Initial Commit, probably needs heavy code cleanup

1 files changed, 72 insertions, 0 deletions

diff --git a/src/lexer.c b/src/lexer.c
new file mode 100644
index 0000000..4f1fcd0
--- /dev/null
+++ b/src/lexer.c
@@ -0,0 +1,72 @@
+#include "all.h"
+#include "ivec.h"
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+lexer_t lex_init(str *src) {
+  lexer_t lx = {0};
+
+  lx.src = src;
+  lx.pos = 0;
+  lx.tokens = (ivec){0};
+
+  return lx;
+}
+
+void lex_run(lexer_t *lx) {
+  for (size_t i = 0; i < lx->src->length; i++) {
+
+    char c = lx->src->data[i];
+    lex_tok_e tok;
+
+    switch (c) {
+    case '+':
+      tok = LEX_PINC;
+      break;
+    case '-':
+      tok = LEX_PDEC;
+      break;
+    case '>':
+      tok = LEX_VINC;
+      break;
+    case '<':
+      tok = LEX_VDEC;
+      break;
+    case '.':
+      tok = LEX_OUT;
+      break;
+    case ',':
+      tok = LEX_IN;
+      break;
+    case '[':
+      tok = LEX_LB;
+      break;
+    case ']':
+      tok = LEX_RB;
+      break;
+    default:
+      continue;
+    }
+
+    iv_push(&lx->tokens, tok);
+  }
+
+  iv_push(&lx->tokens, LEX_EOF);
+}
+
+void lex_free(lexer_t *lx) {
+  if (!lx)
+    return;
+
+  iv_free(&lx->tokens);
+
+  if (lx->src) {
+    free(lx->src->data);
+    free(lx->src);
+  }
+
+  lx->src = NULL;
+  lx->pos = 0;
+}