From 09baf73152e3fe61acc781ec0b6264a02ab9cdc8 Mon Sep 17 00:00:00 2001
From: Maxime Coste <frrrwww@gmail.com>
Date: Mon, 14 Mar 2016 20:59:23 +0000
Subject: [PATCH] Fix various posix shell compliance issues in the rc/ files

---
 rc/core/man.kak        | 4 ++--
 rc/extra/clang.kak     | 2 +-
 rc/extra/git-tools.kak | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/rc/core/man.kak b/rc/core/man.kak
index 27dae843..82de8b1a 100644
--- a/rc/core/man.kak
+++ b/rc/core/man.kak
@@ -37,7 +37,7 @@ def -hidden -params .. _man %{ %sh{
 
 def -params .. \
   -shell-completion %{
-    prefix=${1:0:${kak_pos_in_token}}
+    prefix=$(echo "$1" | cut -c1-${kak_pos_in_token} 2>/dev/null)
     for page in /usr/share/man/*/${prefix}*.[1-8]*; do
         candidate=$(basename ${page%%.[1-8]*})
         pagenum=$(printf %s "$page" | sed -r 's,^.+/.+\.([1-8][^.]*)\..+$,\1,')
@@ -52,7 +52,7 @@ def -params .. \
     pagenum=""
 
     ## The completion suggestions display the page number, strip them if present
-    if [[ $subject =~ [a-zA-Z_-]+\([^\)]+\) ]]; then
+    if expr "$subject" : '[a-zA-Z_-]+\([^\)]+\)'; then
         pagenum=${subject##*\(}
         pagenum=${pagenum:0:$((${#pagenum} - 1))}
         subject=${subject%%\(*}
diff --git a/rc/extra/clang.kak b/rc/extra/clang.kak
index ce9e09d1..0043cb51 100644
--- a/rc/extra/clang.kak
+++ b/rc/extra/clang.kak
@@ -37,7 +37,7 @@ def clang-parse -params 0..1 -docstring "Parse the contents of the current buffe
                 *) ft=c++ ;;
             esac
 
-            if [ "$1" == "-complete" ]; then
+            if [ "$1" = "-complete" ]; then
                 pos=-:${kak_cursor_line}:${kak_cursor_column}
                 header="${kak_cursor_line}.${kak_cursor_column}@${kak_timestamp}"
                 compl=$(clang++ -x ${ft} -fsyntax-only ${kak_opt_clang_options} \
diff --git a/rc/extra/git-tools.kak b/rc/extra/git-tools.kak
index 3d77e88b..080530c7 100644
--- a/rc/extra/git-tools.kak
+++ b/rc/extra/git-tools.kak
@@ -29,7 +29,7 @@ def -params 1.. \
   -docstring %sh{printf "%%{Git wrapping helper\navailable commands:\n add\n rm\n blame\n commit\n checkout\n diff\n hide-blame\n log\n show\n show-diff\n status\n update-diff}"} \
   -shell-completion %{
     shift $(expr ${kak_token_to_complete})
-    prefix=${1:0:${kak_pos_in_token}}
+    prefix=$(echo "${1}" | cut -c1-${kak_pos_in_token} 2>/dev/null)
     (
       for cmd in add rm blame commit checkout diff hide-blame log show show-diff status update-diff; do
           expr "${cmd}" : "^\(${prefix}.*\)$"