The first phase of any Tcl script evaluation is applying Tcl's parsing rules for breaking the script into its component parts. Note that the interp is not an input into the parsing operation. No interp state has any controlling effect on the way a Tcl script is parsed. The same string is always parsed into the same tokens.

Inputs

• Script: a Unicode codepoint sequence of known length.

Outputs

• Code: integer value
• Result:
• Parse tree that partitions the input script into substrings that are the structural parts of the script.

Steps

1. Comments