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https://github.com/javalsai/lidm.git
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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>
81 lines
1.9 KiB
C
81 lines
1.9 KiB
C
#include <string.h>
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#include "efield.h"
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#include "ui.h"
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#include "util/utf8.h"
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struct editable_field efield_new(char* content) {
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struct editable_field efield;
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if (content != NULL) {
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efield.pos = strlen(content);
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memcpy(efield.content, content, strlen(content) + 1);
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} else {
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efield_trim(&efield, 0);
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}
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return efield;
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}
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void efield_trim(struct editable_field* self, uint8_t pos) {
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self->pos = pos;
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self->content[pos + 1] = '\0';
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}
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#define BACKSPACE_CODE 127
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void efield_update(struct editable_field* self, char* update) {
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uint8_t insert_len = strlen(update);
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if (insert_len == 0) return;
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if (self->pos > strlen(self->content))
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self->pos = strlen(self->content); // WTF tho
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if (insert_len == 1) {
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// backspace
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if (*update == BACKSPACE_CODE) {
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if (self->pos == 0) return;
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char* curr = &self->content[self->pos];
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char* prev = (char*)utf8back(curr);
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memmove(prev, curr, strlen(self->content) - self->pos + 1);
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self->pos -= curr - prev;
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return;
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}
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// TODO: Del
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}
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// append
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if (strlen(update) + self->pos + 1 >= 255) {
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print_err("field too long");
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}
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// move the after pos, including nullbyte
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memmove(&self->content[self->pos + insert_len], &self->content[self->pos],
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strlen(self->content) - self->pos + 1);
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memcpy(&self->content[self->pos], update, insert_len);
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self->pos += insert_len;
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}
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// returns bool depending if it was able to "use" the seek
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bool efield_seek(struct editable_field* self, char seek) {
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if (*self->content == '\0') return false;
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if (seek == 0) return false;
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uint8_t count = seek < 0 ? -seek : seek;
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char* ptr = &self->content[self->pos];
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char* start = ptr;
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while (count-- > 0) {
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if (seek < 0) {
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if (ptr == self->content) break;
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ptr = (char*)utf8back(ptr);
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} else {
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if (*ptr == '\0') break;
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ptr = (char*)utf8seek(ptr);
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}
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}
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self->pos = (uint8_t)(ptr - self->content);
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return ptr != start;
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}
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