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3.2.1 Modifying Existing Code ¶

Try these commands to modify code:

Key	Command	Description
x	symex-delete	Delete an expression. This accepts counts, so 3x deletes three expressions.
c	symex-change	Change an expression to whatever you enter. This leaves Symex mode so that you can enter the replacement in the buffer. This accepts counts, so 3c changes three expressions.
y	symex-yank	Copy the expression to the kill ring. This accepts counts, so 3y copies three expressions.
p	symex-paste-after	Paste from the kill ring, after the current expression. This accepts counts, so 3p pastes three times.
P	symex-paste-before	Paste from the kill ring, before the current expression. This accepts counts, so 3p pastes three times.
<tab>	symex-tidy	Tidies and indents the expression. This accepts counts, so 3<tab> indents three expressions.

Next, we’ll see a few simple ways to enter new code into the buffer in a context-sensitive way.