From 95428c41f0ee3ac108cf1a4acfaa67157ad954dc Mon Sep 17 00:00:00 2001
From: Sadeep Madurange <sadeep@asciimx.com>
Date: Sun, 24 May 2026 18:00:38 +0800
Subject: Build DOM.

---
 parse.c | 40 +++++++++++++++++++++++++++++-----------
 1 file changed, 29 insertions(+), 11 deletions(-)

(limited to 'parse.c')

diff --git a/parse.c b/parse.c
index a9998e3..f204440 100644
--- a/parse.c
+++ b/parse.c
@@ -1,4 +1,5 @@
 #include <ctype.h>
+#include <err.h>
 #include <stddef.h>
 
 #include "parse.h"
@@ -22,9 +23,11 @@ typedef enum {
 } parse_mode;
 
 extern void on_open(const char *tag, size_t n);
+extern void on_open_end(void);
 extern void on_close(const char *tag, size_t n);
 extern void on_text(const char *text, size_t n);
-extern void on_attr(const char *name, size_t nname, const char *val, size_t nval);
+extern void on_attr(const char *name, size_t nname, 
+	const char *val, size_t nval);
 
 void parse(const char *s)
 {
@@ -82,33 +85,44 @@ void parse(const char *s)
 			n = 0;
 			while (*s) {
 				if (*s == '>') {
-					mode = DATA;
 					if (n > 0 && s[-1] == '/')
 						n--;
+
+					if (n > 0)
+						on_open(p, n);
+					on_open_end();
+
 					ADVANCE(s, 1);
+					mode = DATA;
 					break;
 				}
 
 				if (*s == ' ') {
+					if (n > 0)
+						on_open(p, n);
+
 					while (*s == ' ')
 						ADVANCE(s, 1);
 
 					if (isalpha((unsigned char)*s))
 						mode = ATTR_NAME;
-					else if (*s == '/' && s[1] == '>') {
-						ADVANCE(s, 2);  // ignore self-closing tags
+					else if (*s == '>') {
+						on_open_end();
+						ADVANCE(s, 1);
 						mode = DATA;
-					}
+					} else if (*s == '/' && s[1] == '>') {
+						on_open_end();
+						ADVANCE(s, 2);
+						mode = DATA;
+					} else
+						errx(1, "Invalid character in open tag: %c", *s);
+
 					break;
 				}
 
 				n++;
 				ADVANCE(s, 1);
 			}
-
-			if (n > 0)
-				on_open(p, n);
-
 			break;
 		case TAG_CLOSE:
 			p = s;
@@ -120,6 +134,7 @@ void parse(const char *s)
 					ADVANCE(s, 1);
 					break;
 				}
+
 				n++;
 				ADVANCE(s, 1);
 			}
@@ -131,17 +146,18 @@ void parse(const char *s)
 				if (*s == '=') {
 					attr_name = p;
 					attr_name_len = n;
-					mode = ATTR_VALUE;
 					ADVANCE(s, 1);
 					if (*s == '"' || *s == '\'')
 						ADVANCE(s, 1);
+					mode = ATTR_VALUE;
 					break;
 				}
 
 				if (*s == '>') {  // <input disabled>
 					on_attr(p, n, NULL, 0);
-					mode = DATA;
+					on_open_end();
 					ADVANCE(s, 1);
+					mode = DATA;
 					break;
 				}
 
@@ -159,6 +175,7 @@ void parse(const char *s)
 					ADVANCE(s, 1);
 					break;
 				}
+
 				n++;
 				ADVANCE(s, 1);
 			}
@@ -181,6 +198,7 @@ void parse(const char *s)
 					ADVANCE(s, 1);
 					break;
 				}
+
 				n++;
 				ADVANCE(s, 1);
 			}
-- 
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