From 184cc79a4c946dbf4d9de0e14e601b3140586c86 Mon Sep 17 00:00:00 2001
From: Chewing_Bever <roosensjef@gmail.com>
Date: Tue, 12 Mar 2024 20:51:48 +0100
Subject: [PATCH] test(parser): started some tests

---
 src/ast.c            |  3 ++-
 src/lexer/lexer.c    |  3 +++
 src/parser/parser.c  | 18 ++++++++++++++++--
 test/lexer/lexer.c   | 11 +++++++----
 test/parser/parser.c | 38 ++++++++++++++++++++++++++++++++++++++
 5 files changed, 66 insertions(+), 7 deletions(-)
 create mode 100644 test/parser/parser.c

diff --git a/src/ast.c b/src/ast.c
index a718e8e..62c2221 100644
--- a/src/ast.c
+++ b/src/ast.c
@@ -17,10 +17,11 @@ mrk_err mrk_ast_node_child_append(mrk_ast_node **out, mrk_ast_node *parent) {
     return mrk_err_failed_alloc;
   }
 
+  parent->children.arr = children;
+
   MRK_RES(mrk_ast_node_init(out));
 
   children[parent->children.len] = *out;
-  parent->children.arr = children;
   parent->children.len++;
 
   return mrk_err_ok;
diff --git a/src/lexer/lexer.c b/src/lexer/lexer.c
index 8305e86..d7aba98 100644
--- a/src/lexer/lexer.c
+++ b/src/lexer/lexer.c
@@ -271,6 +271,7 @@ void mrk_lexer_lex_start_of_line(mrk_token *out, mrk_lexer *lexer) {
     } else {
       mrk_lexer_emit(out, lexer, mrk_token_type_newline);
     }
+    break;
   case '\t':
     mrk_lexer_emit(out, lexer, mrk_token_type_indent);
     break;
@@ -368,6 +369,8 @@ mrk_lexer_err mrk_lexer_next(mrk_token *out, mrk_lexer *lexer) {
     return mrk_lexer_err_done;
   }
 
+  mrk_lexer_reset(lexer);
+
   if (lexer->pos.line_index == 0 ||
       lexer->last_emitted == mrk_token_type_indent) {
     mrk_lexer_lex_start_of_line(out, lexer);
diff --git a/src/parser/parser.c b/src/parser/parser.c
index 5b5388c..6653883 100644
--- a/src/parser/parser.c
+++ b/src/parser/parser.c
@@ -1,5 +1,11 @@
 #include "mrk/parser_internal.h"
 
+mrk_err mrk_parser_init(mrk_parser **out) {
+  MRK_CALLOC(out, 1, sizeof(mrk_parser));
+
+  return mrk_err_ok;
+}
+
 void mrk_parser_open(mrk_parser *parser, mrk_lexer *lexer) {
   parser->lexer = lexer;
 
@@ -14,7 +20,7 @@ mrk_err mrk_parser_parse(mrk_ast_node **out, mrk_parser *parser) {
   mrk_ast_node *root;
   MRK_RES(mrk_ast_node_init(&root));
 
-  while (!mrk_lexer_done(parser->lexer)) {
+  while (!mrk_parser_done(parser)) {
     mrk_ast_node *child;
 
     MRK_RES(mrk_ast_node_child_append(&child, root));
@@ -36,7 +42,7 @@ mrk_err mrk_parser_parse_block(mrk_ast_node *out, mrk_parser *parser) {
   }
 
   if (!mrk_parser_done(parser)) {
-    mrk_parser_eat(NULL, parser, mrk_token_type_blank_line);
+    MRK_RES(mrk_parser_eat(NULL, parser, mrk_token_type_blank_line));
   }
 
   return mrk_err_ok;
@@ -66,6 +72,9 @@ mrk_err mrk_parser_parse_header(mrk_ast_node *out, mrk_parser *parser) {
       child->type = mrk_ast_node_type_space;
       mrk_parser_advance(parser);
       break;
+    case mrk_token_type_left_bracket:
+      mrk_parser_parse_link(child, parser);
+      break;
     }
   }
 
@@ -87,6 +96,7 @@ mrk_err mrk_parser_parse_text(mrk_ast_node *out, mrk_parser *parser) {
   mrk_token text_token;
   MRK_RES(mrk_parser_eat(&text_token, parser, mrk_token_type_text));
 
+  out->type = mrk_ast_node_type_text;
   // Start in input buffer
   out->args[0].num = text_token.start;
   // End in input buffer
@@ -94,3 +104,7 @@ mrk_err mrk_parser_parse_text(mrk_ast_node *out, mrk_parser *parser) {
 
   return mrk_err_ok;
 }
+
+mrk_err mrk_parser_parse_link(mrk_ast_node *out, mrk_parser *parser) {
+  MRK_RES(mrk_parser_eat(NULL, parser, mrk_token_type_left_bracket));
+}
diff --git a/test/lexer/lexer.c b/test/lexer/lexer.c
index 6a8e61c..4e3ca51 100644
--- a/test/lexer/lexer.c
+++ b/test/lexer/lexer.c
@@ -9,7 +9,7 @@
 void test_lexer_header() {
   LEXER_INIT();
 
-  const char *buf = "#### hallo";
+  const char *buf = "#### hallo hallo";
   mrk_lexer_open(lxr, buf, 0);
 
   mrk_token t;
@@ -18,6 +18,11 @@ void test_lexer_header() {
   TEST_CHECK_(t.start == 0, "t.start == %lu", t.start);
   TEST_CHECK(t.end == 4);
 
+  TEST_CHECK(mrk_lexer_next(&t, lxr) == mrk_lexer_err_ok);
+  TEST_CHECK(t.type == mrk_token_type_text);
+  TEST_CHECK_(t.start == 4, "t.start == %lu", t.start);
+  TEST_CHECK(t.end == 16);
+
   mrk_lexer_free(lxr);
 }
 
@@ -56,9 +61,7 @@ void test_lexer_simple1() {
   TEST_CHECK(mrk_lexer_next(&t, lxr) == mrk_lexer_err_ok);
   TEST_CHECK(t.type == mrk_token_type_text);
   TEST_CHECK(mrk_lexer_next(&t, lxr) == mrk_lexer_err_ok);
-  TEST_CHECK(t.type == mrk_token_type_newline);
-  TEST_CHECK(mrk_lexer_next(&t, lxr) == mrk_lexer_err_ok);
-  TEST_CHECK(t.type == mrk_token_type_newline);
+  TEST_CHECK(t.type == mrk_token_type_blank_line);
   TEST_CHECK(mrk_lexer_next(&t, lxr) == mrk_lexer_err_ok);
   TEST_CHECK(t.type == mrk_token_type_text);
 }
diff --git a/test/parser/parser.c b/test/parser/parser.c
new file mode 100644
index 0000000..cb70983
--- /dev/null
+++ b/test/parser/parser.c
@@ -0,0 +1,38 @@
+#include "test.h"
+
+#include "mrk/lexer.h"
+#include "mrk/parser.h"
+
+#define LEXER_INIT() \
+  mrk_lexer *lxr; \
+  TEST_CHECK(mrk_lexer_init(&lxr) == mrk_err_ok)
+
+#define PARSER_INIT() \
+  mrk_parser *psr; \
+  TEST_CHECK(mrk_parser_init(&psr) == mrk_err_ok)
+
+#define PARSER_OPEN(buf) \
+  mrk_lexer *lxr; \
+  TEST_CHECK(mrk_lexer_init(&lxr) == mrk_err_ok); \
+  mrk_parser *psr; \
+  TEST_CHECK(mrk_parser_init(&psr) == mrk_err_ok); \
+  mrk_lexer_open(lxr, buf, 0); \
+  mrk_parser_open(psr, lxr)
+
+
+void test_parse_header() {
+  const char *buf = "### hello world";
+  PARSER_OPEN(buf);
+
+  mrk_ast_node *root;
+  TEST_CHECK(mrk_parser_parse(&root, psr) == mrk_err_ok);
+
+  mrk_ast_node *header = root->children.arr[0];
+  TEST_CHECK(header->type == mrk_ast_node_type_header);
+  TEST_CHECK(header->children.arr[0]->type == mrk_ast_node_type_text);
+}
+
+TEST_LIST = {
+  { "parser header", test_parse_header },
+  { NULL, NULL }
+};