Add optional processing stagev0.7.0

1 files changed, 74 insertions, 0 deletions

diff --git a/src/lib/process.c b/src/lib/process.c
new file mode 100644
index 0000000..61261d9
--- /dev/null
+++ b/src/lib/process.c
@@ -0,0 +1,74 @@
+#include <stdio.h>
+#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) {
+        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;
+    }
+  }
+}
+
+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;
+}