updated to use ack completion module style version checking

-- instead of looking at major and minor, we'll do what the ack completion
   module does: produce an x.y version number that we then compare directly to,
   to avoid complicated "if major version OR minor version" checking

src/_ag

@@ -40,20 +40,12 @@
 # -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
 # vim: ft=zsh sw=2 ts=2 et
 # ------------------------------------------------------------------------------
-_ag_minor_version() {
-  local version
-  version=( $($words[1] --version) )
-  version=${version[@]:2:1}
-  version=( "${(@s/./)version}" )
-  echo "${version[2]}"
-}
 
-_ag_major_version() {
+_ag_version() {
   local version
   version=( $($words[1] --version) )
-  version=${version[@]:2:1}
-  version=( "${(@s/./)version}" )
-  echo "${version[1]}"
+  version=${${(z)${version[1]}}[2]}
+  echo $version
 }
 
 
@@ -78,10 +70,9 @@ _ag_add_file_types() {
 # Add version appropriate options above base
 # Modifies the global $AG_OPTS array
 _ag_add_version_opts() {
-  local minor=$(_ag_minor_version)
-  local major=$(_ag_major_version)
+  local ag_version=$(_ag_version)
 
-  if [[ $major -ge 1 || $minor -gt 21 ]];then
+  if [[ ag_version > 0.22 ]]; then
     _ag_add_file_types
     AG_OPTS+=(
       '(- 1 *)--list-file-types[list supported filetypes to search]'
@@ -89,19 +80,20 @@ _ag_add_version_opts() {
     )
   fi
     
-  if [[ $major -ge 1 || $minor -gt 22 ]];then
+
+  if [[ ag_version > 0.22 ]]; then
     AG_OPTS+=(
       '(-z --search-zip)'{-z,--search-zip}'[search contents of compressed files]'
     )
   fi
 
-  if [[ $major -lt 1 && $minor -le 24 ]];then
+  if [[ ag_version <= 0.24 ]]; then
     AG_OPTS+=(
       '(-s --case-sensitive)'{-s,--case-sensitive}'[match case sensitively]'
       '(--noheading --heading)'{--noheading,--heading}'[print file names above matching contents]'
     )
   fi
-  if [[ $major -ge 1 || $minor -gt 24 ]];then
+  if [[ ag_version > 0.24 ]]; then
     AG_OPTS+=(
       '(-s --case-sensitive)'{-s,--case-sensitive}'[Match case sensitively. Default on.]'
       '(-H --noheading --heading)'{-H,--noheading,--heading}'[print file names above matching contents]'
@@ -109,18 +101,18 @@ _ag_add_version_opts() {
     )
   fi
 
-  if [[ $major -ge 1 || $minor -gt 26 ]];then
+  if [[ ag_version > 0.26 ]]; then
     AG_OPTS+=(
       '(-0 --null --print0)'{-0,--null,--print0}'[separate the filenames with \\0, rather than \\n]'
     )
   fi
 
-  if [[ $major -lt 1 && $minor -le 27 ]];then
+  if [[ ag_version <= 0.27 ]]; then
     AG_OPTS+=(
       '--depth[Search up to NUM directories deep. Default is 25.]:number'
     )
   fi
-  if [[ $major -ge 1 || $minor -gt 27 ]];then
+  if [[ ag_version > 0.27 ]]; then
     AG_OPTS+=(
       '(-c --count)'{-c,--count}'[only print the number of matches in each file]'
       '--depth[Search up to NUM directories deep, -1 for unlimited. Default is 25.]:number'
@@ -128,12 +120,12 @@ _ag_add_version_opts() {
     )
   fi
 
-  if [[ $major -lt 1 && $minor -le 28 ]];then
+  if [[ ag_version <= 0.28 ]]; then
     AG_OPTS+=(
       '(--no-numbers)--no-numbers[don´t show line numbers]'
     )
   fi
-  if [[ $major -ge 1 || $minor -gt 28 ]];then
+  if [[ ag_version > 0.28 ]]; then
     AG_OPTS+=(
       '(--nofilename --filename)'{--nofilename,--filename}'[Print file names. Default on, except when searching a single file.]'
       '(--nonumbers --numbers)'{--nonumbers,--numbers}'[Print line numbers. Default is to omit line numbers when searching streams]'