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#include <stdlib.h>
#include <string.h>
#include "types.h"
#include "util.h"
void appendline(struct filedata *f, char *data, size_t len) {
f->lines = realloc(f->lines, sizeof(struct line) * (f->lc + 1));
size_t loc = f->lc;
f->lines[loc].len = len;
f->lines[loc].buf = malloc(len + 1);
memcpy(f->lines[loc].buf, data, len);
f->lines[loc].buf[len] = '\0';
}
void loadlines(struct filedata *f) {
f->lc = 0;
size_t offset = 0;
size_t linelen = 4096;
char *line = malloc(linelen);
if (line == NULL)
die("malloc");
for (size_t i = 0; i < f->buflen; i++) {
char c = f->buf[i];
if (c == '\n') {
if (offset < linelen) { // shrink
char *new_line = realloc(line, offset);
if (new_line == NULL)
die("realloc");
line = new_line;
}
appendline(f, line, offset);
f->lc++;
free(line);
offset = 0;
line = malloc(linelen);
if (line == NULL)
die("malloc");
} else {
if (offset == linelen) {
linelen *= 2;
char *new_line = realloc(line, linelen);
if (new_line == NULL)
die("realloc");
line = new_line;
}
line[offset++] = c;
}
}
// capture last line
if (offset < linelen) { // shrink
char *new_line = realloc(line, offset);
if (new_line == NULL)
die("realloc");
line = new_line;
}
appendline(f, line, offset);
f->lc++;
free(line);
}
char *linepad(int lc, int total) {
int padlen = intlen(total) - intlen(lc);
char *padding = malloc(padlen + 1);
if (padding == NULL)
die("malloc");
if (padlen)
memset(padding, ' ', padlen);
padding[padlen] = '\0';
return padding;
}
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