = LIBTERMINPUT_KEYPAD_COMMA; break;
case 'm': input->keypress.key = LIBTERMINPUT_KEYPAD_MINUS; break;
case 'n': input->keypress.key = LIBTERMINPUT_KEYPAD_DECIMAL; break;
case 'o': input->keypress.key = LIBTERMINPUT_KEYPAD_DIVISION; break;
case 'p': input->keypress.key = LIBTERMINPUT_KEYPAD_0; break;
case 'q': input->keypress.key = LIBTERMINPUT_KEYPAD_1; break;
case 'r': input->keypress.key = LIBTERMINPUT_KEYPAD_2; break;
case 's': input->keypress.key = LIBTERMINPUT_KEYPAD_3; break;
case 't': input->keypress.key = LIBTERMINPUT_KEYPAD_4; break;
case 'u': input->keypress.key = LIBTERMINPUT_KEYPAD_5; break;
case 'v': input->keypress.key = LIBTERMINPUT_KEYPAD_6; break;
case 'w': input->keypress.key = LIBTERMINPUT_KEYPAD_7; break;
case 'x': input->keypress.key = LIBTERMINPUT_KEYPAD_8; break;
case 'y': input->keypress.key = LIBTERMINPUT_KEYPAD_9; break;
default:
goto suppress;
}
break;
shift:
input->keypress.mods |= LIBTERMINPUT_SHIFT;
break;
default:
/* This shouldn't happen (without goto) */
suppress:
input->type = LIBTERMINPUT_NONE;
break;
}
}
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