IDL-EREP
An enhanced interactive environment for IDL (Interactive Data Language).
It provides stronger command history, tab-completion, and key shortcuts.
idl_erep
This is the IDL Enhanced REPl which gives an enhanced interactive environment.
Installation
Just execute
$ gem install idl_erep
Then, you can execute idl_erep.
Usage
Just execute idl_erep like following:
$ idl_erep
Key mappings
Key mappings depends on rb-readline.
| key mappings | description |
|---|---|
| Tab | Auto-complete files and folder names |
| Ctrl + A | Go to the beginning of the line you are currently typing on |
| Ctrl + E | Go to the end of the line you are currently typing on |
| Ctrl + U | Clears the line before the cursor position. If you are at the end of the line, clears the entire line. |
| Ctrl + H | Same as backspace |
| Ctrl + R | Let's you search through previously used commands |
| Ctrl + W | Delete the word before the cursor |
| Ctrl + K | Clear the line after the cursor |
| Ctrl + T | Swap the last two characters before the cursor |
| Esc + T | Swap the last two words before the cursor |
| Alt + F | Move cursor forward one word on the current line |
| Alt + B | Move cursor backward one word on the current line |
Command History
When start this program, if there's a .idl_history file in current directory,
it will be loaded and ~/.idl_history won't be loaded.
If there's no .idl_history, ~/.idl_hisoty will be loaded.
It will allow you to keep command history only inside the project.
Configurations
In ~/.idl_profile, you can set some configurations of this environment.
| variable | default | description |
|---|---|---|
idlbin |
'idl' | PATH of IDL executable file |
prompt |
'IDL-EREP> ' | prompt string of this environment |
idlhist |
'~/.idl/idl/rbuf/history' | PATH of default IDL history file (used only reading) |
homehist |
'~/.idl_history' | PATH of IDL-EREP history file in home directory |
currhist |
'./.idl_history' | PATH of IDL-EREP history file in current directory |
histlim |
10000 | limit number of IDL-EREP history file elements |
defcomplist |
['help', 'plot', etc..] | default completion keywords list |
compfuncs |
['defcomplist', etc...] | completion functions |
There are some regex patterns for colorize stdout and stderr outputs.
If you want to customize these patterns, please see the source code.
| variable | description |
|---|---|
stderr_blink_prtn |
blink patterns for stderr |
stdout_blue_ptrn |
blue patterns for stdout |
stdout_green_ptrn |
green patterns for stdout |
stdout_yellow_ptrn |
yellow patterns for stdout |
About Completion Functions
You can add completion functions in ~/.idl_profile.
The functions must return array of completion keywords like following:
compfuncs = ["defcomplist", "get_dir_elems", "get_dir_pros"]
def get_dir_elems()
Dir::entries(Dir::pwd)
end
def get_dir_pros()
pros = Dir::entries(Dir::pwd).select do |i|
i =~ /\.pro$/
end
pros.map! do |i|
i.gsub(/\.pro$/, '')
end
pros
end