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// SPDX-License-Identifier: BSL-1.0
#define NEW_WIDTH(num, width) ((num << 2) | (((unsigned)width) & 3))
#include "charclassification.inc"
#include "charclassification_konsole_2018.inc"
#include "charclassification_konsole_2022.inc"
#undef NEW_WIDTH
typedef struct termpaintp_width_ {
const uint16_t* termpaint_char_width_offsets;
const uint16_t* termpaint_char_width_data;
} termpaintp_width;
static const termpaintp_width termpaintp_char_width_default = {
.termpaint_char_width_offsets = termpaint_char_width_offsets_default,
.termpaint_char_width_data = termpaint_char_width_data_default
};
static const termpaintp_width termpaintp_char_width_konsole2018 = {
.termpaint_char_width_offsets = termpaint_char_width_offsets_konsole_2018,
.termpaint_char_width_data = termpaint_char_width_data_konsole_2018
};
static const termpaintp_width termpaintp_char_width_konsole2022 = {
.termpaint_char_width_offsets = termpaint_char_width_offsets_konsole_2022,
.termpaint_char_width_data = termpaint_char_width_data_konsole_2022
};
static int termpaintp_char_width(const termpaintp_width *table, int ch) {
if (ch >= 0x10ffff) {
// outside of unicode, assume narrow
return 1;
}
const uint16_t* termpaint_char_width_offsets = table->termpaint_char_width_offsets;
const uint16_t* termpaint_char_width_data = table->termpaint_char_width_data;
int low = termpaint_char_width_offsets[ch >> 14];
int high = termpaint_char_width_offsets[(ch >> 14) + 1] - 1;
int search = (ch & 0x3fff) << 2;
while (1) {
if (low == high) {
if ((termpaint_char_width_data[low] & 0xfffc) > search) {
// this is save as each section always starts with data for 0
--low;
}
int val = termpaint_char_width_data[low] & 3;
if (val == 3) {
return -1;
}
return val;
}
int mid = low + (high - low) / 2;
if (termpaint_char_width_data[mid] < search) {
low = mid + 1;
} else {
if ((termpaint_char_width_data[mid] & 0xfffc) == search) {
int val = termpaint_char_width_data[mid] & 3;
if (val == 3) {
return -1;
}
return val;
} else {
high = mid;
}
}
}
}
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