From b398a6c739f69b4c755d9c95148bbbc01faee0be Mon Sep 17 00:00:00 2001
From: Loic Nageleisen <loic.nageleisen@gmail.com>
Date: Thu, 19 Dec 2013 17:00:48 +0100
Subject: [PATCH] moving prompt utils out of bash prompt

---
 bash/ext           | 26 +++++++++++++++++++
 bash/prompt        | 64 +---------------------------------------------
 shell/prompt_utils | 41 +++++++++++++++++++++++++++++
 3 files changed, 68 insertions(+), 63 deletions(-)
 create mode 100644 shell/prompt_utils

diff --git a/bash/ext b/bash/ext
index 200e376..37e84b5 100644
--- a/bash/ext
+++ b/bash/ext
@@ -1,4 +1,7 @@
 # Make Bash more like Zsh
+
+
+# Hooks
 # derived from http://glyf.livejournal.com/63106.html
 
 # default: NOOPs
@@ -25,3 +28,26 @@ __preexec_invoke_exec () {
 PROMPT_COMMAND="precmd"
 trap '__preexec_invoke_exec' DEBUG
 cd() { __cd_invoke_chpwd $@; }
+
+
+# clears a line that was not terminated by a LF
+# fixing the dangling prompt issue
+# marks it with a reverse %, like zsh
+clear_incomplete_line() {
+    # ask for cursor position
+    echo -en "\033[6n"
+    # read answer
+    IFS=';' read -r -d R -a pos
+    # extract tput-compatible answer
+    local row=$((${pos[0]:2} - 1))
+    local col=$((${pos[1]} - 1))
+    # move back over terminal answer echo, which will hopefully be overwritten
+    tput cup $row $col
+
+    # not on first column? clean up! (overwrites answer)
+    # we print a terminal width worth of columns, but since 
+    # it goes too far, we backtrack with CR
+    [[ $col != 0 ]] && printf "\e[7m%%\e[m%*s\r" $((COLUMNS-1))
+    # else e.g prompt will overwrite answer echo
+}
+
diff --git a/bash/prompt b/bash/prompt
index dc8d7cb..1b99bac 100644
--- a/bash/prompt
+++ b/bash/prompt
@@ -1,66 +1,4 @@
-
-# truncates a string on the left
-# $1: string to truncate
-# $2: maximum length
-# $3: truncation string replacement (optional)
-# $4: separator symbol (optional, prevents truncation of rightmost item)
-__truncate_left() {
-    local str="$1"
-    local maxlen="$2"
-    local trunc_symbol="$3"
-    local sep_symbol="$4"
-
-    # get minimum length to not truncate a long name
-    if [ -n "$sep_symbol" ]
-    then
-        local component=${1##*$sep_symbol}
-        maxlen=$(( ( maxlen < ${#component} ) ? ${#component} : maxlen ))
-    fi
-
-    # truncation point
-    local offset=$(( ${#str} - maxlen ))
-
-    if [ ${offset} -gt "0" ]
-    then
-        #truncation is needed
-        str=${str:$offset:$maxlen}  #truncate
-        str=${trunc_symbol}/${str#*/}  #add symbol
-    fi
-    echo "$str"
-}
-
-# truncates a path
-__truncate_path() {
-    #gain some place with '~'
-    local path=${1/#$HOME/\~}
-    __truncate_left "$path" 25 '…' '/'
-}
-
-# truncates CWD
-__tpwd() {
-    __truncate_path "$PWD"
-}
-
-# clears a line that was not terminated by a LF
-# fixing the dangling prompt issue
-# marks it with a reverse %, like zsh
-clear_incomplete_line() {
-    # ask for cursor position
-    echo -en "\033[6n"
-    # read answer
-    IFS=';' read -r -d R -a pos
-    # extract tput-compatible answer
-    local row=$((${pos[0]:2} - 1))
-    local col=$((${pos[1]} - 1))
-    # move back over terminal answer echo, which will hopefully be overwritten
-    tput cup $row $col
-
-    # not on first column? clean up! (overwrites answer)
-    # we print a terminal width worth of columns, but since 
-    # it goes too far, we backtrack with CR
-    [[ $col != 0 ]] && printf "\e[7m%%\e[m%*s\r" $((COLUMNS-1))
-    # else e.g prompt will overwrite answer echo
-}
+source "$DOTFILES_SHELL_DIR/prompt_utils"
 
 # git prompt info
 source $DOTFILES_SHELL_DIR/git_prompt_info
diff --git a/shell/prompt_utils b/shell/prompt_utils
new file mode 100644
index 0000000..4619c6c
--- /dev/null
+++ b/shell/prompt_utils
@@ -0,0 +1,41 @@
+# truncates a string on the left
+# $1: string to truncate
+# $2: maximum length
+# $3: truncation string replacement (optional)
+# $4: separator symbol (optional, prevents truncation of rightmost item)
+__truncate_left() {
+    local str="$1"
+    local maxlen="$2"
+    local trunc_symbol="$3"
+    local sep_symbol="$4"
+
+    # get minimum length to not truncate a long name
+    if [ -n "$sep_symbol" ]
+    then
+        local component=${1##*$sep_symbol}
+        maxlen=$(( ( maxlen < ${#component} ) ? ${#component} : maxlen ))
+    fi
+
+    # truncation point
+    local offset=$(( ${#str} - maxlen ))
+
+    if [ ${offset} -gt "0" ]
+    then
+        #truncation is needed
+        str=${str:$offset:$maxlen}  #truncate
+        str=${trunc_symbol}/${str#*/}  #add symbol
+    fi
+    echo "$str"
+}
+
+# truncates a path
+__truncate_path() {
+    #gain some place with '~'
+    local path=${1/#$HOME/\~}
+    __truncate_left "$path" 25 '…' '/'
+}
+
+# truncates CWD
+__tpwd() {
+    __truncate_path "$PWD"
+}