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javalsai
0b2d0bdf03
* chore(organization): allow nested header and c files * feat: add shell login "middleware" & etc: * lidm now calls `bash` (or other shells, depends on PACKAGE cfg) in login mode as a session wrapper to source most env (can be disabled) * this fixes a lot of env problems with all `/etc/profile` and more Extra: * implemented a musl compatible version of `execvpe` and now lidm should search for PATH everywhere it needs to * `search_path` now also checks if the found binary is properly executable * lidm now uses `confstr` for a decent PATH default if none is found * logs are unbuffered for cases where debug logs appear empty (exit without handlers moment) * chore: one-time evaluate certain makefile vars --------- Co-authored-by: grialion <48643945+grialion@users.noreply.github.com>
63 lines
1.1 KiB
C
63 lines
1.1 KiB
C
#include "util/utf8.h"
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#define UTF8_CONT_MSK 0b11000000
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#define UTF8_CONT_VAL 0b10000000
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bool utf8_iscont(char byte) {
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return (byte & UTF8_CONT_MSK) == UTF8_CONT_VAL;
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}
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size_t utf8len(const char* str) {
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size_t len = 0;
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while (*str != '\0') {
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if (!utf8_iscont(*(str++))) len++;
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}
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return len;
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}
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size_t utf8len_until(const char* str, const char* until) {
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size_t len = 0;
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while (str < until) {
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if (!utf8_iscont(*(str++))) len++;
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}
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return len;
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}
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size_t utf8trunc(char* str, size_t n) {
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size_t bytes = 0;
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while (true) {
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if (str[bytes] == '\0') break;
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if (utf8_iscont(str[bytes])) {
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bytes++;
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continue;
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}
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if (n == 0) {
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str[bytes] = '\0';
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break;
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}
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bytes++;
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n--;
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}
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return bytes;
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}
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const char* utf8back(const char* str) {
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while (utf8_iscont(*(--str))) {
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}
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return str;
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}
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const char* utf8seek(const char* str) {
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while (utf8_iscont(*(++str))) {
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}
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return str;
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}
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const char* utf8seekn(const char* str, size_t n) {
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while (n > 0 && *str != '\0') {
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str = utf8seek(str);
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n--;
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}
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return str;
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}
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