From 9b230368c21fae27e04855ca944221ce136a42a1 Mon Sep 17 00:00:00 2001
From: bx <bx@tilde.town>
Date: Sat, 2 Apr 2022 15:05:07 +0000
Subject: [PATCH] added instert line command

---
 c_insertline.c | 22 ++++++++++++++++++++++
 commands.c     |  1 +
 efn.c          |  1 +
 efn.h          |  1 +
 4 files changed, 25 insertions(+)
 create mode 100644 c_insertline.c

diff --git a/c_insertline.c b/c_insertline.c
new file mode 100644
index 0000000..f89f868
--- /dev/null
+++ b/c_insertline.c
@@ -0,0 +1,22 @@
+void
+c_insertline(char *c) {
+        c += 2;
+        int line = atoi(c);
+        for(; *c != 0 && *c != ' '; c++);
+        c += 1; // start of text
+        Row *r = b_getline(buffer, line);
+        if (r == NULL) {
+                printf("%i, invalid line.\n", line);
+                return;
+        }
+        // ^ same as write line
+        r = b_insert(r);
+        // v same as write line
+        int i = 0;
+        for (;i < ROW_SIZE && c[i] != 0; i++) {
+                r->text[i] = c[i];
+        }
+        for(;i < ROW_SIZE; i++) {
+                r->text[i] = 0;
+        }
+}
diff --git a/commands.c b/commands.c
index 968b80a..1a969a8 100644
--- a/commands.c
+++ b/commands.c
@@ -7,3 +7,4 @@ NULL,
 ['q'] = NULL,
 ['Q'] = c_quit,
 ['S'] = c_save,
+['i'] = c_insertline,
diff --git a/efn.c b/efn.c
index d499431..fa2d546 100644
--- a/efn.c
+++ b/efn.c
@@ -21,3 +21,4 @@
 #include "b_getline.c"
 
 #include "c_save.c"
+#include "c_insertline.c"
diff --git a/efn.h b/efn.h
index e118c15..1e09275 100644
--- a/efn.h
+++ b/efn.h
@@ -13,3 +13,4 @@ Row *b_insert(Row *);
 Row *b_getline(Row *, int);
 void c_writeline(char *);
 void c_save(char*);
+void c_insertline(char *);