Issue 14 - cookcc - Implement yyPushStream & yyPopStream

Issue 14:	Implement yyPushStream & yyPopStream
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Status:	Fixed
Owner:	----
Closed:	Jul 21
Type-Enhancement
Priority-Medium

Reported by fodber, Jul 03, 2009

In JFlex and other lexer generators there is the possibility to include
files, that is, switching the lexer to an other reader.
It would be great if this project handled this as well.

Comment 1 by superduperhengyuan, Jul 21, 2009

Changed this issue to a feature enhancement request.

I will think about it.  This feature is not trivial.

1. Not only the streams need to be push / popped, the extra characters already read
in must also be pushed / popped.
2. EOF handling may be more complicated.

Labels: -Type-Defect Type-Enhancement

Comment 2 by superduperhengyuan, Jul 21, 2009

(No comment was entered for this change.)

Status: Accepted

Comment 3 by superduperhengyuan, Jul 21, 2009

added yyPushInput, yyPopInput, yyInputStackSize, yyWrap functions (and yywrap option).

See r674.

Status: Fixed