From bf008e70432ada9a31dde7e6ad54ac92a3d4684c Mon Sep 17 00:00:00 2001
From: Robin Jadoul <robin.jadoul@gmail.com>
Date: Mon, 16 Jan 2017 16:57:53 +0100
Subject: [PATCH] Bash completion

---
 Parsodus-completion.bash | 64 ++++++++++++++++++++++++++++++++++++++++
 TODO                     |  2 +-
 2 files changed, 65 insertions(+), 1 deletion(-)
 create mode 100644 Parsodus-completion.bash

diff --git a/Parsodus-completion.bash b/Parsodus-completion.bash
new file mode 100644
index 0000000..b58b86c
--- /dev/null
+++ b/Parsodus-completion.bash
@@ -0,0 +1,64 @@
+_Parsodus_completion ()
+{
+    local langs
+    langs='c++ cpp cxx'
+
+    local opts
+    opts='-h --help --version -d --outputdir -l --language -n --name'
+    # local prev
+    COMPREPLY=()
+    local cur
+    cur=${COMP_WORDS[COMP_CWORD]}
+    local prev
+    local pprev
+    if [ $COMP_CWORD -gt 1 ]; then
+        prev=${COMP_WORDS[ $(( $COMP_CWORD - 1 )) ]}
+    fi
+    if [ $COMP_CWORD -gt 2 ]; then
+        pprev=${COMP_WORDS[ $(( $COMP_CWORD - 2 )) ]}
+    fi
+
+    case "$cur" in
+        -*)
+            COMPREPLY=( $(compgen -W "$opts" -- $cur) )
+            ;;
+        =*)
+            case "$prev" in
+                --language)
+                    COMPREPLY=( $(compgen -W "$langs" ))
+                    ;;
+                --outputdir)
+                    COMPREPLY=( $(compgen -d ) )
+                    ;;
+            esac
+            ;;
+        *)
+            if [ "$prev" == "=" ]; then
+                case "$pprev" in
+                    --language)
+                        COMPREPLY=( $(compgen -W "$langs" -- $cur))
+                        ;;
+                    --outputdir)
+                        COMPREPLY=( $(compgen -d -- $cur) )
+                        ;;
+                esac
+            else
+                case "$prev" in
+                    -l|--language)
+                        COMPREPLY=( $(compgen -W "$langs" -- $cur))
+                        ;;
+                    -d|--outputdir)
+                        COMPREPLY=( $(compgen -d -S "/" -- $cur) )
+                        [[ $COMPREPLY == */ ]] && compopt -o nospace
+                        ;;
+                    *)
+                        COMPREPLY=( $(compgen -f -X '!*.pds' -- $cur) $(compgen -d -S "/" -- $cur))
+                        [[ $COMPREPLY == */ ]] && compopt -o nospace
+                        ;;
+                esac
+            fi
+            ;;
+    esac
+}
+
+complete -F _Parsodus_completion Parsodus
diff --git a/TODO b/TODO
index 006a448..1691eb8 100644
--- a/TODO
+++ b/TODO
@@ -30,7 +30,6 @@ K> Parsodus Parsodus parser
 -> presentation
 
 -> Error reporting
--> bash completion
 -> bool specialization in backend?
 -> publication / LICENSE
 
@@ -50,3 +49,4 @@ R> README
 -----------------------------------------------------------------------
 R> Precedence resolution in generator
 R> man pages
+R> bash completion