From 233bbcea37b23925fc48ded7e05891e4169b72c2 Mon Sep 17 00:00:00 2001
From: night0721 <night@night0721.xyz>
Date: Tue, 12 Nov 2024 11:09:00 +0000
Subject: [PATCH] Highlight ; and escape sequence and .

---
 config.h |  6 +++++-
 vip.c    | 40 +++++++++++++++++++++++++++++++++++++---
 2 files changed, 42 insertions(+), 4 deletions(-)

diff --git a/config.h b/config.h
index ac1e25a..003bd91 100644
--- a/config.h
+++ b/config.h
@@ -26,6 +26,8 @@
 #define RED_BG		 "\033[38;2;243;139;168m"
 #define TEAL_FG		 "\033[48;2;148;226;213m"
 #define TEAL_BG		 "\033[38;2;148;226;213m"
+#define PINK_FG		 "\033[48;2;245;194;231m"
+#define PINK_BG		 "\033[38;2;245;194;231m"
 
 /* ERROR is red with bold and italic */
 #define ERROR "\033[38;2;243;139;168m\033[1m\033[3m"
@@ -54,6 +56,7 @@ enum highlight {
 	DEFAULT = 0,
 	SYMBOL,
 	COMMENT,
+	TERMINATOR,
 	MLCOMMENT,
 	KW,
 	KW_TYPE,
@@ -61,6 +64,7 @@ enum highlight {
 	KW_BRACKET,
 	STRING,
 	CHAR,
+	ESCAPE,
 	NUMBER,
 	MATCH,
 	RESET
@@ -108,7 +112,7 @@ language_t langs[] = {
 		"//",
 		"/*",
 		"*/",
-		{ "switch", "if", "while", "for", "break", "continue", "return", "else", "struct", "union", "typedef", "static", "enum", "case", "sizeof", "#include", "#define", "#if", "#elseif", "#endif", "int|", "long|", "double|", "float|", "char|", "unsigned|", "void|", "size_t|", "uint8_t|", NULL },
+		{ "const", "switch", "if", "while", "for", "break", "continue", "return", "else", "struct", "union", "typedef", "static", "enum", "case", "sizeof", "#include", "#define", "#if", "#elseif", "#endif", "int|", "long|", "double|", "float|", "char|", "unsigned|", "void|", "size_t|", "uint8_t|", NULL },
 		{ ".c", ".h", ".cpp", NULL },
 	},
 };
diff --git a/vip.c b/vip.c
index ca2311a..ff83e60 100644
--- a/vip.c
+++ b/vip.c
@@ -599,10 +599,18 @@ void draw_rows(void)
 							bprintf(TEAL_BG);
 							break;
 
+						case ESCAPE:
+							bprintf(PINK_BG);
+							break;
+
 						case SYMBOL:
 							bprintf(SKY_BG);
 							break;
 
+						case TERMINATOR:
+							bprintf(OVERLAY_2_BG);
+							break;
+
 						case COMMENT:
 						case MLCOMMENT:
 							bprintf("\033[3m");
@@ -754,7 +762,7 @@ int is_separator(int c)
 
 int is_symbol(int c)
 {
-	return strchr("+-/*=~%><:?&", c) != NULL;
+	return strchr("+-/*=~%><:?&|.", c) != NULL;
 }
 
 void update_highlight(row_t *row)
@@ -778,6 +786,7 @@ void update_highlight(row_t *row)
 	int in_string = 0;
 	int in_char = 0;
 	int in_include = 0;
+	int in_escape = 0;
 	int in_comment = row->idx > 0 && cur_editor->row[row->idx - 1].opened_comment;
 
 	int i = 0;
@@ -813,6 +822,24 @@ void update_highlight(row_t *row)
 			}
 		}
 
+		if (in_escape) {
+			if (!(c > 47 && c < 58)) {
+				in_escape = 0;
+			} else {
+				row->hl[i] = ESCAPE;
+				i++;
+				prev_sep = 0;
+				continue;
+			}
+		} else {
+			if (c == '\\') {
+				in_escape = 1;
+				row->hl[i] = ESCAPE;
+				i++;
+				continue;
+			}
+		}
+
 		if (in_string) {
 			row->hl[i] = STRING;
 			if (c == '\\' && i + 1 < row->render_size) {
@@ -867,13 +894,13 @@ void update_highlight(row_t *row)
 				i++;
 				continue;
 			}
-		}
+		}	
 
 		if ((isdigit(c) && (prev_sep || prev_hl == NUMBER)) ||
 				(c == '.' && prev_hl == NUMBER) ||
 				(c >= 'A' && c <= 'Z') ||
 				(c == '_' && prev_hl == NUMBER)
-		   ) {
+		) {
 			row->hl[i] = NUMBER;
 			i++;
 			prev_sep = 0;
@@ -894,6 +921,13 @@ void update_highlight(row_t *row)
 			continue;
 		}
 
+		if (c == ';') {
+			row->hl[i] = TERMINATOR;
+			prev_sep = 1;
+			i++;
+			continue;
+		}
+
 		if (prev_sep) {
 			int j;
 			for (j = 0; keywords[j]; j++) {