Um, not sure if it's what you meant, but I already do support Ctrl-a to go to the beginning on the line and Ctrl-e to skip to the end within the search input.

Are there any specific shortcuts you want support for? I don't mind adding more support for common ones, but like, I'm not copying things like emacs mode or anything...

Oh, yeah, I see Ctrl-a and Ctrl-e work. Sorry, I must have missed that. Other shortcuts I often use are:

• Ctrl-f move cursor forward one character
• Ctrl-b move cursor back one character
• Alt-f move cursor forward one word
• Alt-b move cursor backward one word
• Ctrl-d delete a character after the cursor
• Ctrl-h delete backward one character
• Alt-d delete a word after the cursor
• Ctrl-w delete backward one word

Sounds good. Ctrl-w and Ctrl-h will be covered by #270, and the other suggested ones seem good to me at a glance.