diff options
Diffstat (limited to 'regcomp.sym')
| -rw-r--r-- | regcomp.sym | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/regcomp.sym b/regcomp.sym index 19d729eb9d..1a2bd3101b 100644 --- a/regcomp.sym +++ b/regcomp.sym @@ -3,6 +3,11 @@ # Empty rows and #-comment rows are ignored. +# Note that the order in this file is important. +# +# Add new regops to the end, and do not re-order the existing ops. +# + # Exit points END END, no End of program. SUCCEED END, no Return from a subroutine, basically. @@ -116,7 +121,12 @@ RENUM BRANCHJ,off 1 1 Group with independently numbered parens. OPTIMIZED NOTHING,off Placeholder for dump. # Trie Related (behave the same as A|LIST|OF|WORDS would) -TRIE TRIE, trie 1 Match one or more of many EXACT strings -TRIEF TRIE, trie 1 Match one or more of many EXACTF strings -TRIEFL TRIE, trie 1 Match one or more of many EXACTFL strings - +TRIE TRIE, trie 1 Match many EXACT(FL?)? at once. flags==type +TRIEC TRIE, trie 1 Trie + charclass. (unused at present) + +# Special opcode with the property that no opcode in a compiled program +# will ever be of this type. Thus it can be used as a flag value that +# no other opcode has been seen. END is used similarly, in that an END +# node cant be optimized. So END implies "unoptimizable" and PSEUDO mean +# "not seen anything to optimize yet". +PSEUDO PSEUDO,off Pseudo opcode for internal use. |