3 commits

Author	SHA1	Message	Date
Russ Cox	b4cae4aee2	exp/regexp/syntax: finish Regexp manipulation ... Except for the inevitable bug fixes, the Regexp code is done. R=sam.thorogood, r CC=golang-dev https://golang.org/cl/4635082	2011-06-30 10:26:22 -04:00
Russ Cox	7e1a3e9f20	exp/regexp/syntax: incremental concat, alternate ... Also reuse of *Regexp nodes. I believe this is the end of the parser. The only non-execution code that remains is the code to expand x{3,5} into simpler operations. R=sam.thorogood, r CC=golang-dev https://golang.org/cl/4629078	2011-06-29 00:55:37 -04:00
Russ Cox	b96c3477f8	exp/regexp/syntax: syntax data structures, parser ... Parser is a work in progress but can populate most of the interesting parts of the data structure, so a good checkpoint. All the complicated Perl syntax is missing, as are various important optimizations made during parsing to the syntax tree. The plan is that exp/regexp's API will mimic regexp, and exp/regexp/syntax provides the parser directly for programs that need it (and for implementing exp/regexp). Once finished, exp/regexp will replace regexp. R=r, sam.thorogood, kevlar, edsrzf CC=golang-dev https://golang.org/cl/4538123	2011-06-13 09:20:23 -04:00