refactor to move src and include

Makefile

@@ -6,14 +6,16 @@ VERSION = 1.0
 TARGET = vip
 PREFIX ?= /usr/local
 BINDIR = $(PREFIX)/bin
+MANDIR = $(PREFIX)/share/man/man1
 
 # Flags
 CFLAGS = -O3 -march=native -mtune=native -pipe -s -flto -std=c99 -pedantic -Wall -D_DEFAULT_SOURCE -D_XOPEN_SOURCE=600
 
-SRC = vip.c term.c bar.c
+SRC = src/*.c
+INCLUDE = include
 
 $(TARGET): $(SRC)
-	$(CC) $(SRC) -o $@ $(CFLAGS)
+	$(CC) $(SRC) -o $@ $(CFLAGS) -I$(INCLUDE)
 
 dist:
 	mkdir -p $(TARGET)-$(VERSION)

src/vip.c

@@ -139,6 +139,18 @@ void append_row(char *s, size_t len)
 	vip.rows++;
 }
 
+void row_insert_char(row *row, int at, int c)
+{
+	if (at < 0 || at > row->size) {
+		at = row->size;
+	}
+	row->chars = realloc(row->chars, row->size + 2);
+	memmove(&row->chars[at + 1], &row->chars[at], row->size - at + 1);
+	row->size++;
+	row->chars[at] = c;
+	update_row(row);
+}
+
 void open_editor(char *filename)
 {
 	free(vip.filename);