Shav Kinderlehrer
36af47eab8
- Cleanup unneeded headers - Fix helptext typos/bugs - add noreturn to die(), and equiv
86 lines
1.7 KiB
C
86 lines
1.7 KiB
C
#include <stdlib.h>
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#include <string.h>
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#include "types.h"
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#include "util.h"
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void appendline(struct filedata *f, char *data, size_t len) {
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f->lines = realloc(f->lines, sizeof(struct line) * (f->lc + 1));
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size_t loc = f->lc;
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f->lines[loc].len = len;
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f->lines[loc].buf = malloc(len + 1);
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memcpy(f->lines[loc].buf, data, len);
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f->lines[loc].buf[len] = '\0';
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}
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void loadlines(struct filedata *f) {
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f->lc = 0;
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size_t offset = 0;
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size_t linelen = 4096;
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char *line = malloc(linelen);
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if (line == NULL)
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die("malloc");
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for (size_t i = 0; i < f->buflen; i++) {
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char c = f->buf[i];
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if (c == '\n') {
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if (offset < linelen) { // shrink
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char *new_line = realloc(line, offset);
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if (new_line == NULL)
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die("realloc");
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line = new_line;
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}
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appendline(f, line, offset);
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f->lc++;
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free(line);
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offset = 0;
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line = malloc(linelen);
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if (line == NULL)
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die("malloc");
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} else {
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if (offset == linelen) {
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linelen *= 2;
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char *new_line = realloc(line, linelen);
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if (new_line == NULL)
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die("realloc");
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line = new_line;
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}
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line[offset++] = c;
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}
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}
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// capture last line
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if (offset < linelen) { // shrink
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char *new_line = realloc(line, offset);
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if (new_line == NULL)
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die("realloc");
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line = new_line;
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}
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appendline(f, line, offset);
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f->lc++;
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free(line);
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}
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char *linepad(int lc, int total) {
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int padlen = intlen(total) - intlen(lc);
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char *padding = malloc(padlen + 1);
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if (padding == NULL)
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die("malloc");
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if (padlen)
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memset(padding, ' ', padlen);
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padding[padlen] = '\0';
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return padding;
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}
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