Escape strings that may comes from remote sources

Use printf "%q" to escape branch names.

liquidprompt

@@ -317,6 +317,13 @@ unset _lp_source_config
 [[ "$LP_ENABLE_BZR"  = 1 ]] && { command -v bzr > /dev/null || LP_ENABLE_BZR=0  ; }
 [[ "$LP_ENABLE_BATT" = 1 ]] && { command -v acpi >/dev/null || LP_ENABLE_BATT=0 ; }
 
+# Escape the given strings
+# Must be used for all strings that may comes from remote sources, 
+# like VCS branch names
+_lp_escape()
+{
+    printf "%q" "$*"
+}
 
 
 ###############
@@ -688,7 +695,8 @@ _lp_git_branch()
         branch="$(git rev-parse --short HEAD 2>/dev/null)"
     fi
     [[ $? -ne 0 || -z "$branch" ]] && return
-    echo "${branch#refs/heads/}"
+    branch="${branch#refs/heads/}"
+    echo $(_lp_escape "$branch")
 }
 
 # Set a color depending on the branch state:
@@ -772,7 +780,8 @@ _lp_hg_branch()
     [[ "$LP_ENABLE_HG" != 1 ]] && return
     local branch
     branch="$(hg branch 2>/dev/null)"
-    [[ $? -eq 0 ]] && echo "$branch"
+    [[ $? -eq 0 ]] && echo $(_lp_escape "$branch")
+
 }
 
 # Set a color depending on the branch state:
@@ -813,7 +822,7 @@ _lp_svn_branch()
         echo trunk
     else
         result=$(expr "$url" : '.*/branches/\([^/]*\)' || expr "$url" : '/\([^/]*\)' || basename "$root")
-        echo $result
+        echo $(_lp_escape "$result")
     fi
 }
 
@@ -851,7 +860,7 @@ _lp_fossil_branch()
     local branch
     branch=$(fossil status 2>/dev/null | grep tags: | cut -c17-)
     if [[ -n "$branch" ]] ; then
-	echo "$branch"
+        echo $(_lp_escape "$branch")
     else
         if fossil info &>/dev/null ; then
             echo "no-tag"
@@ -920,7 +929,7 @@ _lp_fossil_branch_color()
                 branch="${LP_COLOR_CHANGES}$branch${NO_COL}$ret${LP_COLOR_CHANGES}$C2A${NO_COL}"
             fi
         fi
-        echo -ne "$branch"
+        echo $(_lp_escape "$branch")
     fi
 }
 
@@ -930,10 +939,10 @@ _lp_fossil_branch_color()
 _lp_bzr_branch()
 {
     [[ "$LP_ENABLE_BZR" != 1 ]] && return
-    local output
-    output=$(bzr nick 2> /dev/null)
+    local branch
+    branch=$(bzr nick 2> /dev/null)
     [[ $? -ne 0 ]] && return
-    echo "$output"
+    echo $(_lp_escape "$branch")
 }