From f5bdc7786840c548fba6ced03980abd6d7bfce1b Mon Sep 17 00:00:00 2001
From: lapcca <lapcca@163.com>
Date: Mon, 18 Apr 2016 06:18:43 -0400
Subject: [PATCH] add incr plugin

---
 custom/plugins/incr/incr.plugin.zsh | 141 ++++++++++++++++++++++++++++
 1 file changed, 141 insertions(+)
 create mode 100644 custom/plugins/incr/incr.plugin.zsh

diff --git a/custom/plugins/incr/incr.plugin.zsh b/custom/plugins/incr/incr.plugin.zsh
new file mode 100644
index 000000000..1a3ae6570
--- /dev/null
+++ b/custom/plugins/incr/incr.plugin.zsh
@@ -0,0 +1,141 @@
+
+autoload -U compinit
+zle -N self-insert self-insert-incr
+zle -N vi-cmd-mode-incr
+zle -N vi-backward-delete-char-incr
+zle -N backward-delete-char-incr
+zle -N expand-or-complete-prefix-incr
+compinit
+
+bindkey -M viins '^[' vi-cmd-mode-incr
+bindkey -M viins '^h' vi-backward-delete-char-incr
+bindkey -M viins '^?' vi-backward-delete-char-incr
+bindkey -M viins '^i' expand-or-complete-prefix-incr
+bindkey -M emacs '^h' backward-delete-char-incr
+bindkey -M emacs '^?' backward-delete-char-incr
+bindkey -M emacs '^i' expand-or-complete-prefix-incr
+
+unsetopt automenu
+compdef -d scp
+compdef -d tar
+compdef -d make
+compdef -d java
+compdef -d svn
+compdef -d cvs
+
+
+
+now_predict=0
+
+function limit-completion
+{
+	if ((compstate[nmatches] <= 1)); then
+		zle -M ""
+	elif ((compstate[list_lines] > 6)); then
+		compstate[list]=""
+		zle -M "too many matches."
+	fi
+}
+
+function correct-prediction
+{
+	if ((now_predict == 1)); then
+		if [[ "$BUFFER" != "$buffer_prd" ]] || ((CURSOR != cursor_org)); then
+			now_predict=0
+		fi
+	fi
+}
+
+function remove-prediction
+{
+	if ((now_predict == 1)); then
+		BUFFER="$buffer_org"
+		now_predict=0
+	fi
+}
+
+function show-prediction
+{
+
+	if
+		((PENDING == 0)) &&
+			((CURSOR > 1)) &&
+			[[ "$PREBUFFER" == "" ]] &&
+			[[ "$BUFFER[CURSOR]" != " " ]]
+	then
+		cursor_org="$CURSOR"
+		buffer_org="$BUFFER"
+		comppostfuncs=(limit-completion)
+		zle complete-word
+		cursor_prd="$CURSOR"
+		buffer_prd="$BUFFER"
+		if [[ "$buffer_org[1,cursor_org]" == "$buffer_prd[1,cursor_org]" ]]; then
+			CURSOR="$cursor_org"
+			if [[ "$buffer_org" != "$buffer_prd" ]] || ((cursor_org != cursor_prd)); then
+				now_predict=1
+			fi
+		else
+			BUFFER="$buffer_org"
+			CURSOR="$cursor_org"
+		fi
+		echo -n "\e[32m"
+	else
+		zle -M ""
+	fi
+}
+
+function preexec
+{
+	echo -n "\e[39m"
+}
+
+function vi-cmd-mode-incr
+{
+	correct-prediction
+	remove-prediction
+	zle vi-cmd-mode
+}
+
+function self-insert-incr
+{
+	correct-prediction
+	remove-prediction
+	if zle .self-insert; then
+		show-prediction
+	fi
+}
+
+function vi-backward-delete-char-incr
+{
+	correct-prediction
+	remove-prediction
+	if zle vi-backward-delete-char; then
+		show-prediction
+	fi
+}
+
+function expand-or-complete-prefix-incr
+{
+	correct-prediction
+	if ((now_predict == 1)); then
+		CURSOR="$cursor_prd"
+		now_predict=0
+		comppostfuncs=(limit-completion)
+		zle list-choices
+	else
+		remove-prediction
+		zle expand-or-complete-prefix-prefix
+	fi  
+}
+
+
+function backward-delete-char-incr
+{
+	correct-prediction
+	remove-prediction
+	if zle backward-delete-char; then
+		show-prediction
+	fi
+}
+
+